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-rw-r--r--llvm/lib/MC/CMakeLists.txt6
-rw-r--r--llvm/lib/MC/MCAsmInfoCOFF.cpp103
-rw-r--r--llvm/lib/MC/MCAsmInfoELF.cpp192
-rw-r--r--llvm/lib/MC/MCAsmInfoGOFF.cpp138
-rw-r--r--llvm/lib/MC/MCAsmInfoWasm.cpp83
-rw-r--r--llvm/lib/MC/MCAsmInfoXCOFF.cpp117
-rw-r--r--llvm/lib/MC/MCAsmStreamer.cpp6
-rw-r--r--llvm/lib/MC/MCExpr.cpp25
-rw-r--r--llvm/lib/MC/MCObjectStreamer.cpp24
-rw-r--r--llvm/lib/MC/MCSectionCOFF.cpp115
-rw-r--r--llvm/lib/MC/MCSectionDXContainer.cpp15
-rw-r--r--llvm/lib/MC/MCSectionELF.cpp213
-rw-r--r--llvm/lib/MC/MCSectionGOFF.cpp143
-rw-r--r--llvm/lib/MC/MCSectionMachO.cpp22
-rw-r--r--llvm/lib/MC/MCSectionWasm.cpp99
-rw-r--r--llvm/lib/MC/MCSectionXCOFF.cpp132
-rw-r--r--llvm/lib/MC/MCStreamer.cpp11
17 files changed, 673 insertions, 771 deletions
diff --git a/llvm/lib/MC/CMakeLists.txt b/llvm/lib/MC/CMakeLists.txt
index d662c42..18a85b3 100644
--- a/llvm/lib/MC/CMakeLists.txt
+++ b/llvm/lib/MC/CMakeLists.txt
@@ -43,13 +43,7 @@ add_llvm_component_library(LLVMMC
MCRegisterInfo.cpp
MCSchedule.cpp
MCSection.cpp
- MCSectionCOFF.cpp
- MCSectionDXContainer.cpp
- MCSectionELF.cpp
- MCSectionGOFF.cpp
MCSectionMachO.cpp
- MCSectionWasm.cpp
- MCSectionXCOFF.cpp
MCStreamer.cpp
MCSPIRVStreamer.cpp
MCSubtargetInfo.cpp
diff --git a/llvm/lib/MC/MCAsmInfoCOFF.cpp b/llvm/lib/MC/MCAsmInfoCOFF.cpp
index f2742f7..54717df 100644
--- a/llvm/lib/MC/MCAsmInfoCOFF.cpp
+++ b/llvm/lib/MC/MCAsmInfoCOFF.cpp
@@ -12,8 +12,13 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCAsmInfoCOFF.h"
+#include "llvm/BinaryFormat/COFF.h"
#include "llvm/MC/MCDirectives.h"
#include "llvm/MC/MCSection.h"
+#include "llvm/MC/MCSectionCOFF.h"
+#include "llvm/MC/MCSymbol.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cassert>
using namespace llvm;
@@ -69,3 +74,101 @@ MCAsmInfoGNUCOFF::MCAsmInfoGNUCOFF() {
// We don't create constants in comdat sections for MinGW.
HasCOFFComdatConstants = false;
}
+
+bool MCSectionCOFF::shouldOmitSectionDirective(StringRef Name) const {
+ if (COMDATSymbol || isUnique())
+ return false;
+
+ // FIXME: Does .section .bss/.data/.text work everywhere??
+ if (Name == ".text" || Name == ".data" || Name == ".bss")
+ return true;
+
+ return false;
+}
+
+void MCSectionCOFF::setSelection(int Selection) const {
+ assert(Selection != 0 && "invalid COMDAT selection type");
+ this->Selection = Selection;
+ Characteristics |= COFF::IMAGE_SCN_LNK_COMDAT;
+}
+
+void MCAsmInfoCOFF::printSwitchToSection(const MCSection &Section, uint32_t,
+ const Triple &T,
+ raw_ostream &OS) const {
+ auto &Sec = static_cast<const MCSectionCOFF &>(Section);
+ // standard sections don't require the '.section'
+ if (Sec.shouldOmitSectionDirective(Sec.getName())) {
+ OS << '\t' << Sec.getName() << '\n';
+ return;
+ }
+
+ OS << "\t.section\t" << Sec.getName() << ",\"";
+ if (Sec.getCharacteristics() & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA)
+ OS << 'd';
+ if (Sec.getCharacteristics() & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)
+ OS << 'b';
+ if (Sec.getCharacteristics() & COFF::IMAGE_SCN_MEM_EXECUTE)
+ OS << 'x';
+ if (Sec.getCharacteristics() & COFF::IMAGE_SCN_MEM_WRITE)
+ OS << 'w';
+ else if (Sec.getCharacteristics() & COFF::IMAGE_SCN_MEM_READ)
+ OS << 'r';
+ else
+ OS << 'y';
+ if (Sec.getCharacteristics() & COFF::IMAGE_SCN_LNK_REMOVE)
+ OS << 'n';
+ if (Sec.getCharacteristics() & COFF::IMAGE_SCN_MEM_SHARED)
+ OS << 's';
+ if ((Sec.getCharacteristics() & COFF::IMAGE_SCN_MEM_DISCARDABLE) &&
+ !Sec.isImplicitlyDiscardable(Sec.getName()))
+ OS << 'D';
+ if (Sec.getCharacteristics() & COFF::IMAGE_SCN_LNK_INFO)
+ OS << 'i';
+ OS << '"';
+
+ // unique should be tail of .section directive.
+ if (Sec.isUnique() && !Sec.COMDATSymbol)
+ OS << ",unique," << Sec.UniqueID;
+
+ if (Sec.getCharacteristics() & COFF::IMAGE_SCN_LNK_COMDAT) {
+ if (Sec.COMDATSymbol)
+ OS << ",";
+ else
+ OS << "\n\t.linkonce\t";
+ switch (Sec.Selection) {
+ case COFF::IMAGE_COMDAT_SELECT_NODUPLICATES:
+ OS << "one_only";
+ break;
+ case COFF::IMAGE_COMDAT_SELECT_ANY:
+ OS << "discard";
+ break;
+ case COFF::IMAGE_COMDAT_SELECT_SAME_SIZE:
+ OS << "same_size";
+ break;
+ case COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH:
+ OS << "same_contents";
+ break;
+ case COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE:
+ OS << "associative";
+ break;
+ case COFF::IMAGE_COMDAT_SELECT_LARGEST:
+ OS << "largest";
+ break;
+ case COFF::IMAGE_COMDAT_SELECT_NEWEST:
+ OS << "newest";
+ break;
+ default:
+ assert(false && "unsupported COFF selection type");
+ break;
+ }
+ if (Sec.COMDATSymbol) {
+ OS << ",";
+ Sec.COMDATSymbol->print(OS, this);
+ }
+ }
+
+ if (Sec.isUnique() && Sec.COMDATSymbol)
+ OS << ",unique," << Sec.UniqueID;
+
+ OS << '\n';
+}
diff --git a/llvm/lib/MC/MCAsmInfoELF.cpp b/llvm/lib/MC/MCAsmInfoELF.cpp
index b5738ac..cdae9d7 100644
--- a/llvm/lib/MC/MCAsmInfoELF.cpp
+++ b/llvm/lib/MC/MCAsmInfoELF.cpp
@@ -12,9 +12,16 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCAsmInfoELF.h"
+#include "llvm/ADT/Twine.h"
#include "llvm/BinaryFormat/ELF.h"
+#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSectionELF.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/TargetParser/Triple.h"
+#include <cassert>
using namespace llvm;
@@ -38,3 +45,188 @@ MCAsmInfoELF::MCAsmInfoELF() {
PrivateGlobalPrefix = ".L";
PrivateLabelPrefix = ".L";
}
+
+static void printName(raw_ostream &OS, StringRef Name) {
+ if (Name.find_first_not_of("0123456789_."
