backtrace

backtrace代码里获取调用堆栈

介绍用法

[1] http://man7.org/linux/man-pages/man3/backtrace.3.html
[2] https://www.gnu.org/software/libc/manual/html_node/Backtraces.html
[3] https://www.cnblogs.com/mickole/p/3246702.html

代码

void PrintTrace() {
    int nptrs;
    void *buffer[200]; 
    char **strings;

    nptrs = backtrace(buffer, 200);
    strings = backtrace_symbols(buffer, nptrs);

    if (strings != NULL) {
        for (int j = 0; j < nptrs; j ++) 
            LOG(INFO) << strings[j] << endl;
    }   
    LOG(INFO) << "PrintTrace" << endl;
    free(strings);
}