diff options
| author | Alexey Samsonov <samsonov@google.com> | 2013-01-20 13:12:12 +0000 |
|---|---|---|
| committer | Alexey Samsonov <samsonov@google.com> | 2013-01-20 13:12:12 +0000 |
| commit | 4bdc60434c79126b75aee2bb391275f3bb746364 (patch) | |
| tree | f2931c50070d8b6a1153aae4564d45f112c87acc /lib/CodeGen/BackendUtil.cpp | |
| parent | e6b9d802fb7b16d93474c4f1c179ab36202e8a8b (diff) | |
Add top-level Clang flag -f(no-)sanitize-address-zero-base-shadow that makes AddressSanitizer use bottom of the address space for the shadow memory. On Linux it can be used with -fPIE/-pie to improve performance.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172974 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/BackendUtil.cpp')
| -rw-r--r-- | lib/CodeGen/BackendUtil.cpp | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp index 8a3ee398cd..b938aacf1f 100644 --- a/lib/CodeGen/BackendUtil.cpp +++ b/lib/CodeGen/BackendUtil.cpp @@ -164,12 +164,16 @@ static void addAddressSanitizerPasses(const PassManagerBuilder &Builder, static_cast<const PassManagerBuilderWrapper&>(Builder); const CodeGenOptions &CGOpts = BuilderWrapper.getCGOpts(); const LangOptions &LangOpts = BuilderWrapper.getLangOpts(); - PM.add(createAddressSanitizerFunctionPass(LangOpts.Sanitize.InitOrder, - LangOpts.Sanitize.UseAfterReturn, - LangOpts.Sanitize.UseAfterScope, - CGOpts.SanitizerBlacklistFile)); - PM.add(createAddressSanitizerModulePass(LangOpts.Sanitize.InitOrder, - CGOpts.SanitizerBlacklistFile)); + PM.add(createAddressSanitizerFunctionPass( + LangOpts.Sanitize.InitOrder, + LangOpts.Sanitize.UseAfterReturn, + LangOpts.Sanitize.UseAfterScope, + CGOpts.SanitizerBlacklistFile, + CGOpts.SanitizeAddressZeroBaseShadow)); + PM.add(createAddressSanitizerModulePass( + LangOpts.Sanitize.InitOrder, + CGOpts.SanitizerBlacklistFile, + CGOpts.SanitizeAddressZeroBaseShadow)); } static void addMemorySanitizerPass(const PassManagerBuilder &Builder, @@ -177,7 +181,7 @@ static void addMemorySanitizerPass(const PassManagerBuilder &Builder, const PassManagerBuilderWrapper &BuilderWrapper = static_cast<const PassManagerBuilderWrapper&>(Builder); const CodeGenOptions &CGOpts = BuilderWrapper.getCGOpts(); - PM.add(createMemorySanitizerPass(CGOpts.MemorySanitizerTrackOrigins, + PM.add(createMemorySanitizerPass(CGOpts.SanitizeMemoryTrackOrigins, CGOpts.SanitizerBlacklistFile)); } |