void SimplifyCFGPass::run_pass(DexStoresVector& stores,
ConfigFiles& /* unused */,
PassManager& mgr) {
const auto& scope = build_class_scope(stores);
auto total_insns_removed =
walk::parallel::reduce_methods<int64_t, Scope>(
scope,
[](DexMethod* m) -> int64_t {
auto code = m->get_code();
if (code == nullptr) {
return 0;
}
int64_t before_insns = code->count_opcodes();
// build and linearize the CFG
code->build_cfg(/* editable */ true);
code->clear_cfg();
int64_t after_insns = code->count_opcodes();
return before_insns - after_insns;
},
[](int64_t a, int64_t b) { return a + b; });
mgr.set_metric("insns_removed", total_insns_removed);
}
void mrbig(void)
{
char *p;
time_t t, lastrun;
int sleeptime, i;
char hostname[256];
DWORD hostsize;
/*
* install exception logging/stacktrace handler.
* We need to resolve the symbol at run time because windows 2000
* does not have it.
*/
do {
HMODULE dll;
PVOID (*ptr) (ULONG First,PVECTORED_EXCEPTION_HANDLER Handler) = NULL;
dll = LoadLibraryEx("kernel32.dll", NULL, 0);
if (dll == NULL)
break;
ptr = (typeof(ptr))GetProcAddress(dll, "AddVectoredExceptionHandler");
if (ptr == NULL)
break;
ptr(1, VectoredExceptionHandler);
mrlog("VectoredExceptionHandler handler has been installed");
} while(0);
if (debug) {
mrlog("mrbig()");
}
for (i = 0; _environ[i]; i++) {
startup_log("%s", _environ[i]);
}
for (;;) {
if (debug) mrlog("main loop");
read_cfg("mrbig", cfgfile);
readcfg();
t = time(NULL);
strlcpy(now, ctime(&t), sizeof now);
p = strchr(now, '\n');
if (p) *p = '\0';
hostsize = sizeof hostname;
if (GetComputerName(hostname, &hostsize)) {
for (i = 0; hostname[i]; i++)
hostname[i] = tolower(hostname[i]);
snprcat(now, sizeof now, " [%s]", hostname);
}
cpu();
check_chunks("after cpu test");
disk();
check_chunks("after disk test");
memory();
check_chunks("after memory test");
msgs();
check_chunks("after msgs test");
procs();
check_chunks("after procs test");
svcs();
check_chunks("after svcs test");
wmi();
check_chunks("after wmi test");
if (pickupdir[0]) ext_tests();
lastrun = t;
t = time(NULL);
if (t < lastrun) {
mrlog("mainloop: timewarp detected, sleep for %d",
mrloop);
sleeptime = mrloop;
} else {
sleeptime = mrloop-(t-lastrun);
}
if (sleeptime < SLEEP_MIN) sleeptime = SLEEP_MIN;
if (debug) mrlog("started at %d, finished at %d, sleep for %d",
(int)lastrun, (int)t, sleeptime);
clear_cfg();
if (debug) {
dump_chunks();
check_chunks("after main loop");
}
Sleep(sleeptime*1000);
}
}
void IRCode::build_cfg(bool editable) {
clear_cfg();
m_cfg = std::make_unique<cfg::ControlFlowGraph>(
m_ir_list, m_registers_size, editable);
}