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* [Bug gdb/14548] New: reverse: cannot step-over jmp-only-functions
@ 2012-09-06  9:00 jan.kratochvil at redhat dot com
  2012-09-06  9:02 ` [Bug gdb/14548] " jan.kratochvil at redhat dot com
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: jan.kratochvil at redhat dot com @ 2012-09-06  9:00 UTC (permalink / raw)
  To: gdb-prs

http://sourceware.org/bugzilla/show_bug.cgi?id=14548

             Bug #: 14548
           Summary: reverse: cannot step-over jmp-only-functions
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
        AssignedTo: unassigned@sourceware.org
        ReportedBy: jan.kratochvil@redhat.com
    Classification: Unclassified


Created attachment 6625
  --> http://sourceware.org/bugzilla/attachment.cgi?id=6625
testcase.c

formerly: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54405

gdb ./a.out -ex start -ex record -ex next -ex next -ex 'set debug infrun 1' -ex
reverse-next

FAIL:
No more reverse-execution history.
main () at 12.c:18
18      v = 1;

PASS:
19      f ();

You should compile it with gcc < 4.7 (such as FSF GCC 4.6) to avoid another
bug.

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* [Bug gdb/14548] reverse: cannot step-over jmp-only-functions
  2012-09-06  9:00 [Bug gdb/14548] New: reverse: cannot step-over jmp-only-functions jan.kratochvil at redhat dot com
@ 2012-09-06  9:02 ` jan.kratochvil at redhat dot com
  2012-09-06  9:04 ` jan.kratochvil at redhat dot com
                   ` (4 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: jan.kratochvil at redhat dot com @ 2012-09-06  9:02 UTC (permalink / raw)
  To: gdb-prs

http://sourceware.org/bugzilla/show_bug.cgi?id=14548

--- Comment #1 from Jan Kratochvil <jan.kratochvil at redhat dot com> 2012-09-06 09:02:09 UTC ---
Created attachment 6626
  --> http://sourceware.org/bugzilla/attachment.cgi?id=6626
non-regression-tested GDB fix

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug gdb/14548] reverse: cannot step-over jmp-only-functions
  2012-09-06  9:00 [Bug gdb/14548] New: reverse: cannot step-over jmp-only-functions jan.kratochvil at redhat dot com
  2012-09-06  9:02 ` [Bug gdb/14548] " jan.kratochvil at redhat dot com
@ 2012-09-06  9:04 ` jan.kratochvil at redhat dot com
  2012-09-12 18:05 ` jan.kratochvil at redhat dot com
                   ` (3 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: jan.kratochvil at redhat dot com @ 2012-09-06  9:04 UTC (permalink / raw)
  To: gdb-prs

http://sourceware.org/bugzilla/show_bug.cgi?id=14548

--- Comment #2 from Jan Kratochvil <jan.kratochvil at redhat dot com> 2012-09-06 09:03:32 UTC ---
Created attachment 6627
  --> http://sourceware.org/bugzilla/attachment.cgi?id=6627
Unrelated fix (for myself) for gcc >= 4.7

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* [Bug gdb/14548] reverse: cannot step-over jmp-only-functions
  2012-09-06  9:00 [Bug gdb/14548] New: reverse: cannot step-over jmp-only-functions jan.kratochvil at redhat dot com
  2012-09-06  9:02 ` [Bug gdb/14548] " jan.kratochvil at redhat dot com
  2012-09-06  9:04 ` jan.kratochvil at redhat dot com
@ 2012-09-12 18:05 ` jan.kratochvil at redhat dot com
  2012-09-17  7:10 ` cvs-commit at gcc dot gnu.org
                   ` (2 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: jan.kratochvil at redhat dot com @ 2012-09-12 18:05 UTC (permalink / raw)
  To: gdb-prs

http://sourceware.org/bugzilla/show_bug.cgi?id=14548

Jan Kratochvil <jan.kratochvil at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #6627|0                           |1
        is obsolete|                            |

--- Comment #3 from Jan Kratochvil <jan.kratochvil at redhat dot com> 2012-09-12 18:05:12 UTC ---
Comment on attachment 6627
  --> http://sourceware.org/bugzilla/attachment.cgi?id=6627
Unrelated fix (for myself) for gcc >= 4.7

Included instead in:
[patch+7.5?] Fix GDB-return into TAILCALL_FRAME (PR 14119)
http://sourceware.org/ml/gdb-patches/2012-09/msg00218.html

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* [Bug gdb/14548] reverse: cannot step-over jmp-only-functions
  2012-09-06  9:00 [Bug gdb/14548] New: reverse: cannot step-over jmp-only-functions jan.kratochvil at redhat dot com
                   ` (2 preceding siblings ...)
  2012-09-12 18:05 ` jan.kratochvil at redhat dot com
@ 2012-09-17  7:10 ` cvs-commit at gcc dot gnu.org
  2012-09-17  7:15 ` cvs-commit at gcc dot gnu.org
  2012-09-17  7:22 ` jan.kratochvil at redhat dot com
  5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2012-09-17  7:10 UTC (permalink / raw)
  To: gdb-prs

http://sourceware.org/bugzilla/show_bug.cgi?id=14548

--- Comment #4 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> 2012-09-17 07:09:43 UTC ---
CVSROOT:    /cvs/src
Module name:    src
Changes by:    jkratoch@sourceware.org    2012-09-17 07:09:35

Modified files:
    gdb            : ChangeLog infrun.c 
    gdb/testsuite  : ChangeLog 
Added files:
    gdb/testsuite/gdb.reverse: singlejmp-reverse-nodebug.S 
                               singlejmp-reverse-nodebug.c 
                               singlejmp-reverse.S 
                               singlejmp-reverse.c 
                               singlejmp-reverse.exp 

