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https://github.com/c64scene-ar/llvm-6502.git
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Compute the ELF SectionKind from the flags.
Any code creating an MCSectionELF knows ELF and already provides the flags. SectionKind is an abstraction used by common code that uses a plain MCSection. Use the flags to compute the SectionKind. This removes a lot of guessing and boilerplate from the MCSectionELF construction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227476 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
@@ -416,83 +416,54 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
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// ELF
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BSSSection =
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Ctx->getELFSection(".bss", ELF::SHT_NOBITS,
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ELF::SHF_WRITE | ELF::SHF_ALLOC,
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SectionKind::getBSS());
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BSSSection = Ctx->getELFSection(".bss", ELF::SHT_NOBITS,
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ELF::SHF_WRITE | ELF::SHF_ALLOC);
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TextSection =
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Ctx->getELFSection(".text", ELF::SHT_PROGBITS,
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ELF::SHF_EXECINSTR |
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ELF::SHF_ALLOC,
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SectionKind::getText());
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TextSection = Ctx->getELFSection(".text", ELF::SHT_PROGBITS,
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ELF::SHF_EXECINSTR | ELF::SHF_ALLOC);
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DataSection =
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Ctx->getELFSection(".data", ELF::SHT_PROGBITS,
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ELF::SHF_WRITE |ELF::SHF_ALLOC,
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SectionKind::getDataRel());
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DataSection = Ctx->getELFSection(".data", ELF::SHT_PROGBITS,
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ELF::SHF_WRITE | ELF::SHF_ALLOC);
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ReadOnlySection =
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Ctx->getELFSection(".rodata", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC,
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SectionKind::getReadOnly());
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Ctx->getELFSection(".rodata", ELF::SHT_PROGBITS, ELF::SHF_ALLOC);
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TLSDataSection =
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Ctx->getELFSection(".tdata", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC | ELF::SHF_TLS |
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ELF::SHF_WRITE,
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SectionKind::getThreadData());
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Ctx->getELFSection(".tdata", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC | ELF::SHF_TLS | ELF::SHF_WRITE);
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TLSBSSSection =
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Ctx->getELFSection(".tbss", ELF::SHT_NOBITS,
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ELF::SHF_ALLOC | ELF::SHF_TLS |
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ELF::SHF_WRITE,
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SectionKind::getThreadBSS());
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TLSBSSSection = Ctx->getELFSection(
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".tbss", ELF::SHT_NOBITS, ELF::SHF_ALLOC | ELF::SHF_TLS | ELF::SHF_WRITE);
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DataRelSection =
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Ctx->getELFSection(".data.rel", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC |ELF::SHF_WRITE,
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SectionKind::getDataRel());
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DataRelSection = Ctx->getELFSection(".data.rel", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC | ELF::SHF_WRITE);
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DataRelLocalSection =
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Ctx->getELFSection(".data.rel.local", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC |ELF::SHF_WRITE,
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SectionKind::getDataRelLocal());
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DataRelLocalSection = Ctx->getELFSection(".data.rel.local", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC | ELF::SHF_WRITE);
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DataRelROSection =
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Ctx->getELFSection(".data.rel.ro", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC |ELF::SHF_WRITE,
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SectionKind::getReadOnlyWithRel());
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DataRelROSection = Ctx->getELFSection(".data.rel.ro", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC | ELF::SHF_WRITE);
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DataRelROLocalSection =
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Ctx->getELFSection(".data.rel.ro.local", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC |ELF::SHF_WRITE,
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SectionKind::getReadOnlyWithRelLocal());
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DataRelROLocalSection = Ctx->getELFSection(
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".data.rel.ro.local", ELF::SHT_PROGBITS, ELF::SHF_ALLOC | ELF::SHF_WRITE);
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MergeableConst4Section =
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Ctx->getELFSection(".rodata.cst4", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC |ELF::SHF_MERGE,
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SectionKind::getMergeableConst4());
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Ctx->getELFSection(".rodata.cst4", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC | ELF::SHF_MERGE, 4, "");
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MergeableConst8Section =
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Ctx->getELFSection(".rodata.cst8", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC |ELF::SHF_MERGE,
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SectionKind::getMergeableConst8());
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Ctx->getELFSection(".rodata.cst8", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC | ELF::SHF_MERGE, 8, "");
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MergeableConst16Section =
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Ctx->getELFSection(".rodata.cst16", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC |ELF::SHF_MERGE,
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SectionKind::getMergeableConst16());
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Ctx->getELFSection(".rodata.cst16", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC | ELF::SHF_MERGE, 16, "");
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StaticCtorSection =
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Ctx->getELFSection(".ctors", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC |ELF::SHF_WRITE,
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SectionKind::getDataRel());
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StaticCtorSection = Ctx->getELFSection(".ctors", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC | ELF::SHF_WRITE);
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StaticDtorSection =
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Ctx->getELFSection(".dtors", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC |ELF::SHF_WRITE,
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SectionKind::getDataRel());
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StaticDtorSection = Ctx->getELFSection(".dtors", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC | ELF::SHF_WRITE);
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// Exception Handling Sections.
