在Linux下如何在程序中获得当前调用栈信息

主要使用backtrace和backtrace_symbols两个函数。

#include
#include
using namespace std;

 //返回当前堆栈调用列表

string print_trace(int fd, int filter_first_lines)
{
    void *array[MAX_STACK_LAYERS];
    size_t size;
    char **strings;
    size_t i;
    string strRet("");

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

    for (i = 0; i < size; i++)
    {
        if(i < filter_first_lines)
            continue;
        if(fd > 0)
        {
            write(fd, strings[i], strlen(strings[i]));
            write(fd, "\n", 1);
        }
        strRet.append(strings[i]);
        if(i < size-1)
            strRet.append(1, '\n');
    }
    if(fd > 0)
        write(fd, "\n", 1);

    free (strings);
    return strRet;
}

一个示例输出结果是：
/opt/ibm/lotus801/lotus/notes/80010/linux/iwagent(_Z11print_tracei+0x5c) [0x81798e4]
/opt/ibm/lotus801/lotus/notes/80010/linux/iwagent(_ZN10MemTracker16RetriveCallStackEiRSs+0x2d) [0x8179ab5]
/opt/ibm/lotus801/lotus/notes/80010/linux/iwagent(_ZN10MemTracker9AddRecordEjPvi+0xc1) [0x817a9b7]
/opt/ibm/lotus801/lotus/notes/80010/linux/iwagent(_Znwj+0x5b) [0x817b02d]
/opt/ibm/lotus801/lotus/notes/80010/linux/iwagent(_Z19IWCreateNotesThreadP17IWNotesThreadInfo+0x5b) [0x80bfc63]
/opt/ibm/lotus801/lotus/notes/80010/linux/iwagent(_Z11IWNotesMainR14LNNotesSessioniPPc+0x525) [0x81624af]
/opt/ibm/lotus801/lotus/notes/80010/linux/iwagent(_Z6iwmainiPPc13iwmain_errors+0x83) [0x8162a01]
/opt/ibm/lotus801/lotus/notes/80010/linux/iwagent(main+0x41) [0x8162b79]
/lib/libc.so.6(__libc_start_main+0xdc) [0x2e5e9c]
/opt/ibm/lotus801/lotus/notes/80010/linux/iwagent [0x806c7c1]

相关链接：
《返璞归真--UNIX技术内幕》
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