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This patch that sets the Mips ELF header flag for

Browse Source 
MicroMips architectures. 

Contributer: Zoran Jovanovic
 
llvm-svn: 174360
This commit is contained in:
Jack Carter 2013-02-05 09:30:03 +00:00
parent 3dfa61ae2c
commit 10d56b481a
6 changed files with 22 additions and 2 deletions
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3
include/llvm/Support/ELF.h
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@ -747,7 +747,8 @@ enum {
EF_MIPS_ARCH_64 = 0x60000000, // MIPS64 instruction set per linux not elf.h
EF_MIPS_ARCH_32R2 = 0x70000000, // mips32r2
EF_MIPS_ARCH_64R2 = 0x80000000, // mips64r2
EF_MIPS_ARCH = 0xf0000000 // Mask for applying EF_MIPS_ARCH_ variant
EF_MIPS_ARCH = 0xf0000000, // Mask for applying EF_MIPS_ARCH_ variant
EF_MIPS_MICROMIPS = 0x02000000 // microMIPS
};
// ELF Relocation types for Mips

3
lib/Target/Mips/MCTargetDesc/MipsELFStreamer.cpp
View File

@ -45,6 +45,9 @@ namespace llvm {
else
EFlags |= ELF::EF_MIPS_ARCH_32;
if (Subtarget.inMicroMipsMode())
EFlags |= ELF::EF_MIPS_MICROMIPS;
// Relocation Model
Reloc::Model RM = Subtarget.getRelocationModel();
if (RM == Reloc::PIC_ || RM == Reloc::Default)

3
lib/Target/Mips/Mips.td
View File

@ -80,6 +80,9 @@ def FeatureDSP : SubtargetFeature<"dsp", "HasDSP", "true", "Mips DSP ASE">;
def FeatureDSPR2 : SubtargetFeature<"dspr2", "HasDSPR2", "true",
"Mips DSP-R2 ASE", [FeatureDSP]>;
def FeatureMicroMips : SubtargetFeature<"micromips", "InMicroMipsMode", "true",
"microMips mode">;
//===----------------------------------------------------------------------===//
// Mips processors supported.
//===----------------------------------------------------------------------===//

3
lib/Target/Mips/MipsSubtarget.cpp
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@ -32,7 +32,8 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
IsSingleFloat(false), IsFP64bit(false), IsGP64bit(false), HasVFPU(false),
IsLinux(true), HasSEInReg(false), HasCondMov(false), HasSwap(false),
HasBitCount(false), HasFPIdx(false),
InMips16Mode(false), HasDSP(false), HasDSPR2(false), IsAndroid(false), RM(_RM)
InMips16Mode(false), InMicroMipsMode(false), HasDSP(false), HasDSPR2(false),
IsAndroid(false), RM(_RM)
{
std::string CPUName = CPU;
if (CPUName.empty())

4
lib/Target/Mips/MipsSubtarget.h
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@ -89,6 +89,9 @@ protected:
// InMips16 -- can process Mips16 instructions
bool InMips16Mode;
// InMicroMips -- can process MicroMips instructions
bool InMicroMipsMode;
// HasDSP, HasDSPR2 -- supports DSP ASE.
bool HasDSP, HasDSPR2;
@ -138,6 +141,7 @@ public:
bool isNotSingleFloat() const { return !IsSingleFloat; }
bool hasVFPU() const { return HasVFPU; }
bool inMips16Mode() const { return InMips16Mode; }
bool inMicroMipsMode() const { return InMicroMipsMode; }
bool hasDSP() const { return HasDSP; }
bool hasDSPR2() const { return HasDSPR2; }
bool isAndroid() const { return IsAndroid; }

8
test/MC/Mips/elf_eflags.ll
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@ -17,6 +17,8 @@
; RUN: llc -filetype=obj -mtriple mipsel-unknown-linux -mcpu=mips32 %s -o - | elf-dump --dump-section-data | FileCheck -check-prefix=CHECK-BE32_PIC %s
; RUN: llc -filetype=obj -mtriple mipsel-unknown-linux -mcpu=mips32r2 -relocation-model=static %s -o - | elf-dump --dump-section-data | FileCheck -check-prefix=CHECK-BE32R2 %s
; RUN: llc -filetype=obj -mtriple mipsel-unknown-linux -mcpu=mips32r2 %s -o - | elf-dump --dump-section-data | FileCheck -check-prefix=CHECK-BE32R2_PIC %s
; RUN: llc -filetype=obj -mtriple mipsel-unknown-linux -mcpu=mips32r2 -mattr=+micromips -relocation-model=static %s -o - | elf-dump --dump-section-data | FileCheck -check-prefix=CHECK-BE32R2-MICROMIPS %s
; RUN: llc -filetype=obj -mtriple mipsel-unknown-linux -mcpu=mips32r2 -mattr=+micromips %s -o - | elf-dump --dump-section-data | FileCheck -check-prefix=CHECK-BE32R2-MICROMIPS_PIC %s
; RUN: llc -filetype=obj -mtriple mipsel-unknown-linux -mcpu=mips64 -relocation-model=static %s -o - | elf-dump --dump-section-data | FileCheck -check-prefix=CHECK-BE64 %s
; RUN: llc -filetype=obj -mtriple mipsel-unknown-linux -mcpu=mips64 %s -o - | elf-dump --dump-section-data | FileCheck -check-prefix=CHECK-BE64_PIC %s
@ -36,6 +38,12 @@
; 32R2 bit with NO_REORDER and PIC
; CHECK-BE32R2_PIC: ('e_flags', 0x70000003)
;
; 32R2 bit MICROMIPS with NO_REORDER and static
; CHECK-BE32R2-MICROMIPS: ('e_flags', 0x72000001)
;
; 32R2 bit MICROMIPS with NO_REORDER and PIC
;CHECK-BE32R2-MICROMIPS_PIC: ('e_flags', 0x72000003)
;
; 64(R1) bit with NO_REORDER and static
; CHECK-BE64: ('e_flags', 0x60000001)
;