[compiler-rt] r182477 - [asan] fix the reported PCs for powerpc64

[Kostya Serebryany]

Author: kcc
Date: Wed May 22 09:21:34 2013
New Revision: 182477

URL: http://llvm.org/viewvc/llvm-project?rev=182477&view=rev
Log:
[asan] fix the reported PCs for powerpc64

Modified:
    compiler-rt/trunk/lib/asan/asan_report.cc

Modified: compiler-rt/trunk/lib/asan/asan_report.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/asan_report.cc?rev=182477&r1=182476&r2=182477&view=diff
==============================================================================
--- compiler-rt/trunk/lib/asan/asan_report.cc (original)
+++ compiler-rt/trunk/lib/asan/asan_report.cc Wed May 22 09:21:34 2013
@@ -273,6 +273,14 @@ bool DescribeAddressIfStack(uptr addr, u
   uptr frame_pc = 0;
   char tname[128];
   const char *frame_descr = t->GetFrameNameByAddr(addr, &offset, &frame_pc);
+
+#ifdef __powerpc64__
+  // On PowerPC64, the address of a function actually points to a
+  // three-doubleword data structure with the first field containing
+  // the address of the function's code.
+  frame_pc = *reinterpret_cast<uptr *>(frame_pc);
+#endif
+
   // This string is created by the compiler and has the following form:
   // "n alloc_1 alloc_2 ... alloc_n"
   // where alloc_i looks like "offset size len ObjectName ".