+ "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) {
+ OS << Name;
+ return;
+ }
+ OS << '"';
+ for (const char *B = Name.begin(), *E = Name.end(); B < E; ++B) {
+ if (*B == '"') // Unquoted "
+ OS << "\\\"";
+ else if (*B != '\\') // Neither " or backslash
+ OS << *B;
+ else if (B + 1 == E) // Trailing backslash
+ OS << "\\\\";
+ else {
+ OS << B[0] << B[1]; // Quoted character
+ ++B;
+ }
+ }
+ OS << '"';
+}
+
+void MCAsmInfoELF::printSwitchToSection(const MCSection &Section,
+ uint32_t Subsection, const Triple &T,
+ raw_ostream &OS) const {
+ auto &Sec = static_cast<const MCSectionELF &>(Section);
+ if (!Sec.isUnique() && shouldOmitSectionDirective(Sec.getName())) {
+ OS << '\t' << Sec.getName();
+ if (Subsection)
+ OS << '\t' << Subsection;
+ OS << '\n';
+ return;
+ }
+
+ OS << "\t.section\t";
+ printName(OS, Sec.getName());
+
+ // Handle the weird solaris syntax if desired.
+ if (usesSunStyleELFSectionSwitchSyntax() && !(Sec.Flags & ELF::SHF_MERGE)) {
+ if (Sec.Flags & ELF::SHF_ALLOC)
+ OS << ",#alloc";
+ if (Sec.Flags & ELF::SHF_EXECINSTR)
+ OS << ",#execinstr";
+ if (Sec.Flags & ELF::SHF_WRITE)
+ OS << ",#write";
+ if (Sec.Flags & ELF::SHF_EXCLUDE)
+ OS << ",#exclude";
+ if (Sec.Flags & ELF::SHF_TLS)
+ OS << ",#tls";
+ OS << '\n';
+ return;
+ }
+
+ OS << ",\"";
+ if (Sec.Flags & ELF::SHF_ALLOC)
+ OS << 'a';
+ if (Sec.Flags & ELF::SHF_EXCLUDE)
+ OS << 'e';
+ if (Sec.Flags & ELF::SHF_EXECINSTR)
+ OS << 'x';
+ if (Sec.Flags & ELF::SHF_WRITE)
+ OS << 'w';
+ if (Sec.Flags & ELF::SHF_MERGE)
+ OS << 'M';
+ if (Sec.Flags & ELF::SHF_STRINGS)
+ OS << 'S';
+ if (Sec.Flags & ELF::SHF_TLS)
+ OS << 'T';
+ if (Sec.Flags & ELF::SHF_LINK_ORDER)
+ OS << 'o';
+ if (Sec.Flags & ELF::SHF_GROUP)
+ OS << 'G';
+ if (Sec.Flags & ELF::SHF_GNU_RETAIN)
+ OS << 'R';
+
+ // If there are os-specific flags, print them.
+ if (T.isOSSolaris())
+ if (Sec.Flags & ELF::SHF_SUNW_NODISCARD)
+ OS << 'R';
+
+ // If there are tarSec.get-specific flags, print them.
+ Triple::ArchType Arch = T.getArch();
+ if (Arch == Triple::xcore) {
+ if (Sec.Flags & ELF::XCORE_SHF_CP_SECTION)
+ OS << 'c';
+ if (Sec.Flags & ELF::XCORE_SHF_DP_SECTION)
+ OS << 'd';
+ } else if (T.isARM() || T.isThumb()) {
+ if (Sec.Flags & ELF::SHF_ARM_PURECODE)
+ OS << 'y';
+ } else if (T.isAArch64()) {
+ if (Sec.Flags & ELF::SHF_AARCH64_PURECODE)
+ OS << 'y';
+ } else if (Arch == Triple::hexagon) {
+ if (Sec.Flags & ELF::SHF_HEX_GPREL)
+ OS << 's';
+ } else if (Arch == Triple::x86_64) {
+ if (Sec.Flags & ELF::SHF_X86_64_LARGE)
+ OS << 'l';
+ }
+
+ OS << '"';
+
+ OS << ',';
+
+ // If comment string is '@', e.g. as on ARM - use '%' instead
+ if (getCommentString()[0] == '@')
+ OS << '%';
+ else
+ OS << '@';
+
+ if (Sec.Type == ELF::SHT_INIT_ARRAY)
+ OS << "init_array";
+ else if (Sec.Type == ELF::SHT_FINI_ARRAY)
+ OS << "fini_array";
+ else if (Sec.Type == ELF::SHT_PREINIT_ARRAY)
+ OS << "preinit_array";
+ else if (Sec.Type == ELF::SHT_NOBITS)
+ OS << "nobits";
+ else if (Sec.Type == ELF::SHT_NOTE)
+ OS << "note";
+ else if (Sec.Type == ELF::SHT_PROGBITS)
+ OS << "progbits";
+ else if (Sec.Type == ELF::SHT_X86_64_UNWIND)
+ OS << "unwind";
+ else if (Sec.Type == ELF::SHT_MIPS_DWARF)
+ // Print hex value of the flag while we do not have
+ // any standard symbolic representation of the flag.
+ OS << "0x7000001e";
+ else if (Sec.Type == ELF::SHT_LLVM_ODRTAB)
+ OS << "llvm_odrtab";
+ else if (Sec.Type == ELF::SHT_LLVM_LINKER_OPTIONS)
+ OS << "llvm_linker_options";
+ else if (Sec.Type == ELF::SHT_LLVM_CALL_GRAPH_PROFILE)
+ OS << "llvm_call_graph_profile";
+ else if (Sec.Type == ELF::SHT_LLVM_DEPENDENT_LIBRARIES)
+ OS << "llvm_dependent_libraries";
+ else if (Sec.Type == ELF::SHT_LLVM_SYMPART)
+ OS << "llvm_sympart";
+ else if (Sec.Type == ELF::SHT_LLVM_BB_ADDR_MAP)
+ OS << "llvm_bb_addr_map";
+ else if (Sec.Type == ELF::SHT_LLVM_OFFLOADING)
+ OS << "llvm_offloading";
+ else if (Sec.Type == ELF::SHT_LLVM_LTO)
+ OS << "llvm_lto";
+ else if (Sec.Type == ELF::SHT_LLVM_JT_SIZES)
+ OS << "llvm_jt_sizes";
+ else if (Sec.Type == ELF::SHT_LLVM_CFI_JUMP_TABLE)
+ OS << "llvm_cfi_jump_table";
+ else
+ OS << "0x" << Twine::utohexstr(Sec.Type);
+
+ if (Sec.EntrySize) {
+ assert((Sec.Flags & ELF::SHF_MERGE) ||
+ Sec.Type == ELF::SHT_LLVM_CFI_JUMP_TABLE);
+ OS << "," << Sec.EntrySize;
+ }
+
+ if (Sec.Flags & ELF::SHF_LINK_ORDER) {
+ OS << ",";
+ if (Sec.LinkedToSym)
+ printName(OS, Sec.LinkedToSym->getName());
+ else
+ OS << '0';
+ }
+
+ if (Sec.Flags & ELF::SHF_GROUP) {
+ OS << ",";
+ printName(OS, Sec.Group.getPointer()->getName());
+ if (Sec.isComdat())
+ OS << ",comdat";
+ }
+
+ if (Sec.isUnique())
+ OS << ",unique," << Sec.UniqueID;
+
+ OS << '\n';
+
+ if (Subsection) {
+ OS << "\t.subsection\t" << Subsection;
+ OS << '\n';
+ }
+}
diff --git a/llvm/lib/MC/MCAsmInfoGOFF.cpp b/llvm/lib/MC/MCAsmInfoGOFF.cpp
index 3c81a46..0a5d1927 100644
--- a/llvm/lib/MC/MCAsmInfoGOFF.cpp
+++ b/llvm/lib/MC/MCAsmInfoGOFF.cpp
@@ -13,11 +13,12 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCAsmInfoGOFF.h"
+#include "llvm/BinaryFormat/GOFF.h"
+#include "llvm/MC/MCSectionGOFF.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
-void MCAsmInfoGOFF::anchor() {}
-
MCAsmInfoGOFF::MCAsmInfoGOFF() {
Data64bitsDirective = "\t.quad\t";
HasDotTypeDotSizeDirective = false;
@@ -25,3 +26,136 @@ MCAsmInfoGOFF::MCAsmInfoGOFF() {
PrivateLabelPrefix = "L#";
ZeroDirective = "\t.space\t";
}
+
+static void emitCATTR(raw_ostream &OS, StringRef Name, GOFF::ESDRmode Rmode,
+ GOFF::ESDAlignment Alignment,
