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-rw-r--r--lib/CodeGen/ELFWriter.cpp116
1 files changed, 50 insertions, 66 deletions
diff --git a/lib/CodeGen/ELFWriter.cpp b/lib/CodeGen/ELFWriter.cpp
index 0beda80ca1..ee9cecd579 100644
--- a/lib/CodeGen/ELFWriter.cpp
+++ b/lib/CodeGen/ELFWriter.cpp
@@ -37,7 +37,6 @@
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetObjInfo.h"
#include "llvm/Support/Mangler.h"
#include "llvm/Support/Streams.h"
using namespace llvm;
@@ -54,20 +53,8 @@ namespace llvm {
ELFWriter::ELFSection *ES; // Section to write to.
std::vector<unsigned char> *OutBuffer;
size_t FnStart;
-
- /// Target machine description.
- ///
- TargetMachine &TM;
-
- /// Target object writer info.
- ///
- const TargetObjInfo *TOI;
public:
- ELFCodeEmitter(ELFWriter &ew, TargetMachine &tm)
- : EW(ew), OutBuffer(0), TM(tm) {
- // Create the target object info object for this target.
- TOI = TM.getTargetObjInfo();
- }
+ ELFCodeEmitter(ELFWriter &ew) : EW(ew), OutBuffer(0) {}
void startFunction(MachineFunction &F);
bool finishFunction(MachineFunction &F);
@@ -126,7 +113,7 @@ void ELFCodeEmitter::startFunction(MachineFunction &F) {
// Add padding zeros to the end of the buffer to make sure that the
// function will start on the correct byte alignment within the section.
- TOI->align(*OutBuffer, Align);
+ ELFWriter::align(*OutBuffer, Align);
FnStart = OutBuffer->size();
}
@@ -178,11 +165,8 @@ ELFWriter::ELFWriter(std::ostream &o, TargetMachine &tm) : O(o), TM(tm) {
isLittleEndian = TM.getTargetData()->isLittleEndian();
// Create the machine code emitter object for this target.
- MCE = new ELFCodeEmitter(*this, TM);
+ MCE = new ELFCodeEmitter(*this);
NumSections = 0;
-
- // Create the target object info object for this target.
- TOI = TM.getTargetObjInfo();
}
ELFWriter::~ELFWriter() {
@@ -197,36 +181,36 @@ bool ELFWriter::doInitialization(Module &M) {
// Local alias to shortenify coming code.
std::vector<unsigned char> &FH = FileHeader;
- TOI->outbyte(FH, 0x7F); // EI_MAG0
- TOI->outbyte(FH, 'E'); // EI_MAG1
- TOI->outbyte(FH, 'L'); // EI_MAG2
- TOI->outbyte(FH, 'F'); // EI_MAG3
- TOI->outbyte(FH, is64Bit ? 2 : 1); // EI_CLASS
- TOI->outbyte(FH, isLittleEndian ? 1 : 2); // EI_DATA
- TOI->outbyte(FH, 1); // EI_VERSION
- FH.resize(16); // EI_PAD up to 16 bytes.
+ outbyte(FH, 0x7F); // EI_MAG0
+ outbyte(FH, 'E'); // EI_MAG1
+ outbyte(FH, 'L'); // EI_MAG2
+ outbyte(FH, 'F'); // EI_MAG3
+ outbyte(FH, is64Bit ? 2 : 1); // EI_CLASS
+ outbyte(FH, isLittleEndian ? 1 : 2); // EI_DATA
+ outbyte(FH, 1); // EI_VERSION
+ FH.resize(16); // EI_PAD up to 16 bytes.
// This should change for shared objects.
- TOI->outhalf(FH, 1); // e_type = ET_REL
- TOI->outhalf(FH, e_machine); // e_machine = whatever the target wants
- TOI->outword(FH, 1); // e_version = 1
- TOI->outaddr(FH, 0); // e_entry = 0 -> no entry point in .o file
- TOI->outaddr(FH, 0); // e_phoff = 0 -> no program header for .o
+ outhalf(FH, 1); // e_type = ET_REL
+ outhalf(FH, e_machine); // e_machine = whatever the target wants
+ outword(FH, 1); // e_version = 1
+ outaddr(FH, 0); // e_entry = 0 -> no entry point in .o file
+ outaddr(FH, 0); // e_phoff = 0 -> no program header for .o
ELFHeader_e_shoff_Offset = FH.size();
- TOI->outaddr(FH, 0); // e_shoff
- TOI->outword(FH, e_flags); // e_flags = whatever the target wants
+ outaddr(FH, 0); // e_shoff
+ outword(FH, e_flags); // e_flags = whatever the target wants
- TOI->outhalf(FH, is64Bit ? 64 : 52); // e_ehsize = ELF header size
- TOI->outhalf(FH, 0); // e_phentsize = prog header entry size
- TOI->outhalf(FH, 0); // e_phnum = # prog header entries=0
- TOI->outhalf(FH, is64Bit ? 64 : 40); // e_shentsize = sect hdr entry size
+ outhalf(FH, is64Bit ? 64 : 52); // e_ehsize = ELF header size
+ outhalf(FH, 0); // e_phentsize = prog header entry size
+ outhalf(FH, 0); // e_phnum = # prog header entries = 0
+ outhalf(FH, is64Bit ? 64 : 40); // e_shentsize = sect hdr entry size
ELFHeader_e_shnum_Offset = FH.size();
- TOI->outhalf(FH, 0); // e_shnum = # of section header ents
+ outhalf(FH, 0); // e_shnum = # of section header ents
ELFHeader_e_shstrndx_Offset = FH.size();
- TOI->outhalf(FH, 0); // e_shstrndx = Section # of '.shstrtab'
+ outhalf(FH, 0); // e_shstrndx = Section # of '.shstrtab'
// Add the null section, which is required to be first in the file.
getSection("", 0, 0);
@@ -368,7 +352,7 @@ void ELFWriter::EmitSymbolTable() {
DataBuffer &StrTabBuf = StrTab.SectionData;
// Set the zero'th symbol to a null byte, as required.
