test_results_t test4_1_Mutator::mutatorTest() {
int n = 0;
const char *child_argv[MAX_TEST+7];
dprintf("in mutatorTest1\n");
child_argv[n++] = pathname;
if (debugPrint) child_argv[n++] = const_cast<char*>("-verbose");
child_argv[n++] = const_cast<char*>("-run");
child_argv[n++] = const_cast<char*>("test4_1");
child_argv[n] = NULL;
// Start the mutatee
logerror("Starting \"%s\"\n", pathname);
appProc = bpatch->processCreate(pathname, child_argv,NULL);
dprintf("Test 1: using thread %p\n", appProc);
if (appProc == NULL) {
logerror("Unable to run test program.\n");
return FAILED;
}
contAndWaitForAllProcs(bpatch, appProc, myprocs, &threadCount);
if ( !passedTest )
{
logerror("**Failed** test #1 (exit callback)\n");
logerror(" exit callback not executed\n");
return FAILED;
}
return PASSED;
}
int main (int argc, const char* argv[]) {
BPatch bpatch;
// argv[2] is muttee's file name, will be muttee's argv[0]
BPatch_process *proc = bpatch.processCreate(argv[2], argv + 2);
// Options to tune performance
char *s;
if ((s = getenv("SET_TRAMP_RECURSIVE")) && (strcmp(s, "true") == 0))
bpatch.setTrampRecursive(true);
if ((s = getenv("SET_SAVE_FPR")) && (strcmp(s, "false") == 0))
bpatch.setSaveFPR(false);
BPatch_object *ipa = proc->loadLibrary(argv[1]);
BPatch_image *image = proc->getImage();
std::vector<BPatch_function *> tracepoints, probes;
image->findFunction("do_stuff", tracepoints);
BPatch_function *tracepoint = tracepoints[0];
image->findFunction("tpbench_no_arg", probes);
BPatch_function *probe = probes[0];
std::vector<BPatch_snippet*> args;
BPatch_funcCallExpr call_probe(*probe, args);
proc->insertSnippet(call_probe, (tracepoint->findPoint(BPatch_exit))[0]);
proc->detach(true);
return 0;
}
int main()
{
BPatch bpatch;
BPatch_process* appProc = bpatch.processCreate("/bin/ls", NULL);
BPatch_image* img = NULL;
img = appProc->getImage();
vector<BPatch_module*> *mdl = img->getModules();
vector<BPatch_module*>::iterator moduleIter = mdl->begin();
void* addr = (*moduleIter)->getBaseAddr();
printf("0x%x\n",addr);
return 0;
}
int main(int argc, char**argv)
{
if(argc != 3) {
printf("usage: %s orig_prog new_prog\n", argv[0]);
return 1;
}
char* file = argv[1];
char* newFile = argv[2];
bool ret;
eztrace_dyninst_register ("compute_", 1, 2);
eztrace_dyninst_register ("dist_", 3, 4);
eztrace_dyninst_register ("initialize_", 5, 6);
eztrace_dyninst_register ("timestamp_", 7, 8);
eztrace_dyninst_register ("update_", 9, 10);
if(!eztrace_dyninst_nb_function_to_register()) {
printf("0 functions instrumented\n");
return 1;
}
#ifdef CREATE_BINARY
//Create the BPatch_addressSpace and BPatch_binaryEdit
appBin = bpatch.openBinary(file, true);
if(!appBin) {
fprintf(stderr, "Cannot open %s\n", file);
return -1;
}
app = static_cast<BPatch_addressSpace *>(appBin);
if(! app->loadLibrary(LIB_EZTRACE_SO)) {
printf("Cannot load %s\n", LIB_EZTRACE_SO);
return 1;
}
#else
// run the program
BPatch_process *appProc = bpatch.processCreate(file, NULL);
if(!appProc) {
printf("Cannot load program %s\n", file);
}
if(! appProc->loadLibrary(LIB_EZTRACE_SO, true)) {
printf("Cannot load %s\n", LIB_EZTRACE_SO);
return 1;
}
app = static_cast<BPatch_addressSpace *>(appProc);
#endif
// Instrument all the specified functions
int nb_inst = eztrace_dyninst_instrument(app);
printf("%d functions instrumented\n", nb_inst);
if(! nb_inst)
return 1;
#ifdef CREATE_BINARY
if (appBin != NULL) {
//Write a new instrumented executable
appBin->writeFile(newFile);
} else {
fprintf(stderr, "cannot write %s\n", newFile);
return -1;
}
#else
appProc->continueExecution();
while(!appProc->isTerminated()) {
bpatch.waitForStatusChange();
}
#endif
return 0;
}
int main(int argc, char *argv[], char* envp[])
{
if (argc < 2) {
fprintf(stderr, "Usage: %s prog_filename prog_aruments\n", argv[0]);
return 3;
}
#if 0
if (strcmp(argv[1], "prog") != 0 && strcmp(argv[1], "all"))
{
fprintf(stderr, "Options for patch selection are 'progonly' or 'all'\n");
return 3;
}
#endif
int patchall = 0; //strcmp(argv[1], "all") != 0;
// Create process
BPatch_process *appProc = bpatch.processCreate(argv[1], (const char**) &(argv[1]));
// Load pthread into the process...
