LLVM 20.0.0git
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#include "llvm/MC/MCAssembler.h"
Public Types | |
using | SectionListType = SmallVector< MCSection *, 0 > |
using | const_iterator = pointee_iterator< SectionListType::const_iterator > |
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class | MCObjectWriter |
Definition at line 53 of file MCAssembler.h.
Definition at line 57 of file MCAssembler.h.
using llvm::MCAssembler::SectionListType = SmallVector<MCSection *, 0> |
Definition at line 56 of file MCAssembler.h.
MCAssembler::MCAssembler | ( | MCContext & | Context, |
std::unique_ptr< MCAsmBackend > | Backend, | ||
std::unique_ptr< MCCodeEmitter > | Emitter, | ||
std::unique_ptr< MCObjectWriter > | Writer | ||
) |
Construct a new assembler instance.
Definition at line 82 of file MCAssembler.cpp.
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Definition at line 218 of file MCAssembler.h.
References llvm::SmallVectorTemplateCommon< T, typename >::begin().
uint64_t MCAssembler::computeFragmentSize | ( | const MCFragment & | F | ) | const |
Compute the effective fragment size.
Definition at line 249 of file MCAssembler.cpp.
References A, assert(), llvm::MCExpr::evaluateAsValue(), F, llvm::MCFragment::FT_Align, llvm::MCFragment::FT_BoundaryAlign, llvm::MCFragment::FT_CompactEncodedInst, llvm::MCFragment::FT_CVDefRange, llvm::MCFragment::FT_CVInlineLines, llvm::MCFragment::FT_Data, llvm::MCFragment::FT_Dummy, llvm::MCFragment::FT_Dwarf, llvm::MCFragment::FT_DwarfFrame, llvm::MCFragment::FT_Fill, llvm::MCFragment::FT_LEB, llvm::MCFragment::FT_Nops, llvm::MCFragment::FT_Org, llvm::MCFragment::FT_PseudoProbe, llvm::MCFragment::FT_Relaxable, llvm::MCFragment::FT_SymbolId, llvm::MCAlignFragment::getAlignment(), getBackend(), getBackendPtr(), getContext(), getFragmentOffset(), llvm::MCOrgFragment::getLoc(), llvm::MCAlignFragment::getMaxBytesToEmit(), llvm::MCOrgFragment::getOffset(), llvm::MCFragment::getParent(), getSymbolOffset(), llvm::MCAlignFragment::hasEmitNops(), llvm_unreachable, llvm::Offset, llvm::offsetToAlignment(), llvm::MCContext::reportError(), Size, llvm::MCSection::useCodeAlign(), and llvm::Align::value().
Referenced by getSectionAddressSize(), and layoutBundle().
LLVM_DUMP_METHOD void MCAssembler::dump | ( | ) | const |
Definition at line 1324 of file MCAssembler.cpp.
References llvm::MCSection::dump(), llvm::errs(), llvm::First, OS, Sym, and symbols().
Referenced by layout().
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Definition at line 219 of file MCAssembler.h.
References llvm::SmallVectorTemplateCommon< T, typename >::end().
void MCAssembler::Finish | ( | ) |
Finish - Do final processing and write the object to the output stream.
Writer
is used for custom object writer (as the MCJIT does), if not specified it is automatically created from backend.
Definition at line 1021 of file MCAssembler.cpp.
References getWriter(), layout(), and llvm::MCObjectWriter::writeObject().
Referenced by llvm::MCObjectStreamer::finishImpl().
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Definition at line 188 of file MCAssembler.h.
Referenced by computeFragmentSize(), llvm::MCELFStreamer::emitAssemblerFlag(), llvm::MCWasmStreamer::emitAssemblerFlag(), llvm::MCWinCOFFStreamer::emitAssemblerFlag(), llvm::X86_MC::emitInstruction(), llvm::MCObjectStreamer::emitRelocDirective(), llvm::MCXCOFFStreamer::emitXCOFFRefDirective(), layout(), llvm::LoongArchTargetELFStreamer::LoongArchTargetELFStreamer(), llvm::RISCVTargetELFStreamer::RISCVTargetELFStreamer(), and writeFragmentPadding().
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Definition at line 184 of file MCAssembler.h.
Referenced by computeFragmentSize(), layout(), reset(), writeFragmentPadding(), and writeSectionData().
Definition at line 495 of file MCAssembler.cpp.
References A, assert(), llvm::MCExpr::evaluateAsValue(), getContext(), llvm::MCExpr::getLoc(), llvm::MCSymbol::getName(), llvm::MCSymbolRefExpr::getSymbol(), llvm::MCSymbol::isCommon(), and llvm::MCContext::reportError().
