From: Bart Van Assche <bvanassche@acm.org>
Date: Mon, 21 Apr 2008 17:12:45 +0000 (+0000)
Subject: Make exp-drd also work on programs not linked with -lpthread.
X-Git-Tag: svn/VALGRIND_3_4_0~716
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c43ec3d6889eaeef59c74111af67dd1659ae5b66;p=thirdparty%2Fvalgrind.git

Make exp-drd also work on programs not linked with -lpthread.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7900
---

diff --git a/exp-drd/drd_clientreq.c b/exp-drd/drd_clientreq.c
index caf540a3bf..74803bdab9 100644
--- a/exp-drd/drd_clientreq.c
+++ b/exp-drd/drd_clientreq.c
@@ -167,7 +167,9 @@ static Bool drd_handle_client_request(ThreadId vg_tid, UWord* arg, UWord* ret)
     break;
 
   case VG_USERREQ__SET_PTHREADID:
-    thread_set_pthreadid(drd_tid, arg[1]);
+    // pthread_self() returns 0 for programs not linked with libpthread.so.
+    if (arg[1] != INVALID_POSIX_THREADID)
+      thread_set_pthreadid(drd_tid, arg[1]);
     break;
 
   case VG_USERREQ__SET_JOINABLE: