zoukankan      html  css  js  c++  java
  • gdb调试libtool封装的可执行文件

    http://www.gnu.org/software/libtool/manual/html_node/Debugging-executables.html

    3.4 Debugging executables

    Ifhellwas a complicated program, you would certainly want to test and debug it before installing it on your system. In the above section, you saw how the libtool wrapper script makes it possible to run the program directly, but unfortunately, this mechanism interferes with the debugger:

         burger$ gdb hell
         GDB is free software and you are welcome to distribute copies of it
          under certain conditions; type "show copying" to see the conditions.
         There is no warranty for GDB; type "show warranty" for details.
         GDB 4.16 (i386-unknown-netbsd), (C) 1996 Free Software Foundation, Inc.
         
         "hell": not in executable format: File format not recognized
         
         (gdb) quit
         burger$
    

    Sad. It doesn't work because GDB doesn't know where the executable lives. So, let's try again, by invoking GDB directly on the executable:

         burger$ gdb .libs/hell
         GNU gdb 5.3 (i386-unknown-netbsd)
         Copyright 2002 Free Software Foundation, Inc.
         GDB is free software, covered by the GNU General Public License,
         and you are welcome to change it and/or distribute copies of it
         under certain conditions.  Type "show copying" to see the conditions.
         There is no warranty for GDB.  Type "show warranty" for details.
         (gdb) break main
         Breakpoint 1 at 0x8048547: file main.c, line 29.
         (gdb) run
         Starting program: /home/src/libtool/demo/.libs/hell
         /home/src/libtool/demo/.libs/hell: can't load library 'libhello.so.0'
         
         Program exited with code 020.
         (gdb) quit
         burger$
    

    Argh. Now GDB complains because it cannot find the shared library thathellis linked against. So, we must use libtool in order to properly set the library path and run the debugger. Fortunately, we can forget all about the.libsdirectory, and just run it on the executable wrapper (see Execute mode):

         burger$ libtool --mode=execute gdb hell
         GNU gdb 5.3 (i386-unknown-netbsd)
         Copyright 2002 Free Software Foundation, Inc.
         GDB is free software, covered by the GNU General Public License,
         and you are welcome to change it and/or distribute copies of it
         under certain conditions.  Type "show copying" to see the conditions.
         There is no warranty for GDB.  Type "show warranty" for details.
         (gdb) break main
         Breakpoint 1 at 0x8048547: file main.c, line 29.
         (gdb) run
         Starting program: /home/src/libtool/demo/.libs/hell
         
         Breakpoint 1, main (argc=1, argv=0xbffffc40) at main.c:29
         29        printf ("Welcome to GNU Hell!
    ");
         (gdb) quit
         The program is running.  Quit anyway (and kill it)? (y or n) y
         burger$
    
  • 相关阅读:
    Qt-网易云音乐界面实现-4 实现推荐列表和我的音乐列表,重要在QListWidget美化
    Qt-网易云音乐界面实现-3 音乐名片模块的实现
    Qt-网易云音乐界面实现-2 红红的程序运行图标,和相似下方音乐条
    Qt-网易云音乐界面实现-1 窗口隐藏拖拽移动,自定义标题栏
    Qt 利用XML文档,写一个程序集合 四
    promise的简单理解
    toast弹框组件的封装-插件方式
    vuex自动获取当前的时间
    用vue对tabbar的封装
    子组件与父组件的各种传递关系
  • 原文地址:https://www.cnblogs.com/ericsun/p/3168842.html
Copyright © 2011-2022 走看看