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switch ppc to using SwitchToSection instead of textual section stuff.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78013 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-08-03 22:52:21 +00:00
parent 4771e16fa9
commit 2dfddee396
1 changed files with 43 additions and 14 deletions
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57
lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp
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@ -854,14 +854,22 @@ bool PPCDarwinAsmPrinter::doInitialization(Module &M) {
// Prime text sections so they are adjacent. This reduces the likelihood a // Prime text sections so they are adjacent. This reduces the likelihood a
// large data or debug section causes a branch to exceed 16M limit. // large data or debug section causes a branch to exceed 16M limit.
SwitchToTextSection("\t.section __TEXT,__textcoal_nt,coalesced,"
"pure_instructions"); TargetLoweringObjectFileMachO &TLOFMacho =
static_cast<TargetLoweringObjectFileMachO &>(getObjFileLowering());
SwitchToSection(TLOFMacho.getMachOSection("\t.section __TEXT,__textcoal_nt,"
"coalesced,pure_instructions", true,
SectionKind::getText()));
if (TM.getRelocationModel() == Reloc::PIC_) { if (TM.getRelocationModel() == Reloc::PIC_) {
SwitchToTextSection("\t.section __TEXT,__picsymbolstub1,symbol_stubs," SwitchToSection(TLOFMacho.getMachOSection("\t.section __TEXT,__picsymbolstu"
"pure_instructions,32"); "b1,symbol_stubs,"
"pure_instructions,32", true,
SectionKind::getText()));
} else if (TM.getRelocationModel() == Reloc::DynamicNoPIC) { } else if (TM.getRelocationModel() == Reloc::DynamicNoPIC) {
SwitchToTextSection("\t.section __TEXT,__symbol_stub1,symbol_stubs," SwitchToSection(TLOFMacho.getMachOSection("\t.section __TEXT,__symbol_stub1"
"pure_instructions,16"); ",symbol_stubs,"
"pure_instructions,16", true,
SectionKind::getText()));
} }
SwitchToSection(getObjFileLowering().getTextSection()); SwitchToSection(getObjFileLowering().getTextSection());
@ -980,12 +988,23 @@ bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
bool isPPC64 = TD->getPointerSizeInBits() == 64; bool isPPC64 = TD->getPointerSizeInBits() == 64;
// Darwin/PPC always uses mach-o.
TargetLoweringObjectFileMachO &TLOFMacho =
static_cast<TargetLoweringObjectFileMachO &>(getObjFileLowering());
// Output stubs for dynamically-linked functions // Output stubs for dynamically-linked functions
if (TM.getRelocationModel() == Reloc::PIC_ && !FnStubs.empty()) { if (TM.getRelocationModel() == Reloc::PIC_ && !FnStubs.empty()) {
const MCSection *StubSection =
TLOFMacho.getMachOSection("\t.section __TEXT,__picsymbolstub1,"
"symbol_stubs,pure_instructions,32", true,
SectionKind::getText());
const MCSection *LSPSection =
TLOFMacho.getMachOSection(".lazy_symbol_pointer", true,
SectionKind::getMetadata());
for (StringMap<FnStubInfo>::iterator I = FnStubs.begin(), E = FnStubs.end(); for (StringMap<FnStubInfo>::iterator I = FnStubs.begin(), E = FnStubs.end();
I != E; ++I) { I != E; ++I) {
SwitchToTextSection("\t.section __TEXT,__picsymbolstub1,symbol_stubs," SwitchToSection(StubSection);
"pure_instructions,32");
EmitAlignment(4); EmitAlignment(4);
const FnStubInfo &Info = I->second; const FnStubInfo &Info = I->second;
O << Info.Stub << ":\n"; O << Info.Stub << ":\n";
@ -1002,16 +1021,23 @@ bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
O << "\tmtctr r12\n"; O << "\tmtctr r12\n";
O << "\tbctr\n"; O << "\tbctr\n";
SwitchToDataSection(".lazy_symbol_pointer"); SwitchToSection(LSPSection);
O << Info.LazyPtr << ":\n"; O << Info.LazyPtr << ":\n";
O << "\t.indirect_symbol " << I->getKeyData() << '\n'; O << "\t.indirect_symbol " << I->getKeyData() << '\n';
O << (isPPC64 ? "\t.quad" : "\t.long") << " dyld_stub_binding_helper\n"; O << (isPPC64 ? "\t.quad" : "\t.long") << " dyld_stub_binding_helper\n";
} }
} else if (!FnStubs.empty()) { } else if (!FnStubs.empty()) {
const MCSection *StubSection =
TLOFMacho.getMachOSection("\t.section __TEXT,__symbol_stub1,symbol_stubs,"
"pure_instructions,16", true,
SectionKind::getText());
const MCSection *LSPSection =
TLOFMacho.getMachOSection(".lazy_symbol_pointer", true,
SectionKind::getMetadata());
for (StringMap<FnStubInfo>::iterator I = FnStubs.begin(), E = FnStubs.end(); for (StringMap<FnStubInfo>::iterator I = FnStubs.begin(), E = FnStubs.end();
I != E; ++I) { I != E; ++I) {
SwitchToTextSection("\t.section __TEXT,__symbol_stub1,symbol_stubs," SwitchToSection(StubSection);
"pure_instructions,16");
EmitAlignment(4); EmitAlignment(4);
const FnStubInfo &Info = I->second; const FnStubInfo &Info = I->second;
O << Info.Stub << ":\n"; O << Info.Stub << ":\n";
@ -1021,7 +1047,7 @@ bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
O << Info.LazyPtr << ")(r11)\n"; O << Info.LazyPtr << ")(r11)\n";
O << "\tmtctr r12\n"; O << "\tmtctr r12\n";
O << "\tbctr\n"; O << "\tbctr\n";
SwitchToDataSection(".lazy_symbol_pointer"); SwitchToSection(LSPSection);
O << Info.LazyPtr << ":\n"; O << Info.LazyPtr << ":\n";
O << "\t.indirect_symbol " << I->getKeyData() << '\n'; O << "\t.indirect_symbol " << I->getKeyData() << '\n';
O << (isPPC64 ? "\t.quad" : "\t.long") << " dyld_stub_binding_helper\n"; O << (isPPC64 ? "\t.quad" : "\t.long") << " dyld_stub_binding_helper\n";
@ -1042,9 +1068,12 @@ bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
} }
} }
// Output stubs for external and common global variables. // Output macho stubs for external and common global variables.
if (!GVStubs.empty()) { if (!GVStubs.empty()) {
SwitchToDataSection(".non_lazy_symbol_pointer"); const MCSection *TheSection =
TLOFMacho.getMachOSection(".non_lazy_symbol_pointer", true,
SectionKind::getMetadata());
SwitchToSection(TheSection);
for (StringMap<std::string>::iterator I = GVStubs.begin(), for (StringMap<std::string>::iterator I = GVStubs.begin(),
E = GVStubs.end(); I != E; ++I) { E = GVStubs.end(); I != E; ++I) {
O << I->second << ":\n"; O << I->second << ":\n";