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author | Bill Wendling <isanbard@gmail.com> | 2007-01-17 03:49:21 +0000 |
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committer | Bill Wendling <isanbard@gmail.com> | 2007-01-17 03:49:21 +0000 |
commit | 157c4eeb4d81140ce8c4dbff630828546d62d599 (patch) | |
tree | ffed2f970ebed6896774738dd7a4f30b89c3a863 /lib/CodeGen/MachOWriter.cpp | |
parent | 3007f7a30e2202ea93de6f1e5f8c4a8914b43bd9 (diff) | |
download | external_llvm-157c4eeb4d81140ce8c4dbff630828546d62d599.zip external_llvm-157c4eeb4d81140ce8c4dbff630828546d62d599.tar.gz external_llvm-157c4eeb4d81140ce8c4dbff630828546d62d599.tar.bz2 |
Use the methods in the TargetObjInfo object instead of internal methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33289 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachOWriter.cpp')
-rw-r--r-- | lib/CodeGen/MachOWriter.cpp | 166 |
1 files changed, 90 insertions, 76 deletions
diff --git a/lib/CodeGen/MachOWriter.cpp b/lib/CodeGen/MachOWriter.cpp index 49c7457..0a8825a 100644 --- a/lib/CodeGen/MachOWriter.cpp +++ b/lib/CodeGen/MachOWriter.cpp @@ -32,11 +32,11 @@ #include "llvm/ExecutionEngine/ExecutionEngine.h" #include "llvm/Target/TargetAsmInfo.h" #include "llvm/Target/TargetJITInfo.h" +#include "llvm/Target/TargetObjInfo.h" #include "llvm/Support/Mangler.h" #include "llvm/Support/MathExtras.h" #include "llvm/Support/Streams.h" #include <algorithm> - using namespace llvm; //===----------------------------------------------------------------------===// @@ -49,6 +49,14 @@ namespace llvm { class MachOCodeEmitter : public MachineCodeEmitter { MachOWriter &MOW; + /// Target machine description. + /// + TargetMachine &TM; + + /// Target object writer info. + /// + const TargetObjInfo *TOI; + /// Relocations - These are the relocations that the function needs, as /// emitted. std::vector<MachineRelocation> Relocations; @@ -71,7 +79,10 @@ namespace llvm { std::vector<intptr_t> MBBLocations; public: - MachOCodeEmitter(MachOWriter &mow) : MOW(mow) {} + MachOCodeEmitter(MachOWriter &mow, TargetMachine &tm) : MOW(mow), TM(tm) { + // Create the target object info object for this target. + TOI = TM.getTargetObjInfo(); + } virtual void startFunction(MachineFunction &F); virtual bool finishFunction(MachineFunction &F); @@ -163,7 +174,7 @@ bool MachOCodeEmitter::finishFunction(MachineFunction &F) { // Get a symbol for the function to add to the symbol table const GlobalValue *FuncV = F.getFunction(); - MachOSym FnSym(FuncV, MOW.Mang->getValueName(FuncV), MOS->Index, MOW.TM); + MachOSym FnSym(FuncV, MOW.Mang->getValueName(FuncV), MOS->Index, TM); // Emit constant pool to appropriate section(s) emitConstantPool(F.getConstantPool()); @@ -211,7 +222,7 @@ void MachOCodeEmitter::emitConstantPool(MachineConstantPool *MCP) { if (CP.empty()) return; // FIXME: handle PIC codegen - bool isPIC = MOW.TM.getRelocationModel() == Reloc::PIC_; + bool isPIC = TM.getRelocationModel() == Reloc::PIC_; assert(!isPIC && "PIC codegen not yet handled for mach-o jump tables!"); // Although there is no strict necessity that I am aware of, we will do what @@ -223,7 +234,7 @@ void MachOCodeEmitter::emitConstantPool(MachineConstantPool *MCP) { // "giant object for PIC" optimization. for (unsigned i = 0, e = CP.size(); i != e; ++i) { const Type *Ty = CP[i].getType(); - unsigned Size = MOW.TM.getTargetData()->getTypeSize(Ty); + unsigned Size = TM.getTargetData()->getTypeSize(Ty); MachOWriter::MachOSection *Sec = MOW.getConstSection(Ty); CPLocations.push_back(Sec->SectionData.size()); @@ -236,10 +247,10 @@ void MachOCodeEmitter::emitConstantPool(MachineConstantPool *MCP) { // FIXME: need alignment? // FIXME: share between here and AddSymbolToSection? for (unsigned j = 0; j < Size; ++j) - MOW.outbyte(Sec->SectionData, 0); + TOI->outbyte(Sec->SectionData, 0); MOW.InitMem(CP[i].Val.ConstVal, &Sec->SectionData[0], CPLocations[i], - MOW.TM.getTargetData(), Sec->Relocations); + TM.getTargetData(), Sec->Relocations); } } @@ -250,7 +261,7 @@ void MachOCodeEmitter::emitJumpTables(MachineJumpTableInfo *MJTI) { if (JT.empty()) return; // FIXME: handle PIC codegen - bool isPIC = MOW.TM.getRelocationModel() == Reloc::PIC_; + bool isPIC = TM.getRelocationModel() == Reloc::PIC_; assert(!isPIC && "PIC codegen not yet handled for mach-o jump tables!"); MachOWriter::MachOSection *Sec = MOW.getJumpTableSection(); @@ -267,7 +278,7 @@ void MachOCodeEmitter::emitJumpTables(MachineJumpTableInfo *MJTI) { MR.setResultPointer((void *)JTLocations[i]); MR.setConstantVal(TextSecIndex); Sec->Relocations.push_back(MR); - MOW.outaddr(Sec->SectionData, 0); + TOI->outaddr(Sec->SectionData, 0); } } // FIXME: remove when we have unified size + output buffer @@ -283,7 +294,10 @@ MachOWriter::MachOWriter(std::ostream &o, TargetMachine &tm) : O(o), TM(tm) { isLittleEndian = TM.getTargetData()->isLittleEndian(); // Create the machine code emitter object for this target. - MCE = new MachOCodeEmitter(*this); + MCE = new MachOCodeEmitter(*this, tm); + + // Create the target object info object for this target. + TOI = TM.getTargetObjInfo(); } MachOWriter::~MachOWriter() { @@ -312,7 +326,7 @@ void MachOWriter::AddSymbolToSection(MachOSection *Sec, GlobalVariable *GV) { // FIXME: remove when we have unified size + output buffer unsigned AlignedSize = Sec->size - OrigSize; for (unsigned i = 0; i < AlignedSize; ++i) - outbyte(Sec->SectionData, 0); + TOI->outbyte(Sec->SectionData, 0); } // Record the offset of the symbol, and then allocate space for it. // FIXME: remove when we have unified size + output buffer @@ -329,7 +343,7 @@ void MachOWriter::AddSymbolToSection(MachOSection *Sec, GlobalVariable *GV) { // Allocate space in the section for the global. for (unsigned i = 0; i < Size; ++i) - outbyte(Sec->SectionData, 0); + TOI->outbyte(Sec->SectionData, 0); } void MachOWriter::EmitGlobal(GlobalVariable *GV) { @@ -442,15 +456,15 @@ void MachOWriter::EmitHeaderAndLoadCommands() { // Step #3: write the header to the file // Local alias to shortenify coming code. DataBuffer &FH = Header.HeaderData; - outword(FH, Header.magic); - outword(FH, Header.cputype); - outword(FH, Header.cpusubtype); - outword(FH, Header.filetype); - outword(FH, Header.ncmds); - outword(FH, Header.sizeofcmds); - outword(FH, Header.flags); + TOI->outword(FH, Header.magic); + TOI->outword(FH, Header.cputype); + TOI->outword(FH, Header.cpusubtype); + TOI->outword(FH, Header.filetype); + TOI->outword(FH, Header.ncmds); + TOI->outword(FH, Header.sizeofcmds); + TOI->outword(FH, Header.flags); if (is64Bit) - outword(FH, Header.reserved); + TOI->outword(FH, Header.reserved); // Step #4: Finish filling in the segment load command and write it out for (std::vector<MachOSection*>::iterator I = SectionList.begin(), @@ -460,17 +474,17 @@ void MachOWriter::EmitHeaderAndLoadCommands() { SEG.vmsize = SEG.filesize; SEG.fileoff = Header.cmdSize(is64Bit) + Header.sizeofcmds; - outword(FH, SEG.cmd); - outword(FH, SEG.cmdsize); - outstring(FH, SEG.segname, 16); - outaddr(FH, SEG.vmaddr); - outaddr(FH, SEG.vmsize); - outaddr(FH, SEG.fileoff); - outaddr(FH, SEG.filesize); - outword(FH, SEG.maxprot); - outword(FH, SEG.initprot); - outword(FH, SEG.nsects); - outword(FH, SEG.flags); + TOI->outword(FH, SEG.cmd); + TOI->outword(FH, SEG.cmdsize); + TOI->outstring(FH, SEG.segname, 16); + TOI->outaddr(FH, SEG.vmaddr); + TOI->outaddr(FH, SEG.vmsize); + TOI->outaddr(FH, SEG.fileoff); + TOI->outaddr(FH, SEG.filesize); + TOI->outword(FH, SEG.maxprot); + TOI->outword(FH, SEG.initprot); + TOI->outword(FH, SEG.nsects); + TOI->outword(FH, SEG.flags); // Step #5: Finish filling in the fields of the MachOSections uint64_t currentAddr = 0; @@ -497,19 +511,19 @@ void MachOWriter::EmitHeaderAndLoadCommands() { currentAddr += MOS->nreloc * 8; // write the finalized section command to the output buffer - outstring(FH, MOS->sectname, 16); - outstring(FH, MOS->segname, 