+ GOFF::ESDLoadingBehavior LoadBehavior,
+ GOFF::ESDExecutable Executable, bool IsReadOnly,
+ uint32_t SortKey, uint8_t FillByteValue,
+ StringRef PartName) {
+ OS << Name << " CATTR ";
+ OS << "ALIGN(" << static_cast<unsigned>(Alignment) << "),"
+ << "FILL(" << static_cast<unsigned>(FillByteValue) << ")";
+ switch (LoadBehavior) {
+ case GOFF::ESD_LB_Deferred:
+ OS << ",DEFLOAD";
+ break;
+ case GOFF::ESD_LB_NoLoad:
+ OS << ",NOLOAD";
+ break;
+ default:
+ break;
+ }
+ switch (Executable) {
+ case GOFF::ESD_EXE_CODE:
+ OS << ",EXECUTABLE";
+ break;
+ case GOFF::ESD_EXE_DATA:
+ OS << ",NOTEXECUTABLE";
+ break;
+ default:
+ break;
+ }
+ if (IsReadOnly)
+ OS << ",READONLY";
+ if (Rmode != GOFF::ESD_RMODE_None) {
+ OS << ',';
+ OS << "RMODE(";
+ switch (Rmode) {
+ case GOFF::ESD_RMODE_24:
+ OS << "24";
+ break;
+ case GOFF::ESD_RMODE_31:
+ OS << "31";
+ break;
+ case GOFF::ESD_RMODE_64:
+ OS << "64";
+ break;
+ case GOFF::ESD_RMODE_None:
+ break;
+ }
+ OS << ')';
+ }
+ if (SortKey)
+ OS << ",PRIORITY(" << SortKey << ")";
+ if (!PartName.empty())
+ OS << ",PART(" << PartName << ")";
+ OS << '\n';
+}
+
+static void emitXATTR(raw_ostream &OS, StringRef Name,
+ GOFF::ESDLinkageType Linkage,
+ GOFF::ESDExecutable Executable,
+ GOFF::ESDBindingScope BindingScope) {
+ OS << Name << " XATTR ";
+ OS << "LINKAGE(" << (Linkage == GOFF::ESD_LT_OS ? "OS" : "XPLINK") << "),";
+ if (Executable != GOFF::ESD_EXE_Unspecified)
+ OS << "REFERENCE(" << (Executable == GOFF::ESD_EXE_CODE ? "CODE" : "DATA")
+ << "),";
+ if (BindingScope != GOFF::ESD_BSC_Unspecified) {
+ OS << "SCOPE(";
+ switch (BindingScope) {
+ case GOFF::ESD_BSC_Section:
+ OS << "SECTION";
+ break;
+ case GOFF::ESD_BSC_Module:
+ OS << "MODULE";
+ break;
+ case GOFF::ESD_BSC_Library:
+ OS << "LIBRARY";
+ break;
+ case GOFF::ESD_BSC_ImportExport:
+ OS << "EXPORT";
+ break;
+ default:
+ break;
+ }
+ OS << ')';
+ }
+ OS << '\n';
+}
+
+void MCAsmInfoGOFF::printSwitchToSection(const MCSection &Section,
+ uint32_t Subsection, const Triple &T,
+ raw_ostream &OS) const {
+ auto &Sec =
+ const_cast<MCSectionGOFF &>(static_cast<const MCSectionGOFF &>(Section));
+ switch (Sec.SymbolType) {
+ case GOFF::ESD_ST_SectionDefinition: {
+ OS << Sec.getName() << " CSECT\n";
+ Sec.Emitted = true;
+ break;
+ }
+ case GOFF::ESD_ST_ElementDefinition: {
+ printSwitchToSection(*Sec.getParent(), Subsection, T, OS);
+ if (!Sec.Emitted) {
+ emitCATTR(OS, Sec.getName(), Sec.EDAttributes.Rmode,
+ Sec.EDAttributes.Alignment, Sec.EDAttributes.LoadBehavior,
+ GOFF::ESD_EXE_Unspecified, Sec.EDAttributes.IsReadOnly, 0,
+ Sec.EDAttributes.FillByteValue, StringRef());
+ Sec.Emitted = true;
+ } else
+ OS << Sec.getName() << " CATTR\n";
+ break;
+ }
+ case GOFF::ESD_ST_PartReference: {
+ MCSectionGOFF *ED = Sec.getParent();
+ printSwitchToSection(*ED->getParent(), Subsection, T, OS);
+ if (!Sec.Emitted) {
+ emitCATTR(OS, ED->getName(), ED->getEDAttributes().Rmode,
+ ED->EDAttributes.Alignment, ED->EDAttributes.LoadBehavior,
+ Sec.PRAttributes.Executable, ED->EDAttributes.IsReadOnly,
+ Sec.PRAttributes.SortKey, ED->EDAttributes.FillByteValue,
+ Sec.getName());
+ emitXATTR(OS, Sec.getName(), Sec.PRAttributes.Linkage,
+ Sec.PRAttributes.Executable, Sec.PRAttributes.BindingScope);
+ ED->Emitted = true;
+ Sec.Emitted = true;
+ } else
+ OS << ED->getName() << " CATTR PART(" << Sec.getName() << ")\n";
+ break;
+ }
+ default:
+ llvm_unreachable("Wrong section type");
+ }
+}
diff --git a/llvm/lib/MC/MCAsmInfoWasm.cpp b/llvm/lib/MC/MCAsmInfoWasm.cpp
index ce6ec7e..5e44f48 100644
--- a/llvm/lib/MC/MCAsmInfoWasm.cpp
+++ b/llvm/lib/MC/MCAsmInfoWasm.cpp
@@ -12,9 +12,11 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCAsmInfoWasm.h"
-using namespace llvm;
+#include "llvm/MC/MCSectionWasm.h"
+#include "llvm/MC/MCSymbolWasm.h"
+#include "llvm/Support/raw_ostream.h"
-void MCAsmInfoWasm::anchor() {}
+using namespace llvm;
MCAsmInfoWasm::MCAsmInfoWasm() {
HasIdentDirective = true;
@@ -23,3 +25,80 @@ MCAsmInfoWasm::MCAsmInfoWasm() {
PrivateGlobalPrefix = ".L";
PrivateLabelPrefix = ".L";
}
+
+static void printName(raw_ostream &OS, StringRef Name) {
+ if (Name.find_first_not_of("0123456789_."
+ "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) {
+ OS << Name;
+ return;
+ }
+ OS << '"';
+ for (const char *B = Name.begin(), *E = Name.end(); B < E; ++B) {
+ if (*B == '"') // Unquoted "
+ OS << "\\\"";
+ else if (*B != '\\') // Neither " or backslash
+ OS << *B;
+ else if (B + 1 == E) // Trailing backslash
+ OS << "\\\\";
+ else {
+ OS << B[0] << B[1]; // Quoted character
+ ++B;
+ }
+ }
+ OS << '"';
+}
+
+void MCAsmInfoWasm::printSwitchToSection(const MCSection &Section,
+ uint32_t Subsection, const Triple &T,
+ raw_ostream &OS) const {
+ auto &Sec = static_cast<const MCSectionWasm &>(Section);
+ if (shouldOmitSectionDirective(Sec.getName())) {
+ OS << '\t' << Sec.getName();
+ if (Subsection)
+ OS << '\t' << Subsection;
+ OS << '\n';
+ return;
+ }
+
+ OS << "\t.section\t";
+ printName(OS, Sec.getName());
+ OS << ",\"";
+
+ if (Sec.IsPassive)
+ OS << 'p';
+ if (Sec.Group)
+ OS << 'G';
+ if (Sec.SegmentFlags & wasm::WASM_SEG_FLAG_STRINGS)
+ OS << 'S';
+ if (Sec.SegmentFlags & wasm::WASM_SEG_FLAG_TLS)
+ OS << 'T';
+ if (Sec.SegmentFlags & wasm::WASM_SEG_FLAG_RETAIN)
+ OS << 'R';
+
+ OS << '"';
+
+ OS << ',';
+
+ // If comment string is '@', e.g. as on ARM - use '%' instead
+ if (getCommentString()[0] == '@')
+ OS << '%';
+ else
+ OS << '@';
+
+ // TODO: Print section type.
