Re: [PATCH 01/11] [gdb/testsuite] Add gdb.base/fission-macro.exp

[Christophe Lyon <christophe.lyon@linaro.org>]

On Mon, 17 Jun 2024 at 10:22, Tom de Vries <tdevries@suse.de> wrote:
>
> On 6/17/24 10:16, Christophe Lyon wrote:
> > Hi Tom,
> >
> > On Thu, 13 Jun 2024 at 17:40, Tom de Vries <tdevries@suse.de> wrote:
> >>
> >> On 5/21/24 17:44, Tom de Vries wrote:
> >>> Starting with gcc commit 80048aa13a6 ("debug/111409 - don't generate COMDAT
> >>> macro sections for split DWARF"), available from release gcc 14.1 onwards, gcc
> >>> produces a usable dwarf-5 32-bit .debug_macro.dwo section.
> >>>
> >>> Add a test-case excercising this.
> >>>
> >>
> >> I went ahead and pushed this patch, since it only adds a test-case.
> >>
> >
> > As you may have noticed, this patch was flagged by our CI on arm:
> > FAIL: gdb.base/fission-macro.exp: dwarf_version=5: dwarf_bits=32:
> > strict_dwarf=0: info macro FIRST
> > FAIL: gdb.base/fission-macro.exp: dwarf_version=5: dwarf_bits=32:
> > strict_dwarf=0: info macro FOURTH
> > FAIL: gdb.base/fission-macro.exp: dwarf_version=5: dwarf_bits=32:
> > strict_dwarf=0: info macro SECOND
> > FAIL: gdb.base/fission-macro.exp: dwarf_version=5: dwarf_bits=32:
> > strict_dwarf=0: info macro THIRD
> > FAIL: gdb.base/fission-macro.exp: dwarf_version=5: dwarf_bits=32:
> > strict_dwarf=1: info macro FIRST
> > FAIL: gdb.base/fission-macro.exp: dwarf_version=5: dwarf_bits=32:
> > strict_dwarf=1: info macro FOURTH
> > FAIL: gdb.base/fission-macro.exp: dwarf_version=5: dwarf_bits=32:
> > strict_dwarf=1: info macro SECOND
> > FAIL: gdb.base/fission-macro.exp: dwarf_version=5: dwarf_bits=32:
> > strict_dwarf=1: info macro THIRD
> >
> >
> >  From gdb.log I can see:
> > info macro FIRST
> > Defined at /home/tcwg-buildslave/workspace/tcwg_gnu_2/abe/snapshots/gdb.git~master/gdb/testsuite/gdb.base/fission-macro.c:0
> > -DFIRST=1
> > (gdb) FAIL: gdb.base/fission-macro.exp: dwarf_version=5:
> > dwarf_bits=32: strict_dwarf=0: info macro FIRST
> > info macro SECOND
> > Defined at /home/tcwg-buildslave/workspace/tcwg_gnu_2/abe/snapshots/gdb.git~master/gdb/testsuite/gdb.base/fission-macro.c:0
> > -DSECOND=2
> > (gdb) FAIL: gdb.base/fission-macro.exp: dwarf_version=5:
> > dwarf_bits=32: strict_dwarf=0: info macro SECOND
> >
> > info macro THIRD
> > Defined at /home/tcwg-buildslave/workspace/tcwg_gnu_2/abe/snapshots/gdb.git~master/gdb/testsuite/gdb.base/fission-macro-2.c:0
> > -DTHIRD=3
> > (gdb) FAIL: gdb.base/fission-macro.exp: dwarf_version=5:
> > dwarf_bits=32: strict_dwarf=0: info macro THIRD
> > info macro FOURTH
> > Defined at /home/tcwg-buildslave/workspace/tcwg_gnu_2/abe/snapshots/gdb.git~master/gdb/testsuite/gdb.base/fission-macro-2.c:0
> > -DFOURTH=4
> > (gdb) FAIL: gdb.base/fission-macro.exp: dwarf_version=5:
> > dwarf_bits=32: strict_dwarf=0: info macro FOURTH
> >
> >
> > I've also noticed:
> > get_compiler_info: gcc-15-0-0
> >
> > (which is expected, this CI loop is using trunk GCC)
> >
> > Does this help?
>
> Hi Christophe,
>
> Thanks for the info.
>
> Indeed I already noticed it, and filed this PR (
> https://sourceware.org/bugzilla/show_bug.cgi?id=31897 ) to track it.
>
> I managed to reproduce it, and AFAICT it's fixed by the following patch
> in the patch series (something I didn't realize when committing, because
> this FAIL occurs only on 32-bit targets).
>
> Sorry for the noise.
>

Thanks for the pointer, I had missed it.

Christophe

> Thanks,
> - Tom