readelf and objdump

andyzn · 12-06-2007, 04:58 AM

andyzn@Kernel:~/ttt/asm$ objdump -s -j .dtors test

test: file format elf32-i386

Contents of section .dtors:
8049488 ffffffff 00000000 ........
~~~~~~~~~~~~~~~~~~~~
This is different from below. why?

andyzn@Kernel:~/ttt/asm$ readelf -x 18 test

Hex dump of section '.dtors':
0x08049488 00000000 ffffffff ........
~~~~~~~~~~~~~~~~~~~~ Here

andyzn · 12-06-2007, 05:08 AM

It is clear now.

"test" is a helloworld program.

Now I add a destructor and then everything is clear

We can see readelf print byte by byte from high to low

but objdump from low to high.

andyzn@Kernel:~/ttt/asm$ readelf -x 18 test
Hex dump of section '.dtors':
0x08049508 00000000 080483f3 ffffffff ............

andyzn@Kernel:~/ttt/asm$ objdump -s -j .dtors test
test: file format elf32-i386
Contents of section .dtors:
8049508 ffffffff f3830408 00000000 ............