英文:
GDB: File not found/required file not found
问题
我知道这个话题已经被问过，但我已经按照每个人的步骤进行了尝试，但似乎都不起作用。
我目前正在尝试理解一个可执行文件的功能，但我没有源代码。这意味着我无法控制它的编译等。它是一个ELF 64位LSB pie可执行文件，ARM aarch64文件。
为了做到这一点，我回想起了我的计算机体系结构课程，在那里我们学习了如何使用gdb来逐步执行程序。我目前正在尝试使用这个工具，但当我尝试在gdb调试器中运行时，我遇到了一个奇怪的错误，大致如下：
/bin/bash: line 1: /home/ec2-user/filename: 无法执行：找不到所需的文件
我说“大致如下”，因为我在Ubuntu22实例和Amazon Linux实例中都尝试过这个操作。两者都返回相同类型的错误。我进行了一些基本的测试：
gdb thisfiledoesnotexist
gdb明确告诉我，一旦进入调试器，文件就不存在，而对于filename，只有当我尝试运行时才会声明它不存在。我可以设置断点，以及在没有帧或运行程序的情况下可以做的有限的事情。
需要注意的一些事项：
- 文件位于~/目录下。
- 我在~/目录中运行了gdb。
- 我在调试器中运行了
dir /home/ec2-user。 - 我进行了“正常”的安装，只使用sudo yum/apt install命令。
我对一个bash本机的date文件进行了测试，它确实可以工作，所以不是gdb的问题。
这让我相信以下几种可能性之一：
- 这个可执行文件与gdb不兼容，但与lldb也不兼容。
- 我没有正确配置gdb。
- 我在bin/bash中缺少允许此可执行文件运行的某些内容。
任何帮助将不胜感激！
英文:
I'm aware this topic has been asked, but I have followed the steps of each, and none seem to work.
I am currently attempting to understand the functionality of an executable in which I was not given source code for. This means I had no control over the compilation of it, etc. It is a ELF 64-bit LSB pie executable, ARM aarch64 file.
To do so, I thought back to my computer architecture course, where we learned how to step through a program using gdb. I am currently attempting to use this, but I am running into a strange error, something along the lines of this when I attempt to run within the gdb debugger:
/bin/bash: line 1: /home/ec2-user/filename: cannot execute: required file not found
I say "something along the lines of" because I have tried this in both an Ubuntu22 instance as well as an Amazon Linux instance. Both return their same flavors of the error above. I sanity tested with
gdb thisfiledoesnotexist
And gdb explicitly told me that the file did not exist immediately upon entering the debugger, whereas with filename, it only stated it when I attempted to run. I could set breakpoints and do what limited things you can do without a frame or a running program.
A few things to note:
- I have the file at ~/
- I ran gdb in the ~/ directory
- I ran
dir /home/ec2-userwithin the debugger - I did a "normal" install, so just sudo yum/apt install
I tested on a bash-native date file, which did indeed work, so it's not that gdb is the issue.
This leads me to believe one of a few things:
- This executable doesn't play well with gdb, but it also didn't work with lldb
- I'm failing to configure gdb correctly.
- I am missing something in bin/bash to allow this executable to run
Any help would really be appreciated!
答案1
得分: 3
"ELF 64位LSB可执行文件，ARM aarch64，版本1（SYSV），动态链接，解释器/system/bin/linker64，"
问题（很可能）是你的系统上不存在/system/bin/linker64。
这可能是一个Android二进制文件（使用Bionic libc），而你正在尝试在“常规”Linux上运行它。
搜索“在Linux上运行Android应用程序”提供了许多可能的答案，尽管我不确定哪一个在这里最合适。
英文:
> ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /system/bin/linker64,
The problem (most likely) is that /system/bin/linker64 does not exist on your system.
This is possibly an Android binary (using Bionic libc), and you are trying to run it on a "regular" Linux.
Searching for "run android app on linux" provides many possible answers, though I am not sure which one is most appropriate here.
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