From: Tom Hughes <tom@compton.nu>
Date: Wed, 2 Jan 2008 10:07:44 +0000 (+0000)
Subject: Stop drd trying to get a backtrace when there is no stack pointer.
X-Git-Tag: svn/VALGRIND_3_4_0~1119
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=94286fd8406537af6c7183c6f1a3d86323607081;p=thirdparty%2Fvalgrind.git

Stop drd trying to get a backtrace when there is no stack pointer.

Patch from Bart Van Assche <bart.vanassche@gmail.com>.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7309
---

diff --git a/exp-drd/drd_segment.c b/exp-drd/drd_segment.c
index a83a4148f0..769f5daab6 100644
--- a/exp-drd/drd_segment.c
+++ b/exp-drd/drd_segment.c
@@ -64,7 +64,7 @@ void sg_init(Segment* const sg,
   sg->next = 0;
   sg->prev = 0;
 
-  if (vg_created != VG_INVALID_THREADID)
+  if (vg_created != VG_INVALID_THREADID && VG_(get_SP)(vg_created) != 0)
     sg->stacktrace = VG_(record_ExeContext)(vg_created, 0);
   else
     sg->stacktrace = 0;