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我正在尝试使用gaddr2line打印更漂亮的回溯符号版本。我只是backtrace()通过gaddr2line使用popen. 在 linux 下使用addr2line可以正常工作,但由于某种原因,我gaddr2line在 OS X 上使用时遇到奇怪的错误。在 Mac OS 上尝试这个时,我不断收到BFD: ... : unknown load command ... 一些帖子提到 GDB,所以我尝试用自制软件安装它,但那没有没有帮助。

这是我的代码:

    // set to the maximum possible path size
    char exe_path[4096];

    // Used to check if an error occured while setting up command
    bool error = false;

    // Check if we are running on Mac OS or not, and select appropriate command
    char* command;
    #ifdef __APPLE__
        // Check if 'gaddr2line' function is available, if not exit
        if( !system( "which gaddr2line > /dev/null 2>&1" ) ) {
            command = "gaddr2line -Cfspe";
            pid_t pid = getpid();
            int path_length = proc_pidpath( pid, exe_path, sizeof( exe_path ) );
            if( path_length <= 0 ) {
                writeLog( SIMPLOG_LOGGER, "Unable to get execution path. Defaulting to standard backtrace." );
                error = true;
            }
            exe_path[path_length] = 0;
        } else {
            writeLog( SIMPLOG_LOGGER, "Function 'gaddr2line' unavailable. Defaulting to standard backtrace. Please install package 'binutils' for better stacktrace output." );
            error = true;
        }
    #endif

这是输出:

gaddr2line -Cfspe /Users/nate/git/SimpleLogger/build/test 7408927
BFD: /Users/nate/git/SimpleLogger/build/test: unknown load command 0x2a
BFD: /Users/nate/git/SimpleLogger/build/test: unknown load command 0x28
BFD: /Users/nate/git/SimpleLogger/build/test: unknown load command 0x29
BFD: /Users/nate/git/SimpleLogger/build/test: unknown load command 0x2b
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