ref: fc77a2d3d384c1ee854deebd4f1a97e751d7eaa2
dir: /sys/lib/acid/thread/
include("/sys/src/libthread/sched." + objtype + ".acid");
defn labpc(l)
{
if objtype == "386" || objtype == "amd64" then
return longjmp;
return *(l+4);
}
defn labsp(l)
{
return *l;
}
defn labstk(l)
{
_stk(labpc(l), labsp(l), 0, 0);
}
defn lablstk(l)
{
_stk(labpc(l), labsp(l), 0, 1);
}
defn altfmt(A){
local i, s, yes;
complex Alt A;
s = "alt(";
s = s + "tag(*" + itoa(A.tag, "%x") + "=" + itoa(*A.tag, "%x") + ") ";
i = 0;
yes = 0;
while A.op != CHANEND && A.op != CHANNOBLK do{
if A.op != CHANNOP then{
if yes then s = s + " ";
s = s + itoa(i, "%d");
s = s + ":";
if A.op == CHANSND then s = s + "send";
if A.op == CHANRCV then s = s + "recv";
s = s + "(channel(";
s = s + itoa(A.c, "%x");
s = s + "))";
yes = 1;
}
i = i + 1;
A = (Alt)(A + sizeofAlt);
}
if A.op==CHANNOBLK then{
if yes then s = s + " ";
s = s + "noblock";
}
s = s + ")";
return s;
}
defn alt(A){
print(altfmt(A), "\n");
}
threadignsrc = {
"^/sys/src/libc",
"^/sys/src/libthread",
};
defn fnname(a){
local sym, s;
s = symbols;
while s do {
sym = head s;
if sym[2] == a then
return sym[0];
s = tail s;
}
if a == {} then
return "{}";
return itoa(a\X, "%x");
}
stkignorelist = {};
defn stkignore(s){
append stkignorelist, s;
}
defn threadstkline(T){
local ostk, stk, frame, pc, pc0, file, lastpc0, s, sym, i, stop;
if T.state == Running then{
pc = *PC;
stk = strace(*PC, *SP, linkreg(0));
}else{
pc = labpc(T.sched);
stk = strace(labpc(T.sched), labsp(T.sched), 0);
}
firstpc = pc;
lastpc0 = 0;
pc0 = 0;
stop = 0;
ostk = stk;
while stk && !stop do {
file = pcfile(pc);
if !regexp("^/sys/src/libc/", file)
&& !regexp("^/sys/src/libthread/", file)
&& match(file, stkignore)==-1 then
stop = 1;
else if stk[0][1] == 0xfefefefe then {
pc = ostk[0][1];
pc0 = ostk[1][0];
stop = 1;
}else{
lastpc0 = pc0;
frame = head stk;
stk = tail stk;
nextframe = head stk;
pc = frame[1];
pc0 = nextframe[0];
}
}
file = pcfile(pc);
s = file+":"+itoa(pcline(pc), "%d");
if pc0 != 0 then
s = s + " "+fnname(pc0);
return s;
}
defn threadfmt(T){
complex Thread T;
local A, yes, i, P, s;
P = (Proc)T.proc;
s = "t=(Thread)"+itoa(T, "%-10x")+" ";
if T.state == Running then
s = s + "Running ";
else if T.state == Ready then
s = s + "Ready ";
else if T.state == Rendezvous then
s = s + "Rendez ";
else
s = s + "Bad state "+itoa(T.state, "%x")+" ";
A = (Alt)T.alt;
if 1 then
s = s + threadstkline(T);
else if T.chan == Chanalt then
s = s + altfmt(T.alt);
else if T.chan == Chansend then
s = s + "send(Channel("+itoa(A.c, "%x")+"))";
else if T.chan == Chanrecv then
s = s + "recv(Channel("+itoa(A.c, "%x")+"))";
else
s = s + threadstkline(T);
if T.moribund == 1 then
s = s + " Moribund";
if T.cmdname != 0 then
s = s + " ["+*(T.cmdname\s)+"]";
return s;
}
defn thread(T){
print(threadfmt(T), "\n");
}
defn pthreads(P){
complex Proc P;
local T, Tq, mainpid;
mainpid = pid;
setproc(P.pid);
