Author: sewardj
Date: 2008-03-04 01:53:35 +0000 (Tue, 04 Mar 2008)
New Revision: 7554
Log:
Ignore race errors in PLT sections (Konstantin Serebryany)
Modified:
branches/HGDEV/helgrind/hg_main.c
Modified: branches/HGDEV/helgrind/hg_main.c
===================================================================
--- branches/HGDEV/helgrind/hg_main.c 2008-03-04 00:41:29 UTC (rev 7553)
+++ branches/HGDEV/helgrind/hg_main.c 2008-03-04 01:53:35 UTC (rev 7554)
@@ -7685,6 +7685,21 @@
tl_assert(isWrite == False || isWrite == True);
tl_assert(szB == 8 || szB == 4 || szB == 2 || szB == 1);
+ /* If the PC is in something that looks like a PLT section, ignore
+ any reported races. It appears that ld.so does intentionally
+ racey things in PLTs and it's simplest just to ignore it. */
+ if (1) {
+ ThreadId tid = map_threads_maybe_reverse_lookup_SLOW(thr);
+ if (tid != VG_INVALID_THREADID) {
+ Addr ip_at_error = VG_(get_IP)( tid );
+ if (VG_(seginfo_sect_kind)(NULL, 0, ip_at_error) == Vg_SectPLT) {
+ /* ignore this race. */
+ return;
+ }
+ }
+ }
+
+ /* Ok, so we're really going to collect this race. */
tl_assert(sizeof(xe.XE.Race.descr1) == sizeof(xe.XE.Race.descr2));
xe.XE.Race.descr1[0] = xe.XE.Race.descr2[0] = 0;
if (VG_(get_data_description)(
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