+
+ if (Sec.Group) {
+ OS << ",";
+ printName(OS, Sec.Group->getName());
+ OS << ",comdat";
+ }
+
+ if (Sec.isUnique())
+ OS << ",unique," << Sec.UniqueID;
+
+ OS << '\n';
+
+ if (Subsection)
+ OS << "\t.subsection\t" << Subsection << '\n';
+}
diff --git a/llvm/lib/MC/MCAsmInfoXCOFF.cpp b/llvm/lib/MC/MCAsmInfoXCOFF.cpp
index 70b090a..0403b44 100644
--- a/llvm/lib/MC/MCAsmInfoXCOFF.cpp
+++ b/llvm/lib/MC/MCAsmInfoXCOFF.cpp
@@ -8,8 +8,11 @@
#include "llvm/MC/MCAsmInfoXCOFF.h"
#include "llvm/ADT/StringExtras.h"
+#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCSectionXCOFF.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
@@ -59,3 +62,117 @@ bool MCAsmInfoXCOFF::isAcceptableChar(char C) const {
bool MCAsmInfoXCOFF::useCodeAlign(const MCSection &Sec) const {
return static_cast<const MCSectionXCOFF &>(Sec).getKind().isText();
}
+
+MCSectionXCOFF::~MCSectionXCOFF() = default;
+
+void MCSectionXCOFF::printCsectDirective(raw_ostream &OS) const {
+ OS << "\t.csect " << QualName->getName() << "," << Log2(getAlign()) << '\n';
+}
+
+void MCAsmInfoXCOFF::printSwitchToSection(const MCSection &Section, uint32_t,
+ const Triple &T,
+ raw_ostream &OS) const {
+ auto &Sec = static_cast<const MCSectionXCOFF &>(Section);
+ if (Sec.getKind().isText()) {
+ if (Sec.getMappingClass() != XCOFF::XMC_PR)
+ report_fatal_error("Unhandled storage-mapping class for .text csect");
+
+ Sec.printCsectDirective(OS);
+ return;
+ }
+
+ if (Sec.getKind().isReadOnly()) {
+ if (Sec.getMappingClass() != XCOFF::XMC_RO &&
+ Sec.getMappingClass() != XCOFF::XMC_TD)
+ report_fatal_error("Unhandled storage-mapping class for .rodata csect.");
+ Sec.printCsectDirective(OS);
+ return;
+ }
+
+ if (Sec.getKind().isReadOnlyWithRel()) {
+ if (Sec.getMappingClass() != XCOFF::XMC_RW &&
+ Sec.getMappingClass() != XCOFF::XMC_RO &&
+ Sec.getMappingClass() != XCOFF::XMC_TD)
+ report_fatal_error(
+ "Unexepected storage-mapping class for ReadOnlyWithRel kind");
+ Sec.printCsectDirective(OS);
+ return;
+ }
+
+ // Initialized TLS data.
+ if (Sec.getKind().isThreadData()) {
+ // We only expect XMC_TL here for initialized TLS data.
+ if (Sec.getMappingClass() != XCOFF::XMC_TL)
+ report_fatal_error("Unhandled storage-mapping class for .tdata csect.");
+ Sec.printCsectDirective(OS);
+ return;
+ }
+
+ if (Sec.getKind().isData()) {
+ switch (Sec.getMappingClass()) {
+ case XCOFF::XMC_RW:
+ case XCOFF::XMC_DS:
+ case XCOFF::XMC_TD:
+ Sec.printCsectDirective(OS);
+ break;
+ case XCOFF::XMC_TC:
+ case XCOFF::XMC_TE:
+ break;
+ case XCOFF::XMC_TC0:
+ OS << "\t.toc\n";
+ break;
+ default:
+ report_fatal_error("Unhandled storage-mapping class for .data csect.");
+ }
+ return;
+ }
+
+ if (Sec.isCsect() && Sec.getMappingClass() == XCOFF::XMC_TD) {
+ // Common csect type (uninitialized storage) does not have to print
+ // csect directive for section switching unless it is local.
+ if (Sec.getKind().isCommon() && !Sec.getKind().isBSSLocal())
+ return;
+
+ assert(Sec.getKind().isBSS() && "Unexpected section kind for toc-data");
+ Sec.printCsectDirective(OS);
+ return;
+ }
+ // Common csect type (uninitialized storage) does not have to print csect
+ // directive for section switching.
+ if (Sec.isCsect() && Sec.getCSectType() == XCOFF::XTY_CM) {
+ assert((Sec.getMappingClass() == XCOFF::XMC_RW ||
+ Sec.getMappingClass() == XCOFF::XMC_BS ||
+ Sec.getMappingClass() == XCOFF::XMC_UL) &&
+ "Generated a storage-mapping class for a common/bss/tbss csect we "
+ "don't "
+ "understand how to switch to.");
+ // Common symbols and local zero-initialized symbols for TLS and Non-TLS are
+ // eligible for .bss/.tbss csect, getKind().isThreadBSS() is used to
+ // cover TLS common and zero-initialized local symbols since linkage type
+ // (in the GlobalVariable) is not accessible in this class.
+ assert((Sec.getKind().isBSSLocal() || Sec.getKind().isCommon() ||
+ Sec.getKind().isThreadBSS()) &&
+ "wrong symbol type for .bss/.tbss csect");
+ // Don't have to print a directive for switching to section for commons
+ // and zero-initialized TLS data. The '.comm' and '.lcomm' directives of the
+ // variable will create the needed csect.
+ return;
+ }
+
+ // Zero-initialized TLS data with weak or external linkage are not eligible to
+ // be put into common csect.
+ if (Sec.getKind().isThreadBSS()) {
+ Sec.printCsectDirective(OS);
+ return;
+ }
+
+ // XCOFF debug sections.
+ if (Sec.getKind().isMetadata() && Sec.isDwarfSect()) {
+ OS << "\n\t.dwsect " << format("0x%" PRIx32, *Sec.getDwarfSubtypeFlags())
+ << '\n';
+ OS << Sec.getName() << ':' << '\n';
+ return;
+ }
+
+ report_fatal_error("Printing for this SectionKind is unimplemented.");
+}
diff --git a/llvm/lib/MC/MCAsmStreamer.cpp b/llvm/lib/MC/MCAsmStreamer.cpp
index 05b386c..da51da4 100644
--- a/llvm/lib/MC/MCAsmStreamer.cpp
+++ b/llvm/lib/MC/MCAsmStreamer.cpp
@@ -532,8 +532,8 @@ void MCAsmStreamer::switchSection(MCSection *Section, uint32_t Subsection) {
if (MCTargetStreamer *TS = getTargetStreamer()) {
TS->changeSection(Cur.first, Section, Subsection, OS);
} else {
- Section->printSwitchToSection(*MAI, getContext().getTargetTriple(), OS,
- Subsection);
+ MAI->printSwitchToSection(*Section, Subsection,
+ getContext().getTargetTriple(), OS);
}
}
MCStreamer::switchSection(Section, Subsection);
@@ -543,7 +543,7 @@ bool MCAsmStreamer::popSection() {
if (!MCStreamer::popSection())
return false;
auto [Sec, Subsec] = getCurrentSection();
- Sec->printSwitchToSection(*MAI, getContext().getTargetTriple(), OS, Subsec);
+ MAI->printSwitchToSection(*Sec, Subsec, getContext().getTargetTriple(), OS);
return true;
}
diff --git a/llvm/lib/MC/MCExpr.cpp b/llvm/lib/MC/MCExpr.cpp
index dbb2fd1..c24c82d 100644
--- a/llvm/lib/MC/MCExpr.cpp
+++ b/llvm/lib/MC/MCExpr.cpp
@@ -346,17 +346,16 @@ static void attemptToFoldSymbolOffsetDifference(const MCAssembler *Asm,
Displacement *= -1;
}
- // Track whether B is before a relaxable instruction and whether A is after
- // a relaxable instruction. If SA and SB are separated by a linker-relaxable
- // instruction, the difference cannot be resolved as it may be changed by
- // the linker.
