void doStuff(InstInfo* FI, InstInfo* DI, InstInfo* XI, InstInfo* MI, InstInfo* WI) {
//fetch(FI);
//printf("%s\n", FI->string);
decode(DI);
execute(XI);
memory(MI);
writeback(WI);
setPCWithInfo(MI);
}
/*
* trap and syscall both need the following work done before returning
* to user mode.
*/
static inline void
userret(struct lwp *l, struct frame *fp, u_quad_t oticks, u_int faultaddr,
int fromtrap)
{
struct proc *p = l->l_proc;
#ifdef M68040
int sig;
int beenhere = 0;
again:
#endif
/* Invoke MI userret code */
mi_userret(l);
/*
* If profiling, charge system time to the trapped pc.
*/
if (p->p_stflag & PST_PROFIL) {
extern int psratio;
addupc_task(l, fp->f_pc,
(int)(p->p_sticks - oticks) * psratio);
}
#ifdef M68040
/*
* Deal with user mode writebacks (from trap, or from sigreturn).
* If any writeback fails, go back and attempt signal delivery.
* unless we have already been here and attempted the writeback
* (e.g. bad address with user ignoring SIGSEGV). In that case
* we just return to the user without successfully completing
* the writebacks. Maybe we should just drop the sucker?
*/
if (cputype == CPU_68040 && fp->f_format == FMT7) {
if (beenhere) {
#ifdef DEBUG
if (mmudebug & MDB_WBFAILED)
printf(fromtrap ?
"pid %d(%s): writeback aborted, pc=%x, fa=%x\n" :
"pid %d(%s): writeback aborted in sigreturn, pc=%x\n",
p->p_pid, p->p_comm, fp->f_pc, faultaddr);
#endif
} else if ((sig = writeback(fp, fromtrap))) {
ksiginfo_t ksi;
beenhere = 1;
oticks = p->p_sticks;
(void)memset(&ksi, 0, sizeof(ksi));
ksi.ksi_signo = sig;
ksi.ksi_addr = (void *)faultaddr;
ksi.ksi_code = BUS_OBJERR;
trapsignal(l, &ksi);
goto again;
}
}
#endif
}
std::set<std::string> filelist::enumerate()
{
auto contents = readfile();
check_stale(contents);
writeback(contents);
std::set<std::string> ret;
for(auto i : contents)
if(i.second != 0)
ret.insert(i.first);
return ret;
}
/* start simulation, program loaded, processor precise state initialized */
void sim_main(void)
{
cpen411_init();
do {
writeback();
memory();
execute();
decode();
fetch();
sim_cycle++;
} while (!max_insts || sim_num_insn < max_insts);
}
void doStage(int isFirst, int *stall, int * cycles, int * counter)
{
if(pipelineInsts[4]->inst!=0){
if(debug)printf("DEBUG: writing back\n");
writeback(pipelineInsts[4]);
}
if(pipelineInsts[3]->inst!=0){
if(debug)printf("DEBUG: memorying\n");
memory(pipelineInsts[3]);
}
// if stall is being set, no need to call any of fowllowing functions
if(!*stall){
if(debug)printf("DEBUG: no stall...........\n");
if(pipelineInsts[2]->inst!=0){
if(debug)printf("DEBUG: executing\n");
forwardData(pipelineInsts); // forward data before execute
if(debug)printf("DEBUG: instruction is about to get executed: %s\n", pipelineInsts[2]->string);
execute(pipelineInsts[2]);
}
if(pipelineInsts[1]->inst!=0){
if(debug)printf("DEBUG: decoding\n");
decode(pipelineInsts[1]);
setDependency(pipelineInsts, stall); // set dependencies after decode
// if cur inst is bge
if(pipelineInsts[1]->signals.btype != 0){
if(debug)printf("DEBUG: calling doBranching\n");
doBranching(pipelineInsts, stall, cycles, counter);
}
}
}
if(pipelineInsts[0]->inst!=0 || isFirst){
if(debug)printf("DEBUG: fetching\n");
fetch(pipelineInsts[0]);
if(*stall){ // when stall is being set, needs to defetch one instruction
/*if(pipelineInsts[1]->signals.btype == 2){
if(pipelineInsts[2]->aluout >= 0)
pc = pc + pipelineInsts[1]->imm + 1;
}*/
defetch(pipelineInsts[0]);
}
}
}
int
main(int argc, char *argv[]) {
state_t *state;
int data_count;
int commit_ret, dispatch_ret;
int num_insn, i;
int commit_status, areBuffersFull = 0;
parse_args(argc, argv);
state = state_create(&data_count, bin_file, fu_file, wbpi, wbpf);
if (state == NULL) {
fclose(bin_file);
fclose(fu_file);
return -1;
}
fclose(bin_file);
fclose(fu_file);
/* main sim loop */
for (i = 0, num_insn = 0; TRUE; i++) {
printf("\n\n*** CYCLE %d\n", i);
print_state(state, data_count);
commit_status = commit(state);
if(commit_status != 0) num_insn++;
if(commit_status == -1) break;
writeback(state);
execute(state);
memory_disambiguation(state);
issue(state);
if (!(state->fetch_lock)) {
areBuffersFull = dispatch(state);
if(areBuffersFull != -1) fetch(state);
}
}
printf("SIMULATION COMPLETE!\n");
printf("COMMITTED %d INSTRUCTIONS IN %d CYCLES\n", num_insn, i);
printf("CPI: %.2f\n", (float)i / (float)num_insn);
return 0;
}
void GPR_Machine::processInstruction() {
multicycle = true;
//determine type of instruction
instr = m_current_instruction;
//backups
latch_fetch_decode_old = latch_fetch_decode_new;
latch_fetch_decode_new.current_instruction = instr; //set instruction
latch_decode_execute_old = latch_decode_execute_new;
latch_decode_execute_new = decode(); //decode
latch_execute_memory_old = latch_execute_memory_new;
latch_execute_memory_new = executeInstruction(); //execute
latch_memory_writeback_old = latch_memory_writeback_new;
latch_memory_writeback_new = pipelineMemory(); //memory
//writeback
int result = writeback();
}
int main(int argc, char** argv) {
DataStoreNodeTemplate tlb_stat("tlb_stat"); {
tlb_stat.summable = 1;
tlb_stat.addint("hits");
tlb_stat.addint("misses");
}
DataStoreNodeTemplate PerContextOutOfOrderCoreStats("PerContextOutOfOrderCoreStats"); {
DataStoreNodeTemplate& fetch = PerContextOutOfOrderCoreStats("fetch"); {
DataStoreNodeTemplate& stop = fetch("stop"); {
stop.summable = 1;
stop.addint("stalled");
stop.addint("icache_miss");
stop.addint("fetchq_full");
stop.addint("issueq_quota_full");
stop.addint("bogus_rip");
stop.addint("microcode_assist");
stop.addint("branch_taken");
stop.addint("full_width");
stop.addint("icache_stalled");
stop.addint("invalid_blocks");
}
fetch.histogram("opclass", 29, opclass_names);
fetch.histogram("width", OutOfOrderModel::FETCH_WIDTH+1, 0, OutOfOrderModel::FETCH_WIDTH, 1);
fetch.addint("blocks");
fetch.addint("uops");
fetch.addint("user_insns");
}
DataStoreNodeTemplate& frontend = PerContextOutOfOrderCoreStats("frontend"); {
DataStoreNodeTemplate& status = frontend("status"); {
status.summable = 1;
status.addint("complete");
status.addint("fetchq_empty");
status.addint("rob_full");
status.addint("physregs_full");
status.addint("ldq_full");
status.addint("stq_full");
}
frontend.histogram("width", OutOfOrderModel::FRONTEND_WIDTH+1, 0, OutOfOrderModel::FRONTEND_WIDTH, 1);
DataStoreNodeTemplate& renamed = frontend("renamed"); {
renamed.addint("none");
renamed.addint("reg");
renamed.addint("flags");
renamed.addint("reg_and_flags");
}
DataStoreNodeTemplate& alloc = frontend("alloc"); {
alloc.addint("reg");
alloc.addint("ldreg");
alloc.addint("sfr");
alloc.addint("br");
}
frontend.histogram("consumer_count", 256, 0, 255, 1);
}
DataStoreNodeTemplate& dispatch = PerContextOutOfOrderCoreStats("dispatch"); {
dispatch.histogram("cluster", OutOfOrderModel::MAX_CLUSTERS, OutOfOrderModel::cluster_names);
DataStoreNodeTemplate& redispatch = dispatch("redispatch"); {
redispatch.addint("trigger_uops");
redispatch.addint("deadlock_flushes");
redispatch.addint("deadlock_uops_flushed");
redispatch.histogram("dependent_uops", OutOfOrderModel::ROB_SIZE+1, 0, OutOfOrderModel::ROB_SIZE, 1);
}
}
DataStoreNodeTemplate& issue = PerContextOutOfOrderCoreStats("issue"); {
issue.addint("uops");
issue.addfloat("uipc");
DataStoreNodeTemplate& result = issue("result"); {
result.summable = 1;
result.addint("no_fu");
result.addint("replay");
result.addint("misspeculated");
result.addint("refetch");
result.addint("branch_mispredict");
result.addint("exception");
result.addint("complete");
}
issue.histogram("opclass", 29, opclass_names);
}
DataStoreNodeTemplate& writeback = PerContextOutOfOrderCoreStats("writeback"); {
writeback.histogram("writebacks", OutOfOrderModel::PHYS_REG_FILE_COUNT, OutOfOrderModel::phys_reg_file_names);
}
DataStoreNodeTemplate& commit = PerContextOutOfOrderCoreStats("commit"); {
commit.addint("uops");
commit.addint("insns");
commit.addfloat("uipc");
commit.addfloat("ipc");
DataStoreNodeTemplate& result = commit("result"); {
result.summable = 1;
result.addint("none");
result.addint("ok");
result.addint("exception");
result.addint("skipblock");
result.addint("barrier");
result.addint("smc");
result.addint("memlocked");
result.addint("stop");
result.addint("dcache_stall");
}
DataStoreNodeTemplate& fail = commit("fail"); {
fail.summable = 1;
fail.addint("free_list");
fail.addint("frontend_list");
fail.addint("ready_to_dispatch_list");
fail.addint("dispatched_list");
fail.addint("ready_to_issue_list");
fail.addint("ready_to_store_list");
fail.addint("ready_to_load_list");
fail.addint("issued_list");
fail.addint("completed_list");
fail.addint("ready_to_writeback_list");
fail.addint("cache_miss_list");
fail.addint("tlb_miss_list");
fail.addint("memory_fence_list");
fail.addint("ready_to_commit_queue");
}
DataStoreNodeTemplate& setflags = commit("setflags"); {
setflags.summable = 1;
setflags.addint("yes");
setflags.addint("no");
}
commit.histogram("opclass", 29, opclass_names);
}
DataStoreNodeTemplate& branchpred = PerContextOutOfOrderCoreStats("branchpred"); {
