Hardware-assisted AddressSanitizer (clang part).
Summary:
Driver, frontend and LLVM codegen for HWASan.
A clone of ASan, basically.
Reviewers: kcc, pcc, alekseyshl
Subscribers: srhines, javed.absar, cfe-commits
Differential Revision: https://reviews.llvm.org/D40936
llvm-svn: 320232
diff --git a/clang/lib/Driver/SanitizerArgs.cpp b/clang/lib/Driver/SanitizerArgs.cpp
index 0deb313..f617d8b 100644
--- a/clang/lib/Driver/SanitizerArgs.cpp
+++ b/clang/lib/Driver/SanitizerArgs.cpp
@@ -31,9 +31,10 @@
NotAllowedWithTrap = Vptr,
NotAllowedWithMinimalRuntime = Vptr,
RequiresPIE = DataFlow | Scudo,
- NeedsUnwindTables = Address | Thread | Memory | DataFlow,
- SupportsCoverage = Address | KernelAddress | Memory | Leak | Undefined |
- Integer | Nullability | DataFlow | Fuzzer | FuzzerNoLink,
+ NeedsUnwindTables = Address | HWAddress | Thread | Memory | DataFlow,
+ SupportsCoverage = Address | HWAddress | KernelAddress | Memory | Leak |
+ Undefined | Integer | Nullability | DataFlow | Fuzzer |
+ FuzzerNoLink,
RecoverableByDefault = Undefined | Integer | Nullability,
Unrecoverable = Unreachable | Return,
LegacyFsanitizeRecoverMask = Undefined | Integer,
@@ -96,6 +97,8 @@
const char *BlacklistFile = nullptr;
if (Kinds & Address)
BlacklistFile = "asan_blacklist.txt";
+ else if (Kinds & HWAddress)
+ BlacklistFile = "hwasan_blacklist.txt";
else if (Kinds & Memory)
BlacklistFile = "msan_blacklist.txt";
else if (Kinds & Thread)
@@ -172,8 +175,8 @@
bool SanitizerArgs::needsUbsanRt() const {
// All of these include ubsan.
- if (needsAsanRt() || needsMsanRt() || needsTsanRt() || needsDfsanRt() ||
- needsLsanRt() || needsCfiDiagRt() || needsScudoRt())
+ if (needsAsanRt() || needsMsanRt() || needsHwasanRt() || needsTsanRt() ||
+ needsDfsanRt() || needsLsanRt() || needsCfiDiagRt() || needsScudoRt())
return false;
return (Sanitizers.Mask & NeedsUbsanRt & ~TrapSanitizers.Mask) ||
@@ -373,11 +376,12 @@
std::make_pair(Address, Thread | Memory),
std::make_pair(Thread, Memory),
std::make_pair(Leak, Thread | Memory),
- std::make_pair(KernelAddress, Address| Leak | Thread | Memory),
- std::make_pair(Efficiency, Address | Leak | Thread | Memory |
- KernelAddress),
- std::make_pair(Scudo, Address | Leak | Thread | Memory | KernelAddress |
- Efficiency) };
+ std::make_pair(KernelAddress, Address | Leak | Thread | Memory),
+ std::make_pair(HWAddress, Address | Thread | Memory | KernelAddress),
+ std::make_pair(Efficiency, Address | HWAddress | Leak | Thread | Memory |
+ KernelAddress),
+ std::make_pair(Scudo, Address | HWAddress | Leak | Thread | Memory |
+ KernelAddress | Efficiency)};
for (auto G : IncompatibleGroups) {
SanitizerMask Group = G.first;
if (Kinds & Group) {