!671 在riscv32_virt中新增graphic适配，将riscv32_virt编译从musl调整为newlib

Merge pull request !671 from xiexg-dc/riscv32-virt

Kconfig

@@ -1,5 +1,5 @@
 # Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
-# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2022 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:
@@ -317,7 +317,7 @@ config CPUP_INCLUDE_IRQ
     help
       If you wish to include irq usage for cpup.
 
-config DYNLINK
+config KERNEL_DYNLINK
     bool "Enable Dynamic Link Feature"
     default n
     depends on KERNEL_EXTKERNEL && ARCH_ARM
@@ -369,7 +369,7 @@ config KERNEL_LMK
     default n
     depends on KERNEL_EXTKERNEL
     help
-      Configuration item for low momery killer tailoring.
+      Configuration item for low memory killer tailoring.
       If you wish to build LiteOS with support for low memory killer.
 
 config KERNEL_LMK_DEBUG
@@ -574,7 +574,7 @@ config MEM_LEAKCHECK
     depends on DEBUG_VERSION && MEM_DEBUG
     select KERNEL_BACKTRACE
     help
-      Answer Y to enable record the LR of Function call stack of Mem operation, it can check the mem leak through the infomations of mem node.
+      Answer Y to enable record the LR of Function call stack of Mem operation, it can check the mem leak through the informations of mem node.
 config BASE_MEM_NODE_INTEGRITY_CHECK
     bool "Enable integrity check or not"
     default n
@@ -600,11 +600,11 @@ endmenu
 
 ######################## config options os security #######################
 menu "Security"
-osource "security/Kconfig"
 config SECURE_TRUSTZONE
     bool "Enable ARM TrustZone"
     default n
     depends on ARCH_ARM
+    depends on ARCH_ARM_V8M
 config SECURE_HEAP_SIZE
     int "TrustZone Heap Size (bytes)"
     default 2048
@@ -615,6 +615,13 @@ config SECURE_STACK_DEFAULT_SIZE
     depends on SECURE_TRUSTZONE
     help
       The secure stack must be allocated before the task calls non-secure functions.
+config SECURE
+    bool "Enable Security"
+    default n
+    select MPU_ENABLE
+config MPU_ENABLE
+    bool "Enable MPU"
+    default n
 endmenu
 
 menu "Test"

README.md

@@ -85,11 +85,11 @@ Before setting up the environment for a development board, you must set up the b
 
 For details about how to obtain the source code, see [Source Code Acquisition](https://gitee.com/openharmony/docs/blob/HEAD/en/device-dev/get-code/sourcecode-acquire.md). This document assumes that the clone directory is `~/openHarmony` after the complete OpenHarmony repository code is obtained.
 
-### Example projects that are already supported
+### Example projects
 
-Qemu simulator: `arm_mps2_an386、esp32、riscv32_virt、SmartL_E802`, For details about how to compile and run, see [qemu guide](https://gitee.com/openharmony/device_qemu)
+Qemu simulator: `arm_mps2_an386、esp32、riscv32_virt、SmartL_E802`. For details about how to compile and run, see [qemu guide](https://gitee.com/openharmony/device_qemu).
 
-Bestechnic: `bes2600`, For details about how to compile and run, see [Bestechnic developer guide](https://gitee.com/openharmony/device_soc_bestechnic)
+Bestechnic: `bes2600`. For details about how to compile and run, see [Bestechnic developer guide](https://gitee.com/openharmony/device_soc_bestechnic).
 
 ### Community Porting Project Links
 
@@ -131,4 +131,4 @@ How to contribute a chip based on Liteos-M kernel:
 
 [Kernel Subsystem](https://gitee.com/openharmony/docs/blob/HEAD/en/readme/kernel-subsystem.md)
 
-**kernel\_liteos\_m**
+[kernel\_liteos\_m](https://gitee.com/openharmony/kernel_liteos_m/blob/master/README.md)

README_zh.md

@@ -131,5 +131,5 @@ LiteOS-M内核移植的具体开发板的工程由社区开发者提供，可以
 
 [内核子系统](https://gitee.com/openharmony/docs/blob/HEAD/zh-cn/readme/%E5%86%85%E6%A0%B8%E5%AD%90%E7%B3%BB%E7%BB%9F.md)
 
-**kernel\_liteos\_m**
+[kernel\_liteos\_m](https://gitee.com/openharmony/kernel_liteos_m/blob/master/README_zh.md)
 

arch/BUILD.gn

@@ -39,7 +39,8 @@ module_group("arch") {
       "$board_cpu" == "cortex-m4" || "$board_cpu" == "cortex-m7" ||
       "$board_cpu" == "cortex-m33" || "$board_cpu" == "cortex-m55") {
     modules += [ "arm" ]
-  } else if ("$board_cpu" == "ck802" || "$board_cpu" == "e802") {
+  } else if ("$board_cpu" == "ck802" || "$board_cpu" == "e802" ||
+             "$board_cpu" == "ck804ef") {
     modules += [ "csky" ]
   } else if ("$board_cpu" == "") {
     if ("$board_arch" == "rv32imac" || "$board_arch" == "rv32imafdc") {

arch/arm/Kconfig

@@ -16,12 +16,16 @@ config ARCH_ARM_AARCH32
 config ARCH_ARM_V7M
     bool
 
+config ARCH_ARM_V8M
+    bool
+
 config ARCH_ARM_V5TE
     bool
 
 config ARCH_ARM_VER
     string
     default "armv7-m" if ARCH_ARM_V7M
+    default "armv8-m" if ARCH_ARM_V8M
     default "armv5te" if ARCH_ARM_V5TE
 
 #
@@ -84,23 +88,20 @@ config ARCH_CORTEX_M7
     select ARCH_ARM_AARCH32
     select ARCH_FPU_VFP_V4
     select ARCH_FPU_VFP_D32
-    select ARCH_FPU_VFP_NEON
 
 config ARCH_CORTEX_M33
     bool
-    select ARCH_ARM_V7M
+    select ARCH_ARM_V8M
     select ARCH_ARM_AARCH32
     select ARCH_FPU_VFP_V4
     select ARCH_FPU_VFP_D32
-    select ARCH_FPU_VFP_NEON
 
 config ARCH_CORTEX_M55
     bool
-    select ARCH_ARM_V7M
+    select ARCH_ARM_V8M
     select ARCH_ARM_AARCH32
     select ARCH_FPU_VFP_V4
     select ARCH_FPU_VFP_D32
-    select ARCH_FPU_VFP_NEON
 
 config ARCH_ARM9
     bool

arch/arm/arm9/gcc/los_context.c

@@ -76,6 +76,7 @@ LITE_OS_SEC_TEXT_MINOR VOID ArchSysExit(VOID)
 LITE_OS_SEC_TEXT_INIT VOID *ArchTskStackInit(UINT32 taskID, UINT32 stackSize, VOID *topStack)
 {
     TaskContext *context = (TaskContext *)((UINTPTR)topStack + stackSize - sizeof(TaskContext));
+    LosTaskCB *taskCB = OS_TCB_FROM_TID(taskID);
 
     context->r0 = taskID;
     context->r1 = 0x01010101L;

arch/arm/arm9/gcc/los_interrupt.c

@@ -163,7 +163,6 @@ inline UINT32 ArchIsIntActive(VOID)
  Output      : None
  Return      : None
  **************************************************************************** */
-/*lint -e529*/
 LITE_OS_SEC_TEXT_MINOR VOID HalHwiDefaultHandler(VOID)
 {
     PRINT_ERR("%s irqnum:%u\n", __FUNCTION__, HwiNumGet());

arch/arm/cortex-m3/keil/los_exc.S

@@ -190,7 +190,7 @@ _hwiActiveCheck
     CMP   R3, #0
     BEQ   _hwiActiveCheckNext
 
-    ; exc occured in IRQ
+    ; exc occurred in IRQ
     ORR   R0, R0, #FLAG_HWI_ACTIVE
     RBIT  R2, R3
     CLZ   R2, R2
@@ -228,19 +228,19 @@ _hwiActiveCheckNext
     AND   R2, R2,R3
     CMP   R2,#0
     BNE   _ExcInMSP
-    ; exc occured in Task or Init or exc
+    ; exc occurred in Task or Init or exc
     ; reserved for register info from task stack
 
     LDR  R2, =g_taskScheduled
     LDR  R2, [R2]
     TST  R2, #1         ; OS_FLG_BGD_ACTIVE
-    BEQ  _ExcInMSP                      ; if exc occured in Init then branch
+    BEQ  _ExcInMSP                      ; if exc occurred in Init then branch
 
 
     CMP   LR, #0xFFFFFFED               ;auto push floating registers
     BNE   _NoFloatInPsp
 
-    ; exc occured in Task
+    ; exc occurred in Task
     MOV   R2,  R13
     SUB   R13, #96                      ; add 8 Bytes reg(for STMFD)
 

arch/arm/cortex-m3/keil/los_interrupt.c

@@ -40,14 +40,12 @@
 #include "los_memory.h"
 #include "los_membox.h"
 
-/*lint -save -e40 -e522 -e533*/
 UINT32 g_intCount = 0;
 
-/*lint -restore*/
 #ifdef __ICCARM__
 #pragma location = ".data.vector"
 #elif defined(__CC_ARM) || defined(__GNUC__)
-#pragma data_alignment=LOSCFG_ARCH_HWI_VECTOR_ALIGN
+#pragma data_alignment = LOSCFG_ARCH_HWI_VECTOR_ALIGN
 LITE_OS_SEC_VEC
 #endif
 /* *
@@ -198,7 +196,6 @@ inline UINT32 ArchIsIntActive(VOID)
  Output      : None
  Return      : None
  **************************************************************************** */
-/*lint -e529*/
 LITE_OS_SEC_TEXT_MINOR VOID HalHwiDefaultHandler(VOID)
 {
     PRINT_ERR("%s irqnum:%u\n", __FUNCTION__, HwiNumGet());
@@ -602,7 +599,7 @@ LITE_OS_SEC_TEXT_INIT VOID HalHwiInit(VOID)
 
     /* Enable USGFAULT, BUSFAULT, MEMFAULT */
     *(volatile UINT32 *)OS_NVIC_SHCSR |= (USGFAULT | BUSFAULT | MEMFAULT);
-	
+
     /* Enable DIV 0 and unaligned exception */
 #ifdef LOSCFG_ARCH_UNALIGNED_EXC
     *(volatile UINT32 *)OS_NVIC_CCR |= (DIV0FAULT | UNALIGNFAULT);

arch/arm/cortex-m33/gcc/NTZ/los_exc.S

@@ -263,7 +263,7 @@ _hwiActiveCheck:
     CMP   R3, #0
     BEQ   _hwiActiveCheckNext
 
-    // exc occured in IRQ
+    // exc occurred in IRQ
     ORR   R0, R0, #FLAG_HWI_ACTIVE
     RBIT  R2, R3
     CLZ   R2, R2
@@ -316,19 +316,19 @@ _hwiActiveCheckNext:
     AND   R2, R2,R3
     CMP   R2,#0
     BNE   _ExcInMSP
-    // exc occured in Task or Init or exc
+    // exc occurred in Task or Init or exc
     // reserved for register info from task stack
 
     LDR  R2, =g_taskScheduled
     LDR  R2, [R2]
     TST  R2, #1                         // OS_FLG_BGD_ACTIVE
-    BEQ  _ExcInMSP                      // if exc occured in Init then branch
+    BEQ  _ExcInMSP                      // if exc occurred in Init then branch
 
 
     CMP   LR, #0xFFFFFFED               //auto push floating registers
     BNE   _NoFloatInPsp
 
-    // exc occured in Task
+    // exc occurred in Task
     MOV   R2,  R13
     SUB   R13, #96                      // add 8 Bytes reg(for STMFD)
 

arch/arm/cortex-m33/gcc/NTZ/los_interrupt.c

@@ -41,10 +41,8 @@
 #include "los_membox.h"
 
 #define DEF_HANDLER_START_INDEX 2
-/*lint -save -e40 -e522 -e533*/
 UINT32 g_intCount = 0;
 
-/*lint -restore*/
 
 /* *
  * @ingroup los_hwi
@@ -189,7 +187,6 @@ inline UINT32 ArchIsIntActive(VOID)
  Output      : None
  Return      : None
  **************************************************************************** */
-/*lint -e529*/
 LITE_OS_SEC_TEXT_MINOR VOID HalHwiDefaultHandler(VOID)
 {
     PRINT_ERR("%s irqnum:%u\n", __FUNCTION__, HwiNumGet());
@@ -593,7 +590,7 @@ LITE_OS_SEC_TEXT_INIT VOID HalHwiInit(VOID)
 
     /* Enable USGFAULT, BUSFAULT, MEMFAULT */
     *(volatile UINT32 *)OS_NVIC_SHCSR |= (USGFAULT | BUSFAULT | MEMFAULT);
-	
+
     /* Enable DIV 0 and unaligned exception */
 #ifdef LOSCFG_ARCH_UNALIGNED_EXC
     *(volatile UINT32 *)OS_NVIC_CCR |= (DIV0FAULT | UNALIGNFAULT);

arch/arm/cortex-m33/gcc/TZ/non_secure/los_exc.S

@@ -247,7 +247,7 @@ _hwiActiveCheck:
     CMP   R3, #0
     BEQ   _hwiActiveCheckNext
 
-    // exc occured in IRQ
+    // exc occurred in IRQ
     ORR   R0, R0, #FLAG_HWI_ACTIVE
     RBIT  R2, R3
     CLZ   R2, R2
@@ -300,19 +300,19 @@ _hwiActiveCheckNext:
     AND   R2, R2,R3
     CMP   R2,#0
     BNE   _ExcInMSP
-    // exc occured in Task or Init or exc
+    // exc occurred in Task or Init or exc
     // reserved for register info from task stack
 
     LDR  R2, =g_taskScheduled
     LDR  R2, [R2]
     TST  R2, #1                         // OS_FLG_BGD_ACTIVE
-    BEQ  _ExcInMSP                      // if exc occured in Init then branch
+    BEQ  _ExcInMSP                      // if exc occurred in Init then branch
 
 
     CMP   LR, #0xFFFFFFED               //auto push floating registers
     BNE   _NoFloatInPsp
 
-    // exc occured in Task
+    // exc occurred in Task
     MOV   R2,  R13
     SUB   R13, #96                      // add 8 Bytes reg(for STMFD)
 

arch/arm/cortex-m33/gcc/TZ/non_secure/los_interrupt.c

@@ -41,11 +41,8 @@
 #include "los_membox.h"
 
 #define DEF_HANDLER_START_INDEX 2
-/*lint -save -e40 -e522 -e533*/
 UINT32 g_intCount = 0;
 
-/*lint -restore*/
-
 /* *
  * @ingroup los_hwi
  * Hardware interrupt form mapping handling function array.
@@ -593,7 +590,7 @@ LITE_OS_SEC_TEXT_INIT VOID HalHwiInit(VOID)
 
     /* Enable USGFAULT, BUSFAULT, MEMFAULT */
     *(volatile UINT32 *)OS_NVIC_SHCSR |= (USGFAULT | BUSFAULT | MEMFAULT);
-	
+
     /* Enable DIV 0 and unaligned exception */
 #ifdef LOSCFG_ARCH_UNALIGNED_EXC
     *(volatile UINT32 *)OS_NVIC_CCR |= (DIV0FAULT | UNALIGNFAULT);

arch/arm/cortex-m33/iar/NTZ/los_exc.S

@@ -56,8 +56,8 @@ FLAG_ADDR_VALID             EQU   0x10000
 FLAG_HWI_ACTIVE             EQU   0x20000
 FLAG_NO_FLOAT               EQU   0x10000000
 
-OS_NVIC_FSR                 EQU   0xE000ED28      ;include BusFault/MemFault/UsageFault State Regeister
-OS_NVIC_HFSR                EQU   0xE000ED2C      ;HardFault State Regeister
+OS_NVIC_FSR                 EQU   0xE000ED28      ;include BusFault/MemFault/UsageFault State Register
+OS_NVIC_HFSR                EQU   0xE000ED2C      ;HardFault State Register
 OS_NVIC_BFAR                EQU   0xE000ED38
 OS_NVIC_MMAR                EQU   0xE000ED34
 OS_NVIC_ACT_BASE            EQU   0xE000E300
@@ -190,7 +190,7 @@ _hwiActiveCheck
     CMP   R3, #0
     BEQ   _hwiActiveCheckNext
 
-    ; exc occured in IRQ
+    ; exc occurred in IRQ
     ORR   R0, R0, #FLAG_HWI_ACTIVE
     RBIT  R2, R3
     CLZ   R2, R2
@@ -228,19 +228,19 @@ _hwiActiveCheckNext
     AND   R2, R2,R3
     CMP   R2,#0
     BNE   _ExcInMSP
-    ; exc occured in Task or Init or exc
+    ; exc occurred in Task or Init or exc
     ; reserved for register info from task stack
 
     LDR  R2, =g_taskScheduled
     LDR  R2, [R2]
     TST  R2, #1         ; OS_FLG_BGD_ACTIVE
-    BEQ  _ExcInMSP                      ; if exc occured in Init then branch
+    BEQ  _ExcInMSP                      ; if exc occurred in Init then branch
 
 
     CMP   LR, #0xFFFFFFED               ;auto push floating registers
     BNE   _NoFloatInPsp
 
-    ; exc occured in Task
+    ; exc occurred in Task
     MOV   R2,  R13
     SUB   R13, #96                      ; add 8 Bytes reg(for STMFD)
 

arch/arm/cortex-m33/iar/NTZ/los_interrupt.c

@@ -46,7 +46,7 @@ UINT32 g_intCount = 0;
 
 /*lint -restore*/
 #pragma location = ".data.vector"
-#pragma data_alignment=LOSCFG_ARCH_HWI_VECTOR_ALIGN
+#pragma data_alignment = LOSCFG_ARCH_HWI_VECTOR_ALIGN
 /* *
  * @ingroup los_hwi
  * hardware interrupt form mapping handling function array.

arch/arm/cortex-m33/iar/TZ/non_secure/los_exc.S

@@ -55,8 +55,8 @@ FLAG_ADDR_VALID             EQU   0x10000
 FLAG_HWI_ACTIVE             EQU   0x20000
 FLAG_NO_FLOAT               EQU   0x10000000
 
-OS_NVIC_FSR                 EQU   0xE000ED28      ;include BusFault/MemFault/UsageFault State Regeister
-OS_NVIC_HFSR                EQU   0xE000ED2C      ;HardFault State Regeister
+OS_NVIC_FSR                 EQU   0xE000ED28      ;include BusFault/MemFault/UsageFault State Register
+OS_NVIC_HFSR                EQU   0xE000ED2C      ;HardFault State Register
 OS_NVIC_BFAR                EQU   0xE000ED38
 OS_NVIC_MMAR                EQU   0xE000ED34
 OS_NVIC_ACT_BASE            EQU   0xE000E300
@@ -179,7 +179,7 @@ _hwiActiveCheck
     CMP   R3, #0
     BEQ   _hwiActiveCheckNext
 
-    ; exc occured in IRQ
+    ; exc occurred in IRQ
     ORR   R0, R0, #FLAG_HWI_ACTIVE
     RBIT  R2, R3
     CLZ   R2, R2
@@ -217,19 +217,19 @@ _hwiActiveCheckNext
     AND   R2, R2,R3
     CMP   R2,#0
     BNE   _ExcInMSP
-    ; exc occured in Task or Init or exc
+    ; exc occurred in Task or Init or exc
     ; reserved for register info from task stack
 
     LDR  R2, =g_taskScheduled
     LDR  R2, [R2]
     TST  R2, #1         ; OS_FLG_BGD_ACTIVE
-    BEQ  _ExcInMSP                      ; if exc occured in Init then branch
+    BEQ  _ExcInMSP                      ; if exc occurred in Init then branch
 