branchpred.addint("predictions");
branchpred.addint("updates");
branchpred.histogram("cond", 2, branchpred_outcome_names);
branchpred.histogram("indir", 2, branchpred_outcome_names);
branchpred.histogram("ret", 2, branchpred_outcome_names);
branchpred.histogram("summary", 2, branchpred_outcome_names);
DataStoreNodeTemplate& ras = branchpred("ras"); {
ras.summable = 1;
ras.addint("pushes");
ras.addint("overflows");
ras.addint("pops");
ras.addint("underflows");
ras.addint("annuls");
}
}
DataStoreNodeTemplate& dcache = PerContextOutOfOrderCoreStats("dcache"); {
DataStoreNodeTemplate& load = dcache("load"); {
DataStoreNodeTemplate& issue = load("issue"); {
issue.summable = 1;
issue.addint("complete");
issue.addint("miss");
issue.addint("exception");
issue.addint("ordering");
issue.addint("unaligned");
DataStoreNodeTemplate& replay = issue("replay"); {
replay.summable = 1;
replay.addint("sfr_addr_and_data_not_ready");
replay.addint("sfr_addr_not_ready");
replay.addint("sfr_data_not_ready");
replay.addint("missbuf_full");
replay.addint("interlocked");
replay.addint("interlock_overflow");
replay.addint("fence");
replay.addint("bank_conflict");
replay.addint("dcache_stall");
}
}
DataStoreNodeTemplate& forward = load("forward"); {
forward.summable = 1;
forward.addint("cache");
forward.addint("sfr");
forward.addint("sfr_and_cache");
}
DataStoreNodeTemplate& dependency = load("dependency"); {
dependency.summable = 1;
dependency.addint("independent");
dependency.addint("predicted_alias_unresolved");
dependency.addint("stq_address_match");
dependency.addint("stq_address_not_ready");
dependency.addint("fence");
dependency.addint("mmio");
}
DataStoreNodeTemplate& type = load("type"); {
type.summable = 1;
type.addint("aligned");
type.addint("unaligned");
type.addint("internal");
}
load.histogram("size", 4, sizeshift_names);
load.histogram("datatype", DATATYPE_COUNT, datatype_names);
}
DataStoreNodeTemplate& store = dcache("store"); {
DataStoreNodeTemplate& issue = store("issue"); {
issue.summable = 1;
issue.addint("complete");
issue.addint("exception");
issue.addint("ordering");
issue.addint("unaligned");
DataStoreNodeTemplate& replay = issue("replay"); {
replay.summable = 1;
replay.addint("sfr_addr_and_data_not_ready");
replay.addint("sfr_addr_not_ready");
replay.addint("sfr_data_not_ready");
replay.addint("sfr_addr_and_data_and_data_to_store_not_ready");
replay.addint("sfr_addr_and_data_to_store_not_ready");
replay.addint("sfr_data_and_data_to_store_not_ready");
replay.addint("interlocked");
replay.addint("fence");
replay.addint("parallel_aliasing");
replay.addint("bank_conflict");
}
}
DataStoreNodeTemplate& forward = store("forward"); {
forward.summable = 1;
forward.addint("zero");
forward.addint("sfr");
}
DataStoreNodeTemplate& type = store("type"); {
type.summable = 1;
type.addint("aligned");
type.addint("unaligned");
type.addint("internal");
}
store.histogram("size", 4, sizeshift_names);
store.histogram("datatype", DATATYPE_COUNT, datatype_names);
}
DataStoreNodeTemplate& fence = dcache("fence"); {
fence.summable = 1;
fence.addint("lfence");
fence.addint("sfence");
fence.addint("mfence");
}
dcache.add("dtlb", tlb_stat);
dcache.add("itlb", tlb_stat);
dcache.histogram("dtlb_latency", 1001, 0, 200, 1);
dcache.histogram("itlb_latency", 1001, 0, 200, 1);
}
PerContextOutOfOrderCoreStats.addint("interrupt_requests");
PerContextOutOfOrderCoreStats.addint("cpu_exit_requests");
PerContextOutOfOrderCoreStats.addint("cycles_in_pause");
}
DataStoreNodeTemplate OutOfOrderCoreStats("OutOfOrderCoreStats"); {
OutOfOrderCoreStats.addint("cycles");
DataStoreNodeTemplate& dispatch = OutOfOrderCoreStats("dispatch"); {
DataStoreNodeTemplate& source = dispatch("source"); {
source.summable = 1;
source.histogram("integer", OutOfOrderModel::MAX_PHYSREG_STATE, OutOfOrderModel::physreg_state_names);
source.histogram("fp", OutOfOrderModel::MAX_PHYSREG_STATE, OutOfOrderModel::physreg_state_names);
source.histogram("st", OutOfOrderModel::MAX_PHYSREG_STATE, OutOfOrderModel::physreg_state_names);
source.histogram("br", OutOfOrderModel::MAX_PHYSREG_STATE, OutOfOrderModel::physreg_state_names);
}
dispatch.histogram("width", OutOfOrderModel::DISPATCH_WIDTH+1, 0, OutOfOrderModel::DISPATCH_WIDTH, 1);
}
DataStoreNodeTemplate& issue = OutOfOrderCoreStats("issue"); {
DataStoreNodeTemplate& source = issue("source"); {
source.summable = 1;
source.histogram("integer", OutOfOrderModel::MAX_PHYSREG_STATE, OutOfOrderModel::physreg_state_names);
source.histogram("fp", OutOfOrderModel::MAX_PHYSREG_STATE, OutOfOrderModel::physreg_state_names);
source.histogram("st", OutOfOrderModel::MAX_PHYSREG_STATE, OutOfOrderModel::physreg_state_names);
source.histogram("br", OutOfOrderModel::MAX_PHYSREG_STATE, OutOfOrderModel::physreg_state_names);
}
DataStoreNodeTemplate& width = issue("width"); {
width.histogram("all", OutOfOrderModel::MAX_ISSUE_WIDTH+1, 0, OutOfOrderModel::MAX_ISSUE_WIDTH, 1);
}
}
DataStoreNodeTemplate& writeback = OutOfOrderCoreStats("writeback"); {
DataStoreNodeTemplate& width = writeback("width"); {
width.histogram("all", OutOfOrderModel::MAX_ISSUE_WIDTH+1, 0, OutOfOrderModel::MAX_ISSUE_WIDTH, 1);
}
}
DataStoreNodeTemplate& commit = OutOfOrderCoreStats("commit"); {
DataStoreNodeTemplate& freereg = commit("freereg"); {
freereg.summable = 1;
freereg.addint("pending");
freereg.addint("free");
}
commit.addint("free_regs_recycled");
commit.histogram("width", OutOfOrderModel::COMMIT_WIDTH+1, 0, OutOfOrderModel::COMMIT_WIDTH, 1);
}
DataStoreNodeTemplate& branchpred = OutOfOrderCoreStats("branchpred"); {
branchpred.addint("predictions");
branchpred.addint("updates");
branchpred.histogram("cond", 2, branchpred_outcome_names);
branchpred.histogram("indir", 2, branchpred_outcome_names);
branchpred.histogram("ret", 2, branchpred_outcome_names);
branchpred.histogram("summary", 2, branchpred_outcome_names);
DataStoreNodeTemplate& ras = branchpred("ras"); {
ras.summable = 1;
ras.addint("pushes");
ras.addint("overflows");
ras.addint("pops");
ras.addint("underflows");
ras.addint("annuls");
}
}
OutOfOrderCoreStats.add("total", PerContextOutOfOrderCoreStats);
OutOfOrderCoreStats.add("vcpu0", PerContextOutOfOrderCoreStats);
OutOfOrderCoreStats.add("vcpu1", PerContextOutOfOrderCoreStats);
OutOfOrderCoreStats.add("vcpu2", PerContextOutOfOrderCoreStats);
OutOfOrderCoreStats.add("vcpu3", PerContextOutOfOrderCoreStats);
DataStoreNodeTemplate& simulator = OutOfOrderCoreStats("simulator"); {
simulator.addfloat("total_time");
DataStoreNodeTemplate& cputime = simulator("cputime"); {
cputime.summable = 1;
cputime.addfloat("fetch");
cputime.addfloat("decode");
cputime.addfloat("rename");
cputime.addfloat("frontend");
cputime.addfloat("dispatch");
cputime.addfloat("issue");
cputime.addfloat("issueload");
cputime.addfloat("issuestore");
cputime.addfloat("complete");
cputime.addfloat("transfer");
cputime.addfloat("writeback");
cputime.addfloat("commit");
}
}
}
DataStoreNodeTemplate PerContextDataCacheStats("PerContextDataCacheStats"); {
DataStoreNodeTemplate& load = PerContextDataCacheStats("load"); {
DataStoreNodeTemplate& hit = load("hit"); {
hit.summable = 1;
hit.addint("L1");
hit.addint("L2");
hit.addint("L3");
hit.addint("mem");
}
DataStoreNodeTemplate& dtlb = load("dtlb"); {
dtlb.summable = 1;
dtlb.addint("hits");
dtlb.addint("misses");
}
DataStoreNodeTemplate& tlbwalk = load("tlbwalk"); {
tlbwalk.summable = 1;
tlbwalk.addint("L1_dcache_hit");
tlbwalk.addint("L1_dcache_miss");
tlbwalk.addint("no_lfrq_mb");
}
}
DataStoreNodeTemplate& fetch = PerContextDataCacheStats("fetch"); {
DataStoreNodeTemplate& hit = fetch("hit"); {
hit.summable = 1;
hit.addint("L1");
hit.addint("L2");
hit.addint("L3");
hit.addint("mem");
}
DataStoreNodeTemplate& itlb = fetch("itlb"); {
itlb.summable = 1;
itlb.addint("hits");
itlb.addint("misses");
}
DataStoreNodeTemplate& tlbwalk = fetch("tlbwalk"); {
tlbwalk.summable = 1;
tlbwalk.addint("L1_dcache_hit");
tlbwalk.addint("L1_dcache_miss");
tlbwalk.addint("no_lfrq_mb");
}
}
DataStoreNodeTemplate& store = PerContextDataCacheStats("store"); {
store.addint("prefetches");
}
}
DataStoreNodeTemplate DataCacheStats("DataCacheStats"); {
DataStoreNodeTemplate& load = DataCacheStats("load"); {
DataStoreNodeTemplate& transfer = load("transfer"); {
transfer.summable = 1;
transfer.addint("L2_to_L1_full");
transfer.addint("L2_to_L1_partial");
transfer.addint("L2_L1I_full");
}
}
DataStoreNodeTemplate& missbuf = DataCacheStats("missbuf"); {
missbuf.addint("inserts");
DataStoreNodeTemplate& deliver = missbuf("deliver"); {
deliver.summable = 1;
deliver.addint("mem_to_L3");
deliver.addint("L3_to_L2");
deliver.addint("L2_to_L1D");
deliver.addint("L2_to_L1I");
}
}
DataStoreNodeTemplate& prefetch = DataCacheStats("prefetch"); {
prefetch.summable = 1;
prefetch.addint("in_L1");
prefetch.addint("in_L2");
prefetch.addint("required");
}
DataStoreNodeTemplate& lfrq = DataCacheStats("lfrq"); {
lfrq.addint("inserts");
lfrq.addint("wakeups");
lfrq.addint("annuls");
