- Remove custom handling of jumptables by the elf writter (this was
a dirty hack and isn't need anymore since the last x86 code emitter patch)
- Add a target-dependent modifier to addend calculation
- Use R_X86_64_32S relocation for X86::reloc_absolute_word_sext
- Use getELFSectionFlags whenever possible
- fix getTextSection to use TLOF and emit the right text section
- Handle global emission for static ctors, dtors and Type::PointerTyID
- Some minor fixes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78176 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/ELFWriter.h b/lib/CodeGen/ELFWriter.h
index ebcfe35..fe72652 100644
--- a/lib/CodeGen/ELFWriter.h
+++ b/lib/CodeGen/ELFWriter.h
@@ -33,6 +33,7 @@
class ObjectCodeEmitter;
class TargetAsmInfo;
class TargetELFWriterInfo;
+ class TargetLoweringObjectFile;
class raw_ostream;
class SectionKind;
class MCContext;
@@ -66,6 +67,7 @@
/// Target machine description.
TargetMachine &TM;
+ /// Context object for machine code objects.
MCContext &OutContext;
/// Target Elf Writer description.
@@ -78,6 +80,10 @@
/// code for functions to the .o file.
ELFCodeEmitter *ElfCE;
+ /// TLOF - Target Lowering Object File, provide section names for globals
+ /// and other object file specific stuff
+ const TargetLoweringObjectFile &TLOF;
+
/// TAI - Target Asm Info, provide information about section names for
/// globals and other target specific stuff.
const TargetAsmInfo *TAI;
@@ -176,13 +182,6 @@
return *SN;
}
- /// TODO: support mangled names here to emit the right .text section
- /// for c++ object files.
- ELFSection &getTextSection() {
- return getSection(".text", ELFSection::SHT_PROGBITS,
- ELFSection::SHF_EXECINSTR | ELFSection::SHF_ALLOC);
- }
-
ELFSection &getNonExecStackSection() {
return getSection(".note.GNU-stack", ELFSection::SHT_PROGBITS, 0, 1);
}
@@ -213,21 +212,24 @@
return getSection("", ELFSection::SHT_NULL, 0);
}
+ ELFSection &getCtorSection();
+ ELFSection &getDtorSection();
ELFSection &getJumpTableSection();
ELFSection &getConstantPoolSection(MachineConstantPoolEntry &CPE);
+ ELFSection &getTextSection(Function *F);
ELFSection &getRelocSection(ELFSection &S);
// Helpers for obtaining ELF specific info.
unsigned getGlobalELFBinding(const GlobalValue *GV);
unsigned getGlobalELFType(const GlobalValue *GV);
unsigned getGlobalELFVisibility(const GlobalValue *GV);
- unsigned getElfSectionFlags(SectionKind Kind);
+ unsigned getElfSectionFlags(SectionKind Kind, bool IsAlloc = true);
- // addGlobalSymbol - Add a global to be processed and to the
- // global symbol lookup, use a zero index for non private symbols
- // because the table index will be determined later.
- void addGlobalSymbol(const GlobalValue *GV);
-
+ // addGlobalSymbol - Add a global to be processed and to
+ // the global symbol lookup, use a zero index because the table
+ // index will be determined later.
+ void addGlobalSymbol(const GlobalValue *GV, bool AddToLookup = false);
+
// addExternalSymbol - Add the external to be processed and to the
// external symbol lookup, use a zero index because the symbol
// table index will be determined later
@@ -246,7 +248,10 @@
void EmitGlobalConstant(const Constant *C, ELFSection &GblS);
void EmitGlobalConstantStruct(const ConstantStruct *CVS,
ELFSection &GblS);
- ELFSection &getGlobalSymELFSection(const GlobalVariable *GV, ELFSym &Sym);
+ void emitGlobalDataRelocation(const GlobalValue *GV, unsigned Size,
+ ELFSection &GblS);
+ bool EmitSpecialLLVMGlobal(const GlobalVariable *GV);
+ void EmitXXStructorList(Constant *List, ELFSection &Xtor);
void EmitRelocations();
void EmitRelocation(BinaryObject &RelSec, ELFRelocation &Rel, bool HasRelA);
void EmitSectionHeader(BinaryObject &SHdrTab, const ELFSection &SHdr);