 
     CMP   LR, #0xFFFFFFED               ;auto push floating registers
     BNE   _NoFloatInPsp
 
-    ; exc occured in Task
+    ; exc occurred in Task
     MOV   R2,  R13
     SUB   R13, #96                      ; add 8 Bytes reg(for STMFD)
 

arch/arm/cortex-m33/iar/TZ/non_secure/los_interrupt.c

@@ -46,7 +46,7 @@ UINT32 g_intCount = 0;
 
 /*lint -restore*/
 #pragma location = ".data.vector"
-#pragma data_alignment=LOSCFG_ARCH_HWI_VECTOR_ALIGN
+#pragma data_alignment = LOSCFG_ARCH_HWI_VECTOR_ALIGN
 /* *
  * @ingroup los_hwi
  * hardware interrupt form mapping handling function array.

arch/arm/cortex-m33/iar/TZ/secure/los_secure_heap.c

@@ -34,7 +34,7 @@
 #include "los_config.h"
 #include "los_list.h"
 
-#pragma data_alignment=0x4
+#pragma data_alignment = 0x4
 STATIC UINT8 g_secureHeap[LOSCFG_SECURE_HEAP_SIZE] = {0};
 STATIC LOS_DL_LIST g_secureHeapFreeList = {NULL, NULL};
 

arch/arm/cortex-m4/gcc/los_arch_context.h

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 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:
@@ -121,6 +121,29 @@ typedef struct TagTskContext {
  */
 extern VOID HalStartToRun(VOID);
 
+#if (LOSCFG_SECURE == 1)
+/**
+ * @ingroup  los_config
+ * @brief: User Task Stack Initialize.
+ *
+ * @par Description:
+ * This API is used to init a user task stack.
+ *
+ * @attention:
+ * <ul><li>None.</li></ul>
+ *
+ * @param: context      [IN] Task context.
+ * @param: taskEntry    [IN] Task entry function address.
+ * @param: stack        [IN] Task stack address.
+ *
+ * @retval None.
+ *
+ * @par Dependency: <ul><li>los_config.h: the header file that contains the API declaration.</li></ul>
+ * @see None.
+ */
+extern VOID HalUserTaskStackInit(TaskContext *context, UINTPTR taskEntry, UINTPTR stack);
+#endif
+
 #ifdef __cplusplus
 #if __cplusplus
 }

arch/arm/cortex-m4/gcc/los_context.c

@@ -148,6 +148,15 @@ VOID *ArchSignalContextInit(VOID *stackPointer, VOID *stackTop, UINTPTR sigHandl
     return (VOID *)context;
 }
 
+#if (LOSCFG_SECURE == 1)
+VOID HalUserTaskStackInit(TaskContext *context, UINTPTR taskEntry, UINTPTR stack)
+{
+    context->uwR0 = stack;
+    context->uwPC = (UINT32)taskEntry;
+    context->uwxPSR = 0x01000000L; /* Thumb flag, always set 1 */
+}
+#endif
+
 LITE_OS_SEC_TEXT_INIT UINT32 ArchStartSchedule(VOID)
 {
     (VOID)LOS_IntLock();

arch/arm/cortex-m4/gcc/los_dispatch.S

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 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:
@@ -40,6 +40,12 @@
 .equ    OS_NVIC_PENDSV_PRI,          0xF0F00000
 .equ    OS_NVIC_PENDSVSET,           0x10000000
 .equ    OS_TASK_STATUS_RUNNING,      0x0010
+.equ    OS_CONTROL_FPCA_ENABLE,      0x4
+.equ    OS_CONTROL_KERNEL_MODE,      0x2
+#if (LOSCFG_SECURE == 1)
+.equ    OS_CONTROL_USER_MODE,        0x3
+.equ    OS_TASK_FLAG_USER_TASK,      0x0200
+#endif
 
     .section .text
     .thumb
@@ -63,7 +69,7 @@ HalStartToRun:
     ldr     r5, =OS_NVIC_PENDSV_PRI
     str     r5, [r4]
 
-    mov     r0, #2
+    mov     r0, #OS_CONTROL_KERNEL_MODE
     msr     CONTROL, r0
 
     ldr     r1, =g_losTask
@@ -141,7 +147,7 @@ ArchTaskSchedule:
     bx      lr
     dsb
     isb
-   .fnend
+    .fnend
 
     .type HalPendSV, %function
     .global HalPendSV
@@ -194,6 +200,14 @@ SignalContextRestore:
     vldmia  r1!, {d8-d15}
 
 __DisabledFPU2:
+#if (LOSCFG_SECURE == 1)
+    ldrh    r7, [r0, #4]
+    tst     r7, #OS_TASK_FLAG_USER_TASK
+    ite     eq
+    moveq   r3, #OS_CONTROL_KERNEL_MODE
+    movne   r3, #OS_CONTROL_USER_MODE
+    msr     CONTROL, r3
+#endif
     ldmfd   r1!, {r4-r12}
     msr     psp,  r1
 

arch/arm/cortex-m4/gcc/los_exc.S

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 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:
@@ -57,15 +57,15 @@
 
 .equ FLAG_ADDR_VALID,   0x10000
 .equ FLAG_HWI_ACTIVE,   0x20000
-.equ FLAG_NO_FLOAT,   0x10000000
+.equ FLAG_NO_FLOAT,     0x10000000
 
-.equ OS_NVIC_FSR                 ,   0xE000ED28      //include BusFault/MemFault/UsageFault State Register
-.equ OS_NVIC_HFSR                ,   0xE000ED2C      //HardFault State Register
-.equ OS_NVIC_BFAR                ,   0xE000ED38
-.equ OS_NVIC_MMAR                ,   0xE000ED34
-.equ OS_NVIC_ACT_BASE            ,   0xE000E300
-.equ OS_NVIC_SHCSRS              ,   0xE000ED24
-.equ OS_NVIC_SHCSR_MASK          ,   0xC00
+.equ OS_NVIC_FSR,           0xE000ED28      //include BusFault/MemFault/UsageFault State Register
+.equ OS_NVIC_HFSR,          0xE000ED2C      //HardFault State Register
+.equ OS_NVIC_BFAR,          0xE000ED38
+.equ OS_NVIC_MMAR,          0xE000ED34
+.equ OS_NVIC_ACT_BASE,      0xE000E300
+.equ OS_NVIC_SHCSRS,        0xE000ED24
+.equ OS_NVIC_SHCSR_MASK,    0xC00
 
     .type HalExcNMI, %function
     .global HalExcNMI
@@ -155,10 +155,25 @@ HalExcSvcCall:
     .cantunwind
     TST   LR, #0x4
     ITE   EQ
-    MRSEQ R0, MSP
-    MRSNE R0, PSP
-    LDR   R1, [R0,#24]
-    LDRB  R0, [R1,#-2]
+    MRSEQ R1, MSP
+    BNE   _svcCallFromPsp
+    B     _svcCall
+_svcCallFromPsp:
+#ifdef LOSCFG_SECURE
+    PUSH  {R0-R12, LR}
+    MOV   R0, SP
+    CPSIE I
+    BL    OsSyscallHandle
+    CPSID I
+    MRS   R12, PSP
+    STM   R12, {R0-R1}
+    POP   {R0-R12, LR}
+    BX    LR
+#endif
+    MRS   R1, PSP
+_svcCall:
+    LDR   R0, [R1,#24]
+    LDRB  R0, [R0,#-2]
     MOV   R1, #0
     B     osExcDispatch
     .fnend
@@ -263,7 +278,7 @@ _hwiActiveCheck:
     CMP   R3, #0
     BEQ   _hwiActiveCheckNext
 
-    // exc occured in IRQ
+    // exc occurred in IRQ
     ORR   R0, R0, #FLAG_HWI_ACTIVE
     RBIT  R2, R3
     CLZ   R2, R2
@@ -284,7 +299,7 @@ _ExcInMSP:
     PUSH {R4-R12}                       // store message-->exc: {R4-R12}
     VPUSH {D8-D15}                      // FPU
     B     _handleEntry
-  .fnend
+    .fnend
 
     .type _NoFloatInMsp, %function
     .global _NoFloatInMsp
@@ -298,7 +313,7 @@ _NoFloatInMsp:
     PUSH {R4-R12}                        // store message-->exc: {R4-R12}
     ORR   R0, R0, #FLAG_NO_FLOAT
     B     _handleEntry
-  .fnend
+    .fnend
 
     .type _hwiActiveCheckNext, %function
     .global _hwiActiveCheckNext
@@ -316,19 +331,19 @@ _hwiActiveCheckNext:
     AND   R2, R2,R3
     CMP   R2,#0
     BNE   _ExcInMSP
-    // exc occured in Task or Init or exc
+    // exc occurred in Task or Init or exc
     // reserved for register info from task stack
 
     LDR  R2, =g_taskScheduled
     LDR  R2, [R2]
     TST  R2, #1                         // OS_FLG_BGD_ACTIVE
-    BEQ  _ExcInMSP                      // if exc occured in Init then branch
+    BEQ  _ExcInMSP                      // if exc occurred in Init then branch
 
 
     CMP   LR, #0xFFFFFFED               //auto push floating registers
     BNE   _NoFloatInPsp
 
-    // exc occured in Task
+    // exc occurred in Task
     MOV   R2,  R13
     SUB   R13, #96                      // add 8 Bytes reg(for STMFD)
 
@@ -347,7 +362,7 @@ _hwiActiveCheckNext:
     VSTMDB  R2!, {D8-D15}               // FPU
     STMFD R2!, {R4-R11}
     B     _handleEntry
-  .fnend
+    .fnend
 
     .type _NoFloatInPsp, %function
     .global _NoFloatInPsp
@@ -367,7 +382,7 @@ _NoFloatInPsp:
     LDMFD R3, {R4-R11}                  // R4-R11 store PSP reg(auto push when exc in task)
     STMFD R2!, {R4-R11}
     ORR   R0, R0, #FLAG_NO_FLOAT
-  .fnend
+    .fnend
 
     .type _handleEntry, %function
     .global _handleEntry
@@ -380,4 +395,4 @@ _handleEntry:
     B  HalExcHandleEntry
 
     NOP
-  .fnend
+    .fnend

arch/arm/cortex-m4/gcc/los_interrupt.c

@@ -40,11 +40,8 @@
 #include "los_memory.h"
 #include "los_membox.h"
 
-/*lint -save -e40 -e522 -e533*/
 UINT32 g_intCount = 0;
 
-/*lint -restore*/
-
 /* *
  * @ingroup los_hwi
  * Hardware interrupt form mapping handling function array.
@@ -193,7 +190,6 @@ inline UINT32 ArchIsIntActive(VOID)
  Output      : None
  Return      : None
  **************************************************************************** */
-/*lint -e529*/
 LITE_OS_SEC_TEXT_MINOR VOID HalHwiDefaultHandler(VOID)
 {
     PRINT_ERR("%s irqnum:%u\n", __FUNCTION__, HwiNumGet());
@@ -607,7 +603,7 @@ LITE_OS_SEC_TEXT_INIT VOID HalHwiInit(VOID)
 
     /* Enable USGFAULT, BUSFAULT, MEMFAULT */
     *(volatile UINT32 *)OS_NVIC_SHCSR |= (USGFAULT | BUSFAULT | MEMFAULT);
-	
+
     /* Enable DIV 0 and unaligned exception */
 #ifdef LOSCFG_ARCH_UNALIGNED_EXC
     *(volatile UINT32 *)OS_NVIC_CCR |= (DIV0FAULT | UNALIGNFAULT);

arch/arm/cortex-m4/iar/los_exc.S

@@ -190,7 +190,7 @@ _hwiActiveCheck
     CMP   R3, #0
     BEQ   _hwiActiveCheckNext
 
-    ; exc occured in IRQ
+    ; exc occurred in IRQ
     ORR   R0, R0, #FLAG_HWI_ACTIVE
     RBIT  R2, R3
     CLZ   R2, R2
@@ -228,19 +228,19 @@ _hwiActiveCheckNext
     AND   R2, R2,R3
     CMP   R2,#0
     BNE   _ExcInMSP
-    ; exc occured in Task or Init or exc
+    ; exc occurred in Task or Init or exc
     ; reserved for register info from task stack
 
     LDR  R2, =g_taskScheduled
     LDR  R2, [R2]
     TST  R2, #1         ; OS_FLG_BGD_ACTIVE
-    BEQ  _ExcInMSP                      ; if exc occured in Init then branch
+    BEQ  _ExcInMSP                      ; if exc occurred in Init then branch
 
 
     CMP   LR, #0xFFFFFFED               ;auto push floating registers
     BNE   _NoFloatInPsp
 
-    ; exc occured in Task
+    ; exc occurred in Task
     MOV   R2,  R13
     SUB   R13, #96                      ; add 8 Bytes reg(for STMFD)
 

arch/arm/cortex-m4/iar/los_interrupt.c

@@ -41,13 +41,11 @@
 #include "los_memory.h"
 #include "los_membox.h"
 
-/*lint -save -e40 -e522 -e533*/
 UINT32 g_intCount = 0;
 
-/*lint -restore*/
 #ifdef __ICCARM__
 #pragma location = ".data.vector"
-#pragma data_alignment=LOSCFG_ARCH_HWI_VECTOR_ALIGN
+#pragma data_alignment = LOSCFG_ARCH_HWI_VECTOR_ALIGN
 #elif defined(__CC_ARM) || defined(__GNUC__)
 LITE_OS_SEC_VEC
 #endif
@@ -603,7 +601,7 @@ LITE_OS_SEC_TEXT_INIT VOID HalHwiInit(VOID)
 
     /* Enable USGFAULT, BUSFAULT, MEMFAULT */
     *(volatile UINT32 *)OS_NVIC_SHCSR |= (USGFAULT | BUSFAULT | MEMFAULT);
-	
+
     /* Enable DIV 0 and unaligned exception */
 #ifdef LOSCFG_ARCH_UNALIGNED_EXC
     *(volatile UINT32 *)OS_NVIC_CCR |= (DIV0FAULT | UNALIGNFAULT);

arch/arm/cortex-m55/gcc/NTZ/los_exc.S

@@ -260,7 +260,7 @@ _hwiActiveCheck:
     CMP   R3, #0
     BEQ   _hwiActiveCheckNext
 
-    // exc occured in IRQ
+    // exc occurred in IRQ
     ORR   R0, R0, #FLAG_HWI_ACTIVE
     RBIT  R2, R3
     CLZ   R2, R2
@@ -313,19 +313,19 @@ _hwiActiveCheckNext:
     AND   R2, R2, R3
     CMP   R2, #0
     BNE   _ExcInMSP
-    // exc occured in Task or Init or exc
+    // exc occurred in Task or Init or exc
     // reserved for register info from task stack
 
     LDR   R2, =g_taskScheduled
     LDR   R2, [R2]
     TST   R2, #1                         // OS_FLG_BGD_ACTIVE
-    BEQ   _ExcInMSP                      // if exc occured in Init then branch
+    BEQ   _ExcInMSP                      // if exc occurred in Init then branch
 
 
     CMP   LR, #0xFFFFFFED                //auto push floating registers
     BNE   _NoFloatInPsp
 
-    // exc occured in Task
+    // exc occurred in Task
     MOV   R2, R13
     SUB   R13, #96                       // add 8 Bytes reg(for STMFD)
 

arch/arm/cortex-m55/gcc/NTZ/los_interrupt.c

@@ -40,10 +40,8 @@
 #include "los_membox.h"
 
 #define DEF_HANDLER_START_INDEX 2
-/*lint -save -e40 -e522 -e533*/
 UINT32 g_intCount = 0;
 
-/*lint -restore*/
 
 /* *
  * @ingroup los_hwi
@@ -193,7 +191,6 @@ inline UINT32 ArchIsIntActive(VOID)
  Output      : None
  Return      : None
  **************************************************************************** */
-/*lint -e529*/
 LITE_OS_SEC_TEXT_MINOR VOID HalHwiDefaultHandler(VOID)
 {
     PRINT_ERR("%s irqnum:%u\n", __FUNCTION__, HwiNumGet());

arch/arm/cortex-m7/gcc/los_dispatch.S

@@ -137,7 +137,7 @@ ArchTaskSchedule:
     dsb
     isb
     bx      lr
-   .fnend
+    .fnend
 
     .type HalPendSV, %function
     .global HalPendSV
@@ -178,7 +178,7 @@ TaskContextSwitch:
     str     r0, [r5]
     ldr     r1, [r0]
 
- SignalContextRestore:
+SignalContextRestore:
 #if ((defined(__FPU_PRESENT) && (__FPU_PRESENT == 1U)) && \
      (defined(__FPU_USED) && (__FPU_USED == 1U)))
     vldmia   r1!, {d8-d15}

arch/arm/cortex-m7/gcc/los_exc.S

@@ -29,9 +29,9 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
- .syntax unified
- .arch armv7e-m
- .thumb
+.syntax unified
+.arch armv7e-m
+.thumb
 .fpu fpv5-d16
 .section .text
 
@@ -263,7 +263,7 @@ _hwiActiveCheck:
     CMP   R3, #0
     BEQ   _hwiActiveCheckNext
 
-    // exc occured in IRQ
+    // exc occurred in IRQ
     ORR   R0, R0, #FLAG_HWI_ACTIVE
     RBIT  R2, R3
     CLZ   R2, R2
@@ -284,7 +284,7 @@ _ExcInMSP:
     PUSH {R4-R12}                       // store message-->exc: {R4-R12}
     VPUSH {D8-D15}
     B     _handleEntry
-  .fnend
+    .fnend
 
     .type _NoFloatInMsp, %function
     .global _NoFloatInMsp
@@ -298,7 +298,7 @@ _NoFloatInMsp:
     PUSH {R4-R12}                       // store message-->exc: {R4-R12}
     ORR   R0, R0, #FLAG_NO_FLOAT
     B     _handleEntry
-  .fnend
+    .fnend
 
     .type _hwiActiveCheckNext, %function
     .global _hwiActiveCheckNext
@@ -316,19 +316,19 @@ _hwiActiveCheckNext:
     AND   R2, R2,R3
     CMP   R2,#0
     BNE   _ExcInMSP
-    // exc occured in Task or Init or exc
+    // exc occurred in Task or Init or exc
     // reserved for register info from task stack
 
     LDR  R2, =g_taskScheduled
     LDR  R2, [R2]
     TST  R2, #1                         // OS_FLG_BGD_ACTIVE
-    BEQ  _ExcInMSP                      // if exc occured in Init then branch
+    BEQ  _ExcInMSP                      // if exc occurred in Init then branch
 
 
     CMP   LR, #0xFFFFFFED               //auto push floating registers
     BNE   _NoFloatInPsp
 
-    // exc occured in Task
+    // exc occurred in Task
     MOV   R2,  R13
     SUB   R13, #96                      // add 8 Bytes reg(for STMFD)
 
@@ -347,7 +347,7 @@ _hwiActiveCheckNext:
     VSTMDB  R2!, {D8-D15}
     STMFD R2!, {R4-R11}
     B     _handleEntry
-  .fnend
+    .fnend
 
     .type _NoFloatInPsp, %function
     .global _NoFloatInPsp
@@ -367,7 +367,7 @@ _NoFloatInPsp:
     LDMFD R3, {R4-R11}                  // R4-R11 store PSP reg(auto push when exc in task)
     STMFD R2!, {R4-R11}
     ORR   R0, R0, #FLAG_NO_FLOAT
-  .fnend
+    .fnend
 
     .type _handleEntry, %function
     .global _handleEntry
@@ -380,5 +380,5 @@ _handleEntry:
     B  HalExcHandleEntry
 
