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libmach_amd64: refresh darwin thread list each time we get asked.

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R=r
DELTA=1  (1 added, 0 deleted, 0 changed)
OCL=15982
CL=15993
This commit is contained in:
Russ Cox 2008-09-26 14:10:33 -07:00
parent 72154b042f
commit 2662aad7b7
1 changed files with 19 additions and 18 deletions
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37
src/libmach_amd64/darwin.c
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@ -139,7 +139,7 @@ static int
me(kern_return_t r)
{
int i;
if(r == 0)
return 0;
@ -217,7 +217,7 @@ addpid(int pid, int force)
pthread_cond_init(&cond, nil);
first = 0;
}
if(!force){
for(i=0; i<nthr; i++)
if(thr[i].pid == pid)
@ -269,7 +269,7 @@ idtotable(int id)
{
if(id >= 0)
return addpid(id, 1);
id = -(id+1);
if(id >= nthr)
return nil;
@ -280,7 +280,7 @@ static int
idtopid(int id)
{
Thread *t;
if((t = idtotable(id)) == nil)
return -1;
return t->pid;
@ -290,7 +290,7 @@ static mach_port_t
idtotask(int id)
{
Thread *t;
if((t = idtotable(id)) == nil)
return -1;
return t->task;
@ -300,7 +300,7 @@ static mach_port_t
idtothread(int id)
{
Thread *t;
if((t = idtotable(id)) == nil)
return -1;
return t->thread;
@ -338,11 +338,12 @@ procthreadpids(int id, int **thread)
Thread *t;
int i, n, pid;
int *out;
t = idtotable(id);
if(t == nil)
return -1;
pid = t->pid;
addpid(pid, 1); // force refresh of thread list
n = 0;
for(i=0; i<nthr; i++)
if(thr[i].pid == pid)
@ -390,7 +391,7 @@ machsegrw(Map *map, Seg *seg, uvlong addr, void *v, uint n, int isr)
uintptr nn;
mach_port_t task;
int r;
task = idtotask(map->pid);
if(task == -1)
return -1;
@ -493,7 +494,7 @@ machregrw(Map *map, Seg *seg, uvlong addr, void *v, uint n, int isr)
werrstr("no such id");
return -1;
}
if((reg = go2darwin(addr)) < 0 || reg+n > sizeof u){
if(isr){
memset(v, 0, n);
@ -526,7 +527,7 @@ machregrw(Map *map, Seg *seg, uvlong addr, void *v, uint n, int isr)
werrstr("thread_set_state: %r");
return -1;
}
if(me(thread_resume(thread)) < 0){
werrstr("thread_resume: %r");
return -1;
@ -583,7 +584,7 @@ threadstart(Thread *t, int singlestep)
(thread_state_t)&regs,
x86_THREAD_STATE64_COUNT)) < 0)
return -1;
// Run.
n = sizeof info;
if(me(thread_info(t->thread, THREAD_BASIC_INFO, (thread_info_t)&info, &n)) < 0)
@ -630,12 +631,12 @@ havet:
if(ncode > nelem(t->code))
ncode = nelem(t->code);
memmove(t->code, code, ncode*sizeof t->code[0]);
// Synchronize with waitstop below.
pthread_mutex_lock(&mu);
pthread_cond_broadcast(&cond);
pthread_mutex_unlock(&mu);
// Suspend thread, so that we can look at it & restart it later.
if(me(thread_suspend(thread)) < 0)
fprint(2, "catch_exception_raise thread_suspend: %r\n");
@ -732,10 +733,10 @@ ctlproc(int id, char *msg)
return -1;
return waitstop(t);
}
if(strcmp(msg, "waitstop") == 0)
return waitstop(t);
// sysstop not available on OS X
werrstr("unknown control message");
@ -746,13 +747,13 @@ char*
procstatus(int id)
{
Thread *t;
if((t = idtotable(id)) == nil)
return "gone!";
if(threadstopped(t))
return "Stopped";
return "Running";
}