[Driver] Disable -fsanitize=function for all MachO (except x86)

Some embedded platforms don't fall into the Darwin category.

Author: Francis Visoiu Mistrih

clang/lib/Driver/SanitizerArgs.cpp

@@ -570,7 +570,7 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC,
 
   Kinds |= Default;
 
-  if (TC.getTriple().isOSDarwin() && !TC.getTriple().isX86())
+  if (TC.getTriple().isOSBinFormatMachO() && !TC.getTriple().isX86())
     Kinds &= ~SanitizerKind::Function;
 
   // We disable the vptr sanitizer if it was enabled by group expansion but RTTI

clang/test/CodeGen/ubsan-function.cpp

@@ -3,6 +3,8 @@
 // RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,GNU,64
 // RUN: %clang_cc1 -triple aarch64_be-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,GNU,64
 // RUN: %clang_cc1 -triple arm-none-eabi -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,ARM,GNU,32
+// RUN: %clang_cc1 -triple apple-macosx-x86_64 -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,64
+
 
 // GNU:  define{{.*}} void @_Z3funv() #0 !func_sanitize ![[FUNCSAN:.*]] {
 // MSVC: define{{.*}} void @"?fun@@YAXXZ"() #0 !func_sanitize ![[FUNCSAN:.*]] {