diff options
| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2017-12-09 00:21:41 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2017-12-09 00:21:41 +0000 |
| commit | d47b5b3974ad5248be58396668c9b25bf50cb1df (patch) | |
| tree | c658bfb00c9b19f24375a6ad9946fca2a72d27a6 /lib/Bitcode | |
| parent | 39737bf2bbfc38ecca3e4fcf91b27639c18a8f4c (diff) | |
Hardware-assisted AddressSanitizer (llvm part).
Summary:
This is LLVM instrumentation for the new HWASan tool. It is basically
a stripped down copy of ASan at this point, w/o stack or global
support. Instrumenation adds a global constructor + runtime callbacks
for every load and store.
HWASan comes with its own IR attribute.
A brief design document can be found in
clang/docs/HardwareAssistedAddressSanitizerDesign.rst (submitted earlier).
Reviewers: kcc, pcc, alekseyshl
Subscribers: srhines, mehdi_amini, mgorny, javed.absar, eraman, llvm-commits, hiraditya
Differential Revision: https://reviews.llvm.org/D40932
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320217 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Bitcode')
| -rw-r--r-- | lib/Bitcode/Reader/BitcodeReader.cpp | 3 | ||||
| -rw-r--r-- | lib/Bitcode/Writer/BitcodeWriter.cpp | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp index 0b03d0062d9..eafe911ed87 100644 --- a/lib/Bitcode/Reader/BitcodeReader.cpp +++ b/lib/Bitcode/Reader/BitcodeReader.cpp @@ -1156,6 +1156,7 @@ static uint64_t getRawAttributeMask(Attribute::AttrKind Val) { case Attribute::WriteOnly: return 1ULL << 53; case Attribute::Speculatable: return 1ULL << 54; case Attribute::StrictFP: return 1ULL << 55; + case Attribute::SanitizeHWAddress: return 1ULL << 56; case Attribute::Dereferenceable: llvm_unreachable("dereferenceable attribute not supported in raw format"); break; @@ -1368,6 +1369,8 @@ static Attribute::AttrKind getAttrFromCode(uint64_t Code) { return Attribute::StructRet; case bitc::ATTR_KIND_SANITIZE_ADDRESS: return Attribute::SanitizeAddress; + case bitc::ATTR_KIND_SANITIZE_HWADDRESS: + return Attribute::SanitizeHWAddress; case bitc::ATTR_KIND_SANITIZE_THREAD: return Attribute::SanitizeThread; case bitc::ATTR_KIND_SANITIZE_MEMORY: diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp index 03a77c9734e..b16d7cc0750 100644 --- a/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -663,6 +663,8 @@ static uint64_t getAttrKindEncoding(Attribute::AttrKind Kind) { return bitc::ATTR_KIND_STRUCT_RET; case Attribute::SanitizeAddress: return bitc::ATTR_KIND_SANITIZE_ADDRESS; + case Attribute::SanitizeHWAddress: + return bitc::ATTR_KIND_SANITIZE_HWADDRESS; case Attribute::SanitizeThread: return bitc::ATTR_KIND_SANITIZE_THREAD; case Attribute::SanitizeMemory: |