1 files changed, 34 insertions, 0 deletions
diff --git a/clang/lib/Basic/Targets/OSTargets.h b/clang/lib/Basic/Targets/OSTargets.h
index 3919164bf9a..519a35b06f9 100644
--- a/clang/lib/Basic/Targets/OSTargets.h
+++ b/clang/lib/Basic/Targets/OSTargets.h
@@ -495,6 +495,40 @@ public:
   }
 };
 
+// RTEMS Target
+template <typename Target>
+class LLVM_LIBRARY_VISIBILITY RTEMSTargetInfo : public OSTargetInfo<Target> {
+protected:
+  void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
+                    MacroBuilder &Builder) const override {
+    // RTEMS defines; list based off of gcc output
+
+    Builder.defineMacro("__rtems__");
+    Builder.defineMacro("__ELF__");
+  }
+
+public:
+  RTEMSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
+      : OSTargetInfo<Target>(Triple, Opts) {
+    switch (Triple.getArch()) {
+    default:
+    case llvm::Triple::x86:
+      // this->MCountName = ".mcount";
+      break;
+    case llvm::Triple::mips:
+    case llvm::Triple::mipsel:
+    case llvm::Triple::ppc:
+    case llvm::Triple::ppc64:
+    case llvm::Triple::ppc64le:
+      // this->MCountName = "_mcount";
+      break;
+    case llvm::Triple::arm:
+      // this->MCountName = "__mcount";
+      break;
+    }
+  }
+};
+
 // Solaris target
 template <typename Target>
 class LLVM_LIBRARY_VISIBILITY SolarisTargetInfo : public OSTargetInfo<Target> {