LINUX动态链接器的判断及其相关信息

[root@localhost lib]# readelf -l librt.so.1

Elf file type is DYN (Shared object file)
Entry point 0x1880
There are 9 program headers, starting at offset 52

Program Headers:
  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
  PHDR           0x000034 0x00000034 0x00000034 0x00120 0x00120 R E 0x4
  INTERP         0x005c6c 0x00005c6c 0x00005c6c 0x00013 0x00013 R   0x1
      [Requesting program interpreter: /lib/ld-linux.so.2]
  LOAD           0x000000 0x00000000 0x00000000 0x0648c 0x0648c R E 0x1000
  LOAD           0x006ebc 0x00007ebc 0x00007ebc 0x0028c 0x00370 RW  0x1000
  DYNAMIC        0x006edc 0x00007edc 0x00007edc 0x000f8 0x000f8 RW  0x4
  NOTE           0x000154 0x00000154 0x00000154 0x00020 0x00020 R   0x4
  GNU_EH_FRAME   0x005c80 0x00005c80 0x00005c80 0x00074 0x00074 R   0x4
  GNU_STACK      0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x4
  GNU_RELRO      0x006ebc 0x00007ebc 0x00007ebc 0x00144 0x00144 R   0x1

 Section to Segment mapping:
  Segment Sections...
   00    
   01     .interp
   02     .note.ABI-tag .gnu.hash .dynsym .dynstr .gnu.version .gnu.version_d .gnu.version_r .rel.dyn .rel.plt .init .plt .text __libc_freeres_fn .fini .rodata .interp .eh_frame_hdr .eh_frame .gcc_except_table .hash
   03     .ctors .dtors .jcr __libc_subfreeres .data.rel.ro .dynamic .got .got.plt .data .bss
   04     .dynamic
   05     .note.ABI-tag
   06     .eh_frame_hdr
   07    
   08     .ctors .dtors .jcr __libc_subfreeres .data.rel.ro .dynamic .got

[root@localhost lib]# ll ld-linux.so.2
lrwxrwxrwx 1 root root 9 Sep  5 21:54 ld-linux.so.2 -> ld-2.5.so
[root@localhost lib]#

 

上面是CentOS5.3版本下的查询所得信息。