     NOP
-  .fnend
+    .fnend
 

arch/arm/cortex-m7/gcc/los_interrupt.c

@@ -40,11 +40,8 @@
 #include "los_memory.h"
 #include "los_membox.h"
 
-/*lint -save -e40 -e522 -e533*/
 UINT32 g_intCount = 0;
 
-/*lint -restore*/
-
 /* *
  * @ingroup los_hwi
  * Hardware interrupt form mapping handling function array.
@@ -188,7 +185,6 @@ inline UINT32 ArchIsIntActive(VOID)
  Output      : None
  Return      : None
  **************************************************************************** */
-/*lint -e529*/
 LITE_OS_SEC_TEXT_MINOR VOID HalHwiDefaultHandler(VOID)
 {
     PRINT_ERR("%s irqnum:%u\n", __FUNCTION__, HwiNumGet());
@@ -592,7 +588,7 @@ LITE_OS_SEC_TEXT_INIT VOID HalHwiInit(VOID)
 
     /* Enable USGFAULT, BUSFAULT, MEMFAULT */
     *(volatile UINT32 *)OS_NVIC_SHCSR |= (USGFAULT | BUSFAULT | MEMFAULT);
-	
+
     /* Enable DIV 0 and unaligned exception */
 #ifdef LOSCFG_ARCH_UNALIGNED_EXC
     *(volatile UINT32 *)OS_NVIC_CCR |= (DIV0FAULT | UNALIGNFAULT);

arch/arm/cortex-m7/iar/los_exc.S

@@ -190,7 +190,7 @@ _hwiActiveCheck
     CMP   R3, #0
     BEQ   _hwiActiveCheckNext
 
-    ; exc occured in IRQ
+    ; exc occurred in IRQ
     ORR   R0, R0, #FLAG_HWI_ACTIVE
     RBIT  R2, R3
     CLZ   R2, R2
@@ -228,19 +228,19 @@ _hwiActiveCheckNext
     AND   R2, R2,R3
     CMP   R2,#0
     BNE   _ExcInMSP
-    ; exc occured in Task or Init or exc
+    ; exc occurred in Task or Init or exc
     ; reserved for register info from task stack
 
     LDR  R2, =g_taskScheduled
     LDR  R2, [R2]
     TST  R2, #1         ; OS_FLG_BGD_ACTIVE
-    BEQ  _ExcInMSP                      ; if exc occured in Init then branch
+    BEQ  _ExcInMSP                      ; if exc occurred in Init then branch
 
 
     CMP   LR, #0xFFFFFFED               ;auto push floating registers
     BNE   _NoFloatInPsp
 
-    ; exc occured in Task
+    ; exc occurred in Task
     MOV   R2,  R13
     SUB   R13, #96                      ; add 8 Bytes reg(for STMFD)
 

arch/arm/cortex-m7/iar/los_interrupt.c

@@ -41,12 +41,10 @@
 #include "los_memory.h"
 #include "los_membox.h"
 
-/*lint -save -e40 -e522 -e533*/
 UINT32 g_intCount = 0;
 
-/*lint -restore*/
 #pragma location = ".data.vector"
-#pragma data_alignment=LOSCFG_ARCH_HWI_VECTOR_ALIGN
+#pragma data_alignment = LOSCFG_ARCH_HWI_VECTOR_ALIGN
 /* *
  * @ingroup los_hwi
  * Hardware interrupt form mapping handling function array.
@@ -599,7 +597,7 @@ LITE_OS_SEC_TEXT_INIT VOID HalHwiInit(VOID)
 
     /* Enable USGFAULT, BUSFAULT, MEMFAULT */
     *(volatile UINT32 *)OS_NVIC_SHCSR |= (USGFAULT | BUSFAULT | MEMFAULT);
-	
+
     /* Enable DIV 0 and unaligned exception */
     *(volatile UINT32 *)OS_NVIC_CCR |= (DIV0FAULT | UNALIGNFAULT);
 

arch/csky/v2/gcc/los_arch_context.h

@@ -59,13 +59,33 @@ typedef struct TagTskContext {
     UINT32 R12;
     UINT32 R13;
     UINT32 R15;
+#ifdef CPU_CK804
+    UINT32 R16;
+    UINT32 R17;
+    UINT32 R18;
+    UINT32 R19;
+    UINT32 R20;
+    UINT32 R21;
+    UINT32 R22;
+    UINT32 R23;
+    UINT32 R24;
+    UINT32 R25;
+    UINT32 R26;
+    UINT32 R27;
+    UINT32 R28;
+    UINT32 R29;
+    UINT32 R30;
+    UINT32 R31;
+#endif
     UINT32 EPSR;
     UINT32 EPC;
 } TaskContext;
 
 VOID HalStartToRun(VOID);
 VOID HalTaskContextSwitch(VOID);
+#ifndef CPU_CK804
 VOID HalIrqEndCheckNeedSched(VOID);
+#endif
 
 #ifdef __cplusplus
 #if __cplusplus

arch/csky/v2/gcc/los_arch_interrupt.h

@@ -82,7 +82,7 @@ typedef VOID (**HWI_VECTOR_FUNC)(VOID);
  * @ingroup los_arch_interrupt
  * Count of interrupts.
  */
-extern UINT32 g_intCount;
+extern volatile UINT32 g_intCount;
 
 /* *
  * @ingroup los_arch_interrupt

arch/csky/v2/gcc/los_context.c

@@ -38,7 +38,9 @@
 #include "los_interrupt.h"
 #include "los_debug.h"
 
+#ifndef CPU_CK804
 STATIC UINT32 g_sysNeedSched = FALSE;
+#endif
 
 /* ****************************************************************************
  Function    : ArchInit
@@ -93,8 +95,29 @@ LITE_OS_SEC_TEXT_INIT VOID *ArchTskStackInit(UINT32 taskID, UINT32 stackSize, VO
     context->R11 = 0x11111111L;
     context->R12 = 0x12121212L;
     context->R13 = 0x13131313L;
+#ifdef CPU_CK804
+    context->R15 = (UINT32)ArchSysExit;
+    context->R16 = 0x16161616L;
+    context->R17 = 0x17171717L;
+    context->R18 = 0x18181818L;
+    context->R19 = 0x19191919L;
+    context->R20 = 0x20202020L;
+    context->R21 = 0x21212121L;
+    context->R22 = 0x22222222L;
+    context->R23 = 0x23232323L;
+    context->R24 = 0x24242424L;
+    context->R25 = 0x25252525L;
+    context->R26 = 0x26262626L;
+    context->R27 = 0x27272727L;
+    context->R28 = 0x28282828L;
+    context->R29 = 0x29292929L;
+    context->R30 = 0x30303030L;
+    context->R31 = 0x31313131L;
+    context->EPSR = 0x80000340L;
+#else
     context->R15 = (UINT32)ArchSysExit;
     context->EPSR = 0xe0000144L;
+#endif
     context->EPC = (UINT32)OsTaskEntry;
     return (VOID *)context;
 }
@@ -107,6 +130,7 @@ LITE_OS_SEC_TEXT_INIT UINT32 ArchStartSchedule(VOID)
     return LOS_OK; /* never return */
 }
 
+#ifndef CPU_CK804
 VOID HalIrqEndCheckNeedSched(VOID)
 {
     if (g_sysNeedSched && g_taskScheduled && LOS_CHECK_SCHEDULE) {
@@ -132,3 +156,10 @@ VOID ArchTaskSchedule(VOID)
     LOS_IntRestore(intSave);
     return;
 }
+#else
+VOID ArchTaskSchedule(VOID)
+{
+    HalTaskContextSwitch();
+}
+#endif
+

arch/csky/v2/gcc/los_dispatch.S

@@ -32,6 +32,89 @@
 #define OS_TASK_STATUS_RUNNING    0x0010
 #define VIC_TSPDR                 0XE000EC08
 
+#ifdef CPU_CK804
+.section .text
+.align  2
+.type HalStartToRun, %function
+.global HalStartToRun
+HalStartToRun:
+    lrw    r1, g_losTask
+    lrw    r2, g_losTask + 4
+
+    ldw    r0, (r2)
+
+    st.w   r0, (r1)
+    st.w   r0, (r2)
+
+    ldw    sp, (r0)
+
+    ldw    r0, (sp, 128)
+    mtcr   r0, epc
+    ldw    r0, (sp, 124)
+    mtcr   r0, epsr
+    ldw    r15, (sp, 56)
+    ldm    r0-r13, (sp)
+    addi     sp, 60
+    ldm      r16-r31, (sp)
+    addi     sp, 72
+
+    rte
+
+.align  2
+.type HalTaskContextSwitch, %function
+.global HalTaskContextSwitch
+HalTaskContextSwitch:
+    lrw    r0, VIC_TSPDR
+    bgeni  r1, 0
+    stw    r1, (r0)
+    nop
+    nop
+    nop
+    rts
+    
+.align  2
+.type tspend_handler, %function
+.global tspend_handler
+tspend_handler:
+
+    subi   sp, 132
+    stm    r0-r13, (sp)
+    stw    r15, (sp, 56)
+    addi     r0, sp, 60
+    stm      r16-r31, (r0)
+    mfcr     r1, epsr
+    stw    r1, (sp, 124)
+    mfcr     r1, epc
+    stw    r1, (sp, 128)
+
+    jbsr    OsSchedTaskSwitch
+    bez     r0, ret_con
+    
+    lrw    r2, g_losTask
+    ldw    r0, (r2)
+    stw    sp, (r0)
+
+    lrw    r3, g_losTask + 4
+    ldw    r0, (r3)
+    stw    r0, (r2)
+
+    ldw    sp, (r0)
+    
+ ret_con:   
+    ldw    r0, (sp, 128)
+    mtcr   r0, epc
+    ldw    r0, (sp, 124)
+    mtcr   r0, epsr
+    ldw    r15, (sp, 56)
+    ldm    r0-r13, (sp)
+    addi     sp, 60
+    ldm      r16-r31, (sp)
+
+    addi   sp, 72
+
+    rte
+    
+#else
 .section .text
 .align  2
 .type HalStartToRun, %function
@@ -87,3 +170,4 @@ HalTaskContextSwitch:
 
     rte
 
+#endif

arch/csky/v2/gcc/los_exc.S

@@ -32,6 +32,57 @@
 .import HalExcHandleEntry
 .extern g_trapStackBase
 
+#ifdef CPU_CK804
+.section .text
+.align  2
+.global HandleEntry
+HandleEntry:
+    mov    r10, sp
+    lrw    r14, g_trapStackBase
+
+    stm    r0-r15, (sp)
+    stw    r10, (sp, 56)
+    addi     r0, sp, 64
+    stm      r16-r31, (r0)
+    mfcr   r0, epsr
+    stw    r0, (sp, 128)
+    mfcr   r0, epc
+    stw    r0, (sp, 132)
+    mov    r0, sp
+
+    mfcr   r1, epc
+
+    mov    sp, r10
+    lrw    r2, HalExcHandleEntry
+    jmp    r2
+
+.section .text
+.align  2
+.global IrqEntry
+IrqEntry:
+    psrset  ee
+    subi   sp, 136
+    stm    r0-r15, (sp)
+    addi     r0, sp, 64
+    stm      r16-r31, (r0)
+    mfcr   r0, epsr
+    stw    r0, (sp, 128)
+    mfcr   r0, epc
+    stw    r0, (sp, 132)
+
+    jbsr   HalInterrupt
+
+    ldw    r0, (sp, 132)
+    mtcr   r0, epc
+    ldw    r0, (sp, 128)
+    bseti  r0, r0, 6
+    mtcr   r0, epsr
+    ldm    r0-r15, (sp)
+    addi     sp, 64
+    ldm      r16-r31, (sp)
+    addi   sp, 72
+    rte
+#else
 .section .text
 .align  2
 .global HandleEntry
@@ -75,3 +126,4 @@ IrqEntry:
     ldm    r0-r15, (sp)
     addi   sp, 72
     rte
+#endif

arch/csky/v2/gcc/los_interrupt.c

@@ -52,13 +52,12 @@
 #define MASK_8_BITS      0xFF
 #define MASK_32_BITS     0xFFFFFFFF
 #define BYTES_OF_128_INT 4
-#define TIM_INT_NUM      1
 
 #define OS_USER_HWI_MIN                 0
 #define OS_USER_HWI_MAX                 (LOSCFG_PLATFORM_HWI_LIMIT - 1)
 #define HWI_ALIGNSIZE                   0x400
 
-UINT32 g_intCount = 0;
+UINT32 volatile g_intCount = 0;
 CHAR g_trapStackBase[OS_TRAP_STACK_SIZE];
 
 VIC_TYPE *VIC_REG = (VIC_TYPE *)VIC_REG_BASE;
@@ -334,7 +333,9 @@ LITE_OS_SEC_TEXT VOID HalInterrupt(VOID)
 
     intSave = LOS_IntLock();
     g_intCount--;
+#ifndef CPU_CK804
     HalIrqEndCheckNeedSched();
+#endif
     LOS_IntRestore(intSave);
 }
 
@@ -586,6 +587,10 @@ WEAK VOID __stack_chk_fail(VOID)
               __builtin_return_address(0));
 }
 
+WEAK void HalHwiHandleReInit(UINT32 hwiFormAddr)
+{
+}
+
 /* ****************************************************************************
  Function    : HalHwiInit
  Description : initialization of the hardware interrupt
@@ -604,6 +609,7 @@ LITE_OS_SEC_TEXT_INIT VOID HalHwiInit(VOID)
     for (i = OS_SYS_VECTOR_CNT; i < (LOSCFG_PLATFORM_HWI_LIMIT + OS_SYS_VECTOR_CNT); i++) {
         g_hwiForm[i] = (HWI_PROC_FUNC)IrqEntry;
     }
+    HalHwiHandleReInit((UINT32)&g_hwiForm);
 
     HalSetVbr((UINT32)&g_hwiForm);
     for (int i = 0; i < BYTES_OF_128_INT; i++) {

arch/csky/v2/gcc/los_timer.c

@@ -50,7 +50,11 @@ typedef struct {
 #define CORETIM_SOURCE       (1UL << 2)
 #define CORETIM_MODE         (1UL << 16)
 
+#ifdef CPU_CK804
+#define TIM_INT_NUM          25
+#else
 #define TIM_INT_NUM          1
+#endif
 
 STATIC UINT32 SysTickStart(HWI_PROC_FUNC handler);
 STATIC UINT64 SysTickReload(UINT64 nextResponseTime);

arch/risc-v/nuclei/gcc/los_exc.S

@@ -179,7 +179,6 @@ exc_entry:
     csrr a0, mcause
     mv a1, sp
     /*
-     * TODO: Call the exception handler function
      * By default, the function template is provided in
      * system_Device.c, you can adjust it as you want
      */

arch/risc-v/nuclei/gcc/nmsis/Core/Include/core_feature_dsp.h

@@ -105,7 +105,7 @@
  * Based on the types of the four 8-bit arithmetic operations, the SIMD 8-bit add/subtract instructions
  * can be classified into 2 main categories: Addition (four 8-bit addition), and Subtraction (four 8-bit
  * subtraction).
- * Based on the way of how an overflow condition is handled for singed or unsigned operation, the
+ * Based on the way of how an overflow condition is handled for signed or unsigned operation, the
  * SIMD 8-bit add/subtract instructions can be classified into 5 groups: Wrap-around (dropping
  * overflow), Signed Halving (keeping overflow by dropping 1 LSB bit), Unsigned Halving, Signed
  * Saturation (clipping overflow), and Unsigned Saturation.

arch/risc-v/riscv32/gcc/los_arch_atomic.h

@@ -33,6 +33,7 @@
 #define _LOS_ARCH_ATOMIC_H
 
 #include "los_compiler.h"
+#include "los_interrupt.h"
 
 #ifdef __cplusplus
 #if __cplusplus

arch/risc-v/riscv32/gcc/los_interrupt.c

@@ -332,7 +332,7 @@ VOID HalExcEntry(const LosExcContext *excBufAddr)
     ExcInfoDisplay(excBufAddr);
 
     if (LOS_TaskIsRunning()) {
-        PRINTK("----------------All Task infomation ------------\n");
+        PRINTK("----------------All Task information ------------\n");
         OsGetAllTskInfo();
     }
 

arch_spec.md

@@ -48,7 +48,9 @@
 │   ├── lms                                                     --- Lite memory sanitizer functions
 │   ├── net                                                     --- Networking functions
 │   ├── power                                                   --- Power management
+│   ├── security                                                --- Security isolation
 │   ├── shell                                                   --- Shell function
+│   ├── signal                                                  --- Signal support
 │   ├── fs                                                      --- File systems
 │   └── trace                                                   --- Trace tool
 ├── drivers                                                     --- driver Kconfig
@@ -71,14 +73,13 @@
 │   │   └── los_tick.h                                          --- Tick
 │   └── src
 ├── targets
-│   └── targets
-│       └── riscv_nuclei_demo_soc_gcc
-│       │   ├── GCC                                            --- Compilation config
-│       │   ├── OS_CONFIG                                      --- Board config
-│       │   ├── SoC                                            --- SOC codes
-│       │   └── Src                                            --- Application codes
-│       └── riscv_nuclei_gd32vf103_soc_gcc
-│       └── riscv_sifive_fe310_gcc
+│   └── riscv_nuclei_demo_soc_gcc
+│   │   ├── GCC                                            --- Compilation config
+│   │   ├── OS_CONFIG                                      --- Board config
+│   │   ├── SoC                                            --- SOC codes
+│   │   └── Src                                            --- Application codes
+│   └── riscv_nuclei_gd32vf103_soc_gcc
+│   └── riscv_sifive_fe310_gcc
 ├── testsuites                                                 --- Kernel testsuites
 ├── tools                                                      --- Kernel tools
 └── utils

arch_spec_zh.md

@@ -48,7 +48,9 @@
 │   ├── lms                                                     --- Lite memory sanitizer 机制
 │   ├── net                                                     --- Network功能
 │   ├── power                                                   --- 低功耗管理
+│   ├── security                                                --- 安全隔离
 │   ├── shell                                                   --- shell功能
+│   ├── signal                                                  --- signal支持
 │   └── trace                                                   --- trace 工具
 ├── drivers                                                     --- 驱动框架Kconfig
 ├── kal                                                         --- 内核抽象层，提供内核对外接口，当前支持CMSIS接口和部分POSIX接口
@@ -70,14 +72,13 @@
 │   │   └── los_tick.h                                          --- Tick时钟
    └── src
 ├── targets
-│   └── targets
-│       └── riscv_nuclei_demo_soc_gcc
-│       │   ├── GCC                                             --- 编译相关
-│       │   ├── OS_CONFIG                                       --- 开发板配置功能开关和配置参数
-│       │   ├── SoC                                             --- SOC相关代码
-│       │   └── Src                                             --- Application相关代码
-│       └── riscv_nuclei_gd32vf103_soc_gcc
-│       └── riscv_sifive_fe310_gcc
+│   └── riscv_nuclei_demo_soc_gcc
+│   │   ├── GCC                                             --- 编译相关
+│   │   ├── OS_CONFIG                                       --- 开发板配置功能开关和配置参数
+│   │   ├── SoC                                             --- SOC相关代码
+│   │   └── Src                                             --- Application相关代码
+│   └── riscv_nuclei_gd32vf103_soc_gcc
+│   └── riscv_sifive_fe310_gcc
 ├── testsuites                                                  --- 内核测试用例
 ├── tools                                                       --- 内核工具
 └── utils

components/BUILD.gn

@@ -1,5 +1,5 @@
 # Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
-# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2022 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:
@@ -41,6 +41,7 @@ group("components") {
     "lms",
     "net",
     "power",
+    "security",
     "shell",
     "signal",
     "trace",
@@ -57,6 +58,7 @@ config("public") {
     "fs:public",
     "net:public",
     "power:public",
+    "security:public",
     "shell:public",
     "trace:public",
     "lmk:public",

components/backtrace/los_backtrace.h

@@ -52,8 +52,8 @@ extern "C" {
 #define CODE_SECTION_NAME    ".text"
 /* The default C stack section name is CSTACK */
 #define CSTACK_SECTION_NAME  "CSTACK"
-#pragma section=CODE_SECTION_NAME
-#pragma section=CSTACK_SECTION_NAME
+#pragma section = CODE_SECTION_NAME
+#pragma section = CSTACK_SECTION_NAME
 
