!756 fix: 修复重复执行内存用例导致系统卡死问题

Merge pull request !756 from Harylee/print

BUILD.gn

@@ -29,17 +29,14 @@
 
 import("//build/lite/config/component/lite_component.gni")
 
+LITEOS_MENUCONFIG_H = rebase_path("$root_out_dir/config.h")
+
 declare_args() {
   tee_enable = false
   liteos_name = "OHOS_Image"
   liteos_skip_make = false
 }
 
-cmd = "if [ -f $device_path/BUILD.gn ]; then echo true; else echo false; fi"
-HAVE_DEVICE_SDK = exec_script("//build/lite/run_shell_cmd.py", [ cmd ], "value")
-
-LITEOS_MENUCONFIG_H = rebase_path("$root_out_dir/config.h")
-
 tee = ""
 if (tee_enable) {
   tee = "_tee"
@@ -49,29 +46,27 @@ declare_args() {
   liteos_config_file = "${ohos_build_type}${tee}.config"
 }
 
-liteos_config_file = rebase_path(liteos_config_file, "", "$product_path/kernel_configs")
+liteos_config_file =
+    rebase_path(liteos_config_file, "", "$product_path/kernel_configs")
 print("liteos_config_file:", liteos_config_file)
 
 exec_script("//build/lite/run_shell_cmd.py",
-            [
-              "env" +
-              " CONFIG_=LOSCFG_" +
-              " KCONFIG_CONFIG_HEADER='y=true'" +
-              " KCONFIG_CONFIG=$liteos_config_file" +
-              " DEVICE_PATH=$device_path" +
-              " srctree=" + rebase_path(".") +
-              " genconfig" +
-              " --header-path $LITEOS_MENUCONFIG_H" +
-              " --file-list kconfig_files.txt" +
-              " --env-list kconfig_env.txt" +
-              " --config-out config.gni",
-            ], "", [ liteos_config_file ])
+            [ "env" + " CONFIG_=LOSCFG_" + " KCONFIG_CONFIG_HEADER='y=true'" +
+                  " KCONFIG_CONFIG=$liteos_config_file" +
+                  " DEVICE_PATH=$device_path" + " srctree=" + rebase_path(".") +
+                  " genconfig" + " --header-path $LITEOS_MENUCONFIG_H" +
+                  " --file-list kconfig_files.txt" +
+                  " --env-list kconfig_env.txt" + " --config-out config.gni" ],
+            "",
+            [ liteos_config_file ])
 
 import("liteos.gni")
 
 assert(ARCH != "", "ARCH not set!")
 assert(ARCH == arch, "ARCH not match! details: $ARCH != $arch")
 assert(tee_enable == defined(LOSCFG_TEE_ENABLE), "TEE switch not match!")
+assert(ohos_build_compiler == "clang" == defined(LOSCFG_COMPILER_CLANG_LLVM),
+       "compiler not match!")
 
 generate_notice_file("kernel_notice_file") {
   module_name = "kernel"
@@ -113,7 +108,7 @@ config("arch_config") {
   ldflags = cflags
   if (defined(LOSCFG_ARCH_ARM_AARCH32)) {
     if (!defined(LOSCFG_COMPILER_CLANG_LLVM)) {
-      cflags += ["-mthumb-interwork"]
+      cflags += [ "-mthumb-interwork" ]
     }
   }
   if (defined(LOSCFG_THUMB)) {
@@ -127,7 +122,9 @@ config("arch_config") {
 }
 
 config("stdinc_config") {
-  std_include = exec_script("//build/lite/run_shell_cmd.py", [ "$cc -print-file-name=include" ], "trim string")
+  std_include = exec_script("//build/lite/run_shell_cmd.py",
+                            [ "$cc -print-file-name=include" ],
+                            "trim string")
   cflags = [
     "-isystem",
     std_include,
@@ -177,7 +174,7 @@ config("optimize_config") {
     if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
       cflags += [ "-flto=thin" ]
     } else {
-      cflags += [ "-flto" ]
+      #cflags += [ "-flto" ]
     }
   }
   cflags += [ optimization_cflag ]
@@ -199,8 +196,10 @@ config("warn_config") {
     "-Wpointer-arith",
     "-Wstrict-prototypes",
     "-Winvalid-pch",
-    "-Wno-address-of-packed-member",
   ]
+  if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
+    cflags += [ "-Wno-address-of-packed-member" ]
+  }
   asmflags = cflags
 }
 
@@ -211,6 +210,7 @@ config("dialect_config") {
 
 config("misc_config") {
   defines = [ "__LITEOS__" ]
+  defines += [ "__LITEOS_A__" ]
   if (!defined(LOSCFG_DEBUG_VERSION)) {
     defines += [ "NDEBUG" ]
   }
@@ -250,62 +250,12 @@ config("los_config") {
   ]
 }
 
-executable("liteos") {
-  configs = [] # clear default configs
-  configs += [ ":arch_config" ]
-  configs += [ ":public" ]
-
-  ldflags = [
-    "-static",
-    "-nostdlib",
-    "-Wl,--gc-sections",
-    "-Wl,-Map=$liteos_name.map",
-    "-Wl,--no-eh-frame-hdr",
-  ]
-
-  libgcc = exec_script("//build/lite/run_shell_cmd.py", [ "$cc -print-libgcc-file-name" ], "trim string")
-  libs = [ libgcc ]
-  if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
-    ldflags += [ "-Wl,-T" + rebase_path("tools/build/liteos_llvm.ld", root_build_dir) ]
-    inputs = [ "tools/build/liteos_llvm.ld" ]
-  } else {
-    ldflags += [ "-Wl,-T" + rebase_path("tools/build/liteos.ld", root_build_dir) ]
-    ldflags += [ "-Wl,-nostartfiles" ]
-    inputs = [ "tools/build/liteos.ld" ]
-  }
-
-  inputs += [ "$root_out_dir/board.ld" ]
-
-  output_dir = target_out_dir
-
-  deps = [
-    "platform:copy_board.ld",
-    ":modules",
-  ]
-}
-
-copy("copy_liteos") {
-  deps = [ ":liteos" ]
-  sources = [ "$target_out_dir/unstripped/bin/liteos" ]
-  outputs = [ "$root_out_dir/$liteos_name" ]
-}
-
-build_ext_component("build_kernel_image") {
-  deps = [ ":copy_liteos" ]
-  exec_path = rebase_path(root_out_dir)
-
-  objcopy = "${compile_prefix}objcopy$toolchain_cmd_suffix"
-  objdump = "${compile_prefix}objdump$toolchain_cmd_suffix"
-
-  command = "$objcopy -O binary $liteos_name $liteos_name.bin"
-  command += " && sh -c '$objdump -t $liteos_name | sort >$liteos_name.sym.sorted'"
-  command += " && sh -c '$objdump -d $liteos_name >$liteos_name.asm'"
-}
+cmd = "if [ -f $device_path/BUILD.gn ]; then echo true; else echo false; fi"
+HAVE_DEVICE_SDK = exec_script("//build/lite/run_shell_cmd.py", [ cmd ], "value")
 
 config("public") {
   configs = [
     "arch:public",
-    "platform:public",
     "kernel:public",
     "compat:public",
     "bsd:public",
@@ -337,15 +287,14 @@ group("modules") {
     "kernel",
     "lib",
     "net",
-    "platform",
     "security",
     "shell",
     "syscall",
   ]
 
   deps += [
-    HDFTOPDIR,
     "//drivers/liteos",
+    HDFTOPDIR,
   ]
 
   if (HAVE_DEVICE_SDK) {
@@ -369,10 +318,69 @@ group("liteos_a") {
   deps = [
     ":apps",
     ":kernel",
+    ":make",
     ":tests",
+    "//prebuilts/lite/sysroot/build:strip",
   ]
 }
 
+executable("liteos") {
+  configs = []  # clear default configs
+  configs += [ ":arch_config" ]
+  configs += [ ":public" ]
+
+  ldflags = [
+    "-static",
+    "-nostdlib",
+    "-Wl,--gc-sections",
+    "-Wl,-Map=$liteos_name.map",
+    "-Wl,--no-eh-frame-hdr",
+  ]
+
+  libgcc = exec_script("//build/lite/run_shell_cmd.py",
+                       [ "$cc -print-libgcc-file-name" ],
+                       "trim string")
+  libs = [ libgcc ]
+  if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
+    ldflags +=
+        [ "-Wl,-T" + rebase_path("tools/build/liteos_llvm.ld", root_build_dir) ]
+    inputs = [ "tools/build/liteos_llvm.ld" ]
+  } else {
+    ldflags +=
+        [ "-Wl,-T" + rebase_path("tools/build/liteos.ld", root_build_dir) ]
+    ldflags += [ "-Wl,-nostartfiles" ]
+    inputs = [ "tools/build/liteos.ld" ]
+  }
+
+  inputs += [ "$root_out_dir/board.ld" ]
+
+  output_dir = target_out_dir
+
+  deps = [
+    ":modules",
+    "platform:copy_board.ld",
+  ]
+}
+
+copy("copy_liteos") {
+  deps = [ ":liteos" ]
+  sources = [ "$target_out_dir/unstripped/bin/liteos" ]
+  outputs = [ "$root_out_dir/$liteos_name" ]
+}
+
+build_ext_component("build_kernel_image") {
+  deps = [ ":copy_liteos" ]
+  exec_path = rebase_path(root_out_dir)
+
+  objcopy = "${compile_prefix}objcopy$toolchain_cmd_suffix"
+  objdump = "${compile_prefix}objdump$toolchain_cmd_suffix"
+
+  command = "$objcopy -O binary $liteos_name $liteos_name.bin"
+  command +=
+      " && sh -c '$objdump -t $liteos_name | sort >$liteos_name.sym.sorted'"
+  command += " && sh -c '$objdump -d $liteos_name >$liteos_name.asm'"
+}
+
 build_ext_component("make") {
   exec_path = rebase_path(".", root_build_dir)
   outdir = rebase_path("$target_out_dir/${target_name}_out")

Kconfig

@@ -94,15 +94,6 @@ source "platform/Kconfig"
 ######################### config options of cpu arch ################
 source "arch/Kconfig"
 
-######################### config options of rootfs #####################
-source "kernel/common/rootfs/Kconfig"
-######################### config options of patchfs #####################
-source "kernel/common/patchfs/Kconfig"
-######################### config options of blackbox #####################
-source "kernel/common/blackbox/Kconfig"
-######################### config options of hidumper #####################
-source "kernel/common/hidumper/Kconfig"
-
 config QUICK_START
     bool "Enable QUICK_START"
     default n
@@ -123,36 +114,7 @@ endmenu
 
 ######################## config options of filesystem ##################
 menu "FileSystem"
-source "fs/vfs/Kconfig"
-source "fs/fat/Kconfig"
-source "fs/ramfs/Kconfig"
-source "fs/romfs/Kconfig"
-source "fs/nfs/Kconfig"
-source "fs/proc/Kconfig"
-source "fs/jffs2/Kconfig"
-source "fs/zpfs/Kconfig"
-config ENABLE_READ_BUFFER
-    bool "Enable read buffer Option"
-    default n
-    depends on FS_VFS
-    help
-      Answer Y to add enable read buffer Option.
-
-config MAX_VNODE_SIZE
-    int "Vnode max number"
-    range 0 512
-    default 512
-    depends on FS_VFS
-    help
-      vnode number, range from 0 to 512.
-
-config MAX_PATH_CACHE_SIZE
-    int "PathCache max number"
-    range 0 1024
-    default 512
-    depends on FS_VFS
-    help
-      pathCache number, range from 0 to 1024.
+source "fs/Kconfig"
 endmenu
 
 ######################## config options of net ############################
@@ -324,29 +286,10 @@ endmenu
 
 ######################## config options os drivers ########################
 menu "Driver"
-config DRIVERS
-    bool "Enable Driver"
-    default y
-    help
-      Answer Y to enable LiteOS support driver.
-
-source "bsd/dev/usb/Kconfig"
-source "../../drivers/adapter/khdf/liteos/Kconfig"
-
-# Device driver Kconfig import
-source "$(DEVICE_PATH)/drivers/Kconfig"
-
-source "drivers/char/mem/Kconfig"
-source "drivers/char/quickstart/Kconfig"
-source "drivers/char/random/Kconfig"
-source "drivers/char/video/Kconfig"
-source "drivers/char/trace/Kconfig"
-
-source "../../drivers/liteos/tzdriver/Kconfig"
-source "../../drivers/liteos/hievent/Kconfig"
-
+source "drivers/Kconfig"
 endmenu
 
+######################## config options os security #######################
 menu "Security"
 source "security/Kconfig"
 endmenu

Makefile

@@ -61,12 +61,6 @@ endif
 
 KCONFIG_CONFIG ?= $(CONFIG)
 SYSROOT_PATH ?= $(OUT)/sysroot
-LITEOS_MENUCONFIG_H ?= $(LITEOSTOPDIR)/config.h
-LITEOS_CONFIG_FILE ?= $(LITEOSTOPDIR)/.config
-
-# export los_config.mk related environment variables
-export LITEOS_MENUCONFIG_H
-export LITEOS_CONFIG_FILE
 
 # export subdir Makefile related environment variables
 export SYSROOT_PATH
@@ -125,7 +119,6 @@ help:
 
 sysroot:
 	$(HIDE)echo "sysroot:" $(abspath $(SYSROOT_PATH))
-ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
 ifeq ($(origin SYSROOT_PATH),file)
 	$(HIDE)mkdir -p $(SYSROOT_PATH)/build && cd $(SYSROOT_PATH)/build && \
 	ln -snf $(LITEOSTOPDIR)/../../prebuilts/lite/sysroot/build/Makefile && \
@@ -135,20 +128,18 @@ ifeq ($(origin SYSROOT_PATH),file)
 		ARCH_CFLAGS="$(LITEOS_CORE_COPTS) -w" \
 		TOPDIR="$(LITEOSTOPDIR)/../.." \
 		SYSROOTDIR="$(SYSROOT_PATH)" \
-		CLANG="$(LITEOS_COMPILER_PATH)clang" \
-		BUILD_ALL_MULTILIB=false \
+		$(if $(LOSCFG_COMPILER_CLANG_LLVM),CLANG="$(LITEOS_COMPILER_PATH)clang",GCC="$(CC)") \
 		BUILD_DEBUG=$(if $(patsubst y,,$(or $(RELEASE:1=y),n)),true,false)
 endif
-endif
 
-$(KCONFIG_CMDS):
+$(filter-out menuconfig,$(KCONFIG_CMDS)):
 	$(HIDE)$@ $(args)
 
 $(LITEOS_CONFIG_FILE): $(KCONFIG_CONFIG)
 	$(HIDE)env KCONFIG_CONFIG=$< genconfig --config-out $@ --header-path $(LITEOS_MENUCONFIG_H)
 
-update_config:
-	$(HIDE)test -f "$(CONFIG)" && cp -v "$(CONFIG)" .config && menuconfig && savedefconfig --out "$(CONFIG)"
+update_config menuconfig:
+	$(HIDE)test -f "$(CONFIG)" && cp -v "$(CONFIG)" .config && menuconfig $(args) && savedefconfig --out "$(CONFIG)"
 
 $(LITEOS_LIBS_TARGET): sysroot
 	$(HIDE)for dir in $(LIB_SUBDIRS); do $(MAKE) -C $$dir all || exit 1; done

apps/BUILD.gn

@@ -34,8 +34,8 @@ group("apps") {
 
   if (defined(LOSCFG_SHELL)) {
     deps += [
-      "shell",
       "mksh",
+      "shell",
       "toybox",
     ]
   }
@@ -51,4 +51,12 @@ group("apps") {
   if (defined(LOSCFG_DRIVERS_TRACE)) {
     deps += [ "trace" ]
   }
+
+  if (defined(LOSCFG_DRIVERS_PERF)) {
+    deps += [ "perf" ]
+  }
+
+  if (defined(LOSCFG_KERNEL_LMS)) {
+    deps += [ "lms:sample_usr_lms" ]
+  }
 }

apps/Makefile

@@ -34,14 +34,7 @@ export APPSTOPDIR
 
 include $(APPSTOPDIR)/config.mk
 
-all:
-ifneq ($(APP_SUBDIRS), )
-	$(HIDE) for dir in $(APP_SUBDIRS); do $(MAKE) -C $$dir all || exit 1; done
-endif
-
-clean:
-ifneq ($(APP_SUBDIRS), )
-	$(HIDE) for dir in $(APP_SUBDIRS); do $(MAKE) -C $$dir clean || exit 1; done
-endif
+all clean:
+	$(HIDE) for dir in $(APP_SUBDIRS); do $(MAKE) -C $$dir $@ || exit 1; done
 
 .PHONY: all clean

apps/app.mk

@@ -27,88 +27,6 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-OBJOUT := $(BUILD)$(dir $(subst $(LITEOSTOPDIR),,$(shell pwd)))$(APP_NAME)
+override TARGET = $(OUT)/bin/$(APP_NAME)
 
-APP := $(OUT)/bin/$(APP_NAME)
-
-# create a separate list of objects per source type
-
-LOCAL_CSRCS := $(filter %.c,$(LOCAL_SRCS))
-LOCAL_CPPSRCS := $(filter %.cpp,$(LOCAL_SRCS))
-LOCAL_ASMSRCS := $(filter %.S,$(LOCAL_SRCS))
-LOCAL_ASMSRCS2 := $(filter %.s,$(LOCAL_SRCS))
-LOCAL_CCSRCS := $(filter %.cc,$(LOCAL_SRCS))
-
-LOCAL_COBJS := $(patsubst %.c,$(OBJOUT)/%.o,$(LOCAL_CSRCS))
-LOCAL_CPPOBJS := $(patsubst %.cpp,$(OBJOUT)/%.o,$(LOCAL_CPPSRCS))
-LOCAL_ASMOBJS := $(patsubst %.S,$(OBJOUT)/%.o,$(LOCAL_ASMSRCS))
-LOCAL_ASMOBJS2 := $(patsubst %.s,$(OBJOUT)/%.o,$(LOCAL_ASMSRCS2))
-LOCAL_CCOBJS := $(patsubst %.cc,$(OBJOUT)/%.o,$(LOCAL_CCSRCS))
-
-LOCAL_OBJS := $(LOCAL_COBJS) $(LOCAL_CPPOBJS) $(LOCAL_ASMOBJS) $(LOCAL_ASMOBJS2) $(LOCAL_CCOBJS)
-
-LOCAL_CGCH := $(patsubst %.h,%.h.gch,$(LOCAL_CHS))
-LOCAL_CPPGCH := $(patsubst %.h,%.h.gch,$(LOCAL_CPPHS))
-
-all : $(APP)
-
-define ECHO =
-ifeq ($$(HIDE),@)
-_$(1) := $($(1))
-$(1) = echo "  $(1)" $$(patsubst $$(OUT)/%,%,$$@) && $$(_$(1))
-endif
-endef
-$(foreach cmd,CC GPP AS,$(eval $(call ECHO,$(cmd))))
-
-LOCAL_FLAGS += -MD -MP
--include $(LOCAL_OBJS:%.o=%.d)
-
-$(LOCAL_COBJS): $(OBJOUT)/%.o: %.c
-	$(HIDE)$(OBJ_MKDIR)
-	$(HIDE)$(CC) $(CFLAGS) $(LOCAL_FLAGS) $(LOCAL_CFLAGS) -c $< -o $@
-
-$(LOCAL_CPPOBJS): $(OBJOUT)/%.o: %.cpp
-	$(HIDE)$(OBJ_MKDIR)
-	$(HIDE)$(GPP) $(CXXFLAGS) $(LOCAL_FLAGS) $(LOCAL_CPPFLAGS) -c $< -o $@
-
-$(LOCAL_ASMOBJS): $(OBJOUT)/%.o: %.S
-	$(HIDE)$(OBJ_MKDIR)
-	$(HIDE)$(CC) $(CFLAGS) $(LOCAL_FLAGS) $(LOCAL_ASFLAGS) -c $< -o $@
-
-$(LOCAL_ASMOBJS2): $(OBJOUT)/%.o: %.s
-	$(HIDE)$(OBJ_MKDIR)
-	$(HIDE)$(AS) $(ASFLAGS) $(LOCAL_FLAGS) $(LOCAL_ASFLAGS) -c $< -o $@
-
-$(LOCAL_CCOBJS): $(OBJOUT)/%.o: %.cc
-	$(HIDE)$(OBJ_MKDIR)
-	$(HIDE)$(GPP) $(CXXFLAGS) $(LOCAL_FLAGS) $(LOCAL_CPPFLAGS) -c $< -o $@
-
-$(LOCAL_CGCH): %.h.gch : %.h
-	$(HIDE)$(CC) $(CFLAGS) $(LOCAL_FLAGS) $(LOCAL_CFLAGS) $> $^
-
-$(LOCAL_CPPGCH): %.h.gch : %.h
-	$(HIDE)$(GPP) $(CXXFLAGS) $(LOCAL_FLAGS) $(LOCAL_CPPFLAGS) -x c++-header $> $^
-
-LOCAL_GCH := $(LOCAL_CGCH) $(LOCAL_CPPGCH)
-
-$(LOCAL_OBJS): $(LOCAL_GCH)
-$(APP): $(LOCAL_OBJS)
-	$(HIDE)$(OBJ_MKDIR)
-	$(HIDE)$(GPP) $(LDFLAGS) -o $@ $^
-
-clean:
-	$(HIDE)$(RM) $(APP) $(OBJOUT) $(LOCAL_GCH) *.bak *~
-
-.PHONY: all clean
-
-# clear some variables we set here
-LOCAL_CSRCS :=
-LOCAL_CPPSRCS :=
-LOCAL_ASMSRCS :=
-LOCAL_COBJS :=
-LOCAL_CPPOBJS :=
-LOCAL_ASMOBJS :=
-LOCAL_ASMOBJS2 :=
-
-# LOCAL_OBJS is passed back
-#LOCAL_OBJS :=
+include $(MODULE)

apps/config.mk

@@ -30,7 +30,7 @@
 include $(LITEOSTOPDIR)/config.mk
 
 # common flags config
-BASE_OPTS := -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE $(LITEOS_GCOV_OPTS)
+BASE_OPTS := -D_FORTIFY_SOURCE=2 -D_XOPEN_SOURCE=700
 
 ASFLAGS   :=
 CFLAGS    := $(LITEOS_COPTS) $(BASE_OPTS) -fPIE
@@ -70,11 +70,6 @@ ifeq ($(LOSCFG_DRIVERS_TRACE), y)
 APP_SUBDIRS += trace
 endif
 
