Linux 工具套件 —— binutils、readelf

• readelf：Linux 下专门针对 ELF 文件格式的解析器；

0. binutils

GNU Binutils

• gnu binutils 一套二进制工具的集合，主要包含：ld（gnu linker）、as（gnu assembler），此外还包括：
  • addr2line：Converts addresses into filenames and line numbers.
  • ar：A utility for creating, modifying and extracting from archives.
  • c++filt：Filter to demangle encoded C++ symbols.
  • dlltool：A new, faster, ELF only linker, still in beta test.
  • gold：A new, faster, ELF only linker, still in beta test.
  • gprof：Displays profiling information.
  • nlmconv：Converts object code into an NLM.
  • nm：Lists symbols from object files.
  • objcopy：Copies and translates object files.
  • objdump：Displays information from object files.
  • ranlib：Generates an index to the contents of an archive.
  • readelf：Displays information from any ELF format object file.
  • size：Lists printable strings from files.
  • strip：Discards symbols.
  • windmc：A Windows compatible（兼容的） message compiler.
  • windres：A compiler for Windows resource files.

1. objdump

• objdump：顾名思义，查看显示 obj（目标文件）的内部结构；

  $ gcc -c hello.c
      # -c 表示只编译不链接；
  $ objdump -h hello.o