 /* Default only one code section. In fact, there may be more than one.
    You can define more than one and redefine the OsStackDataIsCodeAddr function

components/cpup/los_cpup.c

@@ -82,7 +82,7 @@ LITE_OS_SEC_TEXT_INIT UINT32 OsCpupInit()
 
 /*****************************************************************************
 Function   : OsTskCycleStart
-Description: start task to get cycles count in current task begining
+Description: start task to get cycles count in current task beginning
 Input      : None
 Return     : None
 *****************************************************************************/

components/dynlink/los_dynlink.c

@@ -73,8 +73,8 @@ const SymInfo symTableEnd __attribute__((section(".table.end"))) = {
     .name = "end",
     .addr = 0
 };
-#pragma section=".TABLE.START"
-#pragma section=".table.end"
+#pragma section = ".TABLE.START"
+#pragma section = ".table.end"
 #elif defined(__CLANG_ARM) || defined(__GNUC__)
 /**
  * Place instructions below in rodata segment of .ld linker file:
@@ -796,13 +796,13 @@ VOID *LOS_SoLoad(const CHAR *fileName, VOID *pool)
     return dso;
 
 ERR2:
-    LOS_MemFree(dso->pool, (VOID *)dso->loadBase);
+    (VOID)LOS_MemFree(dso->pool, (VOID *)dso->loadBase);
 ERR1:
     close(dso->fd);
     (VOID)LOS_MuxPost(g_dynlinkMux);
-    LOS_MemFree(OS_SYS_MEM_ADDR, dso->dlInfo->elfPhdr);
-    LOS_MemFree(OS_SYS_MEM_ADDR, dso->dlInfo);
-    LOS_MemFree(OS_SYS_MEM_ADDR, dso);
+    (VOID)LOS_MemFree(OS_SYS_MEM_ADDR, dso->dlInfo->elfPhdr);
+    (VOID)LOS_MemFree(OS_SYS_MEM_ADDR, dso->dlInfo);
+    (VOID)LOS_MemFree(OS_SYS_MEM_ADDR, dso);
     return NULL;
 }
 
@@ -902,9 +902,12 @@ INT32 LOS_SoUnload(VOID *handle)
     LOS_ListDelete(&dso->dsoNode);
     (VOID)LOS_MuxPost(g_dynlinkMux);
 
-    LOS_MemFree(dso->pool, (VOID *)dso->loadBase);
-    LOS_MemFree(OS_SYS_MEM_ADDR, dso->dlInfo);
-    LOS_MemFree(OS_SYS_MEM_ADDR, dso);
+    (VOID)LOS_MemFree(dso->pool, (VOID *)dso->loadBase);
+    if (dso->dlInfo != NULL) {
+        (VOID)LOS_MemFree(OS_SYS_MEM_ADDR, dso->dlInfo->elfPhdr);
+    }
+    (VOID)LOS_MemFree(OS_SYS_MEM_ADDR, dso->dlInfo);
+    (VOID)LOS_MemFree(OS_SYS_MEM_ADDR, dso);
 
     return LOS_OK;
 ERR:

components/dynlink/los_dynlink.h

@@ -169,7 +169,7 @@ VOID *LOS_SoLoad(const CHAR *fileName, VOID *pool);
 VOID *LOS_FindSym(VOID *handle, const CHAR *name);
 
 /*
- * @brief Decrement the reference count on the loaded shared library refered to by handle.
+ * @brief Decrement the reference count on the loaded shared library referred to by handle.
  * If the reference count drops to zero, then the library is unloaded.
  *
  * This function validates that the handle is valid.

components/exchook/los_exc_info.c

@@ -55,7 +55,7 @@ STATIC ExcInfoArray g_excArray[OS_EXC_TYPE_MAX];
 
 STATIC UINT32 OsExcSaveIntStatus(UINT32 type, VOID *arg)
 {
-    UINT32 ret;
+    errno_t ret;
     UINTPTR excContentEnd = (UINTPTR)MAX_INT_INFO_SIZE + (UINTPTR)g_excContent;
 
     (VOID)arg;
@@ -92,6 +92,9 @@ STATIC UINT32 OsExcSaveIntStatus(UINT32 type, VOID *arg)
     /* save IRQ Priority reg group */
     ret = memcpy_s(g_excContent, excContentEnd - (UINTPTR)g_excContent,
                    (const VOID *)OS_NVIC_PRI_BASE, OS_NVIC_INT_PRI_SIZE);
+    if (ret != EOK) {
+        return LOS_NOK;
+    }
     g_excContent = (UINT8 *)g_excContent + OS_NVIC_INT_PRI_SIZE;
 
     /* save Exception Priority reg group */
@@ -294,5 +297,3 @@ VOID OsExcMsgDumpInit(VOID)
     (VOID)LOS_RegExcHook(EXC_INTERRUPT, (ExcHookFn)OsExcMsgDump);
 }
 #endif
-
-

components/fs/fatfs/Kconfig

@@ -36,39 +36,3 @@ config FS_FAT
     help
       Answer Y to enable LiteOS support fat filesystem.
 
-config FS_FAT_CACHE
-    bool "Enable FAT Cache"
-    default y
-    depends on FS_FAT
-    help
-      Answer Y to enable LiteOS fat filesystem support cache.
-
-config FS_FAT_CACHE_SYNC_THREAD
-    bool "Enable FAT Cache Sync Thread"
-    default n
-    depends on FS_FAT_CACHE
-    help
-      Answer Y to enable LiteOS fat filesystem support cache sync thread.
-
-config FS_FAT_CHINESE
-    bool "Enable Chinese"
-    default y
-    depends on FS_FAT
-    help
-      Answer Y to enable LiteOS fat filesystem support Chinese.
-
-config FS_FAT_VIRTUAL_PARTITION
-    bool "Enabel Virtual Partition"
-    default n
-    depends on FS_FAT
-
-config FS_FAT_VOLUMES
-    int
-    depends on FS_FAT
-    default 32 if PLATFORM_HI3731
-    default 16
-
-config FS_FAT_DISK
-    bool "Enable partinfo for storage device"
-    depends on FS_FAT
-    default y

components/fs/fatfs/fatfs.h

@@ -32,14 +32,7 @@
 #ifndef _FATFS_H
 #define _FATFS_H
 
-#include "dirent.h"
-#include "fatfs_conf.h"
-#include "fcntl.h"
-#include "fs_config.h"
-#include "sys/mount.h"
-#include "sys/stat.h"
-#include "sys/statfs.h"
-#include "unistd.h"
+#include "ff.h"
 
 #ifdef __cplusplus
 #if __cplusplus
@@ -47,58 +40,7 @@ extern "C" {
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-int fatfs_mount(const char *source, const char *target,
-          const char *filesystemtype, unsigned long mountflags,
-          const void *data);
-int fatfs_umount(const char *target);
-int fatfs_umount2(const char *target, int flag);
-int fatfs_open(const char *path, int oflag, ...);
-int fatfs_close(int fd);
-ssize_t fatfs_read(int fd, void *buf, size_t nbyte);
-ssize_t fatfs_write(int fd, const void *buf, size_t nbyte);
-off_t fatfs_lseek(int fd, off_t offset, int whence);
-int fatfs_unlink(const char *path);
-int fatfs_fstat(int fd, struct stat *buf);
-int fatfs_stat(const char *path, struct stat *buf);
-int fatfs_fsync(int fd);
-int fatfs_mkdir(const char *path, mode_t mode);
-DIR *fatfs_opendir(const char *dirName);
-struct dirent *fatfs_readdir(DIR *dir);
-int fatfs_closedir(DIR *dir);
-int fatfs_rmdir(const char *path);
-int fatfs_rename(const char *oldName, const char *newName);
-int fatfs_statfs(const char *path, struct statfs *buf);
-int fatfs_ftruncate(int fd, off_t length);
-ssize_t fatfs_pread(int fd, void *buf, size_t nbyte, off_t offset);
-ssize_t fatfs_pwrite(int fd, const void *buf, size_t nbyte, off_t offset);
-
-/**
-  * @brief divide a physical drive (SD card, U disk, and MMC card), this function is OHOS-specific
-  * @param pdrv physical drive number.
-  * @param partTbl list of partition size to create on the drive.
-  *   -- item is <= 100: specifies the partition size in percentage of the entire drive space.
-  *   -- item is > 100: specifies number of sectors.
-  * @return fdisk result
-  * @retval -1 fdisk error
-  * @retval 0 fdisk successful
-  */
-int fatfs_fdisk(int pdrv, const unsigned int *partTbl);
-
-/**
-  * @brief format FAT device (SD card, U disk, and MMC card), this function is OHOS-specific
-  * @param dev device name.
-  * @param sectors sectors per cluster, can be 0 OR power of 2. The sector size for standard FAT volumes is 512 bytes.
-  *    -- sector number is 0 OR >128: automatically choose the appropriate cluster size.
-  *    -- sector number is 1 ~ 128: cluster size = sectors per cluster * 512B.
-  * @param option file system type.
-  *    -- FMT_FAT
-  *    -- FMT_FAT32
-  *    -- FMT_ANY
-  * @return format result
-  * @retval -1 format error
-  * @retval 0 format successful
-  */
-int fatfs_format(const char *dev, int sectors, int option);
+void FatFsInit(void);
 
 #ifdef __cplusplus
 #if __cplusplus

components/fs/littlefs/BUILD.gn

@@ -34,7 +34,7 @@ module_switch = defined(LOSCFG_FS_LITTLEFS)
 module_name = get_path_info(rebase_path("."), "name")
 kernel_module(module_name) {
   configs += [ "$LITEOSTOPDIR:warn_config" ]
-  sources = LITTLEFS_SRC_FILES_FOR_KERNEL_MODULE + [ "lfs_api.c" ]
+  sources = LITTLEFS_SRC_FILES_FOR_KERNEL_MODULE + [ "lfs_adapter.c" ]
 }
 
 config("public") {

components/fs/littlefs/lfs_adapter.c

@@ -0,0 +1,596 @@
+/*
+ * 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.
+ */
+
+#define _GNU_SOURCE 1
+#include "lfs_adapter.h"
+#include "los_config.h"
+#include "vfs_files.h"
+#include "vfs_operations.h"
+#include "vfs_partition.h"
+#include "vfs_maps.h"
+#include "vfs_mount.h"
+#include "securec.h"
+
+struct dirent g_nameValue;
+static pthread_mutex_t g_FslocalMutex = PTHREAD_MUTEX_INITIALIZER;
+
+static int ConvertFlagToLfsOpenFlag (int oflags)
+{
+    int lfsOpenFlag = 0;
+
+    if (oflags & O_CREAT) {
+        lfsOpenFlag |= LFS_O_CREAT;
+    }
+
+    if (oflags & O_EXCL) {
+        lfsOpenFlag |= LFS_O_EXCL;
+    }
+
+    if (oflags & O_TRUNC) {
+        lfsOpenFlag |= LFS_O_TRUNC;
+    }
+
+    if (oflags & O_APPEND) {
+        lfsOpenFlag |= LFS_O_APPEND;
+    }
+
+    if (oflags & O_RDWR) {
+        lfsOpenFlag |= LFS_O_RDWR;
+    }
+
+    if (oflags & O_WRONLY) {
+        lfsOpenFlag |= LFS_O_WRONLY;
+    }
+
+    if (oflags == O_RDONLY) {
+        lfsOpenFlag |= LFS_O_RDONLY;
+    }
+
+    return lfsOpenFlag;
+}
+
+static int LittlefsErrno(int result)
+{
+    return (result < 0) ? -result : result;
+}
+
+int LfsMount(struct MountPoint *mp, unsigned long mountflags, const void *data)
+{
+    int ret;
+    lfs_t *mountHdl = NULL;
+
+    if ((mp == NULL) || (mp->mPath == NULL) || (data == NULL)) {
+        errno = EFAULT;
+        ret = LOS_NOK;
+        goto errout;
+    }
+
+    mountHdl = (lfs_t *)malloc(sizeof(lfs_t));
+    if (mountHdl == NULL) {
+        errno = ENODEV;
+        ret = LOS_NOK;
+        goto errout;
+    }
+    (void)memset_s(mountHdl, sizeof(lfs_t), 0, sizeof(lfs_t));
+    mp->mData = (void *)mountHdl;
+
+    ret = lfs_mount((lfs_t *)mp->mData, (struct lfs_config *)data);
+    if (ret != 0) {
+        ret = lfs_format((lfs_t *)mp->mData, (struct lfs_config*)data);
+        if (ret == 0) {
+            ret = lfs_mount((lfs_t *)mp->mData, (struct lfs_config*)data);
+        }
+    }
+
+    if (ret != 0) {
+        free(mountHdl);
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+
+errout:
+    return ret;
+}
+
+int LfsUmount(struct MountPoint *mp)
+{
+    int ret;
+
+    if (mp == NULL) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    if (mp->mData == NULL) {
+        errno = ENOENT;
+        return LOS_NOK;
+    }
+
+    ret = lfs_unmount((lfs_t *)mp->mData);
+    if (ret != 0) {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+
+    free(mp->mData);
+    mp->mData = NULL;
+    return ret;
+}
+
+int LfsUnlink(struct MountPoint *mp, const char *fileName)
+{
+    int ret;
+
+    if ((mp == NULL) || (fileName == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    if (mp->mData == NULL) {
+        errno = ENOENT;
+        return LOS_NOK;
+    }
+
+    ret = lfs_remove((lfs_t *)mp->mData, fileName);
+    if (ret != 0) {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+
+    return ret;
+}
+
+int LfsMkdir(struct MountPoint *mp, const char *dirName)
+{
+    int ret;
+
+    if ((dirName == NULL) || (mp == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    if (mp->mData == NULL) {
+        errno = ENOENT;
+        return LOS_NOK;
+    }
+
+    lfs_t *lfs = (lfs_t *)mp->mData;
+
+    ret = lfs_mkdir(lfs, dirName);
+    if (ret != 0) {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+
+    return ret;
+}
+
+int LfsRmdir(struct MountPoint *mp, const char *dirName)
+{
+    int ret;
+    lfs_t *lfs = NULL;
+
+    if (mp == NULL) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    if (mp->mData == NULL) {
+        errno = ENOENT;
+        return LOS_NOK;
+    }
+
+    lfs = (lfs_t *)mp->mData;
+
+    if (dirName == NULL) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    ret = lfs_remove(lfs, dirName);
+    if (ret != 0) {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+
+    return ret;
+}
+
+int LfsOpendir(struct Dir *dir, const char *dirName)
+{
+    int ret;
+
+    if ((dir == NULL) || (dir->dMp == NULL) || (dir->dMp->mData == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    lfs_t *lfs = (lfs_t *)dir->dMp->mData;
+    lfs_dir_t *dirInfo = (lfs_dir_t *)malloc(sizeof(lfs_dir_t));
+    if (dirInfo == NULL) {
+        errno = ENOMEM;
+        return LOS_NOK;
+    }
+
+    (void)memset_s(dirInfo, sizeof(lfs_dir_t), 0, sizeof(lfs_dir_t));
+    ret = lfs_dir_open(lfs, dirInfo, dirName);
+    if (ret != 0) {
+        free(dirInfo);
+        errno = LittlefsErrno(ret);
+        goto errout;
+    }
+
+    dir->dData = dirInfo;
+    dir->dOffset = 0;
+
+    return LOS_OK;
+
+errout:
+    return LOS_NOK;
+}
+
+int LfsReaddir(struct Dir *dir, struct dirent *dent)
+{
+    int ret;
+    struct lfs_info lfsInfo;
+
+    if ((dir == NULL) || (dir->dMp == NULL) || (dir->dMp->mData == NULL) ||
+        (dent == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    if (dir->dData == NULL) {
+        errno = EBADF;
+        return LOS_NOK;
+    }
+
+    lfs_t *lfs = (lfs_t *)dir->dMp->mData;
+    lfs_dir_t *dirInfo = (lfs_dir_t *)dir->dData;
+
+    ret = lfs_dir_read(lfs, dirInfo, &lfsInfo);
+    if (ret == TRUE) {
+        pthread_mutex_lock(&g_FslocalMutex);
+        (void)strncpy_s(dent->d_name, sizeof(dent->d_name), lfsInfo.name, strlen(lfsInfo.name) + 1);
+        if (lfsInfo.type == LFS_TYPE_DIR) {
+            dent->d_type = DT_DIR;
+        } else if (lfsInfo.type == LFS_TYPE_REG) {
+            dent->d_type = DT_REG;
+        }
+
+        dent->d_reclen = lfsInfo.size;
+        pthread_mutex_unlock(&g_FslocalMutex);
+
+        return LOS_OK;
+    }
+
+    if (ret != 0) {
+        errno = LittlefsErrno(ret);
+    }
+
+    return LOS_NOK;
+}
+
+int LfsClosedir(struct Dir *dir)
+{
+    int ret;
+
+    if ((dir == NULL) || (dir->dMp == NULL) || (dir->dMp->mData == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    if (dir->dData == NULL) {
+        errno = EBADF;
+        return LOS_NOK;
+    }
+
+    lfs_t *lfs = (lfs_t *)dir->dMp->mData;
+    lfs_dir_t *dirInfo = (lfs_dir_t *)dir->dData;
+
+    ret = lfs_dir_close(lfs, dirInfo);
+    if (ret != 0) {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+
+    free(dirInfo);
+    dir->dData = NULL;
+
+    return ret;
+}
+
+int LfsOpen(struct File *file, const char *pathName, int openFlag)
+{
+    int ret;
+    lfs_file_t *lfsHandle = NULL;
+
+    if ((pathName == NULL) || (file == NULL) || (file->fMp == NULL) ||
+        (file->fMp->mData == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    lfsHandle = (lfs_file_t *)malloc(sizeof(lfs_file_t));
+    if (lfsHandle == NULL) {
+        errno = ENOMEM;
+        return LOS_NOK;
+    }
+
+    int lfsOpenFlag = ConvertFlagToLfsOpenFlag(openFlag);
+    ret = lfs_file_open((lfs_t *)file->fMp->mData, lfsHandle, pathName, lfsOpenFlag);
+    if (ret != 0) {
+        free(lfsHandle);
+        errno = LittlefsErrno(ret);
+        goto errout;
+    }
+
+    file->fData = (void *)lfsHandle;
+    return ret;
+
+errout:
+    return INVALID_FD;
+}
+
+int LfsRead(struct File *file, char *buf, size_t len)
+{
+    int ret;
+    struct MountPoint *mp = NULL;
+    lfs_file_t *lfsHandle = NULL;
+
+    if (buf == NULL) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    if ((file == NULL) || (file->fData == NULL)) {
+        errno = EBADF;
+        return LOS_NOK;
+    }
+
+    lfsHandle = (lfs_file_t *)file->fData;
+    mp = file->fMp;
+    if ((mp == NULL) || (mp->mData == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    ret = lfs_file_read((lfs_t *)mp->mData, lfsHandle, buf, len);
+    if (ret < 0) {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+    return ret;
+}
+
+int LfsWrite(struct File *file, const char *buf, size_t len)
+{
+    int ret;
+    struct MountPoint *mp = NULL;
+    lfs_file_t *lfsHandle = NULL;
+
+    if (buf == NULL) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    if ((file == NULL) || (file->fData == NULL)) {
+        errno = EBADF;
+        return LOS_NOK;
+    }
+
+    lfsHandle = (lfs_file_t *)file->fData;
+    mp = file->fMp;
+    if ((mp == NULL) || (mp->mData == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    ret = lfs_file_write((lfs_t *)mp->mData, lfsHandle, buf, len);
+    if (ret < 0) {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+    return ret;
+}
+
+off_t LfsSeek(struct File *file, off_t offset, int whence)
+{
+    off_t ret;
+    struct MountPoint *mp = NULL;
+    lfs_file_t *lfsHandle = NULL;
+
+    if ((file == NULL) || (file->fData == NULL)) {
+        errno = EBADF;
+        return LOS_NOK;
+    }
+
+    lfsHandle = (lfs_file_t *)file->fData;
+    mp = file->fMp;
+    if ((mp == NULL) || (mp->mData == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    ret = (off_t)lfs_file_seek((lfs_t *)mp->mData, lfsHandle, offset, whence);
+    if (ret < 0) {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+
+    return ret;
+}
+
+int LfsClose(struct File *file)
+{
+    INT32 ret;
+    struct MountPoint *mp = NULL;
+    lfs_file_t *lfsHandle = NULL;
+
+    if ((file == NULL) || (file->fData == NULL)) {
+        errno = EBADF;
+        return LOS_NOK;
+    }
+
+    lfsHandle = (lfs_file_t *)file->fData;
+    mp = file->fMp;
+    if ((mp == NULL) || (mp->mData == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    pthread_mutex_lock(&g_FslocalMutex);
+    ret = lfs_file_close((lfs_t *)mp->mData, lfsHandle);
+    pthread_mutex_unlock(&g_FslocalMutex);
+
+    if (ret != 0) {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+
+    free(file->fData);
+    file->fData = NULL;
+    return ret;
+}
+
+int LfsRename(struct MountPoint *mp, const char *oldName, const char *newName)
+{
+    int ret;
+
+    if ((mp == NULL) || (oldName == NULL) || (newName == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    if (mp->mData == NULL) {
+        errno = ENOENT;
+        return LOS_NOK;
+    }
+
+    ret = lfs_rename((lfs_t *)mp->mData, oldName, newName);
+    if (ret != 0) {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+
+    return ret;
+}
+
+int LfsStat(struct MountPoint *mp, const char *path, struct stat *buf)
+{
+    int ret;
+    struct lfs_info info;
+
+    if ((mp == NULL) || (path == NULL) || (buf == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    if (mp->mData == NULL) {
+        errno = ENOENT;
+        return LOS_NOK;
+    }
+
+    ret = lfs_stat((lfs_t *)mp->mData, path, &info);
+    if (ret == 0) {
+        buf->st_size = info.size;
+        if (info.type == LFS_TYPE_REG) {
+            buf->st_mode = S_IFREG;
+        } else {
+            buf->st_mode = S_IFDIR;
+        }
+    } else {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+
+    return ret;
+}
+
+int LfsSync(struct File *file)
+{
+    int ret;
+    struct MountPoint *mp = NULL;
+
+    if ((file == NULL) || (file->fData == NULL)) {
+        errno = EBADF;
+        return LOS_NOK;
+    }
+
+    if ((file->fMp == NULL) || (file->fMp->mData == NULL)) {
+        errno = EFAULT;
+        return LOS_NOK;
+    }
+
+    mp = file->fMp;
+    ret = lfs_file_sync((lfs_t *)mp->mData, (lfs_file_t *)file->fData);
+    if (ret != 0) {
+        errno = LittlefsErrno(ret);
+        ret = LOS_NOK;
+    }
+    return ret;
+}
+
+static struct MountOps g_lfsMnt = {
+    .mount = LfsMount,
+    .umount = LfsUmount,
+    .umount2 = NULL,
+    .statfs = NULL,
+};
+
+static struct FileOps g_lfsFops = {
+    .open = LfsOpen,
+    .close = LfsClose,
+    .read = LfsRead,
+    .write = LfsWrite,
+    .lseek = LfsSeek,
+    .stat = LfsStat,
+    .truncate = NULL,
+    .unlink = LfsUnlink,
+    .rename = LfsRename,
+    .ioctl = NULL, /* not support */
+    .sync = LfsSync,
+    .rmdir = LfsRmdir,
+    .opendir = LfsOpendir,
+    .readdir = LfsReaddir,
+    .closedir = LfsClosedir,
+    .mkdir = LfsMkdir,
+};
+
+static struct FsManagement g_lfsMgt = {
+    .fdisk = NULL,
+    .format = NULL,
+};
+
+void LfsInit(void)
+{
+    (void)OsFsRegister("littlefs", &g_lfsMnt, &g_lfsFops, &g_lfsMgt);
+}