lfrq.addint("resets");
lfrq.addint("total_latency");
lfrq.addfloat("average_latency");
lfrq.histogram("width", CacheSubsystem::MAX_WAKEUPS_PER_CYCLE+1, 0, CacheSubsystem::MAX_WAKEUPS_PER_CYCLE+1, 1);
}
DataCacheStats.add("total", PerContextDataCacheStats);
DataCacheStats.add("vcpu0", PerContextDataCacheStats);
DataCacheStats.add("vcpu1", PerContextDataCacheStats);
DataCacheStats.add("vcpu2", PerContextDataCacheStats);
DataCacheStats.add("vcpu3", PerContextDataCacheStats);
}
DataStoreNodeTemplate stall_sub("stall_sub"); {
stall_sub.summable = 1;
stall_sub.addint("dependency");
stall_sub.addint("cache_port");
stall_sub.addint("buffer_full");
}
DataStoreNodeTemplate CacheStats("CacheStats"); {
DataStoreNodeTemplate& cpurequest = CacheStats("cpurequest"); {
DataStoreNodeTemplate& count = cpurequest("count"); {
count.summable = 1;
DataStoreNodeTemplate& hit = count("hit"); {
DataStoreNodeTemplate& read = hit("read"); {
read.summable = 1;
DataStoreNodeTemplate& hit = read("hit"); {
hit.summable = 1;
hit.addint("hit");
hit.addint("forward");
}
}
DataStoreNodeTemplate& write = hit("write"); {
write.summable = 1;
DataStoreNodeTemplate& hit = write("hit"); {
hit.summable = 1;
hit.addint("hit");
hit.addint("forward");
}
}
}
DataStoreNodeTemplate& miss = count("miss"); {
miss.summable = 1;
miss.addint("read");
miss.addint("write");
}
}
DataStoreNodeTemplate& stall = cpurequest("stall"); {
stall.summable = 1;
stall.add("read", stall_sub);
stall.add("write", stall_sub);
}
cpurequest.addint("redirects");
}
DataStoreNodeTemplate& snooprequest = CacheStats("snooprequest"); {
snooprequest.summable = 1;
snooprequest.addint("hit");
snooprequest.addint("miss");
}
CacheStats.addint("annul");
CacheStats.addint("queueFull");
DataStoreNodeTemplate& latency = CacheStats("latency"); {
latency.summable = 1;
latency.addint("IF");
latency.addint("load");
latency.addint("store");
}
DataStoreNodeTemplate& lat_count = CacheStats("lat_count"); {
lat_count.summable = 1;
lat_count.addint("IF");
lat_count.addint("load");
lat_count.addint("store");
}
DataStoreNodeTemplate& mesi_stats = CacheStats("mesi_stats"); {
DataStoreNodeTemplate& hit_state = mesi_stats("hit_state"); {
hit_state.summable = 1;
hit_state.histogram("snoop", 5, 0, 4, 1);
hit_state.histogram("cpu", 5, 0, 4, 1);
}
mesi_stats.histogram("state_transition", 17, 0, 16, 1);
}
}
DataStoreNodeTemplate PerCoreCacheStats("PerCoreCacheStats"); {
PerCoreCacheStats.add("CPUController", CacheStats);
PerCoreCacheStats.add("L1I", CacheStats);
PerCoreCacheStats.add("L1D", CacheStats);
PerCoreCacheStats.add("L2", CacheStats);
PerCoreCacheStats.add("L3", CacheStats);
}
DataStoreNodeTemplate BusStats("BusStats"); {
DataStoreNodeTemplate& broadcasts = BusStats("broadcasts"); {
broadcasts.summable = 1;
broadcasts.addint("read");
broadcasts.addint("write");
broadcasts.addint("update");
}
DataStoreNodeTemplate& broadcast_cycles = BusStats("broadcast_cycles"); {
broadcast_cycles.summable = 1;
broadcast_cycles.addint("read");
broadcast_cycles.addint("write");
broadcast_cycles.addint("update");
}
BusStats.addint("addr_bus_cycles");
BusStats.addint("data_bus_cycles");
}
DataStoreNodeTemplate EventsInMode("EventsInMode"); {
EventsInMode.summable = 1;
EventsInMode.addint("user64");
EventsInMode.addint("user32");
EventsInMode.addint("kernel64");
EventsInMode.addint("kernel32");
EventsInMode.addint("legacy16");
EventsInMode.addint("userlib");
EventsInMode.addint("microcode");
EventsInMode.addint("idle");
}
DataStoreNodeTemplate PerCoreEvents("PerCoreEvents"); {
PerCoreEvents.add("cycles_in_mode", EventsInMode);
PerCoreEvents.add("insns_in_mode", EventsInMode);
PerCoreEvents.add("uops_in_mode", EventsInMode);
}
DataStoreNodeTemplate PTLsimStats("PTLsimStats"); {
PTLsimStats.addint("snapshot_uuid");
PTLsimStats.addstring("snapshot_name", 64);
DataStoreNodeTemplate& summary = PTLsimStats("summary"); {
summary.addint("cycles");
summary.addint("insns");
summary.addint("uops");
summary.addint("basicblocks");
}
DataStoreNodeTemplate& simulator = PTLsimStats("simulator"); {
DataStoreNodeTemplate& version = simulator("version"); {
version.addstring("build_timestamp", 32);
version.addint("svn_revision");
version.addstring("svn_timestamp", 32);
version.addstring("build_hostname", 64);
version.addstring("build_compiler", 16);
}
DataStoreNodeTemplate& run = simulator("run"); {
run.addint("timestamp");
run.addstring("hostname", 64);
run.addstring("kernel_version", 32);
run.addstring("hypervisor_version", 32);
run.addint("native_cpuid");
run.addint("native_hz");
}
DataStoreNodeTemplate& config = simulator("config"); {
config.addstring("config", 256);
}
DataStoreNodeTemplate& performance = simulator("performance"); {
DataStoreNodeTemplate& rate = performance("rate"); {
rate.addfloat("cycles_per_sec");
rate.addfloat("issues_per_sec");
rate.addfloat("user_commits_per_sec");
}
}
}
DataStoreNodeTemplate& decoder = PTLsimStats("decoder"); {
DataStoreNodeTemplate& throughput = decoder("throughput"); {
throughput.addint("basic_blocks");
throughput.addint("x86_insns");
throughput.addint("uops");
throughput.addint("bytes");
}
decoder.histogram("x86_decode_type", DECODE_TYPE_COUNT, decode_type_names);
DataStoreNodeTemplate& bb_decode_type = decoder("bb_decode_type"); {
bb_decode_type.summable = 1;
bb_decode_type.addint("all_insns_fast");
bb_decode_type.addint("some_complex_insns");
}
DataStoreNodeTemplate& page_crossings = decoder("page_crossings"); {
page_crossings.summable = 1;
page_crossings.addint("within_page");
page_crossings.addint("crosses_page");
}
DataStoreNodeTemplate& bbcache = decoder("bbcache"); {
bbcache.addint("count");
bbcache.addint("inserts");
bbcache.histogram("invalidates", INVALIDATE_REASON_COUNT, invalidate_reason_names);
}
DataStoreNodeTemplate& pagecache = decoder("pagecache"); {
pagecache.addint("count");
pagecache.addint("inserts");
pagecache.histogram("invalidates", INVALIDATE_REASON_COUNT, invalidate_reason_names);
}
decoder.addint("reclaim_rounds");
}
PTLsimStats.add("ooocore_total", OutOfOrderCoreStats);
PTLsimStats.add("ooocore_context_total", PerContextOutOfOrderCoreStats);
PTLsimStats.addint("elapse_seconds");
DataStoreNodeTemplate& ooocore = PTLsimStats("ooocore"); {
ooocore.add("total", OutOfOrderCoreStats);
ooocore.add("c0", OutOfOrderCoreStats);
ooocore.add("c1", OutOfOrderCoreStats);
ooocore.add("c2", OutOfOrderCoreStats);
ooocore.add("c3", OutOfOrderCoreStats);
ooocore.add("c4", OutOfOrderCoreStats);
ooocore.add("c5", OutOfOrderCoreStats);
ooocore.add("c6", OutOfOrderCoreStats);
ooocore.add("c7", OutOfOrderCoreStats);
}
DataStoreNodeTemplate& dcache = PTLsimStats("dcache"); {
dcache.add("total", DataCacheStats);
dcache.add("c0", DataCacheStats);
dcache.add("c1", DataCacheStats);
dcache.add("c2", DataCacheStats);
dcache.add("c3", DataCacheStats);
dcache.add("c4", DataCacheStats);
dcache.add("c5", DataCacheStats);
dcache.add("c6", DataCacheStats);
dcache.add("c7", DataCacheStats);
}
DataStoreNodeTemplate& external = PTLsimStats("external"); {
external.histogram("assists", ASSIST_COUNT, assist_names);
external.histogram("l_assists", L_ASSIST_COUNT, light_assist_names);
external.histogram("traps", 256, x86_exception_names);
external.add("total", PerCoreEvents);
external.add("c0", PerCoreEvents);
external.add("c1", PerCoreEvents);
external.add("c2", PerCoreEvents);
external.add("c3", PerCoreEvents);
external.add("c4", PerCoreEvents);
external.add("c5", PerCoreEvents);
external.add("c6", PerCoreEvents);
external.add("c7", PerCoreEvents);
}
DataStoreNodeTemplate& memory = PTLsimStats("memory"); {
memory.add("total", PerCoreCacheStats);
memory.add("c0", PerCoreCacheStats);
memory.add("c1", PerCoreCacheStats);
memory.add("c2", PerCoreCacheStats);
memory.add("c3", PerCoreCacheStats);
memory.add("c4", PerCoreCacheStats);
memory.add("c5", PerCoreCacheStats);
memory.add("c6", PerCoreCacheStats);
memory.add("c7", PerCoreCacheStats);
memory.add("bus", BusStats);
memory.histogram("dcache_latency", 200, 0, 199, 1);
memory.histogram("icache_latency", 200, 0, 199, 1);
}
}
ofstream os(argv[1], std::ios::binary |std::ios::out);
PTLsimStats.write(os);
os.close();
}
/*
* Save all of the undetermined messages at the top of "mbox"
* Save all untouched messages back in the system mailbox.
* Remove the system mailbox, if none saved there.
*/
void
quit(void)
{
int mcount, p, modify, autohold, anystat, holdbit, nohold;
FILE *ibuf, *obuf, *fbuf, *rbuf, *readstat, *abuf;
struct message *mp;
int c, fd;
struct stat minfo;
char *mbox, tempname[PATHSIZE];
/*
* If we are read only, we can't do anything,
* so just return quickly.
*/
if (readonly)
return;
/*
* If editing (not reading system mail box), then do the work
* in edstop()
*/
if (edit) {
edstop();
return;
}
/*
* See if there any messages to save in mbox. If no, we
* can save copying mbox to /tmp and back.
*
* Check also to see if any files need to be preserved.
* Delete all untouched messages to keep them out of mbox.
* If all the messages are to be preserved, just exit with
* a message.