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Definition at line 210 of file MCAssembler.h.
Referenced by llvm::MCELFStreamer::emitBundleAlignMode(), layoutBundle(), setSectionAlignmentForBundling(), and writeFragmentPadding().
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Definition at line 182 of file MCAssembler.h.
Referenced by computeFragmentSize(), llvm::MCELFStreamer::emitCommonSymbol(), llvm::MipsTargetELFStreamer::emitDirectiveCpLoad(), llvm::MipsTargetELFStreamer::emitDirectiveCpsetup(), llvm::MipsTargetELFStreamer::emitDirectiveEnd(), llvm::MipsTargetELFStreamer::emitFrame(), llvm::MCELFStreamer::emitIdent(), llvm::MipsTargetELFStreamer::emitMipsAbiFlags(), llvm::MipsTargetELFStreamer::finish(), getBaseSymbol(), llvm::HexagonMCELFStreamer::HexagonMCEmitCommonSymbol(), llvm::MipsTargetELFStreamer::MipsTargetELFStreamer(), and writeSectionData().
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Definition at line 194 of file MCAssembler.h.
Referenced by llvm::MCObjectStreamer::emitDwarfAdvanceLineAddr().
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Definition at line 190 of file MCAssembler.h.
References Emitter.
Referenced by llvm::MCXCOFFStreamer::emitInstToData(), llvm::MCWinCOFFStreamer::emitInstToData(), and llvm::MCObjectStreamer::emitInstToFragment().
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Definition at line 186 of file MCAssembler.h.
References Emitter.
Referenced by llvm::PPCELFStreamer::emitInstruction(), llvm::PPCXCOFFStreamer::emitInstruction(), reset(), and llvm::AMDGPUAsmPrinter::runOnMachineFunction().
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Definition at line 153 of file MCAssembler.h.
References F.
Referenced by computeFragmentSize(), and getSectionAddressSize().
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Definition at line 205 of file MCAssembler.h.
Definition at line 532 of file MCAssembler.cpp.
References assert(), computeFragmentSize(), llvm::MCSection::curFragList(), F, getFragmentOffset(), and llvm::MCSection::FragList::Tail.
Referenced by getSectionFileSize(), and writeSectionData().
Definition at line 539 of file MCAssembler.cpp.
References getSectionAddressSize(), and llvm::MCSection::isVirtualSection().
Referenced by writeSectionData().
Definition at line 489 of file MCAssembler.cpp.
References getSymbolOffsetImpl().
Definition at line 485 of file MCAssembler.cpp.
References getSymbolOffsetImpl().
Referenced by computeFragmentSize().
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Definition at line 192 of file MCAssembler.h.
Referenced by llvm::MCObjectStreamer::emitAddrsig(), llvm::MCObjectStreamer::emitAddrsigSym(), llvm::MCObjectStreamer::emitFileDirective(), Finish(), llvm::MCELFStreamer::getWriter(), llvm::MCWinCOFFStreamer::getWriter(), and layout().
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Definition at line 204 of file MCAssembler.h.
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Definition at line 208 of file MCAssembler.h.
Referenced by canReuseDataFragment(), setSectionAlignmentForBundling(), and writeFragmentPadding().
Check whether a given symbol has been flagged with .thumb_func.
Definition at line 114 of file MCAssembler.cpp.
References llvm::MCExpr::evaluateAsRelocatable(), isThumbFunc(), llvm::Ref, Sym, and llvm::MCSymbolRefExpr::VK_None.
Referenced by isThumbFunc().
void MCAssembler::layout | ( | ) |
Definition at line 887 of file MCAssembler.cpp.
References _, llvm::MCAsmBackend::applyFixup(), assert(), DEBUG_WITH_TYPE, DF, dump(), llvm::errs(), llvm::MCObjectWriter::executePostLayoutBinding(), llvm::MCAsmBackend::finishLayout(), Fixup, llvm::MCFragment::FT_Align, llvm::MCFragment::FT_CVDefRange, llvm::MCFragment::FT_Data, llvm::MCFragment::FT_Dwarf, llvm::MCFragment::FT_DwarfFrame, llvm::MCFragment::FT_LEB, llvm::MCFragment::FT_PseudoProbe, llvm::MCFragment::FT_Relaxable, getBackend(), getBackendPtr(), llvm::MCEncodedFragmentWithContents< ContentsSize >::getContents(), llvm::MCEncodedFragmentWithFixups< ContentsSize, FixupsSize >::getFixups(), llvm::MCEncodedFragment::getSubtargetInfo(), getWriter(), llvm::MCAlignFragment::hasEmitNops(), llvm::MCFragment::hasInstructions(), llvm::List, llvm::MCSection::setOrdinal(), llvm::MCAsmBackend::shouldInsertFixupForCodeAlign(), and llvm::CallingConv::Tail.
