//===----------------------------------------------------------------------===//
#include "llvm/MC/MCObjectFileInfo.h"
+#include "llvm/ADT/Triple.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,
TLSThreadInitSection
= Ctx->getMachOSection("__DATA", "__thread_init",
- MCSectionMachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS,
- SectionKind::getDataRel());
+ MCSectionMachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS,
+ SectionKind::getDataRel());
CStringSection // .cstring
= Ctx->getMachOSection("__TEXT", "__cstring",
// 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",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
+ DwarfAccelObjCSection =
+ Ctx->getMachOSection("__DWARF", "__apple_objc",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
+ // 16 character section limit...
+ DwarfAccelNamespaceSection =
+ Ctx->getMachOSection("__DWARF", "__apple_namespac",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
+ DwarfAccelTypesSection =
+ Ctx->getMachOSection("__DWARF", "__apple_types",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
+
DwarfAbbrevSection =
Ctx->getMachOSection("__DWARF", "__debug_abbrev",
MCSectionMachO::S_ATTR_DEBUG,
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
- : dwarf::DW_EH_PE_absptr;
+ ? dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4
+ : dwarf::DW_EH_PE_absptr;
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;
+ ? 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
+ // platform.
+ EHSectionType = ELF::SHT_PROGBITS;
+ EHSectionFlags = ELF::SHF_ALLOC;
+ if (T.getOS() == Triple::Solaris) {
+ if (T.getArch() == Triple::x86_64)
+ EHSectionType = ELF::SHT_X86_64_UNWIND;
+ else
+ EHSectionFlags |= ELF::SHF_WRITE;
}
+
// ELF
BSSSection =
Ctx->getELFSection(".bss", ELF::SHT_NOBITS,
- ELF::SHF_WRITE |ELF::SHF_ALLOC,
+ ELF::SHF_WRITE | ELF::SHF_ALLOC,
SectionKind::getBSS());
TextSection =
DwarfPubTypesSection =
Ctx->getELFSection(".debug_pubtypes", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
- DwarfStrSection =
- Ctx->getELFSection(".debug_str", ELF::SHT_PROGBITS, 0,
+ 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,
+ SectionKind::getMergeable1ByteCString());
DwarfLocSection =
Ctx->getELFSection(".debug_loc", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
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());
+ DwarfAccelObjCSection =
+ Ctx->getELFSection(".apple_objc", ELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
+ DwarfAccelNamespaceSection =
+ Ctx->getELFSection(".apple_namespaces", 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_CNT_INITIALIZED_DATA |
COFF::IMAGE_SCN_MEM_READ,
SectionKind::getReadOnly());
- StaticCtorSection =
- Ctx->getCOFFSection(".ctors",
- COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
- COFF::IMAGE_SCN_MEM_READ |
- COFF::IMAGE_SCN_MEM_WRITE,
- SectionKind::getDataRel());
- StaticDtorSection =
- Ctx->getCOFFSection(".dtors",
- COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
- COFF::IMAGE_SCN_MEM_READ |
- COFF::IMAGE_SCN_MEM_WRITE,
- SectionKind::getDataRel());
+ if (T.getOS() == Triple::Win32) {
+ StaticCtorSection =
+ Ctx->getCOFFSection(".CRT$XCU",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getReadOnly());
+ } else {
+ StaticCtorSection =
+ Ctx->getCOFFSection(".ctors",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getDataRel());
+ }
+
+
+ if (T.getOS() == Triple::Win32) {
+ StaticDtorSection =
+ Ctx->getCOFFSection(".CRT$XTX",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getReadOnly());
+ } else {
+ StaticDtorSection =
+ Ctx->getCOFFSection(".dtors",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getDataRel());
+ }
// FIXME: We're emitting LSDA info into a readonly section on COFF, even
// though it contains relocatable pointers. In PIC mode, this is probably a
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 |
PDataSection =
Ctx->getCOFFSection(".pdata",
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
- COFF::IMAGE_SCN_MEM_READ |
- COFF::IMAGE_SCN_MEM_WRITE,
+ COFF::IMAGE_SCN_MEM_READ,
SectionKind::getDataRel());
XDataSection =
Ctx->getCOFFSection(".xdata",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getDataRel());
+ TLSDataSection =
+ Ctx->getCOFFSection(".tls$",
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
COFF::IMAGE_SCN_MEM_READ |
COFF::IMAGE_SCN_MEM_WRITE,
PersonalityEncoding = LSDAEncoding = FDEEncoding = FDECFIEncoding =
TTypeEncoding = dwarf::DW_EH_PE_absptr;
- EHFrameSection = 0; // Created on demand.
- CompactUnwindSection = 0; // Used only be select targets.
+ CompactUnwindDwarfEHFrameOnly = 0;
+
+ EHFrameSection = 0; // Created on demand.
+ CompactUnwindSection = 0; // Used only by selected targets.
+ DwarfAccelNamesSection = 0; // Used only by selected targets.
+ DwarfAccelObjCSection = 0; // Used only by selected targets.
+ DwarfAccelNamespaceSection = 0; // Used only by selected targets.
+ DwarfAccelTypesSection = 0; // Used only by selected targets.
Triple T(TT);
Triple::ArchType Arch = T.getArch();
Env = IsMachO;
InitMachOMCObjectFileInfo(T);
} else if ((Arch == Triple::x86 || Arch == Triple::x86_64) &&
+ (T.getEnvironment() != Triple::ELF) &&
(T.getOS() == Triple::MinGW32 || T.getOS() == Triple::Cygwin ||
T.getOS() == Triple::Win32)) {
Env = IsCOFF;
SectionKind::getReadOnly());
else if (Env == IsELF)
EHFrameSection =
- Ctx->getELFSection(".eh_frame", ELF::SHT_PROGBITS,
- ELF::SHF_ALLOC,
+ Ctx->getELFSection(".eh_frame", EHSectionType,
+ EHSectionFlags,
SectionKind::getDataRel());
else
EHFrameSection =
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