-# clear all local variables
-LOCAL_FLAGS    :=
-LOCAL_CFLAGS   :=
-LOCAL_CPPFLAGS :=
-LOCAL_ASFLAGS  :=
-LOCAL_SRCS     :=
-LOCAL_CHS      :=
-LOCAL_CPPHS    :=
+ifeq ($(LOSCFG_DRIVERS_PERF), y)
+APP_SUBDIRS += perf
+endif

apps/lms/BUILD.gn

@@ -0,0 +1,77 @@
+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//build/lite/config/component/lite_component.gni")
+lite_component("LMS-Sample") {
+  features = [ ":sample_usr_lms" ]
+}
+executable("sample_usr_lms") {
+  output_name = "sample_usr_lms"
+  sources = [ "src/sample_usr_lms.c" ]
+  include_dirs = []
+  defines = []
+  if (ohos_build_compiler == "gcc") {
+    cflags_c = [
+      "-O0",
+      "-fsanitize=kernel-address",
+      "-funwind-tables",
+      "-fasynchronous-unwind-tables",
+    ]
+  } else {
+    cflags_c = [
+      "-O0",
+      "-fsanitize=kernel-address",
+      "-mllvm",
+      "-asan-instrumentation-with-call-threshold=0",
+      "-mllvm",
+      "-asan-stack=0",
+      "-mllvm",
+      "-asan-globals=0",
+      "-funwind-tables",
+      "-fasynchronous-unwind-tables",
+    ]
+  }
+  ldflags = [
+    "-rdynamic",
+    "-lunwind",
+    "-lusrlms",
+    "-Wl,--wrap=realloc",
+    "-Wl,--wrap=calloc",
+    "-Wl,--wrap=malloc",
+    "-Wl,--wrap=free",
+    "-Wl,--wrap=valloc",
+    "-Wl,--wrap=aligned_alloc",
+    "-Wl,--wrap=memset",
+    "-Wl,--wrap=memcpy",
+    "-Wl,--wrap=memmove",
+    "-Wl,--wrap=strcpy",
+    "-Wl,--wrap=strcat",
+  ]
+  deps = [ "//kernel/liteos_a/kernel/extended/lms/usr:usrlmslib" ]
+}

apps/lms/src/sample_usr_lms.c

@@ -0,0 +1,208 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void BufWriteTest(void *buf, int start, int end)
+{
+    for (int i = start; i <= end; i++) {
+        ((char *)buf)[i] = 'a';
+    }
+}
+
+static void BufReadTest(void *buf, int start, int end)
+{
+    char tmp;
+    for (int i = start; i <= end; i++) {
+        tmp = ((char *)buf)[i];
+    }
+}
+
+static void LmsMallocTest(void)
+{
+    printf("\n-------- LmsMallocTest Start --------\n");
+    char *buf = (char *)malloc(16);
+    printf("[LmsMallocTest] malloc addr:%p    size:%d\n", buf, 16);
+
+    printf("[LmsMallocTest] read overflow & underflow error should be triggered, read range[-1,16]\n");
+    BufReadTest(buf, -1, 16);
+    printf("[LmsMallocTest] write overflow error should be triggered, write range[0,16]\n");
+    BufWriteTest(buf, 0, 16);
+
+    free(buf);
+    printf("\n-------- LmsMallocTest End --------\n");
+}
+
+static void LmsReallocTest(void)
+{
+    printf("\n-------- LmsReallocTest Start --------\n");
+    char *buf = (char *)malloc(64);
+    printf("[LmsReallocTest] malloc addr:%p size:%d\n", buf, 64);
+    printf("[LmsReallocTest] read overflow & underflow error should be triggered, read range[-1,64]\n");
+    BufReadTest(buf, -1, 64);
+    buf = (char *)realloc(buf, 32);
+    printf("[LmsReallocTest] realloc addr:%p size:%d\n", buf, 32);
+    printf("[LmsReallocTest] read overflow & underflow error should be triggered, read range[-1,32]\n");
+    BufReadTest(buf, -1, 32);
+    free(buf);
+    printf("\n-------- LmsReallocTest End --------\n");
+}
+
+static void LmsCallocTest(void)
+{
+    printf("\n-------- LmsCallocTest Start --------\n");
+    char *buf = (char *)calloc(4, 4);
+    printf("[LmsCallocTest] calloc addr:%p size:%d\n", buf, 16);
+    printf("[LmsCallocTest] read overflow & underflow error should be triggered, read range[-1,16]\n");
+    BufReadTest(buf, -1, 16);
+    free(buf);
+    printf("\n-------- LmsCallocTest End --------\n");
+}
+
+static void LmsVallocTest(void)
+{
+    printf("\n-------- LmsVallocTest Start --------\n");
+    char *buf = (char *)valloc(4096);
+    printf("[LmsVallocTest] valloc addr:%p size:%d\n", buf, 4096);
+    printf("[LmsVallocTest] read overflow & underflow error should be triggered, read range[-1,4096]\n");
+    BufReadTest(buf, -1, 4096);
+    free(buf);
+    printf("\n-------- LmsVallocTest End --------\n");
+}
+
+static void LmsAlignedAllocTest(void)
+{
+    printf("\n-------- LmsAlignedAllocTest Start --------\n");
+    char *buf = (char *)aligned_alloc(64, 128);
+    printf("[LmsAlignedAllocTest] aligned_alloc boundsize:%d addr:%p size:%d\n", 64, buf, 128);
+    printf("[LmsAlignedAllocTest] read overflow & underflow error should be triggered, read range[-1,128]\n");
+    BufReadTest(buf, -1, 128);
+    free(buf);
+    printf("\n-------- LmsAlignedAllocTest End --------\n");
+}
+
+static void LmsMemsetTest(void)
+{
+    printf("\n-------- LmsMemsetTest Start --------\n");
+    char *buf = (char *)malloc(32);
+    printf("[LmsMemsetTest] malloc addr:%p size:%d\n", buf, 32);
+    printf("[LmsMemsetTest] memset overflow & underflow error should be triggered, memset size:%d\n", 33);
+    memset(buf, 0, 33);
+    free(buf);
+    printf("\n-------- LmsMemsetTest End --------\n");
+}
+
+static void LmsMemcpyTest(void)
+{
+    printf("\n-------- LmsMemcpyTest Start --------\n");
+    char *buf = (char *)malloc(20);
+    printf("[LmsMemcpyTest] malloc addr:%p size:%d\n", buf, 20);
+    char localBuf[32] = {0};
+    printf("[LmsMemcpyTest] memcpy overflow error should be triggered, memcpy size:%d\n", 21);
+    memcpy(buf, localBuf, 21);
+    free(buf);
+    printf("\n-------- LmsMemcpyTest End --------\n");
+}
+
+static void LmsMemmoveTest(void)
+{
+    printf("\n-------- LmsMemmoveTest Start --------\n");
+    char *buf = (char *)malloc(20);
+    printf("[LmsMemmoveTest] malloc addr:%p size:%d\n", buf, 20);
+    printf("[LmsMemmoveTest] memmove overflow error should be triggered, dest addr:%p src addr:%p size:%d\n", buf + 12,
+        buf, 10);
+    memmove(buf + 12, buf, 10);
+    free(buf);
+    printf("\n-------- LmsMemmoveTest End --------\n");
+}
+
+static void LmsStrcpyTest(void)
+{
+    printf("\n-------- LmsStrcpyTest Start --------\n");
+    char *buf = (char *)malloc(16);
+    printf("[LmsStrcpyTest] malloc addr:%p size:%d\n", buf, 16);
+    char *testStr = "bbbbbbbbbbbbbbbbb";
+    printf("[LmsStrcpyTest] strcpy overflow error should be triggered, src string buf size:%d\n", strlen(testStr) + 1);
+    strcpy(buf, testStr);
+    free(buf);
+    printf("\n-------- LmsStrcpyTest End --------\n");
+}
+
+static void LmsStrcatTest(void)
+{
+    printf("\n-------- LmsStrcatTest Start --------\n");
+    char *buf = (char *)malloc(16);
+    printf("[LmsStrcatTest] malloc addr:%p size:%d\n", buf, 16);
+    buf[0] = 'a';
+    buf[1] = 'b';
+    buf[2] = 0;
+    char *testStr = "cccccccccccccc";
+    printf("[LmsStrcatTest] strcat overflow error should be triggered, src string:%s dest string:%s"
+        "total buf size:%d\n",
+        testStr, buf, strlen(testStr) + strlen(buf) + 1);
+    strcat(buf, testStr);
+    free(buf);
+    printf("\n-------- LmsStrcatTest End --------\n");
+}
+
+static void LmsFreeTest(void)
+{
+    printf("\n-------- LmsFreeTest Start --------\n");
+    char *buf = (char *)malloc(16);
+    printf("[LmsFreeTest] malloc addr:%p size:%d\n", buf, 16);
+    printf("[LmsFreeTest] free addr:%p\n", buf, 16);
+    free(buf);
+    printf("[LmsFreeTest] Use after free error should be triggered, read addr:%p range[1,1]\n", buf);
+    BufReadTest(buf, 1, 1);
+    printf("[LmsFreeTest] double free error should be triggered, free addr:%p\n", buf);
+    free(buf);
+    printf("\n-------- LmsFreeTest End --------\n");
+}
+
+int main(int argc, char * const * argv)
+{
+    printf("\n############### Lms Test start ###############\n");
+    char *tmp = (char *)malloc(5000);
+    LmsMallocTest();
+    LmsReallocTest();
+    LmsCallocTest();
+    LmsVallocTest();
+    LmsAlignedAllocTest();
+    LmsMemsetTest();
+    LmsMemcpyTest();
+    LmsMemmoveTest();
+    LmsStrcpyTest();
+    LmsStrcatTest();
+    LmsFreeTest();
+    printf("\n############### Lms Test End ###############\n");
+}

apps/perf/BUILD.gn

@@ -0,0 +1,63 @@
+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+executable("perf") {
+  sources = [
+    "src/main.c",
+    "src/option.c",
+    "src/perf.c",
+    "src/perf_list.c",
+    "src/perf_record.c",
+    "src/perf_stat.c",
+  ]
+  include_dirs = [ "include" ]
+  defines = []
+
+  if (defined(LOSCFG_PERF_HW_PMU)) {
+    defines += [ "LOSCFG_PERF_HW_PMU" ]
+  }
+
+  if (defined(LOSCFG_PERF_TIMED_PMU)) {
+    defines += [ "LOSCFG_PERF_TIMED_PMU" ]
+  }
+
+  if (defined(LOSCFG_PERF_SW_PMU)) {
+    defines += [ "LOSCFG_PERF_SW_PMU" ]
+  }
+
+  if (defined(LOSCFG_FS_VFS)) {
+    defines += [ "LOSCFG_FS_VFS" ]
+  }
+
+  defines += [ "LOSCFG_PERF_BUFFER_SIZE=$LOSCFG_PERF_BUFFER_SIZE" ]
+
+  deps = [ "$LITEOSTHIRDPARTY/bounds_checking_function:libsec_static" ]
+}

apps/perf/Makefile

@@ -0,0 +1,62 @@
+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+include $(APPSTOPDIR)/config.mk
+
+APP_NAME := $(notdir $(shell pwd))
+
+SECUREC_DIR := $(LITEOSTHIRDPARTY)/bounds_checking_function
+
+LOCAL_SRCS = $(wildcard src/*.c)
+LOCAL_SRCS += $(wildcard $(SECUREC_DIR)/src/*.c)
+
+LOCAL_INCLUDE := \
+    -I include \
+    -I $(SECUREC_DIR)/include
+
+LOCAL_FLAGS += $(LOCAL_INCLUDE)
+
+ifeq ($(LOSCFG_PERF_HW_PMU), y)
+CFLAGS += -DLOSCFG_PERF_HW_PMU
+endif
+
+ifeq ($(LOSCFG_PERF_TIMED_PMU), y)
+CFLAGS += -DLOSCFG_PERF_TIMED_PMU
+endif
+
+ifeq ($(LOSCFG_PERF_SW_PMU), y)
+CFLAGS += -DLOSCFG_PERF_SW_PMU
+endif
+
+ifeq ($(LOSCFG_FS_VFS), y)
+CFLAGS += -DLOSCFG_FS_VFS
+endif
+
+CFLAGS += -DLOSCFG_PERF_BUFFER_SIZE=$(LOSCFG_PERF_BUFFER_SIZE)
+include $(APP)

apps/perf/include/option.h

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#ifndef _OPTION_H
+#define _OPTION_H
+
+#include "perf.h"
+
+#ifdef  __cplusplus
+#if  __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+#define CMD_MAX_PARAMS 10
+typedef int (*CALL_BACK)(const char *argv);
+
+enum OptionType {
+    OPTION_TYPE_UINT,
+    OPTION_TYPE_STRING,
+    OPTION_TYPE_CALLBACK,
+};
+
+typedef struct {
+    int type;
+    const char *name;
+    const char **str;
+    unsigned int *value;
+    CALL_BACK cb;
+} PerfOption;
+
+typedef struct {
+    const char *path;
+    char *params[CMD_MAX_PARAMS];
+} SubCmd;
+
+#define OPTION_END()          {.name = ""}
+#define OPTION_UINT(n, v)     {.type = OPTION_TYPE_UINT,     .name = (n), .value = (v)}
+#define OPTION_STRING(n, s)   {.type = OPTION_TYPE_STRING,   .name = (n), .str = (s)}
+#define OPTION_CALLBACK(n, c) {.type = OPTION_TYPE_CALLBACK, .name = (n), .cb = (c)}
+
+int ParseOptions(int argc, char **argv, PerfOption *opt, SubCmd *cmd);
+int ParseEvents(const char *argv, PerfEventConfig *eventsCfg, unsigned int *len);
+int ParseIds(const char *argv, int *arr, unsigned int *len);
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif
+#endif
+
+#endif /* _OPTION_H */

apps/perf/include/perf.h

@@ -0,0 +1,163 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#ifndef _PERF_H
+#define _PERF_H
+
+#include <stdlib.h>
+
+#ifdef  __cplusplus
+#if  __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+#define PERF_MAX_EVENT          7
+#define PERF_MAX_FILTER_TSKS    32
+
+#ifdef PERF_DEBUG
+#define printf_debug(fmt, ...) printf(fmt, ##__VA_ARGS__)
+#else
+#define printf_debug(fmt, ...)
+#endif
+
+/*
+ * Perf types
+ */
+enum PerfEventType {
+    PERF_EVENT_TYPE_HW,      /* boards common hw events */
+    PERF_EVENT_TYPE_TIMED,   /* hrtimer timed events */
+    PERF_EVENT_TYPE_SW,      /* software trace events */
+    PERF_EVENT_TYPE_RAW,     /* boards special hw events, see enum PmuEventType in corresponding arch headfile */
+
+    PERF_EVENT_TYPE_MAX
+};
+
+/*
+ * Common hardware pmu events
+ */
+enum PmuHwId {
+    PERF_COUNT_HW_CPU_CYCLES = 0,      /* cpu cycle event */
+    PERF_COUNT_HW_INSTRUCTIONS,        /* instruction event */
+    PERF_COUNT_HW_DCACHE_REFERENCES,   /* dcache access event */
+    PERF_COUNT_HW_DCACHE_MISSES,       /* dcache miss event */
+    PERF_COUNT_HW_ICACHE_REFERENCES,   /* icache access event */
+    PERF_COUNT_HW_ICACHE_MISSES,       /* icache miss event */
+    PERF_COUNT_HW_BRANCH_INSTRUCTIONS, /* software change of pc event */
+    PERF_COUNT_HW_BRANCH_MISSES,       /* branch miss event */
+
+    PERF_COUNT_HW_MAX,
+};
+
+/*
+ * Common hrtimer timed events
+ */
+enum PmuTimedId {
+    PERF_COUNT_CPU_CLOCK = 0,      /* hrtimer timed event */
+};
+
+/*
+ * Common software pmu events
+ */
+enum PmuSwId {
+    PERF_COUNT_SW_TASK_SWITCH = 1, /* task switch event */
+    PERF_COUNT_SW_IRQ_RESPONSE,    /* irq response event */
+    PERF_COUNT_SW_MEM_ALLOC,       /* memory alloc event */
+    PERF_COUNT_SW_MUX_PEND,        /* mutex pend event */
+
+    PERF_COUNT_SW_MAX,
+};
+
+/*
+ * perf sample data types
+ * Config it through PerfConfigAttr->sampleType.
+ */
+enum PerfSampleType {
+    PERF_RECORD_CPU       = 1U << 0, /* record current cpuid */
+    PERF_RECORD_TID       = 1U << 1, /* record current task id */
+    PERF_RECORD_TYPE      = 1U << 2, /* record event type */
+    PERF_RECORD_PERIOD    = 1U << 3, /* record event period */
+    PERF_RECORD_TIMESTAMP = 1U << 4, /* record timestamp */
+    PERF_RECORD_IP        = 1U << 5, /* record instruction pointer */
+    PERF_RECORD_CALLCHAIN = 1U << 6, /* record backtrace */
+    PERF_RECORD_PID       = 1U << 7, /* record current process id */
+};
+
+/*
+ * perf configuration sub event information
+ *
+ * This structure is used to config specific events attributes.
+ */
+typedef struct {
+    unsigned int type;              /* enum PerfEventType */
+    struct {
+        unsigned int eventId;       /* the specific event corresponds to the PerfEventType */
+        unsigned int period;        /* event period, for every "period"th occurrence of the event a
+                                        sample will be recorded */
+    } events[PERF_MAX_EVENT];       /* perf event list */
+    unsigned int eventsNr;          /* total perf event number */
+    size_t predivided;              /* whether to prescaler (once every 64 counts),
+                                        which only take effect on cpu cycle hardware event */
+} PerfEventConfig;
+
+/*
+ * perf configuration main information
+ *
+ * This structure is used to set perf sampling attributes, including events, tasks and other information.
+ */
+typedef struct {
+    PerfEventConfig         eventsCfg;                      /* perf event config */
+    unsigned int            taskIds[PERF_MAX_FILTER_TSKS];  /* perf task filter list (allowlist) */
+    unsigned int            taskIdsNr;                      /* task numbers of task filter allowlist,
+                                                                 if set 0 perf will sample all tasks */
+    unsigned int            processIds[PERF_MAX_FILTER_TSKS];  /* perf process filter list (allowlist) */
+    unsigned int            processIdsNr;                      /* process numbers of process filter allowlist,
+                                                                 if set 0 perf will sample all processes */
+    unsigned int            sampleType;                     /* type of data to sample defined in PerfSampleType */
+    size_t                  needSample;                     /* whether to sample data */
+} PerfConfigAttr;
+
+void PerfUsage(void);
+void PerfDumpAttr(PerfConfigAttr *attr);
+int PerfConfig(int fd, PerfConfigAttr *attr);
+void PerfStart(int fd, size_t sectionId);
+void PerfStop(int fd);
+ssize_t PerfRead(int fd, char *buf, size_t size);
+void PerfPrintBuffer(const char *buf, ssize_t num);
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif
+#endif
+
+#endif /* _PERF_H */

apps/perf/include/perf_list.h

@@ -29,28 +29,29 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-/**
- * @defgroup los_pmm physical memory management
- * @ingroup kernel
- */
 
-#ifndef __LOS_PMM_H__
-#define __LOS_PMM_H__
+#ifndef _PERF_LIST_H
+#define _PERF_LIST_H
 
-#include "los_typedef.h"
-
-#ifdef __cplusplus
-#if __cplusplus
+#ifdef  __cplusplus
+#if  __cplusplus
 extern "C" {
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-BOOL OsIsPaddrValid(paddr_t pa);
+typedef struct {
+    const char *name;
+    int event;
+    int type;
+} PerfEvent;
+
+extern const PerfEvent g_events[];
+void PerfList(void);
 
 #ifdef __cplusplus
 #if __cplusplus
 }
-#endif /* __cplusplus */
-#endif /* __cplusplus */
+#endif
+#endif
 
-#endif /* __LOS_PMM_H__ */
+#endif /* _PERF_LIST_H */

apps/perf/include/perf_record.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PERF_RECORD_H
+#define _PERF_RECORD_H
+
+#ifdef  __cplusplus
+#if  __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+void PerfRecord(int fd, int argc, char **argv);
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif
+#endif
+
+#endif /* _PERF_RECORD_H */

apps/perf/include/perf_stat.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PERF_STAT_H
+#define _PERF_STAT_H
+
+#ifdef  __cplusplus
+#if  __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+void PerfStat(int fd, int argc, char **argv);
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif
+#endif
+
+#endif /* _PERF_STAT_H */

apps/perf/src/main.c

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include "perf.h"
+#include "perf_list.h"
+#include "perf_stat.h"
+#include "perf_record.h"
+
+int main(int argc, char **argv)
+{
+#define TWO_ARGS    2
+#define THREE_ARGS  3
+    int fd = open("/dev/perf", O_RDWR);
+    if (fd == -1) {
+        printf("Perf open failed.\n");
+        exit(EXIT_FAILURE);
+    }
+
+    if (argc == 1) {
+        PerfUsage();
+    } else if ((argc == TWO_ARGS) && strcmp(argv[1], "start") == 0) {
+        PerfStart(fd, 0);
+    } else if ((argc == THREE_ARGS) && strcmp(argv[1], "start") == 0) {
+        size_t id = strtoul(argv[THREE_ARGS - 1], NULL, 0);
+        PerfStart(fd, id);
+    } else if ((argc == TWO_ARGS) && strcmp(argv[1], "stop") == 0) {
+        PerfStop(fd);
+    } else if ((argc == THREE_ARGS) && strcmp(argv[1], "read") == 0) {
+        size_t size = strtoul(argv[THREE_ARGS - 1], NULL, 0);
+        char *buf = (char *)malloc(size);
+        int len = PerfRead(fd, buf, size);
+        PerfPrintBuffer(buf, len);
+        free(buf);
+    } else if ((argc == TWO_ARGS) && strcmp(argv[1], "list") == 0) {
+        PerfList();
+    } else if ((argc >= THREE_ARGS) && strcmp(argv[1], "stat") == 0) {
+        PerfStat(fd, argc, argv);
+    } else if ((argc >= THREE_ARGS) && strcmp(argv[1], "record") == 0) {
+        PerfRecord(fd, argc, argv);
+    } else {
+        printf("Unsupported perf command.\n");
+        PerfUsage();
+    }
+
+    close(fd);
+    return 0;
+}

apps/perf/src/option.c

@@ -0,0 +1,182 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "option.h"
+#include "perf_list.h"
+
+static int ParseOption(char **argv, int *index, PerfOption *opts)
+{
+    int ret = 0;
+    const char *str = NULL;
+
+    while ((opts->name != NULL) && (*opts->name != 0)) {
+        if (strcmp(argv[*index], opts->name) == 0) {
+            switch (opts->type) {
+                case OPTION_TYPE_UINT:
+                    *opts->value = strtoul(argv[++(*index)], NULL, 0);
+                    break;
+                case OPTION_TYPE_STRING:
+                    *opts->str = argv[++(*index)];
+                    break;
+                case OPTION_TYPE_CALLBACK:
+                    str = argv[++(*index)];
+                    if ((*opts->cb)(str) != 0) {
+                        printf("parse error\n");
+                        ret = -1;
+                    }
+                    break;
+                default:
+                    printf("invalid option\n");
+                    ret = -1;
+                    break;
+            }
+            return ret;
+        }
+        opts++;
+    }
+
+    return -1;
+}
+
+int ParseOptions(int argc, char **argv, PerfOption *opts, SubCmd *cmd)
+{
+    int i;
+    int index = 0;
+
+    while ((index < argc) && (argv[index] != NULL) && (*argv[index] == '-')) {
+        if (ParseOption(argv, &index, opts) != 0) {
+            return -1;
+        }
+        index++;
+    }
+
+    if ((index < argc) && (argv[index] != NULL)) {
+        cmd->path = argv[index];
+        cmd->params[0] = argv[index];
+        index++;
+    } else {
+        printf("no subcmd to execute\n");
+        return -1;
+    }
+
+    for (i = 1; (index < argc) && (i < CMD_MAX_PARAMS); index++, i++) {
+        cmd->params[i] = argv[index];
+    }
+    printf_debug("subcmd = %s\n", cmd->path);
+    for (int j = 0; j < i; j++) {
+        printf_debug("paras[%d]:%s\n", j, cmd->params[j]);
+    }
+    return 0;
+}
+
+int ParseIds(const char *argv, int *arr, unsigned int *len)
+{
+    int res, ret;
+    unsigned int index  = 0;
+    char *sp = NULL;
+    char *this = NULL;
+    char *list = strdup(argv);
+
+    if (list == NULL) {
+        printf("no memory for ParseIds\n");
+        return -1;
+    }
+
+    sp = strtok_r(list, ",", &this);
+    while (sp) {
+        res = strtoul(sp, NULL, 0);
+        if (res < 0) {
+            ret = -1;
+            goto EXIT;
+        }
+        arr[index++] = res;
+        sp = strtok_r(NULL, ",", &this);
+    }
+    *len = index;
+    ret = 0;
+EXIT:
+    free(list);
+    return ret;
+}
+
+static inline const PerfEvent *StrToEvent(const char *str)
+{
+    const PerfEvent *evt = &g_events[0];
+
+    for (; evt->event != -1; evt++) {
+        if (strcmp(str, evt->name) == 0) {
+            return evt;
+        }
+    }
+    return NULL;
+}
+
+int ParseEvents(const char *argv, PerfEventConfig *eventsCfg, unsigned int *len)
+{
+    int ret;
+    unsigned int index  = 0;
+    const PerfEvent *event = NULL;
+    char *sp = NULL;
+    char *this = NULL;
+    char *list = strdup(argv);
+
+    if (list == NULL) {
+        printf("no memory for ParseEvents\n");
+        return -1;
+    }
+
+    sp = strtok_r(list, ",", &this);
+    while (sp) {
+        event = StrToEvent(sp);
+        if (event == NULL) {
+            ret = -1;
+            goto EXIT;
+        }
+
+        if (index == 0) {
+            eventsCfg->type = event->type;
+        } else if (eventsCfg->type != event->type) {
+            printf("events type must be same\n");
+            ret = -1;
+            goto EXIT;
+        }
+        eventsCfg->events[index].eventId = event->event;
+        sp = strtok_r(NULL, ",", &this);
+        index++;
+    }
+    *len = index;
+    ret = 0;
+EXIT:
+    free(list);
+    return ret;
+}

apps/perf/src/perf.c

@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include "perf.h"
+
+#define PERF_IOC_MAGIC     'T'
+#define PERF_START         _IO(PERF_IOC_MAGIC, 1)
+#define PERF_STOP          _IO(PERF_IOC_MAGIC, 2)
+
+void PerfUsage(void)
+{
+    printf("\nUsage: ./perf start [id]. Start perf.\n");
+    printf("\nUsage: ./perf stop. Stop perf.\n");
+    printf("\nUsage: ./perf read <nBytes>. Read nBytes raw data from perf buffer and print out.\n");
+    printf("\nUsage: ./perf list. List events to be used in -e.\n");
+    printf("\nUsage: ./perf stat/record [option] <command>. \n"
+                    "-e, event selector. use './perf list' to list available events.\n"
+                    "-p, event period.\n"
+                    "-o, perf data output filename.\n"
+                    "-t, taskId filter(allowlist), if not set perf will sample all tasks.\n"
+                    "-s, type of data to sample defined in PerfSampleType los_perf.h.\n"
+                    "-P, processId filter(allowlist), if not set perf will sample all processes.\n"
+                    "-d, whether to prescaler (once every 64 counts),"
+                    "which only take effect on cpu cycle hardware event.\n"
+    );
+}
+
+static void PerfSetPeriod(PerfConfigAttr *attr)
+{
+    int i;
+    for (i = 1; i < attr->eventsCfg.eventsNr; i++) {
+        attr->eventsCfg.events[i].period = attr->eventsCfg.events[0].period;
+    }
+}
+
+void PerfPrintBuffer(const char *buf, ssize_t num)
+{
+#define BYTES_PER_LINE  4
+    ssize_t i;
+    for (i = 0; i < num; i++) {
+        printf(" %02x", (unsigned char)buf[i]);
+        if (((i + 1) % BYTES_PER_LINE) == 0) {
+            printf("\n");
+        }
+    }
+    printf("\n");
+}
+
+void PerfDumpAttr(PerfConfigAttr *attr)
+{
+    int i;
+    printf_debug("attr->type: %d\n", attr->eventsCfg.type);
+    for (i = 0; i < attr->eventsCfg.eventsNr; i++) {
+        printf_debug("attr->events[%d]: %d, 0x%x\n", i, attr->eventsCfg.events[i].eventId,
+            attr->eventsCfg.events[i].period);
+    }
+    printf_debug("attr->predivided: %d\n", attr->eventsCfg.predivided);
+    printf_debug("attr->sampleType: 0x%x\n", attr->sampleType);
+
+    for (i = 0; i < attr->taskIdsNr; i++) {
+        printf_debug("attr->taskIds[%d]: %d\n", i, attr->taskIds[i]);
+    }
+
+    for (i = 0; i < attr->processIdsNr; i++) {
+        printf_debug("attr->processIds[%d]: %d\n", i, attr->processIds[i]);
+    }
+
+    printf_debug("attr->needSample: %d\n", attr->needSample);
+}
+
+
+void PerfStart(int fd, size_t sectionId)
+{
+    (void)ioctl(fd, PERF_START, sectionId);
+}
+
+void PerfStop(int fd)
+{
+    (void)ioctl(fd, PERF_STOP, NULL);
+}
+
+int PerfConfig(int fd, PerfConfigAttr *attr)
+{
+    if (attr == NULL) {
+        return -1;
+    }
+    PerfSetPeriod(attr);
+    PerfDumpAttr(attr);
+    return write(fd, attr, sizeof(PerfConfigAttr));
+}
+
+ssize_t PerfRead(int fd, char *buf, size_t size)
+{
+    ssize_t len;
+    if (buf == NULL) {
+        printf("Read buffer is null.\n");
+        return 0;
+    }
+
+    len = read(fd, buf, size);
+    return len;
+}

