kernel_liteos_a/kernel/common/blackbox/los_blackbox_common.c

127 lines
4.2 KiB
C

/*
* Copyright (c) 2021-2021 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.
*/
/* ------------ includes ------------ */
#include "los_blackbox_common.h"
#ifdef LOSCFG_LIB_LIBC
#include "stdlib.h"
#include "unistd.h"
#endif
#ifdef LOSCFG_FS_VFS
#include "fs/fs.h"
#endif
#include "securec.h"
#include "los_memory.h"
/* ------------ local macroes ------------ */
/* ------------ local prototypes ------------ */
/* ------------ local function declarations ------------ */
/* ------------ global function declarations ------------ */
/* ------------ local variables ------------ */
/* ------------ function definitions ------------ */
int FullWriteFile(const char *filePath, const char *buf, size_t bufSize, int isAppend)
{
#ifdef LOSCFG_FS_VFS
int fd;
int totalToWrite = (int)bufSize;
int totalWrite = 0;
if (filePath == NULL || buf == NULL || bufSize == 0) {
BBOX_PRINT_ERR("filePath: %p, buf: %p, bufSize: %lu!\n", filePath, buf, bufSize);
return -1;
}
if (!IsLogPartReady()) {
BBOX_PRINT_ERR("log path [%s] isn't ready to be written!\n", LOSCFG_LOG_ROOT_PATH);
return -1;
}
fd = open(filePath, O_CREAT | O_RDWR | (isAppend ? O_APPEND : O_TRUNC), 0644);
if (fd < 0) {
BBOX_PRINT_ERR("Create file [%s] failed, fd: %d!\n", filePath, fd);
return -1;
}
while (totalToWrite > 0) {
int writeThisTime = write(fd, buf, totalToWrite);
if (writeThisTime < 0) {
BBOX_PRINT_ERR("Failed to write file [%s]!\n", filePath);
(void)close(fd);
return -1;
}
buf += writeThisTime;
totalToWrite -= writeThisTime;
totalWrite += writeThisTime;
}
(void)close(fd);
return (totalWrite == (int)bufSize) ? 0 : -1;
#else
(VOID)filePath;
(VOID)buf;
(VOID)bufSize;
(VOID)isAppend;
return -1;
#endif
}
int SaveBasicErrorInfo(const char *filePath, struct ErrorInfo *info)
{
char *buf = NULL;
if (filePath == NULL || info == NULL) {
BBOX_PRINT_ERR("filePath: %p, event: %p!\n", filePath, info);
return -1;
}
buf = LOS_MemAlloc(m_aucSysMem1, ERROR_INFO_MAX_LEN);
if (buf == NULL) {
BBOX_PRINT_ERR("LOS_MemAlloc failed!\n");
return -1;
}
(void)memset_s(buf, ERROR_INFO_MAX_LEN, 0, ERROR_INFO_MAX_LEN);
(void)snprintf_s(buf, ERROR_INFO_MAX_LEN, ERROR_INFO_MAX_LEN - 1,
ERROR_INFO_HEADER_FORMAT, info->event, info->module, info->errorDesc);
*(buf + ERROR_INFO_MAX_LEN - 1) = '\0';
(void)FullWriteFile(filePath, buf, strlen(buf), 0);
(void)LOS_MemFree(m_aucSysMem1, buf);
return 0;
}
#ifdef LOSCFG_FS_VFS
bool IsLogPartReady(void)
{
return access(LOSCFG_LOG_ROOT_PATH, W_OK) == 0;
}
#else
bool IsLogPartReady(void)
{
return TRUE;
}
#endif