gdb/patches/gdb-6.3-step-thread-exit-20050211-test.patch

   1 2005-02-11  Jeff Johnston  <jjohnstn@redhat.com>
   2
   3         * testsuite/gdb.threads/step-thread-exit.c: New testcase.
   4         * testsuite/gdb.threads/step-thread-exit.exp: Ditto.
   5
   6 Index: gdb-6.8.50.20081128/gdb/testsuite/gdb.threads/step-thread-exit.c
   7 ===================================================================
   8 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
   9 +++ gdb-6.8.50.20081128/gdb/testsuite/gdb.threads/step-thread-exit.c    2008-12-08 22:21:26.000000000 +0100
  10 @@ -0,0 +1,50 @@
  11 +/* This testcase is part of GDB, the GNU debugger.
  12 +
  13 +   Copyright 2005 Free Software Foundation, Inc.
  14 +
  15 +   This program is free software; you can redistribute it and/or modify
  16 +   it under the terms of the GNU General Public License as published by
  17 +   the Free Software Foundation; either version 2 of the License, or
  18 +   (at your option) any later version.
  19 +
  20 +   This program is distributed in the hope that it will be useful,
  21 +   but WITHOUT ANY WARRANTY; without even the implied warranty of
  22 +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 +   GNU General Public License for more details.
  24 +
  25 +   You should have received a copy of the GNU General Public License
  26 +   along with this program; if not, write to the Free Software
  27 +   Foundation, Inc., 59 Temple Place - Suite 330,
  28 +   Boston, MA 02111-1307, USA.  */
  29 +
  30 +#include <pthread.h>
  31 +#include <stdio.h>
  32 +#include <stdlib.h>
  33 +#include <unistd.h>
  34 +
  35 +void *thread_function (void *ptr)
  36 +{
  37 +  int *x = (int *)ptr;
  38 +  printf("In thread_function, *x is %d\n", *x);
  39 +} /* thread_function_end */
  40 +
  41 +volatile int repeat = 0;
  42 +
  43 +main()
  44 +{
  45 +  int ret;
  46 +  pthread_t th;
  47 +  int i = 3;
  48 +
  49 +  ret = pthread_create (&th, NULL, thread_function, &i);
  50 +  do
  51 +    {
  52 +      repeat = 0;
  53 +      sleep (3);  /* sleep */
  54 +    }
  55 +  while (repeat);
  56 +  pthread_join (th, NULL);
  57 +  return 0;
  58 +}
  59 +
  60 +
  61 Index: gdb-6.8.50.20081128/gdb/testsuite/gdb.threads/step-thread-exit.exp
  62 ===================================================================
  63 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
  64 +++ gdb-6.8.50.20081128/gdb/testsuite/gdb.threads/step-thread-exit.exp  2008-12-08 22:22:14.000000000 +0100
  65 @@ -0,0 +1,123 @@
  66 +# This testcase is part of GDB, the GNU debugger.
  67 +
  68 +# Copyright 2005 Free Software Foundation, Inc.
  69 +
  70 +# This program is free software; you can redistribute it and/or modify
  71 +# it under the terms of the GNU General Public License as published by
  72 +# the Free Software Foundation; either version 2 of the License, or
  73 +# (at your option) any later version.
  74 +#
  75 +# This program is distributed in the hope that it will be useful,
  76 +# but WITHOUT ANY WARRANTY; without even the implied warranty of
  77 +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  78 +# GNU General Public License for more details.
  79 +#
  80 +# You should have received a copy of the GNU General Public License
  81 +# along with this program; if not, write to the Free Software
  82 +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  83 +
  84 +# Check that GDB can step over a thread exit.
  85 +
  86 +set testfile "step-thread-exit"
  87 +set srcfile ${testfile}.c
  88 +set binfile ${objdir}/${subdir}/${testfile}
  89 +if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
  90 +    return -1
  91 +}
  92 +
  93 +gdb_exit
  94 +gdb_start
  95 +gdb_reinitialize_dir $srcdir/$subdir
  96 +gdb_load ${binfile}
  97 +
  98 +# Reset the debug file directory so we can't debug within the C library
  99 +gdb_test "set debug-file-directory ." "" ""
 100 +
 101 +#
 102 +# Run to `main' where we begin our tests.
