1 files changed, 59 insertions, 0 deletions
diff --git a/llvm/lib/Target/MSP430/MCTargetDesc/MSP430ELFObjectWriter.cpp b/llvm/lib/Target/MSP430/MCTargetDesc/MSP430ELFObjectWriter.cpp
new file mode 100644
index 00000000000..30d077b5b58
--- /dev/null
+++ b/llvm/lib/Target/MSP430/MCTargetDesc/MSP430ELFObjectWriter.cpp
@@ -0,0 +1,59 @@
+//===-- MSP430ELFObjectWriter.cpp - MSP430 ELF Writer ---------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "MCTargetDesc/MSP430FixupKinds.h"
+#include "MCTargetDesc/MSP430MCTargetDesc.h"
+
+#include "MCTargetDesc/MSP430MCTargetDesc.h"
+#include "llvm/MC/MCELFObjectWriter.h"
+#include "llvm/MC/MCFixup.h"
+#include "llvm/MC/MCObjectWriter.h"
+#include "llvm/MC/MCValue.h"
+#include "llvm/Support/ErrorHandling.h"
+
+using namespace llvm;
+
+namespace {
+class MSP430ELFObjectWriter : public MCELFObjectTargetWriter {
+public:
+  MSP430ELFObjectWriter(uint8_t OSABI)
+    : MCELFObjectTargetWriter(false, OSABI, ELF::EM_MSP430,
+                              /*HasRelocationAddend*/ true) {}
+
+  ~MSP430ELFObjectWriter() override {}
+
+protected:
+  unsigned getRelocType(MCContext &Ctx, const MCValue &Target,
+                        const MCFixup &Fixup, bool IsPCRel) const override {
+    // Translate fixup kind to ELF relocation type.
+    switch ((unsigned)Fixup.getKind()) {
+    case FK_Data_1:                   return ELF::R_MSP430_8;
+    case FK_Data_2:                   return ELF::R_MSP430_16;
+    case FK_Data_4:                   return ELF::R_MSP430_32;
+    case MSP430::fixup_32:            return ELF::R_MSP430_32;
+    case MSP430::fixup_10_pcrel:      return ELF::R_MSP430_10_PCREL;
+    case MSP430::fixup_16:            return ELF::R_MSP430_16;
+    case MSP430::fixup_16_pcrel:      return ELF::R_MSP430_16_PCREL;
+    case MSP430::fixup_16_byte:       return ELF::R_MSP430_16_BYTE;
+    case MSP430::fixup_16_pcrel_byte: return ELF::R_MSP430_16_PCREL_BYTE;
+    case MSP430::fixup_2x_pcrel:      return ELF::R_MSP430_2X_PCREL;
+    case MSP430::fixup_rl_pcrel:      return ELF::R_MSP430_RL_PCREL;
+    case MSP430::fixup_8:             return ELF::R_MSP430_8;
+    case MSP430::fixup_sym_diff:      return ELF::R_MSP430_SYM_DIFF;
+    default:
+      llvm_unreachable("Invalid fixup kind");
+    }
+  }
+};
+} // end of anonymous namespace
+
+std::unique_ptr<MCObjectTargetWriter>
+llvm::createMSP430ELFObjectWriter(uint8_t OSABI) {
+  return llvm::make_unique<MSP430ELFObjectWriter>(OSABI);
+}