Tq = (Tqueue)P.threads;
T = (Thread)Tq.$head;
while T != 0 do{
print("\t");
thread(T);
T = T.nextt;
}
setproc(mainpid);
}
defn threads(){
local P;
P = (Proc)_threadpq.$head;
while P != 0 do{
if P != (Proc)_threadpq.$head then print("\n");
lproc(P);
P = P.next;
}
}
defn stacks(){
local P, mainpid;
mainpid = pid;
P = (Proc)_threadpq.$head;
while P != 0 do{
proc(P);
// setproc(P.pid);
// if P.thread==0 then{
// print("=== thread scheduler stack\n");
// stk();
// }
// print("threadstks(", P\X, ")\n");
threadstks(P);
P = P.next;
print("\n");
}
setproc(mainpid);
}
defn stacksizes(){
local P, T, Tq, top, sp, mainpid;
mainpid = pid;
P = (Proc)_threadpq.$head;
while P != 0 do{
P = (Proc)P;
Tq = (Tqueue)P.threads;
T = (Thread)Tq.$head;
while T != 0 do{
top = T.stk+T.stksize;
if T.state==Running then {
sp = *SP;
}else{
sp = *(T.sched);
}
sp = *(T.sched);
print(top-sp\D, " / ", T.stksize\D, "\n");
T = T.nextt;
}
P = P.next;
}
setproc(mainpid);
}
defn lproc(P){
proc(P);
pthreads(P);
}
defn threadstks(P){
complex Proc P;
local T, Tq, mainpid, pref, ign;
mainpid = pid;
pref = stkprefix;
stkprefix = pref+"\t\t";
ign = stkignore;
stkignore = {
"^/sys/src/libthread/",
"^/sys/src/libc/(386|arm|alpha|sparc|power|mips)/"
};
setproc(P.pid);
Tq = (Tqueue)P.threads;
T = (Thread)Tq.$head;
while T != 0 do{
// print("=============================\n");
// print(" thread(", T\X, ")\n");
print("\t");
thread(T);
threadstk(T);
T = T.nextt;
print("\n");
}
setproc(mainpid);
stkprefix = pref;
stkignore = ign;
}
defn proc(P){
complex Proc P;
print("p=(Proc)", itoa(P, "%-10x"), " pid ", P.pid\D, " ");
if P.thread==0 then
print(" Sched");
else
print(" Running");
print("\n");
}
defn procs(){
local P;
P = (Proc)_threadpq.$head;
while P != 0 do{
proc(P);
P = P.next;
}
}
defn threadlstk(T){
complex Thread T;
local P, mainpid;
P = (Proc)T.proc;
mainpid = pid;
setproc(P.pid);
if T.state == Running then{
lstk();
} else {
lablstk(T.sched);
}
setproc(mainpid);
}
defn threadstk(T){
complex Thread T;
local P, mainpid;
P = (Proc)T.proc;
mainpid = pid;
setproc(P.pid);
if T.state == Running then{
stk();
} else {
labstk(T.sched);
}
setproc(mainpid);
}
defn tqueue(Q) {
complex Tqueue Q;
while Q != 0 do {
print(Q.$head\X, " ");
Q = *(Q.$tail);
}
print("#\n");
}
defn channel(C) {
complex Channel C;
local i, p;
print("channel ", C\X);
if C.freed then {
print(" (moribund)");
}
print("\n");
print("\telementsize=", C.e\D, " buffersize=", C.s, "\n");
if C.s then {
print("\t", C.n\D, " values in channel:\n");
print("\t");
p = C.v+C.e*(C.f%C.s);
loop 1,C.n do {
if C.e==4 then {
print((*p)\X, " ");
}else {
print("data(", (*p)\X, ") ");
}
p = p+C.e;
if p == C.v+C.s*C.e then {
p = C.v;
}
}
}
print("\n");
print(C.nentry\D, " queue slots:\n");
i=0;
loop 1,C.nentry do {
if C.qentry[i] then
print("\t", altfmt(C.qentry[i]), "\n");
else
print("\t<empty>\n");
i=i+1;
}
}
print("/sys/lib/acid/thread");