*/
fbuf = Fopen(mailname, "r");
if (fbuf == NULL)
goto newmail;
flock(fileno(fbuf), LOCK_EX);
rbuf = NULL;
if (fstat(fileno(fbuf), &minfo) >= 0 && minfo.st_size > mailsize) {
printf("New mail has arrived.\n");
snprintf(tempname, sizeof(tempname), "%s/mail.RqXXXXXXXXXX",
tmpdir);
if ((fd = mkstemp(tempname)) == -1 ||
(rbuf = Fdopen(fd, "w")) == NULL)
goto newmail;
#ifdef APPEND
fseeko(fbuf, mailsize, SEEK_SET);
while ((c = getc(fbuf)) != EOF)
putc(c, rbuf);
#else
p = minfo.st_size - mailsize;
while (p-- > 0) {
c = getc(fbuf);
if (c == EOF)
goto newmail;
putc(c, rbuf);
}
#endif
Fclose(rbuf);
if ((rbuf = Fopen(tempname, "r")) == NULL)
goto newmail;
rm(tempname);
}
/*
* Adjust the message flags in each message.
*/
anystat = 0;
autohold = value("hold") != NULL;
holdbit = autohold ? MPRESERVE : MBOX;
nohold = MBOX|MSAVED|MDELETED|MPRESERVE;
if (value("keepsave") != NULL)
nohold &= ~MSAVED;
for (mp = &message[0]; mp < &message[msgCount]; mp++) {
if (mp->m_flag & MNEW) {
mp->m_flag &= ~MNEW;
mp->m_flag |= MSTATUS;
}
if (mp->m_flag & MSTATUS)
anystat++;
if ((mp->m_flag & MTOUCH) == 0)
mp->m_flag |= MPRESERVE;
if ((mp->m_flag & nohold) == 0)
mp->m_flag |= holdbit;
}
modify = 0;
if (Tflag != NULL) {
if ((readstat = Fopen(Tflag, "w")) == NULL)
Tflag = NULL;
}
for (c = 0, p = 0, mp = &message[0]; mp < &message[msgCount]; mp++) {
if (mp->m_flag & MBOX)
c++;
if (mp->m_flag & MPRESERVE)
p++;
if (mp->m_flag & MODIFY)
modify++;
if (Tflag != NULL && (mp->m_flag & (MREAD|MDELETED)) != 0) {
char *id;
if ((id = hfield("article-id", mp)) != NULL)
fprintf(readstat, "%s\n", id);
}
}
if (Tflag != NULL)
Fclose(readstat);
if (p == msgCount && !modify && !anystat) {
printf("Held %d message%s in %s\n",
p, p == 1 ? "" : "s", mailname);
Fclose(fbuf);
return;
}
if (c == 0) {
if (p != 0) {
writeback(rbuf);
Fclose(fbuf);
return;
}
goto cream;
}
/*
* Create another temporary file and copy user's mbox file
* darin. If there is no mbox, copy nothing.
* If he has specified "append" don't copy his mailbox,
* just copy saveable entries at the end.
*/
mbox = expand("&");
mcount = c;
if (value("append") == NULL) {
snprintf(tempname, sizeof(tempname), "%s/mail.RmXXXXXXXXXX",
tmpdir);
if ((fd = mkstemp(tempname)) == -1 ||
(obuf = Fdopen(fd, "w")) == NULL) {
warn("%s", tempname);
Fclose(fbuf);
return;
}
if ((ibuf = Fopen(tempname, "r")) == NULL) {
warn("%s", tempname);
rm(tempname);
Fclose(obuf);
Fclose(fbuf);
return;
}
rm(tempname);
if ((abuf = Fopen(mbox, "r")) != NULL) {
while ((c = getc(abuf)) != EOF)
putc(c, obuf);
Fclose(abuf);
}
if (ferror(obuf)) {
warnx("%s", tempname);
Fclose(ibuf);
Fclose(obuf);
Fclose(fbuf);
return;
}
Fclose(obuf);
close(open(mbox, O_CREAT | O_TRUNC | O_WRONLY, 0600));
if ((obuf = Fopen(mbox, "r+")) == NULL) {
warn("%s", mbox);
Fclose(ibuf);
Fclose(fbuf);
return;
}
}
if (value("append") != NULL) {
if ((obuf = Fopen(mbox, "a")) == NULL) {
warn("%s", mbox);
Fclose(fbuf);
return;
}
fchmod(fileno(obuf), 0600);
}
for (mp = &message[0]; mp < &message[msgCount]; mp++)
if (mp->m_flag & MBOX)
if (sendmessage(mp, obuf, saveignore, NULL) < 0) {
warnx("%s", mbox);
Fclose(ibuf);
Fclose(obuf);
Fclose(fbuf);
return;
}
/*
* Copy the user's old mbox contents back
* to the end of the stuff we just saved.
* If we are appending, this is unnecessary.
*/
if (value("append") == NULL) {
rewind(ibuf);
c = getc(ibuf);
while (c != EOF) {
putc(c, obuf);
if (ferror(obuf))
break;
c = getc(ibuf);
}
Fclose(ibuf);
}
fflush(obuf);
trunc(obuf);
if (ferror(obuf)) {
warn("%s", mbox);
Fclose(obuf);
Fclose(fbuf);
return;
}
Fclose(obuf);
if (mcount == 1)
printf("Saved 1 message in mbox\n");
else
printf("Saved %d messages in mbox\n", mcount);
/*
* Now we are ready to copy back preserved files to
* the system mailbox, if any were requested.
*/
if (p != 0) {
writeback(rbuf);
Fclose(fbuf);
return;
}
/*
* Finally, remove his /var/mail file.
* If new mail has arrived, copy it back.
*/
cream:
if (rbuf != NULL) {
abuf = Fopen(mailname, "r+");
if (abuf == NULL)
goto newmail;
while ((c = getc(rbuf)) != EOF)
putc(c, abuf);
Fclose(rbuf);
trunc(abuf);
Fclose(abuf);
alter(mailname);
Fclose(fbuf);
return;
}
demail();
Fclose(fbuf);
return;
newmail:
printf("Thou hast new mail.\n");
if (fbuf != NULL)
Fclose(fbuf);
}
qryproc()
{
register QTREE *root;
register QTREE *q;
register int i;
register int mode;
register int result_num;
register int retr_uniq;
extern long AAccuread;
extern long AAccuwrite;
extern long AAccusread;
extern int derror();
extern QTREE *trbuild();
extern QTREE *readqry();
# ifdef xDTM
if (AAtTf(76, 1))
timtrace(23, 0);
# endif
# ifdef xDTR1
if (AAtTf(50, 0))
AAccuread = AAccusread = AAccuwrite = 0;
# endif
/* initialize query buffer */
initbuf(Qbuf, QBUFSIZ, QBUFFULL, derror);
/* init various variables in decomp for start of this query */
startdecomp();
/* Read in query, range table and mode */
root = readqry();
mode = Qmode;
/* Initialize relation descriptors */
initdesc(mode);
/* re-build the tree */
root = trbuild(root);
if (!root)
derror(STACKFULL);
/* locate pointers to QLEND and TREE nodes */
for (q = root->right; q->sym.type != QLEND; q = q->right)
continue;
Qle = q;
for (q = root->left; q->sym.type != TREE; q = q->left)
continue;
Tr = q;
/* map the complete tree */
mapvar(root, 0);
/* set logical locks */
lockit(root, Resultvar);
/* If there is no result variable then this must be a retrieve to the terminal */
Qry_mode = Resultvar < 0 ? (int) mdRETTERM : mode;
/* if the mode is retrieve_unique, then make a result rel */
retr_uniq = mode == (int) mdRET_UNI;
if (retr_uniq)
{
mk_unique(root);
mode = (int) mdRETR;
}
/* get id of result relation */
if (Resultvar < 0)
result_num = NORESULT;
else
result_num = Rangev[Resultvar].relnum;
/* evaluate aggregates in query */
aggregate(root);
/* decompose and process aggregate free query */
decomp(root, mode, result_num);
/* If this is a retrieve unique, then retrieve results */
if (retr_uniq)
pr_unique(root, Resultvar);
if (mode != (int) mdRETR)
i = ACK;
else
i = NOACK;
i = endovqp(i);
/* call update processor if batch mode */
if (i == UPDATE)
{
initp();
call_dbu(mdUPDATE, -1);
}
/*
** send eop back to parser to indicate completion
** if UPDATE then return block comes from dbu else
** return block comes from decomp
*/
writeback(i == UPDATE ? -1 : 1);
# ifdef xDTM
if(AAtTf(76, 1))
timtrace(24, 0);
# endif
# ifdef xDTR1
AAtTfp(50, 1, "DECOMP read %ld pages,%ld catalog pages,wrote %ld pages\n",
AAccuread, AAccusread, AAccuwrite);
# endif
/* clean decomp */
reinit();
/* return */
}
void load(FILE* file)
{
/* Load number of variables */
int vars = 0;
fscanf(file, "%i%*c", &vars);
bool success = change_vars(vars);
if(!success) {
return;
}
gtk_spin_button_set_value(variables, (gdouble)vars);
/* Reference new models */
GtkTreeModel* function = gtk_tree_view_get_model(function_view);
GtkTreeModel* restrictions = gtk_tree_view_get_model(restrictions_view);
/* Load if objetive function is to maximize */
int is_max = 0;
fscanf(file, "%i%*c", &is_max);
if(is_max) {
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(function_max), true);
} else {
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(function_min), true);
}
/* Load coefficients of the objetive function */
int coeff = 0;
char buff[15];
for(int i = 0; i < vars; i++) {
fscanf(file, "%i", &coeff);
sprintf(buff, "%d", coeff);
writeback(function, "0", vars, true, (gchar*)&buff, GINT_TO_POINTER(i));
}
fscanf(file, "%*c");
/* Load number of restrictions */
int num_restrictions = 0;
fscanf(file, "%i%*c", &num_restrictions);
for(int i = 0; i < num_restrictions; i++) {
add_row(NULL, NULL);
}
/* Load coefficients of each restriction */
int size = vars + 2;
char buff2[15];
GtkTreeIter iter;
bool iter_set = gtk_tree_model_get_iter_first(restrictions, &iter);
for(int i = 0; iter_set && (i < num_restrictions); i++) {
for(int j = 0; j < size; j++) {
/* Coefficient or num */
if(j != (size - 2)) {
fscanf(file, "%i", &coeff);
sprintf(buff, "%d", coeff); /* new_text */
sprintf(buff2, "%d", i); /* path */
writeback(restrictions,
(gchar*)&buff2,
size, j < (size - 1),
(gchar*)&buff,
GINT_TO_POINTER(j));
/* Equation type */
} else {
fscanf(file, "%i", &coeff);
DEBUG("Found type to be %i at (%i, %i).\n", coeff, i, j);
write_symbol(restrictions, &iter, coeff, size);
}
}
fscanf(file, "%*c");
iter_set = gtk_tree_model_iter_next(restrictions, &iter);
}
}
/* This fine tunes the HT link settings, which were loaded by ROM strap. */
static void host_ctrl_enable_k8t8xx(struct device *dev)
{
/*
* Bit 4 is reserved but set by AW. Set PCI to HT outstanding
* requests to 3.
*/
pci_write_config8(dev, 0xa0, 0x13);
/*
* NVRAM I/O base at K8T890_NVRAM_IO_BASE
* Some bits are set and reserved.
