EF_MIPS_NOREORDER = 0x00000001, // Don't reorder instructions
EF_MIPS_PIC = 0x00000002, // Position independent code
EF_MIPS_CPIC = 0x00000004, // Call object with Position independent code
+ EF_MIPS_ABI2 = 0x00000020,
+ EF_MIPS_32BITMODE = 0x00000100,
EF_MIPS_ABI_O32 = 0x00001000, // This file follows the first MIPS 32 bit ABI
//ARCH_ASE
bool isEvaluated(const MCExpr *Expr);
bool parseDirectiveSet();
- bool parseDirectiveMipsHackELFFlags();
bool parseDirectiveOption();
bool parseSetAtDirective();
return false;
}
Options.setNoreorder();
+ getTargetStreamer().emitDirectiveSetNoReorder();
Parser.Lex(); // Consume the EndOfStatement.
return false;
}
return true;
}
-bool MipsAsmParser::parseDirectiveMipsHackELFFlags() {
- int64_t Flags = 0;
- if (Parser.parseAbsoluteExpression(Flags)) {
- TokError("unexpected token");
- return false;
- }
-
- getTargetStreamer().emitMipsHackELFFlags(Flags);
- return false;
-}
-
/// parseDirectiveWord
/// ::= .word [ expression (, expression)* ]
bool MipsAsmParser::parseDirectiveWord(unsigned Size, SMLoc L) {
return false;
}
- if (IDVal == ".mips_hack_elf_flags")
- return parseDirectiveMipsHackELFFlags();
-
if (IDVal == ".option")
return parseDirectiveOption();
bool RelaxAll, bool NoExecStack) {
MCStreamer *S =
createELFStreamer(Context, MAB, OS, Emitter, RelaxAll, NoExecStack);
- new MipsTargetELFStreamer(*S);
+ new MipsTargetELFStreamer(*S, STI);
return S;
}
//===----------------------------------------------------------------------===//
#include "MipsTargetStreamer.h"
+#include "MipsMCTargetDesc.h"
#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
-static cl::opt<bool> PrintHackDirectives("print-hack-directives",
- cl::init(false), cl::Hidden);
-
// Pin vtable to this file.
void MipsTargetStreamer::anchor() {}
formatted_raw_ostream &OS)
: MipsTargetStreamer(S), OS(OS) {}
-void MipsTargetAsmStreamer::emitMipsHackELFFlags(unsigned Flags) {
- if (!PrintHackDirectives)
- return;
-
- OS << "\t.mips_hack_elf_flags 0x";
- OS.write_hex(Flags);
- OS << '\n';
-}
-
void MipsTargetAsmStreamer::emitDirectiveSetMicroMips() {
OS << "\t.set\tmicromips\n";
}
}
// This part is for ELF object output.
-MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S)
- : MipsTargetStreamer(S), MicroMipsEnabled(false) {}
+MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S,
+ const MCSubtargetInfo &STI)
+ : MipsTargetStreamer(S), MicroMipsEnabled(false) {
+ MCAssembler &MCA = getStreamer().getAssembler();
+ uint64_t Features = STI.getFeatureBits();
+ Triple T(STI.getTargetTriple());
+
+ // Update e_header flags
+ unsigned EFlags = 0;
+
+ // Architecture
+ if (Features & Mips::FeatureMips64r2)
+ EFlags |= ELF::EF_MIPS_ARCH_64R2;
+ else if (Features & Mips::FeatureMips64)
+ EFlags |= ELF::EF_MIPS_ARCH_64;
+ else if (Features & Mips::FeatureMips32r2)
+ EFlags |= ELF::EF_MIPS_ARCH_32R2;
+ else if (Features & Mips::FeatureMips32)
+ EFlags |= ELF::EF_MIPS_ARCH_32;
+
+ if (T.isArch64Bit()) {
+ EFlags |= ELF::EF_MIPS_ABI2;
+ } else {
+ if (Features & Mips::FeatureMips64r2 || Features & Mips::FeatureMips64)
+ EFlags |= ELF::EF_MIPS_32BITMODE;
+
+ // ABI
+ EFlags |= ELF::EF_MIPS_ABI_O32;
+ }
+
+ MCA.setELFHeaderEFlags(EFlags);
+}
void MipsTargetELFStreamer::emitLabel(MCSymbol *Symbol) {
if (!isMicroMipsEnabled())
return static_cast<MCELFStreamer &>(Streamer);
}
-void MipsTargetELFStreamer::emitMipsHackELFFlags(unsigned Flags) {
- MCAssembler &MCA = getStreamer().getAssembler();
- MCA.setELFHeaderEFlags(Flags);
-}
-
void MipsTargetELFStreamer::emitDirectiveSetMicroMips() {
MicroMipsEnabled = true;
+
+ MCAssembler &MCA = getStreamer().getAssembler();
+ unsigned Flags = MCA.getELFHeaderEFlags();
+ Flags |= ELF::EF_MIPS_MICROMIPS;
+ MCA.setELFHeaderEFlags(Flags);
}
void MipsTargetELFStreamer::emitDirectiveSetNoMicroMips() {
}
void MipsTargetELFStreamer::emitDirectiveSetNoReorder() {
- // FIXME: implement.