appProc->loadLibrary("libpthread.so.0");
// Get the process image
BPatch_image *appImage = appProc->getImage();
// Find all the instrumentable procedures
BPatch_Vector<BPatch_function*> *functions = appImage->getProcedures();
/*************************************************************************
* General function search *
*************************************************************************/
// Find the printf function
BPatch_Vector<BPatch_function*> printfFuncs;
appImage->findFunction("printf", printfFuncs);
if (printfFuncs.size() == 0)
appImage->findFunction("_printf", printfFuncs);
if (printfFuncs.size() == 0)
appImage->findFunction("__printf", printfFuncs);
if(printfFuncs.size() == 0)
{
fprintf(stderr, "Could not find printf() function");
return 2;
}
// Find the exit function
BPatch_Vector<BPatch_function*> exitFuncs;
appImage->findFunction("exit", exitFuncs);
if (exitFuncs.size() == 0)
appImage->findFunction("_exit", exitFuncs);
if (exitFuncs.size() == 0)
appImage->findFunction("__exit", exitFuncs);
if(exitFuncs.size() == 0)
{
fprintf(stderr, "Could not find exit() function");
return 2;
}
// Find the perror function
BPatch_Vector<BPatch_function*> perrorFuncs;
appImage->findFunction("perror", perrorFuncs);
if (perrorFuncs.size() == 0)
appImage->findFunction("_perror", perrorFuncs);
if (perrorFuncs.size() == 0)
appImage->findFunction("__perror", perrorFuncs);
if(perrorFuncs.size() == 0)
{
fprintf(stderr, "Could not find perror() function");
return 2;
}
BPatch_Vector<BPatch_snippet*> mainEntryBlock;
/************************************************************************
* Error exit call *
************************************************************************/
BPatch_Vector<BPatch_snippet*> exitArgs;
BPatch_constExpr exitCode(-2);
exitArgs.push_back(&exitCode);
// Open call
BPatch_funcCallExpr exitOnErrorCall(*exitFuncs[0], exitArgs);
/************************************************************************
* Open imitate device patch *
* **********************************************************************/
// Find main()
BPatch_Vector<BPatch_function*> mainFunctions;
appImage->findFunction("main", mainFunctions);
if (mainFunctions.size() == 0)
appImage->findFunction("_main", mainFunctions);
if (mainFunctions.size() == 0)
appImage->findFunction("__main", mainFunctions);
if(mainFunctions.size() == 0)
{
fprintf(stderr, "Could not find main() function");
return 2;
}
// find open()
BPatch_Vector<BPatch_function*> openFunctions;
appImage->findFunction("open64", openFunctions);
if (openFunctions.size() == 0)
appImage->findFunction("open", openFunctions);
if (openFunctions.size() == 0)
appImage->findFunction("_open", openFunctions);
if (openFunctions.size() == 0)
appImage->findFunction("__open", openFunctions);
if(openFunctions.size() == 0)
{
fprintf(stderr, "Could not find open() function");
return 2;
}
// Get main() entry point
BPatch_Vector<BPatch_point*> *mainPoints = mainFunctions[0]->findPoint(BPatch_entry);
// Open call arguments
BPatch_Vector<BPatch_snippet*> openArgs;
BPatch_constExpr fileName("/dev/imitate0");
BPatch_constExpr fileFlags(O_RDWR);
