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3b07b5214c
implementations that need it, rearrange ELFTAI. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77236 91177308-0d34-0410-b5e6-96231b3b80d8
110 lines
3.8 KiB
C++
110 lines
3.8 KiB
C++
//===-- COFFTargetAsmInfo.cpp - COFF asm properties -------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines target asm properties related what form asm statements
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// should take in general on COFF-based targets
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Target/COFFTargetAsmInfo.h"
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#include "llvm/ADT/SmallVector.h"
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using namespace llvm;
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COFFTargetAsmInfo::COFFTargetAsmInfo(const TargetMachine &TM)
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: TargetAsmInfo(TM) {
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TextSection = getOrCreateSection("_text", true, SectionKind::Text);
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DataSection = getOrCreateSection("_data", true, SectionKind::DataRel);
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GlobalPrefix = "_";
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LCOMMDirective = "\t.lcomm\t";
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COMMDirectiveTakesAlignment = false;
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HasDotTypeDotSizeDirective = false;
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HasSingleParameterDotFile = false;
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StaticCtorsSection = "\t.section .ctors,\"aw\"";
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StaticDtorsSection = "\t.section .dtors,\"aw\"";
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HiddenDirective = NULL;
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PrivateGlobalPrefix = "L"; // Prefix for private global symbols
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WeakRefDirective = "\t.weak\t";
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SetDirective = "\t.set\t";
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// Set up DWARF directives
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HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
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AbsoluteDebugSectionOffsets = true;
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AbsoluteEHSectionOffsets = false;
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SupportsDebugInformation = true;
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DwarfSectionOffsetDirective = "\t.secrel32\t";
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DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"dr\"";
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DwarfInfoSection = "\t.section\t.debug_info,\"dr\"";
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DwarfLineSection = "\t.section\t.debug_line,\"dr\"";
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DwarfFrameSection = "\t.section\t.debug_frame,\"dr\"";
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DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"dr\"";
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DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"dr\"";
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DwarfStrSection = "\t.section\t.debug_str,\"dr\"";
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DwarfLocSection = "\t.section\t.debug_loc,\"dr\"";
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DwarfARangesSection = "\t.section\t.debug_aranges,\"dr\"";
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DwarfRangesSection = "\t.section\t.debug_ranges,\"dr\"";
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DwarfMacroInfoSection = "\t.section\t.debug_macinfo,\"dr\"";
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}
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void COFFTargetAsmInfo::getSectionFlagsAsString(SectionKind Kind,
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SmallVectorImpl<char> &Str) const {
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// FIXME: Inefficient.
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std::string Res = ",\"";
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if (Kind.isText())
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Res += 'x';
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if (Kind.isWriteable())
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Res += 'w';
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Res += "\"";
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Str.append(Res.begin(), Res.end());
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}
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//===----------------------------------------------------------------------===//
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// Move to AsmPrinter (mangler access).
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//===----------------------------------------------------------------------===//
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#include "llvm/GlobalVariable.h"
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static const char *getSectionPrefixForUniqueGlobal(SectionKind Kind) {
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if (Kind.isText())
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return ".text$linkonce";
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if (Kind.isWriteable())
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return ".data$linkonce";
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return ".rdata$linkonce";
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}
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const Section *
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COFFTargetAsmInfo::SelectSectionForGlobal(const GlobalValue *GV,
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SectionKind Kind) const {
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assert(!Kind.isThreadLocal() && "Doesn't support TLS");
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// If this global is linkonce/weak and the target handles this by emitting it
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// into a 'uniqued' section name, create and return the section now.
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if (Kind.isWeak()) {
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const char *Prefix = getSectionPrefixForUniqueGlobal(Kind);
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// FIXME: Use mangler interface (PR4584).
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std::string Name = Prefix+GV->getNameStr();
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return getOrCreateSection(Name.c_str(), false, Kind.getKind());
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}
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if (Kind.isText())
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return getTextSection();
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if (Kind.isBSS())
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if (const Section *S = getBSSSection_())
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return S;
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if (Kind.isReadOnly())
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if (const Section *S = getReadOnlySection())
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return S;
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return getDataSection();
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}
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