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Date: Wed, 04 Jan 2006 06:41:00 -0000
From: Jie Zhang <jzhang918@gmail.com>
To: Jim Blandy <jimb@red-bean.com>
Subject: Re: [PATCH] Add support for Analog Devices Blackfin processor (part 3/6: gdb testsuite)
Cc: gdb-patches@sources.redhat.com
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Hi Jim,

Thanks a lot for reviewing these patches!

On 1/4/06, Jim Blandy <jimb@red-bean.com> wrote:
> On 12/27/05, Jie Zhang <jzhang918@gmail.com> wrote:
> +        set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
>
> What's the story behind these -I flags that seem to be sprouting up in
> a lot of the cases in asm-source.exp?  It seems like they should
> either be necessary everywhere, or nowhere.
>
This is the easiest question for me, so I answer it first.

In asm-source.exp, first comes:

set asm-flags ""

After all target things, there is:

if { "${asm-flags}" =3D=3D "" } {
    set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
    set debug-flags "-gstabs"
}

So if target does not set asm-flags, the debug-flags will be set to
"-gstabs", which will override anything target set for it. If any
target want to use dwarf2 as debug information, like bfin and others,
it needs set asm-flags to the vanilla string to avoid the overriding.

Regards,
Jie