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/*===- pso-stub.c - Stub executable to run llvm bitcode files -------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//===----------------------------------------------------------------------===*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "llvm/Object/ObjectFile.h"
#include "llvm/Analysis/Verifier.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/FormattedStream.h"
using namespace llvm;
using namespace llvm::object;
static cl::opt<std::string>
InputFilename(cl::Positional, cl::desc("<input object>"), cl::init(""));
void DumpSymbolHeader() {
outs() << format(" %-32s", (const char*)"Name")
<< format(" %-4s", (const char*)"Type")
<< format(" %-16s", (const char*)"Address")
<< format(" %-16s", (const char*)"Size")
<< format(" %-16s", (const char*)"FileOffset")
<< format(" %-26s", (const char*)"Flags")
<< "\n";
}
const char *GetTypeStr(SymbolRef::Type Type) {
switch (Type) {
case SymbolRef::ST_Unknown: return "?";
case SymbolRef::ST_Data: return "DATA";
case SymbolRef::ST_Debug: return "DBG";
case SymbolRef::ST_File: return "FILE";
case SymbolRef::ST_Function: return "FUNC";
case SymbolRef::ST_Other: return "-";
}
return "INV";
}
std::string GetFlagStr(uint32_t Flags) {
std::string result;
if (Flags & SymbolRef::SF_Undefined)
result += "undef,";
if (Flags & SymbolRef::SF_Global)
result += "global,";
if (Flags & SymbolRef::SF_Weak)
result += "weak,";
if (Flags & SymbolRef::SF_Absolute)
result += "absolute,";
if (Flags & SymbolRef::SF_ThreadLocal)
result += "threadlocal,";
if (Flags & SymbolRef::SF_Common)
result += "common,";
if (Flags & SymbolRef::SF_FormatSpecific)
result += "formatspecific,";
// Remove trailing comma
if (result.size() > 0) {
result.erase(result.size() - 1);
}
return result;
}
void DumpSymbol(const SymbolRef &sym) {
StringRef Name;
SymbolRef::Type Type;
uint32_t Flags;
uint64_t Address;
uint64_t Size;
uint64_t FileOffset;
sym.getName(Name);
sym.getAddress(Address);
sym.getSize(Size);
sym.getFileOffset(FileOffset);
sym.getType(Type);
sym.getFlags(Flags);
// format() can't handle StringRefs
outs() << format(" %-32s", Name.str().c_str())
<< format(" %-4s", GetTypeStr(Type))
<< format(" %16"PRIx64, Address)
<< format(" %16"PRIx64, Size)
<< format(" %16"PRIx64, FileOffset)
<< " " << GetFlagStr(Flags)
<< "\n";
}
// Iterate through the normal symbols in the ObjectFile
void DumpSymbols(const ObjectFile *obj) {
error_code ec;
uint32_t count = 0;
outs() << "Symbols:\n";
symbol_iterator it = obj->begin_symbols();
symbol_iterator ie = obj->end_symbols();
while (it != ie) {
DumpSymbol(*it);
it.increment(ec);
if (ec)
report_fatal_error("Symbol iteration failed");
++count;
}
outs() << " Total: " << count << "\n\n";
}
// Iterate through the dynamic symbols in the ObjectFile.
void DumpDynamicSymbols(const ObjectFile *obj) {
error_code ec;
uint32_t count = 0;
outs() << "Dynamic Symbols:\n";
symbol_iterator it = obj->begin_dynamic_symbols();
symbol_iterator ie = obj->end_dynamic_symbols();
while (it != ie) {
DumpSymbol(*it);
it.increment(ec);
if (ec)
report_fatal_error("Symbol iteration failed");
++count;
}
outs() << " Total: " << count << "\n\n";
}
void DumpLibrary(const LibraryRef &lib) {
StringRef path;
lib.getPath(path);
outs() << " " << path << "\n";
}
// Iterate through needed libraries
void DumpLibrariesNeeded(const ObjectFile *obj) {
error_code ec;
uint32_t count = 0;
library_iterator it = obj->begin_libraries_needed();
library_iterator ie = obj->end_libraries_needed();
outs() << "Libraries needed:\n";
while (it != ie) {
DumpLibrary(*it);
it.increment(ec);
if (ec)
report_fatal_error("Needed libraries iteration failed");
++count;
}
outs() << " Total: " << count << "\n\n";
}
void DumpHeaders(const ObjectFile *obj) {
outs() << "File Format : " << obj->getFileFormatName() << "\n";
outs() << "Arch : "
<< Triple::getArchTypeName((llvm::Triple::ArchType)obj->getArch())
<< "\n";
outs() << "Address Size: " << (8*obj->getBytesInAddress()) << " bits\n";
outs() << "Load Name : " << obj->getLoadName() << "\n";
outs() << "\n";
}
int main(int argc, char** argv) {
error_code ec;
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
cl::ParseCommandLineOptions(argc, argv,
"LLVM Object Reader\n");
if (InputFilename.empty()) {
errs() << "Please specify an input filename\n";
return 1;
}
// Open the object file
OwningPtr<MemoryBuffer> File;
if (MemoryBuffer::getFile(InputFilename, File)) {
errs() << InputFilename << ": Open failed\n";
return 1;
}
ObjectFile *obj = ObjectFile::createObjectFile(File.take());
if (!obj) {
errs() << InputFilename << ": Object type not recognized\n";
}
DumpHeaders(obj);
DumpSymbols(obj);
DumpDynamicSymbols(obj);
DumpLibrariesNeeded(obj);
return 0;
}
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