aboutsummaryrefslogtreecommitdiffstats
path: root/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp')
-rw-r--r--lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp117
1 files changed, 87 insertions, 30 deletions
diff --git a/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp b/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
index 1e092f2..64d7cab 100644
--- a/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
+++ b/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
@@ -43,6 +43,9 @@ void MipsTargetStreamer::emitDirectiveSetNoMacro() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetMsa() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetNoMsa() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetAt() { forbidModuleDirective(); }
+void MipsTargetStreamer::emitDirectiveSetAtWithArg(unsigned RegNo) {
+ forbidModuleDirective();
+}
void MipsTargetStreamer::emitDirectiveSetNoAt() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveEnd(StringRef Name) {}
void MipsTargetStreamer::emitDirectiveEnt(const MCSymbol &Symbol) {}
@@ -67,9 +70,13 @@ void MipsTargetStreamer::emitDirectiveSetMips4() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetMips5() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetMips32() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetMips32R2() { forbidModuleDirective(); }
+void MipsTargetStreamer::emitDirectiveSetMips32R3() { forbidModuleDirective(); }
+void MipsTargetStreamer::emitDirectiveSetMips32R5() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetMips32R6() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetMips64() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetMips64R2() { forbidModuleDirective(); }
+void MipsTargetStreamer::emitDirectiveSetMips64R3() { forbidModuleDirective(); }
+void MipsTargetStreamer::emitDirectiveSetMips64R5() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetMips64R6() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetPop() {}
void MipsTargetStreamer::emitDirectiveSetPush() {}
@@ -144,6 +151,11 @@ void MipsTargetAsmStreamer::emitDirectiveSetAt() {
MipsTargetStreamer::emitDirectiveSetAt();
}
+void MipsTargetAsmStreamer::emitDirectiveSetAtWithArg(unsigned RegNo) {
+ OS << "\t.set\tat=$" << Twine(RegNo) << "\n";
+ MipsTargetStreamer::emitDirectiveSetAtWithArg(RegNo);
+}
+
void MipsTargetAsmStreamer::emitDirectiveSetNoAt() {
OS << "\t.set\tnoat\n";
MipsTargetStreamer::emitDirectiveSetNoAt();
@@ -223,6 +235,16 @@ void MipsTargetAsmStreamer::emitDirectiveSetMips32R2() {
MipsTargetStreamer::emitDirectiveSetMips32R2();
}
+void MipsTargetAsmStreamer::emitDirectiveSetMips32R3() {
+ OS << "\t.set\tmips32r3\n";
+ MipsTargetStreamer::emitDirectiveSetMips32R3();
+}
+
+void MipsTargetAsmStreamer::emitDirectiveSetMips32R5() {
+ OS << "\t.set\tmips32r5\n";
+ MipsTargetStreamer::emitDirectiveSetMips32R5();
+}
+
void MipsTargetAsmStreamer::emitDirectiveSetMips32R6() {
OS << "\t.set\tmips32r6\n";
MipsTargetStreamer::emitDirectiveSetMips32R6();
@@ -238,6 +260,16 @@ void MipsTargetAsmStreamer::emitDirectiveSetMips64R2() {
MipsTargetStreamer::emitDirectiveSetMips64R2();
}
+void MipsTargetAsmStreamer::emitDirectiveSetMips64R3() {
+ OS << "\t.set\tmips64r3\n";
+ MipsTargetStreamer::emitDirectiveSetMips64R3();
+}
+
+void MipsTargetAsmStreamer::emitDirectiveSetMips64R5() {
+ OS << "\t.set\tmips64r5\n";
+ MipsTargetStreamer::emitDirectiveSetMips64R5();
+}
+
void MipsTargetAsmStreamer::emitDirectiveSetMips64R6() {
OS << "\t.set\tmips64r6\n";
MipsTargetStreamer::emitDirectiveSetMips64R6();
@@ -335,19 +367,32 @@ MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S,
const MCSubtargetInfo &STI)
: MipsTargetStreamer(S), MicroMipsEnabled(false), STI(STI) {
MCAssembler &MCA = getStreamer().getAssembler();
- uint64_t Features = STI.getFeatureBits();
Triple T(STI.getTargetTriple());
Pic = (MCA.getContext().getObjectFileInfo()->getRelocM() == Reloc::PIC_)
? true
: false;
- // Update e_header flags
- unsigned EFlags = 0;
+ uint64_t Features = STI.getFeatureBits();
+
+ // Set the header flags that we can in the constructor.