openArgs.push_back(&fileName);
openArgs.push_back(&fileFlags);
// Open call
BPatch_funcCallExpr openDevCall(*openFunctions[0], openArgs);
// Allocate file descriptor
BPatch_variableExpr *devFd = appProc->malloc(*appImage->findType("int"));
// Assign fd with result of open call
BPatch_arithExpr openDevice(BPatch_assign, *devFd, openDevCall);
// defFd check
BPatch_boolExpr devFdCheck(BPatch_lt, *devFd, BPatch_constExpr(0));
// perror message
BPatch_Vector<BPatch_snippet*> devFdErrorArgs;
BPatch_constExpr devFdErrorMsg("Opening imitate kernel device");
devFdErrorArgs.push_back(&devFdErrorMsg);
BPatch_funcCallExpr devFdError(*perrorFuncs[0], devFdErrorArgs);
BPatch_Vector<BPatch_snippet*> openErrorBlock;
openErrorBlock.push_back(&devFdError);
openErrorBlock.push_back(&exitOnErrorCall);
// if (devFd < 0) { perror(...) }
BPatch_ifExpr devFdBlock(devFdCheck, BPatch_sequence(openErrorBlock));
mainEntryBlock.push_back(&openDevice);
mainEntryBlock.push_back(&devFdBlock);
/*************************************************************************
* Send ioctl IMITATE_APP_RECORD to module *
*************************************************************************/
// find ioctl()
BPatch_Vector<BPatch_function*> ioctlFunctions;
appImage->findFunction("ioctl", ioctlFunctions);
if (ioctlFunctions.size() == 0)
appImage->findFunction("_ioctl", ioctlFunctions);
if (ioctlFunctions.size() == 0)
appImage->findFunction("__ioctl", ioctlFunctions);
if(ioctlFunctions.size() == 0)
{
fprintf(stderr, "Could not find ioctl() function");
return 2;
}
// ioctl() arguments
BPatch_Vector<BPatch_snippet*> ioctlArgs;
BPatch_constExpr operation(IMITATE_APP_RECORD);
fprintf(stderr, "PPID: %d\n", getppid());
BPatch_constExpr monitorPid(getppid());
ioctlArgs.push_back(devFd);
ioctlArgs.push_back(&operation);
ioctlArgs.push_back(&monitorPid);
// ioctl() call
BPatch_funcCallExpr ioctlCall(*ioctlFunctions[0], ioctlArgs);
// ioctl() result check
BPatch_boolExpr ioctlCheck(BPatch_lt, ioctlCall, BPatch_constExpr(0));
// perror message
BPatch_Vector<BPatch_snippet*> ioctlErrorArgs;
BPatch_constExpr ioctlErrorMsg("Notifying imitate kernel driver of RECORD");
ioctlErrorArgs.push_back(&ioctlErrorMsg);
BPatch_funcCallExpr ioctlError(*perrorFuncs[0], ioctlErrorArgs);
BPatch_Vector<BPatch_snippet*> ioctlErrorBlock;
ioctlErrorBlock.push_back(&ioctlError);
ioctlErrorBlock.push_back(&exitOnErrorCall);
// if (ioctl(...) < 0) { perror(...) }
BPatch_ifExpr ioctlBlock(ioctlCheck, BPatch_sequence(ioctlErrorBlock));
// Add ioctl check to entry block
mainEntryBlock.push_back(&ioctlBlock);
/*************************************************************************
* Counter mmap() *
*************************************************************************/
// Find the mmap function
BPatch_Vector<BPatch_function*> mmapFuncs;
appImage->findFunction("mmap", mmapFuncs);
if (mmapFuncs.size() == 0)
appImage->findFunction("_mmap", mmapFuncs);
if (mmapFuncs.size() == 0)
appImage->findFunction("__mmap", mmapFuncs);
if(mmapFuncs.size() == 0)
{
fprintf(stderr, "Could not find mmap() function");
return 2;
}
// Allocate counter