components/fs/littlefs/lfs_adapter.h

@@ -29,15 +29,15 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef _LFS_API_H_
-#define _LFS_API_H_
+#ifndef _LFS_ADAPTER_H_
+#define _LFS_ADAPTER_H_
 
 #include "fcntl.h"
 #include "sys/stat.h"
 
 #include "dirent.h"
 #include "errno.h"
-#include "fs_operations.h"
+#include "vfs_operations.h"
 #include "lfs.h"
 #include "lfs_conf.h"
 #include "lfs_util.h"
@@ -46,59 +46,5 @@
 
 #define INVALID_FD (-1)
 
-#ifndef VFS_ERROR
-#define VFS_ERROR (-1)
-#endif
-
-#ifndef VFS_OK
-#define VFS_OK  0
-#endif
-
-typedef struct {
-    uint8_t useFlag;
-    const char *pathName;
-    lfs_t *lfsHandle;
-    lfs_file_t file;
-} LittleFsHandleStruct;
-
-struct FileOpInfo {
-    uint8_t useFlag;
-    const struct FileOps *fsVops;
-    char *dirName;
-    lfs_t lfsInfo;
-};
-
-typedef struct {
-    uint8_t useFlag;
-    char *dirName;
-    lfs_t *lfsHandle;
-    lfs_dir_t dir;
-} FileDirInfo;
-
-LittleFsHandleStruct *GetFreeFd(int *fd);
-
-int LfsMount(const char *source, const char *target, const char *fileSystemType, unsigned long mountflags,
-    const void *data);
-
-int LfsUmount(const char *target);
-int LfsUnlink(const char *fileName);
-int LfsMkdir(const char *dirName, mode_t mode);
-int LfsRmdir(const char *dirName);
-DIR *LfsOpendir(const char *dirName);
-struct dirent *LfsReaddir(DIR *dir);
-int LfsClosedir(DIR *dir);
-int LfsOpen(const char *pathName, int openFlag, ...);
-int LfsRead(int fd, void *buf, unsigned int len);
-int LfsWrite(int fd, const void *buf, unsigned int len);
-off_t LfsSeek(int fd, off_t offset, int whence);
-int LfsClose(int fd);
-int LfsRename(const char *oldName, const char *newName);
-int LfsStat(const char *path, struct stat *buf);
-int LfsFsync(int fd);
-int LfsFstat(int fd, struct stat *buf);
-int SetDefaultMountPath(int pathNameIndex, const char* target);
-int LfsPread(int fd, void *buf, size_t nbyte, off_t offset);
-int LfsPwrite(int fd, const void *buf, size_t nbyte, off_t offset);
-
-#endif /* _LFS_API_H_ */
-
+void LfsInit(void);
+#endif /* _LFS_ADAPTER_H_ */

