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From: Anitha Boyapati <anitha.boyapati@gmail.com>
Date: Tue, 15 Feb 2011 19:15:00 -0000
Message-ID: <AANLkTikXt7hytomX+OPCP43deNL1k5N3Dum9tGyp7mpM@mail.gmail.com>
Subject: Re: Testing Call frame information in .debug_frame section
To: Richard Henderson <rth@redhat.com>
Cc: gdb@sourceware.org, binutils@sourceware.org
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On 16 February 2011 00:18, Richard Henderson <rth@redhat.com> wrote:
> On 02/15/2011 10:09 AM, Anitha Boyapati wrote:
>> I am a little confused here. I was under the impression that changes
>> to GCC files alone would suffice. I am missing something here. Are the
>> above mentioned changes required for assembling CFI information in
>> assembly files in binutils?
>
> GCC *can* produce cfi information by itself without assembler help,
> but can produce slightly more compact cfi information *with* help.
> In addition, with assembler support it's easy to write cfi info to
> go along with hand-written assembly.

Ok.  I was skimming through binutils ml archives for more info.

Basically I have implemented CFI emission in AVR-GCC
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17994

I have no idea that somewhat similar changes are required in binutils
too. Upon that the manual examination of output appeared correct. I am
using binutils 2.20.1. Will see what happens on supporting the above
macros. I wish there is some kind of updated  binutils internals
document like that of GCC's for some references.


Thanks Richard!


Anitha.