16); - outaddr(FH, MOS->addr); - outaddr(FH, MOS->size); - outword(FH, MOS->offset); - outword(FH, MOS->align); - outword(FH, MOS->reloff); - outword(FH, MOS->nreloc); - outword(FH, MOS->flags); - outword(FH, MOS->reserved1); - outword(FH, MOS->reserved2); + TOI->outstring(FH, MOS->sectname, 16); + TOI->outstring(FH, MOS->segname, 16); + TOI->outaddr(FH, MOS->addr); + TOI->outaddr(FH, MOS->size); + TOI->outword(FH, MOS->offset); + TOI->outword(FH, MOS->align); + TOI->outword(FH, MOS->reloff); + TOI->outword(FH, MOS->nreloc); + TOI->outword(FH, MOS->flags); + TOI->outword(FH, MOS->reserved1); + TOI->outword(FH, MOS->reserved2); if (is64Bit) - outword(FH, MOS->reserved3); + TOI->outword(FH, MOS->reserved3); } // Step #7: Emit the symbol table to temporary buffers, so that we know the @@ -521,36 +535,36 @@ void MachOWriter::EmitHeaderAndLoadCommands() { SymTab.nsyms = SymbolTable.size(); SymTab.stroff = SymTab.symoff + SymT.size(); SymTab.strsize = StrT.size(); - outword(FH, SymTab.cmd); - outword(FH, SymTab.cmdsize); - outword(FH, SymTab.symoff); - outword(FH, SymTab.nsyms); - outword(FH, SymTab.stroff); - outword(FH, SymTab.strsize); + TOI->outword(FH, SymTab.cmd); + TOI->outword(FH, SymTab.cmdsize); + TOI->outword(FH, SymTab.symoff); + TOI->outword(FH, SymTab.nsyms); + TOI->outword(FH, SymTab.stroff); + TOI->outword(FH, SymTab.strsize); // FIXME: set DySymTab fields appropriately // We should probably just update these in BufferSymbolAndStringTable since // thats where we're partitioning up the different kinds of symbols. - outword(FH, DySymTab.cmd); - outword(FH, DySymTab.cmdsize); - outword(FH, DySymTab.ilocalsym); - outword(FH, DySymTab.nlocalsym); - outword(FH, DySymTab.iextdefsym); - outword(FH, DySymTab.nextdefsym); - outword(FH, DySymTab.iundefsym); - outword(FH, DySymTab.nundefsym); - outword(FH, DySymTab.tocoff); - outword(FH, DySymTab.ntoc); - outword(FH, DySymTab.modtaboff); - outword(FH, DySymTab.nmodtab); - outword(FH, DySymTab.extrefsymoff); - outword(FH, DySymTab.nextrefsyms); - outword(FH, DySymTab.indirectsymoff); - outword(FH, DySymTab.nindirectsyms); - outword(FH, DySymTab.extreloff); - outword(FH, DySymTab.nextrel); - outword(FH, DySymTab.locreloff); - outword(FH, DySymTab.nlocrel); + TOI->outword(FH, DySymTab.cmd); + TOI->outword(FH, DySymTab.cmdsize); + TOI->outword(FH, DySymTab.ilocalsym); + TOI->outword(FH, DySymTab.nlocalsym); + TOI->outword(FH, DySymTab.iextdefsym); + TOI->outword(FH, DySymTab.nextdefsym); + TOI->outword(FH, DySymTab.iundefsym); + TOI->outword(FH, DySymTab.nundefsym); + TOI->outword(FH, DySymTab.tocoff); + TOI->outword(FH, DySymTab.ntoc); + TOI->outword(FH, DySymTab.modtaboff); + TOI->outword(FH, DySymTab.nmodtab); + TOI->outword(FH, DySymTab.extrefsymoff); + TOI->outword(FH, DySymTab.nextrefsyms); + TOI->outword(FH, DySymTab.indirectsymoff); + TOI->outword(FH, DySymTab.nindirectsyms); + TOI->outword(FH, DySymTab.extreloff); + TOI->outword(FH, DySymTab.nextrel); + TOI->outword(FH, DySymTab.locreloff); + TOI->outword(FH, DySymTab.nlocrel); O.write((char*)&FH[0], FH.size()); } @@ -627,7 +641,7 @@ void MachOWriter::BufferSymbolAndStringTable() { // Write out a leading zero byte when emitting string table, for n_strx == 0 // which means an empty string. - outbyte(StrT, 0); + TOI->outbyte(StrT, 0); // The order of the string table is: // 1. strings for external symbols @@ -640,7 +654,7 @@ void MachOWriter::BufferSymbolAndStringTable() { I->n_strx = 0; } else { I->n_strx = StrT.size(); - outstring(StrT, I->GVName, I->GVName.length()+1); + TOI->outstring(StrT, I->GVName, I->GVName.length()+1); } } @@ -654,11 +668,11 @@ void MachOWriter::BufferSymbolAndStringTable() { I->n_value += GVSection[GV]->addr; // Emit nlist to buffer - outword(SymT, I->n_strx); - outbyte(SymT, I->n_type); - outbyte(SymT, I->n_sect); - outhalf(SymT, I->n_desc); - outaddr(SymT, I->n_value); + TOI->outword(SymT, I->n_strx); + TOI->outbyte(SymT, I->n_type); + TOI->outbyte(SymT, I->n_sect); + TOI->outhalf(SymT, I->n_desc); + TOI->outaddr(SymT, I->n_value); } } |