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Re: [avr-gcc-list] dwarf call frame information ( gcc 3.4.0 20040211)


From: Erik Christiansen
Subject: Re: [avr-gcc-list] dwarf call frame information ( gcc 3.4.0 20040211)
Date: Fri, 26 Mar 2004 14:33:34 +1100
User-agent: Mutt/1.3.28i

On Thu, Mar 25, 2004 at 12:50:16PM +0100, Torleif Sandnes wrote:
> >Does the tweak, or gcc/config/avr/avr.h improve the situation?
> 
> No, I still cannot get gcc to produce .debug_frame sections

Just to confirm some basics, I built a native gcc-3.3 with dwarf2, and
compiled trivial example code, using -gdwarf-2. Amongst the 29 sections,
.debug_frame appears:

 23 .debug_aranges 00000020  00000000  00000000  000005f1  2**0
                  CONTENTS, READONLY, DEBUGGING
 24 .debug_pubnames 0000001b  00000000  00000000  00000611  2**0
                  CONTENTS, READONLY, DEBUGGING
 25 .debug_info   000014f5  00000000  00000000  0000062c  2**0
                  CONTENTS, READONLY, DEBUGGING
 26 .debug_abbrev 0000019b  00000000  00000000  00001b21  2**0
                  CONTENTS, READONLY, DEBUGGING
 27 .debug_line   0000030b  00000000  00000000  00001cbc  2**0
                  CONTENTS, READONLY, DEBUGGING
 28 .debug_frame  0000002c  00000000  00000000  00001fc8  2**2
                  CONTENTS, READONLY, DEBUGGING
 29 .debug_str    00000cec  00000000  00000000  00001ff4  2**0
                  CONTENTS, READONLY, DEBUGGING

Knowing that there is no general gcc problem, next step is to repeat
with --target=avr. (I'll have to grub around a bit for a simple avr-gcc
C example though, since my first avr foray is pure (macro) assembler.)

Here's hoping it's not simply unimplemented in the avr-gcc port. :)

Erik

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