BPatch_variableExpr *counterAddr = appProc->malloc(sizeof(sched_counter_t*));
sched_counter_t counterVal = 0;
counterAddr->writeValue(&counterVal, sizeof(sched_counter_t*), false);
// Notify kernel of address
BPatch_Vector<BPatch_snippet*> mmapArgs;
BPatch_constExpr mmapStart(0);
BPatch_constExpr mmapLength(sizeof(sched_counter_t));
BPatch_constExpr mmapProt(PROT_READ | PROT_WRITE);
BPatch_constExpr mmapFlags(MAP_SHARED);
BPatch_constExpr mmapOffset(0);
mmapArgs.push_back(&mmapStart);
mmapArgs.push_back(&mmapLength);
mmapArgs.push_back(&mmapProt);
mmapArgs.push_back(&mmapFlags);
mmapArgs.push_back(devFd);
mmapArgs.push_back(&mmapOffset);
// mmap() call
BPatch_funcCallExpr mmapCall(*mmapFuncs[0], mmapArgs);
// assign result to counterAddr
BPatch_arithExpr mmapAssign(BPatch_assign, *counterAddr, mmapCall);
// Add to entry block
mainEntryBlock.push_back(&mmapAssign);
// mmap() result check
BPatch_boolExpr mmapCheck(BPatch_eq, *counterAddr, BPatch_constExpr(MAP_FAILED));
// perror message
BPatch_Vector<BPatch_snippet*> mmapErrorArgs;
BPatch_constExpr mmapErrorMsg("Memory mapping schedule (back edge) counter");
mmapErrorArgs.push_back(&mmapErrorMsg);
BPatch_funcCallExpr mmapError(*perrorFuncs[0], mmapErrorArgs);
BPatch_Vector<BPatch_snippet*> mmapErrorBlock;
mmapErrorBlock.push_back(&mmapError);
mmapErrorBlock.push_back(&exitOnErrorCall);
// if (mmap(...) == MAP_FAILED) { perror(...) }
BPatch_ifExpr mmapBlock(mmapCheck, BPatch_sequence(mmapErrorBlock));
mainEntryBlock.push_back(&mmapBlock);
// Patch main entry
BPatch_sequence mainEntrySeq(mainEntryBlock);
appProc->insertSnippet(mainEntrySeq, *mainPoints);
/*************************************************************************
* Back-edge patching *
*************************************************************************/
#if 0
printf("intCounter address: %x\n PID: %d\n", intCounter->getBaseAddr(), appProc->getPid());
fflush(stdout);
#endif
// Find the mutex lock/unlock functions
BPatch_Vector<BPatch_function*> mutexLockFunctions;
appImage->findFunction("pthread_mutex_lock", mutexLockFunctions);
if (mutexLockFunctions.size() == 0)
appImage->findFunction("_pthread_mutex_lock", mutexLockFunctions);
if (mutexLockFunctions.size() == 0)
appImage->findFunction("__pthread_mutex_lock", mutexLockFunctions);
if(mutexLockFunctions.size() == 0)
{
fprintf(stderr, "Could not find pthread_mutex_lock() function");
return 2;
}
BPatch_Vector<BPatch_function*> mutexUnlockFunctions;
appImage->findFunction("pthread_mutex_unlock", mutexUnlockFunctions);
if (mutexUnlockFunctions.size() == 0)
appImage->findFunction("_pthread_mutex_unlock", mutexUnlockFunctions);
if (mutexUnlockFunctions.size() == 0)
appImage->findFunction("__pthread_mutex_unlock", mutexUnlockFunctions);
if(mutexUnlockFunctions.size() == 0)
{
fprintf(stderr, "Could not find pthread_mutex_unlock() function");
return 2;
}
// Allocate a mutex
pthread_mutex_t mutexValue = PTHREAD_MUTEX_INITIALIZER;
BPatch_variableExpr *mutex = appProc->malloc(sizeof(pthread_mutex_t));
mutex->writeValue(&mutexValue, sizeof(pthread_mutex_t), false);
// Build mutex lock call
BPatch_Vector<BPatch_snippet*> mutexArgs;
