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Move everything depending on Object/MachOFormat.h over to Support/MachO.h.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189728 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Charles Davis
2013-09-01 04:28:48 +00:00
parent b83c66eb5e
commit 5510728d28
20 changed files with 912 additions and 1358 deletions
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92
lib/MC/MachObjectWriter.cpp
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@@ -20,12 +20,11 @@
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCValue.h"
#include "llvm/Object/MachOFormat.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MachO.h"
#include <vector>
using namespace llvm;
using namespace llvm::object;
void MachObjectWriter::reset() {
Relocations.clear();
@@ -128,7 +127,7 @@ void MachObjectWriter::WriteHeader(unsigned NumLoadCommands,
uint32_t Flags = 0;
if (SubsectionsViaSymbols)
Flags |= macho::HF_SubsectionsViaSymbols;
Flags |= MachO::MH_SUBSECTIONS_VIA_SYMBOLS;
// struct mach_header (28 bytes) or
// struct mach_header_64 (32 bytes)
@@ -136,12 +135,12 @@ void MachObjectWriter::WriteHeader(unsigned NumLoadCommands,
uint64_t Start = OS.tell();
(void) Start;
Write32(is64Bit() ? macho::HM_Object64 : macho::HM_Object32);
Write32(is64Bit() ? MachO::MH_MAGIC_64 : MachO::MH_MAGIC);
Write32(TargetObjectWriter->getCPUType());
Write32(TargetObjectWriter->getCPUSubtype());
Write32(macho::HFT_Object);
Write32(MachO::MH_OBJECT);
Write32(NumLoadCommands);
Write32(LoadCommandsSize);
Write32(Flags);
@@ -149,7 +148,7 @@ void MachObjectWriter::WriteHeader(unsigned NumLoadCommands,
Write32(0); // reserved
assert(OS.tell() - Start ==
(is64Bit() ? macho::Header64Size : macho::Header32Size));
(is64Bit()?sizeof(MachO::mach_header_64): sizeof(MachO::mach_header)));
}
/// WriteSegmentLoadCommand - Write a segment load command.
@@ -167,12 +166,12 @@ void MachObjectWriter::WriteSegmentLoadCommand(unsigned NumSections,
(void) Start;
unsigned SegmentLoadCommandSize =
is64Bit() ? macho::SegmentLoadCommand64Size:
macho::SegmentLoadCommand32Size;
Write32(is64Bit() ? macho::LCT_Segment64 : macho::LCT_Segment);
is64Bit() ? sizeof(MachO::segment_command_64):
sizeof(MachO::segment_command);
Write32(is64Bit() ? MachO::LC_SEGMENT_64 : MachO::LC_SEGMENT);
Write32(SegmentLoadCommandSize +
NumSections * (is64Bit() ? macho::Section64Size :
macho::Section32Size));
NumSections * (is64Bit() ? sizeof(MachO::section_64) :
sizeof(MachO::section)));
WriteBytes("", 16);
if (is64Bit()) {
@@ -240,8 +239,8 @@ void MachObjectWriter::WriteSection(const MCAssembler &Asm,
if (is64Bit())
Write32(0); // reserved3
assert(OS.tell() - Start == (is64Bit() ? macho::Section64Size :
macho::Section32Size));
assert(OS.tell() - Start == (is64Bit() ? sizeof(MachO::section_64) :
sizeof(MachO::section)));
}
void MachObjectWriter::WriteSymtabLoadCommand(uint32_t SymbolOffset,
@@ -253,14 +252,14 @@ void MachObjectWriter::WriteSymtabLoadCommand(uint32_t SymbolOffset,
uint64_t Start = OS.tell();
(void) Start;
Write32(macho::LCT_Symtab);
Write32(macho::SymtabLoadCommandSize);
Write32(MachO::LC_SYMTAB);
Write32(sizeof(MachO::symtab_command));
Write32(SymbolOffset);
Write32(NumSymbols);
Write32(StringTableOffset);
Write32(StringTableSize);
assert(OS.tell() - Start == macho::SymtabLoadCommandSize);
assert(OS.tell() - Start == sizeof(MachO::symtab_command));
}
void MachObjectWriter::WriteDysymtabLoadCommand(uint32_t FirstLocalSymbol,
@@ -276,8 +275,8 @@ void MachObjectWriter::WriteDysymtabLoadCommand(uint32_t FirstLocalSymbol,
uint64_t Start = OS.tell();
(void) Start;
Write32(macho::LCT_Dysymtab);
Write32(macho::DysymtabLoadCommandSize);
Write32(MachO::LC_DYSYMTAB);
Write32(sizeof(MachO::dysymtab_command));
Write32(FirstLocalSymbol);
Write32(NumLocalSymbols);
Write32(FirstExternalSymbol);
@@ -297,7 +296,7 @@ void MachObjectWriter::WriteDysymtabLoadCommand(uint32_t FirstLocalSymbol,
Write32(0); // locreloff
Write32(0); // nlocrel
assert(OS.tell() - Start == macho::DysymtabLoadCommandSize);
assert(OS.tell() - Start == sizeof(MachO::dysymtab_command));
}
void MachObjectWriter::WriteNlist(MachSymbolData &MSD,
@@ -312,20 +311,20 @@ void MachObjectWriter::WriteNlist(MachSymbolData &MSD,
//
// FIXME: Are the prebound or indirect fields possible here?
