diff options
Diffstat (limited to 'lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp')
-rw-r--r-- | lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp | 82 |
1 files changed, 37 insertions, 45 deletions
diff --git a/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp b/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp index fa840e1..1db178f 100644 --- a/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp +++ b/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp @@ -16,11 +16,14 @@ #include "llvm/CodeGen/GCMetadataPrinter.h" #include "llvm/Module.h" #include "llvm/MC/MCAsmInfo.h" +#include "llvm/MC/MCContext.h" #include "llvm/MC/MCSymbol.h" #include "llvm/MC/MCStreamer.h" +#include "llvm/Target/Mangler.h" #include "llvm/Target/TargetData.h" #include "llvm/Target/TargetLoweringObjectFile.h" #include "llvm/Target/TargetMachine.h" +#include "llvm/ADT/SmallString.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/FormattedStream.h" using namespace llvm; @@ -29,11 +32,8 @@ namespace { class OcamlGCMetadataPrinter : public GCMetadataPrinter { public: - void beginAssembly(raw_ostream &OS, AsmPrinter &AP, - const MCAsmInfo &MAI); - - void finishAssembly(raw_ostream &OS, AsmPrinter &AP, - const MCAsmInfo &MAI); + void beginAssembly(AsmPrinter &AP); + void finishAssembly(AsmPrinter &AP); }; } @@ -43,33 +43,34 @@ Y("ocaml", "ocaml 3.10-compatible collector"); void llvm::linkOcamlGCPrinter() { } -static void EmitCamlGlobal(const Module &M, raw_ostream &OS, AsmPrinter &AP, - const MCAsmInfo &MAI, const char *Id) { +static void EmitCamlGlobal(const Module &M, AsmPrinter &AP, const char *Id) { const std::string &MId = M.getModuleIdentifier(); - std::string Mangled; - Mangled += MAI.getGlobalPrefix(); - Mangled += "caml"; - size_t Letter = Mangled.size(); - Mangled.append(MId.begin(), std::find(MId.begin(), MId.end(), '.')); - Mangled += "__"; - Mangled += Id; - + std::string SymName; + SymName += "caml"; + size_t Letter = SymName.size(); + SymName.append(MId.begin(), std::find(MId.begin(), MId.end(), '.')); + SymName += "__"; + SymName += Id; + // Capitalize the first letter of the module name. - Mangled[Letter] = toupper(Mangled[Letter]); - - if (const char *GlobalDirective = MAI.getGlobalDirective()) - OS << GlobalDirective << Mangled << "\n"; - OS << Mangled << ":\n"; + SymName[Letter] = toupper(SymName[Letter]); + + SmallString<128> TmpStr; + AP.Mang->getNameWithPrefix(TmpStr, SymName); + + MCSymbol *Sym = AP.OutContext.GetOrCreateSymbol(TmpStr); + + AP.OutStreamer.EmitSymbolAttribute(Sym, MCSA_Global); + AP.OutStreamer.EmitLabel(Sym); } -void OcamlGCMetadataPrinter::beginAssembly(raw_ostream &OS, AsmPrinter &AP, - const MCAsmInfo &MAI) { +void OcamlGCMetadataPrinter::beginAssembly(AsmPrinter &AP) { AP.OutStreamer.SwitchSection(AP.getObjFileLowering().getTextSection()); - EmitCamlGlobal(getModule(), OS, AP, MAI, "code_begin"); + EmitCamlGlobal(getModule(), AP, "code_begin"); AP.OutStreamer.SwitchSection(AP.getObjFileLowering().getDataSection()); - EmitCamlGlobal(getModule(), OS, AP, MAI, "data_begin"); + EmitCamlGlobal(getModule(), AP, "data_begin"); } /// emitAssembly - Print the frametable. The ocaml frametable format is thus: @@ -88,28 +89,20 @@ void OcamlGCMetadataPrinter::beginAssembly(raw_ostream &OS, AsmPrinter &AP, /// (FrameSize and LiveOffsets would overflow). FrameTablePrinter will abort if /// either condition is detected in a function which uses the GC. /// -void OcamlGCMetadataPrinter::finishAssembly(raw_ostream &OS, AsmPrinter &AP, - const MCAsmInfo &MAI) { - const char *AddressDirective; - int AddressAlignLog; - if (AP.TM.getTargetData()->getPointerSize() == sizeof(int32_t)) { - AddressDirective = MAI.getData32bitsDirective(); - AddressAlignLog = 2; - } else { - AddressDirective = MAI.getData64bitsDirective(); - AddressAlignLog = 3; - } +void OcamlGCMetadataPrinter::finishAssembly(AsmPrinter &AP) { + unsigned IntPtrSize = AP.TM.getTargetData()->getPointerSize(); AP.OutStreamer.SwitchSection(AP.getObjFileLowering().getTextSection()); - EmitCamlGlobal(getModule(), OS, AP, MAI, "code_end"); + EmitCamlGlobal(getModule(), AP, "code_end"); AP.OutStreamer.SwitchSection(AP.getObjFileLowering().getDataSection()); - EmitCamlGlobal(getModule(), OS, AP, MAI, "data_end"); + EmitCamlGlobal(getModule(), AP, "data_end"); - OS << AddressDirective << 0 << '\n'; // FIXME: Why does ocaml emit this?? + // FIXME: Why does ocaml emit this?? + AP.OutStreamer.EmitIntValue(0, IntPtrSize, 0); AP.OutStreamer.SwitchSection(AP.getObjFileLowering().getDataSection()); - EmitCamlGlobal(getModule(), OS, AP, MAI, "frametable"); + EmitCamlGlobal(getModule(), AP, "frametable"); for (iterator I = begin(), IE = end(); I != IE; ++I) { GCFunctionInfo &FI = **I; @@ -125,8 +118,9 @@ void OcamlGCMetadataPrinter::finishAssembly(raw_ostream &OS, AsmPrinter &AP, llvm_report_error(Msg.str()); // Very rude! } - OS << "\t" << MAI.getCommentString() << " live roots for " - << FI.getFunction().getName() << "\n"; + AP.OutStreamer.AddComment("live roots for " + + Twine(FI.getFunction().getName())); + AP.OutStreamer.AddBlankLine(); for (GCFunctionInfo::iterator J = FI.begin(), JE = FI.end(); J != JE; ++J) { size_t LiveCount = FI.live_size(J); @@ -139,10 +133,8 @@ void OcamlGCMetadataPrinter::finishAssembly(raw_ostream &OS, AsmPrinter &AP, llvm_report_error(Msg.str()); // Very rude! } - OS << AddressDirective << J->Label->getName() << '\n'; - + AP.OutStreamer.EmitSymbolValue(J->Label, IntPtrSize, 0); AP.EmitInt16(FrameSize); - AP.EmitInt16(LiveCount); for (GCFunctionInfo::live_iterator K = FI.live_begin(J), @@ -154,7 +146,7 @@ void OcamlGCMetadataPrinter::finishAssembly(raw_ostream &OS, AsmPrinter &AP, AP.EmitInt32(K->StackOffset); } - AP.EmitAlignment(AddressAlignLog); + AP.EmitAlignment(IntPtrSize == 4 ? 2 : 3); } } } |