+ // FIXME: This is a fairly terrible hack. We set the rest
+ // of these in the destructor. The problem here is two-fold:
+ //
+ // a: Some of the eflags can be set/reset by directives.
+ // b: There aren't any usage paths that initialize the ABI
+ // pointer until after we initialize either an assembler
+ // or the target machine.
+ // We can fix this by making the target streamer construct
+ // the ABI, but this is fraught with wide ranging dependency
+ // issues as well.
+ unsigned EFlags = MCA.getELFHeaderEFlags();
// Architecture
if (Features & Mips::FeatureMips64r6)
EFlags |= ELF::EF_MIPS_ARCH_64R6;
- else if (Features & Mips::FeatureMips64r2)
+ else if (Features & Mips::FeatureMips64r2 ||
+ Features & Mips::FeatureMips64r3 ||
+ Features & Mips::FeatureMips64r5)
EFlags |= ELF::EF_MIPS_ARCH_64R2;
else if (Features & Mips::FeatureMips64)
EFlags |= ELF::EF_MIPS_ARCH_64;
@@ -359,7 +404,9 @@ MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S,
EFlags |= ELF::EF_MIPS_ARCH_3;
else if (Features & Mips::FeatureMips32r6)
EFlags |= ELF::EF_MIPS_ARCH_32R6;
- else if (Features & Mips::FeatureMips32r2)
+ else if (Features & Mips::FeatureMips32r2 ||
+ Features & Mips::FeatureMips32r3 ||
+ Features & Mips::FeatureMips32r5)
EFlags |= ELF::EF_MIPS_ARCH_32R2;
else if (Features & Mips::FeatureMips32)
EFlags |= ELF::EF_MIPS_ARCH_32;
@@ -368,19 +415,6 @@ MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S,
else
EFlags |= ELF::EF_MIPS_ARCH_1;
- // ABI
- // N64 does not require any ABI bits.
- if (Features & Mips::FeatureO32)
- EFlags |= ELF::EF_MIPS_ABI_O32;
- else if (Features & Mips::FeatureN32)
- EFlags |= ELF::EF_MIPS_ABI2;
-
- if (Features & Mips::FeatureGP64Bit) {
- if (Features & Mips::FeatureO32)
- EFlags |= ELF::EF_MIPS_32BITMODE; /* Compatibility Mode */
- } else if (Features & Mips::FeatureMips64r2 || Features & Mips::FeatureMips64)
- EFlags |= ELF::EF_MIPS_32BITMODE;
-
// Other options.
if (Features & Mips::FeatureNaN2008)
EFlags |= ELF::EF_MIPS_NAN2008;
@@ -388,8 +422,6 @@ MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S,
// -mabicalls and -mplt are not implemented but we should act as if they were
// given.
EFlags |= ELF::EF_MIPS_CPIC;
- if (Features & Mips::FeatureN64)
- EFlags |= ELF::EF_MIPS_PIC;
MCA.setELFHeaderEFlags(EFlags);
}
@@ -424,6 +456,32 @@ void MipsTargetELFStreamer::finish() {
DataSectionData.setAlignment(std::max(16u, DataSectionData.getAlignment()));
BSSSectionData.setAlignment(std::max(16u, BSSSectionData.getAlignment()));
+ uint64_t Features = STI.getFeatureBits();
+
+ // Update e_header flags. See the FIXME and comment above in
+ // the constructor for a full rundown on this.
+ unsigned EFlags = MCA.getELFHeaderEFlags();
+
+ // ABI
+ // N64 does not require any ABI bits.
+ if (getABI().IsO32())
+ EFlags |= ELF::EF_MIPS_ABI_O32;
+ else if (getABI().IsN32())
+ EFlags |= ELF::EF_MIPS_ABI2;
+
+ if (Features & Mips::FeatureGP64Bit) {
+ if (getABI().IsO32())
+ EFlags |= ELF::EF_MIPS_32BITMODE; /* Compatibility Mode */
+ } else if (Features & Mips::FeatureMips64r2 || Features & Mips::FeatureMips64)
+ EFlags |= ELF::EF_MIPS_32BITMODE;
+
+ // If we've set the cpic eflag and we're n64, go ahead and set the pic
+ // one as well.