components/fs/littlefs/lfs_api.c

@@ -1,891 +0,0 @@
-/*
- * 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.
- */
-
-#define _GNU_SOURCE 1
-#include "lfs_api.h"
-#include "los_config.h"
-#include "securec.h"
-
-lfs_t g_lfs;
-FileDirInfo g_lfsDir[LFS_MAX_OPEN_DIRS] = {0};
-
-struct FileOpInfo g_fsOp[LOSCFG_LFS_MAX_MOUNT_SIZE] = {0};
-static LittleFsHandleStruct g_handle[LOSCFG_LFS_MAX_OPEN_FILES] = {0};
-struct dirent g_nameValue;
-static pthread_mutex_t g_FslocalMutex = PTHREAD_MUTEX_INITIALIZER;
-static const char *g_littlefsMntName[LOSCFG_LFS_MAX_MOUNT_SIZE] = {"/a"};
-
-LittleFsHandleStruct *LfsAllocFd(const char *fileName, int *fd)
-{
-    pthread_mutex_lock(&g_FslocalMutex);
-    for (int i = 0; i < LOSCFG_LFS_MAX_OPEN_FILES; i++) {
-        if (g_handle[i].useFlag == 0) {
-            *fd = i;
-            g_handle[i].useFlag = 1;
-            g_handle[i].pathName = strdup(fileName);
-            pthread_mutex_unlock(&g_FslocalMutex);
-            return &(g_handle[i]);
-        }
-    }
-    pthread_mutex_unlock(&g_FslocalMutex);
-    *fd = INVALID_FD;
-    return NULL;
-}
-
-static void LfsFreeFd(int fd)
-{
-    pthread_mutex_lock(&g_FslocalMutex);
-    g_handle[fd].useFlag = 0;
-    if (g_handle[fd].pathName != NULL) {
-        free((void *)g_handle[fd].pathName);
-        g_handle[fd].pathName = NULL;
-    }
-
-    if (g_handle[fd].lfsHandle != NULL) {
-        g_handle[fd].lfsHandle = NULL;
-    }
-    pthread_mutex_unlock(&g_FslocalMutex);
-}
-
-BOOL CheckFileIsOpen(const char *fileName)
-{
-    pthread_mutex_lock(&g_FslocalMutex);
-    for (int i = 0; i < LOSCFG_LFS_MAX_OPEN_FILES; i++) {
-        if (g_handle[i].useFlag == 1) {
-            if (strcmp(g_handle[i].pathName, fileName) == 0) {
-                pthread_mutex_unlock(&g_FslocalMutex);
-                return TRUE;
-            }
-        }
-    }
-    pthread_mutex_unlock(&g_FslocalMutex);
-    return FALSE;
-}
-
-static BOOL LfsFdIsValid(int fd)
-{
-    if (fd >= LOSCFG_LFS_MAX_OPEN_FILES || fd < 0) {
-        return FALSE;
-    }
-    if (g_handle[fd].lfsHandle == NULL) {
-        return FALSE;
-    }
-    return TRUE;
-}
-
-FileDirInfo *GetFreeDir(const char *dirName)
-{
-    pthread_mutex_lock(&g_FslocalMutex);
-    for (int i = 0; i < LFS_MAX_OPEN_DIRS; i++) {
-        if (g_lfsDir[i].useFlag == 0) {
-            g_lfsDir[i].useFlag = 1;
-            g_lfsDir[i].dirName = strdup(dirName);
-            pthread_mutex_unlock(&g_FslocalMutex);
-            return &(g_lfsDir[i]);
-        }
-    }
-    pthread_mutex_unlock(&g_FslocalMutex);
-    return NULL;
-}
-
-void FreeDirInfo(const char *dirName)
-{
-    pthread_mutex_lock(&g_FslocalMutex);
-    for (int i = 0; i < LFS_MAX_OPEN_DIRS; i++) {
-        if (g_lfsDir[i].useFlag == 1 && strcmp(g_lfsDir[i].dirName, dirName) == 0) {
-            g_lfsDir[i].useFlag = 0;
-            if (g_lfsDir[i].dirName) {
-                free(g_lfsDir[i].dirName);
-                g_lfsDir[i].dirName = NULL;
-            }
-            pthread_mutex_unlock(&g_FslocalMutex);
-        }
-    }
-    pthread_mutex_unlock(&g_FslocalMutex);
-}
-
-BOOL CheckDirIsOpen(const char *dirName)
-{
-    pthread_mutex_lock(&g_FslocalMutex);
-    for (int i = 0; i < LFS_MAX_OPEN_DIRS; i++) {
-        if (g_lfsDir[i].useFlag == 1) {
-            if (strcmp(g_lfsDir[i].dirName, dirName) == 0) {
-                pthread_mutex_unlock(&g_FslocalMutex);
-                return TRUE;
-            }
-        }
-    }
-    pthread_mutex_unlock(&g_FslocalMutex);
-    return FALSE;
-}
-
-int GetFirstLevelPathLen(const char *pathName)
-{
-    int len = 1;
-    for (int i = 1; i < strlen(pathName) + 1; i++) {
-        if (pathName[i] == '/') {
-            break;
-        }
-        len++;
-    }
-
-    return len;
-}
-
-BOOL CheckPathIsMounted(const char *pathName, struct FileOpInfo **fileOpInfo)
-{
-    char tmpName[LITTLEFS_MAX_LFN_LEN] = {0};
-    int len = GetFirstLevelPathLen(pathName);
-
-    pthread_mutex_lock(&g_FslocalMutex);
-    for (int i = 0; i < LOSCFG_LFS_MAX_MOUNT_SIZE; i++) {
-        if (g_fsOp[i].useFlag == 1) {
-            (void)strncpy_s(tmpName, LITTLEFS_MAX_LFN_LEN, pathName, len);
-            if (strcmp(tmpName, g_fsOp[i].dirName) == 0) {
-                *fileOpInfo = &(g_fsOp[i]);
-                pthread_mutex_unlock(&g_FslocalMutex);
-                return TRUE;
-            }
-        }
-    }
-    pthread_mutex_unlock(&g_FslocalMutex);
-    return FALSE;
-}
-
-struct FileOpInfo *AllocMountRes(const char* target, const struct FileOps *fileOps)
-{
-    pthread_mutex_lock(&g_FslocalMutex);
-    for (int i = 0; i < LOSCFG_LFS_MAX_MOUNT_SIZE; i++) {
-        if (g_fsOp[i].useFlag == 0 && strcmp(target, g_littlefsMntName[i]) == 0) {
-            g_fsOp[i].useFlag = 1;
-            g_fsOp[i].fsVops = fileOps;
-            g_fsOp[i].dirName = strdup(target);
-            pthread_mutex_unlock(&g_FslocalMutex);
-            return &(g_fsOp[i]);
-        }
-    }
-
-    pthread_mutex_unlock(&g_FslocalMutex);
-    return NULL;
-}
-
-int SetDefaultMountPath(int pathNameIndex, const char* target)
-{
-    if (pathNameIndex >= LOSCFG_LFS_MAX_MOUNT_SIZE) {
-        return VFS_ERROR;
-    }
-
-    pthread_mutex_lock(&g_FslocalMutex);
-    g_littlefsMntName[pathNameIndex] = strdup(target);
-    pthread_mutex_unlock(&g_FslocalMutex);
-    return VFS_OK;
-}
-
-struct FileOpInfo *GetMountRes(const char *target, int *mountIndex)
-{
-    pthread_mutex_lock(&g_FslocalMutex);
-    for (int i = 0; i < LOSCFG_LFS_MAX_MOUNT_SIZE; i++) {
-        if (g_fsOp[i].useFlag == 1) {
-            if (g_fsOp[i].dirName && strcmp(target, g_fsOp[i].dirName) == 0) {
-                *mountIndex = i;
-                pthread_mutex_unlock(&g_FslocalMutex);
-                return &(g_fsOp[i]);
-            }
-        }
-    }
-
-    pthread_mutex_unlock(&g_FslocalMutex);
-    return NULL;
-}
-
-int FreeMountResByIndex(int mountIndex)
-{
-    if (mountIndex < 0 || mountIndex >= LOSCFG_LFS_MAX_MOUNT_SIZE) {
-        return VFS_ERROR;
-    }
-
-    pthread_mutex_lock(&g_FslocalMutex);
-    if (g_fsOp[mountIndex].useFlag == 1 && g_fsOp[mountIndex].dirName != NULL) {
-        g_fsOp[mountIndex].useFlag = 0;
-        free(g_fsOp[mountIndex].dirName);
-        g_fsOp[mountIndex].dirName = NULL;
-    }
-    pthread_mutex_unlock(&g_FslocalMutex);
-
-    return VFS_OK;
-}
-
-int FreeMountRes(const char *target)
-{
-    pthread_mutex_lock(&g_FslocalMutex);
-    for (int i = 0; i < LOSCFG_LFS_MAX_MOUNT_SIZE; i++) {
-        if (g_fsOp[i].useFlag == 1) {
-            if (g_fsOp[i].dirName && strcmp(target, g_fsOp[i].dirName) == 0) {
-                g_fsOp[i].useFlag = 0;
-                free(g_fsOp[i].dirName);
-                g_fsOp[i].dirName = NULL;
-                pthread_mutex_unlock(&g_FslocalMutex);
-                return VFS_OK;
-            }
-        }
-    }
-
-    pthread_mutex_unlock(&g_FslocalMutex);
-    return VFS_ERROR;
-}
-
-static int ConvertFlagToLfsOpenFlag (int oflags)
-{
-    int lfsOpenFlag = 0;
-
-    if (oflags & O_CREAT) {
-        lfsOpenFlag |= LFS_O_CREAT;
-    }
-
-    if (oflags & O_EXCL) {
-        lfsOpenFlag |= LFS_O_EXCL;
-    }
-
-    if (oflags & O_TRUNC) {
-        lfsOpenFlag |= LFS_O_TRUNC;
-    }
-
-    if (oflags & O_APPEND) {
-        lfsOpenFlag |= LFS_O_APPEND;
-    }
-
-    if (oflags & O_RDWR) {
-        lfsOpenFlag |= LFS_O_RDWR;
-    }
-
-    if (oflags & O_WRONLY) {
-        lfsOpenFlag |= LFS_O_WRONLY;
-    }
-
-    if (oflags == O_RDONLY) {
-        lfsOpenFlag |= LFS_O_RDONLY;
-    }
-
-    return lfsOpenFlag;
-}
-
-static int LittlefsErrno(int result)
-{
-    return (result < 0) ? -result : result;
-}
-
-const struct MountOps g_lfsMnt = {
-    .Mount = LfsMount,
-    .Umount = LfsUmount,
-};
-
-const struct FileOps g_lfsFops = {
-    .Mkdir = LfsMkdir,
-    .Unlink = LfsUnlink,
-    .Rmdir = LfsRmdir,
-    .Opendir = LfsOpendir,
-    .Readdir = LfsReaddir,
-    .Closedir = LfsClosedir,
-    .Open = LfsOpen,
-    .Close = LfsClose,
-    .Write = LfsWrite,
-    .Read = LfsRead,
-    .Seek = LfsSeek,
-    .Rename = LfsRename,
-    .Getattr = LfsStat,
-    .Fsync = LfsFsync,
-    .Fstat = LfsFstat,
-    .Pread = LfsPread,
-    .Pwrite = LfsPwrite,
-};
-
-int LfsMount(const char *source, const char *target, const char *fileSystemType, unsigned long mountflags,
-    const void *data)
-{
-    int ret;
-    struct FileOpInfo *fileOpInfo = NULL;
-
-    if (target == NULL || fileSystemType == NULL || data == NULL) {
-        errno = EFAULT;
-        ret = VFS_ERROR;
-        goto errout;
-    }
-
-    if (strcmp(fileSystemType, "littlefs") != 0) {
-        errno = ENODEV;
-        ret = VFS_ERROR;
-        goto errout;
-    }
-
-    if (CheckPathIsMounted(target, &fileOpInfo)) {
-        errno = EBUSY;
-        ret = VFS_ERROR;
-        goto errout;
-    }
-
-    // select free mount resource
-    fileOpInfo = AllocMountRes(target, &g_lfsFops);
-    if (fileOpInfo == NULL) {
-        errno = ENODEV;
-        ret = VFS_ERROR;
-        goto errout;
-    }
-
-    ret = lfs_mount(&(fileOpInfo->lfsInfo), (struct lfs_config*)data);
-    if (ret != 0) {
-        ret = lfs_format(&(fileOpInfo->lfsInfo), (struct lfs_config*)data);
-        if (ret == 0) {
-            ret = lfs_mount(&(fileOpInfo->lfsInfo), (struct lfs_config*)data);
-        }
-    }
-
-    if (ret != 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-errout:
-    return ret;
-}
-
-int LfsUmount(const char *target)
-{
-    int ret;
-    int mountIndex = -1;
-    struct FileOpInfo *fileOpInfo = NULL;
-
-    if (target == NULL) {
-        errno = EFAULT;
-        return VFS_ERROR;
-    }
-
-    fileOpInfo = GetMountRes(target, &mountIndex);
-    if (fileOpInfo == NULL) {
-        errno = ENOENT;
-        return VFS_ERROR;
-    }
-
-    ret = lfs_unmount(&(fileOpInfo->lfsInfo));
-    if (ret != 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-    (void)FreeMountResByIndex(mountIndex);
-    return ret;
-}
-
-int LfsUnlink(const char *fileName)
-{
-    int ret;
-    struct FileOpInfo *fileOpInfo = NULL;
-
-    if (fileName == NULL) {
-        errno = EFAULT;
-        return VFS_ERROR;
-    }
-
-    if (CheckPathIsMounted(fileName, &fileOpInfo) == FALSE || fileOpInfo == NULL) {
-        errno = ENOENT;
-        return VFS_ERROR;
-    }
-
-    ret = lfs_remove(&(fileOpInfo->lfsInfo), fileName);
-    if (ret != 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-    return ret;
-}
-
-int LfsMkdir(const char *dirName, mode_t mode)
-{
-    int ret;
-    struct FileOpInfo *fileOpInfo = NULL;
-
-    if (dirName == NULL) {
-        errno = EFAULT;
-        return VFS_ERROR;
-    }
-
-    if (CheckPathIsMounted(dirName, &fileOpInfo) == FALSE || fileOpInfo == NULL) {
-        errno = ENOENT;
-        return VFS_ERROR;
-    }
-
-    ret = lfs_mkdir(&(fileOpInfo->lfsInfo), dirName);
-    if (ret != 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-    return ret;
-}
-
-int LfsRmdir(const char *dirName)
-{
-    int ret;
-
-    struct FileOpInfo *fileOpInfo = NULL;
-
-    if (dirName == NULL) {
-        errno = EFAULT;
-        return VFS_ERROR;
-    }
-
-    if (CheckPathIsMounted(dirName, &fileOpInfo) == FALSE || fileOpInfo == NULL) {
-        errno = ENOENT;
-        return VFS_ERROR;
-    }
-
-    ret = lfs_remove(&(fileOpInfo->lfsInfo), dirName);
-    if (ret != 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-    return ret;
-}
-
-DIR *LfsOpendir(const char *dirName)
-{
-    int ret;
-    struct FileOpInfo *fileOpInfo = NULL;
-
-    if (dirName == NULL) {
-        errno = EFAULT;
-        goto errout;
-    }
-
-    if (CheckPathIsMounted(dirName, &fileOpInfo) == FALSE || fileOpInfo == NULL) {
-        errno = ENOENT;
-        goto errout;
-    }
-
-    if (CheckDirIsOpen(dirName)) {
-        errno = EBUSY;
-        goto errout;
-    }
-
-    FileDirInfo *dirInfo = GetFreeDir(dirName);
-    if (dirInfo == NULL) {
-        errno = ENFILE;
-        goto errout;
-    }
-
-    ret = lfs_dir_open(&(fileOpInfo->lfsInfo), (lfs_dir_t *)(&(dirInfo->dir)), dirName);
-
-    if (ret != 0) {
-        FreeDirInfo(dirName);
-        errno = LittlefsErrno(ret);
-        goto errout;
-    }
-
-    dirInfo->lfsHandle = &(fileOpInfo->lfsInfo);
-
-    return (DIR *)dirInfo;
-
-errout:
-    return NULL;
-}
-
-struct dirent *LfsReaddir(DIR *dir)
-{
-    int ret;
-    struct lfs_info lfsInfo;
-
-    FileDirInfo *dirInfo = (FileDirInfo *)dir;
-
-    if (dirInfo == NULL || dirInfo->lfsHandle == NULL) {
-        errno = EBADF;
-        return NULL;
-    }
-
-    ret = lfs_dir_read(dirInfo->lfsHandle, (lfs_dir_t *)(&(dirInfo->dir)), &lfsInfo);
-    if (ret == TRUE) {
-        pthread_mutex_lock(&g_FslocalMutex);
-        (void)strncpy_s(g_nameValue.d_name, sizeof(g_nameValue.d_name), lfsInfo.name, strlen(lfsInfo.name) + 1);
-        if (lfsInfo.type == LFS_TYPE_DIR) {
-            g_nameValue.d_type = DT_DIR;
-        } else if (lfsInfo.type == LFS_TYPE_REG) {
-            g_nameValue.d_type = DT_REG;
-        }
-
-        g_nameValue.d_reclen = lfsInfo.size;
-        pthread_mutex_unlock(&g_FslocalMutex);
-
-        return &g_nameValue;
-    }
-
-    if (ret != 0) {
-        errno = LittlefsErrno(ret);
-    }
-
-    return NULL;
-}
-
-int LfsClosedir(DIR *dir)
-{
-    int ret;
-    FileDirInfo *dirInfo = (FileDirInfo *)dir;
-
-    if (dirInfo == NULL || dirInfo->lfsHandle == NULL) {
-        errno = EBADF;
-        return VFS_ERROR;
-    }
-
-    ret = lfs_dir_close(dirInfo->lfsHandle, (lfs_dir_t *)(&(dirInfo->dir)));
-
-    FreeDirInfo(dirInfo->dirName);
-
-    if (ret != 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-    return ret;
-}
-
-int LfsOpen(const char *pathName, int openFlag, ...)
-{
-    int fd = INVALID_FD;
-    int err = INVALID_FD;
-
-    struct FileOpInfo *fileOpInfo = NULL;
-
-    if (pathName == NULL) {
-        errno = EFAULT;
-        goto errout;
-    }
-
-    if (CheckPathIsMounted(pathName, &fileOpInfo) == FALSE || fileOpInfo == NULL) {
-        errno = ENOENT;
-        goto errout;
-    }
-    // if file is already open, return invalid fd
-    if (CheckFileIsOpen(pathName)) {
-        errno = EBUSY;
-        goto errout;
-    }
-
-    LittleFsHandleStruct *fsHandle = LfsAllocFd(pathName, &fd);
-    if (fd == INVALID_FD) {
-        errno = ENFILE;
-        goto errout;
-    }
-
-    int lfsOpenFlag = ConvertFlagToLfsOpenFlag(openFlag);
-    err = lfs_file_open(&(fileOpInfo->lfsInfo), &(fsHandle->file), pathName, lfsOpenFlag);
-    if (err != 0) {
-        LfsFreeFd(fd);
-        errno = LittlefsErrno(err);
-        goto errout;
-    }
-
-    g_handle[fd].lfsHandle = &(fileOpInfo->lfsInfo);
-    return fd;
-
-errout:
-    return INVALID_FD;
-}
-
-int LfsRead(int fd, void *buf, unsigned int len)
-{
-    int ret;
-
-    if (buf == NULL) {
-        errno = EFAULT;
-        return VFS_ERROR;
-    }
-
-    if (LfsFdIsValid(fd) == FALSE) {
-        errno = EBADF;
-        return VFS_ERROR;
-    }
-
-    ret = lfs_file_read(g_handle[fd].lfsHandle, &(g_handle[fd].file), buf, len);
-    if (ret < 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-    return ret;
-}
-
-int LfsWrite(int fd, const void *buf, unsigned int len)
-{
-    int ret;
-
-    if (buf == NULL) {
-        errno = EFAULT;
-        return VFS_ERROR;
-    }
-
-    if (LfsFdIsValid(fd) == FALSE) {
-        errno = EBADF;
-        return VFS_ERROR;
-    }
-
-    ret = lfs_file_write(g_handle[fd].lfsHandle, &(g_handle[fd].file), buf, len);
-    if (ret < 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-    return ret;
-}
-
-off_t LfsSeek(int fd, off_t offset, int whence)
-{
-    off_t ret;
-
-    if (LfsFdIsValid(fd) == FALSE) {
-        errno = EBADF;
-        return VFS_ERROR;
-    }
-
-    ret = (off_t)lfs_file_seek(g_handle[fd].lfsHandle, &(g_handle[fd].file), offset, whence);
-    if (ret < 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-    return ret;
-}
-
-int LfsClose(int fd)
-{
-    int ret;
-
-    if (LfsFdIsValid(fd) == FALSE) {
-        errno = EBADF;
-        return VFS_ERROR;
-    }
-
-    pthread_mutex_lock(&g_FslocalMutex);
-    ret = lfs_file_close(g_handle[fd].lfsHandle, &(g_handle[fd].file));
-    pthread_mutex_unlock(&g_FslocalMutex);
-
-    LfsFreeFd(fd);
-
-    if (ret != 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-    return ret;
-}
-
-int LfsRename(const char *oldName, const char *newName)
-{
-    int ret;
-    struct FileOpInfo *fileOpInfo = NULL;
-
-    if (oldName == NULL || newName == NULL) {
-        errno = EFAULT;
-        return VFS_ERROR;
-    }
-
-    if (CheckPathIsMounted(oldName, &fileOpInfo) == FALSE || fileOpInfo == NULL) {
-        errno = ENOENT;
-        return VFS_ERROR;
-    }
-
-    ret = lfs_rename(&(fileOpInfo->lfsInfo), oldName, newName);
-    if (ret != 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-    return ret;
-}
-
-int LfsStat(const char *path, struct stat *buf)
-{
-    int ret;
-    struct lfs_info info;
-    struct FileOpInfo *fileOpInfo = NULL;
-
-    if (path == NULL || buf == NULL) {
-        errno = EFAULT;
-        return VFS_ERROR;
-    }
-
-    if (CheckPathIsMounted(path, &fileOpInfo) == FALSE || fileOpInfo == NULL) {
-        errno = ENOENT;
-        return VFS_ERROR;
-    }
-
-    ret = lfs_stat(&(fileOpInfo->lfsInfo), path, &info);
-    if (ret == 0) {
-        buf->st_size = info.size;
-        if (info.type == LFS_TYPE_REG) {
-            buf->st_mode = S_IFREG;
-        } else {
-            buf->st_mode = S_IFDIR;
-        }
-    } else {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-    return ret;
-}
-
-int LfsFsync(int fd)
-{
-    int ret;
-
-    if (LfsFdIsValid(fd) == FALSE) {
-        errno = EBADF;
-        return VFS_ERROR;
-    }
-
-    ret = lfs_file_sync(g_handle[fd].lfsHandle, &(g_handle[fd].file));
-    if (ret != 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-    return ret;
-}
-
-int LfsFstat(int fd, struct stat *buf)
-{
-    int ret;
-    struct lfs_info info;
-
-    if (buf == NULL) {
-        errno = EFAULT;
-        return FS_FAILURE;
-    }
-
-    if (LfsFdIsValid(fd) == FALSE) {
-        errno = EBADF;
-        return VFS_ERROR;
-    }
-
-    ret = lfs_stat(g_handle[fd].lfsHandle, g_handle[fd].pathName, &info);
-    if (ret == 0) {
-        buf->st_size = info.size;
-        if (info.type == LFS_TYPE_REG) {
-            buf->st_mode = S_IFREG;
-        } else {
-            buf->st_mode = S_IFDIR;
-        }
-    } else {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-    return ret;
-}
-
-int LfsPread(int fd, void *buf, size_t nbyte, off_t offset)
-{
-    int ret;
-    off_t savepos, pos;
-
-    if (buf == NULL) {
-        errno = EFAULT;
-        return VFS_ERROR;
-    }
-
-    if (LfsFdIsValid(fd) == FALSE) {
-        errno = EBADF;
-        return VFS_ERROR;
-    }
-
-    savepos = (off_t)lfs_file_seek(g_handle[fd].lfsHandle, &(g_handle[fd].file), 0, SEEK_CUR);
-    if (savepos == (off_t)-1) {
-        errno = LittlefsErrno(savepos);
-        return VFS_ERROR;
-    }
-
-    pos = (off_t)lfs_file_seek(g_handle[fd].lfsHandle, &(g_handle[fd].file), offset, SEEK_SET);
-    if (pos == (off_t)-1) {
-        errno = LittlefsErrno(pos);
-        return VFS_ERROR;
-    }
-
-    ret = lfs_file_read(g_handle[fd].lfsHandle, &(g_handle[fd].file), buf, nbyte);
-    if (ret < 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-    pos = (off_t)lfs_file_seek(g_handle[fd].lfsHandle, &(g_handle[fd].file), savepos, SEEK_SET);
-    if ((pos == (off_t)-1) && (ret >= 0)) {
-        errno = LittlefsErrno(pos);
-        return VFS_ERROR;
-    }
-
-    return ret;
-}
-
-int LfsPwrite(int fd, const void *buf, size_t nbyte, off_t offset)
-{
-    int ret;
-    off_t savepos, pos;
-
-    if (buf == NULL) {
-        errno = EFAULT;
-        return VFS_ERROR;
-    }
-
-    if (LfsFdIsValid(fd) == FALSE) {
-        errno = EBADF;
-        return VFS_ERROR;
-    }
-
-    savepos = (off_t)lfs_file_seek(g_handle[fd].lfsHandle, &(g_handle[fd].file), 0, SEEK_CUR);
-    if (savepos == (off_t)-1) {
-        errno = LittlefsErrno(savepos);
-        return VFS_ERROR;
-    }
-
-    pos = (off_t)lfs_file_seek(g_handle[fd].lfsHandle, &(g_handle[fd].file), offset, SEEK_SET);
-    if (pos == (off_t)-1) {
-        errno = LittlefsErrno(pos);
-        return VFS_ERROR;
-    }
-
-    ret = lfs_file_write(g_handle[fd].lfsHandle, &(g_handle[fd].file), buf, nbyte);
-    if (ret < 0) {
-        errno = LittlefsErrno(ret);
-        ret = VFS_ERROR;
-    }
-
-    pos = (off_t)lfs_file_seek(g_handle[fd].lfsHandle, &(g_handle[fd].file), savepos, SEEK_SET);
-    if ((pos == (off_t)-1) && (ret >= 0)) {
-        errno = LittlefsErrno(pos);
-        return VFS_ERROR;
-    }
-
-    return ret;
-}

components/fs/vfs/BUILD.gn

@@ -1,5 +1,4 @@
-# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
-# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+# Copyright (c) 2022-2022 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:
@@ -32,7 +31,26 @@ import("//kernel/liteos_m/liteos.gni")
 module_switch = defined(LOSCFG_FS_VFS)
 module_name = get_path_info(rebase_path("."), "name")
 kernel_module(module_name) {
-  sources = [ "los_fs.c" ]
+  sources = [
+    "vfs_files.c",
+    "vfs_fs.c",
+    "vfs_init.c",
+    "vfs_maps.c",
+    "vfs_mount.c",
+    "vfs_partition.c",
+  ]
+
+  include_dirs = [
+    "//kernel/liteos_m/kernel/arch/include",
+    "//kernel/liteos_m/kernel/include",
+    "//kernel/liteos_m/utils",
+    "../",
+    ".",
+  ]
+
+  deps = [ "//kernel/liteos_m/kal" ]
+  configs += [ "$LITEOSTOPDIR:warn_config" ]
+  cflags = [ "-Wno-parentheses" ]
 }
 
 config("public") {

components/fs/vfs/Kconfig

@@ -1,5 +1,5 @@
 # Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
-# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+# Copyright (c) 2020-2022 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:
@@ -30,5 +30,6 @@
 config FS_VFS
     bool "Enable FS VFS"
     default y
+
     help
       Answer Y to enable LiteOS support VFS.

components/fs/vfs/fs_operations.h

@@ -1,82 +0,0 @@
-/*
- * 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 _FS_OPERATIONS_H_
-#define _FS_OPERATIONS_H_
-
-#include "fcntl.h"
-#include "dirent.h"
-#include "unistd.h"
-#include "sys/mount.h"
-#include "sys/stat.h"
-#include "sys/statfs.h"
-
-#define FS_SUCCESS            0
-#define FS_FAILURE            (-1)
-#define MAX_FILESYSTEM_LEN 2
-
-struct MountOps {
-    int (*Mount)(const char *source, const char *target, const char *filesystemtype, unsigned long mountflags,
-        const void *data);
-    int (*Umount)(const char* target);
-    int (*Umount2)(const char* target, int flag);
-    int (*Statfs)(const char *path, struct statfs *buf);
-};
-
-struct FsMap {
-    const char *fileSystemtype;
-    const struct MountOps *fsMops;
-    const struct FileOps *fsFops;
-};
-
-struct FileOps {
-    int (*Open)(const char *path, int openFlag, ...);
-    int (*Close)(int fd);
-    int (*Unlink)(const char *fileName);
-    int (*Rmdir)(const char *dirName);
-    int (*Mkdir)(const char *dirName, mode_t mode);
-    struct dirent *(*Readdir)(DIR *dir);
-    DIR *(*Opendir)(const char *dirName);
-    int (*Closedir)(DIR *dir);
-    int (*Read)(int fd, void *buf, size_t len);
-    int (*Write)(int fd, const void *buf, size_t len);
-    off_t (*Seek)(int fd, off_t offset, int whence);
-    int (*Getattr)(const char *path, struct stat *buf);
-    int (*Rename)(const char *oldName, const char *newName);
-    int (*Fsync)(int fd);
-    int (*Fstat)(int fd, struct stat *buf);
-    int (*Stat)(const char *path, struct stat *buf);
-    int (*Ftruncate)(int fd, off_t length);
-    int (*Pread)(int fd, void *buf, size_t nbyte, off_t offset);
-    int (*Pwrite)(int fd, const void *buf, size_t nbyte, off_t offset);
-};
-
-#endif /* _FS_OPERATIONS_H_ */

