diff options
Diffstat (limited to 'lld/ELF/Arch/PPC.cpp')
-rw-r--r-- | lld/ELF/Arch/PPC.cpp | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/lld/ELF/Arch/PPC.cpp b/lld/ELF/Arch/PPC.cpp new file mode 100644 index 00000000000..b5f0d5b4c68 --- /dev/null +++ b/lld/ELF/Arch/PPC.cpp @@ -0,0 +1,63 @@ +//===- PPC.cpp ------------------------------------------------------------===// +// +// The LLVM Linker +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Error.h" +#include "Memory.h" +#include "Symbols.h" +#include "Target.h" +#include "llvm/Support/Endian.h" + +using namespace llvm; +using namespace llvm::support::endian; +using namespace llvm::ELF; +using namespace lld; +using namespace lld::elf; + +namespace { +class PPC final : public TargetInfo { +public: + PPC() {} + void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const override; + RelExpr getRelExpr(uint32_t Type, const SymbolBody &S, + const uint8_t *Loc) const override; +}; +} // namespace + +void PPC::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const { + switch (Type) { + case R_PPC_ADDR16_HA: + write16be(Loc, (Val + 0x8000) >> 16); + break; + case R_PPC_ADDR16_LO: + write16be(Loc, Val); + break; + case R_PPC_ADDR32: + case R_PPC_REL32: + write32be(Loc, Val); + break; + case R_PPC_REL24: + write32be(Loc, read32be(Loc) | (Val & 0x3FFFFFC)); + break; + default: + error(getErrorLocation(Loc) + "unrecognized reloc " + Twine(Type)); + } +} + +RelExpr PPC::getRelExpr(uint32_t Type, const SymbolBody &S, + const uint8_t *Loc) const { + switch (Type) { + case R_PPC_REL24: + case R_PPC_REL32: + return R_PC; + default: + return R_ABS; + } +} + +TargetInfo *elf::createPPCTargetInfo() { return make<PPC>(); } |