diff options
Diffstat (limited to 'clang/lib/Driver/SanitizerArgs.cpp')
| -rw-r--r-- | clang/lib/Driver/SanitizerArgs.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/clang/lib/Driver/SanitizerArgs.cpp b/clang/lib/Driver/SanitizerArgs.cpp index 50a93a8d431..c63ff4be8a7 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 { @@ -681,6 +682,16 @@ void SanitizerArgs::addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, TC.getCompilerRT(Args, "stats"))); addIncludeLinkerOption(TC, Args, CmdArgs, "__sanitizer_stats_register"); } + + // Require -fvisibility= flag on non-Windows when compiling if vptr CFI is + // enabled. + if (Sanitizers.hasOneOf(CFIClasses) && !TC.getTriple().isOSWindows() && + !Args.hasArg(options::OPT_fvisibility_EQ)) { + TC.getDriver().Diag(clang::diag::err_drv_argument_only_allowed_with) + << lastArgumentForMask(TC.getDriver(), Args, + Sanitizers.Mask & CFIClasses) + << "-fvisibility="; + } } SanitizerMask parseArgValues(const Driver &D, const llvm::opt::Arg *A, |