+ MCAssembler &MCA = getStreamer().getAssembler();
+ unsigned Flags = MCA.getELFHeaderEFlags();
+ Flags |= ELF::EF_MIPS_NOREORDER;
+ MCA.setELFHeaderEFlags(Flags);
}
void MipsTargetELFStreamer::emitDirectiveSetMacro() {
void MipsTargetELFStreamer::emitDirectiveAbiCalls() {
MCAssembler &MCA = getStreamer().getAssembler();
unsigned Flags = MCA.getELFHeaderEFlags();
- Flags |= ELF::EF_MIPS_CPIC;
+ Flags |= ELF::EF_MIPS_CPIC | ELF::EF_MIPS_PIC;
MCA.setELFHeaderEFlags(Flags);
}
void MipsTargetELFStreamer::emitDirectiveOptionPic0() {
}
-static void emitELFHeaderFlagsCG(MipsTargetStreamer &TargetStreamer,
- const MipsSubtarget &Subtarget) {
- // Update e_header flags
- unsigned EFlags = 0;
-
- // TODO: Need to add -mabicalls and -mno-abicalls flags.
- // Currently we assume that -mabicalls is the default.
- EFlags |= ELF::EF_MIPS_CPIC;
-
- if (Subtarget.inMips16Mode())
- EFlags |= ELF::EF_MIPS_ARCH_ASE_M16;
- else
- EFlags |= ELF::EF_MIPS_NOREORDER;
-
- // Architecture
- if (Subtarget.hasMips64r2())
- EFlags |= ELF::EF_MIPS_ARCH_64R2;
- else if (Subtarget.hasMips64())
- EFlags |= ELF::EF_MIPS_ARCH_64;
- else if (Subtarget.hasMips32r2())
- EFlags |= ELF::EF_MIPS_ARCH_32R2;
- else
- EFlags |= ELF::EF_MIPS_ARCH_32;
-
- if (Subtarget.inMicroMipsMode())
- EFlags |= ELF::EF_MIPS_MICROMIPS;
-
- // ABI
- if (Subtarget.isABI_O32())
- EFlags |= ELF::EF_MIPS_ABI_O32;
-
- // Relocation Model
- Reloc::Model RM = Subtarget.getRelocationModel();
- if (RM == Reloc::PIC_ || RM == Reloc::Default)
- EFlags |= ELF::EF_MIPS_PIC;
- else if (RM == Reloc::Static)
- ; // Do nothing for Reloc::Static
- else
- llvm_unreachable("Unsupported relocation model for e_flags");
-
- TargetStreamer.emitMipsHackELFFlags(EFlags);
-}
-
void MipsAsmPrinter::EmitEndOfAsmFile(Module &M) {
// Emit Mips ELF register info
Subtarget->getMReginfo().emitMipsReginfoSectionCG(
OutStreamer, getObjFileLowering(), *Subtarget);
- emitELFHeaderFlagsCG(getTargetStreamer(), *Subtarget);
}
void MipsAsmPrinter::PrintDebugValueComment(const MachineInstr *MI,
public:
MipsTargetStreamer(MCStreamer &S);
- virtual void emitMipsHackELFFlags(unsigned Flags) = 0;
virtual void emitDirectiveSetMicroMips() = 0;
virtual void emitDirectiveSetNoMicroMips() = 0;
virtual void emitDirectiveSetMips16() = 0;
public:
MipsTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
- virtual void emitMipsHackELFFlags(unsigned Flags);
virtual void emitDirectiveSetMicroMips();
virtual void emitDirectiveSetNoMicroMips();
virtual void emitDirectiveSetMips16();
public:
bool isMicroMipsEnabled() const { return MicroMipsEnabled; }
MCELFStreamer &getStreamer();
- MipsTargetELFStreamer(MCStreamer &S);
+ MipsTargetELFStreamer(MCStreamer &S, const MCSubtargetInfo &STI);
virtual void emitLabel(MCSymbol *Symbol) LLVM_OVERRIDE;
- // FIXME: emitMipsHackELFFlags() will be removed from this class.
