C语言 适用于 Mac OS X 的类似 readelf 的工具？
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readelf-like tool for Mac OS X?
提问by karlphillip
Is there a tool for reading Mac OS X binaries that would print information about relocation tables and symbol offsets similar to this readelfoutput?
是否有用于读取 Mac OS X 二进制文件的工具，该工具会打印与此readelf输出类似的重定位表和符号偏移量的信息？
readelf -r app
Relocation section '.rel.dyn' at offset 0x5ec contains 2 entries:
Offset Info Type Sym.Value Sym. Name
08049d58 00001706 R_386_GLOB_DAT 00000000 __gmon_start__
08049d60 00000305 R_386_COPY 08049d60 _ZSt4cout
Relocation section '.rel.plt' at offset 0x5fc contains 13 entries:
Offset Info Type Sym.Value Sym. Name
08049d24 00000107 R_386_JUMP_SLOT 0804868c print
08049d28 00000207 R_386_JUMP_SLOT 0804869c _ZNSt8ios_base4InitC1E
08049d2c 00000507 R_386_JUMP_SLOT 080486ac _ZStlsISt11char_traits
08049d30 00000607 R_386_JUMP_SLOT 080486bc _ZNSolsEPFRSoS_E
08049d34 00000707 R_386_JUMP_SLOT 08048664 _init
08049d38 00000807 R_386_JUMP_SLOT 080486dc sleep
08049d3c 00000907 R_386_JUMP_SLOT 080486ec _ZNKSsixEj
08049d40 00000b07 R_386_JUMP_SLOT 080486fc _ZNKSs4sizeEv
08049d44 00000c07 R_386_JUMP_SLOT 0804870c __libc_start_main
08049d48 00000d07 R_386_JUMP_SLOT 08048ae4 _fini
08049d4c 00001307 R_386_JUMP_SLOT 0804872c _ZSt4endlIcSt11char_tr
08049d50 00001507 R_386_JUMP_SLOT 0804873c __gxx_personality_v0
08049d54 00001607 R_386_JUMP_SLOT 0804874c _ZNSt8ios_base4InitD1E
In this example, printis a function loaded from a shared library (I wrote) at runtime. readelfis able to display information about its location inside the appbinary.
在这个例子中，print是一个在运行时从共享库（我写的）加载的函数。 readelf能够显示有关其在app二进制文件中的位置的信息。
回答by cbehanna
Using Macports:
使用Macports：
- Install macports.
- Using macports
port install binutils gobjdump -p /path/to/app
- 安装 macports。
- 使用 macport
port install binutils gobjdump -p /path/to/app
Using Homebrew:
使用自制软件：
- Install Homebrew
- Do
brew update && brew install binutils /usr/local/path/to/gobjdump -p /path/to/app# or follow instructions to add it to your PATH
- 安装 Homebrew
- 做
brew update && brew install binutils /usr/local/path/to/gobjdump -p /path/to/app# 或按照说明将其添加到您的 PATH
There are, of course, many other command-line options. Note that the binutils port cautions that installing it may cause other ports to fail to build. Having it around to port install/look at something/port uninstall can still be handy.
当然，还有许多其他命令行选项。注意 binutils 端口提示安装它可能会导致其他端口无法构建。使用它进行端口安装/查看某些内容/端口卸载仍然很方便。
It's rather amazing that there isn't already some native tool to do this.
令人惊讶的是，还没有一些本地工具可以做到这一点。
回答by ergosys
otool -l test.o
otool -l test.o
回答by Jichao
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew install binutils
greadelf filepath
- install homebrew.
- use homebrew to install binutils
- the readelf in binutils is called
greadelf.
- 安装自制软件。
- 使用 homebrew 安装 binutils
- binutils 中的 readelf 被称为
greadelf.
回答by carlfilips
Have you tried ObjConv? http://agner.org/optimize/#objconv
你试过 ObjConv 吗？http://agner.org/optimize/#objconv
This utility can be used for converting object files between COFF/PE, OMF, ELF and Mach-O (used by Mac OS) formats for all 32-bit and 64-bit x86 platforms. Can modify symbol names in object files. Can build, modify and convert function libraries across platforms. Can dump object files and executable files. Also includes a very good disassembler supporting the SSE4, AVX, FMA and XOP instruction sets.
此实用程序可用于在所有 32 位和 64 位 x86 平台的 COFF/PE、OMF、ELF 和 Mach-O（由 Mac OS 使用）格式之间转换目标文件。可以修改目标文件中的符号名称。可以跨平台构建、修改和转换函数库。可以转储目标文件和可执行文件。还包括一个非常好的反汇编器，支持 SSE4、AVX、FMA 和 XOP 指令集。
Ps.: The source code is included (GPL).
Ps.：包含源代码（GPL）。