Log message:
    gdb/
    PR 14548
    * infrun.c (handle_inferior_event): Do not reverse-continue back to the
    function start if we are already at function start.  Both for
    reverse-next and for reverse-step into function without line number
    info.

    gdb/testsuite/
    PR 14548
    * gdb.reverse/singlejmp-reverse-nodebug.S: New file.
    * gdb.reverse/singlejmp-reverse-nodebug.c: New file.
    * gdb.reverse/singlejmp-reverse.S: New file.
    * gdb.reverse/singlejmp-reverse.c: New file.
    * gdb.reverse/singlejmp-reverse.exp: New file.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.14662&r2=1.14663
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/infrun.c.diff?cvsroot=src&r1=1.557&r2=1.558
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/ChangeLog.diff?cvsroot=src&r1=1.3374&r2=1.3375
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.reverse/singlejmp-reverse-nodebug.S.diff?cvsroot=src&r1=NONE&r2=1.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.reverse/singlejmp-reverse-nodebug.c.diff?cvsroot=src&r1=NONE&r2=1.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.reverse/singlejmp-reverse.S.diff?cvsroot=src&r1=NONE&r2=1.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.reverse/singlejmp-reverse.c.diff?cvsroot=src&r1=NONE&r2=1.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.reverse/singlejmp-reverse.exp.diff?cvsroot=src&r1=NONE&r2=1.1

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* [Bug gdb/14548] reverse: cannot step-over jmp-only-functions
  2012-09-06  9:00 [Bug gdb/14548] New: reverse: cannot step-over jmp-only-functions jan.kratochvil at redhat dot com
                   ` (3 preceding siblings ...)
  2012-09-17  7:10 ` cvs-commit at gcc dot gnu.org
@ 2012-09-17  7:15 ` cvs-commit at gcc dot gnu.org
  2012-09-17  7:22 ` jan.kratochvil at redhat dot com
  5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2012-09-17  7:15 UTC (permalink / raw)
  To: gdb-prs

http://sourceware.org/bugzilla/show_bug.cgi?id=14548

--- Comment #5 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> 2012-09-17 07:15:01 UTC ---
CVSROOT:    /cvs/src
Module name:    src
Branch:     gdb_7_5-branch
Changes by:    jkratoch@sourceware.org    2012-09-17 07:14:56

Modified files:
    gdb            : ChangeLog infrun.c 
    gdb/testsuite  : ChangeLog 
Added files:
    gdb/testsuite/gdb.reverse: singlejmp-reverse-nodebug.S 
                               singlejmp-reverse-nodebug.c 
                               singlejmp-reverse.S 
                               singlejmp-reverse.c 
                               singlejmp-reverse.exp 

Log message:
    gdb/
    PR 14548
    * infrun.c (handle_inferior_event): Do not reverse-continue back to the
    function start if we are already at function start.  Both for
    reverse-next and for reverse-step into function without line number
    info.

    gdb/testsuite/
    PR 14548
    * gdb.reverse/singlejmp-reverse-nodebug.S: New file.
    * gdb.reverse/singlejmp-reverse-nodebug.c: New file.
    * gdb.reverse/singlejmp-reverse.S: New file.
    * gdb.reverse/singlejmp-reverse.c: New file.
    * gdb.reverse/singlejmp-reverse.exp: New file.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=1.14469.2.31&r2=1.14469.2.32
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/infrun.c.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=1.549&r2=1.549.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/ChangeLog.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=1.3295.2.21&r2=1.3295.2.22
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.reverse/singlejmp-reverse-nodebug.S.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=NONE&r2=1.1.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.reverse/singlejmp-reverse-nodebug.c.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=NONE&r2=1.1.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.reverse/singlejmp-reverse.S.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=NONE&r2=1.1.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.reverse/singlejmp-reverse.c.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=NONE&r2=1.1.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.reverse/singlejmp-reverse.exp.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=NONE&r2=1.1.2.1

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* [Bug gdb/14548] reverse: cannot step-over jmp-only-functions
  2012-09-06  9:00 [Bug gdb/14548] New: reverse: cannot step-over jmp-only-functions jan.kratochvil at redhat dot com
                   ` (4 preceding siblings ...)
  2012-09-17  7:15 ` cvs-commit at gcc dot gnu.org
@ 2012-09-17  7:22 ` jan.kratochvil at redhat dot com
  5 siblings, 0 replies; 7+ messages in thread
From: jan.kratochvil at redhat dot com @ 2012-09-17  7:22 UTC (permalink / raw)
  To: gdb-prs

http://sourceware.org/bugzilla/show_bug.cgi?id=14548

Jan Kratochvil <jan.kratochvil at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |jan.kratochvil at redhat
                   |                            |dot com
         Resolution|                            |FIXED
         AssignedTo|unassigned at sourceware    |jan.kratochvil at redhat
                   |dot org                     |dot com
   Target Milestone|---                         |7.5

--- Comment #6 from Jan Kratochvil <jan.kratochvil at redhat dot com> 2012-09-17 07:22:20 UTC ---
Checked in for 7.5.1.

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end of thread, other threads:[~2012-09-17  7:22 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-09-06  9:00 [Bug gdb/14548] New: reverse: cannot step-over jmp-only-functions jan.kratochvil at redhat dot com
2012-09-06  9:02 ` [Bug gdb/14548] " jan.kratochvil at redhat dot com
2012-09-06  9:04 ` jan.kratochvil at redhat dot com
2012-09-12 18:05 ` jan.kratochvil at redhat dot com
2012-09-17  7:10 ` cvs-commit at gcc dot gnu.org
2012-09-17  7:15 ` cvs-commit at gcc dot gnu.org
2012-09-17  7:22 ` jan.kratochvil at redhat dot com

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