apps/perf/src/perf_list.c

@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include "perf.h"
+#include "perf_list.h"
+
+static const char *g_eventTypeStr[] = {
+    "[Hardware event]",
+    "[Timed event]",
+    "[Software event]",
+};
+
+const PerfEvent g_events[] = {
+#ifdef LOSCFG_PERF_HW_PMU
+    {
+        .name = "cycles",
+        .event = PERF_COUNT_HW_CPU_CYCLES,
+        .type = PERF_EVENT_TYPE_HW,
+    },
+    {
+        .name = "instruction",
+        .event = PERF_COUNT_HW_INSTRUCTIONS,
+        .type = PERF_EVENT_TYPE_HW,
+    },
+    {
+        .name = "dcache",
+        .event = PERF_COUNT_HW_DCACHE_REFERENCES,
+        .type = PERF_EVENT_TYPE_HW,
+    },
+    {
+        .name = "dcache-miss",
+        .event = PERF_COUNT_HW_DCACHE_MISSES,
+        .type = PERF_EVENT_TYPE_HW,
+    },
+    {
+        .name = "icache",
+        .event = PERF_COUNT_HW_ICACHE_REFERENCES,
+        .type = PERF_EVENT_TYPE_HW,
+    },
+    {
+        .name = "icache-miss",
+        .event = PERF_COUNT_HW_ICACHE_MISSES,
+        .type = PERF_EVENT_TYPE_HW,
+    },
+    {
+        .name = "branch",
+        .event = PERF_COUNT_HW_BRANCH_INSTRUCTIONS,
+        .type = PERF_EVENT_TYPE_HW,
+    },
+    {
+        .name = "branch-miss",
+        .event = PERF_COUNT_HW_BRANCH_MISSES,
+        .type = PERF_EVENT_TYPE_HW,
+    },
+#endif
+#ifdef LOSCFG_PERF_TIMED_PMU
+    {
+        .name = "clock",
+        .event = PERF_COUNT_CPU_CLOCK,
+        .type = PERF_EVENT_TYPE_TIMED,
+    },
+#endif
+#ifdef LOSCFG_PERF_SW_PMU
+    {
+        .name = "task-switch",
+        .event = PERF_COUNT_SW_TASK_SWITCH,
+        .type = PERF_EVENT_TYPE_SW,
+    },
+    {
+        .name = "irq-in",
+        .event = PERF_COUNT_SW_IRQ_RESPONSE,
+        .type = PERF_EVENT_TYPE_SW,
+    },
+    {
+        .name = "mem-alloc",
+        .event = PERF_COUNT_SW_MEM_ALLOC,
+        .type = PERF_EVENT_TYPE_SW,
+    },
+    {
+        .name = "mux-pend",
+        .event = PERF_COUNT_SW_MUX_PEND,
+        .type = PERF_EVENT_TYPE_SW,
+    },
+#endif
+    {
+        .name = "",
+        .event = -1,
+        .type = PERF_EVENT_TYPE_MAX,
+    }
+};
+
+void PerfList(void)
+{
+    const PerfEvent *evt = &g_events[0];
+    printf("\n");
+    for (; evt->event != -1; evt++) {
+        printf("\t %-25s%30s\n", evt->name, g_eventTypeStr[evt->type]);
+    }
+    printf("\n");
+}

apps/perf/src/perf_record.c

@@ -0,0 +1,204 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <unistd.h>
+#include <sys/wait.h>
+#include <securec.h>
+
+#ifdef LOSCFG_FS_VFS
+#include <fcntl.h>
+#include <errno.h>
+#endif
+
+#include "perf.h"
+#include "option.h"
+#include "perf_record.h"
+
+#define PERF_FILE_MODE 0644
+static PerfConfigAttr g_recordAttr;
+static const char *g_savePath = "/storage/data/perf.data";
+
+static inline int GetEvents(const char *argv)
+{
+    return ParseEvents(argv, &g_recordAttr.eventsCfg, &g_recordAttr.eventsCfg.eventsNr);
+}
+
+static inline int GetTids(const char *argv)
+{
+    return ParseIds(argv, (int *)g_recordAttr.taskIds, &g_recordAttr.taskIdsNr);
+}
+
+static inline int GetPids(const char *argv)
+{
+    return ParseIds(argv, (int *)g_recordAttr.processIds, &g_recordAttr.processIdsNr);
+}
+
+static PerfOption g_recordOpts[] = {
+    OPTION_CALLBACK("-e", GetEvents),
+    OPTION_CALLBACK("-t", GetTids),
+    OPTION_CALLBACK("-P", GetPids),
+    OPTION_STRING("-o", &g_savePath),
+    OPTION_UINT("-p", &g_recordAttr.eventsCfg.events[0].period),
+    OPTION_UINT("-s", &g_recordAttr.sampleType),
+    OPTION_UINT("-d", &g_recordAttr.eventsCfg.predivided),
+};
+
+static int PerfRecordAttrInit(void)
+{
+    PerfConfigAttr attr = {
+        .eventsCfg = {
+#ifdef LOSCFG_PERF_HW_PMU
+            .type = PERF_EVENT_TYPE_HW,
+            .events = {
+                [0] = {PERF_COUNT_HW_CPU_CYCLES, 0xFFFF},
+            },
+#elif defined LOSCFG_PERF_TIMED_PMU
+            .type = PERF_EVENT_TYPE_TIMED,
+            .events = {
+                [0] = {PERF_COUNT_CPU_CLOCK, 100},
+            },
+#elif defined LOSCFG_PERF_SW_PMU
+            .type = PERF_EVENT_TYPE_SW,
+            .events = {
+                [0] = {PERF_COUNT_SW_TASK_SWITCH, 1},
+            },
+#endif
+            .eventsNr = 1, /* 1 event */
+            .predivided = 0,
+        },
+        .taskIds = {0},
+        .taskIdsNr = 0,
+        .processIds = {0},
+        .processIdsNr = 0,
+        .needSample = 1,
+        .sampleType = PERF_RECORD_IP | PERF_RECORD_CALLCHAIN,
+    };
+
+    return memcpy_s(&g_recordAttr, sizeof(PerfConfigAttr), &attr, sizeof(PerfConfigAttr)) != EOK ? -1 : 0;
+}
+
+ssize_t PerfWriteFile(const char *filePath, const char *buf, ssize_t bufSize)
+{
+#ifdef LOSCFG_FS_VFS
+    int fd = -1;
+    ssize_t totalToWrite = bufSize;
+    ssize_t totalWrite = 0;
+
+    if (filePath == NULL || buf == NULL || bufSize == 0) {
+        printf("filePath: %p, buf: %p, bufSize: %u!\n", filePath, buf, bufSize);
+        return -1;
+    }
+
+    fd = open(filePath, O_CREAT | O_RDWR | O_TRUNC, PERF_FILE_MODE);
+    if (fd < 0) {
+        printf("create file [%s] failed, fd: %d, %s!\n", filePath, fd, strerror(errno));
+        return -1;
+    }
+    while (totalToWrite > 0) {
+        ssize_t writeThisTime = write(fd, buf, totalToWrite);
+        if (writeThisTime < 0) {
+            printf("failed to write file [%s], %s!\n", filePath, strerror(errno));
+            (void)close(fd);
+            return -1;
+        }
+        buf += writeThisTime;
+        totalToWrite -= writeThisTime;
+        totalWrite += writeThisTime;
+    }
+    (void)fsync(fd);
+    (void)close(fd);
+
+    return (totalWrite == bufSize) ? 0 : -1;
+#else
+    (void)filePath;
+    PerfPrintBuffer(buf, bufSize);
+    return 0;
+#endif
+}
+
+void PerfRecord(int fd, int argc, char **argv)
+{
+    int ret;
+    int child;
+    char *buf;
+    ssize_t len;
+    SubCmd cmd = {0};
+
+    if (argc < 3) { /* perf record argc is at least 3 */
+        return;
+    }
+
+    ret = PerfRecordAttrInit();
+    if (ret != 0) {
+        printf("perf record attr init failed\n");
+        return;
+    }
+
+    ret = ParseOptions(argc - 2, &argv[2], g_recordOpts, &cmd); /* parse option and cmd begin at index 2 */
+    if (ret != 0) {
+        printf("parse error\n");
+        return;
+    }
+
+    ret = PerfConfig(fd, &g_recordAttr);
+    if (ret != 0) {
+        printf("perf config failed\n");
+        return;
+    }
+
+    PerfStart(fd, 0);
+    child = fork();
+    if (child < 0) {
+        printf("fork error\n");
+        PerfStop(fd);
+        return;
+    } else if (child == 0) {
+        (void)execve(cmd.path, cmd.params, NULL);
+        exit(0);
+    }
+
+    waitpid(child, 0, 0);
+    PerfStop(fd);
+
+    buf = (char *)malloc(LOSCFG_PERF_BUFFER_SIZE);
+    if (buf == NULL) {
+        printf("no memory for read perf 0x%x\n", LOSCFG_PERF_BUFFER_SIZE);
+        return;
+    }
+    len = PerfRead(fd, buf, LOSCFG_PERF_BUFFER_SIZE);
+    ret = PerfWriteFile(g_savePath, buf, len);
+    if (ret == 0) {
+        printf("save perf data success at %s\n", g_savePath);
+    } else {
+        printf("save perf data failed at %s\n", g_savePath);
+    }
+    free(buf);
+}

apps/perf/src/perf_stat.c

@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <unistd.h>
+#include <securec.h>
+#include <sys/wait.h>
+#include "perf.h"
+#include "option.h"
+#include "perf_stat.h"
+
+static PerfConfigAttr g_statAttr;
+
+static inline int GetEvents(const char *argv)
+{
+    return ParseEvents(argv, &g_statAttr.eventsCfg, &g_statAttr.eventsCfg.eventsNr);
+}
+
+static inline int GetTids(const char *argv)
+{
+    return ParseIds(argv, (int *)g_statAttr.taskIds, &g_statAttr.taskIdsNr);
+}
+
+static inline int GetPids(const char *argv)
+{
+    return ParseIds(argv, (int *)g_statAttr.processIds, &g_statAttr.processIdsNr);
+}
+
+static PerfOption g_statOpts[] = {
+    OPTION_CALLBACK("-e", GetEvents),
+    OPTION_CALLBACK("-t", GetTids),
+    OPTION_CALLBACK("-P", GetPids),
+    OPTION_UINT("-p", &g_statAttr.eventsCfg.events[0].period),
+    OPTION_UINT("-s", &g_statAttr.sampleType),
+    OPTION_UINT("-d", &g_statAttr.eventsCfg.predivided),
+};
+
+static int PerfStatAttrInit(void)
+{
+    PerfConfigAttr attr = {
+        .eventsCfg = {
+#ifdef LOSCFG_PERF_HW_PMU
+            .type = PERF_EVENT_TYPE_HW,
+            .events = {
+                [0] = {PERF_COUNT_HW_CPU_CYCLES, 0xFFFF},
+                [1] = {PERF_COUNT_HW_INSTRUCTIONS, 0xFFFFFF00},
+                [2] = {PERF_COUNT_HW_ICACHE_REFERENCES, 0xFFFF},
+                [3] = {PERF_COUNT_HW_DCACHE_REFERENCES, 0xFFFF},
+            },
+            .eventsNr = 4, /* 4 events */
+#elif defined LOSCFG_PERF_TIMED_PMU
+            .type = PERF_EVENT_TYPE_TIMED,
+            .events = {
+                [0] = {PERF_COUNT_CPU_CLOCK, 100},
+            },
+            .eventsNr = 1, /* 1 event */
+#elif defined LOSCFG_PERF_SW_PMU
+            .type = PERF_EVENT_TYPE_SW,
+            .events = {
+                [0] = {PERF_COUNT_SW_TASK_SWITCH, 1},
+                [1] = {PERF_COUNT_SW_IRQ_RESPONSE, 1},
+                [2] = {PERF_COUNT_SW_MEM_ALLOC, 1},
+                [3] = {PERF_COUNT_SW_MUX_PEND, 1},
+            },
+            .eventsNr = 4, /* 4 events */
+#endif
+            .predivided = 0,
+        },
+        .taskIds = {0},
+        .taskIdsNr = 0,
+        .processIds = {0},
+        .processIdsNr = 0,
+        .needSample = 0,
+        .sampleType = 0,
+    };
+
+    return memcpy_s(&g_statAttr, sizeof(PerfConfigAttr), &attr, sizeof(PerfConfigAttr)) != EOK ? -1 : 0;
+}
+
+void PerfStat(int fd, int argc, char **argv)
+{
+    int ret;
+    int child;
+    SubCmd cmd = {0};
+
+    if (argc < 3) { /* perf stat argc is at least 3 */
+        return;
+    }
+
+    ret = PerfStatAttrInit();
+    if (ret != 0) {
+        printf("perf stat attr init failed\n");
+        return;
+    }
+
+    ret = ParseOptions(argc - 2, &argv[2], g_statOpts, &cmd); /* parse option and cmd begin at index 2 */
+    if (ret != 0) {
+        printf("parse error\n");
+        return;
+    }
+
+    ret = PerfConfig(fd, &g_statAttr);
+    if (ret != 0) {
+        printf("perf config failed\n");
+        return;
+    }
+
+    PerfStart(fd, 0);
+    child = fork();
+    if (child < 0) {
+        printf("fork error\n");
+        goto EXIT;
+    } else if (child == 0) {
+        (void)execve(cmd.path, cmd.params, NULL);
+        exit(0);
+    }
+
+    (void)waitpid(child, 0, 0);
+EXIT:
+    PerfStop(fd);
+}
+

apps/shell/builtin/cd.c

@@ -29,9 +29,7 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef  _GNU_SOURCE
 #define _GNU_SOURCE
-#endif
 
 #include "unistd.h"
 #include "shcmd.h"
@@ -48,7 +46,7 @@ int Chdir(const char *tgtDir)
 
     ret = chdir(tgtDir);
     if (ret == 0) {
-        ret = OsShellSetWorkingDirtectory(tgtDir, strlen(tgtDir) + 1); /* 1: the length of '\0' */        
+        ret = OsShellSetWorkingDirectory(tgtDir, strlen(tgtDir) + 1); /* 1: the length of '\0' */
     }
 
     return ret;

apps/shell/include/shcmd.h

@@ -53,7 +53,7 @@ typedef struct {
 } CmdKeyLink;
 
 #define NEED_NEW_LINE(timesPrint, lineCap) ((timesPrint) % (lineCap) == 0)
-#define SCREEN_IS_FULL(timesPrint, lineCap) ((timesPrint) >= ((lineCap) * DEFAULT_SCREEN_HEIGNT))
+#define SCREEN_IS_FULL(timesPrint, lineCap) ((timesPrint) >= ((lineCap) * DEFAULT_SCREEN_HEIGHT))
 
 extern unsigned int OsCmdExec(CmdParsed *cmdParsed, char *cmdStr);
 extern unsigned int OsCmdKeyShift(const char *cmdKey, char *cmdOut, unsigned int size);
@@ -62,7 +62,7 @@ extern void OsShellCmdPush(const char *string, CmdKeyLink *cmdKeyLink);
 extern void OsShellHistoryShow(unsigned int value, ShellCB *shellCB);
 extern unsigned int OsShellKeyInit(ShellCB *shellCB);
 extern void OsShellKeyDeInit(CmdKeyLink *cmdKeyLink);
-extern int OsShellSetWorkingDirtectory(const char *dir, size_t len);
+extern int OsShellSetWorkingDirectory(const char *dir, size_t len);
 
 #ifdef __cplusplus
 #if __cplusplus

apps/shell/include/shell.h

@@ -54,7 +54,7 @@ extern "C" {
 #define CMD_HISTORY_LEN                 10
 #define CMD_MAX_PATH                    256
 #define DEFAULT_SCREEN_WIDTH            80
-#define DEFAULT_SCREEN_HEIGNT           24
+#define DEFAULT_SCREEN_HEIGHT           24
 
 #define SWITCH_QUOTES_STATUS(qu) do {   \
     if ((qu) == TRUE) {                 \

apps/shell/include/shell_pri.h

@@ -32,10 +32,6 @@
 #ifndef _SHELL_PRI_H
 #define _SHELL_PRI_H
 
-#include "sys/types.h"
-#include "bits/alltypes.h"
-#include "shcmd.h"
-
 #ifdef __cplusplus
 #if __cplusplus
 extern "C" {

apps/shell/include/sherr.h

@@ -32,9 +32,6 @@
 #ifndef _SHERR_H
 #define _SHERR_H
 
-#include "sys/types.h"
-#include "bits/alltypes.h"
-
 #ifdef __cplusplus
 #if __cplusplus
 extern "C" {

apps/shell/include/shmsg.h

@@ -43,8 +43,13 @@ extern "C" {
 #define SHELL_ENTRY_STACKSIZE   0x1000
 #define SHELL_TASK_STACKSIZE    0x3000
 
-#define SHELL_EXEC_COMMAND          "exec "
-#define SHELL_EXEC_COMMAND_BYTES    5
+#define SHELL_EXEC_COMMAND          "exec"
+#define SHELL_EXEC_COMMAND_BYTES    4
+#define CMD_EXEC_COMMAND            SHELL_EXEC_COMMAND" "
+#define CMD_EXEC_COMMAND_BYTES      (SHELL_EXEC_COMMAND_BYTES + 1)
+#define CMD_EXIT_COMMAND            "exit"
+#define CMD_EXIT_COMMAND_BYTES      4
+#define CMD_EXIT_CODE_BASE_DEC      10
 
 #define CONSOLE_IOC_MAGIC   'c'
 #define CONSOLE_CONTROL_REG_USERTASK _IO(CONSOLE_IOC_MAGIC, 7)
@@ -54,9 +59,10 @@ extern "C" {
 #define COLOR_L_RED    "\e[1;31m"
 #define SHELL_PROMPT   COLOR_L_RED"OHOS # "COLOR_NONE
 
-typedef void (*OutputFunc)(const char *fmt, ...);
+typedef void (* OutputFunc)(const char *fmt, ...);
 extern int ShellTaskInit(ShellCB *shellCB);
 extern int ShellEntryInit(ShellCB *shellCB);
+extern void ChildExec(const char *cmdName, char *const paramArray[]);
 extern void ShellCmdLineParse(char c, OutputFunc outputFunc, ShellCB *shellCB);
 extern int ShellNotify(ShellCB *shellCB);
 

apps/shell/include/show.h

@@ -42,7 +42,7 @@ extern "C" {
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-extern char *OsShellGetWorkingDirtectory(void);
+extern char *OsShellGetWorkingDirectory(void);
 extern unsigned int OsShellInit(void);
 extern int OsShellDeinit(ShellCB *shellCB);
 extern ShellCB *OsGetShellCb(void);

apps/shell/src/main.c

@@ -29,6 +29,8 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#define _GNU_SOURCE
+
 #include "show.h"
 #include "shmsg.h"
 #include "shcmd.h"
@@ -95,6 +97,9 @@ static int DoShellExec(char **argv)
     int ret = SH_NOK;
     char *cmdLine = NULL;
 
+    if (strncmp(argv[0], SHELL_EXEC_COMMAND, SHELL_EXEC_COMMAND_BYTES) == 0) {
+        ChildExec(argv[1], argv + 1);
+    }
     for (i = 0; argv[i]; i++) {
         len += strlen(argv[i]);
     }
@@ -105,12 +110,12 @@ static int DoShellExec(char **argv)
     }
     memset_s(cmdLine, len, 0, len);
 
-    for(j = 0; j < i; j++) {
+    for (j = 0; j < i; j++) {
         strcat_s(cmdLine, len,  argv[j]);
         strcat_s(cmdLine, len, " ");
     }
 
-    cmdLine[len - 2] = '\0';
+    cmdLine[len - 2] = '\0'; /* 2, (len - 2) is the end of cmdline buf */
     ret = syscall(__NR_shellexec, argv[0], cmdLine);
     free(cmdLine);
     return ret;
@@ -121,7 +126,7 @@ int main(int argc, char **argv)
     int ret = SH_NOK;
     ShellCB *shellCB = NULL;
 
-    if (!strcmp(argv[0], "shell") && argv[1]) {
+    if (argc > 1) {
         ret = DoShellExec(argv + 1);
         return ret;
     }

apps/shell/src/shcmd.c

@@ -91,12 +91,12 @@ static int OsStrSeparateTabStrGet(const char **tabStr, CmdParsed *parsed, unsign
     return SH_OK;
 }
 
-char *OsShellGetWorkingDirtectory()
+char *OsShellGetWorkingDirectory(void)
 {
     return OsGetShellCb()->shellWorkingDirectory;
 }
 
-int OsShellSetWorkingDirtectory(const char *dir, size_t len)
+int OsShellSetWorkingDirectory(const char *dir, size_t len)
 {
     if (dir == NULL) {
         return SH_NOK;
@@ -115,7 +115,7 @@ static int OsStrSeparate(const char *tabStr, char *strPath, char *nameLooking, u
     char *strEnd = NULL;
     char *cutPos = NULL;
     CmdParsed parsed = {0};
-    char *shellWorkingDirectory = OsShellGetWorkingDirtectory();
+    char *shellWorkingDirectory = OsShellGetWorkingDirectory();
     int ret;
 
     ret = OsStrSeparateTabStrGet(&tabStr, &parsed, tabStrLen);
@@ -223,7 +223,7 @@ static int OsPrintMatchList(unsigned int count, const char *strPath, const char
         return (int)SH_ERROR;
     }
 
-    if (count > (lineCap * DEFAULT_SCREEN_HEIGNT)) {
+    if (count > (lineCap * DEFAULT_SCREEN_HEIGHT)) {
         ret = OsSurePrintAll(count);
         if (ret != 1) {
             return ret;
@@ -375,10 +375,10 @@ static int OsTabMatchFile(char *cmdKey, unsigned int *len)
 }
 
 /*
- * Description: Pass in the string and clear useless space ,which inlcude:
+ * Description: Pass in the string and clear useless space ,which include:
  *                1) The overmatch space which is not be marked by Quote's area
  *                   Squeeze the overmatch space into one space
- *                2) Clear all space before first vaild charatctor
+ *                2) Clear all space before first valid charatctor
  * Input:       cmdKey : Pass in the buff string, which is ready to be operated
  *              cmdOut : Pass out the buffer string ,which has already been operated
  *              size : cmdKey length
@@ -407,7 +407,7 @@ unsigned int OsCmdKeyShift(const char *cmdKey, char *cmdOut, unsigned int size)
 
     /* Backup the 'output' start address */
     outputBak = output;
-    /* Scan each charactor in 'cmdKey',and squeeze the overmuch space and ignore invaild charactor */
+    /* Scan each charactor in 'cmdKey',and squeeze the overmuch space and ignore invalid charactor */
     for (; *cmdKey != '\0'; cmdKey++) {
         /* Detected a Double Quotes, switch the matching status */
         if (*(cmdKey) == '\"') {
@@ -417,7 +417,7 @@ unsigned int OsCmdKeyShift(const char *cmdKey, char *cmdOut, unsigned int size)
         /* 1) Quotes matching status is FALSE (which said that the space is not been marked by double quotes) */
         /* 2) Current charactor is a space */
         /* 3) Next charactor is a space too, or the string is been seeked to the end already(\0) */
-        /* 4) Invaild charactor, such as single quotes */
+        /* 4) Invalid charactor, such as single quotes */
         if ((*cmdKey == ' ') && ((*(cmdKey + 1) == ' ') || (*(cmdKey + 1) == '\0')) && QUOTES_STATUS_CLOSE(quotes)) {
             continue;
         }

apps/shell/src/shmsg.c

@@ -29,6 +29,8 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#define _GNU_SOURCE
+
 #include "stdlib.h"
 #include "stdio.h"
 #include "unistd.h"
@@ -42,7 +44,10 @@
 #include "shell_pri.h"
 #include "shcmd.h"
 
+#define CHAR_CTRL_C   '\x03'
+#define CHAR_CTRL_DEL '\x7F'
 