- virtual void emitMipsHackELFFlags(unsigned Flags);
virtual void emitDirectiveSetMicroMips();
virtual void emitDirectiveSetNoMicroMips();
virtual void emitDirectiveSetMips16();
; Note that EF_MIPS_CPIC is set by -mabicalls which is the default on Linux
; TODO need to support -mno-abicalls
-; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32 -relocation-model=static %s -print-hack-directives -o - | FileCheck -check-prefix=CHECK-BE32 %s
-; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32 -print-hack-directives %s -o - | FileCheck -check-prefix=CHECK-BE32_PIC %s
-; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32r2 -relocation-model=static %s -print-hack-directives -o - | FileCheck -check-prefix=CHECK-BE32R2 %s
-; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32r2 -print-hack-directives %s -o - | FileCheck -check-prefix=CHECK-BE32R2_PIC %s
-; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32r2 -mattr=+micromips -relocation-model=static -print-hack-directives %s -o - | FileCheck -check-prefix=CHECK-BE32R2-MICROMIPS %s
-; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32r2 -mattr=+micromips -print-hack-directives %s -o - | FileCheck -check-prefix=CHECK-BE32R2-MICROMIPS_PIC %s
+; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32 -relocation-model=static %s -o - | FileCheck -check-prefix=CHECK-BE32 %s
+; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32 %s -o - | FileCheck -check-prefix=CHECK-BE32_PIC %s
+; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32r2 -relocation-model=static %s -o - | FileCheck -check-prefix=CHECK-BE32R2 %s
+; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32r2 %s -o - | FileCheck -check-prefix=CHECK-BE32R2_PIC %s
+; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32r2 -mattr=+micromips -relocation-model=static %s -o - | FileCheck -check-prefix=CHECK-BE32R2-MICROMIPS %s
+; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32r2 -mattr=+micromips %s -o - | FileCheck -check-prefix=CHECK-BE32R2-MICROMIPS_PIC %s
-; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips64 -relocation-model=static %s -print-hack-directives -o - | FileCheck -check-prefix=CHECK-BE64 %s
-; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips64 %s -print-hack-directives -o - | FileCheck -check-prefix=CHECK-BE64_PIC %s
-; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips64r2 -relocation-model=static -print-hack-directives %s -o - | FileCheck -check-prefix=CHECK-BE64R2 %s
-; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips64r2 -print-hack-directives %s -o - | FileCheck -check-prefix=CHECK-BE64R2_PIC %s
+; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips64 -relocation-model=static %s -o - | FileCheck -check-prefix=CHECK-BE64 %s
+; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips64 %s -o - | FileCheck -check-prefix=CHECK-BE64_PIC %s
+; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips64r2 -relocation-model=static %s -o - | FileCheck -check-prefix=CHECK-BE64R2 %s
+; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips64r2 %s -o - | FileCheck -check-prefix=CHECK-BE64R2_PIC %s
-; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32r2 -mattr=+mips16 -relocation-model=pic -print-hack-directives %s -o - | FileCheck -check-prefix=CHECK-LE32R2-MIPS16 %s
+; RUN: llc -mtriple mipsel-unknown-linux -mcpu=mips32r2 -mattr=+mips16 -relocation-model=pic %s -o - | FileCheck -check-prefix=CHECK-LE32R2-MIPS16 %s
; 32(R1) bit with NO_REORDER and static
-; CHECK-BE32: .mips_hack_elf_flags 0x50001005
+; CHECK-BE32: .abicalls
+; CHECK-BE32: .option pic0
+; CHECK-BE32: .set noreorder
;
; 32(R1) bit with NO_REORDER and PIC
-; CHECK-BE32_PIC: .mips_hack_elf_flags 0x50001007
+; CHECK-BE32_PIC: .abicalls
+; CHECK-BE32_PIC: .set noreorder
;
; 32R2 bit with NO_REORDER and static
-; CHECK-BE32R2: .mips_hack_elf_flags 0x70001005
+; CHECK-BE32R2: .abicalls
+; CHECK-BE32R2: .option pic0
