致命错误（11）尝试在emacs中进入gdb模式时，分段错误有什么问题？ [英] Fatal error (11)Segmentation fault when trying to enter gdb mode in emacs, what's wrong?

问题描述

以下分段故障是什么意思？

 致命错误（11）细分错误
  

什么是细分错误，什么可能导致它发生？

一旦我输入了这个问题， Mx gdb 到Emacs，

输入显示在这个图片，输出显示为

[a]：我从源码构建emacs 24.1 on centos 5.3，此构建无法进入gdb模式

[b]：我也构建emacs 24.1 on debian 5.0，它可以使用gdb模式无错误

所以我真的不知道发生了什么，我不能使用gdb模式在emacs 24.1在centos 5.3 :(

解决方案

要调试Emacs，如果您自己构建，请转到项目ctory，然后做：

  $ gdb ./src/emacs 
 $（gdb）设置日志文件〜/ emacs -errors.log 
 $（gdb）r -q 
< ...到达发生错误的地方...> 
 $（gdb）bt full 
  

然后，当您发送错误报告时，请使用〜/ emacs-errors.log文件（gdb将打印所有错误）。

另请注意，编译时需要配置它来保留调试信息它。为此，

  $ CFLAGS =' -  O0 -ggdb -g3'./configure --enable-checking --enable -asserts 
  

然后重新编译。

What does the following segmentation fault mean?

Fatal error (11)Segmentation fault

What is a segmentation fault, and what can cause it to happen?

The issue arrises once I type, Mx gdb into Emacs,

The inputs are shown in this picture the output is shown here.

more details:

[a]: i build emacs 24.1 on centos 5.3 from source, this build cannot enter gdb mode

[b]: also i build emacs 24.1 on debian 5.0, it can use gdb mode without error

so i really don't know what happened that i cannot use gdb mode in emacs 24.1 on centos 5.3:(

解决方案

To debug Emacs, if you built it yourself, change to the project directory, then do:

$ gdb ./src/emacs
$ (gdb) set logging file ~/emacs-errors.log
$ (gdb) r -q
<... get to the point where error happens ...>
$ (gdb) bt full

Then, when you send the bug report, use the ~/emacs-errors.log file (gdb will print all errors into it).

Also note that you will need to configure it to preserve the debug information when you compile it. To do that,

$ CFLAGS='-O0 -ggdb -g3' ./configure --enable-checking --enable-asserts

and then recompile.

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