+#define VISIABLE_CHAR(ch) ((ch) > 0x1F && (ch) < 0x7F)
 
 char *GetCmdline(ShellCB *shellCB)
 {
@@ -128,7 +133,7 @@ int ShellNotify(ShellCB *shellCB)
 }
 
 enum {
-    STAT_NOMAL_KEY,
+    STAT_NORMAL_KEY,
     STAT_ESC_KEY,
     STAT_MULTI_KEY
 };
@@ -147,23 +152,23 @@ static int ShellCmdLineCheckUDRL(const char ch, ShellCB *shellCB)
     } else if (ch == 0x41) { /* up */
         if (shellCB->shellKeyType == STAT_MULTI_KEY) {
             OsShellHistoryShow(CMD_KEY_UP, shellCB);
-            shellCB->shellKeyType = STAT_NOMAL_KEY;
+            shellCB->shellKeyType = STAT_NORMAL_KEY;
             return ret;
         }
     } else if (ch == 0x42) { /* down */
         if (shellCB->shellKeyType == STAT_MULTI_KEY) {
-            shellCB->shellKeyType = STAT_NOMAL_KEY;
+            shellCB->shellKeyType = STAT_NORMAL_KEY;
             OsShellHistoryShow(CMD_KEY_DOWN, shellCB);
             return ret;
         }
     } else if (ch == 0x43) { /* right */
         if (shellCB->shellKeyType == STAT_MULTI_KEY) {
-            shellCB->shellKeyType = STAT_NOMAL_KEY;
+            shellCB->shellKeyType = STAT_NORMAL_KEY;
             return ret;
         }
     } else if (ch == 0x44) { /* left */
         if (shellCB->shellKeyType == STAT_MULTI_KEY) {
-            shellCB->shellKeyType = STAT_NOMAL_KEY;
+            shellCB->shellKeyType = STAT_NORMAL_KEY;
             return ret;
         }
     }
@@ -200,7 +205,21 @@ void ParseEnterKey(OutputFunc outputFunc, ShellCB *shellCB)
         shellCB->shellBuf[shellCB->shellBufOffset] = '\0';
     }
 NOTIFY:
-    outputFunc("\n");
+    shellCB->shellBufOffset = 0;
+    ShellTaskNotify(shellCB);
+}
+
+void ParseCancelKey(OutputFunc outputFunc, ShellCB *shellCB)
+{
+    if ((shellCB == NULL) || (outputFunc == NULL)) {
+        return;
+    }
+
+    if (shellCB->shellBufOffset <= (SHOW_MAX_LEN - 1)) {
+        shellCB->shellBuf[0] = CHAR_CTRL_C;
+        shellCB->shellBuf[1] = '\0';
+    }
+
     shellCB->shellBufOffset = 0;
     ShellTaskNotify(shellCB);
 }
@@ -236,7 +255,7 @@ void ParseTabKey(OutputFunc outputFunc, ShellCB *shellCB)
 
 void ParseNormalChar(char ch, OutputFunc outputFunc, ShellCB *shellCB)
 {
-    if ((shellCB == NULL) || (outputFunc == NULL)) {
+    if ((shellCB == NULL) || (outputFunc == NULL) || !VISIABLE_CHAR(ch)) {
         return;
     }
 
@@ -246,7 +265,7 @@ void ParseNormalChar(char ch, OutputFunc outputFunc, ShellCB *shellCB)
         outputFunc("%c", ch);
     }
 
-    shellCB->shellKeyType = STAT_NOMAL_KEY;
+    shellCB->shellKeyType = STAT_NORMAL_KEY;
 }
 
 void ShellCmdLineParse(char c, OutputFunc outputFunc, ShellCB *shellCB)
@@ -254,7 +273,7 @@ void ShellCmdLineParse(char c, OutputFunc outputFunc, ShellCB *shellCB)
     const char ch = c;
     int ret;
 
-    if ((shellCB->shellBufOffset == 0) && (ch != '\n') && (ch != '\0')) {
+    if ((shellCB->shellBufOffset == 0) && (ch != '\n') && (ch != CHAR_CTRL_C) && (ch != '\0')) {
         (void)memset_s(shellCB->shellBuf, SHOW_MAX_LEN, 0, SHOW_MAX_LEN);
     }
 
@@ -263,8 +282,11 @@ void ShellCmdLineParse(char c, OutputFunc outputFunc, ShellCB *shellCB)
         case '\n': /* enter */
             ParseEnterKey(outputFunc, shellCB);
             break;
+        case CHAR_CTRL_C: /* ctrl + c */
+            ParseCancelKey(outputFunc, shellCB);
+            break;
         case '\b': /* backspace */
-        case 0x7F: /* delete(0x7F) */
+        case CHAR_CTRL_DEL: /* delete(0x7F) */
             ParseDeleteKey(outputFunc, shellCB);
             break;
         case '\t': /* tab */
@@ -329,40 +351,80 @@ char *GetCmdName(const char *cmdline, unsigned int len)
     return cmdName;
 }
 
+void ChildExec(const char *cmdName, char *const paramArray[])
+{
+    int ret;
+    pid_t gid;
+
+    ret = setpgrp();
+    if (ret == -1) {
+        exit(1);
+    }
+
+    gid = getpgrp();
+    if (gid < 0) {
+        printf("get group id failed, pgrpid %d, errno %d\n", gid, errno);
+    }
+
+    ret = tcsetpgrp(STDIN_FILENO, gid);
+    if (ret != 0) {
+        printf("tcsetpgrp failed, errno %d\n", errno);
+    }
+
+    ret = execve(cmdName, paramArray, NULL);
+    if (ret == -1) {
+        perror("execve");
+        exit(-1);
+    }
+}
+
+int CheckExit(const char *cmdName, const CmdParsed *cmdParsed)
+{
+    int ret = 0;
+
+    if (strlen(cmdName) != CMD_EXIT_COMMAND_BYTES || strncmp(cmdName, CMD_EXIT_COMMAND, CMD_EXIT_COMMAND_BYTES) != 0) {
+        return 0;
+    }
+
+    if (cmdParsed->paramCnt > 1) {
+        printf("exit: too many arguments\n");
+        return -1;
+    }
+    if (cmdParsed->paramCnt == 1) {
+        char *p = NULL;
+        ret = strtol(cmdParsed->paramArray[0], &p, CMD_EXIT_CODE_BASE_DEC);
+        if (*p != '\0') {
+            printf("exit: bad number: %s\n", cmdParsed->paramArray[0]);
+            return -1;
+        }
+    }
+
+    exit(ret);
+}
+
 static void DoCmdExec(const char *cmdName, const char *cmdline, unsigned int len, const CmdParsed *cmdParsed)
 {
     int ret;
     pid_t forkPid;
-    pid_t gid;
 
-    if (strncmp(cmdline, SHELL_EXEC_COMMAND, SHELL_EXEC_COMMAND_BYTES) == 0) {
+    if (strncmp(cmdline, CMD_EXEC_COMMAND, CMD_EXEC_COMMAND_BYTES) == 0) {
         forkPid = fork();
         if (forkPid < 0) {
             printf("Faild to fork from shell\n");
             return;
         } else if (forkPid == 0) {
-            ret = setpgrp();
-            if (ret == -1) {
-                exit(1);
-            }
-
-            gid = getpgrp();
-            if (gid < 0) {
-                printf("get group id failed, pgrpid %d, errno %d\n", gid, errno);
-            }
-
-            ret = tcsetpgrp(STDIN_FILENO, gid);
+            ChildExec(cmdParsed->paramArray[0], cmdParsed->paramArray);
+        } else {
+            waitpid(forkPid, 0, 0);
+            ret = tcsetpgrp(STDIN_FILENO, getpid());
             if (ret != 0) {
                 printf("tcsetpgrp failed, errno %d\n", errno);
             }
-
-            ret = execve((const char *)cmdParsed->paramArray[0], (char * const *)cmdParsed->paramArray, NULL);
-            if (ret == -1) {
-                perror("execve");
-                exit(-1);
-            }
         }
     } else {
+        if (CheckExit(cmdName, cmdParsed) < 0) {
+            return;
+        }
         (void)syscall(__NR_shellexec, cmdName, cmdline);
     }
 }
@@ -397,7 +459,7 @@ static void ParseAndExecCmdline(CmdParsed *cmdParsed, const char *cmdline, unsig
     DoCmdExec(cmdName, cmdlineOrigin, len, cmdParsed);
 
     if (getcwd(shellWorkingDirectory, PATH_MAX) != NULL) {
-        (void)OsShellSetWorkingDirtectory(shellWorkingDirectory, (PATH_MAX + 1));
+        (void)OsShellSetWorkingDirectory(shellWorkingDirectory, (PATH_MAX + 1));
     }
 
 OUT:
@@ -417,7 +479,7 @@ unsigned int PreHandleCmdline(const char *input, char **output, unsigned int *ou
     unsigned int removeLen = strlen("./"); /* "./" needs to be removed if it exists */
     unsigned int ret;
     char *newCmd = NULL;
-    char *execCmd = SHELL_EXEC_COMMAND;
+    char *execCmd = CMD_EXEC_COMMAND;
     const char *cmdBuf = input;
     unsigned int cmdBufLen = strlen(cmdBuf);
     char *shiftStr = (char *)malloc(cmdBufLen + 1);
@@ -520,7 +582,11 @@ static void ShellCmdProcess(ShellCB *shellCB)
         if (buf == NULL) {
             break;
         }
-
+        if (buf[0] == CHAR_CTRL_C) {
+            printf("^C");
+            buf[0] = '\n';
+        }
+        printf("\n");
         ExecCmdline(buf);
         ShellSaveHistoryCmd(buf, shellCB);
         shellCB->cmdMaskKeyLink = shellCB->cmdHistoryKeyLink;

apps/toybox/BUILD.gn

@@ -46,7 +46,10 @@ copy("copy_toybox_config") {
 }
 
 build_ext_component("build_toybox") {
-  deps = [ ":copy_toybox_src", ":copy_toybox_config" ]
+  deps = [
+    ":copy_toybox_config",
+    ":copy_toybox_src",
+  ]
   deps += [ "//prebuilts/lite/sysroot" ]
   exec_path = rebase_path("$target_out_dir/toybox_build")
 

apps/trace/BUILD.gn

@@ -31,4 +31,4 @@ import("//kernel/liteos_a/liteos.gni")
 
 executable("trace") {
   sources = [ "src/trace.c" ]
-}
+}

apps/trace/src/trace.c

@@ -88,11 +88,13 @@ static void TraceWrite(int fd, int argc, char **argv)
 {
     int i;
     UsrEventInfo info = {0};
-    info.eventType = strtoul(argv[2], NULL, 0);
-    info.identity = strtoul(argv[3], NULL, 0);
+    info.eventType = strtoul(argv[2], NULL, 0); /* 2, argv number  */
+    info.identity = strtoul(argv[3], NULL, 0); /* 3, argv number  */
+    /* 4, argc -4 means user argv that does not contain argv[0]~argv[3] */
     int paramNum = (argc - 4) > TRACE_USR_MAX_PARAMS ? TRACE_USR_MAX_PARAMS : (argc - 4);
-    
+
     for (i = 0; i < paramNum; i++) {
+        /* 4, argc -4 means user argv that does not contain argv[0]~argv[3] */
         info.params[i] = strtoul(argv[4 + i], NULL, 0);
     }
     (void)write(fd, &info, sizeof(UsrEventInfo));
@@ -108,22 +110,22 @@ int main(int argc, char **argv)
 
     if (argc == 1) {
         TraceUsage();
-    } else if (argc == 2 && strcmp(argv[1], "start") == 0) {
+    } else if (argc == 2 && strcmp(argv[1], "start") == 0) { /* 2, argv num, no special meaning */
         ioctl(fd, TRACE_START, NULL);
-    } else if (argc == 2 && strcmp(argv[1], "stop") == 0) {
+    } else if (argc == 2 && strcmp(argv[1], "stop") == 0) { /* 2, argv num, no special meaning */
         ioctl(fd, TRACE_STOP, NULL);
-    } else if (argc == 2 && strcmp(argv[1], "reset") == 0) {
+    } else if (argc == 2 && strcmp(argv[1], "reset") == 0) { /* 2, argv num, no special meaning */
         ioctl(fd, TRACE_RESET, NULL);
-    } else if (argc == 3 && strcmp(argv[1], "mask") == 0) {
+    } else if (argc == 3 && strcmp(argv[1], "mask") == 0) { /* 3, argv num, no special meaning */
         size_t mask = strtoul(argv[2], NULL, 0);
         ioctl(fd, TRACE_SET_MASK, mask);
-    } else if (argc == 3 && strcmp(argv[1], "dump") == 0) {
+    } else if (argc == 3 && strcmp(argv[1], "dump") == 0) { /* 3, argv num, no special meaning */
         size_t flag = strtoul(argv[2], NULL, 0);
         ioctl(fd, TRACE_DUMP, flag);
-    } else if (argc == 3 && strcmp(argv[1], "read") == 0) {
+    } else if (argc == 3 && strcmp(argv[1], "read") == 0) { /* 3, argv num, no special meaning */
         size_t size = strtoul(argv[2], NULL, 0);
         TraceRead(fd, size);
-    } else if (argc >= 4 && strcmp(argv[1], "write") == 0) {
+    } else if (argc >= 4 && strcmp(argv[1], "write") == 0) { /* 4, argv num, no special meaning */
         TraceWrite(fd, argc, argv);
     } else {
         printf("Unsupported trace command.\n");

arch/arm/arm.mk

@@ -74,12 +74,3 @@ ARCH_INCLUDE            := -I $(LITEOSTOPDIR)/arch/arm/include \
                            -I $(LITEOSTOPDIR)/arch/arm/$(ARCH)/src/include
 
 LITEOS_PLATFORM_INCLUDE += $(ARCH_INCLUDE)
-
-# expose FPU info to assembly code
-ifeq ($(LOSCFG_ARCH_FPU_DISABLE), y)
-    LITEOS_CMACRO       += -DLOSCFG_ARCH_FPU_DISABLE
-else ifeq ($(LOSCFG_ARCH_FPU_VFP_D16), y)
-    LITEOS_CMACRO       += -DLOSCFG_ARCH_FPU_VFP_D16
-else ifeq ($(LOSCFG_ARCH_FPU_VFP_D32), y)
-    LITEOS_CMACRO       += -DLOSCFG_ARCH_FPU_VFP_D32
-endif

arch/arm/arm/BUILD.gn

@@ -46,10 +46,10 @@ kernel_module(module_name) {
     "src/los_hw_runstop.S",
     "src/los_hw_tick.c",
     "src/los_hwi.c",
+    "src/smp.c",
     "src/strncpy_from_user.c",
     "src/strnlen_user.c",
     "src/user_copy.c",
-    "src/smp.c",
   ]
 
   if (LOSCFG_ARCH_ARM_VER == "armv7-a") {
@@ -64,6 +64,10 @@ kernel_module(module_name) {
 
   include_dirs = [ "src/include" ]
 
+  if (defined(LOSCFG_PERF_HW_PMU)) {
+    sources += [ "src/pmu/armv7_pmu.c" ]
+  }
+
   if (defined(LOSCFG_GDB)) {
     configs += [ ":as_objs_libc_flags" ]
   }
@@ -82,9 +86,11 @@ config("as_objs_libc_flags") {
   defines = [ "__ASSEMBLY__" ]
 
   # linux style macros
-  if (defined(LOSCFG_ARCH_ARM_V7A) || defined(LOSCFG_ARCH_ARM_V7R) || defined(LOSCFG_ARCH_ARM_V7M)) {
+  if (defined(LOSCFG_ARCH_ARM_V7A) || defined(LOSCFG_ARCH_ARM_V7R) ||
+      defined(LOSCFG_ARCH_ARM_V7M)) {
     defines += [ "__LINUX_ARM_ARCH__=7" ]
-  } else if (defined(LOSCFG_ARCH_ARM_V8A) || defined(LOSCFG_ARCH_ARM_V8R) || defined(LOSCFG_ARCH_ARM_V8M)) {
+  } else if (defined(LOSCFG_ARCH_ARM_V8A) || defined(LOSCFG_ARCH_ARM_V8R) ||
+             defined(LOSCFG_ARCH_ARM_V8M)) {
     defines += [ "__LINUX_ARM_ARCH__=8" ]
   }
 }

arch/arm/arm/Makefile

@@ -32,11 +32,6 @@ include $(LITEOSTOPDIR)/config.mk
 MODULE_NAME := $(LOSCFG_ARCH_CPU)
 
 LOCAL_SRCS := $(wildcard src/*.c) $(wildcard src/*.S)
-LOCAL_INCLUDE := \
-	-I $(LITEOSTOPDIR)/kernel/base/include \
-	-I $(LITEOSTOPDIR)/kernel/extended/include \
-	-I $(LITEOSTOPDIR)/kernel/extended/dynload/include \
-	-I $(LITEOSTOPDIR)/arch/arm/arm/include \
 
 ifeq ($(LOSCFG_ARCH_ARM_VER), "armv7-a")
 LOCAL_SRCS += $(wildcard src/armv7a/*.S)
@@ -48,7 +43,11 @@ else
 LOCAL_SRCS += src/startup/reset_vector_up.S
 endif
 
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
+ifeq ($(LOSCFG_PERF_HW_PMU), y)
+LOCAL_SRCS += src/pmu/armv7_pmu.c
+endif
+
+LOCAL_FLAGS := $(LOCAL_INCLUDE)
 
 AS_OBJS_LIBC_FLAGS  = -D__ASSEMBLY__
 # linux style macros

arch/arm/arm/include/los_arch_mmu.h

@@ -71,5 +71,5 @@ VADDR_T *OsGFirstTableGet(VOID);
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-#endif /* __LOS_VM_PAGE_H__ */
+#endif /* __LOS_ARCH_MMU_H__ */
 

arch/arm/arm/src/include/armv7_pmu_pri.h

@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _ARMV7_PMU_PRI_H
+#define _ARMV7_PMU_PRI_H
+
+#include "los_typedef.h"
+
+#ifdef __cplusplus
+#if __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+/* counters overflow flag status reg */
+#define ARMV7_FLAG_MASK         0xffffffff                 /* Mask for writable bits */
+#define ARMV7_OVERFLOWED_MASK   ARMV7_FLAG_MASK            /* Mask for pmu overflowed */
+
+/* pmnc config reg */
+#define ARMV7_PMNC_E            (1U << 0)                  /* Enable all counters */
+#define ARMV7_PMNC_P            (1U << 1)                  /* Reset all counters */
+#define ARMV7_PMNC_C            (1U << 2)                  /* Cycle counter reset */
+#define ARMV7_PMNC_D            (1U << 3)                  /* CCNT counts every 64th cpu cycle */
+#define ARMV7_PMNC_X            (1U << 4)                  /* Export to ETM */
+#define ARMV7_PMNC_DP           (1U << 5)                  /* Disable CCNT if non-invasive debug */
+#define ARMV7_PMNC_MASK         0x3f                       /* Mask for writable bits */
+
+/* pmxevtyper event selection reg */
+#define ARMV7_EVTYPE_MASK       0xc80000ff                 /* Mask for writable bits */
+
+/* armv7 counters index */
+#define ARMV7_IDX_COUNTER0      1
+#define ARMV7_IDX_CYCLE_COUNTER 0
+#define ARMV7_IDX_MAX_COUNTER   9
+
+#define ARMV7_MAX_COUNTERS      32
+#define ARMV7_IDX_COUNTER_LAST  (ARMV7_IDX_CYCLE_COUNTER + ARMV7_MAX_COUNTERS - 1)
+#define ARMV7_COUNTER_MASK      (ARMV7_MAX_COUNTERS - 1)
+
+/* armv7 event counter index mapping */
+#define ARMV7_CNT2BIT(x)        (1UL << (x))
+#define ARMV7_IDX2CNT(x)        (((x) - ARMV7_IDX_COUNTER0) & ARMV7_COUNTER_MASK)
+
+enum PmuEventType {
+    ARMV7_PERF_HW_CYCLES                   = 0xFF,    /* cycles */
+    ARMV7_PERF_HW_INSTRUCTIONS             = 0x08,    /* instructions */
+    ARMV7_PERF_HW_DCACHES                  = 0x04,    /* dcache */
+    ARMV7_PERF_HW_DCACHE_MISSES            = 0x03,    /* dcache-misses */
+    ARMV7_PERF_HW_ICACHES                  = 0x14,    /* icache */
+    ARMV7_PERF_HW_ICACHE_MISSES            = 0x01,    /* icache-misses */
+    ARMV7_PERF_HW_BRANCHES                 = 0x0C,    /* software change of pc */
+    ARMV7_PERF_HW_BRANCE_MISSES            = 0x10,    /* branch-misses */
+    ARMV7_PERF_HW_PRED_BRANCH              = 0x12,    /* predictable branches */
+    ARMV7_PERF_HW_NUM_CYC_IRQ              = 0x50,    /* number of cycles Irqs are interrupted */
+    ARMV7_PERF_HW_EXC_TAKEN                = 0x09,    /* exception_taken */
+    ARMV7_PERF_HW_DATA_READ                = 0x06,    /* data read */
+    ARMV7_PERF_HW_DATA_WRITE               = 0x07,    /* data write */
+    ARMV7_PERF_HW_STREX_PASSED             = 0x80,    /* strex passed */
+    ARMV7_PERF_HW_STREX_FAILED             = 0x81,    /* strex failed */
+    ARMV7_PERF_HW_LP_IN_TCM                = 0x82,    /* literal pool in TCM region */
+    ARMV7_PERF_HW_DMB_STALL                = 0x90,    /* DMB stall */
+    ARMV7_PERF_HW_ITCM_ACCESS              = 0x91,    /* ITCM access */
+    ARMV7_PERF_HW_DTCM_ACCESS              = 0x92,    /* DTCM access */
+    ARMV7_PERF_HW_DATA_EVICTION            = 0x93,    /* data eviction */
+    ARMV7_PERF_HW_SCU                      = 0x94,    /* SCU coherency operation */
+    ARMV7_PERF_HW_INSCACHE_DEP_DW          = 0x95,    /* instruction cache dependent stall */
+    ARMV7_PERF_HW_DATA_CACHE_DEP_STALL     = 0x96,    /* data cache dependent stall */
+    ARMV7_PERF_HW_NOCACHE_NO_PER_DEP_STALL = 0x97,    /* non-cacheable no peripheral dependent stall */
+    ARMV7_PERF_HW_NOCACHE_PER_DEP_STALL    = 0x98,    /* non-Cacheable peripheral dependent stall */
+    ARMV7_PERF_HW_DATA_CACHE_HP_DEP_STALL  = 0x99,    /* data cache high priority dependent stall */
+    ARMV7_PERF_HW_AXI_FAST_PERIPHERAL      = 0x9A,    /* Accesses_to_AXI_fast_peripheral_port(reads_and_writes) */
+};
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+#endif /* _ARMV7_PMU_PRI_H */

arch/arm/arm/src/include/los_exc_pri.h

@@ -44,10 +44,24 @@ extern "C" {
 #define OS_SYSTEM_EXC_CURR_CPU  1
 #define OS_SYSTEM_EXC_OTHER_CPU 2
 
+#define REGION_PATH_MAX 32
+
+typedef struct {
+#ifdef LOSCFG_KERNEL_VM
+    UINTPTR ip;
+    UINT32 len; /* f_path length */
+    CHAR f_path[REGION_PATH_MAX];
+#else
+    UINTPTR ip;
+#endif
+} IpInfo;
+
 extern UINT32 OsGetSystemStatus(VOID);
 extern VOID BackTraceSub(UINTPTR regFP);
 extern VOID OsExcInit(VOID);
 extern BOOL OsSystemExcIsReset(VOID);
+extern UINT32 BackTraceGet(UINTPTR regFP, IpInfo *callChain, UINT32 maxDepth);
+extern BOOL OsGetUsrIpInfo(UINTPTR ip, IpInfo *info);
 
 #ifdef __cplusplus
 #if __cplusplus

arch/arm/arm/src/los_arch_mmu.c

@@ -177,7 +177,7 @@ STATIC VOID OsTryUnmapL1PTE(const LosArchMmu *archMmu, vaddr_t vaddr, UINT32 sca
     /*
      * Check if all pages related to this l1 entry are deallocated.
      * We only need to check pages that we did not clear above starting
-     * from page_idx and wrapped around SECTION.
+     * from scanIndex and wrapped around SECTION.
      */
     UINT32 l1Index;
     PTE_T l1Entry;
@@ -618,7 +618,7 @@ STATIC UINT32 OsCvtPte2FlagsToAttrs(UINT32 flags)
     return mmuFlags;
 }
 
-STATIC UINT32 OsMapL2PageContinous(PTE_T pte1, UINT32 flags, VADDR_T *vaddr, PADDR_T *paddr, UINT32 *count)
+STATIC UINT32 OsMapL2PageContinuous(PTE_T pte1, UINT32 flags, VADDR_T *vaddr, PADDR_T *paddr, UINT32 *count)
 {
     PTE_T *pte2BasePtr = NULL;
     UINT32 archFlags;
@@ -662,9 +662,9 @@ status_t LOS_ArchMmuMap(LosArchMmu *archMmu, VADDR_T vaddr, PADDR_T paddr, size_
             l1Entry = OsGetPte1(archMmu->virtTtb, vaddr);
             if (OsIsPte1Invalid(l1Entry)) {
                 OsMapL1PTE(archMmu, &l1Entry, vaddr, flags);
-                saveCounts = OsMapL2PageContinous(l1Entry, flags, &vaddr, &paddr, &count);
+                saveCounts = OsMapL2PageContinuous(l1Entry, flags, &vaddr, &paddr, &count);
             } else if (OsIsPte1PageTable(l1Entry)) {
-                saveCounts = OsMapL2PageContinous(l1Entry, flags, &vaddr, &paddr, &count);
+                saveCounts = OsMapL2PageContinuous(l1Entry, flags, &vaddr, &paddr, &count);
             } else {
                 LOS_Panic("%s %d, unimplemented tt_entry %x\n", __FUNCTION__, __LINE__, l1Entry);
             }
@@ -716,7 +716,7 @@ STATUS_T LOS_ArchMmuMove(LosArchMmu *archMmu, VADDR_T oldVaddr, VADDR_T newVaddr
     PADDR_T paddr = 0;
 
     if ((archMmu == NULL) || (oldVaddr == 0) || (newVaddr == 0) || (count == 0)) {
-        VM_ERR("invalid args: archMmu %p, oldVaddr %p, newVddr %p, count %d",
+        VM_ERR("invalid args: archMmu %p, oldVaddr %p, newVaddr %p, count %d",
                archMmu, oldVaddr, newVaddr, count);
         return LOS_NOK;
     }
@@ -790,7 +790,7 @@ STATUS_T LOS_ArchMmuDestroy(LosArchMmu *archMmu)
         LOS_PhysPageFree(page);
     }
 
