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From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug gdb/31256] Crash with basic 'list .'
Date: Tue, 23 Jan 2024 15:59:16 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D31256

--- Comment #7 from Sourceware Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Guinevere Larsen
<blarsen@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=3Dbinutils-gdb.git;h=3D0068bd6fb357=
9dd8df7561e038cb3fe27f122b0e

commit 0068bd6fb3579dd8df7561e038cb3fe27f122b0e
Author: Guinevere Larsen <blarsen@redhat.com>
Date:   Mon Jan 22 10:13:52 2024 +0100

    gdb: fix "list ." related crash

    When a user attempts to use the "list ." command with an inferior that
    doesn't have debug symbols, GDB would crash. This was reported as PR
    gdb/31256.

    The crash would happen when attempting to get the current symtab_and_li=
ne
    for the stop location, because the symtab would return a null pointer
    and we'd attempt to dereference it to print the line.

    This commit fixes that by checking for an empty symtab and erroring out
    of the function if it happens.

    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=3D31256
    Approved-By: Tom Tromey <tom@tromey.com>

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