Move PPC bits to lib/Target/PowerPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147124 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp b/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp
new file mode 100644
index 0000000..90f674d
--- /dev/null
+++ b/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp
@@ -0,0 +1,103 @@
+//===-- PPCELFObjectWriter.cpp - PPC 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/PPCFixupKinds.h"
+#include "MCTargetDesc/PPCMCTargetDesc.h"
+#include "llvm/MC/MCELFObjectWriter.h"
+#include "llvm/Support/ErrorHandling.h"
+
+using namespace llvm;
+
+namespace {
+ class PPCELFObjectWriter : public MCELFObjectTargetWriter {
+ public:
+ PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI);
+
+ virtual ~PPCELFObjectWriter();
+ protected:
+ virtual unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
+ bool IsPCRel, bool IsRelocWithSymbol,
+ int64_t Addend) const;
+ virtual void adjustFixupOffset(const MCFixup &Fixup, uint64_t &RelocOffset);
+ };
+}
+
+PPCELFObjectWriter::PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI)
+ : MCELFObjectTargetWriter(Is64Bit, OSABI,
+ Is64Bit ? ELF::EM_PPC64 : ELF::EM_PPC,
+ /*HasRelocationAddend*/ false) {}
+
+PPCELFObjectWriter::~PPCELFObjectWriter() {
+}
+
+unsigned PPCELFObjectWriter::GetRelocType(const MCValue &Target,
+ const MCFixup &Fixup,
+ bool IsPCRel,
+ bool IsRelocWithSymbol,
+ int64_t Addend) const {
+ // determine the type of the relocation
+ unsigned Type;
+ if (IsPCRel) {
+ switch ((unsigned)Fixup.getKind()) {
+ default:
+ llvm_unreachable("Unimplemented");
+ case PPC::fixup_ppc_br24:
+ Type = ELF::R_PPC_REL24;
+ break;
+ case FK_PCRel_4:
+ Type = ELF::R_PPC_REL32;
+ break;
+ }
+ } else {
+ switch ((unsigned)Fixup.getKind()) {
+ default: llvm_unreachable("invalid fixup kind!");
+ case PPC::fixup_ppc_br24:
+ Type = ELF::R_PPC_ADDR24;
+ break;
+ case PPC::fixup_ppc_brcond14:
+ Type = ELF::R_PPC_ADDR14_BRTAKEN; // XXX: or BRNTAKEN?_
+ break;
+ case PPC::fixup_ppc_ha16:
+ Type = ELF::R_PPC_ADDR16_HA;
+ break;
+ case PPC::fixup_ppc_lo16:
+ Type = ELF::R_PPC_ADDR16_LO;
+ break;
+ case PPC::fixup_ppc_lo14:
+ Type = ELF::R_PPC_ADDR14;
+ break;
+ case FK_Data_4:
+ Type = ELF::R_PPC_ADDR32;
+ break;
+ case FK_Data_2:
+ Type = ELF::R_PPC_ADDR16;
+ break;
+ }
+ }
+ return Type;
+}
+
+void PPCELFObjectWriter::
+adjustFixupOffset(const MCFixup &Fixup, uint64_t &RelocOffset) {
+ switch ((unsigned)Fixup.getKind()) {
+ case PPC::fixup_ppc_ha16:
+ case PPC::fixup_ppc_lo16:
+ RelocOffset += 2;
+ break;
+ default:
+ break;
+ }
+}
+
+MCObjectWriter *llvm::createPPCELFObjectWriter(raw_ostream &OS,
+ bool Is64Bit,
+ uint8_t OSABI) {
+ MCELFObjectTargetWriter *MOTW = new PPCELFObjectWriter(Is64Bit, OSABI);
+ return createELFObjectWriter(MOTW, OS, /*IsLittleEndian=*/true);
+}