//===----------------------------------------------------------------------===//
#include "llvm/MC/MCObjectFileInfo.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSectionMachO.h"
-#include "llvm/ADT/Triple.h"
using namespace llvm;
void MCObjectFileInfo::InitMachOMCObjectFileInfo(Triple T) {
= Ctx->getMachOSection("__DATA", "__data", 0,
SectionKind::getDataRel());
+ // BSSSection might not be expected initialized on msvc.
+ BSSSection = 0;
+
TLSDataSection // .tdata
= Ctx->getMachOSection("__DATA", "__thread_data",
MCSectionMachO::S_THREAD_LOCAL_REGULAR,
// to using it in -static mode.
SixteenByteConstantSection = 0;
if (RelocM != Reloc::Static &&
- T.getArch() != Triple::x86_64 && T.getArch() != Triple::ppc64)
+ T.getArch() != Triple::x86_64 && T.getArch() != Triple::ppc64 &&
+ T.getArch() != Triple::ppc64le)
SixteenByteConstantSection = // .literal16
Ctx->getMachOSection("__TEXT", "__literal16",
MCSectionMachO::S_16BYTE_LITERALS,
LSDASection = Ctx->getMachOSection("__TEXT", "__gcc_except_tab", 0,
SectionKind::getReadOnlyWithRel());
- if (T.isMacOSX() && !T.isMacOSXVersionLT(10, 6))
+ if (T.isMacOSX() && !T.isMacOSXVersionLT(10, 6)) {
CompactUnwindSection =
Ctx->getMachOSection("__LD", "__compact_unwind",
MCSectionMachO::S_ATTR_DEBUG,
SectionKind::getReadOnly());
+ if (T.getArch() == Triple::x86_64 || T.getArch() == Triple::x86)
+ CompactUnwindDwarfEHFrameOnly = 0x04000000;
+ }
+
// Debug Information.
DwarfAccelNamesSection =
Ctx->getMachOSection("__DWARF", "__apple_names",
Ctx->getMachOSection("__DWARF", "__debug_frame",
MCSectionMachO::S_ATTR_DEBUG,
SectionKind::getMetadata());
+ DwarfPubNamesSection =
+ Ctx->getMachOSection("__DWARF", "__debug_pubnames",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfPubTypesSection =
Ctx->getMachOSection("__DWARF", "__debug_pubtypes",
MCSectionMachO::S_ATTR_DEBUG,
SectionKind::getMetadata());
+ DwarfGnuPubNamesSection =
+ Ctx->getMachOSection("__DWARF", "__debug_gnu_pubn",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
+ DwarfGnuPubTypesSection =
+ Ctx->getMachOSection("__DWARF", "__debug_gnu_pubt",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfStrSection =
Ctx->getMachOSection("__DWARF", "__debug_str",
MCSectionMachO::S_ATTR_DEBUG,
Ctx->getMachOSection("__DWARF", "__debug_inlined",
MCSectionMachO::S_ATTR_DEBUG,
SectionKind::getMetadata());
+ StackMapSection =
+ Ctx->getMachOSection("__LLVM_STACKMAPS", "__llvm_stackmaps", 0,
+ SectionKind::getMetadata());
TLSExtraDataSection = TLSTLVSection;
}
void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
+ if (T.getArch() == Triple::mips ||
+ T.getArch() == Triple::mipsel)
+ FDECFIEncoding = dwarf::DW_EH_PE_sdata4;
+ else if (T.getArch() == Triple::mips64 ||
+ T.getArch() == Triple::mips64el)
+ FDECFIEncoding = dwarf::DW_EH_PE_sdata8;
+ else
+ FDECFIEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
+
if (T.getArch() == Triple::x86) {
PersonalityEncoding = (RelocM == Reloc::PIC_)
? dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4
LSDAEncoding = (RelocM == Reloc::PIC_)
? dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4
: dwarf::DW_EH_PE_absptr;
- FDEEncoding = FDECFIEncoding = (RelocM == Reloc::PIC_)
+ FDEEncoding = (RelocM == Reloc::PIC_)
? dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4
: dwarf::DW_EH_PE_absptr;
TTypeEncoding = (RelocM == Reloc::PIC_)
? dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4
: dwarf::DW_EH_PE_absptr;
} else if (T.getArch() == Triple::x86_64) {
- FDECFIEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
-
if (RelocM == Reloc::PIC_) {
PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
((CMModel == CodeModel::Small || CMModel == CodeModel::Medium)
TTypeEncoding = (CMModel == CodeModel::Small)
? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr;
}
+ } else if (T.getArch() == Triple::aarch64) {
+ // The small model guarantees static code/data size < 4GB, but not where it
+ // will be in memory. Most of these could end up >2GB away so even a signed
+ // pc-relative 32-bit address is insufficient, theoretically.
+ if (RelocM == Reloc::PIC_) {
+ PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
+ dwarf::DW_EH_PE_sdata8;
+ LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata8;
+ FDEEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
+ TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
+ dwarf::DW_EH_PE_sdata8;
+ } else {
+ PersonalityEncoding = dwarf::DW_EH_PE_absptr;
+ LSDAEncoding = dwarf::DW_EH_PE_absptr;
+ FDEEncoding = dwarf::DW_EH_PE_udata4;
+ TTypeEncoding = dwarf::DW_EH_PE_absptr;
+ }
+ } else if (T.getArch() == Triple::ppc64 || T.getArch() == Triple::ppc64le) {
+ PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
+ dwarf::DW_EH_PE_udata8;
+ LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8;
+ FDEEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8;
+ TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
+ dwarf::DW_EH_PE_udata8;
+ } else if (T.getArch() == Triple::systemz) {
+ // All currently-defined code models guarantee that 4-byte PC-relative
+ // values will be in range.