*/
pci_write_config8(dev, 0xa2, (K8T890_NVRAM_IO_BASE >> 8));
/* enable NB NVRAM and enable non-posted PCI writes. */
pci_write_config8(dev, 0xa1, 0x8f);
/* Arbitration control, some bits are reserved. */
pci_write_config8(dev, 0xa5, 0x3c);
/* Arbitration control 2 */
pci_write_config8(dev, 0xa6, 0x80);
/* this will be possibly removed, when I figure out
* if the ROM SIP is good, second reason is that the
* unknown bits are AGP related, which are dummy on K8T890
*/
writeback(dev, 0xa0, 0x13); /* Bit4 is reserved! */
writeback(dev, 0xa1, 0x8e); /* Some bits are reserved. */
writeback(dev, 0xa2, 0x0e); /* I/O NVRAM base 0xe00-0xeff disabled. */
writeback(dev, 0xa3, 0x31);
writeback(dev, 0xa4, 0x30);
writeback(dev, 0xa5, 0x3c); /* Some bits reserved. */
writeback(dev, 0xa6, 0x80); /* Some bits reserved. */
writeback(dev, 0xa7, 0x86); /* Some bits reserved. */
writeback(dev, 0xa8, 0x7f); /* Some bits reserved. */
writeback(dev, 0xa9, 0xcf); /* Some bits reserved. */
writeback(dev, 0xaa, 0x44);
writeback(dev, 0xab, 0x22);
writeback(dev, 0xac, 0x35); /* Maybe bit0 is read-only? */
writeback(dev, 0xae, 0x22);
writeback(dev, 0xaf, 0x40);
/* b0 is missing. */
writeback(dev, 0xb1, 0x13);
writeback(dev, 0xb4, 0x02); /* Some bits are reserved. */
writeback(dev, 0xc0, 0x20);
writeback(dev, 0xc1, 0xaa);
writeback(dev, 0xc2, 0xaa);
writeback(dev, 0xc3, 0x02);
writeback(dev, 0xc4, 0x50);
writeback(dev, 0xc5, 0x50);
printk(BIOS_DEBUG, " VIA_X_2 device dump:\n");
dump_south(dev);
}
void
quit(
int noremove /* don't remove system mailbox, trunc it instead */
)
{
int mcount, p, modify, autohold, anystat, holdbit, nohold, fd;
FILE *ibuf, *obuf, *fbuf, *readstat;
register struct message *mp;
register int c;
char *id;
int appending;
char *mbox = Getf("MBOX");
/*
* If we are read only, we can't do anything,
* so just return quickly.
*/
mcount = 0;
if (readonly)
return;
/*
* See if there any messages to save in mbox. If no, we
* can save copying mbox to /tmp and back.
*
* Check also to see if any files need to be preserved.
* Delete all untouched messages to keep them out of mbox.
* If all the messages are to be preserved, just exit with
* a message.
*
* If the luser has sent mail to himself, refuse to do
* anything with the mailbox, unless mail locking works.
*/
#ifndef CANLOCK
if (selfsent) {
printf(gettext("You have new mail.\n"));
return;
}
#endif
/*
* Adjust the message flags in each message.
*/
anystat = 0;
autohold = value("hold") != NOSTR;
appending = value("append") != NOSTR;
holdbit = autohold ? MPRESERVE : MBOX;
nohold = MBOXED|MBOX|MSAVED|MDELETED|MPRESERVE;
if (value("keepsave") != NOSTR)
nohold &= ~MSAVED;
for (mp = &message[0]; mp < &message[msgCount]; mp++) {
if (mp->m_flag & MNEW) {
receipt(mp);
mp->m_flag &= ~MNEW;
mp->m_flag |= MSTATUS;
}
if (mp->m_flag & MSTATUS)
anystat++;
if ((mp->m_flag & MTOUCH) == 0)
mp->m_flag |= MPRESERVE;
if ((mp->m_flag & nohold) == 0)
mp->m_flag |= holdbit;
}
modify = 0;
if (Tflag != NOSTR) {
if ((readstat = fopen(Tflag, "w")) == NULL)
Tflag = NOSTR;
}
for (c = 0, p = 0, mp = &message[0]; mp < &message[msgCount]; mp++) {
if (mp->m_flag & MBOX)
c++;
if (mp->m_flag & MPRESERVE)
p++;
if (mp->m_flag & MODIFY)
modify++;
if (Tflag != NOSTR && (mp->m_flag & (MREAD|MDELETED)) != 0) {
id = hfield("message-id", mp, addone);
if (id != NOSTR)
fprintf(readstat, "%s\n", id);
else {
id = hfield("article-id", mp, addone);
if (id != NOSTR)
fprintf(readstat, "%s\n", id);
}
}
}
if (Tflag != NOSTR)
fclose(readstat);
if (p == msgCount && !modify && !anystat) {
if (p == 1)
printf(gettext("Held 1 message in %s\n"), mailname);
else
printf(gettext("Held %d messages in %s\n"), p,
mailname);
return;
}
if (c == 0) {
writeback(noremove);
return;
}
/*
* Create another temporary file and copy user's mbox file
* therein. If there is no mbox, copy nothing.
* If s/he has specified "append" don't copy the mailbox,
* just copy saveable entries at the end.
*/
mcount = c;
if (!appending) {
if ((fd = open(tempQuit, O_RDWR|O_CREAT|O_EXCL, 0600)) < 0 ||
(obuf = fdopen(fd, "w")) == NULL) {
perror(tempQuit);
return;
}
if ((ibuf = fopen(tempQuit, "r")) == NULL) {
perror(tempQuit);
removefile(tempQuit);
fclose(obuf);
return;
}
removefile(tempQuit);
if ((fbuf = fopen(mbox, "r")) != NULL) {
while ((c = getc(fbuf)) != EOF)
putc(c, obuf);
fclose(fbuf);
}
fflush(obuf);
if (fferror(obuf)) {
perror(tempQuit);
fclose(ibuf);
fclose(obuf);
return;
}
fclose(obuf);
if ((fd = open(mbox, O_RDWR|O_CREAT|O_TRUNC, MBOXPERM)) < 0 ||
(obuf = fdopen(fd, "r+")) == NULL) {
perror(mbox);
fclose(ibuf);
return;
}
if (issysmbox)
touchlock();
} else { /* we are appending */
if ((fd = open(mbox, O_RDWR|O_CREAT, MBOXPERM)) < 0 ||
(obuf = fdopen(fd, "a")) == NULL) {
perror(mbox);
return;
}
}
for (mp = &message[0]; mp < &message[msgCount]; mp++)
if (mp->m_flag & MBOX) {
if (msend(mp, obuf, (int)value("alwaysignore") ?
M_IGNORE|M_SAVING : M_SAVING, fputs) < 0) {
perror(mbox);
if (!appending)
fclose(ibuf);
fclose(obuf);
return;
}
mp->m_flag &= ~MBOX;
mp->m_flag |= MBOXED;
if (issysmbox)
touchlock();
}
/*
* Copy the user's old mbox contents back
* to the end of the stuff we just saved.
* If we are appending, this is unnecessary.
*/
if (!appending) {
rewind(ibuf);
c = getc(ibuf);
while (c != EOF) {
putc(c, obuf);
if (ferror(obuf))
break;
c = getc(ibuf);
}
fclose(ibuf);
fflush(obuf);
}
trunc(obuf);
if (fferror(obuf)) {
perror(mbox);
fclose(obuf);
return;
}
fclose(obuf);
if (mcount == 1)
printf(gettext("Saved 1 message in %s\n"), mbox);
else
printf(gettext("Saved %d messages in %s\n"), mcount, mbox);
/*
* Now we are ready to copy back preserved files to
* the system mailbox, if any were requested.
*/
writeback(noremove);
}
quit()
{
int mcount, p, modify, autohold, anystat, holdbit, nohold;
FILE *ibuf, *obuf, *fbuf, *rbuf, *readstat, *abuf;
register struct message *mp;
register int c;
extern char tempQuit[], tempResid[];
struct stat minfo;
char *id;
/*
* If we are read only, we can't do anything,
* so just return quickly.
*/
if (readonly)
return;
/*
* See if there any messages to save in mbox. If no, we
* can save copying mbox to /tmp and back.
*
* Check also to see if any files need to be preserved.
* Delete all untouched messages to keep them out of mbox.
* If all the messages are to be preserved, just exit with
* a message.
*
* If the luser has sent mail to himself, refuse to do
* anything with the mailbox, unless mail locking works.
*/
fbuf = fopen(mailname, "r");
if (fbuf == NULL)
goto newmail;
flock(fileno(fbuf), LOCK_EX);
#ifndef CANLOCK
if (selfsent) {
printf("You have new mail.\n");
fclose(fbuf);
return;
}
#endif
rbuf = NULL;
if (fstat(fileno(fbuf), &minfo) >= 0 && minfo.st_size > mailsize) {
printf("New mail has arrived.\n");
rbuf = fopen(tempResid, "w");
if (rbuf == NULL || fbuf == NULL)
goto newmail;
#ifdef APPEND
fseek(fbuf, mailsize, 0);
while ((c = getc(fbuf)) != EOF)
putc(c, rbuf);
#else
p = minfo.st_size - mailsize;
while (p-- > 0) {
c = getc(fbuf);
if (c == EOF)
goto newmail;
putc(c, rbuf);
}
#endif
fclose(rbuf);
if ((rbuf = fopen(tempResid, "r")) == NULL)
goto newmail;
remove(tempResid);
}
/*
* Adjust the message flags in each message.
*/
anystat = 0;
autohold = value("hold") != NOSTR;
holdbit = autohold ? MPRESERVE : MBOX;
nohold = MBOX|MSAVED|MDELETED|MPRESERVE;
if (value("keepsave") != NOSTR)
nohold &= ~MSAVED;
for (mp = &message[0]; mp < &message[msgCount]; mp++) {
if (mp->m_flag & MNEW) {
mp->m_flag &= ~MNEW;
mp->m_flag |= MSTATUS;
}
if (mp->m_flag & MSTATUS)
anystat++;
if ((mp->m_flag & MTOUCH) == 0)
mp->m_flag |= MPRESERVE;
if ((mp->m_flag & nohold) == 0)
mp->m_flag |= holdbit;
}
modify = 0;
if (Tflag != NOSTR) {
if ((readstat = fopen(Tflag, "w")) == NULL)
Tflag = NOSTR;
}
for (c = 0, p = 0, mp = &message[0]; mp < &message[msgCount]; mp++) {
if (mp->m_flag & MBOX)
c++;
if (mp->m_flag & MPRESERVE)
p++;
if (mp->m_flag & MODIFY)
modify++;
if (Tflag != NOSTR && (mp->m_flag & (MREAD|MDELETED)) != 0) {
id = hfield("article-id", mp);
if (id != NOSTR)
fprintf(readstat, "%s\n", id);
}
}
if (Tflag != NOSTR)
fclose(readstat);
if (p == msgCount && !modify && !anystat) {
if (p == 1)
printf("Held 1 message in %s\n", mailname);
else
printf("Held %2d messages in %s\n", p, mailname);
fclose(fbuf);
return;
}
if (c == 0) {
if (p != 0) {
writeback(rbuf);
fclose(fbuf);
return;
}
goto cream;
}
/*
* Create another temporary file and copy user's mbox file
* darin. If there is no mbox, copy nothing.