components/fs/vfs/los_fs.c

@@ -1,649 +0,0 @@
-/*
- * 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 "los_fs.h"
-#include "los_config.h"
-#include "fs_operations.h"
-#if (LOSCFG_SUPPORT_FATFS == 1)
-#include "fatfs.h"
-#endif
-#include "dirent.h"
-#include "errno.h"
-#include "fcntl.h"
-#include "securec.h"
-#include "stdio.h"
-#include "stdlib.h"
-#include "string.h"
-#include "sys/mount.h"
-#include "sys/statfs.h"
-#include "sys/stat.h"
-#include "unistd.h"
-
-#ifdef LOSCFG_NET_LWIP_SACK
-#define _BSD_SOURCE
-#include "lwip/sockets.h"
-#endif
-
-#include "vfs_config.h"
-
-#ifdef LOSCFG_RANDOM_DEV
-#include "hks_client.h"
-#define RANDOM_DEV_FD  CONFIG_NFILE_DESCRIPTORS + CONFIG_NSOCKET_DESCRIPTORS
-#define RANDOM_DEV_PATH  "/dev/random"
-#endif
-
-#if (LOSCFG_POSIX_PIPE_API == 1)
-#include "pipe_impl.h"
-#ifdef LOSCFG_RANDOM_DEV
-#define PIPE_DEV_FD (RANDOM_DEV_FD + 1)
-#else
-#define PIPE_DEV_FD (CONFIG_NFILE_DESCRIPTORS + CONFIG_NSOCKET_DESCRIPTORS)
-#endif
-
-int PollQueryFd(int fd, struct PollTable *table)
-{
-    if (fd >= PIPE_DEV_FD) {
-        return PipePoll(fd, table);
-    }
-
-    return -ENODEV;
-}
-#endif
-
-#define FREE_AND_SET_NULL(ptr) do { \
-    free(ptr);                      \
-    ptr = NULL;                     \
-} while (0)
-
-#ifdef LOSCFG_RANDOM_DEV
-/**
- * @brief Get canonical form of a given path based on cwd(Current working directory).
- *
- * @param cwd Indicates the current working directory.
- * @param path Indicates the path to be canonicalization.
- * @param buf Indicates the pointer to the buffer where the result will be return.
- * @param bufSize Indicates the size of the buffer.
- * @return Returns the length of the canonical path.
- *
- * @attention if path is an absolute path, cwd is ignored. if cwd if not specified, it is assumed to be root('/').
- *            if the buffer is not big enough the result will be truncated, but the return value will always be the
- *            length of the canonical path.
- */
-static size_t GetCanonicalPath(const char *cwd, const char *path, char *buf, size_t bufSize)
-{
-    size_t offset;
-    if (!path) {
-        path = "";
-    }
-
-    if (!cwd || path[0] == '/') {
-        cwd = "";
-    }
-
-    offset = strlen("///") + 1; // three '/' and one '\0'
-    size_t tmpLen = strlen(cwd) + strlen(path) + offset;
-    char *tmpBuf = (char *)malloc(tmpLen);
-    if (tmpBuf == NULL) {
-        return FS_SUCCESS;
-    }
-
-    if (-1 == sprintf_s(tmpBuf, tmpLen, "/%s/%s/", cwd, path)) {
-        free(tmpBuf);
-        return FS_SUCCESS;
-    }
-
-    char *p;
-    /* replace /./ to / */
-    offset = strlen("/./") - 1;
-    while ((p = strstr(tmpBuf, "/./")) != NULL) {
-        if (EOK != memmove_s(p, tmpLen - (p - tmpBuf), p + offset, tmpLen - (p - tmpBuf) - offset)) {
-            free(tmpBuf);
-            return FS_SUCCESS;
-        }
-    }
-
-    /* replace // to / */
-    while ((p = strstr(tmpBuf, "//")) != NULL) {
-        if (EOK != memmove_s(p, tmpLen - (p - tmpBuf), p + 1, tmpLen - (p - tmpBuf) - 1)) {
-            free(tmpBuf);
-            return FS_SUCCESS;
-        }
-    }
-
-    /* handle /../ (e.g., replace /aa/bb/../ to /aa/) */
-    offset = strlen("/../") - 1;
-    while ((p = strstr(tmpBuf, "/../")) != NULL) {
-        char *start = p;
-        while (start > tmpBuf && *(start - 1) != '/') {
-            --start;
-        }
-        if (EOK != memmove_s(start, tmpLen - (start - tmpBuf), p + offset, tmpLen - (p - tmpBuf) - offset)) {
-            free(tmpBuf);
-            return FS_SUCCESS;
-        }
-    }
-
-    size_t totalLen = strlen(tmpBuf);
-    /* strip the last / */
-    if (totalLen > 1 && tmpBuf[totalLen - 1] == '/') {
-        tmpBuf[--totalLen] = 0;
-    }
-
-    if (!buf || bufSize == 0) {
-        free(tmpBuf);
-        return totalLen;
-    }
-
-    if (EOK != memcpy_s(buf, bufSize, tmpBuf, (((totalLen + 1) > bufSize) ? bufSize : (totalLen + 1)))) {
-        free(tmpBuf);
-        return FS_SUCCESS;
-    }
-
-    buf[bufSize - 1] = 0;
-    free(tmpBuf);
-    return totalLen;
-}
-#endif
-
-static struct FsMap g_fsmap[MAX_FILESYSTEM_LEN] = {0};
-static struct FsMap *g_fs = NULL;
-
-static void InitMountInfo(void)
-{
-#if (LOSCFG_SUPPORT_FATFS == 1)
-    extern struct MountOps g_fatfsMnt;
-    extern struct FileOps g_fatfsFops;
-    g_fsmap[0].fileSystemtype = strdup("fat");
-    g_fsmap[0].fsMops = &g_fatfsMnt;
-    g_fsmap[0].fsFops = &g_fatfsFops;
-#endif
-#if (LOSCFG_SUPPORT_LITTLEFS == 1)
-    extern struct MountOps g_lfsMnt;
-    extern struct FileOps g_lfsFops;
-    g_fsmap[1].fileSystemtype = strdup("littlefs");
-    g_fsmap[1].fsMops = &g_lfsMnt;
-    g_fsmap[1].fsFops = &g_lfsFops;
-#endif
-}
-
-static struct FsMap *MountFindfs(const char *fileSystemtype)
-{
-    struct FsMap *m = NULL;
-
-    for (int i = 0; i < MAX_FILESYSTEM_LEN; i++) {
-        m = &(g_fsmap[i]);
-        if (m->fileSystemtype && strcmp(fileSystemtype, m->fileSystemtype) == 0) {
-            return m;
-        }
-    }
-
-    return NULL;
-}
-
-int LOS_FsMount(const char *source, const char *target,
-                const char *filesystemtype, unsigned long mountflags,
-                const void *data)
-{
-    static int initFlag = 0;
-
-    if (initFlag == 0) {
-        InitMountInfo();
-        initFlag = 1;
-    }
-
-    g_fs = MountFindfs(filesystemtype);
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-
-    if (g_fs->fsMops == NULL || g_fs->fsMops->Mount == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-
-    return g_fs->fsMops->Mount(source, target, filesystemtype, mountflags, data);
-}
-
-int LOS_FsUmount(const char *target)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsMops == NULL || g_fs->fsMops->Umount == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsMops->Umount(target);
-}
-
-int LOS_FsUmount2(const char *target, int flag)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsMops == NULL || g_fs->fsMops->Umount2 == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsMops->Umount2(target, flag);
-}
-
-int LOS_Open(const char *path, int oflag, ...)
-{
-#ifdef LOSCFG_RANDOM_DEV
-    unsigned flags = O_RDONLY | O_WRONLY | O_RDWR | O_APPEND | O_CREAT | O_LARGEFILE | O_TRUNC | O_EXCL | O_DIRECTORY;
-    if ((unsigned)oflag & ~flags) {
-        errno = EINVAL;
-        return FS_FAILURE;
-    }
-
-    size_t pathLen = strlen(path) + 1;
-    char *canonicalPath = (char *)malloc(pathLen);
-    if (!canonicalPath) {
-        errno = ENOMEM;
-        return FS_FAILURE;
-    }
-    if (GetCanonicalPath(NULL, path, canonicalPath, pathLen) == 0) {
-        FREE_AND_SET_NULL(canonicalPath);
-        errno = ENOMEM;
-        return FS_FAILURE;
-    }
-
-    if (strcmp(canonicalPath, RANDOM_DEV_PATH) == 0) {
-        FREE_AND_SET_NULL(canonicalPath);
-        if ((O_ACCMODE & (unsigned)oflag) != O_RDONLY) {
-            errno = EPERM;
-            return FS_FAILURE;
-        }
-        if ((unsigned)oflag & O_DIRECTORY) {
-            errno = ENOTDIR;
-            return FS_FAILURE;
-        }
-        return RANDOM_DEV_FD;
-    }
-    if (strcmp(canonicalPath, "/") == 0 || strcmp(canonicalPath, "/dev") == 0) {
-        FREE_AND_SET_NULL(canonicalPath);
-        if ((unsigned)oflag & O_DIRECTORY) {
-            errno = EPERM;
-            return FS_FAILURE;
-        }
-        errno = EISDIR;
-        return FS_FAILURE;
-    }
-    FREE_AND_SET_NULL(canonicalPath);
-#endif
-
-#if (LOSCFG_POSIX_PIPE_API == 1)
-    if ((path != NULL) && !strncmp(path, PIPE_DEV_PATH, strlen(PIPE_DEV_PATH))) {
-        return PipeOpen(path, oflag, PIPE_DEV_FD);
-    }
-#endif
-
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Open == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Open(path, oflag);
-}
-
-int LOS_Close(int fd)
-{
-#ifdef LOSCFG_RANDOM_DEV
-    if (fd == RANDOM_DEV_FD) {
-        return FS_SUCCESS;
-    }
-#endif
-#ifdef LOSCFG_NET_LWIP_SACK
-    if (fd >= CONFIG_NFILE_DESCRIPTORS && fd < (CONFIG_NFILE_DESCRIPTORS + CONFIG_NSOCKET_DESCRIPTORS)) {
-        return closesocket(fd);
-    }
-#endif
-
-#if (LOSCFG_POSIX_PIPE_API == 1)
-    if (fd >= PIPE_DEV_FD) {
-        return PipeClose(fd);
-    }
-#endif
-
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Close == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Close(fd);
-}
-
-ssize_t LOS_Read(int fd, void *buf, size_t nbyte)
-{
-#ifdef LOSCFG_RANDOM_DEV
-    if (fd == RANDOM_DEV_FD) {
-        if (nbyte == 0) {
-            return FS_SUCCESS;
-        }
-        if (buf == NULL) {
-            errno = EINVAL;
-            return FS_FAILURE;
-        }
-        if (nbyte > 1024) { /* 1024, max random_size */
-            nbyte = 1024; /* hks_generate_random: random_size must <= 1024 */
-        }
-        struct hks_blob key = {HKS_BLOB_TYPE_RAW, (uint8_t *)buf, nbyte};
-        if (hks_generate_random(&key) != 0) {
-            errno = EIO;
-            return FS_FAILURE;
-        }
-        return (ssize_t)nbyte;
-    }
-#endif
-#ifdef LOSCFG_NET_LWIP_SACK
-    if (fd >= CONFIG_NFILE_DESCRIPTORS && fd < (CONFIG_NFILE_DESCRIPTORS + CONFIG_NSOCKET_DESCRIPTORS)) {
-        return recv(fd, buf, nbyte, 0);
-    }
-#endif
-
-#if (LOSCFG_POSIX_PIPE_API == 1)
-    if (fd >= PIPE_DEV_FD) {
-        return PipeRead(fd, buf, nbyte);
-    }
-#endif
-
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Read == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Read(fd, buf, nbyte);
-}
-
-ssize_t LOS_Write(int fd, const void *buf, size_t nbyte)
-{
-#ifdef LOSCFG_RANDOM_DEV
-    if (fd == RANDOM_DEV_FD) {
-        errno = EBADF; /* "/dev/random" is readonly */
-        return FS_FAILURE;
-    }
-#endif
-#ifdef LOSCFG_NET_LWIP_SACK
-    if (fd >= CONFIG_NFILE_DESCRIPTORS && fd < (CONFIG_NFILE_DESCRIPTORS + CONFIG_NSOCKET_DESCRIPTORS)) {
-        return send(fd, buf, nbyte, 0);
-    }
-#endif
-
-#if (LOSCFG_POSIX_PIPE_API == 1)
-    if (fd >= PIPE_DEV_FD) {
-        return PipeWrite(fd, buf, nbyte);
-    }
-#endif
-
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Write == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Write(fd, buf, nbyte);
-}
-
-off_t LOS_Lseek(int fd, off_t offset, int whence)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Seek == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Seek(fd, offset, whence);
-}
-
-int LOS_Unlink(const char *path)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Unlink == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Unlink(path);
-}
-
-int LOS_Fstat(int fd, struct stat *buf)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Fstat == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Fstat(fd, buf);
-}
-
-int LOS_Stat(const char *path, struct stat *buf)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Getattr == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Getattr(path, buf);
-}
-
-int LOS_Fsync(int fd)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Fsync == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Fsync(fd);
-}
-
-int LOS_Mkdir(const char *path, mode_t mode)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Mkdir == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Mkdir(path, mode);
-}
-
-DIR *LOS_Opendir(const char *dirName)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return NULL;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Opendir == NULL) {
-        errno = ENOSYS;
-        return NULL;
-    }
-    return g_fs->fsFops->Opendir(dirName);
-}
-
-struct dirent *LOS_Readdir(DIR *dir)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return NULL;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Readdir == NULL) {
-        errno = ENOSYS;
-        return NULL;
-    }
-    return g_fs->fsFops->Readdir(dir);
-}
-
-int LOS_Closedir(DIR *dir)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Closedir == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Closedir(dir);
-}
-
-int LOS_Rmdir(const char *path)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Rmdir == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Rmdir(path);
-}
-
-int LOS_Rename(const char *oldName, const char *newName)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Rename == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Rename(oldName, newName);
-}
-
-int LOS_Statfs(const char *path, struct statfs *buf)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsMops == NULL || g_fs->fsMops->Statfs == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsMops->Statfs(path, buf);
-}
-
-int LOS_Ftruncate(int fd, off_t length)
-{
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Ftruncate == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Ftruncate(fd, length);
-}
-
-ssize_t LOS_Pread(int fd, void *buf, size_t nbyte, off_t offset)
-{
-#ifdef LOSCFG_RANDOM_DEV
-    if (fd == RANDOM_DEV_FD) {
-        if (nbyte == 0) {
-            return FS_SUCCESS;
-        }
-        if (buf == NULL) {
-            errno = EINVAL;
-            return FS_FAILURE;
-        }
-        if (nbyte > 1024) { /* 1024, max random_size */
-            nbyte = 1024; /* hks_generate_random: random_size must <= 1024 */
-        }
-        struct hks_blob key = {HKS_BLOB_TYPE_RAW, (uint8_t *)buf, nbyte};
-        if (hks_generate_random(&key) != 0) {
-            errno = EIO;
-            return FS_FAILURE;
-        }
-        return (ssize_t)nbyte;
-    }
-#endif
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Pread == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Pread(fd, buf, nbyte, offset);
-}
-
-ssize_t LOS_Pwrite(int fd, const void *buf, size_t nbyte, off_t offset)
-{
-#ifdef LOSCFG_RANDOM_DEV
-    if (fd == RANDOM_DEV_FD) {
-        errno = EBADF; /* "/dev/random" is readonly */
-        return FS_FAILURE;
-    }
-#endif
-    if (g_fs == NULL) {
-        errno = ENODEV;
-        return FS_FAILURE;
-    }
-    if (g_fs->fsFops == NULL || g_fs->fsFops->Pwrite == NULL) {
-        errno = ENOSYS;
-        return FS_FAILURE;
-    }
-    return g_fs->fsFops->Pwrite(fd, buf, nbyte, offset);
-}

components/fs/vfs/los_fs.h

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 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:
@@ -30,18 +30,19 @@
  */
 
 /**
- * @defgroup los_vfs fs
+ * @defgroup los_fs fs
  * @ingroup kernel
  */
 
-#ifndef _LOS_VFS_H_
-#define _LOS_VFS_H_
+#ifndef _LOS_FS_H_
+#define _LOS_FS_H_
 
 #include "los_config.h"
 #include "dirent.h"
 #include "sys/mount.h"
 #include "sys/statfs.h"
 #include "sys/stat.h"
+#include "sys/uio.h"
 #include "unistd.h"
 
 #ifdef __cplusplus
@@ -50,51 +51,72 @@ extern "C" {
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-int LOS_Open(const char *path, int oflag, ...);
-
+int LOS_Open(const char *path, int flags, ...);
 int LOS_Close(int fd);
-
-ssize_t LOS_Read(int fd, void *buf, size_t nbyte);
-
-ssize_t LOS_Write(int fd, const void *buf, size_t nbyte);
-
-off_t LOS_Lseek(int fd, off_t offset, int whence);
-
-int LOS_Unlink(const char *path);
-
-int LOS_Fstat(int fd, struct stat *buf);
-
-int LOS_Stat(const char *path, struct stat *buf);
-
-int LOS_Fsync(int fd);
-
-int LOS_Mkdir(const char *path, mode_t mode);
-
-DIR *LOS_Opendir(const char *dirName);
-
-struct dirent *LOS_Readdir(DIR *dir);
-
-int LOS_Closedir(DIR *dir);
-
-int LOS_Rmdir(const char *path);
-
-int LOS_Rename(const char *oldName, const char *newName);
-
+ssize_t LOS_Read(int fd, void *buff, size_t bytes);
+ssize_t LOS_Write(int fd, const void *buff, size_t bytes);
+off_t LOS_Lseek(int fd, off_t off, int whence);
+int LOS_Stat(const char *path, struct stat *stat);
 int LOS_Statfs(const char *path, struct statfs *buf);
-
+int LOS_Unlink(const char *path);
+int LOS_Rename(const char *oldpath, const char *newpath);
+int LOS_Fsync(int fd);
+DIR *LOS_Opendir(const char *path);
+struct dirent *LOS_Readdir(DIR *dir);
+int LOS_Closedir(DIR *dir);
+int LOS_Mkdir(const char *path, mode_t mode);
+int LOS_Rmdir(const char *path);
+int LOS_Lstat(const char *path, struct stat *buffer);
+int LOS_Fstat(int fd, struct stat *buf);
+int LOS_Fcntl(int fd, int cmd, ...);
+int LOS_Ioctl(int fd, int req, ...);
+ssize_t LOS_Readv(int fd, const struct iovec *iovBuf, int iovcnt);
+ssize_t LOS_Writev(int fd, const struct iovec *iovBuf, int iovcnt);
+ssize_t LOS_Pread(int fd, void *buff, size_t bytes, off_t off);
+ssize_t LOS_Pwrite(int fd, const void *buff, size_t bytes, off_t off);
+int LOS_Isatty(int fd);
+int LOS_Access(const char *path, int amode);
 int LOS_Ftruncate(int fd, off_t length);
-
-int LOS_FsUmount2(const char *target, int flag);
-
 int LOS_FsUmount(const char *target);
-
+int LOS_FsUmount2(const char *target, int flag);
 int LOS_FsMount(const char *source, const char *target,
-          const char *filesystemtype, unsigned long mountflags,
+          const char *fsType, unsigned long mountflags,
           const void *data);
+/*
+ * @brief Divide the device into partitions.
+ *
+ * @param dev Device name, which customized by caller, it is recommended to
+ * name it as: "emmc0", "emmc1", "flash0", etc. The name is combined with
+ * "device_type" + "device_id", and the last character is device_id.
+ * device_id >= 0 && device_id <= 9.
+ * @param fsType Filesystem type.
+ * @param lengthArray List of partition size. For example:
+ *     [0x10000000, 0x2000000], 256M and 512M partitions will be created and
+ *     left all will not allocated.
+ * @param partNum Length of 'lengthArray'.
+ *
+ * @return Return LOS_NOK if error. Return LOS_OK if success.
+ * Partition naming rules:
+ *     In the current vfs, after successfully calling the 'fdisk' hook,
+ *     "partNum" partitions will be created.
+ *     The partition naming rules is:
+ *         The name is a combination of: 'deviceName'+'p'+'partitionId',
+ *         such as "emmc0p0", "emmc0p1", "emmc0p2"...
+ */
+int LOS_DiskPartition(const char *dev, const char *fsType, int *lengthArray,
+                      int partnum);
 
-ssize_t LOS_Pread(int fd, void *buf, size_t nbyte, off_t offset);
-
-ssize_t LOS_Pwrite(int fd, const void *buf, size_t nbyte, off_t offset);
+/*
+ * @brief Format a partition.
+ *
+ * @param partName PartitionName, following the rule of fdisk hook.
+ * @param data For FatFs, the data indicates a pointer to a byte which
+ * specifies combination of FAT type flags, FM_FAT, FM_FAT32, FM_EXFAT and
+ * bitwise-or of these three, FM_ANY.
+ *
+ * @return Return LOS_NOK if error. Return LOS_OK if success.
+ */
+int LOS_PartitionFormat(const char *partName, char *fsType, void *data);
 
 #ifdef __cplusplus
 #if __cplusplus
@@ -102,4 +124,4 @@ extern "C" {
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-#endif /* _LOS_FS_H_ */
+#endif /* _LOS_FS_H_ */

components/fs/vfs/vfs_config.h

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 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:
@@ -32,54 +32,8 @@
 #ifndef _VFS_CONFIG_H_
 #define _VFS_CONFIG_H_
 
