// Allow a target to add behavior to the EmitLabel of MCStreamer.
virtual void emitLabel(MCSymbol *Symbol);
+
+ virtual void finish();
};
// FIXME: declared here because it is used from
void MCTargetStreamer::emitLabel(MCSymbol *Symbol) {}
+void MCTargetStreamer::finish() {}
+
MCStreamer::MCStreamer(MCContext &Ctx)
: Context(Ctx), EmitEHFrame(true), EmitDebugFrame(false),
CurrentW64UnwindInfo(0), LastSymbol(0) {
if (!FrameInfos.empty() && !FrameInfos.back().End)
report_fatal_error("Unfinished frame!");
+ MCTargetStreamer *TS = getTargetStreamer();
+ if (TS)
+ TS->finish();
+
FinishImpl();
}
MipsMCCodeEmitter.cpp
MipsMCTargetDesc.cpp
MipsELFObjectWriter.cpp
- MipsReginfo.cpp
MipsTargetStreamer.cpp
)
+++ /dev/null
-//===-- MipsReginfo.cpp - Registerinfo handling --------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-// .reginfo
-// Elf32_Word ri_gprmask
-// Elf32_Word ri_cprmask[4]
-// Elf32_Word ri_gp_value
-//
-// .MIPS.options - N64
-// Elf64_Byte kind (ODK_REGINFO)
-// Elf64_Byte size (40 bytes)
-// Elf64_Section section (0)
-// Elf64_Word info (unused)
-// Elf64_Word ri_gprmask ()
-// Elf64_Word ri_pad ()
-// Elf64_Word[4] ri_cprmask ()
-// Elf64_Addr ri_gp_value ()
-//
-// .MIPS.options - N32
-// Elf32_Byte kind (ODK_REGINFO)
-// Elf32_Byte size (36 bytes)
-// Elf32_Section section (0)
-// Elf32_Word info (unused)
-// Elf32_Word ri_gprmask ()
-// Elf32_Word ri_pad ()
-// Elf32_Word[4] ri_cprmask ()
-// Elf32_Addr ri_gp_value ()
-//
-//===----------------------------------------------------------------------===//
-#include "MCTargetDesc/MipsReginfo.h"
-#include "MipsSubtarget.h"
-#include "MipsTargetObjectFile.h"
-#include "llvm/MC/MCStreamer.h"
-
-using namespace llvm;
-
-// Integrated assembler version
-void
-MipsReginfo::emitMipsReginfoSectionCG(MCStreamer &OS,
- const TargetLoweringObjectFile &TLOF,
- const MipsSubtarget &MST) const
-{
-
- if (OS.hasRawTextSupport())
- return;
-
- const MipsTargetObjectFile &TLOFELF =
- static_cast<const MipsTargetObjectFile &>(TLOF);
- OS.SwitchSection(TLOFELF.getReginfoSection());
-
- // .reginfo
- if (MST.isABI_O32()) {
- OS.EmitIntValue(0, 4); // ri_gprmask
- OS.EmitIntValue(0, 4); // ri_cpr[0]mask
- OS.EmitIntValue(0, 4); // ri_cpr[1]mask
- OS.EmitIntValue(0, 4); // ri_cpr[2]mask
- OS.EmitIntValue(0, 4); // ri_cpr[3]mask
- OS.EmitIntValue(0, 4); // ri_gp_value
- }
- // .MIPS.options
- else if (MST.isABI_N64()) {
- OS.EmitIntValue(1, 1); // kind
- OS.EmitIntValue(40, 1); // size
- OS.EmitIntValue(0, 2); // section
- OS.EmitIntValue(0, 4); // info
- OS.EmitIntValue(0, 4); // ri_gprmask
- OS.EmitIntValue(0, 4); // pad
- OS.EmitIntValue(0, 4); // ri_cpr[0]mask
- OS.EmitIntValue(0, 4); // ri_cpr[1]mask
- OS.EmitIntValue(0, 4); // ri_cpr[2]mask
- OS.EmitIntValue(0, 4); // ri_cpr[3]mask
- OS.EmitIntValue(0, 8); // ri_gp_value
- }
- else llvm_unreachable("Unsupported abi for reginfo");
-}
-
+++ /dev/null
-//=== MipsReginfo.h - MipsReginfo -----------------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENCE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef MIPSREGINFO_H
-#define MIPSREGINFO_H
-
-namespace llvm {
- class MCStreamer;
- class TargetLoweringObjectFile;
- class MipsSubtarget;
-
- class MipsReginfo {
- void anchor();
- public:
- MipsReginfo() {}
-
- void emitMipsReginfoSectionCG(MCStreamer &OS,
- const TargetLoweringObjectFile &TLOF,
- const MipsSubtarget &MST) const;
- };
-
-} // namespace llvm
-
-#endif
-
//===----------------------------------------------------------------------===//
#include "InstPrinter/MipsInstPrinter.h"
+#include "MipsTargetObjectFile.h"
#include "MipsTargetStreamer.h"
#include "MipsMCTargetDesc.h"
+#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCELF.h"
+#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Support/CommandLine.h"
// This part is for ELF object output.
MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S,
const MCSubtargetInfo &STI)
- : MipsTargetStreamer(S), MicroMipsEnabled(false) {
+ : MipsTargetStreamer(S), MicroMipsEnabled(false), STI(STI) {
MCAssembler &MCA = getStreamer().getAssembler();
uint64_t Features = STI.getFeatureBits();
Triple T(STI.getTargetTriple());
MCELF::setOther(Data, ELF::STO_MIPS_MICROMIPS >> 2);
}
+void MipsTargetELFStreamer::finish() {
+ MCAssembler &MCA = getStreamer().getAssembler();
+ MCContext &Context = MCA.getContext();
+ MCStreamer &OS = getStreamer();
+ Triple T(STI.getTargetTriple());
+ uint64_t Features = STI.getFeatureBits();
+
+ if (T.isArch64Bit() && (Features & Mips::FeatureN64)) {
+ const MCSectionELF *Sec = Context.getELFSection(
+ ".MIPS.options", ELF::SHT_MIPS_OPTIONS,
+ ELF::SHF_ALLOC | ELF::SHF_MIPS_NOSTRIP, SectionKind::getMetadata());
+ OS.SwitchSection(Sec);
+
+ OS.EmitIntValue(1, 1); // kind
+ OS.EmitIntValue(40, 1); // size
+ OS.EmitIntValue(0, 2); // section
+ OS.EmitIntValue(0, 4); // info
+ OS.EmitIntValue(0, 4); // ri_gprmask
+ OS.EmitIntValue(0, 4); // pad
+ OS.EmitIntValue(0, 4); // ri_cpr[0]mask
+ OS.EmitIntValue(0, 4); // ri_cpr[1]mask
+ OS.EmitIntValue(0, 4); // ri_cpr[2]mask
+ OS.EmitIntValue(0, 4); // ri_cpr[3]mask
+ OS.EmitIntValue(0, 8); // ri_gp_value
+ } else {
+ const MCSectionELF *Sec =
+ Context.getELFSection(".reginfo", ELF::SHT_MIPS_REGINFO, ELF::SHF_ALLOC,
+ SectionKind::getMetadata());
+ OS.SwitchSection(Sec);
+
+ OS.EmitIntValue(0, 4); // ri_gprmask
+ OS.EmitIntValue(0, 4); // ri_cpr[0]mask
+ OS.EmitIntValue(0, 4); // ri_cpr[1]mask
+ OS.EmitIntValue(0, 4); // ri_cpr[2]mask
+ OS.EmitIntValue(0, 4); // ri_cpr[3]mask
+ OS.EmitIntValue(0, 4); // ri_gp_value
+ }
+}
+
MCELFStreamer &MipsTargetELFStreamer::getStreamer() {
return static_cast<MCELFStreamer &>(Streamer);
}
OutStreamer.SwitchSection(OutContext.getObjectFileInfo()->getTextSection());
}
-void MipsAsmPrinter::EmitEndOfAsmFile(Module &M) {
- // Emit Mips ELF register info
- Subtarget->getMReginfo().emitMipsReginfoSectionCG(
- OutStreamer, getObjFileLowering(), *Subtarget);
-}
-
void MipsAsmPrinter::PrintDebugValueComment(const MachineInstr *MI,
raw_ostream &OS) {
// TODO: implement
void printFCCOperand(const MachineInstr *MI, int opNum, raw_ostream &O,
const char *Modifier = 0);
void EmitStartOfAsmFile(Module &M);
- void EmitEndOfAsmFile(Module &M);
void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS);
};
}
#ifndef MIPSSUBTARGET_H
#define MIPSSUBTARGET_H
-#include "MCTargetDesc/MipsReginfo.h"
#include "llvm/MC/MCInstrItineraries.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Target/TargetSubtargetInfo.h"
InstrItineraryData InstrItins;
- // The instance to the register info section object
- MipsReginfo MRI;
-
// Relocation Model
Reloc::Model RM;
unsigned stackAlignment() const { return hasMips64() ? 16 : 8; }
- // Grab MipsRegInfo object
- const MipsReginfo &getMReginfo() const { return MRI; }
-
// Grab relocation model
Reloc::Model getRelocationModel() const {return RM;}
getContext().getELFSection(".sbss", ELF::SHT_NOBITS,
ELF::SHF_WRITE |ELF::SHF_ALLOC,
SectionKind::getBSS());
-
- // Register info information
- const MipsSubtarget &Subtarget = TM.getSubtarget<MipsSubtarget>();
- if (Subtarget.isABI_N64() || Subtarget.isABI_N32())
- ReginfoSection =
- getContext().getELFSection(".MIPS.options",
- ELF::SHT_MIPS_OPTIONS,
- ELF::SHF_ALLOC |ELF::SHF_MIPS_NOSTRIP,
- SectionKind::getMetadata());
- else
- ReginfoSection =
- getContext().getELFSection(".reginfo",
- ELF::SHT_MIPS_REGINFO,
- ELF::SHF_ALLOC,
- SectionKind::getMetadata());
}
// A address must be loaded from a small section if its size is less than the
class MipsTargetObjectFile : public TargetLoweringObjectFileELF {
const MCSection *SmallDataSection;
const MCSection *SmallBSSSection;
- const MCSection *ReginfoSection;
public:
void Initialize(MCContext &Ctx, const TargetMachine &TM);
SectionKind Kind,
Mangler *Mang,
const TargetMachine &TM) const;
-
- // TODO: Classify globals as mips wishes.