if (Symbol.isUndefined())
Type = macho::STT_Undefined;
Type = MachO::N_UNDF;
else if (Symbol.isAbsolute())
Type = macho::STT_Absolute;
Type = MachO::N_ABS;
else
Type = macho::STT_Section;
Type = MachO::N_SECT;
// FIXME: Set STAB bits.
if (Data.isPrivateExtern())
Type |= macho::STF_PrivateExtern;
Type |= MachO::N_PEXT;
// Set external bit.
if (Data.isExternal() || Symbol.isUndefined())
Type |= macho::STF_External;
Type |= MachO::N_EXT;
// Compute the symbol address.
if (Symbol.isDefined()) {
@@ -369,17 +368,17 @@ void MachObjectWriter::WriteLinkeditLoadCommand(uint32_t Type,
(void) Start;
Write32(Type);
Write32(macho::LinkeditLoadCommandSize);
Write32(sizeof(MachO::linkedit_data_command));
Write32(DataOffset);
Write32(DataSize);
assert(OS.tell() - Start == macho::LinkeditLoadCommandSize);
assert(OS.tell() - Start == sizeof(MachO::linkedit_data_command));
}
static unsigned ComputeLinkerOptionsLoadCommandSize(
const std::vector<std::string> &Options, bool is64Bit)
{
unsigned Size = sizeof(macho::LinkerOptionsLoadCommand);
unsigned Size = sizeof(MachO::linker_options_command);
for (unsigned i = 0, e = Options.size(); i != e; ++i)
Size += Options[i].size() + 1;
return RoundUpToAlignment(Size, is64Bit ? 8 : 4);
@@ -392,10 +391,10 @@ void MachObjectWriter::WriteLinkerOptionsLoadCommand(
uint64_t Start = OS.tell();
(void) Start;
Write32(macho::LCT_LinkerOptions);
Write32(MachO::LC_LINKER_OPTIONS);
Write32(Size);
Write32(Options.size());
uint64_t BytesWritten = sizeof(macho::LinkerOptionsLoadCommand);
uint64_t BytesWritten = sizeof(MachO::linker_options_command);
for (unsigned i = 0, e = Options.size(); i != e; ++i) {
// Write each string, including the null byte.
const std::string &Option = Options[i];
@@ -739,14 +738,14 @@ void MachObjectWriter::WriteObject(MCAssembler &Asm,
// section headers) and the symbol table.
unsigned NumLoadCommands = 1;
uint64_t LoadCommandsSize = is64Bit() ?
macho::SegmentLoadCommand64Size + NumSections * macho::Section64Size :
macho::SegmentLoadCommand32Size + NumSections * macho::Section32Size;
sizeof(MachO::segment_command_64) + NumSections * sizeof(MachO::section_64):
sizeof(MachO::segment_command) + NumSections * sizeof(MachO::section);
// Add the data-in-code load command size, if used.
unsigned NumDataRegions = Asm.getDataRegions().size();
if (NumDataRegions) {
++NumLoadCommands;
LoadCommandsSize += macho::LinkeditLoadCommandSize;
LoadCommandsSize += sizeof(MachO::linkedit_data_command);
}
// Add the symbol table load command sizes, if used.
