add OpenHarmony 1.0 baseline
This commit is contained in:
wenjun
Executable
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# Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
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# Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification,
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# are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this list of
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# conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice, this list
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# of conditions and the following disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its contributors may be used
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# to endorse or promote products derived from this software without specific prior written
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# permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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include $(LITEOSTOPDIR)/config.mk
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VDSO_SO = OHOS-vdso
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VDSO_SRCS := los_vdso_sys.c
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VDSO_INCLUDE := -I $(LITEOSTOPDIR)/kernel/extended/vdso/include \
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-I $(LITEOSTOPDIR)/kernel/include \
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-I $(LITEOSTOPDIR)/kernel/common \
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-I $(LITEOSTOPDIR)/bsd/compat/linuxkpi/include
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VDSO_CCFLAGS := -nostdlib -fPIC $(LITEOS_SSP) $(LITEOS_CORE_COPTS) $(WARNING_AS_ERROR) $(LITEOS_COPTS_OPTMIZE)
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ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
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VDSO_CCFLAGS += $(LLVM_EXTRA_OPTS) --sysroot=$(LITEOSTOPDIR)/../../prebuilts/lite/sysroot/
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endif
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VDSO_LDFLAGS := -shared -s -Bsymbolic -T los_vdso.ld
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all: $(VDSO_SO)
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$(VDSO_SO):
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$(HIDE)$(CC) $(VDSO_INCLUDE) $(VDSO_CCFLAGS) -c -o $@.o $(VDSO_SRCS)
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$(HIDE)$(LD) $(VDSO_LDFLAGS) -o $@.so $@.o
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clean:
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$(HIDE)$(RM) -rf *.o *.so
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Executable
+37
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OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
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OUTPUT_ARCH(arm)
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SECTIONS
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{
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. = SIZEOF_HEADERS;
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.hash : { *(.hash) } :text
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.dynsym : { *(.dynsym) }
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.dynstr : { *(.dynstr) }
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.dynamic : { *(.dynamic) } :text :dynamic
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.rodata : { *(.rodata*) } :text
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.text : { *(.text*) } :text
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/DISCARD/ : {
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*(.data .data.* .sdata*)
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*(.bss .sbss .dynbss .dynsbss)
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}
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}
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PHDRS
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{
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text PT_LOAD FLAGS(5) FILEHDR PHDRS;
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dynamic PT_DYNAMIC FLAGS(4);
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}
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VERSION
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{
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OHOS {
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global:
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VdsoClockGettime;
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local: *;
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};
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}
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Executable
+113
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/*
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* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "asm/page.h"
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#include "time.h"
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#include "sys/time.h"
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#include "los_typedef.h"
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#include "los_vdso_datapage.h"
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STATIC INT32 VdsoGetRealtimeCoarse(struct timespec *ts, const VdsoDataPage *usrVdsoDataPage)
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{
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do {
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if (!usrVdsoDataPage->lockCount) {
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ts->tv_sec = usrVdsoDataPage->realTimeSec;
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ts->tv_nsec = usrVdsoDataPage->realTimeNsec;
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return 0;
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}
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} while (1);
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}
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STATIC INT32 VdsoGetMonotimeCoarse(struct timespec *ts, const VdsoDataPage *usrVdsoDataPage)
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{
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do {
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if (!usrVdsoDataPage->lockCount) {
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ts->tv_sec = usrVdsoDataPage->monoTimeSec;
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ts->tv_nsec = usrVdsoDataPage->monoTimeNsec;
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return 0;
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}
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} while (1);
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}
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STATIC size_t LocVdsoStart(size_t vdsoStart, const CHAR *elfHead, const size_t len)
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{
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CHAR *head = NULL;
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INT32 i;
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INT32 loop;
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for (i = 1; i <= MAX_PAGES; i++) {
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head = (CHAR *)((UINTPTR)vdsoStart);
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for (loop = len; loop >= 1; loop--) {
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if (*head++ != *(elfHead + len - loop)) {
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break;
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}
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}
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if (loop) {
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vdsoStart -= PAGE_SIZE;
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} else {
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break;
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}
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}
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if (i > MAX_PAGES) {
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return 0;
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}
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return (vdsoStart - PAGE_SIZE);
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}
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INT32 VdsoClockGettime(clockid_t clk, struct timespec *ts)
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{
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INT32 ret;
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size_t vdsoStart;
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__asm__ __volatile__("mov %0, pc" : "=r"(vdsoStart));
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vdsoStart = vdsoStart - (vdsoStart & (PAGE_SIZE - 1));
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vdsoStart = LocVdsoStart(vdsoStart, ELF_HEAD, ELF_HEAD_LEN);
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if (vdsoStart == 0) {
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return -1;
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}
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VdsoDataPage *usrVdsoDataPage = (VdsoDataPage *)(UINTPTR)vdsoStart;
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switch (clk) {
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case CLOCK_REALTIME_COARSE:
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ret = VdsoGetRealtimeCoarse(ts, usrVdsoDataPage);
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break;
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case CLOCK_MONOTONIC_COARSE:
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ret = VdsoGetMonotimeCoarse(ts, usrVdsoDataPage);
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break;
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default:
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ret = -1;
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break;
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}
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return ret;
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}
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