- readelf：Linux 下专门针对 ELF 文件格式的解析器；
0. 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