@@ -754,8 +753,8 @@ void MachObjectWriter::WriteObject(MCAssembler &Asm,
UndefinedSymbolData.size();
if (NumSymbols) {
NumLoadCommands += 2;
LoadCommandsSize += (macho::SymtabLoadCommandSize +
macho::DysymtabLoadCommandSize);
LoadCommandsSize += (sizeof(MachO::symtab_command) +
sizeof(MachO::dysymtab_command));
}
// Add the linker option load commands sizes.
@@ -769,8 +768,8 @@ void MachObjectWriter::WriteObject(MCAssembler &Asm,
// Compute the total size of the section data, as well as its file size and vm
// size.
uint64_t SectionDataStart = (is64Bit() ? macho::Header64Size :
macho::Header32Size) + LoadCommandsSize;
uint64_t SectionDataStart = (is64Bit() ? sizeof(MachO::mach_header_64) :
sizeof(MachO::mach_header)) + LoadCommandsSize;
uint64_t SectionDataSize = 0;
uint64_t SectionDataFileSize = 0;
uint64_t VMSize = 0;
@@ -807,11 +806,11 @@ void MachObjectWriter::WriteObject(MCAssembler &Asm,
uint64_t RelocTableEnd = SectionDataStart + SectionDataFileSize;
for (MCAssembler::const_iterator it = Asm.begin(),
ie = Asm.end(); it != ie; ++it) {
std::vector<macho::RelocationEntry> &Relocs = Relocations[it];
std::vector<MachO::any_relocation_info> &Relocs = Relocations[it];
unsigned NumRelocs = Relocs.size();
uint64_t SectionStart = SectionDataStart + getSectionAddress(it);
WriteSection(Asm, Layout, *it, SectionStart, RelocTableEnd, NumRelocs);
RelocTableEnd += NumRelocs * macho::RelocationInfoSize;
RelocTableEnd += NumRelocs * sizeof(MachO::any_relocation_info);
}
// Write the data-in-code load command, if used.
@@ -819,7 +818,7 @@ void MachObjectWriter::WriteObject(MCAssembler &Asm,
if (NumDataRegions) {
uint64_t DataRegionsOffset = RelocTableEnd;
uint64_t DataRegionsSize = NumDataRegions * 8;
WriteLinkeditLoadCommand(macho::LCT_DataInCode, DataRegionsOffset,
WriteLinkeditLoadCommand(MachO::LC_DATA_IN_CODE, DataRegionsOffset,
DataRegionsSize);
}
@@ -846,8 +845,9 @@ void MachObjectWriter::WriteObject(MCAssembler &Asm,
// The string table is written after symbol table.
uint64_t StringTableOffset =
SymbolTableOffset + NumSymTabSymbols * (is64Bit() ? macho::Nlist64Size :
macho::Nlist32Size);
SymbolTableOffset + NumSymTabSymbols * (is64Bit() ?
sizeof(MachO::nlist_64) :
sizeof(MachO::nlist));
WriteSymtabLoadCommand(SymbolTableOffset, NumSymTabSymbols,
StringTableOffset, StringTable.size());
@@ -880,10 +880,10 @@ void MachObjectWriter::WriteObject(MCAssembler &Asm,
ie = Asm.end(); it != ie; ++it) {
// Write the section relocation entries, in reverse order to match 'as'
// (approximately, the exact algorithm is more complicated than this).
std::vector<macho::RelocationEntry> &Relocs = Relocations[it];
std::vector<MachO::any_relocation_info> &Relocs = Relocations[it];
for (unsigned i = 0, e = Relocs.size(); i != e; ++i) {
Write32(Relocs[e - i - 1].Word0);
Write32(Relocs[e - i - 1].Word1);
Write32(Relocs[e - i - 1].r_word0);
Write32(Relocs[e - i - 1].r_word1);
}
}
@@ -922,9 +922,9 @@ void MachObjectWriter::WriteObject(MCAssembler &Asm,
// If this symbol is defined and internal, mark it as such.
if (it->Symbol->isDefined() &&
!Asm.getSymbolData(*it->Symbol).isExternal()) {
uint32_t Flags = macho::ISF_Local;
uint32_t Flags = MachO::INDIRECT_SYMBOL_LOCAL;
if (it->Symbol->isAbsolute())
Flags |= macho::ISF_Absolute;
Flags |= MachO::INDIRECT_SYMBOL_ABS;
Write32(Flags);
continue;
}