[Driver] Support -fsanitize=function on Solaris/x86

UBSan-Standalone-x86_64 :: TestCases/TypeCheck/Function/function.cpp currently
FAILs on Solaris/x86_64:

  clang-9: error: unsupported option '-fsanitize=function' for target 'x86_64-pc-solaris2.11'

AFAICS, there's nothing more to do then enable that sanitizer in the driver (for x86 only),
which is what this patch does, together with updating another testcase.

Tested on x86_64-pc-solaris2.11.

Differential Revision: https://reviews.llvm.org/D64488

llvm-svn: 367351

1 files changed, 3 insertions, 0 deletions

diff --git a/clang/lib/Driver/ToolChains/Solaris.cpp b/clang/lib/Driver/ToolChains/Solaris.cpp
index 38f24d4cf7e..86b9ba9542f 100644
--- a/clang/lib/Driver/ToolChains/Solaris.cpp
+++ b/clang/lib/Driver/ToolChains/Solaris.cpp
@@ -177,6 +177,7 @@ Solaris::Solaris(const Driver &D, const llvm::Triple &Triple,
 
 SanitizerMask Solaris::getSupportedSanitizers() const {
   const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
+  const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64;
   SanitizerMask Res = ToolChain::getSupportedSanitizers();
   // FIXME: Omit X86_64 until 64-bit support is figured out.
   if (IsX86) {
@@ -184,6 +185,8 @@ SanitizerMask Solaris::getSupportedSanitizers() const {
     Res |= SanitizerKind::PointerCompare;
     Res |= SanitizerKind::PointerSubtract;
   }
+  if (IsX86 || IsX86_64)
+    Res |= SanitizerKind::Function;
   Res |= SanitizerKind::Vptr;
   return Res;
 }