* breakpoint.c: (watch_command_1): Parse additional optional

      "thread" parameter to the watchpoint command and set the
      "thread" member of the breakpoint struct.
      * doc/gdb.texinfo: Add new parameter's description.
      * testsuite/gdb.base/watch_thread_num.c: New testcase source file.
      * testsuite/gdb.base/watch_thread_num.exp: New testcase expect file.

3 files changed, 132 insertions, 0 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 9129aa9..22eaae0 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2007-12-17  Luis Machado  <luisgpm@br.ibm.com>
+
+	* testsuite/gdb.base/watch_thread_num.c: New testcase source file.
+	* testsuite/gdb.base/watch_thread_num.exp: New testcase expect file.
+
 2007-12-17  Joel Brobecker  <brobecker@adacore.com>
 
 	* gdb.ada/frame_args/foo.adb: New file.
diff --git a/gdb/testsuite/gdb.base/watch_thread_num.c b/gdb/testsuite/gdb.base/watch_thread_num.c
new file mode 100644
index 0000000..ab739cd
--- /dev/null
+++ b/gdb/testsuite/gdb.base/watch_thread_num.c
@@ -0,0 +1,63 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2002, 2003, 2004, 2007 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.
+
+   This file is copied from schedlock.c.  */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+void *thread_function (void *arg); /* Pointer to function executed by each thread */
+
+#define NUM 5
+
+static unsigned int shared_var = 1;
+
+int main () {
+    int res;
+    pthread_t threads[NUM];
+    void *thread_result;
+    long i;
+
+    for (i = 0; i < NUM; i++)
+      {
+        res = pthread_create (&threads[i],
+                             NULL,
+                             thread_function,
+			     (void *) i);
+      }
+
+    thread_result = thread_function ((void *) i);
+
+    exit (EXIT_SUCCESS);
+}
+
+void *thread_function (void *arg) {
+    int my_number = (long) arg;
+    /* Don't run forever.  Run just short of it :)  */
+    while (shared_var > 0)
+      {
+        shared_var++;
+	usleep (1); /* Loop increment.  */
+      }
+
+    pthread_exit (NULL);
+}
+
diff --git a/gdb/testsuite/gdb.base/watch_thread_num.exp b/gdb/testsuite/gdb.base/watch_thread_num.exp
new file mode 100644
index 0000000..d5114ef
--- /dev/null
+++ b/gdb/testsuite/gdb.base/watch_thread_num.exp
@@ -0,0 +1,64 @@
+# This testcase is part of GDB, the GNU debugger.
+
+# Copyright 2007
+# 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 3 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, see <http://www.gnu.org/licenses/>.  */
+
+# watch-thread_num.exp   Test thread <thread_num> parameter for
+#                        watch commands.
+#
+
+if $tracelevel then {
+	strace $tracelevel
+}
+
+set testfile watch_thread_num
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+
+# What compiler are we using?
+#
+if [get_compiler_info ${binfile}] {
+    return -1
+}
+
+if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug libs=-lpthread}] != "" } {
+     untested watch_thread_num.exp
+     return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+if { ![runto main] } then {
+   fail "run to main"
+   return
+}
+
+gdb_test "watch shared_var thread 0" "Unknown thread 0\." "Watchpoint on invalid thread"
+gdb_test "watch shared_var thread" "A syntax error in expression, near `thread'\." "Invalid watch syntax"
+
+gdb_test "Next 5" ""
+
+gdb_test "watch shared_var thread 2" "Hardware watchpoint 2: shared_var" "Watchpoint on shared variable"
+gdb_test "info breakpoint 2" "stop only in thread 2"
+
+for {set i 0} {$i < 10} {incr i 1} {
+gdb_test "continue" "Hardware watchpoint 2: shared_var.*" "Watchpoint triggered"
+gdb_test "thread" "\\\[Current thread is 2 \\\(Thread $hex \\\(LWP $decimal\\\)\\\)\\\]" "Check thread that triggered"
+}
+