* If he has specified "append" don't copy his mailbox,
* just copy saveable entries at the end.
*/
mcount = c;
if (value("append") == NOSTR) {
if ((obuf = fopen(tempQuit, "w")) == NULL) {
perror(tempQuit);
fclose(fbuf);
return;
}
if ((ibuf = fopen(tempQuit, "r")) == NULL) {
perror(tempQuit);
remove(tempQuit);
fclose(obuf);
fclose(fbuf);
return;
}
remove(tempQuit);
if ((abuf = fopen(mbox, "r")) != NULL) {
while ((c = getc(abuf)) != EOF)
putc(c, obuf);
fclose(abuf);
}
if (ferror(obuf)) {
perror(tempQuit);
fclose(ibuf);
fclose(obuf);
fclose(fbuf);
return;
}
fclose(obuf);
close(creat(mbox, 0600));
if ((obuf = fopen(mbox, "r+")) == NULL) {
perror(mbox);
fclose(ibuf);
fclose(fbuf);
return;
}
}
if (value("append") != NOSTR) {
if ((obuf = fopen(mbox, "a")) == NULL) {
perror(mbox);
fclose(fbuf);
return;
}
fchmod(fileno(obuf), 0600);
}
for (mp = &message[0]; mp < &message[msgCount]; mp++)
if (mp->m_flag & MBOX)
if (send(mp, obuf, 0) < 0) {
perror(mbox);
fclose(ibuf);
fclose(obuf);
fclose(fbuf);
return;
}
/*
* Copy the user's old mbox contents back
* to the end of the stuff we just saved.
* If we are appending, this is unnecessary.
*/
if (value("append") == NOSTR) {
rewind(ibuf);
c = getc(ibuf);
while (c != EOF) {
putc(c, obuf);
if (ferror(obuf))
break;
c = getc(ibuf);
}
fclose(ibuf);
fflush(obuf);
}
trunc(obuf);
if (ferror(obuf)) {
perror(mbox);
fclose(obuf);
fclose(fbuf);
return;
}
fclose(obuf);
if (mcount == 1)
printf("Saved 1 message in mbox\n");
else
printf("Saved %d messages in mbox\n", mcount);
/*
* Now we are ready to copy back preserved files to
* the system mailbox, if any were requested.
*/
if (p != 0) {
writeback(rbuf);
fclose(fbuf);
return;
}
/*
* Finally, remove his /usr/mail file.
* If new mail has arrived, copy it back.
*/
cream:
if (rbuf != NULL) {
abuf = fopen(mailname, "r+");
if (abuf == NULL)
goto newmail;
while ((c = getc(rbuf)) != EOF)
putc(c, abuf);
fclose(rbuf);
trunc(abuf);
fclose(abuf);
alter(mailname);
fclose(fbuf);
return;
}
demail();
fclose(fbuf);
return;
newmail:
printf("Thou hast new mail.\n");
if (fbuf != NULL)
fclose(fbuf);
}
int main(int argc, char *argv[])
{
InstInfo curInst;
//InstInfo* instArray[4];
//int top = 0;
// InstInfo *f = &curInst;
int instnum = 0;
int maxpc;
FILE *program;
int i;
for (i =0 ; i < 32; i++) {
regfile[i]=0;
}
if (argc != 2)
{
printf("Usage: sim filename\n");
exit(0);
}
maxpc = load(argv[1]) - 1;
InstInfo* n; n= malloc(sizeof(*n));
InstInfo* f; f=malloc(sizeof(*f));
InstInfo* d; d=malloc(sizeof(*d));
InstInfo* x; x=malloc(sizeof(*x));
InstInfo* m; m=malloc(sizeof(*m));
InstInfo* w; w=malloc(sizeof(*w));
fetch(f);
decode(f);
i = 0;
InstInfo* nop = malloc(sizeof(*nop));
nop->inst = 31;
int nopnop=0;
int MAXPC4 = maxpc + 4;
int k = 0;
int zapzap=0;
int setPC;
while (i<=MAXPC4) {
writeback(w);
memory(m);
execute(x);
decode(d);
setPCWithInfo(w);
printP2(f,d,x,m,w,instnum++);
printf("-------------------------------------------------\n");
//printf("PC %d \n", pc);
int memoryResult = m->memout;//w->memout;
int executeResult=x->aluout;
int forwardA=0, forwardB=0;
int xRegWrite = x->signals.rw;
int mRegWrite = m->signals.rw;
int wRegWrite = m->signals.rw;
int wrd = w->destreg;
int mrd = m->destreg;
int xrd = x->destreg;
int drs = d->sourcereg;
int drt = d->targetreg;
int dmr = x->signals.mr;
int drd = x->destreg;
int frs = d->sourcereg;
int frt = d->targetreg;
int dBType = f->signals.btype;
int zapped;
int zapper;
//if (zapzap == 2) {
//}
if (zapzap == 1) {
// zapzap++; }
// if (zapzap == 2) {
// *w = *m;
//*m = *x;
//*x =*d;
//*d = *f;
printf("IN XAAPZAP\n");
zapzap=0;
zapped = 1;
}
// int zapped = 1;
int guessedNotTaken = pc+1;
if (dBType == 1 || dBType ==2 || dBType == 3) {
if (guessedNotTaken != d->aluout) {
zapzap=1;
//zapped = 0;
int setPC = d->aluout;
//setPCWithInfo(d);
}
}
printf("PC %d , setPC: %d \n", pc, setPC);
printf("ZAPZAP %d btype %d \n",zapzap, dBType);//zapzap);
// int k = 0;
//printf("memorytest %d\n", memoryResult);
if (dmr == 1 && ( drd == frs || drd ==frt) ) {
nopnop = 1;
//printf("SETTING NOPNOP! %d\n", nopnop);
}
else {
//printf("NOT SETTING NOPNOP %d\n", nopnop);
}
if (wRegWrite == 1 && wrd != 0 && (wrd == drs)) {
forwardA=3;
//printf("3a %d \n", regfile[wrd]);
}
else {
if (mRegWrite == 1 && mrd !=0 && (mrd == drs)) {
forwardA= 1;
//printf("1a %d \n", memoryResult);//regfile[mrd]);
}
else {
if (xRegWrite == 1 && xrd !=0 && (xrd==drs)) {
//printf("2a %d \n", regfile[xrd]);
forwardA = 2;
}
}
}
if (wRegWrite == 1 && wrd != 0 && (wrd == drt)) {
forwardB=3;
//printf("3b %d \n", regfile[wrd]);
}
else {
if (mRegWrite == 1 && mrd !=0 && (mrd == drt)) {
//printf("1b %d \n", regfile[mrd]);
forwardB= 1;
}
else {
if (xRegWrite == 1 && xrd !=0 && (xrd==drt)) {
forwardB = 2;
//printf("2b %d \n", regfile[xrd]);
}
}
}
switch (forwardA) {
case 2: //from execute
d->input1 = executeResult;
break;
case 1: //from mem
d->input1 = m->memout;//memoryResult;
break;
case 3:
d->input1 = w->destdata;
break;
default:
break;
}
// printf("D %d input1: %d\n", forwardA, d->input1);
switch (forwardB) {
case 2:
d->input2 = executeResult;
break;
case 1:
d->input2 = memoryResult;
break;
case 3:
d->input2 = w->destdata;
break;
default:
break;
}
i++;
if (nopnop== 0) {// && zapped != 1) {
printf("NO NOP!\n");
// if (zapzap==0)
*w=*m; *m=*x; *x=*d; *d=*f;
if (zapped ==1) {
d=nop;
zapper = 1;
}
}
else {
//printf("NO NOP\n");
*w = *m;
*m = *x;
*x = *nop;
//*w=*m; *m=*x; *x=*d; *d=*f;
i--;
k++;
pc--;
}
if (i <= maxpc){// && dBType ==0) {
fetch(f);
decode(f);
}
else {
*f = *n;
}
nopnop = 0;
//if (zapzap == 1 and zapped = 1) {
zapped=0;
//}
}
printf("Cycles: %d\nInstructions Executed: %d\n", i+k, maxpc+1);
free(d); free(x); free(m); free(w); free(n); free(f);
exit(0);
}
/*ARGSUSED*/
void
trap(struct frame *fp, int type, unsigned code, unsigned v)
{
extern char fubail[], subail[];
struct lwp *l;
struct proc *p;
struct pcb *pcb;
void *onfault;
ksiginfo_t ksi;
int s;
int rv;
u_quad_t sticks = 0 /* XXX initialiser works around compiler bug */;
static int panicking __diagused;
curcpu()->ci_data.cpu_ntrap++;
l = curlwp;
p = l->l_proc;
pcb = lwp_getpcb(l);
KSI_INIT_TRAP(&ksi);
ksi.ksi_trap = type & ~T_USER;
if (USERMODE(fp->f_sr)) {
type |= T_USER;
sticks = p->p_sticks;
l->l_md.md_regs = fp->f_regs;
LWP_CACHE_CREDS(l, p);
}
switch (type) {
default:
dopanic:
/*
* Let the kernel debugger see the trap frame that
* caused us to panic. This is a convenience so
* one can see registers at the point of failure.
*/
s = splhigh();
panicking = 1;
printf("trap type %d, code = 0x%x, v = 0x%x\n", type, code, v);
printf("%s program counter = 0x%x\n",
(type & T_USER) ? "user" : "kernel", fp->f_pc);
#ifdef KGDB
/* If connected, step or cont returns 1 */
if (kgdb_trap(type, (db_regs_t *)fp))
goto kgdb_cont;
#endif
#ifdef DDB
(void)kdb_trap(type, (db_regs_t *)fp);
#endif
#ifdef KGDB
kgdb_cont:
#endif
splx(s);
if (panicstr) {
printf("trap during panic!\n");
#ifdef DEBUG
/* XXX should be a machine-dependent hook */
printf("(press a key)\n"); (void)cngetc();
#endif
}
regdump((struct trapframe *)fp, 128);
type &= ~T_USER;
if ((u_int)type < trap_types)
panic(trap_type[type]);
panic("trap");
case T_BUSERR: /* kernel bus error */
onfault = pcb->pcb_onfault;
if (onfault == NULL)
goto dopanic;
rv = EFAULT;
/* FALLTHROUGH */
copyfault:
/*
* If we have arranged to catch this fault in any of the
* copy to/from user space routines, set PC to return to
* indicated location and set flag informing buserror code
* that it may need to clean up stack frame.
*/
fp->f_stackadj = exframesize[fp->f_format];
fp->f_format = fp->f_vector = 0;
fp->f_pc = (int)onfault;
fp->f_regs[D0] = rv;
return;
case T_BUSERR|T_USER: /* bus error */
case T_ADDRERR|T_USER: /* address error */
ksi.ksi_addr = (void *)v;
ksi.ksi_signo = SIGBUS;
ksi.ksi_code = (type == (T_BUSERR|T_USER)) ?
