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Subject: [Bug debug/101283] Several tests fail on Darwin with -gctf/gbtf
Date: Fri, 02 Jul 2021 14:50:43 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101283

--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Iain D Sandoe <iains@gcc.gnu.org>:

https://gcc.gnu.org/g:85017431068251628478f38346c273418c71209b

commit r12-1983-g85017431068251628478f38346c273418c71209b
Author: Iain Sandoe <iain@sandoe.co.uk>
Date:   Fri Jul 2 09:51:57 2021 +0100

    Darwin, CTF, BTF: Do not run the DWARF debug link for BTF/CTF [PR101283=
].

    Darwin uses an efficient two-stage process for debug linking.
    The static linker (ld64) notes the inputs required but does not
    link the debug.  When required / on demand the debug is linked
    into a separate package by the debug linker (dsymutil).  At
    present none of the Darwin tools consume or understand BTF/CTF.
    The static linker silently accepts the sections (but will not
    act on them as containing anything to be processed).

    However, the debug linker produces a warning that it has been
    presented with input with no [DWARF] debug content:
    warning: no debug symbols in executable (-arch x86_64).

    This causes several testsuite fails with excess errors.

    Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>

    PR debug/101283 - Several tests fail on Darwin with -gctf/gbtf

            PR debug/101283

    gcc/ChangeLog:

            * config/darwin.h (DSYMUTIL_SPEC): Do not try to run
            dsymutil for BTF/CTF.=