[Bug gdb/14647] New: [x32] "next" doesn't work with -O -g

[Bug gdb/14647] New: [x32] "next" doesn't work with -O -g

[hjl.tools at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14647

             Bug #: 14647
           Summary: [x32] "next" doesn't work with -O -g
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
        AssignedTo: unassigned@sourceware.org
        ReportedBy: hjl.tools@gmail.com
    Classification: Unclassified


On Linux/x32, I got

[hjl@gnu-tools-1 tmp]$ cat x.c
void bar ();

int
main ()
{
  bar ();
  return 0;
}
[hjl@gnu-tools-1 tmp]$ cat y.c
void
bar ()
{
}
[hjl@gnu-tools-1 tmp]$ gcc -O -mx32 -g x.c y.c
[hjl@gnu-tools-1 tmp]$ gdb a.out 
GNU gdb (GDB) 7.5.50.20120925-cvs
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-unknown-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /tmp/a.out...done.
(gdb) b main
Breakpoint 1 at 0x40038c: file x.c, line 5.
(gdb) r
Starting program: /tmp/a.out 

Breakpoint 1, main () at x.c:5
5    {
(gdb) next
6      bar ();
(gdb) 
bar () at y.c:3
3    {
(gdb)

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[Bug gdb/14647] [x32] "next" doesn't work with -O -g

[hjl.tools at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14647

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2012-09-29 23:24:12 UTC ---
hjl/x32/gdb_7_4-branch git branch at

http://sourceware.org/git/?p=gdb.git;a=summary

works fine.

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[Bug gdb/14647] [x32] "next" doesn't work with -O -g

[jan.kratochvil at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14647

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jan.kratochvil at redhat
                   |                            |dot com

--- Comment #2 from Jan Kratochvil <jan.kratochvil at redhat dot com> 2012-10-01 16:13:33 UTC ---
Not taking this bug but it would be good to have a -nostdlib testcase for this
regression as it should be compatible with common x86_64 OSes.

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[Bug gdb/14647] [x32] "next" doesn't work with -O -g

[hjl.tools at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14647

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2012-10-01 16:30:18 UTC ---
(In reply to comment #2)
> Not taking this bug but it would be good to have a -nostdlib testcase for this
> regression as it should be compatible with common x86_64 OSes.

How should a -nostdlib testcase work? I believe such testcase only works
in x32 environment.

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[Bug gdb/14647] [x32] "next" doesn't work with -O -g

[cvs-commit at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=14647

--- Comment #4 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> 2012-10-15 20:37:43 UTC ---
CVSROOT:    /cvs/src
Module name:    src
Changes by:    hjl@sourceware.org    2012-10-15 20:37:39

Modified files:
    gdb            : ChangeLog amd64-tdep.c i386-tdep.c i386-tdep.h 

Log message:
    Remove sp_regnum_from_eax and pc_regnum_from_eax

    PR backtrace/14646
    PR gdb/14647
    * i386-tdep.h (gdbarch_tdep): Remove sp_regnum_from_eax and
    pc_regnum_from_eax.
    * i386-tdep.c (i386_gdbarch_init): Don't use sp_regnum_from_eax
    nor pc_regnum_from_eax.
    * amd64-tdep.c (amd64_x32_init_abi): Don't set sp_regnum_from_eax
    nor pc_regnum_from_eax.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.14736&r2=1.14737
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/amd64-tdep.c.diff?cvsroot=src&r1=1.112&r2=1.113
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/i386-tdep.c.diff?cvsroot=src&r1=1.357&r2=1.358
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/i386-tdep.h.diff?cvsroot=src&r1=1.80&r2=1.81

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[Bug gdb/14647] [x32] "next" doesn't work with -O -g

[cvs-commit at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=14647

--- Comment #5 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> 2012-11-10 00:50:53 UTC ---
CVSROOT:    /cvs/src
Module name:    src
Branch:     gdb_7_5-branch
Changes by:    hjl@sourceware.org    2012-11-10 00:50:46

Modified files:
    gdb            : ChangeLog amd64-tdep.c i386-tdep.c i386-tdep.h 

Log message:
    Remove sp_regnum_from_eax and pc_regnum_from_eax

    PR backtrace/14646
    PR gdb/14647
    * i386-tdep.h (gdbarch_tdep): Remove sp_regnum_from_eax and
    pc_regnum_from_eax.
    * i386-tdep.c (i386_gdbarch_init): Don't use sp_regnum_from_eax
    nor pc_regnum_from_eax.
    * amd64-tdep.c (amd64_x32_init_abi): Don't set sp_regnum_from_eax
    nor pc_regnum_from_eax.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=1.14469.2.37&r2=1.14469.2.38
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/amd64-tdep.c.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=1.109&r2=1.109.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/i386-tdep.c.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=1.355&r2=1.355.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/i386-tdep.h.diff?cvsroot=src&only_with_tag=gdb_7_5-branch&r1=1.80&r2=1.80.2.1

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[Bug gdb/14647] [x32] "next" doesn't work with -O -g

[hjl.tools at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14647

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |7.5

--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> 2012-11-10 00:52:37 UTC ---
Fixed on 7.5 branch.

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