查看so文件,readelf_PHP教程

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

[php]

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

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