diff options
Diffstat (limited to 'lib/Driver/SanitizerArgs.cpp')
| -rw-r--r-- | lib/Driver/SanitizerArgs.cpp | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/lib/Driver/SanitizerArgs.cpp b/lib/Driver/SanitizerArgs.cpp index 6b6a9feec42c..cc6c5e6ef438 100644 --- a/lib/Driver/SanitizerArgs.cpp +++ b/lib/Driver/SanitizerArgs.cpp @@ -46,7 +46,8 @@ static const SanitizerMask SupportsCoverage = SanitizerKind::Undefined | SanitizerKind::Integer | SanitizerKind::ImplicitConversion | SanitizerKind::Nullability | SanitizerKind::DataFlow | SanitizerKind::Fuzzer | - SanitizerKind::FuzzerNoLink | SanitizerKind::FloatDivideByZero; + SanitizerKind::FuzzerNoLink | SanitizerKind::FloatDivideByZero | + SanitizerKind::SafeStack | SanitizerKind::ShadowCallStack; static const SanitizerMask RecoverableByDefault = SanitizerKind::Undefined | SanitizerKind::Integer | SanitizerKind::ImplicitConversion | SanitizerKind::Nullability | @@ -635,6 +636,10 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC, D.Diag(diag::err_drv_argument_not_allowed_with) << "-fsanitize-cfi-cross-dso" << "-fsanitize-cfi-icall-generalize-pointers"; + + CfiCanonicalJumpTables = + Args.hasFlag(options::OPT_fsanitize_cfi_canonical_jump_tables, + options::OPT_fno_sanitize_cfi_canonical_jump_tables, true); } Stats = Args.hasFlag(options::OPT_fsanitize_stats, @@ -824,9 +829,15 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC, SafeStackRuntime = !TC.getTriple().isOSFuchsia(); } + LinkRuntimes = + Args.hasFlag(options::OPT_fsanitize_link_runtime, + options::OPT_fno_sanitize_link_runtime, LinkRuntimes); + // Parse -link-cxx-sanitizer flag. - LinkCXXRuntimes = - Args.hasArg(options::OPT_fsanitize_link_cxx_runtime) || D.CCCIsCXX(); + LinkCXXRuntimes = Args.hasArg(options::OPT_fsanitize_link_cxx_runtime, + options::OPT_fno_sanitize_link_cxx_runtime, + LinkCXXRuntimes) || + D.CCCIsCXX(); // Finally, initialize the set of available and recoverable sanitizers. Sanitizers.Mask |= Kinds; @@ -862,6 +873,18 @@ static void addIncludeLinkerOption(const ToolChain &TC, CmdArgs.push_back(Args.MakeArgString(LinkerOptionFlag)); } +static bool hasTargetFeatureMTE(const llvm::opt::ArgStringList &CmdArgs) { + for (auto Start = CmdArgs.begin(), End = CmdArgs.end(); Start != End; ++Start) { + auto It = std::find(Start, End, StringRef("+mte")); + if (It == End) + break; + if (It > Start && *std::prev(It) == StringRef("-target-feature")) + return true; + Start = It; + } + return false; +} + void SanitizerArgs::addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, types::ID InputType) const { @@ -969,6 +992,9 @@ void SanitizerArgs::addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, if (CfiICallGeneralizePointers) CmdArgs.push_back("-fsanitize-cfi-icall-generalize-pointers"); + if (CfiCanonicalJumpTables) + CmdArgs.push_back("-fsanitize-cfi-canonical-jump-tables"); + if (Stats) CmdArgs.push_back("-fsanitize-stats"); @@ -1006,6 +1032,11 @@ void SanitizerArgs::addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, CmdArgs.push_back(Args.MakeArgString("hwasan-abi=" + HwasanAbi)); } + if (Sanitizers.has(SanitizerKind::HWAddress)) { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("+tagged-globals"); + } + // MSan: Workaround for PR16386. // ASan: This is mainly to help LSan with cases such as // https://github.com/google/sanitizers/issues/373 @@ -1024,6 +1055,9 @@ void SanitizerArgs::addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, Sanitizers.Mask & CFIClasses) << "-fvisibility="; } + + if (Sanitizers.has(SanitizerKind::MemTag) && !hasTargetFeatureMTE(CmdArgs)) + TC.getDriver().Diag(diag::err_stack_tagging_requires_hardware_feature); } SanitizerMask parseArgValues(const Driver &D, const llvm::opt::Arg *A, |