+; CHECK-BE32R2: .set noreorder
;
; 32R2 bit with NO_REORDER and PIC
-; CHECK-BE32R2_PIC: .mips_hack_elf_flags 0x70001007
+; CHECK-BE32R2_PIC: .abicalls
+; CHECK-BE32R2_PIC: .set noreorder
;
; 32R2 bit MICROMIPS with NO_REORDER and static
-; CHECK-BE32R2-MICROMIPS: .mips_hack_elf_flags 0x72001005
+; CHECK-BE32R2-MICROMIPS: .abicalls
+; CHECK-BE32R2-MICROMIPS: .option pic0
+; CHECK-BE32R2-MICROMIPS: .set micromips
;
; 32R2 bit MICROMIPS with NO_REORDER and PIC
-; CHECK-BE32R2-MICROMIPS_PIC: .mips_hack_elf_flags 0x72001007
+; CHECK-BE32R2-MICROMIPS_PIC: .abicalls
+; CHECK-BE32R2-MICROMIPS_PIC: .set micromips
;
; 64(R1) bit with NO_REORDER and static
-; CHECK-BE64: .mips_hack_elf_flags 0x60000005
+; CHECK-BE64: .abicalls
+; CHECK-BE64: .set noreorder
;
; 64(R1) bit with NO_REORDER and PIC
-; CHECK-BE64_PIC: .mips_hack_elf_flags 0x60000007
+; CHECK-BE64_PIC: .abicalls
+; CHECK-BE64_PIC: .set noreorder
;
; 64R2 bit with NO_REORDER and static
-; CHECK-BE64R2: .mips_hack_elf_flags 0x80000005
+; CHECK-BE64R2: .abicalls
+; CHECK-BE64R2: .set noreorder
;
; 64R2 bit with NO_REORDER and PIC
-; CHECK-BE64R2_PIC: .mips_hack_elf_flags 0x80000007
+; CHECK-BE64R2_PIC: .abicalls
+; CHECK-BE64R2_PIC: .set noreorder
;
; 32R2 bit MIPS16 with PIC
-; CHECK-LE32R2-MIPS16: .mips_hack_elf_flags 0x74001006
+; CHECK-LE32R2-MIPS16: .abicalls
+; CHECK-LE32R2-MIPS16: .set mips16
define i32 @main() nounwind {
entry:
-// RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux %s -o -| llvm-readobj -h | FileCheck %s
-// The initial value will be set at 0x50001003 and
-// we will override that with the negation of 0x2 (option pic0
-// the addition of 0x4 (.abicalls)
+# These *MUST* match the output of gas compiled with the same triple and
+# corresponding options (-mcpu=mips32 -> -mips32 for example).
- .mips_hack_elf_flags 0x50001003
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips64r2 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS64R2 %s
+# MIPSEL-MIPS64R2: Flags [ (0x80001100)
-// CHECK: Flags [ (0x54001005)
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips64 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS64 %s
+# MIPSEL-MIPS64: Flags [ (0x60001100)
- .abicalls
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32r2 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS32R2 %s
+# MIPSEL-MIPS32R2: Flags [ (0x70001000)
- .option pic0
-
- // Set EF_MIPS_ARCH_ASE_M16 (0x04000000)
- .set mips16
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS32 %s
+# MIPSEL-MIPS32: Flags [ (0x50001000)
+
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2 %s
+# MIPS64EL-MIPS64R2: Flags [ (0x80000020)
+
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64 %s
+# MIPS64EL-MIPS64: Flags [ (0x60000020)
--- /dev/null
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32 %s -o -| llvm-readobj -h | FileCheck %s
+
+# This *MUST* match the output of gas compiled with the same triple.
+# CHECK: Flags [ (0x50001006)
+
+.abicalls
--- /dev/null
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32 %s -o -| llvm-readobj -h | FileCheck %s
+
+# This *MUST* match the output of gas compiled with the same triple.
+# CHECK: Flags [ (0x52001000)
+
+ .set micromips
+f:
+ nop
--- /dev/null
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32 %s -o -| llvm-readobj -h | FileCheck %s
+
+# This *MUST* match the output of gas compiled with the same triple.
+# CHECK: Flags [ (0x54001000)
+
+ .set mips16
+f:
+ nop
--- /dev/null
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32 %s -o -| llvm-readobj -h | FileCheck %s
+
+# This *MUST* match the output of gas compiled with the same triple.
+# CHECK: Flags [ (0x50001001)
+
+.set noreorder
--- /dev/null
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32 %s -o -| llvm-readobj -h | FileCheck %s
+
+# This *MUST* match the output of gas compiled with the same triple.
+# CHECK: Flags [ (0x50001004)
+
+.abicalls
+.option pic0