- TOI->outbyte(StrTabBuf, 0);
+ outbyte(StrTabBuf, 0);
SymbolTable[0].NameIdx = 0;
unsigned Index = 1;
for (unsigned i = 1, e = SymbolTable.size(); i != e; ++i) {
@@ -405,22 +389,22 @@ void ELFWriter::EmitSymbolTable() {
if (!is64Bit) { // 32-bit and 64-bit formats are shuffled a bit.
for (unsigned i = 0, e = SymbolTable.size(); i != e; ++i) {
ELFSym &Sym = SymbolTable[i];
- TOI->outword(SymTabBuf, Sym.NameIdx);
- TOI->outaddr32(SymTabBuf, Sym.Value);
- TOI->outword(SymTabBuf, Sym.Size);
- TOI->outbyte(SymTabBuf, Sym.Info);
- TOI->outbyte(SymTabBuf, Sym.Other);
- TOI->outhalf(SymTabBuf, Sym.SectionIdx);
+ outword(SymTabBuf, Sym.NameIdx);
+ outaddr32(SymTabBuf, Sym.Value);
+ outword(SymTabBuf, Sym.Size);
+ outbyte(SymTabBuf, Sym.Info);
+ outbyte(SymTabBuf, Sym.Other);
+ outhalf(SymTabBuf, Sym.SectionIdx);
}
} else {
for (unsigned i = 0, e = SymbolTable.size(); i != e; ++i) {
ELFSym &Sym = SymbolTable[i];
- TOI->outword(SymTabBuf, Sym.NameIdx);
- TOI->outbyte(SymTabBuf, Sym.Info);
- TOI->outbyte(SymTabBuf, Sym.Other);
- TOI->outhalf(SymTabBuf, Sym.SectionIdx);
- TOI->outaddr64(SymTabBuf, Sym.Value);
- TOI->outxword(SymTabBuf, Sym.Size);
+ outword(SymTabBuf, Sym.NameIdx);
+ outbyte(SymTabBuf, Sym.Info);
+ outbyte(SymTabBuf, Sym.Other);
+ outhalf(SymTabBuf, Sym.SectionIdx);
+ outaddr64(SymTabBuf, Sym.Value);
+ outxword(SymTabBuf, Sym.Size);
}
}
@@ -436,7 +420,7 @@ void ELFWriter::EmitSectionTableStringTable() {
// Now that we know which section number is the .shstrtab section, update the
// e_shstrndx entry in the ELF header.
- TOI->fixhalf(FileHeader, SHStrTab.SectionIdx, ELFHeader_e_shstrndx_Offset);
+ fixhalf(FileHeader, SHStrTab.SectionIdx, ELFHeader_e_shstrndx_Offset);
// Set the NameIdx of each section in the string table and emit the bytes for
// the string table.
@@ -487,11 +471,11 @@ void ELFWriter::OutputSectionsAndSectionTable() {
// Now that we know where all of the sections will be emitted, set the e_shnum
// entry in the ELF header.
- TOI->fixhalf(FileHeader, NumSections, ELFHeader_e_shnum_Offset);
+ fixhalf(FileHeader, NumSections, ELFHeader_e_shnum_Offset);
// Now that we know the offset in the file of the section table, update the
// e_shoff address in the ELF header.
- TOI->fixaddr(FileHeader, FileOff, ELFHeader_e_shoff_Offset);
+ fixaddr(FileHeader, FileOff, ELFHeader_e_shoff_Offset);
// Now that we know all of the data in the file header, emit it and all of the
// sections!
@@ -513,16 +497,16 @@ void ELFWriter::OutputSectionsAndSectionTable() {
O.write((char*)&S.SectionData[0], S.SectionData.size());
FileOff += S.SectionData.size();
- TOI->outword(Table, S.NameIdx); // sh_name - Symbol table name idx
- TOI->outword(Table, S.Type); // sh_type - Section contents & semantics
- TOI->outword(Table, S.Flags); // sh_flags - Section flags
- TOI->outaddr(Table, S.Addr); // sh_addr - The mem addr this section is in
- TOI->outaddr(Table, S.Offset); // sh_offset - Offset from the file start
- TOI->outword(Table, S.Size); // sh_size - The section size
- TOI->outword(Table, S.Link); // sh_link - Section header table index link
- TOI->outword(Table, S.Info); // sh_info - Auxillary information
- TOI->outword(Table, S.Align); // sh_addralign - Alignment of section
- TOI->outword(Table, S.EntSize); // sh_entsize - Size of entries in the sect
+ outword(Table, S.NameIdx); // sh_name - Symbol table name idx
+ outword(Table, S.Type); // sh_type - Section contents & semantics
+ outword(Table, S.Flags); // sh_flags - Section flags.
+ outaddr(Table, S.Addr); // sh_addr - The mem addr this section is in.
+ outaddr(Table, S.Offset); // sh_offset - Offset from the file start.
+ outword(Table, S.Size); // sh_size - The section size.
+ outword(Table, S.Link); // sh_link - Section header table index link.
+ outword(Table, S.Info); // sh_info - Auxillary information.
+ outword(Table, S.Align); // sh_addralign - Alignment of section.
+ outword(Table, S.EntSize); // sh_entsize - Size of entries in the section.
SectionList.pop_front();
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-01 09:01:54 +0000