[Bug testsuite/31450] [gdb/testsuite] FAIL: gdb.base/ending-run.exp: step out of main

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=31450

--- Comment #2 from Sourceware Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tom de Vries <vries@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=4ef6173d2dfeafd33deedf7ce0d384cfbcf1170d

commit 4ef6173d2dfeafd33deedf7ce0d384cfbcf1170d
Author: Tom de Vries <tdevries@suse.de>
Date:   Thu Mar 28 08:26:31 2024 +0100

    [gdb/testsuite] Fix gdb.base/ending-run.exp on manjaro linux

    On aarch64-linux, using the manjaro linux distro, I run into:
    ...
    (gdb) next^M
    32      }^M
    (gdb) next^M
    0x0000fffff7d67b80 in ?? () from /usr/lib/libc.so.6^M
    (gdb) FAIL: gdb.base/ending-run.exp: step out of main
    ...

    What happens here is described in detail in this clause:
    ...
        -re "0x.*\\?\\? \\(\\) from /lib/powerpc.*$gdb_prompt $" {
            # This case occurs on Powerpc when gdb steps out of main and the
            # needed debug info files are not loaded on the system, preventing
            # GDB to determine which function it reached
(__libc_start_call_main).
            # Ideally, the target system would have the necessary debugging
            # information, but in its absence, GDB's behavior is as expected.
            ...
        }
    ...
    but the clause only matches for powerpc.

    Fix this by:
    - making the regexp generic enough to also match /usr/lib/libc.so.6, and
    - updating the comment to not mention powerpc.

    Tested on aarch64-linux.

    PR testsuite/31450
    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31450

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