gdb/patches/gdb-6.5-bz216711-clone-is-outermost.patch

   1 https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=216711
   2
   3 FIXME: This workaround should be dropped and
   4 glibc/sysdeps/unix/sysv/linux/x86_64/clone.S should get CFI for the child
   5 instead.
   6
   7 2006-12-17  Jan Kratochvil  <jan.kratochvil@redhat.com>
   8
   9         * gdb/amd64-linux-tdep.c (linux_clone_code): New variable.
  10         (LINUX_CLONE_LEN): New definition.
  11         (amd64_linux_clone_running, amd64_linux_outermost_frame): New function.
  12         (amd64_linux_init_abi): Initialize `outermost_frame_p'.
  13         * gdb/i386-tdep.c (i386_gdbarch_init): Likewise.
  14         * gdb/i386-tdep.h (gdbarch_tdep): Add `outermost_frame_p' member.
  15         * gdb/amd64-tdep.c (amd64_frame_this_id): Call `outermost_frame_p'.
  16
  17 2006-12-17  Jan Kratochvil  <jan.kratochvil@redhat.com>
  18
  19         * gdb.threads/bt-clone-stop.exp, gdb.threads/bt-clone-stop.c:
  20         New file.
  21
  22 2007-10-16  Jan Kratochvil  <jan.kratochvil@redhat.com>
  23
  24         Port to GDB-6.7.
  25
  26 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
  27 +++ gdb-6.8.50.20090802/gdb/testsuite/gdb.threads/bt-clone-stop.c       2009-08-03 15:50:08.000000000 +0200
  28 @@ -0,0 +1,39 @@
  29 +/* This testcase is part of GDB, the GNU debugger.
  30 +
  31 +   Copyright 2006 Free Software Foundation, Inc.
  32 +
  33 +   This program is free software; you can redistribute it and/or modify
  34 +   it under the terms of the GNU General Public License as published by
  35 +   the Free Software Foundation; either version 2 of the License, or
  36 +   (at your option) any later version.
  37 +
  38 +   This program is distributed in the hope that it will be useful,
  39 +   but WITHOUT ANY WARRANTY; without even the implied warranty of
  40 +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  41 +   GNU General Public License for more details.
  42 +
  43 +   You should have received a copy of the GNU General Public License
  44 +   along with this program; if not, write to the Free Software
  45 +   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  46 +   MA 02110-1301, USA.  */
  47 +
  48 +
  49 +#include <pthread.h>
  50 +#include <unistd.h>
  51 +#include <assert.h>
  52 +
  53 +
  54 +void *threader (void *arg)
  55 +{
  56 +       assert (0);
  57 +       return NULL;
  58 +}
  59 +
  60 +int main (void)
  61 +{
  62 +       pthread_t t1;
  63 +
  64 +       pthread_create (&t1, NULL, threader, (void *) NULL);
  65 +       for (;;)
  66 +               pause();
  67 +}
  68 Index: gdb-6.8.50.20090802/gdb/testsuite/gdb.threads/bt-clone-stop.exp
  69 ===================================================================
  70 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
  71 +++ gdb-6.8.50.20090802/gdb/testsuite/gdb.threads/bt-clone-stop.exp     2009-08-03 15:50:08.000000000 +0200
  72 @@ -0,0 +1,61 @@
  73 +# Copyright 2006 Free Software Foundation, Inc.
  74 +
  75 +# This program is free software; you can redistribute it and/or modify
  76 +# it under the terms of the GNU General Public License as published by
  77 +# the Free Software Foundation; either version 2 of the License, or
  78 +# (at your option) any later version.
  79 +#
  80 +# This program is distributed in the hope that it will be useful,
  81 +# but WITHOUT ANY WARRANTY; without even the implied warranty of
  82 +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  83 +# GNU General Public License for more details.
  84 +#
  85 +# You should have received a copy of the GNU General Public License
  86 +# along with this program; if not, write to the Free Software
  87 +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  88 +
  89 +# Backtraced `clone' must not have `PC == 0' as its previous frame.
  90 +
  91 +if $tracelevel then {
  92 +    strace $tracelevel
  93 +}
  94 +
  95 +set testfile bt-clone-stop
  96 +set srcfile ${testfile}.c
  97 +set binfile ${objdir}/${subdir}/${testfile}
  98 +if  { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  99 +    untested "Couldn't compile test program"
 100 +    return -1
 101 +}
 102 +
 103 +# Get things started.
 104 +
 105 +gdb_exit
 106 +gdb_start
 107 +gdb_reinitialize_dir $srcdir/$subdir
 108 +gdb_load ${binfile}
 109 +
 110 +# threader: threader.c:8: threader: Assertion `0' failed.
 111 +# Program received signal SIGABRT, Aborted.
 112 +
 113 +gdb_test "run" \
 114 +     "Program received signal SIGABRT.*" \
 115 +     "run"
 116 +
 117 +# Former gdb unwind (the first function is `clone'):
 118 +# #5  0x0000003421ecd62d in ?? () from /lib64/libc.so.6
 119 +# #6  0x0000000000000000 in ?? ()
 120 +# (gdb)
 121 +# Tested `amd64_linux_outermost_frame' functionality should omit the line `#6'.
 122 +#
 123 +# Two `-re' cases below must be in this order (1st is a subset of the 2nd one).
 124 +# Unhandled case below should not happen and it is fortunately handled by
 125 +# `amd64_linux_outermost_frame' as FAIL (and result `0x0 entry output invalid').
 126 +gdb_test_multiple "bt" "0x0 entry output invalid" {
 127 +    -re "in threader \\(.*\n#\[0-9\]* *0x0* in .*$gdb_prompt $" {
 128 +       fail "0x0 entry found"
 129 +    }
 130 +    -re "in threader \\(.*$gdb_prompt $" {
 131 +       pass "0x0 entry not found"
 132 +    }
 133 +}