#include "X86MCAsmInfo.h"
#include "X86TargetMachine.h"
#include "llvm/ADT/Triple.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCSectionELF.h"
+#include "llvm/MC/MCStreamer.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ELF.h"
using namespace llvm;
enum AsmWriterFlavorTy {
if (!is64Bit)
Data64bitsDirective = 0; // we can't emit a 64-bit unit
- // Leopard and above support aligned common symbols.
- COMMDirectiveTakesAlignment = Triple.getDarwinMajorNumber() >= 9;
-
+ // Use ## as a comment string so that .s files generated by llvm can go
+ // through the GCC preprocessor without causing an error. This is needed
+ // because "clang foo.s" runs the C preprocessor, which is usually reserved
+ // for .S files on other systems. Perhaps this is because the file system
+ // wasn't always case preserving or something.
CommentString = "##";
PCSymbol = ".";
DwarfUsesInlineInfoSection = true;
// Exceptions handling
- ExceptionsType = ExceptionHandling::Dwarf;
- AbsoluteEHSectionOffsets = false;
+ ExceptionsType = ExceptionHandling::DwarfCFI;
+}
+
+const MCExpr *
+X86_64MCAsmInfoDarwin::getExprForPersonalitySymbol(const MCSymbol *Sym,
+ unsigned Encoding,
+ MCStreamer &Streamer) const {
+ MCContext &Context = Streamer.getContext();
+ const MCExpr *Res =
+ MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_GOTPCREL, Context);
+ const MCExpr *Four = MCConstantExpr::Create(4, Context);
+ return MCBinaryExpr::CreateAdd(Res, Four, Context);
}
-X86ELFMCAsmInfo::X86ELFMCAsmInfo(const Triple &Triple) {
+X86_64MCAsmInfoDarwin::X86_64MCAsmInfoDarwin(const Triple &Triple)
+ : X86MCAsmInfoDarwin(Triple) {
+}
+
+X86ELFMCAsmInfo::X86ELFMCAsmInfo(const Triple &T) {
AsmTransCBE = x86_asm_table;
AssemblerDialect = AsmWriterFlavor;
+ TextAlignFillValue = 0x90;
+
PrivateGlobalPrefix = ".L";
WeakRefDirective = "\t.weak\t";
- SetDirective = "\t.set\t";
PCSymbol = ".";
// Set up DWARF directives
HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
// Debug Information
- AbsoluteDebugSectionOffsets = true;
SupportsDebugInformation = true;
// Exceptions handling
- ExceptionsType = ExceptionHandling::Dwarf;
- AbsoluteEHSectionOffsets = false;
+ ExceptionsType = ExceptionHandling::DwarfCFI;
- // On Linux we must declare when we can use a non-executable stack.
- if (Triple.getOS() == Triple::Linux)
- NonexecutableStackDirective = "\t.section\t.note.GNU-stack,\"\",@progbits";
+ // OpenBSD has buggy support for .quad in 32-bit mode, just split into two
+ // .words.
+ if (T.getOS() == Triple::OpenBSD && T.getArch() == Triple::x86)
+ Data64bitsDirective = 0;
}
-X86MCAsmInfoCOFF::X86MCAsmInfoCOFF(const Triple &Triple) {
- AsmTransCBE = x86_asm_table;
- AssemblerDialect = AsmWriterFlavor;
+const MCSection *X86ELFMCAsmInfo::
+getNonexecutableStackSection(MCContext &Ctx) const {
+ return Ctx.getELFSection(".note.GNU-stack", ELF::SHT_PROGBITS,
+ 0, SectionKind::getMetadata());
}
+X86MCAsmInfoCOFF::X86MCAsmInfoCOFF(const Triple &Triple) {
+ if (Triple.getArch() == Triple::x86_64) {
+ GlobalPrefix = "";
+ PrivateGlobalPrefix = ".L";
+ }
-X86WinMCAsmInfo::X86WinMCAsmInfo(const Triple &Triple) {
AsmTransCBE = x86_asm_table;
AssemblerDialect = AsmWriterFlavor;
- GlobalPrefix = "_";
- CommentString = ";";
-
- PrivateGlobalPrefix = "$";
- AlignDirective = "\tALIGN\t";
- ZeroDirective = "\tdb\t";
- AsciiDirective = "\tdb\t";
- AscizDirective = 0;
- Data8bitsDirective = "\tdb\t";
- Data16bitsDirective = "\tdw\t";
- Data32bitsDirective = "\tdd\t";
- Data64bitsDirective = "\tdq\t";
- HasDotTypeDotSizeDirective = false;
- HasSingleParameterDotFile = false;
-
- AlignmentIsInBytes = true;
+ TextAlignFillValue = 0x90;
}