about elf - xieyunzi/xieyunzi.github.io GitHub Wiki
elf header:
[xz@centos]~# hexdump -C -n 64 /bin/ls
00000000 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00 |.ELF............|
00000010 02 00 3e 00 01 00 00 00 c4 43 40 00 00 00 00 00 |..>......C@.....|
00000020 40 00 00 00 00 00 00 00 28 c4 01 00 00 00 00 00 |@.......(.......|
00000030 00 00 00 00 40 00 38 00 09 00 40 00 1e 00 1d 00 |[email protected]...@.....|
00000040
[xz@centos]~# readelf -h /bin/ls
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: EXEC (Executable file)
Machine: Advanced Micro Devices X86-64
Version: 0x1
Entry point address: 0x4043c4
Start of program headers: 64 (bytes into file)
Start of section headers: 115752 (bytes into file)
Flags: 0x0
Size of this header: 64 (bytes)
Size of program headers: 56 (bytes)
Number of program headers: 9
Size of section headers: 64 (bytes)
Number of section headers: 30
Section header string table index: 29
how programs get run
references: