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Add mips ELF relocation types. Patch by Jack Carter!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143738 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes 2011-11-04 22:24:36 +00:00
parent 5c3a9f7dd6
commit a0dd4cbc87
1 changed files with 55 additions and 6 deletions
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61
lib/MC/ELFObjectWriter.cpp
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@ -28,6 +28,7 @@
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringSwitch.h"
#include "../Target/Mips/MCTargetDesc/MipsFixupKinds.h"
#include "../Target/X86/MCTargetDesc/X86FixupKinds.h"
#include "../Target/ARM/MCTargetDesc/ARMFixupKinds.h"
#include "../Target/PowerPC/MCTargetDesc/PPCFixupKinds.h"
@ -277,7 +278,7 @@ void ELFObjectWriter::WriteSymbolTable(MCDataFragment *SymtabF,
MCDataFragment *ShndxF,
const MCAssembler &Asm,
const MCAsmLayout &Layout,
const SectionIndexMapTy &SectionIndexMap) {
const SectionIndexMapTy &SectionIndexMap) {
// The string table must be emitted first because we need the index
// into the string table for all the symbol names.
assert(StringTable.size() && "Missing string table");
@ -306,7 +307,8 @@ void ELFObjectWriter::WriteSymbolTable(MCDataFragment *SymtabF,
Section.getType() == ELF::SHT_SYMTAB_SHNDX)
continue;
WriteSymbolEntry(SymtabF, ShndxF, 0, ELF::STT_SECTION, 0, 0,
ELF::STV_DEFAULT, SectionIndexMap.lookup(&Section), false);
ELF::STV_DEFAULT, SectionIndexMap.lookup(&Section),
false);
LastLocalSymbolIndex++;
}
@ -416,7 +418,7 @@ void ELFObjectWriter::RecordRelocation(const MCAssembler &Asm,
// Offset of the symbol in the section
int64_t a = Layout.getSymbolOffset(&SDB);
// Ofeset of the relocation in the section
// Offset of the relocation in the section
int64_t b = Layout.getFragmentOffset(Fragment) + Fixup.getOffset();
Value += b - a;
}
@ -1273,7 +1275,6 @@ MCObjectWriter *llvm::createELFObjectWriter(MCELFObjectTargetWriter *MOTW,
}
}
/// START OF SUBCLASSES for ELFObjectWriter
//===- ARMELFObjectWriter -------------------------------------------===//
@ -1815,6 +1816,8 @@ unsigned X86ELFObjectWriter::GetRelocType(const MCValue &Target,
return Type;
}
//===- MipsELFObjectWriter -------------------------------------------===//
MipsELFObjectWriter::MipsELFObjectWriter(MCELFObjectTargetWriter *MOTW,
raw_ostream &_OS,
bool IsLittleEndian)
@ -1827,6 +1830,52 @@ unsigned MipsELFObjectWriter::GetRelocType(const MCValue &Target,
bool IsPCRel,
bool IsRelocWithSymbol,
int64_t Addend) {
// tbd
return 1;
// determine the type of the relocation
unsigned Type = (unsigned)ELF::R_MIPS_NONE;
unsigned Kind = (unsigned)Fixup.getKind();
switch (Kind) {
default:
llvm_unreachable("invalid fixup kind!");
case FK_Data_4:
Type = ELF::R_MIPS_32;
break;
case Mips::fixup_Mips_GPREL16:
Type = ELF::R_MIPS_GPREL16;
break;
case Mips::fixup_Mips_26:
Type = ELF::R_MIPS_26;
break;
case Mips::fixup_Mips_CALL16:
Type = ELF::R_MIPS_CALL16;
break;
case Mips::fixup_Mips_GOT16:
Type = ELF::R_MIPS_GOT16;
break;
case Mips::fixup_Mips_HI16:
Type = ELF::R_MIPS_HI16;
break;
case Mips::fixup_Mips_LO16:
Type = ELF::R_MIPS_LO16;
break;
case Mips::fixup_Mips_TLSGD:
Type = ELF::R_MIPS_TLS_GD;
break;
case Mips::fixup_Mips_GOTTPREL:
Type = ELF::R_MIPS_TLS_GOTTPREL;
break;
case Mips::fixup_Mips_TPREL_HI:
Type = ELF::R_MIPS_TLS_TPREL_HI16;
break;
case Mips::fixup_Mips_TPREL_LO:
Type = ELF::R_MIPS_TLS_TPREL_LO16;
break;
case Mips::fixup_Mips_Branch_PCRel:
case Mips::fixup_Mips_PC16:
Type = ELF::R_MIPS_PC16;
break;
}
return Type;
}