查看so文件,readelf

有时候需要查看so文件,

linux下直接readelf -a xxx.so 显示elf格式的信息,通过参数来控制显示特定信息

readelf -d filename.so 查看共享库的以来库 和搜索名字

readelf -h filename.so 显示elf头信息

rainysia@root:/usr/lib/php5/20090626# readelf -a  odbc.so | more
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:                              DYN (Shared object file)
  Machine:                           Advanced Micro Devices X86-64
  Version:                           0x1
  Entry point address:               0x4940
  Start of program headers:          64 (bytes into file)
  Start of section headers:          65976 (bytes into file)
  Flags:                             0x0
  Size of this header:               64 (bytes)
  Size of program headers:           56 (bytes)
  Number of program headers:         7
  Size of section headers:           64 (bytes)
  Number of section headers:         27
  Section header string table index: 26

Section Headers:
  [Nr] Name              Type             Address           Offset