diff options
Diffstat (limited to 'clang/lib/Driver/SanitizerArgs.cpp')
| -rw-r--r-- | clang/lib/Driver/SanitizerArgs.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/clang/lib/Driver/SanitizerArgs.cpp b/clang/lib/Driver/SanitizerArgs.cpp index 70dbc5fcb29..b2dbcc43a6c 100644 --- a/clang/lib/Driver/SanitizerArgs.cpp +++ b/clang/lib/Driver/SanitizerArgs.cpp @@ -18,6 +18,7 @@ #include "llvm/Support/FileSystem.h" #include "llvm/Support/Path.h" #include "llvm/Support/SpecialCaseList.h" +#include "llvm/Support/TargetParser.h" #include <memory> using namespace clang; @@ -375,6 +376,15 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC, << lastArgumentForMask(D, Args, Kinds & NeedsLTO) << "-flto"; } + if ((Kinds & ShadowCallStack) && + TC.getTriple().getArch() == llvm::Triple::aarch64 && + !llvm::AArch64::isX18ReservedByDefault(TC.getTriple()) && + !Args.hasArg(options::OPT_ffixed_x18)) { + D.Diag(diag::err_drv_argument_only_allowed_with) + << lastArgumentForMask(D, Args, Kinds & ShadowCallStack) + << "-ffixed-x18"; + } + // Report error if there are non-trapping sanitizers that require // c++abi-specific parts of UBSan runtime, and they are not provided by the // toolchain. We don't have a good way to check the latter, so we just |
