[MC/Mach-O] Implement integrated assembler support for linker options.

- Also, fixup syntax errors in LangRef and missing newline in the MCAsmStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172837 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar
2013-01-18 19:37:00 +00:00
parent 55c6f0c614
commit 6d49b680be
4 changed files with 65 additions and 10 deletions

View File

@ -406,14 +406,14 @@ TargetLoweringObjectFileELF::InitializeELF(bool UseInitArray_) {
// MachO
//===----------------------------------------------------------------------===//
/// emitModuleFlags - Emit the module flags that specify the garbage collection
/// information.
/// emitModuleFlags - Perform code emission for module flags.
void TargetLoweringObjectFileMachO::
emitModuleFlags(MCStreamer &Streamer,
ArrayRef<Module::ModuleFlagEntry> ModuleFlags,
Mangler *Mang, const TargetMachine &TM) const {
unsigned VersionVal = 0;
unsigned ImageInfoFlags = 0;
MDNode *LinkerOptions = 0;
StringRef SectionVal;
for (ArrayRef<Module::ModuleFlagEntry>::iterator
@ -427,14 +427,33 @@ emitModuleFlags(MCStreamer &Streamer,
StringRef Key = MFE.Key->getString();
Value *Val = MFE.Val;
if (Key == "Objective-C Image Info Version")
if (Key == "Objective-C Image Info Version") {
VersionVal = cast<ConstantInt>(Val)->getZExtValue();
else if (Key == "Objective-C Garbage Collection" ||
Key == "Objective-C GC Only" ||
Key == "Objective-C Is Simulated")
} else if (Key == "Objective-C Garbage Collection" ||
Key == "Objective-C GC Only" ||
Key == "Objective-C Is Simulated") {
ImageInfoFlags |= cast<ConstantInt>(Val)->getZExtValue();
else if (Key == "Objective-C Image Info Section")
} else if (Key == "Objective-C Image Info Section") {
SectionVal = cast<MDString>(Val)->getString();
} else if (Key == "Linker Options") {
LinkerOptions = cast<MDNode>(Val);
}
}
// Emit the linker options if present.
if (LinkerOptions) {
for (unsigned i = 0, e = LinkerOptions->getNumOperands(); i != e; ++i) {
MDNode *MDOptions = cast<MDNode>(LinkerOptions->getOperand(i));
SmallVector<std::string, 4> StrOptions;
// Convert to strings.
for (unsigned ii = 0, ie = MDOptions->getNumOperands(); ii != ie; ++ii) {
MDString *MDOption = cast<MDString>(MDOptions->getOperand(ii));
StrOptions.push_back(MDOption->getString());
}
Streamer.EmitLinkerOptions(StrOptions);
}
}
// The section is mandatory. If we don't have it, then we don't have GC info.