#include "X86MCAsmInfo.h"
#include "X86TargetMachine.h"
#include "llvm/ADT/Triple.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/Support/CommandLine.h"
using namespace llvm;
enum AsmWriterFlavorTy {
ATT = 0, Intel = 1
};
static cl::opt<AsmWriterFlavorTy>
AsmWriterFlavor("x86-asm-syntax", cl::init(ATT),
cl::desc("Choose style of code to emit from X86 backend:"),
cl::values(clEnumValN(ATT, "att", "Emit AT&T-style assembly"),
clEnumValN(Intel, "intel", "Emit Intel-style assembly"),
clEnumValEnd));
static const char *const x86_asm_table[] = {
"{si}", "S",
"{di}", "D",
"{ax}", "a",
"{cx}", "c",
"{memory}", "memory",
"{flags}", "",
"{dirflag}", "",
"{fpsr}", "",
"{cc}", "cc",
0,0};
X86MCAsmInfoDarwin::X86MCAsmInfoDarwin(const Triple &Triple) {
AsmTransCBE = x86_asm_table;
AssemblerDialect = AsmWriterFlavor;
bool is64Bit = Triple.getArch() == Triple::x86_64;
TextAlignFillValue = 0x90;
if (!is64Bit)
Data64bitsDirective = 0;
CommentString = "##";
PCSymbol = ".";
SupportsDebugInformation = true;
DwarfUsesInlineInfoSection = true;
ExceptionsType = ExceptionHandling::Dwarf;
}
X86ELFMCAsmInfo::X86ELFMCAsmInfo(const Triple &T) {
AsmTransCBE = x86_asm_table;
AssemblerDialect = AsmWriterFlavor;
TextAlignFillValue = 0x90;
PrivateGlobalPrefix = ".L";
WeakRefDirective = "\t.weak\t";
PCSymbol = ".";
HasLEB128 = true;
AbsoluteDebugSectionOffsets = true;
SupportsDebugInformation = true;
ExceptionsType = ExceptionHandling::Dwarf;
if (T.getOS() == Triple::OpenBSD && T.getArch() == Triple::x86)
Data64bitsDirective = 0;
}
MCSection *X86ELFMCAsmInfo::getNonexecutableStackSection(MCContext &Ctx) const {
return MCSectionELF::Create(".note.GNU-stack", MCSectionELF::SHT_PROGBITS,
0, SectionKind::getMetadata(), false, Ctx);
}
X86MCAsmInfoCOFF::X86MCAsmInfoCOFF(const Triple &Triple) {
AsmTransCBE = x86_asm_table;
AssemblerDialect = AsmWriterFlavor;
TextAlignFillValue = 0x90;
}