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Re: Query regarding assembly level debugging support
- From: Daniel Jacobowitz <drow at false dot org>
- To: Tarun <tarun at acmet dot com>
- Cc: 'Peter Barada' <peter at the-baradas dot com>, gdb at sources dot redhat dot com,acmet at vsnl dot net, ranjeeta at acmet dot com, rm_nair at acmet dot com
- Date: Wed, 8 Dec 2004 08:57:04 -0500
- Subject: Re: Query regarding assembly level debugging support
- References: <20041202141029.D5DDD9842C@baradas.org> <000a01c4dcf3$d9bf19c0$a100a8c0@u8test4>
On Wed, Dec 08, 2004 at 12:32:12PM +0530, Tarun wrote:
> Thanks for the information. But my query still remains "Can we step
> through assembly code?"
> I know GDB supports assembly-level debugging but that refers to inline
> assembly. To make the point clear, please look at snip below. For the
> sample code segment:
> <snip>
> /* Print the top of the stack if no index is specified. */
> if (which < 0)
> {
> which = stack->top - 1;
> if (which < 0)
> <snip>
>
> The inline assembly is (assume) represented as:
> <snip>
> /* Print the top of the stack if no index is specified. */
> if (which < 0)
> .frame $fp,16,$31 <-
> .mask 0x40000000,-8 <-
> .fmask 0x00000000,0 <-
> subu $sp,$sp,16 <-
> {
> which = stack->top - 1;
> li $2,20 <-
> sw $2,0($fp) <-
> if (which < 0)
> <snip>
>
>
> Does GDB refer to stepping through the above code as assembly-level
> debugging?
No.
> If yes, then my requirement is little different. I want to debug the
> assembly code itself keeping it as the source code (and not the C
> source). To be more specific I want to debug hand written assembly code
> (and not the one generated by compiler)
Please see my earlier response:
Are you saying that your source code is assembly, and your assembler
creates debug information for it? This should work in GDB; make sure
that the .debug_line information is correct.
--
Daniel Jacobowitz