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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
char* progname;
void usage()
{
fprintf(
stderr,
"Usage: %s [-v] -c CPU -e executable -t tracefile [-E logfile]\n",
progname
);
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( void )
{
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;
const char *cpuname = "";
const char *executable = "";
const char *tracefile = "";
const char *logname = "/tmp/qemu.log";
Coverage::ExecutableInfo* executableInfo;
rld::process::tempfile objdumpFile( ".dmp" );
rld::process::tempfile err( ".err" );
Coverage::DesiredSymbols symbolsToAnalyze;
bool verbose = false;
std::string dynamicLibrary;
int ec = 0;
std::shared_ptr<Target::TargetBase> targetInfo;
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 ) {
fprintf( stderr, "cpuname not specified\n" );
usage();
}
if ( !executable ) {
fprintf( stderr, "executable not specified\n" );
usage();
}
if ( !tracefile ) {
fprintf( stderr, "output trace file not specified\n" );
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,
dynamicLibrary,
false,
symbolsToAnalyze
);
else {
try
{
executableInfo = new Coverage::ExecutableInfo(
executable,
"",
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;
}
}
objdumpProcessor.loadAddressTable( executableInfo, objdumpFile, err );
log.processFile( logname, objdumpProcessor );
trace.writeFile( tracefile, &log, verbose );
return ec;
}
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