-#define PATH_MAX 256
-#define CONFIG_DISABLE_MQUEUE   // disable posix mqueue inode configure
-
-/* file system configur */
-
-#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 */
-/* 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
-
-/* config block num for fat file system */
-#define CONFIG_FS_FAT_READ_NUMS         7
-#define CONFIG_FS_FAT_BLOCK_NUMS        28
-
-#ifdef LOSCFG_FS_FAT_CACHE_SYNC_THREAD
-
-/* config the priority of sync task */
-
-#define CONFIG_FS_FAT_SYNC_THREAD_PRIO 10
-
-/* config dirty ratio of bcache for fat file system */
-
-#define CONFIG_FS_FAT_DIRTY_RATIO      60
-
-/* config time interval of sync thread for fat file system, in milliseconds */
-
-#define CONFIG_FS_FAT_SYNC_INTERVAL    5000
-#endif
-
-#define CONFIG_FS_FLASH_BLOCK_NUM 1
-
-#define CONFIG_FS_MAX_LNK_CNT 40
-
-/* nfs configure */
-
-#define CONFIG_NFS_MACHINE_NAME "IPC"   // nfs device name is IPC
-#define CONFIG_NFS_MACHINE_NAME_SIZE 3  // size of nfs machine name
-
-
 /* file descriptors configure */
 
-#define CONFIG_NFILE_STREAMS        1   // enable file stream
-#define CONFIG_STDIO_BUFFER_SIZE    0
-#define CONFIG_NUNGET_CHARS         0
 #define MIN_START_FD 3 // 0,1,2 are used for stdin,stdout,stderr respectively
 
 /* net configure */
@@ -87,12 +41,8 @@
 #ifdef LOSCFG_NET_LWIP_SACK             // enable socket and net function
 #include "lwip/lwipopts.h"
 #define CONFIG_NSOCKET_DESCRIPTORS  LWIP_CONFIG_NUM_SOCKETS  // max numbers of socket descriptor
-#define CONFIG_NET_SENDFILE         1   // enable sendfile function
-#define CONFIG_NET_TCP              1   // enable sendfile and send function
 #else
 #define CONFIG_NSOCKET_DESCRIPTORS  0
-#define CONFIG_NET_SENDFILE         0   // disable sendfile function
-#define CONFIG_NET_TCP              0   // disable sendfile and send function
 #endif
 
 /* max numbers of other descriptors except socket descriptors */

components/fs/vfs/vfs_files.c

@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2022-2022 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 "vfs_files.h"
+#include "errno.h"
+#include "stdio.h"
+#include "stdlib.h"
+#include "string.h"
+#include "los_config.h"
+#include "vfs_config.h"
+#include "vfs_mount.h"
+#include "vfs_operations.h"
+
+static struct File g_files[NR_OPEN_DEFAULT];
+
+int FileToFd(struct File *file)
+{
+    if (file == NULL) {
+        return LOS_NOK;
+    }
+    return file - g_files + MIN_START_FD;
+}
+
+struct File *FdToFile(int fd)
+{
+    if ((fd < MIN_START_FD) || (fd >= CONFIG_NFILE_DESCRIPTORS)) {
+        return NULL;
+    }
+    return &g_files[fd - MIN_START_FD];
+}
+
+struct File *VfsFileGet(void)
+{
+    int i;
+    /* protected by g_fsMutex */
+    for (i = 0; i < NR_OPEN_DEFAULT; i++) {
+        if (g_files[i].fStatus == FILE_STATUS_NOT_USED) {
+            g_files[i].fStatus = FILE_STATUS_INITING;
+            return &g_files[i];
+        }
+    }
+
+    return NULL;
+}
+
+struct File *VfsFileGetSpec(int fd)
+{
+    if ((fd < MIN_START_FD) || (fd >= CONFIG_NFILE_DESCRIPTORS)) {
+        return NULL;
+    }
+    if (g_files[fd - MIN_START_FD].fStatus == FILE_STATUS_NOT_USED) {
+        g_files[fd - MIN_START_FD].fStatus = FILE_STATUS_INITING;
+        return &g_files[fd - MIN_START_FD];
+    }
+
+    return NULL;
+}
+
+void VfsFilePut(struct File *file)
+{
+    if (file == NULL) {
+        return;
+    }
+    file->fFlags = 0;
+    file->fFops = NULL;
+    file->fData = NULL;
+    file->fMp = NULL;
+    file->fOffset = 0;
+    file->fOwner = -1;
+    file->fullPath = NULL;
+    file->fStatus = FILE_STATUS_NOT_USED;
+}

components/fs/vfs/vfs_files.h

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2022-2022 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 _VFS_FILES_H_
+#define _VFS_FILES_H_
+
+#include "dirent.h"
+#include "sys/stat.h"
+#include "unistd.h"
+#include "los_compiler.h"
+
+#ifdef __cplusplus
+#if __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+#define FILE_STATUS_NOT_USED 0
+#define FILE_STATUS_INITING 1
+#define FILE_STATUS_READY 2
+#define FILE_STATUS_CLOSING 3
+
+struct FileOps;
+struct File;
+struct Dir;
+struct MountPoint;
+
+struct FileOps {
+    int     (*open)(struct File *, const char *, int);
+    int     (*close)(struct File *);
+    ssize_t (*read)(struct File *, char *, size_t);
+    ssize_t (*write)(struct File *, const char *, size_t);
+    off_t   (*lseek)(struct File *, off_t, int);
+    int     (*stat)(struct MountPoint *, const char *, struct stat *);
+    int     (*truncate)(struct File *, off_t);
+    int     (*unlink)(struct MountPoint *, const char *);
+    int     (*rename)(struct MountPoint *, const char *, const char *);
+    int     (*ioctl)(struct File *, int, unsigned long);
+    int     (*sync)(struct File *);
+    int     (*opendir)(struct Dir *, const char *);
+    int     (*readdir)(struct Dir *, struct dirent *);
+    int     (*closedir)(struct Dir *);
+    int     (*mkdir)(struct MountPoint *, const char *);
+    int     (*rmdir)(struct MountPoint *, const char *);
+};
+
+struct File {
+    const struct FileOps *fFops;
+    UINT32 fFlags;
+    UINT32 fStatus;
+    off_t fOffset;
+    INT32 fOwner;
+    struct MountPoint *fMp;
+    void *fData; /* file system opreations handle, fatfs FIL, etc. */
+    const char *fullPath;
+};
+
+struct Dir {
+    struct MountPoint *dMp;
+    struct dirent      dDent;
+    off_t              dOffset;
+    void              *dData;
+};
+
+int FileToFd(struct File *file);
+struct File *FdToFile(int fd);
+struct File *VfsFileGet(void);
+struct File *VfsFileGetSpec(int fd);
+void VfsFilePut(struct File *file);
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+#endif /* _VFS_FILES_H_ */

components/fs/vfs/vfs_init.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2022-2022 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 "stdlib.h"
+#include "vfs_operations.h"
+#if (LOSCFG_SUPPORT_LITTLEFS == 1)
+#include "lfs_adapter.h"
+#endif
+#if (LOSCFG_SUPPORT_FATFS == 1)
+#include "fatfs.h"
+#endif
+#include "los_compiler.h"
+#include "los_mux.h"
+
+int OsVfsInit(void)
+{
+    if (LOS_MuxCreate(&g_fsMutex) != LOS_OK) {
+        return LOS_NOK;
+    }
+#if (LOSCFG_SUPPORT_FATFS == 1)
+    FatFsInit();
+#endif
+
+#if (LOSCFG_SUPPORT_LITTLEFS == 1)
+    LfsInit();
+#endif
+    return LOS_OK;
+}

components/fs/vfs/vfs_maps.c

@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2022-2022 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 "vfs_maps.h"
+#include "vfs_operations.h"
+#include <stdlib.h>
+#include "securec.h"
+#include "los_debug.h"
+#include "los_compiler.h"
+
+struct FsMap *g_fsMap = NULL;
+
+struct FsMap *VfsFsMapGet(const char *fsType)
+{
+    struct FsMap *curr = g_fsMap;
+
+    (void)VfsLock();
+    while (curr != NULL) {
+        if ((curr->fsType != NULL) && (fsType != NULL) &&
+            (strcmp(curr->fsType, fsType) == 0)) {
+            (void)VfsUnlock();
+            return curr;
+        }
+        curr = curr->next;
+    }
+
+    VfsUnlock();
+    return NULL;
+}
+
+int OsFsRegister(const char *fsType, struct MountOps *fsMops,
+        struct FileOps *fsFops, struct FsManagement *fsMgt)
+{
+    if ((fsMops == NULL) || (fsFops == NULL)) {
+        return LOS_NOK;
+    }
+
+    struct FsMap *newfs = (struct FsMap *)malloc(sizeof(struct FsMap));
+    if (newfs == NULL) {
+        PRINT_ERR("Fs register malloc failed, fsType %s.\n", fsType);
+        return LOS_NOK;
+    }
+    (void)memset_s(newfs, sizeof(struct FsMap), 0, sizeof(struct FsMap));
+
+    newfs->fsType = strdup(fsType);
+    if (newfs->fsType == NULL) {
+        free(newfs);
+        return LOS_NOK;
+    }
+
+    newfs->fsMops = fsMops;
+    newfs->fsFops = fsFops;
+    newfs->fsMgt = fsMgt;
+    newfs->fsRefs = 0;
+
+    (void)VfsLock();
+    newfs->next = g_fsMap;
+    g_fsMap = newfs;
+
+    VfsUnlock();
+    return LOS_OK;
+}

components/fs/vfs/vfs_maps.h

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2022-2022 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 _VFS_MAPS_H_
+#define _VFS_MAPS_H_
+
+#include "los_compiler.h"
+
+#ifdef __cplusplus
+#if __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+struct MountOps;
+
+struct FsManagement {
+    int (*fdisk)(const char *dev, int *lengthArray, int partNum);
+    int (*format)(const char *partName, void *data);
+};
+
+
+struct FsMap {
+    const char *fsType;
+    const struct MountOps *fsMops;
+    const struct FileOps *fsFops;
+    const struct FsManagement *fsMgt;
+    UINT32 fsRefs;
+    struct FsMap *next;
+};
+
+int OsFsRegister(const char *fsType, struct MountOps *fsMops,
+        struct FileOps *fsFops, struct FsManagement *fsMgt);
+struct FsMap *VfsFsMapGet(const char *fsType);
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+#endif /* _VFS_MAPS_H_ */

components/fs/vfs/vfs_mount.c

@@ -0,0 +1,294 @@
+/*
+ * Copyright (c) 2022-2022 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 "vfs_mount.h"
+#include "vfs_files.h"
+#include "vfs_maps.h"
+#include "vfs_config.h"
+#include "stdlib.h"
+#include "string.h"
+#include "vfs_operations.h"
+#include "los_compiler.h"
+#include "los_debug.h"
+#include "los_fs.h"
+#include "los_mux.h"
+
+struct MountPoint *g_mountPoints = NULL;
+
+static void MpDeleteFromList(struct MountPoint *mp)
+{
+    struct MountPoint *prev = NULL;
+
+    /* delete mp from mount list */
+    if (g_mountPoints == mp) {
+        g_mountPoints = mp->mNext;
+    } else {
+        for (prev = g_mountPoints; prev != NULL; prev = prev->mNext) {
+            if (prev->mNext != mp) {
+                continue;
+            }
+
+            prev->mNext = mp->mNext;
+            break;
+        }
+    }
+}
+
+struct MountPoint *VfsMpFind(const char *path, const char **pathInMp)
+{
+    struct MountPoint *mp = g_mountPoints;
+    struct MountPoint *bestMp = NULL;
+    int bestMatches = 0;
+    if (path == NULL) {
+        return NULL;
+    }
+    if (pathInMp != NULL) {
+        *pathInMp = NULL;
+    }
+    while ((mp != NULL) && (mp->mPath != NULL)) {
+        const char *mPath = mp->mPath;
+        const char *iPath = path;
+        const char *t = NULL;
+        int matches = 0;
+        do {
+            while ((*mPath == '/') && (*(mPath + 1) != '/')) {
+                mPath++;
+            }
+            while ((*iPath == '/') && (*(iPath + 1) != '/')) {
+                iPath++;
+            }
+
+            t = strchr(mPath, '/');
+            if (t == NULL) {
+                t = strchr(mPath, '\0');
+            }
+            if ((t == mPath) || (t == NULL)) {
+                break;
+            }
+            if (strncmp(mPath, iPath, (size_t)(t - mPath)) != 0) {
+                goto next; /* this mount point do not match, check next */
+            }
+
+            iPath += (t - mPath);
+            if ((*iPath != '\0') && (*iPath != '/')) {
+                goto next;
+            }
+
+            matches += (t - mPath);
+            mPath += (t - mPath);
+        } while (*mPath != '\0');
+
+        if (matches > bestMatches) {
+            bestMatches = matches;
+            bestMp = mp;
+
+            while ((*iPath == '/') && (*(iPath + 1) != '/')) {
+                iPath++;
+            }
+
+            if (pathInMp != NULL) {
+                *pathInMp = path;
+            }
+        }
+    next:
+        mp = mp->mNext;
+    }
+    return bestMp;
+}
+
+int LOS_FsMount(const char *source, const char *target,
+          const char *fsType, unsigned long mountflags,
+          const void *data)
+{
+    int ret;
+    struct MountPoint *mp = NULL;
+    const char *pathInMp = NULL;
+
+    /* target must begin with '/', for example /system, /data, etc. */
+    if ((target == NULL) || (target[0] != '/')) {
+        return LOS_NOK;
+    }
+
+    (void)VfsLock();
+    /* find mp by target, to see if it was mounted */
+    mp = VfsMpFind(target, &pathInMp);
+    if (mp != NULL && pathInMp != NULL) {
+        goto errout;
+    }
+
+    /* Find fsMap coresponding to the fsType */
+    struct FsMap *mFs = VfsFsMapGet(fsType);
+    if ((mFs == NULL) || (mFs->fsMops == NULL) ||
+        (mFs->fsMops->mount == NULL)) {
+        goto errout;
+    }
+
+    mp = (struct MountPoint *)malloc(sizeof(struct MountPoint));
+    if (mp == NULL) {
+        goto errout;
+    }
+
+    mp->mFs = mFs;
+    mp->mDev = NULL;
+    if (source != NULL) {
+        mp->mDev = strdup(source);
+        if (mp->mDev == NULL) {
+            goto errout;
+        }
+    }
+
+    mp->mPath = strdup(target);
+    if (mp->mPath == NULL) {
+        goto errout;
+    }
+
+    ret = mp->mFs->fsMops->mount(mp, mountflags, data);
+    if (ret != 0) {
+        /* errno is set */
+        PRINT_ERR("mount failed, target %s.\n", target);
+        goto errout;
+    }
+    mp->mRefs = 0;
+    mp->mWriteEnable = (mountflags & MS_RDONLY) ? FALSE : TRUE;
+    mp->mFs->fsRefs++;
+    mp->mNext = g_mountPoints;
+    g_mountPoints = mp;
+    VfsUnlock();
+    return LOS_OK;
+
+errout:
+    free((void *)mp->mPath);
+    free((void *)mp->mDev);
+    free(mp);
+    VfsUnlock();
+    return LOS_NOK;
+}
+
+int LOS_FsUmount(const char *target)
+{
+    struct MountPoint *mp = NULL;
+    const char *pathInMp = NULL;
+    int ret = LOS_NOK;
+
+    (void)VfsLock();
+    if (target == NULL) {
+        goto errout;
+    }
+
+    mp = VfsMpFind(target, &pathInMp);
+    if ((mp == NULL) || (mp->mRefs != 0)) {
+        goto errout;
+    }
+
+    if ((mp->mFs == NULL) || (mp->mFs->fsMops == NULL) ||
+        (mp->mFs->fsMops->umount == NULL)) {
+        goto errout;
+    }
+
+    ret = mp->mFs->fsMops->umount(mp);
+    if (ret != 0) {
+        /* errno is set */
+        goto errout;
+    }
+
+    /* delete mp from mount list */
+    MpDeleteFromList(mp);
+    mp->mFs->fsRefs--;
+    free((void *)mp->mPath);
+    free((void *)mp->mDev);
+    free(mp);
+
+    VfsUnlock();
+    return LOS_OK;
+
+errout:
+    PRINT_ERR("umount2 failed, target %s.\n", target);
+    VfsUnlock();
+    return LOS_NOK;
+}
+
+static void CloseFdsInMp(struct MountPoint *mp)
+{
+    for (int fd = 0; fd < NR_OPEN_DEFAULT; fd++) {
+        struct File *f = FdToFile(fd);
+        if (f == NULL) {
+            continue;
+        }
+        if ((f->fMp == mp) &&
+            (f->fFops != NULL) &&
+            (f->fFops->close != NULL)) {
+            (void)f->fFops->close(f);
+        }
+    }
+}
+
+int LOS_FsUmount2(const char *target, int flag)
+{
+    struct MountPoint *mp = NULL;
+    const char *pathInMp = NULL;
+    int ret = LOS_NOK;
+
+    (void)VfsLock();
+    if (target == NULL) {
+        goto errout;
+    }
+
+    mp = VfsMpFind(target, &pathInMp);
+    if ((mp == NULL) || (mp->mRefs != 0) ||
+        (mp->mFs == NULL) || (mp->mFs->fsMops == NULL) ||
+        (mp->mFs->fsMops->umount2 == NULL)) {
+        goto errout;
+    }
+
+    /* Close all files under the mount point */
+    if ((UINT32)flag & MNT_FORCE) {
+        CloseFdsInMp(mp);
+    }
+
+    ret = mp->mFs->fsMops->umount2(mp, flag);
+    if (ret != 0) {
+        /* errno is set */
+        goto errout;
+    }
+
+    /* delete mp from mount list */
+    MpDeleteFromList(mp);
+    mp->mFs->fsRefs--;
+    free((void *)mp->mPath);
+    free((void *)mp->mDev);
+    free(mp);
+
+    VfsUnlock();
+    return LOS_OK;
+
+errout:
+    PRINT_ERR("umount2 failed, target %s.\n", target);
+    VfsUnlock();
+    return LOS_NOK;
+}

components/fs/vfs/vfs_mount.h

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2022-2022 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 _VFS_MOUNT_H_
+#define _VFS_MOUNT_H_
+
+#include "sys/statfs.h"
+#include "los_compiler.h"
+
+#ifdef __cplusplus
+#if __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+struct FsMap;
+struct MountPoint;
+
+struct MountOps {
+    int (*mount)(struct MountPoint *mp, unsigned long mountflags,
+                 const void *data);
+    int (*umount)(struct MountPoint *mp);
+    int (*umount2)(struct MountPoint *mp, int flag);
+    int (*statfs)(const char *path, struct statfs *buf);
+};
+
+struct MountPoint {
+    struct FsMap      *mFs;    /* file system info */
+    struct MountPoint *mNext;  /* point to next mount point */
+    const char        *mPath;  /* target path, /system, /usr, etc. */
+    const char        *mDev;   /* device, "emmc0p0", "emmc0p1", etc. */
+    UINT32             mRefs;  /* reference to mount point */
+    void              *mData;  /* specific file system handle */
+    BOOL               mWriteEnable; /* writable flag */
+};
+
+extern struct MountPoint *g_mountPoints;
+#define LOS_MP_FOR_EACH_ENTRY(prev) \
+        for (prev = g_mountPoints; prev != NULL; prev = prev->mNext)
+
+struct MountPoint *VfsMpFind(const char *path, const char **pathInMp);
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* __cplusplus */
+
+#endif /* _VFS_MOUNT_H_ */