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/*! @file TraceReaderLogQEMU.cc
* @brief TraceReaderLogQEMU Implementation
*
* This file contains the implementation of the functions supporting
* reading the QEMU coverage data files.
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <string.h>
#include <getopt.h>
#include <signal.h>
#include <unistd.h>
#include <rld.h>
#include <rld-process.h>
#include "qemu-log.h"
#include "TraceReaderLogQEMU.h"
#include "TraceWriterQEMU.h"
#include "TraceList.h"
#include "ObjdumpProcessor.h"
#include "TargetFactory.h"
#if defined(_WIN32) || defined(__CYGWIN__)
#define kill(p,s) raise(s)
#endif
std::string progname;
void usage()
{
std::cerr << "Usage: "
<< progname
<< " [-v] -c CPU -e executable -t tracefile [-E logfile]"
<< std::endl;
exit( 1 );
}
static void fatal_signal( int signum )
{
signal( signum, SIG_DFL );
rld::process::temporaries_clean_up();
/*
* Get the same signal again, this time not handled, so its normal effect
* occurs.
*/
kill( getpid(), signum );
}
static void setup_signals()
{
if ( signal (SIGINT, SIG_IGN) != SIG_IGN ) {
signal( SIGINT, fatal_signal );
}
#ifdef SIGHUP
if ( signal( SIGHUP, SIG_IGN ) != SIG_IGN ) {
signal( SIGHUP, fatal_signal );
}
#endif
if ( signal( SIGTERM, SIG_IGN ) != SIG_IGN ) {
signal( SIGTERM, fatal_signal );
}
#ifdef SIGPIPE
if ( signal( SIGPIPE, SIG_IGN ) != SIG_IGN ) {
signal( SIGPIPE, fatal_signal );
}
#endif
#ifdef SIGCHLD
signal( SIGCHLD, SIG_DFL );
#endif
}
int main(
int argc,
char** argv
)
{
int opt;
Trace::TraceReaderLogQEMU log;
Trace::TraceWriterQEMU trace;
std::string cpuname;
std::string executable;
std::string tracefile;
std::string logname = "/tmp/qemu.log";
Coverage::ExecutableInfo* executableInfo;
Coverage::DesiredSymbols symbolsToAnalyze;
bool verbose = false;
std::string dynamicLibrary;
int ec = 0;
std::shared_ptr<Target::TargetBase> targetInfo;
rld::process::tempfile *objdumpFile;
rld::process::tempfile *err;
try
{
objdumpFile = new rld::process::tempfile( ".dmp" );
}
catch ( rld::error re )
{
std::cerr << "Failed to make .dmp tempfile " << std::endl;
ec = 10;
return ec;
}
try
{
err = new rld::process::tempfile( ".err" );
}
catch ( rld::error re )
{
std::cerr << "Failed to make .err tempfile " << std::endl;
ec = 10;
return ec;
}
setup_signals();
//
// Process command line options.
//
progname = argv[0];
while ( (opt = getopt( argc, argv, "c:e:l:L:t:v" ) ) != -1 ) {
switch ( opt ) {
case 'c': cpuname = optarg; break;
case 'e': executable = optarg; break;
case 'l': logname = optarg; break;
case 'L': dynamicLibrary = optarg; break;
case 't': tracefile = optarg; break;
case 'v': verbose = true; break;
default: usage();
}
}
// Make sure we have all the required parameters
if ( cpuname.empty() ) {
std::cerr << "cpuname not specified" << std::endl;
usage();
}
if ( executable.empty() ) {
std::cerr << "executable not specified" << std::endl;
usage();
}
if ( tracefile.empty() ) {
std::cerr << "output trace file not specified" << std::endl;
usage();
}
// Create toolnames.
try
{
targetInfo.reset( Target::TargetFactory( cpuname ) );
}
catch ( rld::error re )
{
std::cerr << "error: "
<< re.where << ": " << re.what
<< std::endl;
ec = 10;
return ec;
}
Coverage::ObjdumpProcessor objdumpProcessor( symbolsToAnalyze, targetInfo );
if ( !dynamicLibrary.empty() ) {
executableInfo = new Coverage::ExecutableInfo(
executable.c_str(),
dynamicLibrary,
false,
symbolsToAnalyze
);
} else {
try
{
executableInfo = new Coverage::ExecutableInfo(
executable.c_str(),
"",
false,
symbolsToAnalyze
);
}
catch ( rld::error re )
{
std::cerr << "error: "
<< re.where << ": " << re.what
<< std::endl;
ec = 10;
}
}
// If a dynamic library was specified, determine the load address.
if ( !dynamicLibrary.empty() ) {
try
{
executableInfo->setLoadAddress(
objdumpProcessor.determineLoadAddress( executableInfo )
);
}
catch ( rld::error re )
{
std::cerr << "error: "
<< re.where << ": " << re.what
<< std::endl;
ec = 10;
return ec;
}
}
try
{
objdumpProcessor.loadAddressTable( executableInfo, *objdumpFile, *err );
log.processFile( logname.c_str(), objdumpProcessor );
trace.writeFile( tracefile.c_str(), &log, verbose );
}
catch ( rld::error re )
{
std::cerr << "error: "
<< re.where << ": " << re.what
<< std::endl;
ec = 10;
}
return ec;
}
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