使用backtrace调试

最新推荐文章于 2024-04-17 08:00:22 发布

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本文介绍了一个使用backtrace进行堆栈跟踪的示例程序。通过设置信号处理函数，在接收到特定信号时打印当前进程的调用堆栈信息。该程序特别关注了SIGILL、SIGABRT、SIGBUS和SIGSEGV等信号。

使用backtrace调试

void dump(int signo)
{
printf("\n ***** start dump *****\n");

void*array[30];

size_t size;char**strings;
size_t i;

size = backtrace (array,30);
strings = backtrace_symbols (array, size);

fprintf (stdout,"Obtained %zd stack frames.nm\n", size);

for(i =0; i < size; i++)
fprintf (stdout,"%s ", strings[i]);

free (strings);

printf("\n ***** end dump *****\n");

exit(0);
}

static void signal_handler(int sig) {
char *name;

switch (sig) {
case SIGILL:
name = "SIGILL";
break;
case SIGABRT:
name = "SIGABRT";
break;
case SIGBUS:
name = "SIGBUS";
break;
case SIGSEGV:
name = "SIGSEGV";
break;
default:
name = "??";
}
fprintf(stdout, "[received signal] [%s]\n", name);
printStackTrace();
printProfileInfo();

signal(SIGILL, NULL);
signal(SIGABRT, NULL);
signal(SIGBUS, NULL);
//signal(SIGSEGV, NULL);
signal(SIGSEGV, dump);

abort();
}

void InitializeNativeCode()
{
/*
* Create signal handlers to dump Java stack in case of coredumps
*/
signal(SIGILL, signal_handler);
signal(SIGABRT, signal_handler);
signal(SIGBUS, signal_handler);

//signal(SIGSEGV, signal_handler);
signal(SIGSEGV, dump);

signal(SIGPIPE, SIG_IGN);
}