Referenced by Finish().
void MCAssembler::layoutBundle | ( | MCFragment * | Prev, |
MCFragment * | F | ||
) | const |
Definition at line 394 of file MCAssembler.cpp.
References assert(), computeBundlePadding(), computeFragmentSize(), DF, F, getBundleAlignSize(), llvm::report_fatal_error(), and llvm::MCEncodedFragment::setBundlePadding().
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Definition at line 105 of file MCAssembler.cpp.
References assert(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().
Referenced by llvm::MCObjectStreamer::changeSectionImpl().
Definition at line 546 of file MCAssembler.cpp.
Referenced by llvm::MCWinCOFFStreamer::changeSection(), llvm::MipsELFStreamer::createPendingLabelRelocs(), llvm::MCObjectStreamer::emitAssignment(), llvm::MCWinCOFFStreamer::emitCOFFSafeSEH(), llvm::MCWinCOFFStreamer::emitCOFFSymbolIndex(), llvm::MCWinCOFFStreamer::emitCOFFSymbolStorageClass(), llvm::MCWinCOFFStreamer::emitCOFFSymbolType(), llvm::MCELFStreamer::emitCommonSymbol(), llvm::MCWinCOFFStreamer::emitCommonSymbol(), llvm::MCXCOFFStreamer::emitCommonSymbol(), llvm::MipsTargetELFStreamer::emitDirectiveCpLoad(), llvm::RISCVTargetELFStreamer::emitDirectiveVariantCC(), llvm::MipsTargetELFStreamer::emitLabel(), llvm::MCObjectStreamer::emitLabel(), llvm::MCObjectStreamer::emitLabelAtPos(), llvm::MCELFStreamer::emitLocalCommonSymbol(), llvm::MCELFStreamer::emitSymbolAttribute(), llvm::MCWasmStreamer::emitSymbolAttribute(), llvm::MCWinCOFFStreamer::emitSymbolAttribute(), llvm::MCXCOFFStreamer::emitSymbolAttribute(), llvm::MCELFStreamer::emitWeakReference(), llvm::MCWasmStreamer::emitWeakReference(), llvm::MCWinCOFFStreamer::emitWeakReference(), llvm::HexagonMCELFStreamer::HexagonMCEmitCommonSymbol(), and llvm::HexagonMCELFStreamer::HexagonMCEmitLocalCommonSymbol().
void MCAssembler::reset | ( | ) |
Reuse an assembler instance.
Definition at line 89 of file MCAssembler.cpp.
References llvm::SmallVectorImpl< T >::clear(), getBackendPtr(), getEmitterPtr(), llvm::MCAsmBackend::reset(), and llvm::MCCodeEmitter::reset().
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Definition at line 212 of file MCAssembler.h.
References assert(), and Size.
Referenced by llvm::MCELFStreamer::emitBundleAlignMode().
Flag a function symbol as the target of a .thumb_func directive.
Definition at line 176 of file MCAssembler.h.
References llvm::SmallPtrSetImpl< PtrType >::insert().
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Definition at line 206 of file MCAssembler.h.
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Definition at line 223 of file MCAssembler.h.
References llvm::make_pointee_range().
Referenced by dump().
void MCAssembler::writeFragmentPadding | ( | raw_ostream & | OS, |
const MCEncodedFragment & | F, | ||
uint64_t | FSize | ||
) | const |
Write the necessary bundle padding to OS
.
Expects a fragment F
containing instructions and its size FSize
.
Definition at line 555 of file MCAssembler.cpp.
References llvm::MCEncodedFragment::alignToBundleEnd(), assert(), getBackend(), getBackendPtr(), getBundleAlignSize(), llvm::MCEncodedFragment::getBundlePadding(), llvm::MCEncodedFragment::getSubtargetInfo(), llvm::MCFragment::hasInstructions(), isBundlingEnabled(), OS, and llvm::report_fatal_error().
void MCAssembler::writeSectionData | ( | raw_ostream & | OS, |
const MCSection * | Section | ||
) | const |
Emit the section contents to OS
.
Definition at line 809 of file MCAssembler.cpp.
References assert(), DF, F, llvm::MCFragment::FT_Align, llvm::MCFragment::FT_Data, llvm::MCFragment::FT_Fill, llvm::MCFragment::FT_Org, getBackendPtr(), getContext(), getSectionAddressSize(), getSectionFileSize(), llvm::MCSection::isVirtualSection(), llvm_unreachable, OS, llvm::MCContext::reportError(), llvm::raw_ostream::tell(), and writeFragment().
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Definition at line 55 of file MCAssembler.h.