//===----------------------------------------------------------------------===//
#include "PPC.h"
-#include "PPCTargetAsmInfo.h"
+#include "PPCMCAsmInfo.h"
#include "PPCTargetMachine.h"
-#include "llvm/Module.h"
#include "llvm/PassManager.h"
-#include "llvm/Target/TargetMachineRegistry.h"
#include "llvm/Target/TargetOptions.h"
+#include "llvm/Target/TargetRegistry.h"
#include "llvm/Support/FormattedStream.h"
using namespace llvm;
-/// PowerPCTargetMachineModule - Note that this is used on hosts that
-/// cannot link in a library unless there are references into the
-/// library. In particular, it seems that it is not possible to get
-/// things to work on Win32 without this. Though it is unused, do not
-/// remove it.
-extern "C" int PowerPCTargetMachineModule;
-int PowerPCTargetMachineModule = 0;
-
-// Register the targets
-extern Target ThePPC32Target;
-static RegisterTarget<PPC32TargetMachine>
-X(ThePPC32Target, "ppc32", "PowerPC 32");
-
-extern Target ThePPC64Target;
-static RegisterTarget<PPC64TargetMachine>
-Y(ThePPC64Target, "ppc64", "PowerPC 64");
-
-// Force static initialization.
-extern "C" void LLVMInitializePowerPCTarget() { }
-
-// No assembler printer by default
-PPCTargetMachine::AsmPrinterCtorFn PPCTargetMachine::AsmPrinterCtor = 0;
-
-const TargetAsmInfo *PPCTargetMachine::createTargetAsmInfo() const {
- if (Subtarget.isDarwin())
- return new PPCDarwinTargetAsmInfo(*this);
- else
- return new PPCLinuxTargetAsmInfo(*this);
+static const MCAsmInfo *createMCAsmInfo(const Target &T, StringRef TT) {
+ Triple TheTriple(TT);
+ bool isPPC64 = TheTriple.getArch() == Triple::ppc64;
+ if (TheTriple.getOS() == Triple::Darwin)
+ return new PPCMCAsmInfoDarwin(isPPC64);
+ return new PPCLinuxMCAsmInfo(isPPC64);
+
+}
+
+extern "C" void LLVMInitializePowerPCTarget() {
+ // Register the targets
+ RegisterTargetMachine<PPC32TargetMachine> A(ThePPC32Target);
+ RegisterTargetMachine<PPC64TargetMachine> B(ThePPC64Target);
+
+ RegisterAsmInfoFn C(ThePPC32Target, createMCAsmInfo);
+ RegisterAsmInfoFn D(ThePPC64Target, createMCAsmInfo);
}
-PPCTargetMachine::PPCTargetMachine(const Target&T, const Module &M,
+
+PPCTargetMachine::PPCTargetMachine(const Target &T, const std::string &TT,
const std::string &FS, bool is64Bit)
- : LLVMTargetMachine(T),
- Subtarget(*this, M, FS, is64Bit),
+ : LLVMTargetMachine(T, TT),
+ Subtarget(TT, FS, is64Bit),
DataLayout(Subtarget.getTargetDataString()), InstrInfo(*this),
FrameInfo(*this, is64Bit), JITInfo(*this, is64Bit), TLInfo(*this),
InstrItins(Subtarget.getInstrItineraryData()), MachOWriterInfo(*this) {
/// groups, which typically degrades performance.
bool PPCTargetMachine::getEnableTailMergeDefault() const { return false; }
-PPC32TargetMachine::PPC32TargetMachine(const Target &T, const Module &M,
+PPC32TargetMachine::PPC32TargetMachine(const Target &T, const std::string &TT,
const std::string &FS)
- : PPCTargetMachine(T, M, FS, false) {
+ : PPCTargetMachine(T, TT, FS, false) {
}
-PPC64TargetMachine::PPC64TargetMachine(const Target &T, const Module &M,
+PPC64TargetMachine::PPC64TargetMachine(const Target &T, const std::string &TT,
const std::string &FS)
- : PPCTargetMachine(T, M, FS, true) {
+ : PPCTargetMachine(T, TT, FS, true) {
}
return false;
}
-bool PPCTargetMachine::addAssemblyEmitter(PassManagerBase &PM,
- CodeGenOpt::Level OptLevel,
- bool Verbose,
- formatted_raw_ostream &Out) {
- assert(AsmPrinterCtor && "AsmPrinter was not linked in");
- if (AsmPrinterCtor)
- PM.add(AsmPrinterCtor(Out, *this, Verbose));
-
- return false;
-}
-
bool PPCTargetMachine::addCodeEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
- bool DumpAsm, MachineCodeEmitter &MCE) {
+ MachineCodeEmitter &MCE) {
// The JIT should use the static relocation model in ppc32 mode, PIC in ppc64.