+ // Track whether B is before a relaxable instruction/alignment and whether A
+ // is after a relaxable instruction/alignment. If SA and SB are separated by
+ // a linker-relaxable instruction/alignment, the difference cannot be
+ // resolved as it may be changed by the linker.
bool BBeforeRelax = false, AAfterRelax = false;
for (auto F = FB; F; F = F->getNext()) {
- auto DF = F->getKind() == MCFragment::FT_Data ? F : nullptr;
- if (DF && DF->isLinkerRelaxable()) {
- if (&*F != FB || SBOffset != DF->getContents().size())
+ if (F && F->isLinkerRelaxable()) {
+ if (&*F != FB || SBOffset != F->getSize())
BBeforeRelax = true;
- if (&*F != FA || SAOffset == DF->getContents().size())
+ if (&*F != FA || SAOffset == F->getSize())
AAfterRelax = true;
if (BBeforeRelax && AAfterRelax)
return;
@@ -370,17 +369,15 @@ static void attemptToFoldSymbolOffsetDifference(const MCAssembler *Asm,
}
int64_t Num;
- if (DF) {
- Displacement += DF->getContents().size();
- } else if (F->getKind() == MCFragment::FT_Relaxable &&
+ if (F->getKind() == MCFragment::FT_Data) {
+ Displacement += F->getFixedSize();
+ } else if ((F->getKind() == MCFragment::FT_Relaxable ||
+ F->getKind() == MCFragment::FT_Align) &&
Asm->hasFinalLayout()) {
// Before finishLayout, a relaxable fragment's size is indeterminate.
// After layout, during relocation generation, it can be treated as a
// data fragment.
Displacement += F->getSize();
- } else if (F->getKind() == MCFragment::FT_Align && Layout &&
- F->isLinkerRelaxable()) {
- Displacement += Asm->computeFragmentSize(*F);
} else if (auto *FF = dyn_cast<MCFillFragment>(F);
FF && FF->getNumValues().evaluateAsAbsolute(Num)) {
Displacement += Num * FF->getValueSize();
diff --git a/llvm/lib/MC/MCObjectStreamer.cpp b/llvm/lib/MC/MCObjectStreamer.cpp
index f046552..9c7b05b 100644
--- a/llvm/lib/MC/MCObjectStreamer.cpp
+++ b/llvm/lib/MC/MCObjectStreamer.cpp
@@ -340,31 +340,33 @@ void MCObjectStreamer::emitInstToData(const MCInst &Inst,
MCFragment *F = getCurrentFragment();
// Append the instruction to the data fragment.
- size_t FixupStartIndex = F->getFixups().size();
size_t CodeOffset = F->getContents().size();
SmallVector<MCFixup, 1> Fixups;
getAssembler().getEmitter().encodeInstruction(
Inst, F->getContentsForAppending(), Fixups, STI);
F->doneAppending();
- if (!Fixups.empty())
- F->appendFixups(Fixups);
F->setHasInstructions(STI);
+ if (Fixups.empty())
+ return;
bool MarkedLinkerRelaxable = false;
- for (auto &Fixup : MutableArrayRef(F->getFixups()).slice(FixupStartIndex)) {
+ for (auto &Fixup : Fixups) {
Fixup.setOffset(Fixup.getOffset() + CodeOffset);
- if (!Fixup.isLinkerRelaxable())
+ if (!Fixup.isLinkerRelaxable() || MarkedLinkerRelaxable)
continue;
- F->setLinkerRelaxable();
+ MarkedLinkerRelaxable = true;
+ // Set the fragment's order within the subsection for use by
+ // MCAssembler::relaxAlign.
+ auto *Sec = F->getParent();
+ if (!Sec->isLinkerRelaxable())
+ Sec->setLinkerRelaxable();
// Do not add data after a linker-relaxable instruction. The difference
// between a new label and a label at or before the linker-relaxable
// instruction cannot be resolved at assemble-time.
- if (!MarkedLinkerRelaxable) {
- MarkedLinkerRelaxable = true;
- getCurrentSectionOnly()->setLinkerRelaxable();
- newFragment();
- }
+ F->setLinkerRelaxable();
+ newFragment();
}
+ F->appendFixups(Fixups);
}
void MCObjectStreamer::emitInstToFragment(const MCInst &Inst,
diff --git a/llvm/lib/MC/MCSectionCOFF.cpp b/llvm/lib/MC/MCSectionCOFF.cpp
deleted file mode 100644
index 2c2fe74..0000000
--- a/llvm/lib/MC/MCSectionCOFF.cpp
+++ /dev/null
@@ -1,115 +0,0 @@
-//===- lib/MC/MCSectionCOFF.cpp - COFF Code Section Representation --------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/MC/MCSectionCOFF.h"
-#include "llvm/BinaryFormat/COFF.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/Support/raw_ostream.h"
-#include <cassert>
-
-using namespace llvm;
-
-// shouldOmitSectionDirective - Decides whether a '.section' directive
-// should be printed before the section name
-bool MCSectionCOFF::shouldOmitSectionDirective(StringRef Name,
- const MCAsmInfo &MAI) const {
- if (COMDATSymbol || isUnique())
- return false;
-
- // FIXME: Does .section .bss/.data/.text work everywhere??
- if (Name == ".text" || Name == ".data" || Name == ".bss")
- return true;
-
- return false;
-}
-
-void MCSectionCOFF::setSelection(int Selection) const {
- assert(Selection != 0 && "invalid COMDAT selection type");
- this->Selection = Selection;
- Characteristics |= COFF::IMAGE_SCN_LNK_COMDAT;
-}
-
-void MCSectionCOFF::printSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
- raw_ostream &OS,
- uint32_t Subsection) const {
- // standard sections don't require the '.section'
- if (shouldOmitSectionDirective(getName(), MAI)) {
- OS << '\t' << getName() << '\n';
- return;
- }
-
- OS << "\t.section\t" << getName() << ",\"";
- if (getCharacteristics() & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA)
- OS << 'd';
- if (getCharacteristics() & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)
- OS << 'b';
- if (getCharacteristics() & COFF::IMAGE_SCN_MEM_EXECUTE)
- OS << 'x';
- if (getCharacteristics() & COFF::IMAGE_SCN_MEM_WRITE)
- OS << 'w';
- else if (getCharacteristics() & COFF::IMAGE_SCN_MEM_READ)
- OS << 'r';
- else
- OS << 'y';
- if (getCharacteristics() & COFF::IMAGE_SCN_LNK_REMOVE)
- OS << 'n';
- if (getCharacteristics() & COFF::IMAGE_SCN_MEM_SHARED)
- OS << 's';
- if ((getCharacteristics() & COFF::IMAGE_SCN_MEM_DISCARDABLE) &&
- !isImplicitlyDiscardable(getName()))
- OS << 'D';
- if (getCharacteristics() & COFF::IMAGE_SCN_LNK_INFO)
- OS << 'i';
- OS << '"';
-
- // unique should be tail of .section directive.
