diff options
Diffstat (limited to 'lib/MC/MCELF.cpp')
-rw-r--r-- | lib/MC/MCELF.cpp | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/lib/MC/MCELF.cpp b/lib/MC/MCELF.cpp new file mode 100644 index 0000000..ce7783e --- /dev/null +++ b/lib/MC/MCELF.cpp @@ -0,0 +1,72 @@ +//===- lib/MC/MCELF.cpp - MC ELF ------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements ELF object file writer information. +// +//===----------------------------------------------------------------------===// + +#include "MCELF.h" +#include "llvm/MC/MCAssembler.h" +#include "llvm/MC/MCELFSymbolFlags.h" +#include "llvm/MC/MCFixupKindInfo.h" +#include "llvm/Support/ELF.h" +#include "llvm/Target/TargetAsmBackend.h" + +namespace llvm { + +void MCELF::SetBinding(MCSymbolData &SD, unsigned Binding) { + assert(Binding == ELF::STB_LOCAL || Binding == ELF::STB_GLOBAL || + Binding == ELF::STB_WEAK); + uint32_t OtherFlags = SD.getFlags() & ~(0xf << ELF_STB_Shift); + SD.setFlags(OtherFlags | (Binding << ELF_STB_Shift)); +} + +unsigned MCELF::GetBinding(const MCSymbolData &SD) { + uint32_t Binding = (SD.getFlags() & (0xf << ELF_STB_Shift)) >> ELF_STB_Shift; + assert(Binding == ELF::STB_LOCAL || Binding == ELF::STB_GLOBAL || + Binding == ELF::STB_WEAK); + return Binding; +} + +void MCELF::SetType(MCSymbolData &SD, unsigned Type) { + assert(Type == ELF::STT_NOTYPE || Type == ELF::STT_OBJECT || + Type == ELF::STT_FUNC || Type == ELF::STT_SECTION || + Type == ELF::STT_FILE || Type == ELF::STT_COMMON || + Type == ELF::STT_TLS); + + uint32_t OtherFlags = SD.getFlags() & ~(0xf << ELF_STT_Shift); + SD.setFlags(OtherFlags | (Type << ELF_STT_Shift)); +} + +unsigned MCELF::GetType(const MCSymbolData &SD) { + uint32_t Type = (SD.getFlags() & (0xf << ELF_STT_Shift)) >> ELF_STT_Shift; + assert(Type == ELF::STT_NOTYPE || Type == ELF::STT_OBJECT || + Type == ELF::STT_FUNC || Type == ELF::STT_SECTION || + Type == ELF::STT_FILE || Type == ELF::STT_COMMON || + Type == ELF::STT_TLS); + return Type; +} + +void MCELF::SetVisibility(MCSymbolData &SD, unsigned Visibility) { + assert(Visibility == ELF::STV_DEFAULT || Visibility == ELF::STV_INTERNAL || + Visibility == ELF::STV_HIDDEN || Visibility == ELF::STV_PROTECTED); + + uint32_t OtherFlags = SD.getFlags() & ~(0xf << ELF_STV_Shift); + SD.setFlags(OtherFlags | (Visibility << ELF_STV_Shift)); +} + +unsigned MCELF::GetVisibility(MCSymbolData &SD) { + unsigned Visibility = + (SD.getFlags() & (0xf << ELF_STV_Shift)) >> ELF_STV_Shift; + assert(Visibility == ELF::STV_DEFAULT || Visibility == ELF::STV_INTERNAL || + Visibility == ELF::STV_HIDDEN || Visibility == ELF::STV_PROTECTED); + return Visibility; +} + +} |