BUS_OBJERR : BUS_ADRERR;
break;
case T_COPERR: /* kernel coprocessor violation */
case T_FMTERR|T_USER: /* do all RTE errors come in as T_USER? */
case T_FMTERR: /* ...just in case... */
/*
* The user has most likely trashed the RTE or FP state info
* in the stack frame of a signal handler.
*/
printf("pid %d: kernel %s exception\n", p->p_pid,
type==T_COPERR ? "coprocessor" : "format");
type |= T_USER;
mutex_enter(p->p_lock);
SIGACTION(p, SIGILL).sa_handler = SIG_DFL;
sigdelset(&p->p_sigctx.ps_sigignore, SIGILL);
sigdelset(&p->p_sigctx.ps_sigcatch, SIGILL);
sigdelset(&l->l_sigmask, SIGILL);
mutex_exit(p->p_lock);
ksi.ksi_signo = SIGILL;
ksi.ksi_addr = (void *)(int)fp->f_format;
/* XXX was ILL_RESAD_FAULT */
ksi.ksi_code = (type == T_COPERR) ?
ILL_COPROC : ILL_ILLOPC;
break;
case T_COPERR|T_USER: /* user coprocessor violation */
/* What is a proper response here? */
ksi.ksi_signo = SIGFPE;
ksi.ksi_code = FPE_FLTINV;
break;
case T_FPERR|T_USER: /* 68881 exceptions */
/*
* We pass along the 68881 status register which locore stashed
* in code for us.
*/
ksi.ksi_signo = SIGFPE;
ksi.ksi_code = fpsr2siginfocode(code);
break;
#ifdef M68040
case T_FPEMULI|T_USER: /* unimplemented FP instruction */
case T_FPEMULD|T_USER: /* unimplemented FP data type */
/* XXX need to FSAVE */
printf("pid %d(%s): unimplemented FP %s at %x (EA %x)\n",
p->p_pid, p->p_comm,
fp->f_format == 2 ? "instruction" : "data type",
fp->f_pc, fp->f_fmt2.f_iaddr);
/* XXX need to FRESTORE */
ksi.ksi_signo = SIGFPE;
ksi.ksi_code = FPE_FLTINV;
break;
#endif
case T_ILLINST|T_USER: /* illegal instruction fault */
case T_PRIVINST|T_USER: /* privileged instruction fault */
ksi.ksi_addr = (void *)(int)fp->f_format;
/* XXX was ILL_PRIVIN_FAULT */
ksi.ksi_signo = SIGILL;
ksi.ksi_code = (type == (T_PRIVINST|T_USER)) ?
ILL_PRVOPC : ILL_ILLOPC;
break;
case T_ZERODIV|T_USER: /* Divide by zero */
ksi.ksi_addr = (void *)(int)fp->f_format;
/* XXX was FPE_INTDIV_TRAP */
ksi.ksi_signo = SIGFPE;
ksi.ksi_code = FPE_FLTDIV;
break;
case T_CHKINST|T_USER: /* CHK instruction trap */
ksi.ksi_addr = (void *)(int)fp->f_format;
/* XXX was FPE_SUBRNG_TRAP */
ksi.ksi_signo = SIGFPE;
break;
case T_TRAPVINST|T_USER: /* TRAPV instruction trap */
ksi.ksi_addr = (void *)(int)fp->f_format;
/* XXX was FPE_INTOVF_TRAP */
ksi.ksi_signo = SIGFPE;
break;
/*
* XXX: Trace traps are a nightmare.
*
* HP-UX uses trap #1 for breakpoints,
* NetBSD/m68k uses trap #2,
* SUN 3.x uses trap #15,
* DDB and KGDB uses trap #15 (for kernel breakpoints;
* handled elsewhere).
*
* NetBSD and HP-UX traps both get mapped by locore.s into T_TRACE.
* SUN 3.x traps get passed through as T_TRAP15 and are not really
* supported yet.
*
* XXX: We should never get kernel-mode T_TRAP15
* XXX: because locore.s now gives them special treatment.
*/
case T_TRAP15: /* kernel breakpoint */
#ifdef DEBUG
printf("unexpected kernel trace trap, type = %d\n", type);
printf("program counter = 0x%x\n", fp->f_pc);
#endif
fp->f_sr &= ~PSL_T;
return;
case T_TRACE|T_USER: /* user trace trap */
#ifdef COMPAT_SUNOS
/*
* SunOS uses Trap #2 for a "CPU cache flush".
* Just flush the on-chip caches and return.
*/
if (p->p_emul == &emul_sunos) {
ICIA();
DCIU();
return;
}
#endif
/* FALLTHROUGH */
case T_TRACE: /* tracing a trap instruction */
case T_TRAP15|T_USER: /* SUN user trace trap */
fp->f_sr &= ~PSL_T;
ksi.ksi_signo = SIGTRAP;
break;
case T_ASTFLT: /* system async trap, cannot happen */
goto dopanic;
case T_ASTFLT|T_USER: /* user async trap */
astpending = 0;
/*
* We check for software interrupts first. This is because
* they are at a higher level than ASTs, and on a VAX would
* interrupt the AST. We assume that if we are processing
* an AST that we must be at IPL0 so we don't bother to
* check. Note that we ensure that we are at least at SIR
* IPL while processing the SIR.
*/
spl1();
/* fall into... */
case T_SSIR: /* software interrupt */
case T_SSIR|T_USER:
/*
* If this was not an AST trap, we are all done.
*/
if (type != (T_ASTFLT|T_USER)) {
curcpu()->ci_data.cpu_ntrap--;
return;
}
spl0();
if (l->l_pflag & LP_OWEUPC) {
l->l_pflag &= ~LP_OWEUPC;
ADDUPROF(l);
}
if (curcpu()->ci_want_resched)
preempt();
goto out;
case T_MMUFLT: /* kernel mode page fault */
/*
* If we were doing profiling ticks or other user mode
* stuff from interrupt code, Just Say No.
*/
onfault = pcb->pcb_onfault;
if (onfault == fubail || onfault == subail) {
rv = EFAULT;
goto copyfault;
}
/* fall into ... */
case T_MMUFLT|T_USER: /* page fault */
{
vaddr_t va;
struct vmspace *vm = p->p_vmspace;
struct vm_map *map;
vm_prot_t ftype;
extern struct vm_map *kernel_map;
onfault = pcb->pcb_onfault;
#ifdef DEBUG
if ((mmudebug & MDB_WBFOLLOW) || MDB_ISPID(p->p_pid))
printf("trap: T_MMUFLT pid=%d, code=%x, v=%x, pc=%x, sr=%x\n",
p->p_pid, code, v, fp->f_pc, fp->f_sr);
#endif
/*
* It is only a kernel address space fault iff:
* 1. (type & T_USER) == 0 and
* 2. pcb_onfault not set or
* 3. pcb_onfault set but supervisor space data fault
* The last can occur during an exec() copyin where the
* argument space is lazy-allocated.
*/
if ((type & T_USER) == 0 && (onfault == NULL || KDFAULT(code)))
map = kernel_map;
else {
map = vm ? &vm->vm_map : kernel_map;
}
if (WRFAULT(code))
ftype = VM_PROT_WRITE;
else
ftype = VM_PROT_READ;
va = trunc_page((vaddr_t)v);
if (map == kernel_map && va == 0) {
printf("trap: bad kernel %s access at 0x%x\n",
(ftype & VM_PROT_WRITE) ? "read/write" :
"read", v);
goto dopanic;
}
#ifdef DIAGNOSTIC
if (interrupt_depth && !panicking) {
printf("trap: calling uvm_fault() from interrupt!\n");
goto dopanic;
}
#endif
pcb->pcb_onfault = NULL;
rv = uvm_fault(map, va, ftype);
pcb->pcb_onfault = onfault;
#ifdef DEBUG
if (rv && MDB_ISPID(p->p_pid))
printf("uvm_fault(%p, 0x%lx, 0x%x) -> 0x%x\n",
map, va, ftype, rv);
#endif
/*
* If this was a stack access we keep track of the maximum
* accessed stack size. Also, if vm_fault gets a protection
* failure it is due to accessing the stack region outside
* the current limit and we need to reflect that as an access
* error.
*/
if (rv == 0) {
if (map != kernel_map && (void *)va >= vm->vm_maxsaddr)
uvm_grow(p, va);
if (type == T_MMUFLT) {
if (ucas_ras_check(&fp->F_t)) {
return;
}
#ifdef M68040
if (cputype == CPU_68040)
(void) writeback(fp, 1);
#endif
return;
}
goto out;
}
if (rv == EACCES) {
ksi.ksi_code = SEGV_ACCERR;
rv = EFAULT;
} else
ksi.ksi_code = SEGV_MAPERR;
if (type == T_MMUFLT) {
if (onfault)
goto copyfault;
printf("uvm_fault(%p, 0x%lx, 0x%x) -> 0x%x\n",
map, va, ftype, rv);
printf(" type %x, code [mmu,,ssw]: %x\n",
type, code);
goto dopanic;
}
ksi.ksi_addr = (void *)v;
switch (rv) {
case ENOMEM:
printf("UVM: pid %d (%s), uid %d killed: out of swap\n",
p->p_pid, p->p_comm,
l->l_cred ?
kauth_cred_geteuid(l->l_cred) : -1);
ksi.ksi_signo = SIGKILL;
break;
case EINVAL:
ksi.ksi_signo = SIGBUS;
ksi.ksi_code = BUS_ADRERR;
break;
case EACCES:
ksi.ksi_signo = SIGSEGV;
ksi.ksi_code = SEGV_ACCERR;
break;
default:
ksi.ksi_signo = SIGSEGV;
ksi.ksi_code = SEGV_MAPERR;
break;
}
break;
}
}
trapsignal(l, &ksi);
if ((type & T_USER) == 0)
return;
out:
userret(l, fp, sticks, v, 1);
}
/*ARGSUSED*/
void
trap(struct frame *fp, int type, u_int code, u_int v)
{
extern char fubail[], subail[];
struct lwp *l;
struct proc *p;
ksiginfo_t ksi;
int s;
u_quad_t sticks;
uvmexp.traps++;
l = curlwp;
KSI_INIT_TRAP(&ksi);
ksi.ksi_trap = type & ~T_USER;
p = l->l_proc;
if (USERMODE(fp->f_sr)) {
type |= T_USER;
sticks = p->p_sticks;
l->l_md.md_regs = fp->f_regs;
LWP_CACHE_CREDS(l, p);
} else
sticks = 0;
#ifdef DIAGNOSTIC
if (l->l_addr == NULL)
panic("trap: type 0x%x, code 0x%x, v 0x%x -- no pcb",
type, code, v);
#endif
switch (type) {
default:
dopanic:
printf("trap type %d, code = 0x%x, v = 0x%x\n", type, code, v);
printf("%s program counter = 0x%x\n",
(type & T_USER) ? "user" : "kernel", fp->f_pc);
/*
* Let the kernel debugger see the trap frame that
* caused us to panic. This is a convenience so
* one can see registers at the point of failure.
