6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-25 13:24:46 +00:00
Code Issues Projects Releases Wiki Activity

Implement the missing bits corresponding to .mips_hack_elf_flags.

Browse Source 
These were:
* noreorder handling on the target object streamer and asm parser.
* setting the initial flag bits based on the enabled features.
* setting the elf header flag for micromips

It is *really* depressing I am the one doing this instead of someone at
mips actually taking the time to understand the infrastructure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200138 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2014-01-26 06:57:13 +00:00
parent 550d791907
commit 5356e75b5b
13 changed files with 136 additions and 119 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
lib/Target/Mips/MipsAsmPrinter.cpp
View File

@@ -636,54 +636,10 @@ void MipsAsmPrinter::EmitStartOfAsmFile(Module &M) {
}
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,