gdb在启动过程中，用代码127退出 [英] gdb During startup program exited with code 127

问题描述

希望在Linux Debian中使用gdb作为调试器。试图运行一个二进制文件我得到这个：

 （gdb）r 
启动程序：/ usr / local / sbin / test 
 / bin / bash：/ usr / local / sbin / test：没有这样的文件或目录
启动程序在代码127中退出。
（gdb）
  

我想这应该是初级的。但我搜索了很多，最常见的答案是：
$ b $

  $ export SHELL = / bin / bash 
  

这没有帮助。我也尝试更改PATH以执行二进制文件，尝试从不同的目录运行...仍然是相同的。





请帮助我吗？

解决方案


/ bin / bash：/ usr / local / sbin /测试：没有这样的文件或目录

有两种常见原因：

1. 文件 / usr / local / sbin / test 不存在


2. 该文件确实存在，是一个动态链接的可执行文件，它指定的ELF解释程序不存在。
   

对于＃1，答案显而易见：您需要一个文件来进行调试。

对于＃2，您可以找出文件需要的ELF解释器： p>

  readelf -l / usr / local / sbin / test | grep解释器
  

您可能有一个指向 / lib /在没有安装32位运行时支持的64位系统上使用ld-linux.so.2 。根据您使用的发行版本，像 sudo apt-get install libc6：i386 应该有所斩获。

Wanted to use gdb as a debugger in Linux Debian. Trying to run a binary I get this:

(gdb) r
Starting program: /usr/local/sbin/test 
/bin/bash: /usr/local/sbin/test: No such file or directory
During startup program exited with code 127.
(gdb) 

I guess it's supposed to be elementary. But I googled a lot and most common answer is

$ export SHELL=/bin/bash

This doesn't help. I also tried to change PATH for binaries execution, tried to run from different directory... Still the same.

Could you please help me with that?

解决方案

/bin/bash: /usr/local/sbin/test: No such file or directory

There are two common causes of this:

1. the file /usr/local/sbin/test doesn't exist
2. the file does exist, is a dynamically linked executable, and the ELF interpreter that it specifies does not exist.

For #1, the answer is obvious: you need a file to debug.

For #2, you can find out which ELF interpreter the file requires like so:

readelf -l /usr/local/sbin/test | grep interpreter

You likely have a 32-bit binary pointing to /lib/ld-linux.so.2 on a 64-bit system without 32-bit runtime support installed. Depending on the distribution you are using, something like sudo apt-get install libc6:i386 should do the trick.

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