-    OsArmWriteTlbiasid(archMmu->asid);
+    OsArmWriteTlbiasidis(archMmu->asid);
     OsFreeAsid(archMmu->asid);
 #endif
     (VOID)LOS_MuxDestroy(&archMmu->mtx);

arch/arm/arm/src/los_dispatch.S

@@ -147,6 +147,14 @@ OsIrqHandler:
     /* disable irq, switch to svc mode */
     CPSID   i, #0x13
 
+#ifdef LOSCFG_KERNEL_PERF
+    PUSH    {R0-R3, R12, LR}
+    MOV     R0, LR
+    MOV     R1, FP
+    BL      OsPerfSetIrqRegs
+    POP     {R0-R3, R12, LR}
+#endif
+
     STMFD   SP!, {R0-R3, R12, LR}
     STMFD   SP, {R13, R14}^
     SUB     SP, SP, #(4 * 4)

arch/arm/arm/src/los_exc.c

@@ -228,7 +228,8 @@ UINT32 OsArmSharedPageFault(UINT32 excType, ExcContext *frame, UINT32 far, UINT3
             break;
         }
         default:
-            ret = LOS_ERRNO_VM_NOT_FOUND;
+            OsArmWriteTlbimvaais(ROUNDDOWN(far, PAGE_SIZE));
+            ret = LOS_OK;
             break;
     }
 #if defined(LOSCFG_KERNEL_SMP) && defined(LOSCFG_DEBUG_VERSION)
@@ -244,7 +245,7 @@ UINT32 OsArmSharedPageFault(UINT32 excType, ExcContext *frame, UINT32 far, UINT3
 
 STATIC VOID OsExcType(UINT32 excType, ExcContext *excBufAddr, UINT32 far, UINT32 fsr)
 {
-    /* undefinited exception handling or software interrupt */
+    /* undefined exception handling or software interrupt */
     if ((excType == OS_EXCEPT_UNDEF_INSTR) || (excType == OS_EXCEPT_SWI)) {
         if ((excBufAddr->regCPSR & INSTR_SET_MASK) == 0) { /* work status: ARM */
             excBufAddr->PC = excBufAddr->PC - ARM_INSTR_LEN;
@@ -276,8 +277,8 @@ STATIC const CHAR *g_excTypeString[] = {
 #ifdef LOSCFG_KERNEL_VM
 STATIC VADDR_T OsGetTextRegionBase(LosVmMapRegion *region, LosProcessCB *runProcess)
 {
-    struct file *curFilep = NULL;
-    struct file *lastFilep = NULL;
+    struct Vnode *curVnode = NULL;
+    struct Vnode *lastVnode = NULL;
     LosVmMapRegion *curRegion = NULL;
     LosVmMapRegion *lastRegion = NULL;
 
@@ -296,9 +297,9 @@ STATIC VADDR_T OsGetTextRegionBase(LosVmMapRegion *region, LosProcessCB *runProc
         if ((lastRegion == NULL) || !LOS_IsRegionFileValid(lastRegion)) {
             goto DONE;
         }
-        curFilep = curRegion->unTypeData.rf.file;
-        lastFilep = lastRegion->unTypeData.rf.file;
-    } while (!strcmp(curFilep->f_path, lastFilep->f_path));
+        curVnode = curRegion->unTypeData.rf.vnode;
+        lastVnode = lastRegion->unTypeData.rf.vnode;
+    } while (curVnode == lastVnode);
 
 DONE:
 #ifdef LOSCFG_KERNEL_DYNLOAD
@@ -479,7 +480,7 @@ STATIC VOID OsDumpProcessUsedMemRegion(LosProcessCB *runProcess, LosVmSpace *run
     RB_SCAN_SAFE_END(&space->regionRbTree, pstRbNodeTemp, pstRbNodeNext)
 }
 
-STATIC VOID OsDumpProcessUsedMemNode(UINT16 vmmFalgs)
+STATIC VOID OsDumpProcessUsedMemNode(UINT16 vmmFlags)
 {
     LosProcessCB *runProcess = NULL;
     LosVmSpace *runspace = NULL;
@@ -500,7 +501,7 @@ STATIC VOID OsDumpProcessUsedMemNode(UINT16 vmmFalgs)
         return;
     }
 
-    OsDumpProcessUsedMemRegion(runProcess, runspace, vmmFalgs);
+    OsDumpProcessUsedMemRegion(runProcess, runspace, vmmFlags);
     return;
 }
 #endif
@@ -563,7 +564,6 @@ STATIC VOID OsUserExcHandle(ExcContext *excBufAddr)
 #else
     g_currHandleExcCpuID = INVALID_CPUID;
 #endif
-    runProcess->processStatus &= ~OS_PROCESS_FLAG_EXIT;
 
 #ifdef LOSCFG_KERNEL_SMP
 #ifdef LOSCFG_FS_VFS
@@ -580,10 +580,10 @@ STATIC VOID OsUserExcHandle(ExcContext *excBufAddr)
 #endif
     OsProcessExitCodeSignalSet(runProcess, SIGUSR2);
 
-    /* An exception was raised by a task that is not the current main thread during the exit process of
+    /* An exception was raised by a task during the exit process of
      * the current process.
      */
-    if ((runProcess->processStatus & OS_PROCESS_FLAG_EXIT) && (runProcess->threadGroupID != runTask->taskID)) {
+    if (runProcess->processStatus & OS_PROCESS_FLAG_EXIT) {
         SCHEDULER_UNLOCK(intSave);
         /* Exception handling All operations should be kept prior to that operation */
         OsExcRestore();
@@ -690,20 +690,66 @@ FOUND:
     return found;
 }
 
-VOID BackTraceSub(UINTPTR regFP)
+BOOL OsGetUsrIpInfo(UINTPTR ip, IpInfo *info)
+{
+    if (info == NULL) {
+        return FALSE;
+    }
+#ifdef LOSCFG_KERNEL_VM
+    BOOL ret = FALSE;
+    const CHAR *name = NULL;
+    LosVmMapRegion *region = NULL;
+    LosProcessCB *runProcess = OsCurrProcessGet();
+
+    if (LOS_IsUserAddress((VADDR_T)ip) == FALSE) {
+        info->ip = ip;
+        name = "kernel";
+        ret = FALSE;
+        goto END;
+    }
+
+    region = LOS_RegionFind(runProcess->vmSpace, (VADDR_T)ip);
+    if (region == NULL) {
+        info->ip = ip;
+        name = "invalid";
+        ret = FALSE;
+        goto END;
+    }
+
+    info->ip = ip - OsGetTextRegionBase(region, runProcess);
+    name = OsGetRegionNameOrFilePath(region);
+    ret = TRUE;
+    if (strcmp(name, "/lib/libc.so") != 0) {
+        PRINT_ERR("ip = 0x%x, %s\n", info->ip, name);
+    }
+END:
+    info->len = strlen(name);
+    if (strncpy_s(info->f_path, REGION_PATH_MAX, name, REGION_PATH_MAX - 1) != EOK) {
+        info->f_path[0] = '\0';
+        info->len = 0;
+        PRINT_ERR("copy f_path failed, %s\n", name);
+    }
+    return ret;
+#else
+    info->ip = ip;
+    return FALSE;
+#endif
+}
+
+UINT32 BackTraceGet(UINTPTR regFP, IpInfo *callChain, UINT32 maxDepth)
 {
     UINTPTR tmpFP, backLR;
     UINTPTR stackStart, stackEnd;
     UINTPTR backFP = regFP;
     UINT32 count = 0;
+    BOOL ret;
     VADDR_T kvaddr;
-#ifdef LOSCFG_KERNEL_VM
-    LosProcessCB *runProcess = OsCurrProcessGet();
-#endif
 
     if (FindSuitableStack(regFP, &stackStart, &stackEnd, &kvaddr) == FALSE) {
-        PrintExcInfo("traceback error fp = 0x%x\n", regFP);
-        return;
+        if (callChain == NULL) {
+            PrintExcInfo("traceback error fp = 0x%x\n", regFP);
+        }
+        return 0;
     }
 
     /*
@@ -715,7 +761,9 @@ VOID BackTraceSub(UINTPTR regFP)
     tmpFP = *(UINTPTR *)(UINTPTR)kvaddr;
     if (IsValidFP(tmpFP, stackStart, stackEnd, NULL) == TRUE) {
         backFP = tmpFP;
-        PrintExcInfo("traceback fp fixed, trace using   fp = 0x%x\n", backFP);
+        if (callChain == NULL) {
+            PrintExcInfo("traceback fp fixed, trace using   fp = 0x%x\n", backFP);
+        }
     }
 
     while (IsValidFP(backFP, stackStart, stackEnd, &kvaddr) == TRUE) {
@@ -723,38 +771,49 @@ VOID BackTraceSub(UINTPTR regFP)
 #ifdef LOSCFG_COMPILER_CLANG_LLVM
         backFP = *(UINTPTR *)(UINTPTR)kvaddr;
         if (IsValidFP(tmpFP + POINTER_SIZE, stackStart, stackEnd, &kvaddr) == FALSE) {
-            PrintExcInfo("traceback backLR check failed, backLP: 0x%x\n", tmpFP + POINTER_SIZE);
-            return;
+            if (callChain == NULL) {
+                PrintExcInfo("traceback backLR check failed, backLP: 0x%x\n", tmpFP + POINTER_SIZE);
+            }
+            return 0;
         }
         backLR = *(UINTPTR *)(UINTPTR)kvaddr;
 #else
         backLR = *(UINTPTR *)(UINTPTR)kvaddr;
         if (IsValidFP(tmpFP - POINTER_SIZE, stackStart, stackEnd, &kvaddr) == FALSE) {
-            PrintExcInfo("traceback backFP check failed, backFP: 0x%x\n", tmpFP - POINTER_SIZE);
-            return;
+            if (callChain == NULL) {
+                PrintExcInfo("traceback backFP check failed, backFP: 0x%x\n", tmpFP - POINTER_SIZE);
+            }
+            return 0;
         }
         backFP = *(UINTPTR *)(UINTPTR)kvaddr;
 #endif
+        IpInfo info = {0};
+        ret = OsGetUsrIpInfo((VADDR_T)backLR, &info);
+        if (callChain == NULL) {
+            PrintExcInfo("traceback %u -- lr = 0x%x    fp = 0x%x ", count, backLR, backFP);
+            if (ret) {
 #ifdef LOSCFG_KERNEL_VM
-        LosVmMapRegion *region = NULL;
-        if (LOS_IsUserAddress((VADDR_T)backLR) == TRUE) {
-            region = LOS_RegionFind(runProcess->vmSpace, (VADDR_T)backLR);
-        }
-        if (region != NULL) {
-            PrintExcInfo("traceback %u -- lr = 0x%x    fp = 0x%x lr in %s --> 0x%x\n", count, backLR, backFP,
-                         OsGetRegionNameOrFilePath(region),
-                         backLR - OsGetTextRegionBase(region, runProcess));
-            region = NULL;
-        } else
+                PrintExcInfo("lr in %s --> 0x%x\n", info.f_path, info.ip);
+#else
+                PrintExcInfo("\n");
 #endif
-        {
-            PrintExcInfo("traceback %u -- lr = 0x%x    fp = 0x%x\n", count, backLR, backFP);
+            } else {
+                PrintExcInfo("\n");
+            }
+        } else {
+            (VOID)memcpy_s(&callChain[count], sizeof(IpInfo), &info, sizeof(IpInfo));
         }
         count++;
-        if ((count == OS_MAX_BACKTRACE) || (backFP == tmpFP)) {
+        if ((count == maxDepth) || (backFP == tmpFP)) {
             break;
         }
     }
+    return count;
+}
+
+VOID BackTraceSub(UINTPTR regFP)
+{
+    (VOID)BackTraceGet(regFP, NULL, OS_MAX_BACKTRACE);
 }
 
 VOID BackTrace(UINT32 regFP)
@@ -989,15 +1048,17 @@ STATIC VOID OsCheckAllCpuStatus(VOID)
     LOCKDEP_CLEAR_LOCKS();
 
     LOS_SpinLock(&g_excSerializerSpin);
-    /* Only the current nuclear anomaly */
+    /* Only the current CPU anomaly */
     if (g_currHandleExcCpuID == INVALID_CPUID) {
         g_currHandleExcCpuID = currCpuID;
         g_currHandleExcPID = OsCurrProcessGet()->processID;
         LOS_SpinUnlock(&g_excSerializerSpin);
+#ifndef LOSCFG_SAVE_EXCINFO
         if (g_excFromUserMode[currCpuID] == FALSE) {
             target = (UINT32)(OS_MP_CPU_ALL & ~CPUID_TO_AFFI_MASK(currCpuID));
             HalIrqSendIpi(target, LOS_MP_IPI_HALT);
         }
+#endif
     } else if (g_excFromUserMode[currCpuID] == TRUE) {
         /* Both cores raise exceptions, and the current core is a user-mode exception.
          * Both cores are abnormal and come from the same process
@@ -1022,11 +1083,12 @@ STATIC VOID OsCheckAllCpuStatus(VOID)
             while (1) {}
         }
     }
-
+#ifndef LOSCFG_SAVE_EXCINFO
     /* use halt ipi to stop other active cores */
     if (g_excFromUserMode[ArchCurrCpuid()] == FALSE) {
         WaitAllCpuStop(currCpuID);
     }
+#endif
 }
 #endif
 
@@ -1176,10 +1238,10 @@ __attribute__((noinline)) VOID LOS_Panic(const CHAR *fmt, ...)
 {
     va_list ap;
     va_start(ap, fmt);
-    UartVprintf(fmt, ap);
+    OsVprintf(fmt, ap, EXC_OUTPUT);
     va_end(ap);
     __asm__ __volatile__("swi 0");
-    while (1);
+    while (1) {}
 }
 
 /* stack protector */

arch/arm/arm/src/pmu/armv7_pmu.c

@@ -0,0 +1,373 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "armv7_pmu_pri.h"
+#include "perf_pmu_pri.h"
+#include "los_hw_cpu.h"
+#include "asm/platform.h"
+
+OS_PMU_INTS(LOSCFG_KERNEL_CORE_NUM, g_pmuIrqNr);
+STATIC HwPmu g_armv7Pmu;
+
+STATIC INLINE UINT32 Armv7PmncRead(VOID)
+{
+    UINT32 value = 0;
+    __asm__ volatile("mrc p15, 0, %0, c9, c12, 0" : "=r"(value));
+    return value;
+}
+
+STATIC INLINE VOID Armv7PmncWrite(UINT32 value)
+{
+    value &= ARMV7_PMNC_MASK;
+    __asm__ volatile("mcr p15, 0, %0, c9, c12, 0" : : "r"(value));
+    ISB;
+}
+
+STATIC INLINE UINT32 Armv7PmuOverflowed(UINT32 pmnc)
+{
+    return pmnc & ARMV7_OVERFLOWED_MASK;
+}
+
+STATIC INLINE UINT32 Armv7PmuCntOverflowed(UINT32 pmnc, UINT32 index)
+{
+    return pmnc & ARMV7_CNT2BIT(ARMV7_IDX2CNT(index));
+}
+
+STATIC INLINE UINT32 Armv7CntValid(UINT32 index)
+{
+    return index <= ARMV7_IDX_COUNTER_LAST;
+}
+
+STATIC INLINE VOID Armv7PmuSelCnt(UINT32 index)
+{
+    UINT32 counter = ARMV7_IDX2CNT(index);
+    __asm__ volatile("mcr p15, 0, %0, c9, c12, 5" : : "r" (counter));
+    ISB;
+}
+
+STATIC INLINE VOID Armv7PmuSetCntPeriod(UINT32 index, UINT32 period)
+{
+    if (!Armv7CntValid(index)) {
+        PRINT_ERR("CPU writing wrong counter %u\n", index);
+    } else if (index == ARMV7_IDX_CYCLE_COUNTER) {
+        __asm__ volatile("mcr p15, 0, %0, c9, c13, 0" : : "r" (period));
+    } else {
+        Armv7PmuSelCnt(index);
+        __asm__ volatile("mcr p15, 0, %0, c9, c13, 2" : : "r" (period));
+    }
+}
+
+STATIC INLINE VOID Armv7BindEvt2Cnt(UINT32 index, UINT32 value)
+{
+    PRINT_DEBUG("bind event: %u to counter: %u\n", value, index);
+    Armv7PmuSelCnt(index);
+    value &= ARMV7_EVTYPE_MASK;
+    __asm__ volatile("mcr p15, 0, %0, c9, c13, 1" : : "r" (value));
+}
+
+STATIC INLINE VOID Armv7EnableCnt(UINT32 index)
+{
+    UINT32 counter = ARMV7_IDX2CNT(index);
+    PRINT_DEBUG("index : %u, counter: %u\n", index, counter);
+    __asm__ volatile("mcr p15, 0, %0, c9, c12, 1" : : "r" (ARMV7_CNT2BIT(counter)));
+}
+
+STATIC INLINE VOID Armv7DisableCnt(UINT32 index)
+{
+    UINT32 counter = ARMV7_IDX2CNT(index);
+    PRINT_DEBUG("index : %u, counter: %u\n", index, counter);
+    __asm__ volatile("mcr p15, 0, %0, c9, c12, 2" : : "r" (ARMV7_CNT2BIT(counter)));
+}
+
+STATIC INLINE VOID Armv7EnableCntInterrupt(UINT32 index)
+{
+    UINT32 counter = ARMV7_IDX2CNT(index);
+    __asm__ volatile("mcr p15, 0, %0, c9, c14, 1" : : "r" (ARMV7_CNT2BIT(counter)));
+    ISB;
+}
+
+STATIC INLINE VOID Armv7DisableCntInterrupt(UINT32 index)
+{
+    UINT32 counter = ARMV7_IDX2CNT(index);
+    __asm__ volatile("mcr p15, 0, %0, c9, c14, 2" : : "r" (ARMV7_CNT2BIT(counter)));
+    /* Clear the overflow flag in case an interrupt is pending. */
+    __asm__ volatile("mcr p15, 0, %0, c9, c12, 3" : : "r" (ARMV7_CNT2BIT(counter)));
+    ISB;
+}
+
+STATIC INLINE UINT32 Armv7PmuGetOverflowStatus(VOID)
+{
+    UINT32 value;
+
+    __asm__ volatile("mrc p15, 0, %0, c9, c12, 3" : "=r" (value));
+    value &= ARMV7_FLAG_MASK;
+    __asm__ volatile("mcr p15, 0, %0, c9, c12, 3" : : "r" (value));
+
+    return value;
+}
+
+STATIC VOID Armv7EnableEvent(Event *event)
+{
+    UINT32 cnt = event->counter;
+
+    if (!Armv7CntValid(cnt)) {
+        PRINT_ERR("CPU enabling wrong PMNC counter IRQ enable %u\n", cnt);
+        return;
+    }
+
+    if (event->period == 0) {
+        PRINT_INFO("event period value not valid, counter: %u\n", cnt);
+        return;
+    }
+    /*
+     * Enable counter and interrupt, and set the counter to count
+     * the event that we're interested in.
+     */
+    UINT32 intSave = LOS_IntLock();
+
+    Armv7DisableCnt(cnt);
+
+    /*
+     * Set event (if destined for PMNx counters)
+     * We only need to set the event for the cycle counter if we
+     * have the ability to perform event filtering.
+     */
+    if (cnt != ARMV7_IDX_CYCLE_COUNTER) {
+        Armv7BindEvt2Cnt(cnt, event->eventId);
+    }
+
+    /* Enable interrupt for this counter */
+    Armv7EnableCntInterrupt(cnt);
+    Armv7EnableCnt(cnt);
+    LOS_IntRestore(intSave);
+
+    PRINT_DEBUG("enabled event: %u cnt: %u\n", event->eventId, cnt);
+}
+
+STATIC VOID Armv7DisableEvent(Event *event)
+{
+    UINT32 cnt = event->counter;
+
+    if (!Armv7CntValid(cnt)) {
+        PRINT_ERR("CPU enabling wrong PMNC counter IRQ enable %u\n", cnt);
+        return;
+    }
+
+    UINT32 intSave = LOS_IntLock();
+    Armv7DisableCnt(cnt);
+    Armv7DisableCntInterrupt(cnt);
+    LOS_IntRestore(intSave);
+}
+
+
+STATIC VOID Armv7StartAllCnt(VOID)
+{
+    PRINT_DEBUG("starting pmu...\n");
+
+    /* Enable all counters */
+    UINT32 reg = Armv7PmncRead() | ARMV7_PMNC_E;
+    if (g_armv7Pmu.cntDivided) {
+        reg |= ARMV7_PMNC_D;
+    } else {
+        reg &= ~ARMV7_PMNC_D;
+    }
+
+    Armv7PmncWrite(reg);
+    HalIrqUnmask(g_pmuIrqNr[ArchCurrCpuid()]);
+}
+
+STATIC VOID Armv7StopAllCnt(VOID)
+{
+    PRINT_DEBUG("stopping pmu...\n");
+    /* Disable all counters */
+    Armv7PmncWrite(Armv7PmncRead() & ~ARMV7_PMNC_E);
+
+    HalIrqMask(g_pmuIrqNr[ArchCurrCpuid()]);
+}
+
+STATIC VOID Armv7ResetAllCnt(VOID)
+{
+    UINT32 index;
+
+    /* The counter and interrupt enable registers are unknown at reset. */
+    for (index = ARMV7_IDX_CYCLE_COUNTER; index < ARMV7_IDX_MAX_COUNTER; index++) {
+        Armv7DisableCnt(index);
+        Armv7DisableCntInterrupt(index);
+    }
+
+    /* Initialize & Reset PMNC: C and P bits and D bits */
+    UINT32 reg = ARMV7_PMNC_P | ARMV7_PMNC_C | (g_armv7Pmu.cntDivided ? ARMV7_PMNC_D : 0);
+    Armv7PmncWrite(reg);
+}
+
+STATIC VOID Armv7SetEventPeriod(Event *event)
+{
+    if (event->period != 0) {
+        PRINT_INFO("counter: %u, period: 0x%x\n", event->counter, event->period);
+        Armv7PmuSetCntPeriod(event->counter, PERIOD_CALC(event->period));
+    }
+}
+
+STATIC UINTPTR Armv7ReadEventCnt(Event *event)
+{
+    UINT32 value = 0;
+    UINT32 index = event->counter;
+
+    if (!Armv7CntValid(index)) {
+        PRINT_ERR("CPU reading wrong counter %u\n", index);
+    } else if (index == ARMV7_IDX_CYCLE_COUNTER) {
+        __asm__ volatile("mrc p15, 0, %0, c9, c13, 0" : "=r" (value));
+    } else {
+        Armv7PmuSelCnt(index);
+        __asm__ volatile("mrc p15, 0, %0, c9, c13, 2" : "=r" (value));
+    }
+
+    if (value < PERIOD_CALC(event->period)) {
+        if (Armv7PmuCntOverflowed(Armv7PmuGetOverflowStatus(), event->counter)) {
+            value += event->period;
+        }
+    } else {
+        value -= PERIOD_CALC(event->period);
+    }
+    return value;
+}
+
+STATIC const UINT32 g_armv7Map[] = {
+    [PERF_COUNT_HW_CPU_CYCLES]          = ARMV7_PERF_HW_CYCLES,
+    [PERF_COUNT_HW_INSTRUCTIONS]        = ARMV7_PERF_HW_INSTRUCTIONS,
+    [PERF_COUNT_HW_DCACHE_REFERENCES]   = ARMV7_PERF_HW_DCACHES,
+    [PERF_COUNT_HW_DCACHE_MISSES]       = ARMV7_PERF_HW_DCACHE_MISSES,
+    [PERF_COUNT_HW_ICACHE_REFERENCES]   = ARMV7_PERF_HW_ICACHES,
+    [PERF_COUNT_HW_ICACHE_MISSES]       = ARMV7_PERF_HW_ICACHE_MISSES,
+    [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_PERF_HW_BRANCHES,
+    [PERF_COUNT_HW_BRANCH_MISSES]       = ARMV7_PERF_HW_BRANCE_MISSES,
+};
+
+UINT32 Armv7PmuMapEvent(UINT32 eventType, BOOL reverse)
+{
+    if (!reverse) {  /* Common event to armv7 real event */
+        if (eventType < ARRAY_SIZE(g_armv7Map)) {
+            return g_armv7Map[eventType];
+        }
+        return eventType;
+    } else {        /* Armv7 real event to common event */
+        UINT32 i;
+        for (i = 0; i < ARRAY_SIZE(g_armv7Map); i++) {
+            if (g_armv7Map[i] == eventType) {
+                return i;
+            }
+        }
+        return PERF_HW_INVALID_EVENT_TYPE;
+    }
+}
+
+STATIC VOID Armv7PmuIrqHandler(VOID)
+{
+    UINT32 index;
+    PerfRegs regs;
+
+    PerfEvent *events = &(g_armv7Pmu.pmu.events);
+    UINT32 eventNum = events->nr;
+
+    /* Get and reset the IRQ flags */
+    UINT32 pmnc = Armv7PmuGetOverflowStatus();
+    if (!Armv7PmuOverflowed(pmnc)) {
+        return;
+    }
+
+    (VOID)memset_s(&regs, sizeof(PerfRegs), 0, sizeof(PerfRegs));
+    OsPerfFetchIrqRegs(&regs);
+
+    Armv7StopAllCnt();
+
+    for (index = 0; index < eventNum; index++) {
+        Event *event = &(events->per[index]);
+        /*
+         * We have a single interrupt for all counters. Check that
+         * each counter has overflowed before we process it.
+         */
+        if (!Armv7PmuCntOverflowed(pmnc, event->counter) || (event->period == 0)) {
+            continue;
+        }
+
+        Armv7PmuSetCntPeriod(event->counter, PERIOD_CALC(event->period));
+
+        OsPerfUpdateEventCount(event, event->period);
+        OsPerfHandleOverFlow(event, &regs);
+    }
+    Armv7StartAllCnt();
+}
+
+UINT32 OsGetPmuMaxCounter(VOID)
+{
+    return ARMV7_IDX_MAX_COUNTER;
+}
+
+UINT32 OsGetPmuCycleCounter(VOID)
+{
+    return ARMV7_IDX_CYCLE_COUNTER;
+}
+
+UINT32 OsGetPmuCounter0(VOID)
+{
+    return ARMV7_IDX_COUNTER0;
+}
+
+STATIC HwPmu g_armv7Pmu = {
+    .canDivided = TRUE,
+    .enable     = Armv7EnableEvent,
+    .disable    = Armv7DisableEvent,
+    .start      = Armv7StartAllCnt,
+    .stop       = Armv7StopAllCnt,
+    .clear      = Armv7ResetAllCnt,
+    .setPeriod  = Armv7SetEventPeriod,
+    .readCnt    = Armv7ReadEventCnt,
+    .mapEvent   = Armv7PmuMapEvent,
+};
+
+UINT32 OsHwPmuInit(VOID)
+{
+    UINT32 ret;
+    UINT32 index;
+
+    for (index = 0; index < LOSCFG_KERNEL_CORE_NUM; index++) {
+        ret = LOS_HwiCreate(g_pmuIrqNr[index], 0, 0, Armv7PmuIrqHandler, 0);
+        if (ret != LOS_OK) {
+            PRINT_ERR("pmu %u irq handler register failed\n", g_pmuIrqNr[index]);
+            return ret;
+        }
+#ifdef LOSCFG_KERNEL_SMP
+        HalIrqSetAffinity(g_pmuIrqNr[index], CPUID_TO_AFFI_MASK(index));
+#endif
+    }
+    ret = OsPerfHwInit(&g_armv7Pmu);
+    return ret;
+}

arch/arm/arm/src/smp.c

@@ -35,7 +35,6 @@
 #include "los_hw.h"
 #include "los_atomic.h"
 #include "los_arch_mmu.h"
-#include "los_init_pri.h"
 #include "gic_common.h"
 #include "los_task_pri.h"
 