- const MCSection *getReginfoSection() const { return ReginfoSection; }
};
} // end namespace llvm
// This part is for ELF object output
class MipsTargetELFStreamer : public MipsTargetStreamer {
bool MicroMipsEnabled;
+ const MCSubtargetInfo &STI;
public:
bool isMicroMipsEnabled() const { return MicroMipsEnabled; }
MipsTargetELFStreamer(MCStreamer &S, const MCSubtargetInfo &STI);
virtual void emitLabel(MCSymbol *Symbol) LLVM_OVERRIDE;
+ void finish() LLVM_OVERRIDE;
virtual void emitDirectiveSetMicroMips();
virtual void emitDirectiveSetNoMicroMips();
+++ /dev/null
- ; RUN: llc -filetype=obj -march=mips64el -mcpu=mips64 %s -o - \
- ; RUN: | llvm-readobj -s | FileCheck --check-prefix=CHECK_64 %s
- ; RUN: llc -filetype=obj -march=mipsel -mcpu=mips32 %s -o - \
- ; RUN: | llvm-readobj -s | FileCheck --check-prefix=CHECK_32 %s
-
-; Check for register information sections.
-;
-
-@str = private unnamed_addr constant [12 x i8] c"hello world\00"
-
-define i32 @main() nounwind {
-entry:
-; Check that the appropriate relocations were created.
-
-; check for .MIPS.options
-; CHECK_64: Sections [
-; CHECK_64: Section {
-; CHECK_64: Name: .MIPS.options
-; CHECK_64-NEXT: Type: SHT_MIPS_OPTIONS
-; CHECK_64-NEXT: Flags [ (0x8000002)
-
-; check for .reginfo
-; CHECK_32: Sections [
-; CHECK_32: Section {
-; CHECK_32: Name: .reginfo
-; CHECK_32-NEXT: Type: SHT_MIPS_REGINFO
-; CHECK_32-NEXT: Flags [ (0x2)
-
-
- %puts = tail call i32 @puts(i8* getelementptr inbounds ([12 x i8]* @str, i64 0, i64 0))
- ret i32 0
-
-}
-declare i32 @puts(i8* nocapture) nounwind
--- /dev/null
+# These *MUST* match the output of gas compiled with the same triple and
+# corresponding options (-mabi=64 -> -mattr=+n64 for example).
+
+# RUN: llvm-mc -filetype=obj -triple=mips64el-linux -mattr=+n64 %s -o - \
+# RUN: | llvm-readobj -s | FileCheck --check-prefix=CHECK_64 %s
+# RUN: llvm-mc -filetype=obj -triple=mipsel %s -mattr=+n32 -o - \
+# RUN: | llvm-readobj -s | FileCheck --check-prefix=CHECK_32 %s
+
+# Check for register information sections.
+#
+
+# Check that the appropriate relocations were created.
+
+# check for .MIPS.options
+# CHECK_64: Sections [
+# CHECK_64: Section {
+# CHECK_64: Name: .MIPS.options
+# CHECK_64-NEXT: Type: SHT_MIPS_OPTIONS
+# CHECK_64-NEXT: Flags [ (0x8000002)
+
+# check for .reginfo
+# CHECK_32: Sections [
+# CHECK_32: Section {
+# CHECK_32: Name: .reginfo
+# CHECK_32-NEXT: Type: SHT_MIPS_REGINFO
+# CHECK_32-NEXT: Flags [ (0x2)