- if (isUnique() && !COMDATSymbol)
- OS << ",unique," << UniqueID;
-
- if (getCharacteristics() & COFF::IMAGE_SCN_LNK_COMDAT) {
- if (COMDATSymbol)
- OS << ",";
- else
- OS << "\n\t.linkonce\t";
- switch (Selection) {
- case COFF::IMAGE_COMDAT_SELECT_NODUPLICATES:
- OS << "one_only";
- break;
- case COFF::IMAGE_COMDAT_SELECT_ANY:
- OS << "discard";
- break;
- case COFF::IMAGE_COMDAT_SELECT_SAME_SIZE:
- OS << "same_size";
- break;
- case COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH:
- OS << "same_contents";
- break;
- case COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE:
- OS << "associative";
- break;
- case COFF::IMAGE_COMDAT_SELECT_LARGEST:
- OS << "largest";
- break;
- case COFF::IMAGE_COMDAT_SELECT_NEWEST:
- OS << "newest";
- break;
- default:
- assert(false && "unsupported COFF selection type");
- break;
- }
- if (COMDATSymbol) {
- OS << ",";
- COMDATSymbol->print(OS, &MAI);
- }
- }
-
- if (isUnique() && COMDATSymbol)
- OS << ",unique," << UniqueID;
-
- OS << '\n';
-}
diff --git a/llvm/lib/MC/MCSectionDXContainer.cpp b/llvm/lib/MC/MCSectionDXContainer.cpp
deleted file mode 100644
index 7eee59d..0000000
--- a/llvm/lib/MC/MCSectionDXContainer.cpp
+++ /dev/null
@@ -1,15 +0,0 @@
-//===- lib/MC/MCSectionDXContainer.cpp - DXContainer Section --------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/MC/MCSectionDXContainer.h"
-
-using namespace llvm;
-
-void MCSectionDXContainer::printSwitchToSection(const MCAsmInfo &,
- const Triple &, raw_ostream &,
- uint32_t) const {}
diff --git a/llvm/lib/MC/MCSectionELF.cpp b/llvm/lib/MC/MCSectionELF.cpp
deleted file mode 100644
index cf46750..0000000
--- a/llvm/lib/MC/MCSectionELF.cpp
+++ /dev/null
@@ -1,213 +0,0 @@
-//===- lib/MC/MCSectionELF.cpp - ELF Code Section Representation ----------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/MC/MCSectionELF.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/BinaryFormat/ELF.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/TargetParser/Triple.h"
-#include <cassert>
-
-using namespace llvm;
-
-// Decides whether a '.section' directive
-// should be printed before the section name.
-bool MCSectionELF::shouldOmitSectionDirective(StringRef Name,
- const MCAsmInfo &MAI) const {
- if (isUnique())
- return false;
-
- return MAI.shouldOmitSectionDirective(Name);
-}
-
-static void printName(raw_ostream &OS, StringRef Name) {
- if (Name.find_first_not_of("0123456789_."
- "abcdefghijklmnopqrstuvwxyz"
- "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) {
- OS << Name;
- return;
- }
- OS << '"';
- for (const char *B = Name.begin(), *E = Name.end(); B < E; ++B) {
- if (*B == '"') // Unquoted "
- OS << "\\\"";
- else if (*B != '\\') // Neither " or backslash
- OS << *B;
- else if (B + 1 == E) // Trailing backslash
- OS << "\\\\";
- else {
- OS << B[0] << B[1]; // Quoted character
- ++B;
- }
- }
- OS << '"';
-}
-
-void MCSectionELF::printSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
- raw_ostream &OS,
- uint32_t Subsection) const {
- if (shouldOmitSectionDirective(getName(), MAI)) {
- OS << '\t' << getName();
- if (Subsection)
- OS << '\t' << Subsection;
- OS << '\n';
- return;
- }
-
- OS << "\t.section\t";
- printName(OS, getName());
-
- // Handle the weird solaris syntax if desired.
- if (MAI.usesSunStyleELFSectionSwitchSyntax() &&
- !(Flags & ELF::SHF_MERGE)) {
- if (Flags & ELF::SHF_ALLOC)
- OS << ",#alloc";
- if (Flags & ELF::SHF_EXECINSTR)
- OS << ",#execinstr";
- if (Flags & ELF::SHF_WRITE)
- OS << ",#write";
- if (Flags & ELF::SHF_EXCLUDE)
- OS << ",#exclude";
- if (Flags & ELF::SHF_TLS)
- OS << ",#tls";
- OS << '\n';
- return;
- }
-
- OS << ",\"";
- if (Flags & ELF::SHF_ALLOC)
- OS << 'a';
- if (Flags & ELF::SHF_EXCLUDE)
- OS << 'e';
- if (Flags & ELF::SHF_EXECINSTR)
- OS << 'x';
- if (Flags & ELF::SHF_WRITE)
- OS << 'w';
- if (Flags & ELF::SHF_MERGE)
- OS << 'M';
- if (Flags & ELF::SHF_STRINGS)
- OS << 'S';
- if (Flags & ELF::SHF_TLS)
- OS << 'T';
- if (Flags & ELF::SHF_LINK_ORDER)
- OS << 'o';
- if (Flags & ELF::SHF_GROUP)
- OS << 'G';
- if (Flags & ELF::SHF_GNU_RETAIN)
- OS << 'R';
-
- // If there are os-specific flags, print them.
- if (T.isOSSolaris())
- if (Flags & ELF::SHF_SUNW_NODISCARD)
- OS << 'R';
-
- // If there are target-specific flags, print them.
- Triple::ArchType Arch = T.getArch();
- if (Arch == Triple::xcore) {
- if (Flags & ELF::XCORE_SHF_CP_SECTION)
- OS << 'c';
- if (Flags & ELF::XCORE_SHF_DP_SECTION)
- OS << 'd';
- } else if (T.isARM() || T.isThumb()) {
- if (Flags & ELF::SHF_ARM_PURECODE)
- OS << 'y';
- } else if (T.isAArch64()) {
- if (Flags & ELF::SHF_AARCH64_PURECODE)
- OS << 'y';
- } else if (Arch == Triple::hexagon) {
- if (Flags & ELF::SHF_HEX_GPREL)
- OS << 's';
- } else if (Arch == Triple::x86_64) {
- if (Flags & ELF::SHF_X86_64_LARGE)
- OS << 'l';
- }
-
- OS << '"';
-
- OS << ',';
-
- // If comment string is '@', e.g. as on ARM - use '%' instead
- if (MAI.getCommentString()[0] == '@')
- OS << '%';
- else
- OS << '@';
-
- if (Type == ELF::SHT_INIT_ARRAY)
- OS << "init_array";
- else if (Type == ELF::SHT_FINI_ARRAY)
- OS << "fini_array";
- else if (Type == ELF::SHT_PREINIT_ARRAY)
- OS << "preinit_array";
- else if (Type == ELF::SHT_NOBITS)
- OS << "nobits";
- else if (Type == ELF::SHT_NOTE)
- OS << "note";
- else if (Type == ELF::SHT_PROGBITS)
- OS << "progbits";
- else if (Type == ELF::SHT_X86_64_UNWIND)
- OS << "unwind";
- else if (Type == ELF::SHT_MIPS_DWARF)
- // Print hex value of the flag while we do not have
- // any standard symbolic representation of the flag.
