From 5b2d43008240767872d0fe4913b3e5b784954e43 Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Fri, 15 Nov 2013 10:25:53 +0000
Subject: [PATCH] tsan: add proper cfi directives to assembly code this allows
 gdb to unwind through our hacky call

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@194803 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/tsan/rtl/tsan_rtl.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/tsan/rtl/tsan_rtl.h b/lib/tsan/rtl/tsan_rtl.h
index 14d97df40..4d17f3ae4 100644
--- a/lib/tsan/rtl/tsan_rtl.h
+++ b/lib/tsan/rtl/tsan_rtl.h
@@ -727,11 +727,11 @@ void AcquireReleaseImpl(ThreadState *thr, uptr pc, SyncClock *c);
 // so we create a reserve stack frame for it (1024b must be enough).
 #define HACKY_CALL(f) \
   __asm__ __volatile__("sub $1024, %%rsp;" \
-                       "/*.cfi_adjust_cfa_offset 1024;*/" \
+                       ".cfi_adjust_cfa_offset 1024;" \
                        ".hidden " #f "_thunk;" \
                        "call " #f "_thunk;" \
                        "add $1024, %%rsp;" \
-                       "/*.cfi_adjust_cfa_offset -1024;*/" \
+                       ".cfi_adjust_cfa_offset -1024;" \
                        ::: "memory", "cc");
 #else
 #define HACKY_CALL(f) f()
-- 
2.11.4.GIT