大侠帮忙！模块调试（非内核模块）

myjesky

我在调试apache的一个模块daytime，apache和daytime都用-g编译的，而且用gdb调试
apache是没有问题的，daytime也可以正常运行，但是按照下面步骤调试daytime却不行?为
什么

gdb mod_daytime.so
（略）
(gdb) attach 11942
Attaching to program: /usr/local/apache/modules/mod_daytime.so, process 11942
0x00755402 in ?? ()
(gdb) b process_daytime_connection （daytime中的一个函数）
Breakpoint 1 at 0x788: file mod_daytime.c, line 106.
(gdb) c
Continuing.
Warning:
Cannot insert breakpoint 1.
Error accessing memory address 0x788: Input/output error.

myjesky

原来不是这么调试的，用google搜不到，用yahoo却搜到了
Examples of debugging targets like this are:

Loading modules
Interprocess communication
Resource management
To debug like this:

1. Compile Apache with debugging enabled.
2. Use ps (or its equivalent) to get the process ID of a running HTTPD.
3. Invoke gdb with the command line % gdb httpd.
4. Once in gdb, attach to the running process with "(gdb) attach pid" where pid is the process ID from step 2.