- OS << "0x7000001e";
- else if (Type == ELF::SHT_LLVM_ODRTAB)
- OS << "llvm_odrtab";
- else if (Type == ELF::SHT_LLVM_LINKER_OPTIONS)
- OS << "llvm_linker_options";
- else if (Type == ELF::SHT_LLVM_CALL_GRAPH_PROFILE)
- OS << "llvm_call_graph_profile";
- else if (Type == ELF::SHT_LLVM_DEPENDENT_LIBRARIES)
- OS << "llvm_dependent_libraries";
- else if (Type == ELF::SHT_LLVM_SYMPART)
- OS << "llvm_sympart";
- else if (Type == ELF::SHT_LLVM_BB_ADDR_MAP)
- OS << "llvm_bb_addr_map";
- else if (Type == ELF::SHT_LLVM_OFFLOADING)
- OS << "llvm_offloading";
- else if (Type == ELF::SHT_LLVM_LTO)
- OS << "llvm_lto";
- else if (Type == ELF::SHT_LLVM_JT_SIZES)
- OS << "llvm_jt_sizes";
- else if (Type == ELF::SHT_LLVM_CFI_JUMP_TABLE)
- OS << "llvm_cfi_jump_table";
- else
- OS << "0x" << Twine::utohexstr(Type);
-
- if (EntrySize) {
- assert((Flags & ELF::SHF_MERGE) || Type == ELF::SHT_LLVM_CFI_JUMP_TABLE);
- OS << "," << EntrySize;
- }
-
- if (Flags & ELF::SHF_LINK_ORDER) {
- OS << ",";
- if (LinkedToSym)
- printName(OS, LinkedToSym->getName());
- else
- OS << '0';
- }
-
- if (Flags & ELF::SHF_GROUP) {
- OS << ",";
- printName(OS, Group.getPointer()->getName());
- if (isComdat())
- OS << ",comdat";
- }
-
- if (isUnique())
- OS << ",unique," << UniqueID;
-
- OS << '\n';
-
- if (Subsection) {
- OS << "\t.subsection\t" << Subsection;
- OS << '\n';
- }
-}
diff --git a/llvm/lib/MC/MCSectionGOFF.cpp b/llvm/lib/MC/MCSectionGOFF.cpp
deleted file mode 100644
index 8163e5b..0000000
--- a/llvm/lib/MC/MCSectionGOFF.cpp
+++ /dev/null
@@ -1,143 +0,0 @@
-//===- MCSectionGOFF.cpp - GOFF Code Section Representation ---------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/MC/MCSectionGOFF.h"
-#include "llvm/BinaryFormat/GOFF.h"
-#include "llvm/Support/raw_ostream.h"
-
-using namespace llvm;
-
-static void emitCATTR(raw_ostream &OS, StringRef Name, GOFF::ESDRmode Rmode,
- GOFF::ESDAlignment Alignment,
- GOFF::ESDLoadingBehavior LoadBehavior,
- GOFF::ESDExecutable Executable, bool IsReadOnly,
- uint32_t SortKey, uint8_t FillByteValue,
- StringRef PartName) {
- OS << Name << " CATTR ";
- OS << "ALIGN(" << static_cast<unsigned>(Alignment) << "),"
- << "FILL(" << static_cast<unsigned>(FillByteValue) << ")";
- switch (LoadBehavior) {
- case GOFF::ESD_LB_Deferred:
- OS << ",DEFLOAD";
- break;
- case GOFF::ESD_LB_NoLoad:
- OS << ",NOLOAD";
- break;
- default:
- break;
- }
- switch (Executable) {
- case GOFF::ESD_EXE_CODE:
- OS << ",EXECUTABLE";
- break;
- case GOFF::ESD_EXE_DATA:
- OS << ",NOTEXECUTABLE";
- break;
- default:
- break;
- }
- if (IsReadOnly)
- OS << ",READONLY";
- if (Rmode != GOFF::ESD_RMODE_None) {
- OS << ',';
- OS << "RMODE(";
- switch (Rmode) {
- case GOFF::ESD_RMODE_24:
- OS << "24";
- break;
- case GOFF::ESD_RMODE_31:
- OS << "31";
- break;
- case GOFF::ESD_RMODE_64:
- OS << "64";
- break;
- case GOFF::ESD_RMODE_None:
- break;
- }
- OS << ')';
- }
- if (SortKey)
- OS << ",PRIORITY(" << SortKey << ")";
- if (!PartName.empty())
- OS << ",PART(" << PartName << ")";
- OS << '\n';
-}
-
-static void emitXATTR(raw_ostream &OS, StringRef Name,
- GOFF::ESDLinkageType Linkage,
- GOFF::ESDExecutable Executable,
- GOFF::ESDBindingScope BindingScope) {
- OS << Name << " XATTR ";
- OS << "LINKAGE(" << (Linkage == GOFF::ESD_LT_OS ? "OS" : "XPLINK") << "),";
- if (Executable != GOFF::ESD_EXE_Unspecified)
- OS << "REFERENCE(" << (Executable == GOFF::ESD_EXE_CODE ? "CODE" : "DATA")
- << "),";
- if (BindingScope != GOFF::ESD_BSC_Unspecified) {
- OS << "SCOPE(";
- switch (BindingScope) {
- case GOFF::ESD_BSC_Section:
- OS << "SECTION";
- break;
- case GOFF::ESD_BSC_Module:
- OS << "MODULE";
- break;
- case GOFF::ESD_BSC_Library:
- OS << "LIBRARY";
- break;
- case GOFF::ESD_BSC_ImportExport:
- OS << "EXPORT";
- break;
- default:
- break;
- }
- OS << ')';
- }
- OS << '\n';
-}
-
-void MCSectionGOFF::printSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
- raw_ostream &OS,
- uint32_t Subsection) const {
- switch (SymbolType) {
- case GOFF::ESD_ST_SectionDefinition: {
- OS << Name << " CSECT\n";
- Emitted = true;
- break;
- }
- case GOFF::ESD_ST_ElementDefinition: {
- getParent()->printSwitchToSection(MAI, T, OS, Subsection);
- if (!Emitted) {
- emitCATTR(OS, Name, EDAttributes.Rmode, EDAttributes.Alignment,
- EDAttributes.LoadBehavior, GOFF::ESD_EXE_Unspecified,
- EDAttributes.IsReadOnly, 0, EDAttributes.FillByteValue,
- StringRef());
- Emitted = true;
- } else
- OS << Name << " CATTR\n";
- break;
- }
- case GOFF::ESD_ST_PartReference: {
- MCSectionGOFF *ED = getParent();
- ED->getParent()->printSwitchToSection(MAI, T, OS, Subsection);
- if (!Emitted) {
- emitCATTR(OS, ED->getName(), ED->getEDAttributes().Rmode,
- ED->EDAttributes.Alignment, ED->EDAttributes.LoadBehavior,
- PRAttributes.Executable, ED->EDAttributes.IsReadOnly,
- PRAttributes.SortKey, ED->EDAttributes.FillByteValue, Name);
- emitXATTR(OS, Name, PRAttributes.Linkage, PRAttributes.Executable,
- PRAttributes.BindingScope);
- ED->Emitted = true;
- Emitted = true;
- } else
- OS << ED->getName() << " CATTR PART(" << Name << ")\n";
- break;
- }
- default:
- llvm_unreachable("Wrong section type");
- }
-} \ No newline at end of file
diff --git a/llvm/lib/MC/MCSectionMachO.cpp b/llvm/lib/MC/MCSectionMachO.cpp
index 205313e..67c8235 100644
--- a/llvm/lib/MC/MCSectionMachO.cpp
+++ b/llvm/lib/MC/MCSectionMachO.cpp
@@ -7,6 +7,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCSectionMachO.h"
+#include "llvm/MC/MCAsmInfoDarwin.h"
#include "llvm/MC/SectionKind.h"
#include "llvm/Support/raw_ostream.h"
@@ -105,19 +106,20 @@ MCSectionMachO::MCSectionMachO(StringRef Segment, StringRef Section,
}
}
-void MCSectionMachO::printSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
- raw_ostream &OS,
- uint32_t Subsection) const {
- OS << "\t.section\t" << getSegmentName() << ',' << getName();
+void MCAsmInfoDarwin::printSwitchToSection(const MCSection &Section, uint32_t,
+ const Triple &T,
+ raw_ostream &OS) const {
+ auto &Sec = static_cast<const MCSectionMachO &>(Section);
+ OS << "\t.section\t" << Sec.getSegmentName() << ',' << Sec.getName();
// Get the section type and attributes.
- unsigned TAA = getTypeAndAttributes();
+ unsigned TAA = Sec.getTypeAndAttributes();
if (TAA == 0) {
OS << '\n';
return;
}
- MachO::SectionType SectionType = getType();
+ MachO::SectionType SectionType = Sec.getType();
assert(SectionType <= MachO::LAST_KNOWN_SECTION_TYPE &&
"Invalid SectionType specified!");
@@ -135,8 +137,8 @@ void MCSectionMachO::printSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
if (SectionAttrs == 0) {
// If we have a S_SYMBOL_STUBS size specified, print it along with 'none' as
// the attribute specifier.
- if (Reserved2 != 0)
- OS << ",none," << Reserved2;
+ if (Sec.Reserved2 != 0)
+ OS << ",none," << Sec.Reserved2;
OS << '\n';
return;
}
@@ -164,8 +166,8 @@ void MCSectionMachO::printSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
assert(SectionAttrs == 0 && "Unknown section attributes!");
// If we have a S_SYMBOL_STUBS size specified, print it.
- if (Reserved2 != 0)
- OS << ',' << Reserved2;
+ if (Sec.Reserved2 != 0)
+ OS << ',' << Sec.Reserved2;
OS << '\n';
}
diff --git a/llvm/lib/MC/MCSectionWasm.cpp b/llvm/lib/MC/MCSectionWasm.cpp
deleted file mode 100644
index a0493fa..0000000
--- a/llvm/lib/MC/MCSectionWasm.cpp
+++ /dev/null
@@ -1,99 +0,0 @@
-//===- lib/MC/MCSectionWasm.cpp - Wasm Code Section Representation --------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/MC/MCSectionWasm.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCSymbolWasm.h"
-#include "llvm/Support/raw_ostream.h"
-
-using namespace llvm;
-
-// Decides whether a '.section' directive
-// should be printed before the section name.
