Line data    Source code

       1              : /**
       2              :  * Copyright (c) 2025 Huawei Technologies Co., Ltd.
       3              :  * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
       4              :  * CANN Open Software License Agreement Version 2.0 (the "License").
       5              :  * Please refer to the License for details. You may not use this file except in compliance with the License.
       6              :  * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
       7              :  * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
       8              :  * See LICENSE in the root of the software repository for the full text of the License.
       9              :  */
      10              : #include "stacktrace_unwind_dfx.h"
      11              : #include <fcntl.h>
      12              : #include "stacktrace_logger.h"
      13              : #include "trace_system_api.h"
      14              : #include "adiag_utils.h"
      15              : 
      16              : #define TMP_DUMP_STACK_PATH "/tmp/stack.bin"
      17              : #define TMP_DUMP_ELF_PATH "/tmp/elf_%zu.bin"
      18              : #define MAX_FILE_PATH_LENGTH 100U
      19              : #ifdef ENABLE_DUMP_DFX_INFO
      20              : static void DumpToFile(const char *filePath, uintptr_t addr, size_t size)
      21              : {
      22              :     #define TRACE_FILE_MODE         0640U
      23              :     int32_t fd = TraceOpen(filePath, (uint32_t)O_CREAT | (uint32_t)O_WRONLY | (uint32_t)O_APPEND,
      24              :         TRACE_FILE_MODE);
      25              :     if (fd == -1) {
      26              :         return;
      27              :     }
      28              :     write(fd, (void *)addr, size);
      29              :     close(fd);
      30              :     fd = -1;
      31              : }
      32              : #endif
      33              : 
      34           16 : void DumpStackToFile(uintptr_t addr, size_t size)
      35              : {
      36              : #ifndef ENABLE_DUMP_DFX_INFO
      37              :     (void)addr;
      38              :     (void)size;
      39              : #else
      40              :     DumpToFile(TMP_DUMP_STACK_PATH, addr, size);
      41              : #endif
      42           16 : }
      43              : 
      44            0 : void DumpMemory(uintptr_t addr, size_t size)
      45              : {
      46              : #ifndef ENABLE_DUMP_DFX_INFO
      47              :     (void)addr;
      48              :     (void)size;
      49              : #else
      50              :     static size_t cnt = 0;
      51              :     static uintptr_t addrList[20] = {0};
      52              :     for (size_t i = 0; i < cnt; i++) {
      53              :         if (addr == addrList[i]) {
      54              :             return;
      55              :         }
      56              :     }
      57              :     addrList[cnt] = addr;
      58              :     cnt++;
      59              :     char filePath[MAX_FILE_PATH_LENGTH];
      60              :     int32_t ret = sprintf_s(filePath, MAX_FILE_PATH_LENGTH, TMP_DUMP_ELF_PATH, cnt);
      61              :     if (ret == -1) {
      62              :         LOGE("snprintf_s elf path failed, strerr=%s", strerror(AdiagGetErrorCode()));
      63              :         return;
      64              :     }
      65              :     DumpToFile(filePath, addr, size);
      66              :     LOGI("[LLT] write elf to %s , size : %zu", filePath, size);
      67              : #endif
      68            0 : }