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@@ -500,103 +471,68 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
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// it contains relocatable pointers. In PIC mode, this is probably a big
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// runtime hit for C++ apps. Either the contents of the LSDA need to be
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// adjusted or this should be a data section.
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LSDASection =
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Ctx->getELFSection(".gcc_except_table", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC,
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SectionKind::getReadOnly());
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LSDASection = Ctx->getELFSection(".gcc_except_table", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC);
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COFFDebugSymbolsSection = nullptr;
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// Debug Info Sections.
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DwarfAbbrevSection =
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Ctx->getELFSection(".debug_abbrev", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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DwarfInfoSection =
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Ctx->getELFSection(".debug_info", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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DwarfLineSection =
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Ctx->getELFSection(".debug_line", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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DwarfFrameSection =
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Ctx->getELFSection(".debug_frame", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_abbrev", ELF::SHT_PROGBITS, 0);
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DwarfInfoSection = Ctx->getELFSection(".debug_info", ELF::SHT_PROGBITS, 0);
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DwarfLineSection = Ctx->getELFSection(".debug_line", ELF::SHT_PROGBITS, 0);
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DwarfFrameSection = Ctx->getELFSection(".debug_frame", ELF::SHT_PROGBITS, 0);
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DwarfPubNamesSection =
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Ctx->getELFSection(".debug_pubnames", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_pubnames", ELF::SHT_PROGBITS, 0);
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DwarfPubTypesSection =
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Ctx->getELFSection(".debug_pubtypes", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_pubtypes", ELF::SHT_PROGBITS, 0);
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DwarfGnuPubNamesSection =
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Ctx->getELFSection(".debug_gnu_pubnames", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_gnu_pubnames", ELF::SHT_PROGBITS, 0);
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DwarfGnuPubTypesSection =
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Ctx->getELFSection(".debug_gnu_pubtypes", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_gnu_pubtypes", ELF::SHT_PROGBITS, 0);
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DwarfStrSection =
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Ctx->getELFSection(".debug_str", ELF::SHT_PROGBITS,
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ELF::SHF_MERGE | ELF::SHF_STRINGS,
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SectionKind::getMergeable1ByteCString());
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DwarfLocSection =
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Ctx->getELFSection(".debug_loc", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_str", ELF::SHT_PROGBITS,
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ELF::SHF_MERGE | ELF::SHF_STRINGS, 1, "");
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DwarfLocSection = Ctx->getELFSection(".debug_loc", ELF::SHT_PROGBITS, 0);
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DwarfARangesSection =
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Ctx->getELFSection(".debug_aranges", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_aranges", ELF::SHT_PROGBITS, 0);
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DwarfRangesSection =
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Ctx->getELFSection(".debug_ranges", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_ranges", ELF::SHT_PROGBITS, 0);
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DwarfMacroInfoSection =
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Ctx->getELFSection(".debug_macinfo", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_macinfo", ELF::SHT_PROGBITS, 0);
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// DWARF5 Experimental Debug Info
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// Accelerator Tables
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DwarfAccelNamesSection =
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Ctx->getELFSection(".apple_names", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".apple_names", ELF::SHT_PROGBITS, 0);
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DwarfAccelObjCSection =