-bool MCSectionWasm::shouldOmitSectionDirective(StringRef Name,
- const MCAsmInfo &MAI) const {
- return MAI.shouldOmitSectionDirective(Name);
-}
-
-static void printName(raw_ostream &OS, StringRef Name) {
- if (Name.find_first_not_of("0123456789_."
- "abcdefghijklmnopqrstuvwxyz"
- "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) {
- OS << Name;
- return;
- }
- OS << '"';
- for (const char *B = Name.begin(), *E = Name.end(); B < E; ++B) {
- if (*B == '"') // Unquoted "
- OS << "\\\"";
- else if (*B != '\\') // Neither " or backslash
- OS << *B;
- else if (B + 1 == E) // Trailing backslash
- OS << "\\\\";
- else {
- OS << B[0] << B[1]; // Quoted character
- ++B;
- }
- }
- OS << '"';
-}
-
-void MCSectionWasm::printSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
- raw_ostream &OS,
- uint32_t Subsection) const {
-
- if (shouldOmitSectionDirective(getName(), MAI)) {
- OS << '\t' << getName();
- if (Subsection)
- OS << '\t' << Subsection;
- OS << '\n';
- return;
- }
-
- OS << "\t.section\t";
- printName(OS, getName());
- OS << ",\"";
-
- if (IsPassive)
- OS << 'p';
- if (Group)
- OS << 'G';
- if (SegmentFlags & wasm::WASM_SEG_FLAG_STRINGS)
- OS << 'S';
- if (SegmentFlags & wasm::WASM_SEG_FLAG_TLS)
- OS << 'T';
- if (SegmentFlags & wasm::WASM_SEG_FLAG_RETAIN)
- OS << 'R';
-
- OS << '"';
-
- OS << ',';
-
- // If comment string is '@', e.g. as on ARM - use '%' instead
- if (MAI.getCommentString()[0] == '@')
- OS << '%';
- else
- OS << '@';
-
- // TODO: Print section type.
-
- if (Group) {
- OS << ",";
- printName(OS, Group->getName());
- OS << ",comdat";
- }
-
- if (isUnique())
- OS << ",unique," << UniqueID;
-
- OS << '\n';
-
- if (Subsection)
- OS << "\t.subsection\t" << Subsection << '\n';
-}
diff --git a/llvm/lib/MC/MCSectionXCOFF.cpp b/llvm/lib/MC/MCSectionXCOFF.cpp
deleted file mode 100644
index 3a67fa6..0000000
--- a/llvm/lib/MC/MCSectionXCOFF.cpp
+++ /dev/null
@@ -1,132 +0,0 @@
-//===- lib/MC/MCSectionXCOFF.cpp - XCOFF Code Section Representation ------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/MC/MCSectionXCOFF.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/Support/Format.h"
-#include "llvm/Support/raw_ostream.h"
-namespace llvm {
-class MCExpr;
-class Triple;
-} // namespace llvm
-
-using namespace llvm;
-
-MCSectionXCOFF::~MCSectionXCOFF() = default;
-
-void MCSectionXCOFF::printCsectDirective(raw_ostream &OS) const {
- OS << "\t.csect " << QualName->getName() << "," << Log2(getAlign()) << '\n';
-}
-
-void MCSectionXCOFF::printSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
- raw_ostream &OS,
- uint32_t Subsection) const {
- if (getKind().isText()) {
- if (getMappingClass() != XCOFF::XMC_PR)
- report_fatal_error("Unhandled storage-mapping class for .text csect");
-
- printCsectDirective(OS);
- return;
- }
-
- if (getKind().isReadOnly()) {
- if (getMappingClass() != XCOFF::XMC_RO &&
- getMappingClass() != XCOFF::XMC_TD)
- report_fatal_error("Unhandled storage-mapping class for .rodata csect.");
- printCsectDirective(OS);
- return;
- }
-
- if (getKind().isReadOnlyWithRel()) {
- if (getMappingClass() != XCOFF::XMC_RW &&
- getMappingClass() != XCOFF::XMC_RO &&
- getMappingClass() != XCOFF::XMC_TD)
- report_fatal_error(
- "Unexepected storage-mapping class for ReadOnlyWithRel kind");
- printCsectDirective(OS);
- return;
- }
-
- // Initialized TLS data.
- if (getKind().isThreadData()) {
- // We only expect XMC_TL here for initialized TLS data.
- if (getMappingClass() != XCOFF::XMC_TL)
- report_fatal_error("Unhandled storage-mapping class for .tdata csect.");
- printCsectDirective(OS);
- return;
- }
-
- if (getKind().isData()) {
- switch (getMappingClass()) {
- case XCOFF::XMC_RW:
- case XCOFF::XMC_DS:
- case XCOFF::XMC_TD:
- printCsectDirective(OS);
- break;
- case XCOFF::XMC_TC:
- case XCOFF::XMC_TE:
- break;
- case XCOFF::XMC_TC0:
- OS << "\t.toc\n";
- break;
- default:
- report_fatal_error(
- "Unhandled storage-mapping class for .data csect.");
- }
- return;
- }
-
- if (isCsect() && getMappingClass() == XCOFF::XMC_TD) {
- // Common csect type (uninitialized storage) does not have to print csect
- // directive for section switching unless it is local.
- if (getKind().isCommon() && !getKind().isBSSLocal())
- return;
-
- assert(getKind().isBSS() && "Unexpected section kind for toc-data");
- printCsectDirective(OS);
- return;
- }
- // Common csect type (uninitialized storage) does not have to print csect
- // directive for section switching.
- if (isCsect() && getCSectType() == XCOFF::XTY_CM) {
- assert((getMappingClass() == XCOFF::XMC_RW ||
- getMappingClass() == XCOFF::XMC_BS ||
- getMappingClass() == XCOFF::XMC_UL) &&
- "Generated a storage-mapping class for a common/bss/tbss csect we "
- "don't "
- "understand how to switch to.");
- // Common symbols and local zero-initialized symbols for TLS and Non-TLS are
- // eligible for .bss/.tbss csect, getKind().isThreadBSS() is used to cover
- // TLS common and zero-initialized local symbols since linkage type (in the
- // GlobalVariable) is not accessible in this class.
- assert((getKind().isBSSLocal() || getKind().isCommon() ||
- getKind().isThreadBSS()) &&
- "wrong symbol type for .bss/.tbss csect");
- // Don't have to print a directive for switching to section for commons and
- // zero-initialized TLS data. The '.comm' and '.lcomm' directives of the
- // variable will create the needed csect.
- return;
- }
-
- // Zero-initialized TLS data with weak or external linkage are not eligible to
- // be put into common csect.
- if (getKind().isThreadBSS()) {
- printCsectDirective(OS);
- return;
- }
-
- // XCOFF debug sections.
- if (getKind().isMetadata() && isDwarfSect()) {
- OS << "\n\t.dwsect " << format("0x%" PRIx32, *getDwarfSubtypeFlags())
- << '\n';
- OS << getName() << ':' << '\n';
- return;
- }
-
- report_fatal_error("Printing for this SectionKind is unimplemented.");
-}
diff --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp
index add021b..bc73981 100644
--- a/llvm/lib/MC/MCStreamer.cpp
+++ b/llvm/lib/MC/MCStreamer.cpp
@@ -56,12 +56,11 @@ void MCTargetStreamer::finish() {}
void MCTargetStreamer::emitConstantPools() {}
-void MCTargetStreamer::changeSection(const MCSection *CurSection,
- MCSection *Section, uint32_t Subsection,
- raw_ostream &OS) {
- Section->printSwitchToSection(*Streamer.getContext().getAsmInfo(),
- Streamer.getContext().getTargetTriple(), OS,
- Subsection);
+void MCTargetStreamer::changeSection(const MCSection *, MCSection *Sec,
+ uint32_t Subsection, raw_ostream &OS) {
+ auto &MAI = *Streamer.getContext().getAsmInfo();
+ MAI.printSwitchToSection(*Sec, Subsection,
+ Streamer.getContext().getTargetTriple(), OS);
}
void MCTargetStreamer::emitDwarfFileDirective(StringRef Directive) {
generated by cgit v1.1 at 2025-07-28 10:25:11 +0000