BPatch_constExpr mutexAddress(mutex->getBaseAddr());
mutexArgs.push_back(&mutexAddress);
BPatch_funcCallExpr mutexLockCall(*mutexLockFunctions[0], mutexArgs);
BPatch_funcCallExpr mutexUnlockCall(*mutexUnlockFunctions[0], mutexArgs);
BPatch_arithExpr derefCounter(BPatch_deref, *counterAddr);
// Create 'increment counter' snippet
BPatch_arithExpr addOneToCounter(BPatch_assign, derefCounter,
BPatch_arithExpr(BPatch_plus, derefCounter, BPatch_constExpr(1)));
BPatch_Vector<BPatch_snippet*> snippet;
snippet.push_back(&mutexLockCall);
snippet.push_back(&addOneToCounter);
snippet.push_back(&mutexUnlockCall);
BPatch_sequence addOneAtomic(snippet);
char *name = (char*) malloc(sizeof(char)*200);
char *modname = (char*) malloc(sizeof(char)*200);
if (! (name && modname))
{
fprintf(stderr, "%s %d: Out of memory!", __FILE__, __LINE__);
return 1;
}
appProc->beginInsertionSet();
// Iterate through the procedures
for (int i = 0; i < functions->size(); i++)
{
(*functions)[i]->getName(name, 199);
(*functions)[i]->getModuleName(modname, 199);
if ((patchall && strcmp(modname, "DEFAULT_MODULE") != 0) ||
strncmp(name, "pthread", 7) == 0 ||
strncmp(modname, "libpthread", 10) == 0 ||
strncmp(modname, "libdyninst", 10) == 0 ||
(name[0] == '_' && name[1] != '_' && strncmp(modname, "libc", 4) == 0))
continue;
fprintf(stderr, "patcher: Patching function: '%s' (%s)", name, modname);
// Patch back-edge for call
if (strcmp(name, "main") != 0)
appProc->insertSnippet(addOneAtomic, *((*functions)[i]->findPoint(BPatch_entry)));
// Get the control flow graph for the procedure
BPatch_flowGraph *graph = (*functions)[i]->getCFG();
// Find the loops
BPatch_Vector<BPatch_basicBlockLoop*> *loops = new BPatch_Vector<BPatch_basicBlockLoop*>();
graph->getLoops(*loops);
// Patch the loop back-edges
for(int j = 0; j < loops->size(); j++)
{
appProc->insertSnippet(addOneAtomic, *((*loops)[j]->getBackEdge()->getPoint()));
fprintf(stderr, ".", (int) (*loops)[j]->getBackEdge()->getPoint()->getAddress());
}
fprintf(stderr, "\n");
// Free the loops found
delete(loops);
}
fprintf(stderr, "Finalising patches...");
fflush(stderr);
appProc->finalizeInsertionSet(false);
fprintf(stderr, "Done.\n----------------------------------------\n");
// Clear up memory used to store the name
free(name);
free(modname);
#if 0
/*************************************************************************
* Exit point counter print patch *
*************************************************************************/
// Patch exit() function to print out no of back branches at the end
// Get exit() exit point
BPatch_Vector<BPatch_point*> *exitPoints = exitFuncs[0]->findPoint(BPatch_entry);
// Build printf() call:
// printf("Total Total Back-branches: %d\n", counter);
// Build arguments to printf()
BPatch_Vector<BPatch_snippet*> printfArgs;
BPatch_constExpr formatString("Total Back-branches: %d\n");
printfArgs.push_back(&formatString);
printfArgs.push_back(&derefCounter);
// Build call to printf()
BPatch_funcCallExpr printfCall(*printfFuncs[0], printfArgs);
// Patch into exit()
appProc->insertSnippet(printfCall, *exitPoints);
#endif
// Continue mutatee...