+ if (EFlags & ELF::EF_MIPS_CPIC && getABI().IsN64())
+ EFlags |= ELF::EF_MIPS_PIC;
+
+ MCA.setELFHeaderEFlags(EFlags);
+
// Emit all the option records.
// At the moment we are only emitting .Mips.options (ODK_REGINFO) and
// .reginfo.
@@ -493,9 +551,8 @@ void MipsTargetELFStreamer::emitDirectiveEnd(StringRef Name) {
MCContext &Context = MCA.getContext();
MCStreamer &OS = getStreamer();
- const MCSectionELF *Sec = Context.getELFSection(".pdr", ELF::SHT_PROGBITS,
- ELF::SHF_ALLOC | ELF::SHT_REL,
- SectionKind::getMetadata());
+ const MCSectionELF *Sec = Context.getELFSection(
+ ".pdr", ELF::SHT_PROGBITS, ELF::SHF_ALLOC | ELF::SHT_REL);
const MCSymbolRefExpr *ExprRef =
MCSymbolRefExpr::Create(Name, MCSymbolRefExpr::VK_None, Context);
@@ -604,7 +661,7 @@ void MipsTargetELFStreamer::emitDirectiveCpLoad(unsigned RegNo) {
// addui $gp, $gp, %lo(_gp_disp)
// addu $gp, $gp, $reg
// when support for position independent code is enabled.
- if (!Pic || (isN32() || isN64()))
+ if (!Pic || (getABI().IsN32() || getABI().IsN64()))
return;
// There's a GNU extension controlled by -mno-shared that allows
@@ -653,7 +710,7 @@ void MipsTargetELFStreamer::emitDirectiveCpsetup(unsigned RegNo,
const MCSymbol &Sym,
bool IsReg) {
// Only N32 and N64 emit anything for .cpsetup iff PIC is set.
- if (!Pic || !(isN32() || isN64()))
+ if (!Pic || !(getABI().IsN32() || getABI().IsN64()))
return;
MCAssembler &MCA = getStreamer().getAssembler();
@@ -677,9 +734,10 @@ void MipsTargetELFStreamer::emitDirectiveCpsetup(unsigned RegNo,
Inst.clear();
const MCSymbolRefExpr *HiExpr = MCSymbolRefExpr::Create(
- Sym.getName(), MCSymbolRefExpr::VK_Mips_GPOFF_HI, MCA.getContext());
+ &Sym, MCSymbolRefExpr::VK_Mips_GPOFF_HI, MCA.getContext());
const MCSymbolRefExpr *LoExpr = MCSymbolRefExpr::Create(
- Sym.getName(), MCSymbolRefExpr::VK_Mips_GPOFF_LO, MCA.getContext());
+ &Sym, MCSymbolRefExpr::VK_Mips_GPOFF_LO, MCA.getContext());
+
// lui $gp, %hi(%neg(%gp_rel(funcSym)))
Inst.setOpcode(Mips::LUi);
Inst.addOperand(MCOperand::CreateReg(Mips::GP));
@@ -709,9 +767,8 @@ void MipsTargetELFStreamer::emitMipsAbiFlags() {
MCAssembler &MCA = getStreamer().getAssembler();
MCContext &Context = MCA.getContext();
MCStreamer &OS = getStreamer();
- const MCSectionELF *Sec =
- Context.getELFSection(".MIPS.abiflags", ELF::SHT_MIPS_ABIFLAGS,
- ELF::SHF_ALLOC, SectionKind::getMetadata(), 24, "");
+ const MCSectionELF *Sec = Context.getELFSection(
+ ".MIPS.abiflags", ELF::SHT_MIPS_ABIFLAGS, ELF::SHF_ALLOC, 24, "");
MCSectionData &ABIShndxSD = MCA.getOrCreateSectionData(*Sec);
ABIShndxSD.setAlignment(8);
OS.SwitchSection(Sec);
generated by cgit v1.1 at 2024-12-22 11:08:04 +0000