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From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug testsuite/29792] [gdb/testsuite, powerpc] FAIL: gdb.opt/solib-intra-step.exp: second-hit
Date: Mon, 28 Nov 2022 13:23:38 +0000	[thread overview]
Message-ID: <bug-29792-4717-nzebLbJKVc@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-29792-4717@http.sourceware.org/bugzilla/>

https://sourceware.org/bugzilla/show_bug.cgi?id=29792

--- Comment #3 from cvs-commit at gcc dot gnu.org <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=76cd77dc729b03d6b33c683323594479e33a3f9a

commit 76cd77dc729b03d6b33c683323594479e33a3f9a
Author: Tom de Vries <tdevries@suse.de>
Date:   Mon Nov 28 14:23:34 2022 +0100

    [gdb/testsuite] Fix gdb.opt/solib-intra-step.exp for powerpc64le

    On powerpc64le-linux, I run into:
    ...
    (gdb) PASS: gdb.opt/solib-intra-step.exp: first-hit
    step^M
    28      { /* first-retry */^M
    (gdb) FAIL: gdb.opt/solib-intra-step.exp: second-hit
    ...

    It's a bit easier to understand what happens if we do a full stepping
session:
    ...
    Temporary breakpoint 1, main ()
        at solib-intra-step-main.c:23
    23        shlib_first ();
    (gdb) step
    shlib_first () at solib-intra-step-lib.c:29
    29        shlib_second (0); /* first-hit */
    (gdb) step
    28      { /* first-retry */
    (gdb) step
    29        shlib_second (0); /* first-hit */
    (gdb) step
    shlib_second (dummy=0)
        at solib-intra-step-lib.c:23
    23        abort (); /* second-hit */
    ...
    and compare that to the line info:
    ...
    CU: solib-intra-step-lib.c:
    File name                    Line number    Starting address    View   
Stmt
    solib-intra-step-lib.c                22               0x710              
x
    solib-intra-step-lib.c                23               0x724              
x
    solib-intra-step-lib.c                28               0x740              
x
    solib-intra-step-lib.c                29               0x74c              
x
    solib-intra-step-lib.c                28               0x750              
x
    solib-intra-step-lib.c                29               0x758              
x
    solib-intra-step-lib.c                30               0x760              
x
    solib-intra-step-lib.c                 -               0x77c
    ...

    So we step from line 29 to line 28, and back to line 29, which is behaviour
    that matches the line table.  The peculiar order is due to using
optimization.
    The problem is that the test-case doesn't expect this order.

    Fix this by allowing this order in the test-case.

    Tested on powerpc64le-linux.

    PR testsuite/29792
    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29792

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  parent reply	other threads:[~2022-11-28 13:23 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-16 14:56 [Bug testsuite/29792] New: " vries at gcc dot gnu.org
2022-11-16 15:04 ` [Bug testsuite/29792] " vries at gcc dot gnu.org
2022-11-16 15:11 ` vries at gcc dot gnu.org
2022-11-16 15:14 ` vries at gcc dot gnu.org
2022-11-28 13:23 ` cvs-commit at gcc dot gnu.org [this message]
2022-11-28 13:25 ` vries at gcc dot gnu.org

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