@@ -55,7 +54,7 @@ VOID HalArchCpuOn(UINT32 cpuNum, ArchCpuStartFunc func, struct SmpOps *ops, VOID
 {
     struct OsCpuInit *cpuInit = &g_cpuInit[cpuNum - 1];
     UINTPTR startEntry = (UINTPTR)&reset_vector - KERNEL_VMM_BASE + SYS_MEM_BASE;
-    INT32 ret = 0;
+    INT32 ret;
 
     cpuInit->cpuStart = func;
     cpuInit->arg = arg;
@@ -94,7 +93,6 @@ VOID HalSecondaryCpuStart(VOID)
     /* store each core's hwid */
     CPU_MAP_SET(cpuid, OsHwIDGet());
     HalIrqInitPercpu();
-    OsInitCall(LOS_INIT_LEVEL_ARCH);
 
     cpuInit->cpuStart(cpuInit->arg);
 

arch/arm/gic/Makefile

@@ -31,18 +31,10 @@ include $(LITEOSTOPDIR)/config.mk
 
 MODULE_NAME := $(notdir $(shell pwd))
 
-# LOCAL_SRCS := $(wildcard *.c)
-
 ifeq ($(LOSCFG_ARCH_GIC_V2), y)
 LOCAL_SRCS := gic_v2.c
 else ifeq ($(LOSCFG_ARCH_GIC_V3), y)
 LOCAL_SRCS := gic_v3.c
 endif
 
-LOCAL_INCLUDE := \
-	-I $(LITEOSTOPDIR)/kernel/base/include \
-	-I $(LITEOSTOPDIR)/arch/arm/include \
-	-I $(LITEOSTOPDIR)/arch/arm/arm/src/include \
-
-LOCAL_FLAGS := $(LOCAL_INCLUDE)
 include $(MODULE)

arch/arm/gic/gic_v2.c

@@ -149,6 +149,9 @@ VOID HalIrqInit(VOID)
     (VOID)LOS_HwiCreate(LOS_MP_IPI_WAKEUP, 0xa0, 0, OsMpWakeHandler, 0);
     (VOID)LOS_HwiCreate(LOS_MP_IPI_SCHEDULE, 0xa0, 0, OsMpScheduleHandler, 0);
     (VOID)LOS_HwiCreate(LOS_MP_IPI_HALT, 0xa0, 0, OsMpHaltHandler, 0);
+#ifdef LOSCFG_KERNEL_SMP_CALL
+    (VOID)LOS_HwiCreate(LOS_MP_IPI_FUNC_CALL, 0xa0, 0, OsMpFuncCallHandler, 0);
+#endif
 #endif
 }
 
@@ -169,7 +172,7 @@ VOID HalIrqHandler(VOID)
 
     OsInterrupt(vector);
 
-    /* use orignal iar to do the EOI */
+    /* use original iar to do the EOI */
     GIC_REG_32(GICC_EOIR) = iar;
 }
 

arch/arm/gic/gic_v3.c

@@ -401,9 +401,12 @@ VOID HalIrqInit(VOID)
 
 #ifdef LOSCFG_KERNEL_SMP
     /* register inter-processor interrupt */
-    LOS_HwiCreate(LOS_MP_IPI_WAKEUP, 0xa0, 0, OsMpWakeHandler, 0);
-    LOS_HwiCreate(LOS_MP_IPI_SCHEDULE, 0xa0, 0, OsMpScheduleHandler, 0);
-    LOS_HwiCreate(LOS_MP_IPI_HALT, 0xa0, 0, OsMpScheduleHandler, 0);
+    (VOID)LOS_HwiCreate(LOS_MP_IPI_WAKEUP, 0xa0, 0, OsMpWakeHandler, 0);
+    (VOID)LOS_HwiCreate(LOS_MP_IPI_SCHEDULE, 0xa0, 0, OsMpScheduleHandler, 0);
+    (VOID)LOS_HwiCreate(LOS_MP_IPI_HALT, 0xa0, 0, OsMpScheduleHandler, 0);
+#ifdef LOSCFG_KERNEL_SMP_CALL
+    (VOID)LOS_HwiCreate(LOS_MP_IPI_FUNC_CALL, 0xa0, 0, OsMpFuncCallHandler, 0);
+#endif
 #endif
 }
 

arch/arm/include/perf.h

@@ -1,65 +1,61 @@
-/*
- * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this list of
- *    conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice, this list
- *    of conditions and the following disclaimer in the documentation and/or other materials
- *    provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors may be used
- *    to endorse or promote products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef _SYS_CONFIG_H
-#define _SYS_CONFIG_H
-
-
-#ifdef __cplusplus
-#if __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-#endif /* __cplusplus */
-
-#ifndef LOSCFG_MACRO_CONFIG
-#define LOSCFG_MACRO_CONFIG
-
-#ifdef LOSCFG_LIB_LIBC
-#define CONFIG_STRERROR
-#endif
-
-#ifdef LOSCFG_NET_LWIP_SACK
-#define LWIP_BSD_API 1
-#endif
-
-#ifdef LOSCFG_DRIVERS_USB
-#define SUPPORT_LOS_USB_NEW_DRIVER
-#define USB_DEBUG_VAR 5
-#endif
-#endif
-
-#ifdef __cplusplus
-#if __cplusplus
-}
-#endif /* __cplusplus */
-#endif /* __cplusplus */
-
-#endif /* _SYS_CONFIG_H */
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PERF_H
+#define _PERF_H
+
+#include "los_typedef.h"
+
+#ifdef __cplusplus
+#if __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+#define OsPerfArchFetchCallerRegs(regs) \
+    do { \
+        (regs)->pc = (UINTPTR)__builtin_return_address(0); \
+        (regs)->fp = (UINTPTR)__builtin_frame_address(0);  \
+    } while (0)
+
+#define OsPerfArchFetchIrqRegs(regs, tcb) \
+    do { \
+        (regs)->pc = (tcb)->pc; \
+        (regs)->fp = (tcb)->fp; \
+    } while (0)
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+#endif /* _PERF_H */

bsd/Makefile

@@ -41,14 +41,6 @@ LOCAL_SRCS += $(wildcard crypto/rijndael/*.c) \
               $(wildcard crypto/sha2/*.c) \
               $(wildcard dev/random/*.c) \
               $(wildcard libkern/*.c)
-
 endif
 
-LOCAL_INCLUDE := \
-        -I $(LITEOSTOPDIR)/kernel/base/include \
-        -I $(LITEOSTOPDIR)/bsd \
-        -I $(LITEOSTOPDIR)/bsd/kern \
-
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
-
 include $(MODULE)

bsd/compat/linuxkpi/Makefile

@@ -37,10 +37,4 @@ ifneq ($(LOSCFG_HRTIMER_ENABLE), y)
 LOCAL_SRCS := $(filter-out src/linux_hrtimer.c, $(LOCAL_SRCS))
 endif
 
-LOCAL_INCLUDE := \
-        -I $(LITEOSTOPDIR)/kernel/base/include \
-        -I $(LITEOSTOPDIR)/bsd/compat/linuxkpi/include
-
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
-
 include $(MODULE)

bsd/dev/usb/BUILD.gn

@@ -137,14 +137,13 @@ kernel_module(module_name) {
     ]
   }
 
-  configs += [
-    "$HDFTOPDIR:hdf_config"
-  ]
+  configs += [ "$HDFTOPDIR:hdf_config" ]
 
   public_configs = [ ":public" ]
 }
 
 config("public") {
+  defines = [ "USB_DEBUG_VAR=5" ]
   include_dirs = [ "." ]
   include_dirs += [ "$LITEOSTHIRDPARTY/FreeBSD/sys/dev/evdev" ]
 }

bsd/dev/usb/Makefile

@@ -135,6 +135,4 @@ LOCAL_SRCS += $(INPUT_SRC)/uhid.c  \
               $(CORE_SRC)/usb_hid.c
 endif
 
-LOCAL_FLAGS += $(LITEOS_GCOV_OPTS)
-
 include $(HDF_DRIVER)

compat/posix/Makefile

@@ -33,10 +33,8 @@ MODULE_NAME := $(notdir $(shell pwd))
 
 LOCAL_SRCS :=  $(wildcard src/*.c)
 
-LOCAL_INCLUDE := \
-    -I $(LITEOSTOPDIR)/compat/posix/src \
-    -I $(LITEOSTOPDIR)/kernel/base/include \
+LOCAL_INCLUDE := -I $(LITEOSTOPDIR)/compat/posix/src
 
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
+LOCAL_FLAGS := $(LOCAL_INCLUDE)
 
 include $(MODULE)

compat/posix/include/time_posix.h

@@ -86,6 +86,7 @@ STATIC INLINE VOID OsTick2TimeSpec(struct timespec *tp, UINT32 tick)
 }
 
 int OsTimerCreate(clockid_t, struct ksigevent *__restrict, timer_t *__restrict);
+void OsAdjTime(void);
 
 #ifdef __cplusplus
 #if __cplusplus

compat/posix/src/misc.c

@@ -40,6 +40,7 @@
 #include "los_process_pri.h"
 #include "los_hw.h"
 
+static struct rlimit g_defaultLimit = { 0 };
 /*
  * Supply some suitable values for constants that may not be present
  * in all configurations.
@@ -154,7 +155,9 @@ pid_t getpid(void)
 
 int getrlimit(int resource, struct rlimit *rlim)
 {
+    unsigned int intSave;
     LosProcessCB *pcb = OsCurrProcessGet();
+    struct rlimit *resourceLimit = pcb->resourceLimit;
 
     switch (resource) {
         case RLIMIT_NOFILE:
@@ -163,8 +166,15 @@ int getrlimit(int resource, struct rlimit *rlim)
         default:
             return -EINVAL;
     }
-    rlim->rlim_cur = pcb->pl_rlimit[resource].rlim_cur;
-    rlim->rlim_max = pcb->pl_rlimit[resource].rlim_max;
+
+    if (resourceLimit == NULL) {
+        resourceLimit = &g_defaultLimit;
+    }
+
+    SCHEDULER_LOCK(intSave);
+    rlim->rlim_cur = resourceLimit[resource].rlim_cur;
+    rlim->rlim_max = resourceLimit[resource].rlim_max;
+    SCHEDULER_UNLOCK(intSave);
 
     return 0;
 }
@@ -175,6 +185,8 @@ int getrlimit(int resource, struct rlimit *rlim)
 #endif
 int setrlimit(int resource, const struct rlimit *rlim)
 {
+    unsigned int intSave;
+    struct rlimit *resourceLimit = NULL;
     LosProcessCB *pcb = OsCurrProcessGet();
 
     if (rlim->rlim_cur > rlim->rlim_max) {
@@ -194,8 +206,23 @@ int setrlimit(int resource, const struct rlimit *rlim)
         default:
             return -EINVAL;
     }
-    pcb->pl_rlimit[resource].rlim_cur = rlim->rlim_cur;
-    pcb->pl_rlimit[resource].rlim_max = rlim->rlim_max;
 
+    if (pcb->resourceLimit == NULL) {
+        resourceLimit = LOS_MemAlloc((VOID *)m_aucSysMem0, RLIM_NLIMITS * sizeof(struct rlimit));
+        if (resourceLimit == NULL) {
+            return -EINVAL;
+        }
+    }
+
+    SCHEDULER_LOCK(intSave);
+    if (pcb->resourceLimit == NULL) {
+        pcb->resourceLimit = resourceLimit;
+        resourceLimit = NULL;
+    }
+    pcb->resourceLimit[resource].rlim_cur = rlim->rlim_cur;
+    pcb->resourceLimit[resource].rlim_max = rlim->rlim_max;
+    SCHEDULER_UNLOCK(intSave);
+
+    (VOID)LOS_MemFree((VOID *)m_aucSysMem0, resourceLimit);
     return 0;
-}
+}

compat/posix/src/pthread.c

@@ -248,7 +248,7 @@ int pthread_create(pthread_t *thread, const pthread_attr_t *attr,
         taskInitParam.uwResved = LOS_TASK_STATUS_DETACHED;
     } else {
         /* Set the pthread default joinable */
-        taskInitParam.uwResved = 0;
+        taskInitParam.uwResved = LOS_TASK_ATTR_JOINABLE;
     }
 
     PthreadReap();

compat/posix/src/stdlib.c

@@ -47,7 +47,7 @@ void srand(unsigned s)
 
 int rand(void)
 {
-   return random();
+    return random();
 }
 
 void _exit(int status)

compat/posix/src/time.c

@@ -509,7 +509,11 @@ static int ProcessGetCputime(clockid_t clockID, struct timespec *ats)
     }
 
     SCHEDULER_LOCK(intSave);
-    runtime = spcb->processCpup.allTime;
+    if (spcb->processCpup == NULL) {
+        SCHEDULER_UNLOCK(intSave);
+        return -EINVAL;
+    }
+    runtime = spcb->processCpup->allTime;
     SCHEDULER_UNLOCK(intSave);
 
     ats->tv_sec = runtime / OS_SYS_NS_PER_SECOND;
@@ -756,7 +760,7 @@ static VOID SwtmrProc(UINTPTR tmrArg)
     }
     return;
 EXIT:
-    PRINT_ERR("Dsipatch signals failed!, ret: %d\r\n", ret);
+    PRINT_ERR("Dispatch signals failed!, ret: %d\r\n", ret);
     return;
 }
 

config.mk

@@ -38,7 +38,7 @@ LITEOS_CXXOPTS  := $(LITEOS_CXXOPTS_BASE)
 LITEOS_INCLUDE  := $(LITEOS_KERNEL_INCLUDE)  $(LITEOS_EXTKERNEL_INCLUDE) \
                    $(LITEOS_COMPAT_INCLUDE)  $(LITEOS_FS_INCLUDE) \
                    $(LITEOS_NET_INCLUDE)     $(LITEOS_LIB_INCLUDE) \
-                   $(LITEOS_DRIVERS_INCLUDE) $(LOSCFG_TOOLS_DEBUG_INCLUDE) \
+                   $(LITEOS_DRIVERS_INCLUDE) $(LITEOS_TOOLS_DEBUG_INCLUDE) \
                    $(LITEOS_PLATFORM_INCLUDE) $(LITEOS_DFX_INCLUDE) \
                    $(LITEOS_SECURITY_INCLUDE)
 LITEOS_LIBDEP   := $(LITEOS_BASELIB)
@@ -52,10 +52,17 @@ LITEOS_LDFLAGS  := $(LITEOS_LD_OPTS)     $(LITEOS_LD_PATH) \
                    $(LITEOS_LD_SCRIPT)
 
 # clear all local variables
-LOCAL_FLAGS    :=
-LOCAL_CFLAGS   :=
-LOCAL_CPPFLAGS :=
-LOCAL_ASFLAGS  :=
-LOCAL_SRCS     :=
-LOCAL_CHS      :=
-LOCAL_CPPHS    :=
+LOCAL_FLAGS    =
+LOCAL_CFLAGS   =
+LOCAL_CPPFLAGS =
+LOCAL_ASFLAGS  =
+LOCAL_SRCS     =
+LOCAL_CHS      =
+LOCAL_CPPHS    =
+
+# basic build flags
+CFLAGS    := $(LITEOS_CFLAGS)
+CXXFLAGS  := $(LITEOS_CXXFLAGS)
+ASFLAGS   := $(LITEOS_ASFLAGS)
+LDFLAGS   := $(LITEOS_LDFLAGS)
+ARFLAGS   := rc

drivers/BUILD.gn

@@ -29,28 +29,10 @@
 
 import("//kernel/liteos_a/liteos.gni")
 
-group("drivers") {
-  deps = [
-    "block/disk",
-    "char/bch",
-    "char/mem",
-    "char/quickstart",
-    "char/random",
-    "char/trace",
-    "char/video",
-    "mtd/multi_partition",
-  ]
-}
-
-config("public") {
-  configs = [
-    "block/disk:public",
-    "char/bch:public",
-    "char/mem:public",
-    "char/quickstart:public",
-    "char/random:public",
-    "char/video:public",
-    "char/trace:public",
-    "mtd/multi_partition:public",
+module_group("drivers") {
+  modules = [
+    "block",
+    "char",
+    "mtd",
   ]
 }

drivers/Kconfig

@@ -0,0 +1,21 @@
+config DRIVERS
+    bool "Enable Driver"
+    default y
+    help
+      Answer Y to enable LiteOS support driver.
+
+source "bsd/dev/usb/Kconfig"
+source "../../drivers/adapter/khdf/liteos/Kconfig"
+
+# Device driver Kconfig import
+source "$(DEVICE_PATH)/drivers/Kconfig"
+
+source "drivers/char/mem/Kconfig"
+source "drivers/char/quickstart/Kconfig"
+source "drivers/char/random/Kconfig"
+source "drivers/char/video/Kconfig"
+source "drivers/char/trace/Kconfig"
+source "drivers/char/perf/Kconfig"
+
+source "../../drivers/liteos/tzdriver/Kconfig"
+source "../../drivers/liteos/hievent/Kconfig"

drivers/block/BUILD.gn

@@ -0,0 +1,34 @@
+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_group("block") {
+  modules = [ "disk" ]
+}

drivers/block/disk/Makefile

@@ -33,8 +33,4 @@ MODULE_NAME := $(notdir $(shell pwd))
 
 LOCAL_SRCS :=  $(wildcard src/*.c)
 
-LOCAL_INCLUDE := \
-
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
-
 include $(MODULE)

drivers/block/disk/include/disk.h

@@ -165,6 +165,10 @@ extern "C" {
 #define DISK_ATA_GET_MODEL      21  /* Get model name */
 #define DISK_ATA_GET_SN         22  /* Get serial number */
 
+#ifdef LOSCFG_FS_FAT_CACHE
+#define DISK_DIRECT_BUFFER_SIZE 4   /* los_disk direct io buffer when bcache is off */
+#endif
+
 typedef enum _disk_status_ {
     STAT_UNUSED,
     STAT_INUSED,
@@ -187,6 +191,9 @@ typedef struct _los_disk_ {
     CHAR *disk_name;
     LOS_DL_LIST head;       /* link head of all the partitions */
     struct pthread_mutex disk_mutex;
+#ifndef LOSCFG_FS_FAT_CACHE
+    UINT8 *buff;
+#endif
 } los_disk;
 
 typedef struct _los_part_ {

drivers/block/disk/src/disk.c

@@ -36,6 +36,10 @@
 #include "sys/mount.h"
 #include "linux/spinlock.h"
 #include "path_cache.h"
+#ifndef LOSCFG_FS_FAT_CACHE
+#include "los_vm_common.h"
+#include "user_copy.h"
+#endif
 
 los_disk g_sysDisk[SYS_MAX_DISK];
 los_part g_sysPart[SYS_MAX_PART];
@@ -799,6 +803,78 @@ INT32 DiskPartitionRegister(los_disk *disk)
     return ENOERR;
 }
 
+#ifndef LOSCFG_FS_FAT_CACHE
+static INT32 disk_read_directly(los_disk *disk, VOID *buf, UINT64 sector, UINT32 count)
+{
+    INT32 result = VFS_ERROR;
+    struct block_operations *bops = (struct block_operations *)((struct drv_data *)disk->dev->data)->ops;
+    if ((bops == NULL) || (bops->read == NULL)) {
+        return VFS_ERROR;
+    }
+    if (LOS_IsUserAddressRange((VADDR_T)buf, count * disk->sector_size)) {
+        UINT32 cnt = 0;
+        UINT8 *buffer = disk->buff;
+        for (; count != 0; count -= cnt) {
+            cnt = (count > DISK_DIRECT_BUFFER_SIZE) ? DISK_DIRECT_BUFFER_SIZE : count;
+            result = bops->read(disk->dev, buffer, sector, cnt);
+            if (result == (INT32)cnt) {
+                result = ENOERR;
+            } else {
+                break;
+            }
+            if (LOS_CopyFromKernel(buf, disk->sector_size * cnt, buffer, disk->sector_size * cnt)) {
+                result = VFS_ERROR;
+                break;
+            }
+            buf = (UINT8 *)buf + disk->sector_size * cnt;
+            sector += cnt;
+        }
+    } else {
+        result = bops->read(disk->dev, buf, sector, count);
+        if (result == count) {
+            result = ENOERR;
+        }
+    }
+
+    return result;
+}
+
+static INT32 disk_write_directly(los_disk *disk, const VOID *buf, UINT64 sector, UINT32 count)
+{
+    struct block_operations *bops = (struct block_operations *)((struct drv_data *)disk->dev->data)->ops;
+    INT32 result = VFS_ERROR;
+    if ((bops == NULL) || (bops->read == NULL)) {
+        return VFS_ERROR;
+    }
+    if (LOS_IsUserAddressRange((VADDR_T)buf, count * disk->sector_size)) {
+        UINT32 cnt = 0;
+        UINT8 *buffer = disk->buff;
+        for (; count != 0; count -= cnt) {
+            cnt = (count > DISK_DIRECT_BUFFER_SIZE) ? DISK_DIRECT_BUFFER_SIZE : count;
+            if (LOS_CopyToKernel(buffer, disk->sector_size * cnt, buf, disk->sector_size * cnt)) {
+                result = VFS_ERROR;
+                break;
+            }
+            result = bops->write(disk->dev, buffer, sector, cnt);
+            if (result == (INT32)cnt) {
+                result = ENOERR;
+            } else {
+                break;
+            }
+            buf = (UINT8 *)buf + disk->sector_size * cnt;
+            sector += cnt;
+        }
+    } else {
+        result = bops->write(disk->dev, buf, sector, count);
+        if (result == count) {
+            result = ENOERR;
+        }
+    }
+
+    return result;
+}
+#endif
+
 INT32 los_disk_read(INT32 drvID, VOID *buf, UINT64 sector, UINT32 count, BOOL useRead)
 {
 #ifdef LOSCFG_FS_FAT_CACHE
@@ -837,21 +913,14 @@ INT32 los_disk_read(INT32 drvID, VOID *buf, UINT64 sector, UINT32 count, BOOL us
             PRINT_ERR("los_disk_read read err = %d, sector = %llu, len = %u\n", result, sector, len);
         }
     } else {
-#endif
+        result = VFS_ERROR;
+    }
+#else
     if (disk->dev == NULL) {
         goto ERROR_HANDLE;
     }
-    struct block_operations *bops = (struct block_operations *)((struct drv_data *)disk->dev->data)->ops;
-    if ((bops != NULL) && (bops->read != NULL)) {
-        result = bops->read(disk->dev, (UINT8 *)buf, sector, count);
-        if (result == (INT32)count) {
-            result = ENOERR;
-        }
-    }
-#ifdef LOSCFG_FS_FAT_CACHE
-    }
+    result = disk_read_directly(disk, buf, sector, count);
 #endif
-
     if (result != ENOERR) {
         goto ERROR_HANDLE;
     }
@@ -900,18 +969,14 @@ INT32 los_disk_write(INT32 drvID, const VOID *buf, UINT64 sector, UINT32 count)
             PRINT_ERR("los_disk_write write err = %d, sector = %llu, len = %u\n", result, sector, len);
         }
     } else {
-#endif
-    struct block_operations *bops = (struct block_operations *)((struct drv_data *)disk->dev->data)->ops;
-    if ((bops != NULL) && (bops->write != NULL)) {
-        result = bops->write(disk->dev, (UINT8 *)buf, sector, count);
-        if (result == (INT32)count) {
-            result = ENOERR;
-        }
+        result = VFS_ERROR;
     }
-#ifdef LOSCFG_FS_FAT_CACHE
+#else
+    if (disk->dev == NULL) {
+        goto ERROR_HANDLE;
     }
+    result = disk_write_directly(disk, buf, sector, count);
 #endif
-
     if (result != ENOERR) {
         goto ERROR_HANDLE;
     }
@@ -998,7 +1063,7 @@ INT32 los_part_read(INT32 pt, VOID *buf, UINT64 sector, UINT32 count, BOOL useRe
     }
 
     if (count > part->sector_count) {
-        PRINT_ERR("los_part_read failed, invaild count, count = %u\n", count);
+        PRINT_ERR("los_part_read failed, invalid count, count = %u\n", count);
         goto ERROR_HANDLE;
     }
 