 103 +#
 104 +
 105 +if ![runto_main] then {
 106 +    gdb_suppress_tests
 107 +}
 108 +
 109 +# FIXME: Currently the main thread will escape/exit before our thread finishes
 110 +# without this setting.
 111 +gdb_test "set scheduler-locking step"
 112 +gdb_test "show scheduler-locking" "Mode for locking scheduler during execution is \"step\"." "check scheduler-locking first"
 113 +
 114 +set sleep_line [expr [gdb_get_line_number "sleep"]]
 115 +set end_line [expr [gdb_get_line_number "thread_function_end"]]
 116 +
 117 +gdb_breakpoint "$end_line"
 118 +gdb_test "continue" "Break.*thread_function.*" "continue to thread_function 1"
 119 +
 120 +# Keep nexting until we cause the thread to exit.  We expect the main
 121 +# thread to be stopped and a message printed to tell us we have stepped
 122 +# over the thread exit.
 123 +set test "step over thread exit 1"
 124 +gdb_test_multiple "next" "$test" {
 125 +  -re "\}.*$gdb_prompt $" {
 126 +     send_gdb "next\n"
 127 +     exp_continue
 128 +  }
 129 +  -re "\[Thread .* exited\].*Program received signal SIGSTOP.*$gdb_prompt $" {
 130 +     pass "$test"
 131 +  }
 132 +  -re "start_thread.*$gdb_prompt $" {
 133 +     send_gdb "next\n"
 134 +     exp_continue
 135 +  }
 136 +}
 137 +
 138 +# Without this fixup we could end up in:
 139 +# #0  0x00110416 in __kernel_vsyscall ()
 140 +# #1  0x0011de26 in __lll_unlock_wake_private () from /lib/libpthread.so.0
 141 +# #2  0x001179f4 in _L_unlock_3164 () from /lib/libpthread.so.0
 142 +# #3  0x00116f01 in pthread_create@@GLIBC_2.1 () from /lib/libpthread.so.0
 143 +# #4  0x08048531 in main () at ../.././gdb/testsuite/gdb.threads/step-thread-exit.c:39
 144 +gdb_breakpoint "$sleep_line"
 145 +gdb_test "set repeat=1" "" "Get to the sleep function prepare 1"
 146 +gdb_test "continue" "Break.*$sleep_line.*" "Get to the sleep function 1"
 147 +
 148 +gdb_test "bt" "main.*$sleep_line.*" "backtrace after step 1"
 149 +
 150 +runto_main
 151 +gdb_test "show scheduler-locking" "Mode for locking scheduler during execution is \"step\"." "check scheduler-locking second"
 152 +
 153 +gdb_breakpoint "$sleep_line"
 154 +gdb_breakpoint "$end_line"
 155 +set test "continue to thread_function 2"
 156 +gdb_test_multiple "continue" "$test" {
 157 +    -re "Break.*thread_function.*$gdb_prompt $" {
 158 +       pass $test
 159 +    }
 160 +    -re "Break.*$sleep_line.*$gdb_prompt $" {
 161 +       gdb_test "set repeat=1" "" ""
 162 +       send_gdb "continue\n"
 163 +       exp_continue
 164 +    }
 165 +}
 166 +
 167 +# Keep nexting until we cause the thread to exit.  In this case, we
 168 +# expect the breakpoint in the main thread to have already triggered
 169 +# and so we should stop there with a message that we stepped over
 170 +# the thread exit.
 171 +set test "step over thread exit 2"
 172 +gdb_test_multiple "next" "$test" {
 173 +  -re "\}.*$gdb_prompt $" {
 174 +     send_gdb "next\n"
 175 +     exp_continue
 176 +  }
 177 +  -re "\[Thread .* exited\].*Break.*$sleep_line.*$gdb_prompt $" {
 178 +     pass "$test (breakpoint hit)"
 179 +  }
 180 +  -re "\[Thread .* exited\].*$gdb_prompt $" {
 181 +     pass "$test (breakpoint not hit)"
 182 +  }
 183 +  -re "start_thread.*$gdb_prompt $" {
 184 +     send_gdb "next\n"
 185 +     exp_continue
 186 +  }
 187 +}
 188 +