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Add support for subsections to the ELF assembler. Fixes PR8717.

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Differential Revision: http://llvm-reviews.chandlerc.com/D598

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179725 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Peter Collingbourne
2013-04-17 21:18:16 +00:00
parent 53c9def433
commit df39be6cb4
30 changed files with 288 additions and 118 deletions
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14
lib/MC/MCStreamer.cpp
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@@ -24,8 +24,7 @@ using namespace llvm;
MCStreamer::MCStreamer(StreamerKind Kind, MCContext &Ctx)
: Kind(Kind), Context(Ctx), EmitEHFrame(true), EmitDebugFrame(false),
CurrentW64UnwindInfo(0), LastSymbol(0), AutoInitSections(false) {
const MCSection *section = 0;
SectionStack.push_back(std::make_pair(section, section));
SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
}
MCStreamer::~MCStreamer() {
@@ -40,9 +39,8 @@ void MCStreamer::reset() {
EmitDebugFrame = false;
CurrentW64UnwindInfo = 0;
LastSymbol = 0;
const MCSection *section = 0;
SectionStack.clear();
SectionStack.push_back(std::make_pair(section, section));
SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
}
const MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context,
@@ -188,15 +186,15 @@ void MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
void MCStreamer::EmitLabel(MCSymbol *Symbol) {
assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
assert(getCurrentSection() && "Cannot emit before setting section!");
Symbol->setSection(*getCurrentSection());
assert(getCurrentSection().first && "Cannot emit before setting section!");
Symbol->setSection(*getCurrentSection().first);
LastSymbol = Symbol;
}
void MCStreamer::EmitDebugLabel(MCSymbol *Symbol) {
assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
assert(getCurrentSection() && "Cannot emit before setting section!");
Symbol->setSection(*getCurrentSection());
assert(getCurrentSection().first && "Cannot emit before setting section!");
Symbol->setSection(*getCurrentSection().first);
LastSymbol = Symbol;
}