@@ -1007,7 +1072,7 @@ INT32 los_part_read(INT32 pt, VOID *buf, UINT64 sector, UINT32 count, BOOL useRe
         if ((disk->sector_count - part->sector_start) > sector) {
             sector += part->sector_start;
         } else {
-            PRINT_ERR("los_part_read failed, invaild sector, sector = %llu\n", sector);
+            PRINT_ERR("los_part_read failed, invalid sector, sector = %llu\n", sector);
             goto ERROR_HANDLE;
         }
     }
@@ -1054,7 +1119,7 @@ INT32 los_part_write(INT32 pt, const VOID *buf, UINT64 sector, UINT32 count)
     }
 
     if (count > part->sector_count) {
-        PRINT_ERR("los_part_write failed, invaild count, count = %u\n", count);
+        PRINT_ERR("los_part_write failed, invalid count, count = %u\n", count);
         goto ERROR_HANDLE;
     }
 
@@ -1063,7 +1128,7 @@ INT32 los_part_write(INT32 pt, const VOID *buf, UINT64 sector, UINT32 count)
         if ((disk->sector_count - part->sector_start) > sector) {
             sector += part->sector_start;
         } else {
-            PRINT_ERR("los_part_write failed, invaild sector, sector = %llu\n", sector);
+            PRINT_ERR("los_part_write failed, invalid sector, sector = %llu\n", sector);
             goto ERROR_HANDLE;
         }
     }
@@ -1153,7 +1218,8 @@ ERROR_HANDLE:
 
 INT32 los_disk_cache_clear(INT32 drvID)
 {
-    INT32 result;
+    INT32 result = ENOERR;
+#ifdef LOSCFG_FS_FAT_CACHE
     los_part *part = get_part(drvID);
     los_disk *disk = NULL;
 
@@ -1161,7 +1227,7 @@ INT32 los_disk_cache_clear(INT32 drvID)
         return VFS_ERROR;
     }
     result = OsSdSync(part->disk_id);
-    if (result != 0) {
+    if (result != ENOERR) {
         PRINTK("[ERROR]disk_cache_clear SD sync failed!\n");
         return result;
     }
@@ -1174,7 +1240,7 @@ INT32 los_disk_cache_clear(INT32 drvID)
     DISK_LOCK(&disk->disk_mutex);
     result = BcacheClearCache(disk->bcache);
     DISK_UNLOCK(&disk->disk_mutex);
-
+#endif
     return result;
 }
 
@@ -1324,6 +1390,10 @@ static INT32 DiskDeinit(los_disk *disk)
 
 #ifdef LOSCFG_FS_FAT_CACHE
     DiskCacheDeinit(disk);
+#else
+    if (disk->buff != NULL) {
+        free(disk->buff);
+    }
 #endif
 
     disk->dev = NULL;
@@ -1344,12 +1414,15 @@ static INT32 DiskDeinit(los_disk *disk)
     return ENOERR;
 }
 
-static VOID OsDiskInitSub(const CHAR *diskName, INT32 diskID, los_disk *disk,
-                          struct geometry *diskInfo, struct Vnode *blkDriver)
+static UINT32 OsDiskInitSub(const CHAR *diskName, INT32 diskID, los_disk *disk,
+                            struct geometry *diskInfo, struct Vnode *blkDriver)
 {
     pthread_mutexattr_t attr;
 #ifdef LOSCFG_FS_FAT_CACHE
     OsBcache *bc = DiskCacheInit((UINT32)diskID, diskInfo, blkDriver);
+    if (bc == NULL) {
+        return VFS_ERROR;
+    }
     disk->bcache = bc;
 #endif
 
@@ -1358,6 +1431,16 @@ static VOID OsDiskInitSub(const CHAR *diskName, INT32 diskID, los_disk *disk,
     (VOID)pthread_mutex_init(&disk->disk_mutex, &attr);
 
     DiskStructInit(diskName, diskID, diskInfo, blkDriver, disk);
+
+#ifndef LOSCFG_FS_FAT_CACHE
+    disk->buff = malloc(diskInfo->geo_sectorsize * DISK_DIRECT_BUFFER_SIZE);
+    if (disk->buff == NULL) {
+        PRINT_ERR("OsDiskInitSub: direct buffer of disk init failed\n");
+        return VFS_ERROR;
+    }
+#endif
+
+    return ENOERR;
 }
 
 INT32 los_disk_init(const CHAR *diskName, const struct block_operations *bops,
@@ -1382,14 +1465,12 @@ INT32 los_disk_init(const CHAR *diskName, const struct block_operations *bops,
     ret = VnodeLookup(diskName, &blkDriver, 0);
     if (ret < 0) {
         VnodeDrop();
-        PRINT_ERR("disk_init : find %s fail!\n", diskName);
         ret = ENOENT;
         goto DISK_FIND_ERROR;
     }
     struct block_operations *bops2 = (struct block_operations *)((struct drv_data *)blkDriver->data)->ops;
 
-    if ((bops2 == NULL) || (bops2->geometry == NULL) ||
-        (bops2->geometry(blkDriver, &diskInfo) != 0)) {
+    if ((bops2 == NULL) || (bops2->geometry == NULL) || (bops2->geometry(blkDriver, &diskInfo) != 0)) {
         goto DISK_BLKDRIVER_ERROR;
     }
 
@@ -1397,7 +1478,12 @@ INT32 los_disk_init(const CHAR *diskName, const struct block_operations *bops,
         goto DISK_BLKDRIVER_ERROR;
     }
 
-    OsDiskInitSub(diskName, diskID, disk, &diskInfo, blkDriver);
+    ret = OsDiskInitSub(diskName, diskID, disk, &diskInfo, blkDriver);
+    if (ret != ENOERR) {
+        (VOID)DiskDeinit(disk);
+        VnodeDrop();
+        return VFS_ERROR;
+    }
     VnodeDrop();
     if (DiskDivideAndPartitionRegister(info, disk) != ENOERR) {
         (VOID)DiskDeinit(disk);

drivers/char/BUILD.gn

@@ -0,0 +1,42 @@
+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_group("char") {
+  modules = [
+    "bch",
+    "mem",
+    "perf",
+    "quickstart",
+    "random",
+    "trace",
+    "video",
+  ]
+}

drivers/char/bch/Makefile

@@ -34,9 +34,8 @@ MODULE_NAME := $(notdir $(shell pwd))
 LOCAL_SRCS :=  $(wildcard $(LITEOSTHIRDPARTY)/NuttX/drivers/bch/*.c)
 
 LOCAL_INCLUDE := \
-	-I $(LITEOSTHIRDPARTY)/NuttX/drivers/bch \
-	-I $(LITEOSTOPDIR)/fs/include \
+	-I $(LITEOSTHIRDPARTY)/NuttX/drivers/bch
 
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
+LOCAL_FLAGS := $(LOCAL_INCLUDE)
 
 include $(MODULE)

drivers/char/perf/BUILD.gn

@@ -0,0 +1,42 @@
+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_switch = defined(LOSCFG_DRIVERS_PERF)
+module_name = "perf_dev"
+kernel_module(module_name) {
+  sources = [ "src/perf.c" ]
+
+  public_configs = [ ":public" ]
+}
+
+config("public") {
+  include_dirs = [ "include" ]
+}

drivers/char/perf/Kconfig

@@ -0,0 +1,6 @@
+config DRIVERS_PERF
+    bool "Enable PERF DRIVER"
+    default y
+    depends on DRIVERS && FS_VFS && KERNEL_PERF
+    help
+      Answer Y to enable LiteOS support perf in userspace.

drivers/char/perf/Makefile

@@ -0,0 +1,36 @@
+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+include $(LITEOSTOPDIR)/config.mk
+
+MODULE_NAME := perf_dev
+
+LOCAL_SRCS :=  $(wildcard src/*.c)
+
+include $(MODULE)

drivers/char/perf/include/los_dev_perf.h

@@ -29,10 +29,8 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef _LOS_TIMER_PRI_H
-#define _LOS_TIMER_PRI_H
-
-#include "los_typedef.h"
+#ifndef __LOS_DEV_PERF_H__
+#define __LOS_DEV_PERF_H__
 
 #ifdef __cplusplus
 #if __cplusplus
@@ -40,11 +38,12 @@ extern "C" {
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-extern VOID OsAdjTime(VOID);
+int DevPerfRegister(void);
 
 #ifdef __cplusplus
 #if __cplusplus
 }
 #endif /* __cplusplus */
 #endif /* __cplusplus */
-#endif /* _LOS_TIMER_PRI_H */
+
+#endif

drivers/char/perf/src/perf.c

@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "fcntl.h"
+#include "user_copy.h"
+#include "sys/ioctl.h"
+#include "fs/driver.h"
+#include "los_dev_perf.h"
+#include "los_perf.h"
+#include "los_init.h"
+
+#define PERF_DRIVER "/dev/perf"
+#define PERF_DRIVER_MODE 0666
+
+/* perf ioctl */
+#define PERF_IOC_MAGIC     'T'
+#define PERF_START         _IO(PERF_IOC_MAGIC, 1)
+#define PERF_STOP          _IO(PERF_IOC_MAGIC, 2)
+
+static int PerfOpen(struct file *filep)
+{
+    (void)filep;
+    return 0;
+}
+
+static int PerfClose(struct file *filep)
+{
+    (void)filep;
+    return 0;
+}
+
+static ssize_t PerfRead(struct file *filep, char *buffer, size_t buflen)
+{
+    /* perf record buffer read */
+    (void)filep;
+    int ret;
+    int realLen;
+
+    char *records = LOS_MemAlloc(m_aucSysMem0, buflen);
+    if (records == NULL) {
+        return -ENOMEM;
+    }
+
+    realLen = LOS_PerfDataRead(records, buflen); /* get sample data */
+    if (realLen == 0) {
+        PRINT_ERR("Perf read failed, check whether perf is configured to sample mode.\n");
+        ret = -EINVAL;
+        goto EXIT;
+    }
+
+    ret = LOS_CopyFromKernel((void *)buffer, buflen, (void *)records, realLen);
+    if (ret != 0) {
+        ret = -EINVAL;
+        goto EXIT;
+    }
+
+    ret = realLen;
+EXIT:
+    LOS_MemFree(m_aucSysMem0, records);
+    return ret;
+}
+
+static ssize_t PerfConfig(struct file *filep, const char *buffer, size_t buflen)
+{
+    (void)filep;
+    int ret;
+    PerfConfigAttr attr = {0};
+    int attrlen = sizeof(PerfConfigAttr);
+
+    if (buflen != attrlen) {
+        PRINT_ERR("PerfConfigAttr is %d bytes not %d\n", attrlen, buflen);
+        return -EINVAL;
+    }
+
+    ret = LOS_CopyToKernel(&attr, attrlen, buffer, buflen);
+    if (ret != 0) {
+        return -EINVAL;
+    }
+
+    ret = LOS_PerfConfig(&attr);
+    if (ret != LOS_OK) {
+        PRINT_ERR("perf config error %u\n", ret);
+        return -EINVAL;
+    }
+
+    return 0;
+}
+
+static int PerfIoctl(struct file *filep, int cmd, unsigned long arg)
+{
+    (void)filep;
+    switch (cmd) {
+        case PERF_START:
+            LOS_PerfStart((UINT32)arg);
+            break;
+        case PERF_STOP:
+            LOS_PerfStop();
+            break;
+        default:
+            PRINT_ERR("Unknown perf ioctl cmd:%d\n", cmd);
+            return -EINVAL;
+    }
+    return 0;
+}
+
+static const struct file_operations_vfs g_perfDevOps = {
+    PerfOpen,        /* open */
+    PerfClose,       /* close */
+    PerfRead,        /* read */
+    PerfConfig,      /* write */
+    NULL,            /* seek */
+    PerfIoctl,       /* ioctl */
+    NULL,            /* mmap */
+#ifndef CONFIG_DISABLE_POLL
+    NULL,            /* poll */
+#endif
+    NULL,            /* unlink */
+};
+
+int DevPerfRegister(void)
+{
+    return register_driver(PERF_DRIVER, &g_perfDevOps, PERF_DRIVER_MODE, 0); /* 0666: file mode */
+}
+
+LOS_MODULE_INIT(DevPerfRegister, LOS_INIT_LEVEL_KMOD_EXTENDED);

drivers/char/random/Kconfig

@@ -5,7 +5,7 @@ config DRIVERS_RANDOM
     help
         Answer Y to support random.
 config HW_RANDOM_ENABLE
-    depends on DRIVERS_RANDOM && (PLATFORM_HI3518EV300 || PLATFORM_HI3516CV300 || PLATFORM_HI3516DV300 || PLATFORM_HI3556V200)
+    depends on DRIVERS_RANDOM && (PLATFORM_HI3518EV300 || PLATFORM_HI3516CV300 || PLATFORM_HI3516DV300 || PLATFORM_HI3556V200 || PLATFORM_QEMU_ARM_VIRT_CA7)
     bool "Select hw random"
     default y
     help

drivers/char/random/Makefile

@@ -37,9 +37,4 @@ ifdef LOSCFG_HW_RANDOM_ENABLE
 LOCAL_SRCS += $(wildcard src/random_hw.c)
 endif
 
-LOCAL_INCLUDE := -I $(LITEOSTOPDIR)/drivers/char/random/include \
-                 -I $(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH)/include
-
-LOCAL_FLAGS := $(LOCAL_INCLUDE)
-
 include $(MODULE)

drivers/char/trace/Makefile

@@ -35,6 +35,6 @@ LOCAL_SRCS :=  $(wildcard src/*.c)
 
 LOCAL_INCLUDE := -I $(LITEOSTOPDIR)/drivers/char/trace/include
 
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
+LOCAL_FLAGS := $(LOCAL_INCLUDE)
 
 include $(MODULE)

drivers/mtd/BUILD.gn

@@ -0,0 +1,34 @@
+# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_a/liteos.gni")
+
+module_group("mtd") {
+  modules = [ "multi_partition" ]
+}

drivers/mtd/multi_partition/BUILD.gn

@@ -37,10 +37,7 @@ kernel_module(module_name) {
     "src/mtd_shellcmd.c",
   ]
 
-  include_dirs = [
-    "$LITEOSTOPDIR/fs/jffs2/include",
-    "//device/hisilicon/drivers/include/mtd/common/include",
-  ]
+  include_dirs = [ "$LITEOSTOPDIR/fs/jffs2/include" ]
 
   if (defined(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7)) {
     include_dirs += [ "//device/qemu/drivers/cfiflash" ]

drivers/mtd/multi_partition/Makefile

@@ -34,14 +34,12 @@ MODULE_NAME := $(notdir $(shell pwd))
 LOCAL_SRCS :=  $(wildcard src/*.c)
 
 LOCAL_INCLUDE := \
-    -I $(LITEOSTOPDIR)/fs/jffs2/include \
-    -I $(LITEOSTOPDIR)/drivers/mtd/multi_partition/include \
-    -I $(LITEOSTOPDIR)/../../device/hisilicon/drivers/include/mtd/common/include
+    -I $(LITEOSTOPDIR)/fs/jffs2/include
 
 ifeq ($(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7), y)
 LOCAL_INCLUDE += -I $(LITEOSTOPDIR)/../../device/qemu/drivers/cfiflash
 endif
 
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
+LOCAL_FLAGS := $(LOCAL_INCLUDE)
 
 include $(MODULE)

drivers/mtd/multi_partition/src/mtd_partition.c

@@ -37,7 +37,7 @@
 #include "los_config.h"
 #include "los_mux.h"
 #include "fs/driver.h"
-#include "mtd_common.h"
+#include "mtd/mtd_legacy_lite.h"
 
 #ifdef LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7
 #include "cfiflash.h"

fs/BUILD.gn

@@ -35,9 +35,11 @@ group("fs") {
     "fat/virpart",
     "jffs2",
     "nfs",
+    "patchfs",
     "proc",
     "ramfs",
     "romfs",
+    "rootfs",
     "vfs",
     "vfs/bcache",
     "zpfs",
@@ -52,5 +54,7 @@ config("public") {
     "fat:public",
     "fat/virpart:public",
     "proc:public",
+    "patchfs:public",
+    "rootfs:public",
   ]
 }

fs/Kconfig

@@ -0,0 +1,10 @@
+source "fs/vfs/Kconfig"
+source "fs/fat/Kconfig"
+source "fs/ramfs/Kconfig"
+source "fs/romfs/Kconfig"
+source "fs/nfs/Kconfig"
+source "fs/proc/Kconfig"
+source "fs/jffs2/Kconfig"
+source "fs/rootfs/Kconfig"
+source "fs/patchfs/Kconfig"
+source "fs/zpfs/Kconfig"

fs/fat/Kconfig

@@ -27,7 +27,7 @@ config FS_FAT_CHINESE
       Answer Y to enable LiteOS fat filesystem support Chinese.
 
 config FS_FAT_VIRTUAL_PARTITION
-    bool "Enabel Virtual Partition"
+    bool "Enable Virtual Partition"
     default n
     depends on FS_FAT
 

fs/fat/Makefile

@@ -34,13 +34,9 @@ MODULE_NAME := $(notdir $(shell pwd))
 LOCAL_SRCS := $(wildcard os_adapt/*.c)
 LOCAL_SRCS += $(wildcard $(LITEOSTHIRDPARTY)/FatFs/source/*.c)
 
-LOCAL_INCLUDE := \
-	-I $(LITEOSTHIRDPARTY)/FatFs/source \
-	-I $(LITEOSTOPDIR)/fs/fat/os_adapt \
-	-I $(LITEOSTOPDIR)/fs/fat/virpart/include \
-	-I $(LITEOSTOPDIR)/fs/vfs \
+LOCAL_INCLUDE := -I $(LITEOSTOPDIR)/fs/fat/os_adapt
 
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
+LOCAL_FLAGS := $(LOCAL_INCLUDE)
 
 include $(MODULE)
 

fs/fat/os_adapt/fatfs.c

@@ -34,6 +34,7 @@
 #include "ff.h"
 #include "disk_pri.h"
 #include "diskio.h"
+#include "fs/file.h"
 #include "fs/fs.h"
 #include "fs/dirent_fs.h"
 #include "fs/mount.h"
@@ -47,6 +48,7 @@
 #include "user_copy.h"
 #include "los_vm_filemap.h"
 #include "los_hash.h"
+#include "los_vm_common.h"
 #include <time.h>
 #include <errno.h>
 #include <dirent.h>
@@ -604,7 +606,7 @@ int fatfs_open(struct file *filep)
     FIL *fp;
     int ret;
 
-    fp = (FIL *)zalloc(sizeof(FIL));
+    fp = (FIL *)zalloc(sizeof(FIL) + SS(fs));
     if (fp == NULL) {
         ret = ENOMEM;
         goto ERROR_EXIT;
@@ -628,19 +630,13 @@ int fatfs_open(struct file *filep)
     fp->err = 0;
     fp->sect = 0;
     fp->fptr = 0;
-    fp->buf = (BYTE*) ff_memalloc(SS(fs));
-    if (fp->buf == NULL) {
-        ret = ENOMEM;
-        goto ERROR_UNLOCK;
-    }
+    fp->buf = (BYTE *)fp + sizeof(FIL);
     LOS_ListAdd(&finfo->fp_list, &fp->fp_entry);
     unlock_fs(fs, FR_OK);
 
     filep->f_priv = fp;
-    return fatfs_sync(vp->originMount->mountFlags, fs);
+    return 0;
 
-ERROR_UNLOCK:
-    unlock_fs(fs, FR_OK);
 ERROR_FREE:
     free(fp);
 ERROR_EXIT:
@@ -670,7 +666,6 @@ int fatfs_close(struct file *filep)
     }
 #endif
     LOS_ListDelete(&fp->fp_entry);
-    ff_memfree(fp->buf);
     free(fp);
     filep->f_priv = NULL;
 EXIT:
@@ -1297,6 +1292,29 @@ int fatfs_umount(struct Mount *mnt, struct Vnode **blkdriver)
     return 0;
 }
 
+int fatfs_sync_adapt(struct Mount *mnt)
+{
+    (void)mnt;
+    int ret = 0;
+#ifdef LOSCFG_FS_FAT_CACHE
+    struct Vnode *dev = NULL;
+    los_part *part = NULL;
+
+    if (mnt == NULL) {
+        return -EINVAL;
+    }
+
+    dev = mnt->vnodeDev;
+    part = los_part_find(dev);
+    if (part == NULL) {
+        return -EINVAL;
+    }
+
+    ret = OsSdSync(part->disk_id);
+#endif
+    return ret;
+}
+
 int fatfs_statfs(struct Mount *mnt, struct statfs *info)
 {
     FATFS *fs = (FATFS *)mnt->data;
@@ -1848,6 +1866,7 @@ int fatfs_mkfs (struct Vnode *device, int sectors, int option)
     BYTE *work_buff = NULL;
     los_part *part = NULL;
     FRESULT result;
+    MKFS_PARM opt = {0};
     int ret;
 
     part = los_part_find(device);
@@ -1872,7 +1891,9 @@ int fatfs_mkfs (struct Vnode *device, int sectors, int option)
         return -ENOMEM;
     }
 
-    result = _mkfs(part, sectors, option, work_buff, FF_MAX_SS);
+    opt.n_sect = sectors;
+    opt.fmt = (BYTE)option;
+    result = _mkfs(part, &opt, work_buff, FF_MAX_SS);
     free(work_buff);
     if (result != FR_OK) {
         return -fatfs_2_vfs(result);
@@ -2032,45 +2053,18 @@ static UINT get_oldest_time(DIR_FILE df[], DWORD *oldest_time, UINT len)
     return index;
 }
 
-int fatfs_fscheck(struct Vnode* vp, struct fs_dirent_s *dir)
+static FRESULT fscheck(DIR *dp)
 {
-    FATFS *fs = (FATFS *)vp->originMount->data;
     DIR_FILE df[CHECK_FILE_NUM] = {0};
-    DIR *dp = NULL;
-    FILINFO *finfo = &(((DIR_FILE *)(vp->data))->fno);
     FILINFO fno;
-    DWORD old_time = -1;
-    DWORD time;
-    UINT count;
     UINT index = 0;
-    los_part *part = NULL;
+    UINT count;
+    DWORD time;
+    DWORD old_time = -1;
     FRESULT result;
-    int ret;
-
-    if (fs->fs_type != FS_FAT32) {
-        return -EINVAL;
-    }
-
-    if ((finfo->fattrib & AM_DIR) == 0) {
-        return -ENOTDIR;
-    }
-
-    ret = fatfs_opendir(vp, dir);
-    if (ret < 0) {
-        return ret;
-    }
-
-    ret = lock_fs(fs);
-    if (ret == FALSE) {
-        result = FR_TIMEOUT;
-        goto ERROR_WITH_DIR;
-    }
-
-    dp = (DIR *)dir->u.fs_dir;
-    dp->obj.id = fs->id;
     for (count = 0; count < CHECK_FILE_NUM; count++) {
         if ((result = f_readdir(dp, &fno)) != FR_OK) {
-            goto ERROR_UNLOCK;
+            return result;
         } else {
             if (fno.fname[0] == 0 || fno.fname[0] == (TCHAR)0xFF) {
                 break;
@@ -2095,15 +2089,50 @@ int fatfs_fscheck(struct Vnode* vp, struct fs_dirent_s *dir)
             index = get_oldest_time(df, &old_time, CHECK_FILE_NUM);
         }
     }
-    if (result != FR_OK) {
-        goto ERROR_UNLOCK;
+    index = 0;
+    while (result == FR_OK && index < count) {
+        result = f_fcheckfat(&df[index]);
+        ++index;
     }
 
-    for (index = 0; index < count; index++) {
-        result = f_fcheckfat(&df[index]);
-        if (result != FR_OK) {
-            goto ERROR_UNLOCK;
-        }
+    return result;
+}
+
+int fatfs_fscheck(struct Vnode* vp, struct fs_dirent_s *dir)
+{
+    FATFS *fs = (FATFS *)vp->originMount->data;
+    DIR *dp = NULL;
+    FILINFO *finfo = &(((DIR_FILE *)(vp->data))->fno);
+#ifdef LOSCFG_FS_FAT_CACHE
+    los_part *part = NULL;
+#endif
+    FRESULT result;
+    int ret;
+
+    if (fs->fs_type != FS_FAT32) {
+        return -EINVAL;
+    }
+
+    if ((finfo->fattrib & AM_DIR) == 0) {
+        return -ENOTDIR;
+    }
+
+    ret = fatfs_opendir(vp, dir);
+    if (ret < 0) {
+        return ret;
+    }
+
+    ret = lock_fs(fs);
+    if (ret == FALSE) {
+        result = FR_TIMEOUT;
+        goto ERROR_WITH_DIR;
+    }
+
+    dp = (DIR *)dir->u.fs_dir;
+    dp->obj.id = fs->id;
+    result = fscheck(dp);
+    if (result != FR_OK) {
+        goto ERROR_UNLOCK;
     }
 
     unlock_fs(fs, FR_OK);
@@ -2180,6 +2209,207 @@ ERROUT:
     return -fatfs_2_vfs(res);
 }
 
