From b5b86d263a651566cb25c0f406f75ceffb771029 Mon Sep 17 00:00:00 2001
From: Kostya Serebryany <kcc@google.com>
Date: Fri, 24 Aug 2012 16:44:47 +0000
Subject: [asan/tsan] rename FunctionBlackList* to BlackList* as this class is
 not limited to functions any more

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162566 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Instrumentation/BlackList.cpp | 98 ++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 lib/Transforms/Instrumentation/BlackList.cpp

(limited to 'lib/Transforms/Instrumentation/BlackList.cpp')

diff --git a/lib/Transforms/Instrumentation/BlackList.cpp b/lib/Transforms/Instrumentation/BlackList.cpp
new file mode 100644
index 0000000..ecfe954
--- /dev/null
+++ b/lib/Transforms/Instrumentation/BlackList.cpp
@@ -0,0 +1,98 @@
+//===-- BlackList.cpp - blacklist for sanitizers --------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This is a utility class for instrumentation passes (like AddressSanitizer
+// or ThreadSanitizer) to avoid instrumenting some functions or global
+// variables based on a user-supplied blacklist.
+//
+//===----------------------------------------------------------------------===//
+
+#include <utility>
+#include <string>
+
+#include "BlackList.h"
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/Function.h"
+#include "llvm/GlobalVariable.h"
+#include "llvm/Module.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/Regex.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/system_error.h"
+
+namespace llvm {
+
+BlackList::BlackList(const StringRef Path) {
+  // Validate and open blacklist file.
+  if (!Path.size()) return;
+  OwningPtr<MemoryBuffer> File;
+  if (error_code EC = MemoryBuffer::getFile(Path, File)) {
+    report_fatal_error("Can't open blacklist file: " + Path + ": " +
+                       EC.message());
+  }
+
+  // Iterate through each line in the blacklist file.
+  SmallVector<StringRef, 16> Lines;
+  SplitString(File.take()->getBuffer(), Lines, "\n\r");
+  StringMap<std::string> Regexps;
+  for (SmallVector<StringRef, 16>::iterator I = Lines.begin(), E = Lines.end();
+       I != E; ++I) {
+    // Get our prefix and unparsed regexp.
+    std::pair<StringRef, StringRef> SplitLine = I->split(":");
+    StringRef Prefix = SplitLine.first;
+    std::string Regexp = SplitLine.second;
+
+    // Replace * with .*
+    for (size_t pos = 0; (pos = Regexp.find("*", pos)) != std::string::npos;
+         pos += strlen(".*")) {
+      Regexp.replace(pos, strlen("*"), ".*");
+    }
+
+    // Check that the regexp is valid.
+    Regex CheckRE(Regexp);
+    std::string Error;
+    if (!CheckRE.isValid(Error)) {
+      report_fatal_error("malformed blacklist regex: " + SplitLine.second +
+          ": " + Error);
+    }
+
+    // Add this regexp into the proper group by its prefix.
+    if (Regexps[Prefix].size())
+      Regexps[Prefix] += "|";
+    Regexps[Prefix] += Regexp;
+  }
+
+  // Iterate through each of the prefixes, and create Regexs for them.
+  for (StringMap<std::string>::iterator I = Regexps.begin(), E = Regexps.end();
+       I != E; ++I) {
+    Entries[I->getKey()] = new Regex(I->getValue());
+  }
+}
+
+bool BlackList::isIn(const Function &F) {
+  return isIn(*F.getParent()) || inSection("fun", F.getName());
+}
+
+bool BlackList::isIn(const GlobalVariable &G) {
+  return isIn(*G.getParent()) || inSection("global", G.getName());
+}
+
+bool BlackList::isIn(const Module &M) {
+  return inSection("src", M.getModuleIdentifier());
+}
+
+bool BlackList::inSection(const StringRef Section,
+                                  const StringRef Query) {
+  Regex *FunctionRegex = Entries[Section];
+  return FunctionRegex ? FunctionRegex->match(Query) : false;
+}
+
+}  // namespace llvm
-- 
cgit v1.1


From 59a4a47a7bea7cc17877c6a3954ad9f8309ff1cb Mon Sep 17 00:00:00 2001
From: Kostya Serebryany <kcc@google.com>
Date: Wed, 5 Sep 2012 07:29:56 +0000
Subject: [asan] extend the blacklist functionality to handle global-init.
 Patch by Reid Watson

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163199 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Instrumentation/BlackList.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lib/Transforms/Instrumentation/BlackList.cpp')

diff --git a/lib/Transforms/Instrumentation/BlackList.cpp b/lib/Transforms/Instrumentation/BlackList.cpp
index ecfe954..2cb1199 100644
--- a/lib/Transforms/Instrumentation/BlackList.cpp
+++ b/lib/Transforms/Instrumentation/BlackList.cpp
@@ -89,6 +89,10 @@ bool BlackList::isIn(const Module &M) {
   return inSection("src", M.getModuleIdentifier());
 }
 
+bool BlackList::isInInit(const GlobalVariable &G) {
+  return isIn(*G.getParent()) || inSection("global-init", G.getName());
+}
+
 bool BlackList::inSection(const StringRef Section,
                                   const StringRef Query) {
   Regex *FunctionRegex = Entries[Section];
-- 
cgit v1.1