From: Anna Zaks <ganna@apple.com>
Date: Wed, 24 Feb 2016 22:12:18 +0000 (+0000)
Subject: [asan] Do not instrument globals in the special "LLVM" sections
X-Git-Tag: llvmorg-3.9.0-rc1~13318
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=40148f1716b5c75f0614e502de82bf1c92fd1b4c;p=platform%2Fupstream%2Fllvm.git

[asan] Do not instrument globals in the special "LLVM" sections

llvm-svn: 261794
---

diff --git a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index 2f404fe..fff6279 100644
--- a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -1228,7 +1228,7 @@ bool AddressSanitizerModule::ShouldInstrumentGlobal(GlobalVariable *G) {
     // Globals from llvm.metadata aren't emitted, do not instrument them.
     if (Section == "llvm.metadata") return false;
     // Do not instrument globals from special LLVM sections.
-    if (Section.find("__llvm") != StringRef::npos) return false;
+    if (Section.find("__llvm") != StringRef::npos || Section.find("__LLVM") != StringRef::npos) return false;
 
     // Do not instrument function pointers to initialization and termination
     // routines: dynamic linker will not properly handle redzones.
diff --git a/llvm/test/Instrumentation/AddressSanitizer/do-not-instrument-globals-darwin.ll b/llvm/test/Instrumentation/AddressSanitizer/do-not-instrument-globals-darwin.ll
index 854f5cb..0ca8975 100644
--- a/llvm/test/Instrumentation/AddressSanitizer/do-not-instrument-globals-darwin.ll
+++ b/llvm/test/Instrumentation/AddressSanitizer/do-not-instrument-globals-darwin.ll
@@ -11,9 +11,11 @@ target triple = "x86_64-apple-macosx10.10.0"
 
 @.str_noinst = private unnamed_addr constant [4 x i8] c"aaa\00", section "llvm.metadata"
 @.str_noinst_prof = private unnamed_addr constant [4 x i8] c"aaa\00", section "__DATA,__llvm_covmap"
+@.str_noinst_LLVM = private unnamed_addr constant [4 x i8] c"aaa\00", section "__LLVM,__not_visible"
 @.str_inst = private unnamed_addr constant [4 x i8] c"aaa\00"
 
 ; CHECK-NOT: {{asan_gen.*str_noinst}}
 ; CHECK-NOT: {{asan_gen.*str_noinst_prof}}
+; CHECK-NOT: {{asan_gen.*str_noinst_LLVM}}
 ; CHECK: {{asan_gen.*str_inst}}
 ; CHECK: @asan.module_ctor