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Stub out support for symbol disassembly in llvm-objdump.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143149 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2011-10-27 21:46:31 +00:00
parent b42d47605b
commit f1b7448201
1 changed files with 45 additions and 6 deletions
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51
tools/llvm-objdump/llvm-objdump.cpp
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@ -23,9 +23,11 @@
#include "llvm/ADT/Triple.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDisassembler.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
@ -159,8 +161,30 @@ static bool RelocAddressLess(RelocationRef a, RelocationRef b) {
return a_addr < b_addr;
}
// OperandInfoCallback - Callback from the MCDisassembler to perform
// relocation resolution for operands while disassembling.
int OperandInfoCallback(void *ObjectFile, uint64_t PC, uint64_t Offset,
uint64_t Size, int TagType, void *TagBuf) {
LLVMOpInfo1 *OpInfo = static_cast<LLVMOpInfo1*>(TagBuf);
OpInfo->AddSymbol.Present = 0;
OpInfo->SubtractSymbol.Present = 0;
OpInfo->VariantKind = LLVMDisassembler_VariantKind_None;
return 0;
}
// SymbolLookupCallback - Callback from the MCDisassembler to convert
// offsets to symbolic references while disassembling.
const char* SymbolLookupCallback(void *ObjectFile, uint64_t ReferenceValue,
uint64_t *ReferenceType, uint64_t PC,
const char **ReferenceName) {
*ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
return 0;
}
static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) {
const Target *TheTarget = GetTarget(Obj);
if (!TheTarget) {
// GetTarget prints out stuff.
return;
@ -227,6 +251,14 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) {
return;
}
OwningPtr<const MCRegisterInfo>
RegInfo(TheTarget->createMCRegInfo(TripleName));
if (!RegInfo) {
errs() << "error: no register info for target " << TripleName << "\n";
return;
}
OwningPtr<const MCSubtargetInfo> STI(
TheTarget->createMCSubtargetInfo(TripleName, "", ""));
@ -235,13 +267,20 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) {
return;
}
OwningPtr<const MCDisassembler> DisAsm(
MCContext Context(*AsmInfo, *RegInfo, 0);
OwningPtr<MCDisassembler> DisAsm(
TheTarget->createMCDisassembler(*STI));
if (!DisAsm) {
errs() << "error: no disassembler for target " << TripleName << "\n";
return;
}
// Setup the disassembler for symbolic decoding.
DisAsm->setupForSymbolicDisassembly(OperandInfoCallback,
SymbolLookupCallback,
const_cast<ObjectFile*>(Obj),
&Context);
int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
OwningPtr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
AsmPrinterVariant, *AsmInfo, *STI));
@ -289,7 +328,7 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) {
if (DisAsm->getInstruction(Inst, Size, memoryObject, Index,
DebugOut, nulls())) {
outs() << format("%8llx:\t", SectionAddr + Index);
outs() << format("%8x:\t", SectionAddr + Index);
DumpBytes(StringRef(Bytes.data() + Index, Size));
IP->printInst(&Inst, outs(), "");
outs() << "\n";
@ -316,7 +355,7 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) {
if (error(rel_cur->getTypeName(name))) goto skip_print_rel;
if (error(rel_cur->getValueString(val))) goto skip_print_rel;
outs() << format("\t\t\t%8llx: ", SectionAddr + addr) << name << "\t"
outs() << format("\t\t\t%8x: ", SectionAddr + addr) << name << "\t"
<< val << "\n";
skip_print_rel:
@ -400,7 +439,7 @@ static void PrintSectionContents(const ObjectFile *o) {
// Dump out the content as hex and printable ascii characters.
for (std::size_t addr = 0, end = Contents.size(); addr < end; addr += 16) {
outs() << format(" %04llx ", BaseAddr + addr);
outs() << format(" %04x ", BaseAddr + addr);
// Dump line of hex.
for (std::size_t i = 0; i < 16; ++i) {
if (i != 0 && i % 4 == 0)
@ -506,7 +545,7 @@ static void PrintSymbolTable(const ObjectFile *o) {
else if (Type == SymbolRef::ST_Function)
FileFunc = 'F';
outs() << format("%08llx", Offset) << " "
outs() << format("%08x", Offset) << " "
<< GlobLoc // Local -> 'l', Global -> 'g', Neither -> ' '
<< (Weak ? 'w' : ' ') // Weak?
<< ' ' // Constructor. Not supported yet.
@ -526,7 +565,7 @@ static void PrintSymbolTable(const ObjectFile *o) {
outs() << SectionName;
}
outs() << '\t'
<< format("%08llx ", Size)
<< format("%08x ", Size)
<< Name
<< '\n';
}