File gdb-6.3-step-thread-exit-20050211-test.patch of Package gdb

2005-02-11  Jeff Johnston  <jjohnstn@redhat.com>

	* testsuite/gdb.threads/step-thread-exit.c: New testcase.
	* testsuite/gdb.threads/step-thread-exit.exp: Ditto.
	
Index: gdb-6.8.50.20081128/gdb/testsuite/gdb.threads/step-thread-exit.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ gdb-6.8.50.20081128/gdb/testsuite/gdb.threads/step-thread-exit.c	2008-12-08 22:21:26.000000000 +0100
@@ -0,0 +1,50 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2005 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+void *thread_function (void *ptr)
+{
+  int *x = (int *)ptr;
+  printf("In thread_function, *x is %d\n", *x);
+} /* thread_function_end */
+
+volatile int repeat = 0;
+
+main()
+{
+  int ret;
+  pthread_t th;
+  int i = 3;
+
+  ret = pthread_create (&th, NULL, thread_function, &i);
+  do
+    {
+      repeat = 0;
+      sleep (3);  /* sleep */
+    }
+  while (repeat);
+  pthread_join (th, NULL);
+  return 0;
+}
+
+
Index: gdb-6.8.50.20081128/gdb/testsuite/gdb.threads/step-thread-exit.exp
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ gdb-6.8.50.20081128/gdb/testsuite/gdb.threads/step-thread-exit.exp	2008-12-08 22:22:14.000000000 +0100
@@ -0,0 +1,123 @@
+# This testcase is part of GDB, the GNU debugger.
+
+# Copyright 2005 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  
+
+# Check that GDB can step over a thread exit.
+
+set testfile "step-thread-exit"
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
+    return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+# Reset the debug file directory so we can't debug within the C library
+gdb_test "set debug-file-directory ." "" ""
+
+#
+# Run to `main' where we begin our tests.
+#
+
+if ![runto_main] then {
+    gdb_suppress_tests
+}
+
+# FIXME: Currently the main thread will escape/exit before our thread finishes
+# without this setting.
+gdb_test "set scheduler-locking step"
+gdb_test "show scheduler-locking" "Mode for locking scheduler during execution is \"step\"." "check scheduler-locking first"
+
+set sleep_line [expr [gdb_get_line_number "sleep"]]
+set end_line [expr [gdb_get_line_number "thread_function_end"]]
+
+gdb_breakpoint "$end_line"
+gdb_test "continue" "Break.*thread_function.*" "continue to thread_function 1"
+
+# Keep nexting until we cause the thread to exit.  We expect the main
+# thread to be stopped and a message printed to tell us we have stepped
+# over the thread exit.
+set test "step over thread exit 1"
+gdb_test_multiple "next" "$test" {
+  -re "\}.*$gdb_prompt $" {
+     send_gdb "next\n"
+     exp_continue
+  }
+  -re "\[Thread .* exited\].*Program received signal SIGSTOP.*$gdb_prompt $" {
+     pass "$test"
+  }
+  -re "start_thread.*$gdb_prompt $" {
+     send_gdb "next\n"
+     exp_continue
+  }
+}
+
+# Without this fixup we could end up in:
+# #0  0x00110416 in __kernel_vsyscall ()
+# #1  0x0011de26 in __lll_unlock_wake_private () from /lib/libpthread.so.0
+# #2  0x001179f4 in _L_unlock_3164 () from /lib/libpthread.so.0
+# #3  0x00116f01 in pthread_create@@GLIBC_2.1 () from /lib/libpthread.so.0
+# #4  0x08048531 in main () at ../.././gdb/testsuite/gdb.threads/step-thread-exit.c:39
+gdb_breakpoint "$sleep_line"
+gdb_test "set repeat=1" "" "Get to the sleep function prepare 1"
+gdb_test "continue" "Break.*$sleep_line.*" "Get to the sleep function 1"
+
+gdb_test "bt" "main.*$sleep_line.*" "backtrace after step 1"
+
+runto_main
+gdb_test "show scheduler-locking" "Mode for locking scheduler during execution is \"step\"." "check scheduler-locking second"
+
+gdb_breakpoint "$sleep_line"
+gdb_breakpoint "$end_line"
+set test "continue to thread_function 2"
+gdb_test_multiple "continue" "$test" {
+    -re "Break.*thread_function.*$gdb_prompt $" {
+	pass $test
+    }
+    -re "Break.*$sleep_line.*$gdb_prompt $" {
+	gdb_test "set repeat=1" "" ""
+	send_gdb "continue\n"
+	exp_continue
+    }
+}
+
+# Keep nexting until we cause the thread to exit.  In this case, we
+# expect the breakpoint in the main thread to have already triggered
+# and so we should stop there with a message that we stepped over
+# the thread exit.
+set test "step over thread exit 2"
+gdb_test_multiple "next" "$test" {
+  -re "\}.*$gdb_prompt $" {
+     send_gdb "next\n"
+     exp_continue
+  }
+  -re "\[Thread .* exited\].*Break.*$sleep_line.*$gdb_prompt $" {
+     pass "$test (breakpoint hit)"
+  }
+  -re "\[Thread .* exited\].*$gdb_prompt $" {
+     pass "$test (breakpoint not hit)"
+  }
+  -re "start_thread.*$gdb_prompt $" {
+     send_gdb "next\n"
+     exp_continue
+  }
+}
+