[U-Boot-Users] [PATCH 1/6] AVR32: Use -g instead of -gstabs in AFLAGS_DEBUG

[Haavard Skinnemoen]

On 10/25/06, Wolfgang Denk <wd at denx.de> wrote:
> In message <20061025144151.7039c0e5 at cad-250-152.norway.atmel.com> you wrote:
> > Right. The 2.15 documentation doesn't seem to mention the -g option,
> > only -g<debug format>.
>
> Ummm...
>
> This file is a user guide to the GNU assembler `as' version
> 2.15.94.0.2.2.

2.15.94 is actually closer to 2.16 than 2.15...

If you look at the as.texinfo file tagged as binutils_2_15, the -g
option is only documented for certain targets, e.g. Alpha and MIPS:

http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/doc/as.texinfo?rev=1.96&content-type=text/x-cvsweb-markup&cvsroot=src&only_with_tag=binutils-2_15

> > Wolfgang, please consider applying the patch below to fix this problem.
>
> I do, but I'd like to understand the problem first. Matthew's example
> looked to me as if the gcc driver was calling "as" as a result  of  a
> "gcc -g" command, and this should IMHO always work.

Yes, "gcc -g" should always work. However, in Matthew's example, the
command line also included "-Wa,-g", which injects the -g option
directly into the command line for the assembler, and that seems to
work only for 2.16 and later (or maybe not even that in case of ARM.)

I wonder if gcc will automatically pass the correct -g<whatever>
option to gas when it's given the -g option? If that's the case, I
suppose we could simply remove -Wa,-g and everyone will be happy...

Haavard