日記/2009-07-23/祭りの続き

祭りの続き †

MIPS でもやってみた． やっぱり同様の最適化処理はされるようだ．

$ mipsel-linux-gnu-gcc --version
mipsel-linux-gnu-gcc (Debian 4.4.0-10) 4.4.0
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ mipsel-linux-gnu-gcc -O2 -c exploit.c 
$ mipsel-linux-gnu-objdump -d exploit.o 

exploit.o:     file format elf32-tradlittlemips


Disassembly of section .text:

00000000 <foo>:
   0:	8c820004 	lw	v0,4(a0)
   4:	03e00008 	jr	ra
   8:	00000000 	nop
   c:	00000000 	nop