From aceaf3add3eb92dbcf2cb0b268baf1940aab6205 Mon Sep 17 00:00:00 2001
From: Jim Blandy <jimb@codesourcery.com>
Date: Tue, 29 Jan 2008 19:20:52 +0000
Subject: * gdb.threads/sigthread.c: Use barriers to ensure that child_thread
and child_thread_two are always initialized before we start to use them.
---
gdb/testsuite/ChangeLog | 6 ++++++
gdb/testsuite/gdb.threads/sigthread.c | 10 ++++++++++
2 files changed, 16 insertions(+)
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index a5d5920..55e0bc8 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2008-01-29 Jim Blandy <jimb@red-bean.com>
+
+ * gdb.threads/sigthread.c: Use barriers to ensure that
+ child_thread and child_thread_two are always initialized before we
+ start to use them.
+
2008-01-29 Vladimir Prus <vladimir@codesourcery.com>
* gdb.base/watchpoint-solib.exp: New.
diff --git a/gdb/testsuite/gdb.threads/sigthread.c b/gdb/testsuite/gdb.threads/sigthread.c
index 131d96a..b5233bc 100644
--- a/gdb/testsuite/gdb.threads/sigthread.c
+++ b/gdb/testsuite/gdb.threads/sigthread.c
@@ -20,6 +20,8 @@
testing. */
#define NSIGS 10000000
+pthread_barrier_t barrier;
+
void
handler (int sig)
{
@@ -34,6 +36,8 @@ child_two (void *arg)
{
int i;
+ pthread_barrier_wait (&barrier);
+
for (i = 0; i < NSIGS; i++)
pthread_kill (child_thread, SIGUSR1);
}
@@ -43,6 +47,8 @@ thread_function (void *arg)
{
int i;
+ pthread_barrier_wait (&barrier);
+
for (i = 0; i < NSIGS; i++)
pthread_kill (child_thread_two, SIGUSR2);
}
@@ -54,10 +60,14 @@ int main()
signal (SIGUSR1, handler);
signal (SIGUSR2, handler);
+ pthread_barrier_init (&barrier, NULL, 3);
+
main_thread = pthread_self ();
pthread_create (&child_thread, NULL, thread_function, NULL);
pthread_create (&child_thread_two, NULL, child_two, NULL);
+ pthread_barrier_wait (&barrier);
+
for (i = 0; i < NSIGS; i++)
pthread_kill (child_thread_two, SIGUSR1);
--
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