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Ctx->getELFSection(".apple_objc", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".apple_objc", ELF::SHT_PROGBITS, 0);
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DwarfAccelNamespaceSection =
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Ctx->getELFSection(".apple_namespaces", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".apple_namespaces", ELF::SHT_PROGBITS, 0);
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DwarfAccelTypesSection =
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Ctx->getELFSection(".apple_types", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".apple_types", ELF::SHT_PROGBITS, 0);
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// Fission Sections
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DwarfInfoDWOSection =
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Ctx->getELFSection(".debug_info.dwo", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_info.dwo", ELF::SHT_PROGBITS, 0);
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DwarfTypesDWOSection =
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Ctx->getELFSection(".debug_types.dwo", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_types.dwo", ELF::SHT_PROGBITS, 0);
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DwarfAbbrevDWOSection =
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Ctx->getELFSection(".debug_abbrev.dwo", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_abbrev.dwo", ELF::SHT_PROGBITS, 0);
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DwarfStrDWOSection =
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Ctx->getELFSection(".debug_str.dwo", ELF::SHT_PROGBITS,
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ELF::SHF_MERGE | ELF::SHF_STRINGS,
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SectionKind::getMergeable1ByteCString());
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Ctx->getELFSection(".debug_str.dwo", ELF::SHT_PROGBITS,
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ELF::SHF_MERGE | ELF::SHF_STRINGS, 1, "");
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DwarfLineDWOSection =
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Ctx->getELFSection(".debug_line.dwo", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_line.dwo", ELF::SHT_PROGBITS, 0);
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DwarfLocDWOSection =
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Ctx->getELFSection(".debug_loc.dwo", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_loc.dwo", ELF::SHT_PROGBITS, 0);
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DwarfStrOffDWOSection =
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Ctx->getELFSection(".debug_str_offsets.dwo", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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DwarfAddrSection =
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Ctx->getELFSection(".debug_addr", ELF::SHT_PROGBITS, 0,
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SectionKind::getMetadata());
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Ctx->getELFSection(".debug_str_offsets.dwo", ELF::SHT_PROGBITS, 0);
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DwarfAddrSection = Ctx->getELFSection(".debug_addr", ELF::SHT_PROGBITS, 0);
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StackMapSection =
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Ctx->getELFSection(".llvm_stackmaps", ELF::SHT_PROGBITS,
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ELF::SHF_ALLOC,
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SectionKind::getMetadata());
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Ctx->getELFSection(".llvm_stackmaps", ELF::SHT_PROGBITS, ELF::SHF_ALLOC);
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}
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@@ -884,7 +820,7 @@ void MCObjectFileInfo::InitMCObjectFileInfo(StringRef T, Reloc::Model relocm,
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const MCSection *MCObjectFileInfo::getDwarfTypesSection(uint64_t Hash) const {
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return Ctx->getELFSection(".debug_types", ELF::SHT_PROGBITS, ELF::SHF_GROUP,
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SectionKind::getMetadata(), 0, utostr(Hash));
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0, utostr(Hash));
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}
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void MCObjectFileInfo::InitEHFrameSection() {
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@@ -898,9 +834,7 @@ void MCObjectFileInfo::InitEHFrameSection() {
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SectionKind::getReadOnly());
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else if (Env == IsELF)
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EHFrameSection =
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Ctx->getELFSection(".eh_frame", EHSectionType,
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EHSectionFlags,
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SectionKind::getDataRel());
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Ctx->getELFSection(".eh_frame", EHSectionType, EHSectionFlags);
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else
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EHFrameSection =
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Ctx->getCOFFSection(".eh_frame",
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