Re: asm debugger for linux?

Andrew Morton (andrewm@uow.edu.au)
Tue, 30 Mar 1999 00:42:46 +1000

Brian Gerst wrote:
>
> Siddharth Srivastava wrote:
> >
> > are there any asm debuggers avaliable for linux??
> > i need it badly for some code optimization
>
> Three possibilities:
> 1) gcc -S file.c (creates file.s)
> 2) gdb
> 3) objdump --disassemble

4) mix!

A little toy I wrote when I was doing a gcc port many moons ago. It
still seems to work.

You compile something with 'gcc -S -g foo.c' then run 'mix foo.s' and it
spits out a nice mixture of the C and assembly.

main()
{
p1();
p2(2);
p3("s");
}

gives

;0002 foo.c
;0002 {
.LM1:
pushl %ebp
movl %esp,%ebp
;0003 p1();
.LM2:
.LBB2:
call p1
;0004 p2(2);
.LM3:
pushl $2
call p2
addl $4,%esp
;0005 p3("s");
.LM4:
pushl $.LC0
call p3
addl $4,%esp
;0006 }

it's at http://www.uow.edu.au/~andrewm/mix.c

-- 
--------------
Andrew Morton
   mailto:andrewm@uow.edu.au
      http://www.uow.edu.au/~andrewm


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