yystopf/openharmony_kernel_liteos_a
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

add OpenHarmony 1.0 baseline

Browse Source
This commit is contained in:
wenjun
2020-09-08 10:21:39 +08:00
parent 94f5f466b4
commit 6df931fc98
736 changed files with 111817 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
kernel/extended/vdso/src/Makefile Executable file
View File

@@ -0,0 +1,40 @@
# Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
# Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this list of
# conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice, this list
# of conditions and the following disclaimer in the documentation and/or other materials
# provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its contributors may be used
# to endorse or promote products derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
include $(LITEOSTOPDIR)/config.mk
MODULE_NAME := $(notdir $(shell pwd)/../vdso)
LOCAL_SRCS := $(wildcard *.c) $(wildcard *.S)
LOCAL_INCLUDE := -I $(LITEOSTOPDIR)/kernel/base/include -I $(LITEOSTOPDIR)/kernel/extended/include -I $(LITEOSTOPDIR)/kernel/extended/vdso/include
LOCAL_FLAGS := $(LOCAL_INCLUDE)
include $(MODULE)

127
kernel/extended/vdso/src/los_vdso.c Executable file
View File

@@ -0,0 +1,127 @@
/*
* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (c) 2020, 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_vdso_pri.h"
#include "los_vdso_datapage.h"
#include "los_vm_map.h"
#include "los_vm_lock.h"
#include "los_vm_phys.h"
#include "los_process_pri.h"
LITE_VDSO_DATAPAGE VdsoDataPage g_vdsoDataPage __attribute__((__used__));
STATIC size_t g_vdsoSize;
UINT32 OsInitVdso(VOID)
{
g_vdsoSize = &__vdso_text_end - &__vdso_data_start;
if (memcmp((CHAR *)(&__vdso_text_start), ELF_HEAD, ELF_HEAD_LEN)) {
PRINT_ERR("VDSO Init Failed!\n");
return LOS_NOK;
}
return LOS_OK;
}
STATIC INT32 OsMapVdso(LosVmSpace *space, size_t len, PADDR_T paddr, VADDR_T vaddr, UINT32 flag)
{
STATUS_T ret;
while (len > 0) {
ret = LOS_ArchMmuMap(&(space->archMmu), vaddr, paddr, 1, flag);
if (ret != 1) {
PRINT_ERR("VDSO Load Failed! : LOS_ArchMmuMap!\n");
return LOS_NOK;
}
paddr += PAGE_SIZE;
vaddr += PAGE_SIZE;
len -= PAGE_SIZE;
}
return LOS_OK;
}
vaddr_t OsLoadVdso(const LosProcessCB *processCB)
{
INT32 ret = -1;
LosVmMapRegion *vdsoRegion = NULL;
UINT32 flag = VM_MAP_REGION_FLAG_PERM_USER | VM_MAP_REGION_FLAG_PERM_READ | VM_MAP_REGION_FLAG_PERM_EXECUTE;
if ((processCB == NULL) || (processCB->vmSpace == NULL)) {
return 0;
}
(VOID)LOS_MuxAcquire(&processCB->vmSpace->regionMux);
vdsoRegion = LOS_RegionAlloc(processCB->vmSpace, 0, g_vdsoSize, flag, 0);
if (vdsoRegion == NULL) {
PRINT_ERR("%s %d, region alloc failed in vdso load\n", __FUNCTION__, __LINE__);
goto LOCK_RELEASE;
}
vdsoRegion->regionFlags |= VM_MAP_REGION_FLAG_VDSO;
ret = OsMapVdso(processCB->vmSpace, g_vdsoSize, LOS_PaddrQuery((VOID *)(&__vdso_data_start)),
vdsoRegion->range.base, flag);
if (ret != LOS_OK) {
ret = LOS_RegionFree(processCB->vmSpace, vdsoRegion);
if (ret) {
PRINT_ERR("%s %d, free region failed, ret = %d\n", __FUNCTION__, __LINE__, ret);
}
ret = -1;
}
LOCK_RELEASE:
(VOID)LOS_MuxRelease(&processCB->vmSpace->regionMux);
if (ret == LOS_OK) {
return (vdsoRegion->range.base + PAGE_SIZE);
}
return 0;
}
STATIC VOID OsLockVdso(VdsoDataPage *vdsoDataPage)
{
vdsoDataPage->lockCount = 1;
Dmb();
}
STATIC VOID OsUnlockVdso(VdsoDataPage *vdsoDataPage)
{
Dmb();
vdsoDataPage->lockCount = 0;
}
VOID OsUpdateVdsoTimeval(VOID)
{
VdsoDataPage *kVdsoDataPage = (VdsoDataPage *)(&__vdso_data_start);
OsLockVdso(kVdsoDataPage);
OsGetVdsoTime(kVdsoDataPage);
OsUnlockVdso(kVdsoDataPage);
}

34
kernel/extended/vdso/src/los_vdso_text.S Executable file
View File

@@ -0,0 +1,34 @@
/*
* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (c) 2020, 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.
*/
.globl __vdso_text_start
.section .data.vdso.text
__vdso_text_start:
.incbin "../usr/OHOS-vdso.so"