*/
s = splhigh();
#ifdef KGDB
/* If connected, step or cont returns 1 */
if (kgdb_trap(type, (db_regs_t *)fp))
goto kgdb_cont;
#endif
#ifdef DDB
(void)kdb_trap(type, (db_regs_t *)fp);
#endif
#ifdef KGDB
kgdb_cont:
#endif
splx(s);
if (panicstr) {
printf("trap during panic!\n");
#ifdef DEBUG
/* XXX should be a machine-dependent hook */
printf("(press a key)\n"); (void)cngetc();
#endif
}
regdump((struct trapframe *)fp, 128);
type &= ~T_USER;
if ((u_int)type < trap_types)
panic(trap_type[type]);
panic("trap");
case T_BUSERR: /* Kernel bus error */
if (!l->l_addr->u_pcb.pcb_onfault)
goto dopanic;
/*
* If we have arranged to catch this fault in any of the
* copy to/from user space routines, set PC to return to
* indicated location and set flag informing buserror code
* that it may need to clean up stack frame.
*/
copyfault:
fp->f_stackadj = exframesize[fp->f_format];
fp->f_format = fp->f_vector = 0;
fp->f_pc = (int)l->l_addr->u_pcb.pcb_onfault;
return;
case T_BUSERR|T_USER: /* Bus error */
case T_ADDRERR|T_USER: /* Address error */
ksi.ksi_addr = (void *)v;
ksi.ksi_signo = SIGBUS;
ksi.ksi_code = (type == (T_BUSERR|T_USER)) ?
BUS_OBJERR : BUS_ADRERR;
break;
case T_ILLINST|T_USER: /* Illegal instruction fault */
case T_PRIVINST|T_USER: /* Privileged instruction fault */
ksi.ksi_addr = (void *)(int)fp->f_format;
/* XXX was ILL_PRIVIN_FAULT */
ksi.ksi_signo = SIGILL;
ksi.ksi_code = (type == (T_PRIVINST|T_USER)) ?
ILL_PRVOPC : ILL_ILLOPC;
break;
/*
* divde by zero, CHK/TRAPV inst
*/
case T_ZERODIV|T_USER: /* Divide by zero trap */
ksi.ksi_code = FPE_FLTDIV;
case T_CHKINST|T_USER: /* CHK instruction trap */
case T_TRAPVINST|T_USER: /* TRAPV instruction trap */
ksi.ksi_addr = (void *)(int)fp->f_format;
ksi.ksi_signo = SIGFPE;
break;
/*
* User coprocessor violation
*/
case T_COPERR|T_USER:
/* XXX What is a proper response here? */
ksi.ksi_signo = SIGFPE;
ksi.ksi_code = FPE_FLTINV;
break;
/*
* 6888x exceptions
*/
case T_FPERR|T_USER:
/*
* We pass along the 68881 status register which locore
* stashed in code for us. Note that there is a
* possibility that the bit pattern of this register
* will conflict with one of the FPE_* codes defined
* in signal.h. Fortunately for us, the only such
* codes we use are all in the range 1-7 and the low
* 3 bits of the status register are defined as 0 so
* there is no clash.
*/
ksi.ksi_signo = SIGFPE;
ksi.ksi_addr = (void *)code;
break;
/*
* FPU faults in supervisor mode.
*/
case T_ILLINST: /* fnop generates this, apparently. */
case T_FPEMULI:
case T_FPEMULD: {
extern label_t *nofault;
if (nofault) /* If we're probing. */
longjmp(nofault);
if (type == T_ILLINST)
printf("Kernel Illegal Instruction trap.\n");
else
printf("Kernel FPU trap.\n");
goto dopanic;
}
/*
* Unimplemented FPU instructions/datatypes.
*/
case T_FPEMULI|T_USER:
case T_FPEMULD|T_USER:
#ifdef FPU_EMULATE
if (fpu_emulate(fp, &l->l_addr->u_pcb.pcb_fpregs,
&ksi) == 0)
; /* XXX - Deal with tracing? (fp->f_sr & PSL_T) */
#else
uprintf("pid %d killed: no floating point support.\n",
p->p_pid);
ksi.ksi_signo = SIGILL;
ksi.ksi_code = ILL_ILLOPC;
#endif
break;
case T_COPERR: /* Kernel coprocessor violation */
case T_FMTERR: /* Kernel format error */
case T_FMTERR|T_USER: /* User format error */
/*
* The user has most likely trashed the RTE or FP state info
* in the stack frame of a signal handler.
*/
printf("pid %d: kernel %s exception\n", p->p_pid,
type==T_COPERR ? "coprocessor" : "format");
type |= T_USER;
mutex_enter(p->p_lock);
SIGACTION(p, SIGILL).sa_handler = SIG_DFL;
sigdelset(&p->p_sigctx.ps_sigignore, SIGILL);
sigdelset(&p->p_sigctx.ps_sigcatch, SIGILL);
sigdelset(&l->l_sigmask, SIGILL);
mutex_exit(p->p_lock);
ksi.ksi_signo = SIGILL;
ksi.ksi_addr = (void *)(int)fp->f_format;
/* XXX was ILL_RESAD_FAULT */
ksi.ksi_code = (type == T_COPERR) ?
ILL_COPROC : ILL_ILLOPC;
break;
/*
* XXX: Trace traps are a nightmare.
*
* HP-UX uses trap #1 for breakpoints,
* NetBSD/m68k uses trap #2,
* SUN 3.x uses trap #15,
* DDB and KGDB uses trap #15 (for kernel breakpoints;
* handled elsewhere).
*
* NetBSD and HP-UX traps both get mapped by locore.s into T_TRACE.
* SUN 3.x traps get passed through as T_TRAP15 and are not really
* supported yet.
*
* XXX: We should never get kernel-mode T_TRAP15 because
* XXX: locore.s now gives it special treatment.
*/
case T_TRAP15: /* SUN trace trap */
#ifdef DEBUG
printf("unexpected kernel trace trap, type = %d\n", type);
printf("program counter = 0x%x\n", fp->f_pc);
#endif
fp->f_sr &= ~PSL_T;
ksi.ksi_signo = SIGTRAP;
break;
case T_TRACE|T_USER: /* user trace trap */
#ifdef COMPAT_SUNOS
/*
* SunOS uses Trap #2 for a "CPU cache flush".
* Just flush the on-chip caches and return.
*/
if (p->p_emul == &emul_sunos) {
ICIA();
DCIU();
return;
}
#endif
/* FALLTHROUGH */
case T_TRACE: /* tracing a trap instruction */
case T_TRAP15|T_USER: /* SUN user trace trap */
fp->f_sr &= ~PSL_T;
ksi.ksi_signo = SIGTRAP;
break;
case T_ASTFLT: /* System async trap, cannot happen */
goto dopanic;
case T_ASTFLT|T_USER: /* User async trap. */
astpending = 0;
/*
* We check for software interrupts first. This is because
* they are at a higher level than ASTs, and on a VAX would
* interrupt the AST. We assume that if we are processing
* an AST that we must be at IPL0 so we don't bother to
* check. Note that we ensure that we are at least at SIR
* IPL while processing the SIR.
*/
spl1();
/* fall into... */
case T_SSIR: /* Software interrupt */
case T_SSIR|T_USER:
/*
* If this was not an AST trap, we are all done.
*/
if (type != (T_ASTFLT|T_USER)) {
uvmexp.traps--;
return;
}
spl0();
if (l->l_pflag & LP_OWEUPC) {
l->l_pflag &= ~LP_OWEUPC;
ADDUPROF(l);
}
if (curcpu()->ci_want_resched)
preempt();
goto out;
case T_MMUFLT: /* Kernel mode page fault */
/*
* If we were doing profiling ticks or other user mode
* stuff from interrupt code, Just Say No.
*/
if (l->l_addr->u_pcb.pcb_onfault == fubail ||
l->l_addr->u_pcb.pcb_onfault == subail)
goto copyfault;
/* fall into... */
case T_MMUFLT|T_USER: /* page fault */
{
vaddr_t va;
struct vmspace *vm = p->p_vmspace;
struct vm_map *map;
int rv;
vm_prot_t ftype;
extern struct vm_map *kernel_map;
#ifdef DEBUG
if ((mmudebug & MDB_WBFOLLOW) || MDB_ISPID(p->p_pid))
printf("trap: T_MMUFLT pid=%d, code=%x, v=%x, pc=%x, sr=%x\n",
p->p_pid, code, v, fp->f_pc, fp->f_sr);
#endif
/*
* It is only a kernel address space fault iff:
* 1. (type & T_USER) == 0 and
* 2. pcb_onfault not set or
* 3. pcb_onfault set but supervisor data fault
* The last can occur during an exec() copyin where the
* argument space is lazy-allocated.
*/
if (type == T_MMUFLT &&
(!l->l_addr->u_pcb.pcb_onfault || KDFAULT(code)))
map = kernel_map;
else {
map = vm ? &vm->vm_map : kernel_map;
if ((l->l_flag & LW_SA)
&& (~l->l_pflag & LP_SA_NOBLOCK)) {
l->l_savp->savp_faultaddr = (vaddr_t)v;
l->l_pflag |= LP_SA_PAGEFAULT;
}
}
if (WRFAULT(code))
ftype = VM_PROT_WRITE;
else
ftype = VM_PROT_READ;
va = trunc_page((vaddr_t)v);
#ifdef DEBUG
if (map == kernel_map && va == 0) {
printf("trap: bad kernel access at %x\n", v);
goto dopanic;
}
#endif
rv = uvm_fault(map, va, ftype);
#ifdef DEBUG
if (rv && MDB_ISPID(p->p_pid))
printf("uvm_fault(%p, 0x%lx, 0x%x) -> 0x%x\n",
map, va, ftype, rv);
#endif
/*
* If this was a stack access, we keep track of the maximum
* accessed stack size. Also, if vm_fault gets a protection
* failure, it is due to accessing the stack region outside
* the current limit and we need to reflect that as an access
* error.
*/
if (rv == 0) {
if (map != kernel_map && (void *)va >= vm->vm_maxsaddr)
uvm_grow(p, va);
if (type == T_MMUFLT) {
#if defined(M68040)
if (mmutype == MMU_68040)
(void)writeback(fp, 1);
#endif
return;
}
l->l_pflag &= ~LP_SA_PAGEFAULT;
goto out;
}
if (rv == EACCES) {
ksi.ksi_code = SEGV_ACCERR;
rv = EFAULT;
} else
ksi.ksi_code = SEGV_MAPERR;
if (type == T_MMUFLT) {
if (l->l_addr->u_pcb.pcb_onfault)
goto copyfault;
printf("uvm_fault(%p, 0x%lx, 0x%x) -> 0x%x\n",
map, va, ftype, rv);
printf(" type %x, code [mmu,,ssw]: %x\n",
type, code);
goto dopanic;
}
l->l_pflag &= ~LP_SA_PAGEFAULT;
ksi.ksi_addr = (void *)v;
if (rv == ENOMEM) {
printf("UVM: pid %d (%s), uid %d killed: out of swap\n",
p->p_pid, p->p_comm,
l->l_cred ?
kauth_cred_geteuid(l->l_cred) : -1);
ksi.ksi_signo = SIGKILL;
} else {
ksi.ksi_signo = SIGSEGV;
}
break;
}
}
if (ksi.ksi_signo)
trapsignal(l, &ksi);
if ((type & T_USER) == 0)
return;
out:
userret(l, fp, sticks, v, 1);
}
