diff options
Diffstat (limited to 'clang/lib/Driver/SanitizerArgs.cpp')
| -rw-r--r-- | clang/lib/Driver/SanitizerArgs.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/clang/lib/Driver/SanitizerArgs.cpp b/clang/lib/Driver/SanitizerArgs.cpp index 50a93a8d431..6f19a2fa96b 100644 --- a/clang/lib/Driver/SanitizerArgs.cpp +++ b/clang/lib/Driver/SanitizerArgs.cpp @@ -39,6 +39,7 @@ enum : SanitizerMask { TrappingSupported = (Undefined & ~Vptr) | UnsignedIntegerOverflow | LocalBounds | CFI, TrappingDefault = CFI, + CFIClasses = CFIVCall | CFINVCall | CFIDerivedCast | CFIUnrelatedCast, }; enum CoverageFeature { @@ -560,6 +561,14 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC, LinkCXXRuntimes = Args.hasArg(options::OPT_fsanitize_link_cxx_runtime) || D.CCCIsCXX(); + // Require -fvisibility= flag on non-Windows if vptr CFI is enabled. + if ((Kinds & CFIClasses) && !TC.getTriple().isOSWindows() && + !Args.hasArg(options::OPT_fvisibility_EQ)) { + D.Diag(clang::diag::err_drv_argument_only_allowed_with) + << lastArgumentForMask(D, Args, Kinds & CFIClasses) + << "-fvisibility="; + } + // Finally, initialize the set of available and recoverable sanitizers. Sanitizers.Mask |= Kinds; RecoverableSanitizers.Mask |= RecoverableKinds; |