+ if (RelocM == Reloc::PIC_) {
+ PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
+ dwarf::DW_EH_PE_sdata4;
+ LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
+ FDEEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
+ TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
+ dwarf::DW_EH_PE_sdata4;
+ } else {
+ PersonalityEncoding = dwarf::DW_EH_PE_absptr;
+ LSDAEncoding = dwarf::DW_EH_PE_absptr;
+ FDEEncoding = dwarf::DW_EH_PE_absptr;
+ TTypeEncoding = dwarf::DW_EH_PE_absptr;
+ }
}
// Solaris requires different flags for .eh_frame to seemingly every other
DwarfFrameSection =
Ctx->getELFSection(".debug_frame", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
+ DwarfPubNamesSection =
+ Ctx->getELFSection(".debug_pubnames", ELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfPubTypesSection =
Ctx->getELFSection(".debug_pubtypes", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
+ DwarfGnuPubNamesSection =
+ Ctx->getELFSection(".debug_gnu_pubnames", ELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
+ DwarfGnuPubTypesSection =
+ Ctx->getELFSection(".debug_gnu_pubtypes", ELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfStrSection =
Ctx->getELFSection(".debug_str", ELF::SHT_PROGBITS,
ELF::SHF_MERGE | ELF::SHF_STRINGS,
DwarfMacroInfoSection =
Ctx->getELFSection(".debug_macinfo", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
+
+ // DWARF5 Experimental Debug Info
+
+ // Accelerator Tables
DwarfAccelNamesSection =
Ctx->getELFSection(".apple_names", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
DwarfAccelTypesSection =
Ctx->getELFSection(".apple_types", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
+
+ // Fission Sections
+ DwarfInfoDWOSection =
+ Ctx->getELFSection(".debug_info.dwo", ELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
+ DwarfAbbrevDWOSection =
+ Ctx->getELFSection(".debug_abbrev.dwo", ELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
+ DwarfStrDWOSection =
+ Ctx->getELFSection(".debug_str.dwo", ELF::SHT_PROGBITS,
+ ELF::SHF_MERGE | ELF::SHF_STRINGS,
+ SectionKind::getMergeable1ByteCString());
+ DwarfLineDWOSection =
+ Ctx->getELFSection(".debug_line.dwo", ELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
+ DwarfLocDWOSection =
+ Ctx->getELFSection(".debug_loc.dwo", ELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
+ DwarfStrOffDWOSection =
+ Ctx->getELFSection(".debug_str_offsets.dwo", ELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
+ DwarfAddrSection =
+ Ctx->getELFSection(".debug_addr", ELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
}
void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
// COFF
+ BSSSection =
+ Ctx->getCOFFSection(".bss",
+ COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getBSS());
TextSection =
Ctx->getCOFFSection(".text",
COFF::IMAGE_SCN_CNT_CODE |
COFF::IMAGE_SCN_MEM_DISCARDABLE |
COFF::IMAGE_SCN_MEM_READ,
SectionKind::getMetadata());
+ DwarfPubNamesSection =
+ Ctx->getCOFFSection(".debug_pubnames",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfPubTypesSection =
Ctx->getCOFFSection(".debug_pubtypes",
COFF::IMAGE_SCN_MEM_DISCARDABLE |
COFF::IMAGE_SCN_MEM_READ,
SectionKind::getMetadata());
+ DwarfGnuPubNamesSection =
+ Ctx->getCOFFSection(".debug_gnu_pubnames",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
+ DwarfGnuPubTypesSection =
+ Ctx->getCOFFSection(".debug_gnu_pubtypes",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfStrSection =
Ctx->getCOFFSection(".debug_str",
COFF::IMAGE_SCN_MEM_DISCARDABLE |
PersonalityEncoding = LSDAEncoding = FDEEncoding = FDECFIEncoding =
TTypeEncoding = dwarf::DW_EH_PE_absptr;
+ CompactUnwindDwarfEHFrameOnly = 0;
+
EHFrameSection = 0; // Created on demand.
CompactUnwindSection = 0; // Used only by selected targets.
DwarfAccelNamesSection = 0; // Used only by selected targets.
}
}
+const MCSection *MCObjectFileInfo::getDwarfTypesSection(uint64_t Hash) const {
+ return Ctx->getELFSection(".debug_types", ELF::SHT_PROGBITS, ELF::SHF_GROUP,
+ SectionKind::getMetadata(), 0, utostr(Hash));
+}
+
+const MCSection *
+MCObjectFileInfo::getDwarfTypesDWOSection(uint64_t Hash) const {
+ return Ctx->getELFSection(".debug_types.dwo", ELF::SHT_GROUP, 0,
+ SectionKind::getMetadata(), 0, utostr(Hash));
+}
+
void MCObjectFileInfo::InitEHFrameSection() {
if (Env == IsMachO)
EHFrameSection =
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