// FIXME: This should be moved to TargetJITInfo!!
if (Subtarget.isPPC64()) {
// Machine code emitter pass for PowerPC.
PM.add(createPPCCodeEmitterPass(*this, MCE));
- if (DumpAsm)
- addAssemblyEmitter(PM, OptLevel, true, ferrs());
return false;
}
bool PPCTargetMachine::addCodeEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
- bool DumpAsm, JITCodeEmitter &JCE) {
+ JITCodeEmitter &JCE) {
// The JIT should use the static relocation model in ppc32 mode, PIC in ppc64.
// FIXME: This should be moved to TargetJITInfo!!
if (Subtarget.isPPC64()) {
// Machine code emitter pass for PowerPC.
PM.add(createPPCJITCodeEmitterPass(*this, JCE));
- if (DumpAsm)
- addAssemblyEmitter(PM, OptLevel, true, ferrs());
return false;
}
bool PPCTargetMachine::addCodeEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
- bool DumpAsm, ObjectCodeEmitter &OCE) {
+ ObjectCodeEmitter &OCE) {
// The JIT should use the static relocation model in ppc32 mode, PIC in ppc64.
// FIXME: This should be moved to TargetJITInfo!!
if (Subtarget.isPPC64()) {
// Machine code emitter pass for PowerPC.
PM.add(createPPCObjectCodeEmitterPass(*this, OCE));
- if (DumpAsm)
- addAssemblyEmitter(PM, OptLevel, true, ferrs());
return false;
}
bool PPCTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
- bool DumpAsm,
MachineCodeEmitter &MCE) {
// Machine code emitter pass for PowerPC.
PM.add(createPPCCodeEmitterPass(*this, MCE));
- if (DumpAsm)
- addAssemblyEmitter(PM, OptLevel, true, ferrs());
-
return false;
}
bool PPCTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
- bool DumpAsm,
JITCodeEmitter &JCE) {
// Machine code emitter pass for PowerPC.
PM.add(createPPCJITCodeEmitterPass(*this, JCE));
- if (DumpAsm)
- addAssemblyEmitter(PM, OptLevel, true, ferrs());
-
return false;
}
bool PPCTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
- bool DumpAsm,
ObjectCodeEmitter &OCE) {
// Machine code emitter pass for PowerPC.
PM.add(createPPCObjectCodeEmitterPass(*this, OCE));
- if (DumpAsm)
- addAssemblyEmitter(PM, OptLevel, true, ferrs());
-
return false;
}
-
+/// getLSDAEncoding - Returns the LSDA pointer encoding. The choices are 4-byte,
+/// 8-byte, and target default. The CIE is hard-coded to indicate that the LSDA
+/// pointer in the FDE section is an "sdata4", and should be encoded as a 4-byte
+/// pointer by default. However, some systems may require a different size due
+/// to bugs or other conditions. We will default to a 4-byte encoding unless the
+/// system tells us otherwise.
+///
+/// The issue is when the CIE says their is an LSDA. That mandates that every
+/// FDE have an LSDA slot. But if the function does not need an LSDA. There
+/// needs to be some way to signify there is none. The LSDA is encoded as
+/// pc-rel. But you don't look for some magic value after adding the pc. You
+/// have to look for a zero before adding the pc. The problem is that the size
+/// of the zero to look for depends on the encoding. The unwinder bug in SL is
+/// that it always checks for a pointer-size zero. So on x86_64 it looks for 8
+/// bytes of zero. If you have an LSDA, it works fine since the 8-bytes are
+/// non-zero so it goes ahead and then reads the value based on the encoding.
+/// But if you use sdata4 and there is no LSDA, then the test for zero gives a
+/// false negative and the unwinder thinks there is an LSDA.
+///
+/// FIXME: This call-back isn't good! We should be using the correct encoding
+/// regardless of the system. However, there are some systems which have bugs
+/// that prevent this from occuring.
+DwarfLSDAEncoding::Encoding PPCTargetMachine::getLSDAEncoding() const {
+ if (Subtarget.isDarwin() && Subtarget.getDarwinVers() != 10)
+ return DwarfLSDAEncoding::Default;
+
+ return DwarfLSDAEncoding::EightByte;
+}
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