windows 可以读取目标文件吗？
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It is possible to read an object file?
提问by Leandro
I was curious about .objfiles: I pretty much don't know what they are (or what they contain), so I opened them with Vim text editor and what I found inside was an Alien like language...
我对.obj文件很好奇：我几乎不知道它们是什么（或它们包含什么），所以我用 Vim 文本编辑器打开它们，我发现里面是一种类似 Alien 的语言......
Is there any way to understand what they represent and what is their content Also, for what are they being used ?
有什么方法可以理解它们代表什么以及它们的内容是什么另外，它们的用途是什么？
Thanks.
谢谢。
回答by paulsm4
Sure.
当然。
But every different platform has a different object format. On Windows, you could use a tool like dumpbin(dumpbin comes with Visual Studio). On Linux, you could use "dumpobj", or disassemble the program.
但是每个不同的平台都有不同的对象格式。在 Windows 上，您可以使用像dumpbin这样的工具（dumpbin 随 Visual Studio 一起提供）。在 Linux 上，您可以使用“dumpobj”，或反汇编程序。
Here's a good link for Linux:
这是一个很好的 Linux 链接：
http://www.linuxjournal.com/article/1060
http://www.linuxjournal.com/article/1060
PS: objdump also lets you disassemble the object. Like you used to be able to do with "debug" on DOS PCs...
PS：objdump 还可以让你反汇编对象。就像您过去能够在 DOS PC 上进行“调试”一样……
回答by Abyx
回答by sarnold
The readelftool is good at showing you somedetails on the data:
该readelf工具擅长向您展示数据的一些细节：
$ readelf -a /usr/bin/readelf
ELF Header:
Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00
Class: ELF64
Data: 2's complement, little endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: EXEC (Executable file)
Machine: Advanced Micro Devices X86-64
...
Some of its abilities to inspect specific sections of the executable can come in handy too:
它检查可执行文件特定部分的一些功能也可以派上用场：
$ readelf -p .rodata /usr/bin/readelf | more
String dump of section '.rodata':
[ 4] R_IA64_IMM14
[ 11] R_IA64_NONE
...
[ 1f58] Personality routine:
[ 1f70] __gcc_personality_v0
[ 1f85] __gxx_personality_v0
[ 1f9a] __gcj_personality_v0
[ 1faf] __gnu_objc_personality_v0
...
Actually disassembling the code is a bit of a stretch; if you compile your code with -gfor debugging symbols, you can use readelf --debug-dumpto read the program source, type information, etc.
实际上反汇编代码有点费劲；如果你用-g调试符号编译你的代码，你可以readelf --debug-dump用来读取程序源、类型信息等。