+ssize_t fatfs_readpage(struct Vnode *vnode, char *buff, off_t pos)
+{
+    FATFS *fs = (FATFS *)(vnode->originMount->data);
+    DIR_FILE *dfp = (DIR_FILE *)(vnode->data);
+    FILINFO *finfo = &(dfp->fno);
+    FAT_ENTRY *ep = &(dfp->fat_entry);
+    DWORD clust;
+    DWORD sclust;
+    QWORD sect;
+    QWORD step;
+    QWORD n;
+    size_t position; /* byte offset */
+    BYTE *buf = (BYTE *)buff;
+    size_t buflen = PAGE_SIZE;
+    FRESULT result;
+    int ret;
+
+    ret = lock_fs(fs);
+    if (ret == FALSE) {
+        result = FR_TIMEOUT;
+        goto ERROR_OUT;
+    }
+
+    if (finfo->fsize <= pos) {
+        result = FR_OK;
+        goto ERROR_UNLOCK;
+    }
+
+    if (ep->clst == 0) {
+        ep->clst = finfo->sclst;
+    }
+
+    if (pos >= ep->pos) {
+        clust = ep->clst;
+        position = ep->pos;
+    } else {
+        clust = finfo->sclst;
+        position = 0;
+    }
+
+    /* Get to the current cluster */
+    n = pos / SS(fs) / fs->csize - position / SS(fs) / fs->csize;
+    while (n--) {
+        clust = get_fat(&(dfp->f_dir.obj), clust);
+        if ((clust == BAD_CLUSTER) || (clust == DISK_ERROR)) {
+            result = FR_DISK_ERR;
+            goto ERROR_UNLOCK;
+        }
+    }
+
+    /* Get to the currnet sector */
+    sect = clst2sect(fs, clust);
+    sect += (pos / SS(fs)) & (fs->csize - 1);
+
+    /* How many sectors do we need to read once */
+    if (fs->csize < buflen / SS(fs)) {
+        step = fs->csize;
+    } else {
+        step = buflen / SS(fs);
+    }
+
+    n = 0;
+    sclust = clust;
+    while (n < buflen / SS(fs)) {
+        if (disk_read(fs->pdrv, buf, sect, step) != RES_OK) {
+            result = FR_DISK_ERR;
+            goto ERROR_UNLOCK;
+        }
+        n += step;
+        if (n >= buflen / SS(fs)) {
+            break;
+        }
+
+        /* As cluster size is aligned, it must jump to next cluster when cluster size is less than pagesize */
+        clust = get_fat(&(dfp->f_dir.obj), clust);
+        if ((clust == BAD_CLUSTER) || (clust == DISK_ERROR)) {
+            result = FR_DISK_ERR;
+            goto ERROR_UNLOCK;
+        } else if (fatfs_is_last_cluster(fs, clust)) {
+            break; /* read end */
+        }
+        sect = clst2sect(fs, clust);
+        buf += step * SS(fs);
+    }
+
+    ep->clst = sclust;
+    ep->pos = pos;
+
+    unlock_fs(fs, FR_OK);
+
+    return (ssize_t)min(finfo->fsize - pos, n * SS(fs));
+
+ERROR_UNLOCK:
+    unlock_fs(fs, result);
+ERROR_OUT:
+    return -fatfs_2_vfs(result);
+}
+
+ssize_t fatfs_writepage(struct Vnode *vnode, char *buff, off_t pos, size_t buflen)
+{
+    FATFS *fs = (FATFS *)(vnode->originMount->data);
+    DIR_FILE *dfp = (DIR_FILE *)(vnode->data);
+    FILINFO *finfo = &(dfp->fno);
+    FAT_ENTRY *ep = &(dfp->fat_entry);
+    DWORD clust;
+    DWORD sclst;
+    QWORD sect;
+    QWORD step;
+    QWORD n;
+    size_t position; /* byte offset */
+    BYTE *buf = (BYTE *)buff;
+    FRESULT result;
+    FIL fil;
+    int ret;
+
+    ret = lock_fs(fs);
+    if (ret == FALSE) {
+        result = FR_TIMEOUT;
+        goto ERROR_OUT;
+    }
+
+    if (finfo->fsize <= pos) {
+        result = FR_OK;
+        goto ERROR_UNLOCK;
+    }
+
+    if (ep->clst == 0) {
+        ep->clst = finfo->sclst;
+    }
+
+    if (pos >= ep->pos) {
+        clust = ep->clst;
+        position = ep->pos;
+    } else {
+        clust = finfo->sclst;
+        position = 0;
+    }
+
+    /* Get to the current cluster */
+    n = pos / SS(fs) / fs->csize - position / SS(fs) / fs->csize;
+    while (n--) {
+        clust = get_fat(&(dfp->f_dir.obj), clust);
+        if ((clust == BAD_CLUSTER) || (clust == DISK_ERROR)) {
+            result = FR_DISK_ERR;
+            goto ERROR_UNLOCK;
+        }
+    }
+
+    /* Get to the currnet sector */
+    sect = clst2sect(fs, clust);
+    sect += (pos / SS(fs)) & (fs->csize - 1);
+
+    /* How many sectors do we need to read once */
+    if (fs->csize < buflen / SS(fs)) {
+        step = fs->csize;
+    } else {
+        step = buflen / SS(fs);
+    }
+
+    n = 0;
+    sclst = clust;
+    while (n < buflen / SS(fs)) {
+        if (disk_write(fs->pdrv, buf, sect, step) != RES_OK) {
+            result = FR_DISK_ERR;
+            goto ERROR_UNLOCK;
+        }
+        n += step;
+        if (n >= buflen / SS(fs)) {
+            break;
+        }
+
+        /* As cluster size is aligned, it must jump to next cluster when cluster size is less than pagesize */
+        clust = get_fat(&(dfp->f_dir.obj), clust);
+        if ((clust == BAD_CLUSTER) || (clust == DISK_ERROR)) {
+            result = FR_DISK_ERR;
+            goto ERROR_UNLOCK;
+        } else if (fatfs_is_last_cluster(fs, clust)) {
+            break; /* read end */
+        }
+        sect = clst2sect(fs, clust);
+        buf += step * SS(fs);
+    }
+
+    ep->clst = sclst;
+    ep->pos = pos;
+
+    fil.obj.fs = fs;
+    if (update_filbuff(finfo, &fil, NULL) < 0) {
+        result = FR_DISK_ERR;
+        goto ERROR_UNLOCK;
+    }
+
+    unlock_fs(fs, FR_OK);
+
+    return (ssize_t)min(finfo->fsize - pos, n * SS(fs));
+ERROR_UNLOCK:
+    unlock_fs(fs, result);
+ERROR_OUT:
+    return -fatfs_2_vfs(result);
+}
+
 struct VnodeOps fatfs_vops = {
     /* file ops */
     .Getattr = fatfs_stat,
@@ -2187,6 +2417,8 @@ struct VnodeOps fatfs_vops = {
     .Lookup = fatfs_lookup,
     .Rename = fatfs_rename,
     .Create = fatfs_create,
+    .ReadPage = fatfs_readpage,
+    .WritePage = fatfs_writepage,
     .Unlink = fatfs_unlink,
     .Reclaim = fatfs_reclaim,
     .Truncate = fatfs_truncate,
@@ -2207,6 +2439,7 @@ struct MountOps fatfs_mops = {
     .Mount = fatfs_mount,
     .Unmount = fatfs_umount,
     .Statfs = fatfs_statfs,
+    .Sync = fatfs_sync_adapt,
 };
 
 struct file_operations_vfs fatfs_fops = {

fs/fat/os_adapt/fatfs.h

@@ -146,7 +146,7 @@ int fatfs_fscheck(struct Vnode* vnode, struct fs_dirent_s *dir);
 
 FRESULT find_fat_partition(FATFS *fs, los_part *part, BYTE *format, QWORD *start_sector);
 FRESULT init_fatobj(FATFS *fs, BYTE fmt, QWORD start_sector);
-FRESULT _mkfs(los_part *partition, int sector, int opt, BYTE *work, UINT len);
+FRESULT _mkfs(los_part *partition, const MKFS_PARM *opt, BYTE *work, UINT len);
 
 #ifdef __cplusplus
 #if __cplusplus

fs/fat/virpart/Makefile

@@ -33,10 +33,8 @@ MODULE_NAME := $(notdir $(shell pwd))
 
 LOCAL_SRCS :=  $(wildcard src/*.c)
 
-LOCAL_INCLUDE := \
-	-I $(LITEOSTOPDIR)/fs/fat/virpart/include \
-	-I $(LITEOSTOPDIR)/fs/fat/os_adapt
+LOCAL_INCLUDE := -I $(LITEOSTOPDIR)/fs/fat/os_adapt
 
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
+LOCAL_FLAGS := $(LOCAL_INCLUDE)
 
 include $(MODULE)

fs/fat/virpart/src/virpart.c

@@ -267,7 +267,7 @@ static FRESULT FatfsScanClear(INT vol)
  * Acceptable Return Value:
  * - FR_OK          : The root directory is completely clean.
  * - FR_OCCUPIED    : The virtual partition entry has been occupied by the same name file.
- * - FR_CHAIN_ERR   : The virtual partition entry has been rebuilt along the invaild cluster
+ * - FR_CHAIN_ERR   : The virtual partition entry has been rebuilt along the invalid cluster
  *                    chain.
  * Others Return Value:
  * Followed the by the lower API

fs/fat/virpart/src/virpartff.c

@@ -53,7 +53,7 @@ extern FATFS *FatFs[FF_VOLUMES];
 * follow_virentry:
 * Compare the top segment with the virtual partition entry and replace it to its CHILD FATFS
 *
-* Acceptable return vaule:
+* Acceptable return value:
 * - FR_OK      : The top segment matches one of the virtual partition entries, and the FATFS
 *              has been replaced to the corresponding FATFS.
 * - FR_DENIED  : The top segment does not matched any of the virtual partition entries, and
@@ -291,7 +291,7 @@ static void FatfsSetParentFs(FATFS *pfs, FATFS *fs)
 * - FR_DENIED              :   The virtual partition feature has been shut down by switcher
 * - FR_DISK_ERR            :   A disk error happened
 * - FR_NOT_ENOUGH_CORE     :   Not enough memory for allocate space for CHILD FATFS
-* - FR_INVALID_PARAMETER   :   There is a invaild value in current setting
+* - FR_INVALID_PARAMETER   :   There is a invalid value in current setting
 */
 FRESULT f_regvirfs(FATFS *fs)
 {
@@ -507,7 +507,7 @@ static void FatfsSetChildClst(BYTE *work, FATFS *fs, WORD i)
 * - FR_INVAILD_FATFS : The FATFS object has error or the info in it has been occuried
 * - FR_DENIED          : The virtual partition feature has been shut down by switcher
 * - FR_INVALID_DRIVE   : The drive index is error
-* - FR_DISK_ERR        : A Disk error happend
+* - FR_DISK_ERR        : A Disk error happened
 */
 FRESULT f_checkvirpart(FATFS *fs, const TCHAR *path, BYTE vol)
 {
@@ -525,7 +525,7 @@ FRESULT f_checkvirpart(FATFS *fs, const TCHAR *path, BYTE vol)
     }
 
     /* Lock the filesystem object */
-    res = find_volume(&path, &fs, FA_WRITE); /* Update the filesystem info to the parent fs */
+    res = mount_volume(&path, &fs, FA_WRITE); /* Update the filesystem info to the parent fs */
     if (res != FR_OK) {
         LEAVE_FF(fs, res);
     }
@@ -663,7 +663,7 @@ static void FatfsClacPartInfo(FATFS *fs, DOUBLE virpartper, UINT i)
 * - FR_INVAILD_FATFS   : The FATFS object has error or the info in it has been occuried
 * - FR_DENIED          : The virtual partition feature has been shut down by switcher
 * - FR_INVALID_DRIVE   : The drive index is error
-* - FR_DISK_ERR        : A Disk error happend
+* - FR_DISK_ERR        : A Disk error happened
 */
 FRESULT f_makevirpart(FATFS *fs, const TCHAR *path, BYTE vol)
 {
@@ -683,7 +683,7 @@ FRESULT f_makevirpart(FATFS *fs, const TCHAR *path, BYTE vol)
     }
 
     /* Lock the filesystem object */
-    res = find_volume(&path, &fs, FA_WRITE); /* Update the filesystem info to the parent fs */
+    res = mount_volume(&path, &fs, FA_WRITE); /* Update the filesystem info to the parent fs */
     if (res != FR_OK) {
         LEAVE_FF(fs, res);
     }
@@ -774,7 +774,7 @@ FRESULT f_getvirfree(const TCHAR *path, DWORD *nclst, DWORD *cclst)
     DIR dj;
 
     /* Find volume to Update the global FSINFO */
-    res = find_volume(&path, &fs, 0);
+    res = mount_volume(&path, &fs, 0);
     if (res != FR_OK) {
         LEAVE_FF(fs, res);
     }
@@ -797,7 +797,7 @@ FRESULT f_getvirfree(const TCHAR *path, DWORD *nclst, DWORD *cclst)
 
     /* If current FATFS is a CHILD FATFS */
     if (ISCHILD(fs)) {
-        /* If CHILD FATFS' free_clst is invaild, the scan the FAT and update it */
+        /* If CHILD FATFS' free_clst is invalid, the scan the FAT and update it */
         if (fs->free_clst > fs->ct_clst) {
             dj.obj.fs = fs;
             fs->free_clst = fs->ct_clst;

fs/include/fs/fs_operation.h

@@ -41,81 +41,6 @@ extern "C" {
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-/* vfs/fs_file_mapping.c ****************************************************/
-/****************************************************************************
- * Name: init_file_mapping
- *
- * Description:
- *   Init the global management structure of path <-> page_mapping
- *
- ****************************************************************************/
-
-extern UINT32 init_file_mapping(void);
-
-/****************************************************************************
- * Name: add_mapping
- *
- * Description:
- *   Create a new path <-> page_mapping mapping and add to global list.
- *
- ****************************************************************************/
-
-extern void add_mapping(struct file *filep, const char *fullpath);
-
-/****************************************************************************
- * Name: find_mapping
- *
- * Description:
- *   Find the page_mapping for path in global list.
- *
- ****************************************************************************/
-
-extern struct page_mapping *find_mapping(const char *path);
-
-/****************************************************************************
- * Name: remove_mapping
- *
- * Description:
- *   Drop all the page-caches for the file, and then remove mapping between
- *   the file and pagecache.
- *   ex_filp NULL: do not exclude any file, just matching the fullpath;
- *   ex_filp not NULL: exclude it, which means, ex_filp can be open.
- *
- ****************************************************************************/
-
-extern int remove_mapping(const char *fullpath);
-
-/****************************************************************************
- * Name: rename_mapping
- *
- * Description:
- *   Rename the mapping from global path <-> page_mapping list.
- *
- ****************************************************************************/
-
-extern void rename_mapping(const char *src, const char *dst);
-
-/****************************************************************************
- * Name: dec_mapping
- *
- * Description:
- *   Decrease the refcnt of mapping.
- *
- ****************************************************************************/
-
-extern void dec_mapping_nolock(struct page_mapping *mapping);
-
-
-/****************************************************************************
- * Name: update_file_path
- *
- * Description:
- *   Update the path in file descriptors when do renaming.
- *
- ****************************************************************************/
-
-extern int update_file_path(const char *old_path, const char *new_path);
-
 /**
  * @ingroup  fs
  * @brief Initializes the vfs filesystem

fs/include/fs/mount.h

@@ -61,6 +61,7 @@ struct MountOps {
     int (*Mount)(struct Mount *mount, struct Vnode *vnode, const void *data);
     int (*Unmount)(struct Mount *mount, struct Vnode **blkdriver);
     int (*Statfs)(struct Mount *mount, struct statfs *sbp);
+    int (*Sync)(struct Mount *mount);
 };
 
 typedef int (*foreach_mountpoint_t)(const char *devpoint,

fs/include/vfs_config.h

@@ -44,14 +44,14 @@ extern "C" {
 #define PATH_MAX 256
 #define CONFIG_DISABLE_MQUEUE   // disable posix mqueue inode configure
 
-/* file system configur */
+/* file system config */
 
 #define CONFIG_FS_WRITABLE      // enable file system can be written
 #define CONFIG_FS_READABLE      // enable file system can be read
 #define CONFIG_DEBUG_FS         // enable vfs debug function
 
 
-/* fatfs cache configur */
+/* fatfs cache config */
 /* config block size for fat file system, only can be 0,32,64,128,256,512,1024 */
 #define CONFIG_FS_FAT_SECTOR_PER_BLOCK  64
 
@@ -96,6 +96,7 @@ extern "C" {
 #define CONFIG_NEXPANED_DESCRIPTORS     (CONFIG_NTIME_DESCRIPTORS + CONFIG_NQUEUE_DESCRIPTORS)
 #define TIMER_FD_OFFSET                 FD_SETSIZE
 #define MQUEUE_FD_OFFSET                (FD_SETSIZE + CONFIG_NTIME_DESCRIPTORS)
+#define EPOLL_FD_OFFSET                 (FD_SETSIZE + CONFIG_NTIME_DESCRIPTORS + CONFIG_NQUEUE_DESCRIPTORS)
 
 /* net configure */
 
@@ -129,6 +130,8 @@ extern "C" {
 
 #define VFS_USING_WORKDIR               // enable current working directory
 
+#define CONFIG_EPOLL_DESCRIPTORS    32
+
 /* permission configure */
 #define DEFAULT_DIR_MODE        0777
 #define DEFAULT_FILE_MODE       0666

fs/jffs2/Makefile

@@ -35,10 +35,9 @@ LOCAL_SRCS := $(wildcard src/*.c) \
 		$(wildcard $(LITEOSTHIRDPARTY)/Linux_Kernel/fs/jffs2/*.c)
 LOCAL_INCLUDE := \
 		-I $(LITEOSTOPDIR)/fs/jffs2/include \
-		-I $(LITEOSTOPDIR)/drivers/mtd/multi_partition/include \
 		-I $(LITEOSTHIRDPARTY)/Linux_Kernel/fs/jffs2 \
 		-I $(LITEOSTHIRDPARTY)/Linux_Kernel/fs
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
+LOCAL_FLAGS := $(LOCAL_INCLUDE)
 
 include $(MODULE)
 

fs/jffs2/src/vfs_jffs2.c

@@ -201,13 +201,13 @@ int VfsJffs2Lookup(struct Vnode *parentVnode, const char *path, int len, struct
     }
 
     (void)VfsHashGet(parentVnode->originMount, node->i_ino, &newVnode, NULL, NULL);
-    LOS_MuxUnlock(&g_jffs2FsLock);
     if (newVnode) {
         if (newVnode->data == NULL) {
             LOS_Panic("#####VfsHashGet error#####\n");
         }
         newVnode->parent = parentVnode;
         *ppVnode = newVnode;
+        LOS_MuxUnlock(&g_jffs2FsLock);
         return 0;
     }
     ret = VnodeAlloc(&g_jffs2Vops, &newVnode);
@@ -276,7 +276,7 @@ int VfsJffs2Close(struct file *filep)
     return 0;
 }
 
-ssize_t VfsJffs2Read(struct file *filep, char *buffer, size_t bufLen)
+ssize_t VfsJffs2ReadPage(struct Vnode *vnode, char *buffer, off_t off)
 {
     struct jffs2_inode *node = NULL;
     struct jffs2_inode_info *f = NULL;
@@ -285,6 +285,32 @@ ssize_t VfsJffs2Read(struct file *filep, char *buffer, size_t bufLen)
 
     LOS_MuxLock(&g_jffs2FsLock, (uint32_t)JFFS2_WAITING_FOREVER);
 
+    node = (struct jffs2_inode *)vnode->data;
+    f = JFFS2_INODE_INFO(node);
+    c = JFFS2_SB_INFO(node->i_sb);
+
+    off_t pos = min(node->i_size, off);
+    ssize_t len = min(PAGE_SIZE, (node->i_size - pos));
+    ret = jffs2_read_inode_range(c, f, (unsigned char *)buffer, off, len);
+    if (ret) {
+        LOS_MuxUnlock(&g_jffs2FsLock);
+        return ret;
+    }
+    node->i_atime = Jffs2CurSec();
+
+    LOS_MuxUnlock(&g_jffs2FsLock);
+
+    return len;
+}
+
+ssize_t VfsJffs2Read(struct file *filep, char *buffer, size_t bufLen)
+{
+    struct jffs2_inode *node = NULL;
+    struct jffs2_inode_info *f = NULL;
+    struct jffs2_sb_info *c = NULL;
+    int ret;
+
+    LOS_MuxLock(&g_jffs2FsLock, (uint32_t)JFFS2_WAITING_FOREVER);
     node = (struct jffs2_inode *)filep->f_vnode->data;
     f = JFFS2_INODE_INFO(node);
     c = JFFS2_SB_INFO(node->i_sb);
@@ -293,7 +319,6 @@ ssize_t VfsJffs2Read(struct file *filep, char *buffer, size_t bufLen)
     off_t len = min(bufLen, (node->i_size - pos));
     ret = jffs2_read_inode_range(c, f, (unsigned char *)buffer, filep->f_pos, len);
     if (ret) {
-        PRINTK("VfsJffs2Read(): read_inode_range failed %d\n", ret);
         LOS_MuxUnlock(&g_jffs2FsLock);
         return ret;
     }
@@ -305,6 +330,59 @@ ssize_t VfsJffs2Read(struct file *filep, char *buffer, size_t bufLen)
     return len;
 }
 
+ssize_t VfsJffs2WritePage(struct Vnode *vnode, char *buffer, off_t pos, size_t buflen)
+{
+    struct jffs2_inode *node = NULL;
+    struct jffs2_inode_info *f = NULL;
+    struct jffs2_sb_info *c = NULL;
+    struct jffs2_raw_inode ri = {0};
+    struct IATTR attr = {0};
+    int ret;
+    uint32_t writtenLen;
+
+    LOS_MuxLock(&g_jffs2FsLock, (uint32_t)JFFS2_WAITING_FOREVER);
+
+    node = (struct jffs2_inode *)vnode->data;
+    f = JFFS2_INODE_INFO(node);
+    c = JFFS2_SB_INFO(node->i_sb);
+
+    if (pos < 0) {
+        LOS_MuxUnlock(&g_jffs2FsLock);
+        return -EINVAL;
+    }
+
+    ri.ino = cpu_to_je32(f->inocache->ino);
+    ri.mode = cpu_to_jemode(node->i_mode);
+    ri.uid = cpu_to_je16(node->i_uid);
+    ri.gid = cpu_to_je16(node->i_gid);
+    ri.atime = ri.ctime = ri.mtime = cpu_to_je32(Jffs2CurSec());
+
+    if (pos > node->i_size) {
+        int err;
+        attr.attr_chg_valid = CHG_SIZE;
+        attr.attr_chg_size = pos;
+        err = jffs2_setattr(node, &attr);
+        if (err) {
+            LOS_MuxUnlock(&g_jffs2FsLock);
+            return err;
+        }
+    }
+    ri.isize = cpu_to_je32(node->i_size);
+
+    ret = jffs2_write_inode_range(c, f, &ri, (unsigned char *)buffer, pos, buflen, &writtenLen);
+    if (ret) {
+        node->i_mtime = node->i_ctime = je32_to_cpu(ri.mtime);
+        LOS_MuxUnlock(&g_jffs2FsLock);
+        return ret;
+    }
+
+    node->i_mtime = node->i_ctime = je32_to_cpu(ri.mtime);
+
+    LOS_MuxUnlock(&g_jffs2FsLock);
+
+    return (ssize_t)writtenLen;
+}
+
 ssize_t VfsJffs2Write(struct file *filep, const char *buffer, size_t bufLen)
 {
     struct jffs2_inode *node = NULL;
@@ -686,7 +764,6 @@ int VfsJffs2Symlink(struct Vnode *parentVnode, struct Vnode **newVnode, const ch
 
 ssize_t VfsJffs2Readlink(struct Vnode *vnode, char *buffer, size_t bufLen)
 {
-    ssize_t ret = 0;
     struct jffs2_inode *inode = NULL;
     struct jffs2_inode_info *f = NULL;
     ssize_t targetLen;
@@ -705,14 +782,12 @@ ssize_t VfsJffs2Readlink(struct Vnode *vnode, char *buffer, size_t bufLen)
     cnt = (bufLen - 1) < targetLen ? (bufLen - 1) : targetLen;
     if (LOS_CopyFromKernel(buffer, bufLen, (const char *)f->target, cnt) != 0) {
         cnt = 0;
-        ret = -EFAULT;
+        LOS_MuxUnlock(&g_jffs2FsLock);
+        return -EFAULT;
     }
     buffer[cnt] = '\0';
 
     LOS_MuxUnlock(&g_jffs2FsLock);
-    if (ret < 0) {
-        return ret;
-    }
 
     return cnt;
 }
@@ -878,6 +953,8 @@ const struct MountOps jffs_operations = {
 struct VnodeOps g_jffs2Vops = {
     .Lookup = VfsJffs2Lookup,
     .Create = VfsJffs2Create,
+    .ReadPage = VfsJffs2ReadPage,
+    .WritePage = VfsJffs2WritePage,
     .Rename = VfsJffs2Rename,
     .Mkdir = VfsJffs2Mkdir,
     .Getattr = VfsJffs2Stat,

fs/nfs/Makefile

@@ -33,6 +33,6 @@ MODULE_NAME := $(notdir $(shell pwd))
 
 LOCAL_SRCS := $(wildcard $(LITEOSTHIRDPARTY)/NuttX/fs/nfs/*.c)
 
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
+LOCAL_FLAGS := $(LOCAL_INCLUDE)
 
 include $(MODULE)