forked from OSchip/llvm-project
107 lines
3.6 KiB
C++
107 lines
3.6 KiB
C++
//===-- llvm-symbolizer.cpp - Simple addr2line-like symbolizer ------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This utility works much like "addr2line". It is able of transforming
|
|
// tuples (module name, module offset) to code locations (function name,
|
|
// file, line number, column number). It is targeted for compiler-rt tools
|
|
// (especially AddressSanitizer and ThreadSanitizer) that can use it
|
|
// to symbolize stack traces in their error reports.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "LLVMSymbolize.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/Support/Debug.h"
|
|
#include "llvm/Support/ManagedStatic.h"
|
|
#include "llvm/Support/PrettyStackTrace.h"
|
|
#include "llvm/Support/Signals.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include <cstdio>
|
|
#include <cstring>
|
|
#include <string>
|
|
|
|
using namespace llvm;
|
|
using namespace symbolize;
|
|
|
|
static cl::opt<bool>
|
|
ClUseSymbolTable("use-symbol-table", cl::init(true),
|
|
cl::desc("Prefer names in symbol table to names "
|
|
"in debug info"));
|
|
|
|
static cl::opt<bool>
|
|
ClPrintFunctions("functions", cl::init(true),
|
|
cl::desc("Print function names as well as line "
|
|
"information for a given address"));
|
|
|
|
static cl::opt<bool>
|
|
ClPrintInlining("inlining", cl::init(true),
|
|
cl::desc("Print all inlined frames for a given address"));
|
|
|
|
static cl::opt<bool>
|
|
ClDemangle("demangle", cl::init(true), cl::desc("Demangle function names"));
|
|
|
|
static bool parseCommand(bool &IsData, std::string &ModuleName,
|
|
uint64_t &ModuleOffset) {
|
|
const char *kDataCmd = "DATA ";
|
|
const char *kCodeCmd = "CODE ";
|
|
const int kMaxInputStringLength = 1024;
|
|
const char kDelimiters[] = " \n";
|
|
char InputString[kMaxInputStringLength];
|
|
if (!fgets(InputString, sizeof(InputString), stdin))
|
|
return false;
|
|
IsData = false;
|
|
ModuleName = "";
|
|
std::string ModuleOffsetStr = "";
|
|
char *pos = InputString;
|
|
if (strncmp(pos, kDataCmd, strlen(kDataCmd)) == 0) {
|
|
IsData = true;
|
|
pos += strlen(kDataCmd);
|
|
} else if (strncmp(pos, kCodeCmd, strlen(kCodeCmd)) == 0) {
|
|
IsData = false;
|
|
pos += strlen(kCodeCmd);
|
|
} else {
|
|
// If no cmd, assume it's CODE.
|
|
IsData = false;
|
|
}
|
|
// FIXME: Handle case when filename is given in quotes.
|
|
if (char *FilePath = strtok(pos, kDelimiters)) {
|
|
ModuleName = FilePath;
|
|
if (char *OffsetStr = strtok((char *)0, kDelimiters))
|
|
ModuleOffsetStr = OffsetStr;
|
|
}
|
|
if (StringRef(ModuleOffsetStr).getAsInteger(0, ModuleOffset))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
// Print stack trace if we signal out.
|
|
sys::PrintStackTraceOnErrorSignal();
|
|
PrettyStackTraceProgram X(argc, argv);
|
|
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
|
|
|
|
cl::ParseCommandLineOptions(argc, argv, "llvm symbolizer for compiler-rt\n");
|
|
LLVMSymbolizer::Options Opts(ClUseSymbolTable, ClPrintFunctions,
|
|
ClPrintInlining, ClDemangle);
|
|
LLVMSymbolizer Symbolizer(Opts);
|
|
|
|
bool IsData = false;
|
|
std::string ModuleName;
|
|
uint64_t ModuleOffset;
|
|
while (parseCommand(IsData, ModuleName, ModuleOffset)) {
|
|
std::string Result =
|
|
IsData ? Symbolizer.symbolizeData(ModuleName, ModuleOffset)
|
|
: Symbolizer.symbolizeCode(ModuleName, ModuleOffset);
|
|
outs() << Result << "\n";
|
|
outs().flush();
|
|
}
|
|
return 0;
|
|
}
|