appProc->continueExecution();
// Wait for mutatee to finish
while (!appProc->isTerminated())
{
bpatch.waitForStatusChange();
}
fprintf(stderr, "----------------------------------------\n");
fprintf(stderr, "Done.\n");
return 0;
}
// static int mutatorTest(char *pathname, BPatch *bpatch)
test_results_t test1_41_Mutator::executeTest() {
unsigned int n=0;
const char *child_argv[5];
child_argv[n++] = pathname;
if (debugPrint) child_argv[n++] = const_cast<char*>("-verbose");
child_argv[n++] = const_cast<char*>("-run");
child_argv[n++] = const_cast<char*>("test1_41"); // run test41 in mutatee
child_argv[n++] = NULL;
int counts[iterations];
// Run the mutatee twice, querying line info each time & store the info
for (n = 0; n < iterations; n++) {
dprintf("Starting \"%s\"\n", pathname);
BPatch_process *proc = bpatch->processCreate(pathname, child_argv,
NULL);
if (!proc) {
logerror("*ERROR*: unable to create handle for executable\n", n);
logerror("**Failed** test #41 (repeated line information)\n");
return FAILED;
}
dprintf("Mutatee started, pid=%d\n", n, proc->getPid());
BPatch_image *image = proc->getImage();
if (!image) {
logerror("*ERROR*: unable to get image from thread\n");
logerror("**Failed** test #41 (repeated line information)\n");
return FAILED;
}
if (isMutateeFortran(image)) {
// This shouldn't happen..
proc->terminateExecution();
logerror("Skipped test #41 (repeated line information)\n");
return SKIPPED;
}
BPatch_module *module = image->findModule("test1_41_mutatee.c", true);
if (!module) {
module = image->findModule("solo_mutatee_boilerplate.c", true);
if (true) {
logerror("*ERROR*: unable to get module from image\n");
logerror("Looking for \"test1_41_solo_me.c\" or \"solo_mutatee_boilerplate.c\". Available modules:\n");
BPatch_Vector<BPatch_module *> *mods = image->getModules();
char buffer[512];
for (unsigned i = 0; i < mods->size(); i++) {
BPatch_module *mod = (*mods)[i];
char name[512];
mod->getName(name, 512);
sprintf(buffer, "\t%s\n",
name);
logerror(buffer);
}
}
}
if (!module) {
fprintf(stderr, "%s[%d]: could not find module solo_mutatee_boilerplate.c\n", FILE__, __LINE__);
// First try again for 'test1_41_solo_me.c'
module = image->findModule("test1_41_solo_me.c", true);
if (!module) {
logerror("*ERROR*: unable to get module from image\n");
logerror("Looking for \"test1_41_solo_me.c\" or \"solo_mutatee_boilerplate.c\". Available modules:\n");
BPatch_Vector<BPatch_module *> *mods = image->getModules();
char buffer[512];
for (unsigned i = 0; i < mods->size(); i++) {
BPatch_module *mod = (*mods)[i];
char name[512];
mod->getName(name, 512);
sprintf(buffer, "\t%s\n",
name);
logerror(buffer);
}
logerror("**Failed** test #41 (repeated line information)\n");
return FAILED;
}
}
char buffer[16384]; // FIXME ugly magic number; No module name should be that long..
module->getName(buffer, sizeof(buffer));
BPatch_Vector<BPatch_statement> statements;
bool res = module->getStatements(statements);
if (!res) {
fprintf(stderr, "%s[%d]: getStatements()\n", __FILE__, __LINE__);
return FAILED;
}
counts[n] = statements.size();
dprintf("Trial %d: found %d statements\n", n, statements.size());
proc->terminateExecution();
}
// Make sure we got the same info each time we ran the mutatee
int last_count = -1;
for (int i = 0; i < iterations; i++) {
if ((last_count >= 0) && (last_count != counts[i])) {
logerror("*ERROR*: statement counts didn't match: %d vs. %d\n", last_count, counts[i]);
logerror("**Failed** test #41 (repeated line information)\n");
return FAILED;
}
last_count = counts[i];
}
logerror("Passed test #41 (repeated line information)\n");
return PASSED;
}