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-rw-r--r--src/libthread/thread.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/libthread/thread.c b/src/libthread/thread.c
index 06230f53..731a68cb 100644
--- a/src/libthread/thread.c
+++ b/src/libthread/thread.c
@@ -91,7 +91,7 @@ threadstart(uint y, uint x)
z |= y;
t = (_Thread*)z;
-/*print("threadstart %p\n", v); */
+//print("threadstart sp=%p arg=%p startfn=%p t=%p\n", &t, t, t->startfn, t->startarg);
t->startfn(t->startarg);
/*print("threadexits %p\n", v); */
threadexits(nil);
@@ -114,17 +114,21 @@ threadalloc(void (*fn)(void*), void *arg, uint stack)
t->stk = (uchar*)(t+1);
t->stksize = stack;
t->id = incref(&threadidref);
+//print("fn=%p arg=%p\n", fn, arg);
t->startfn = fn;
t->startarg = arg;
+//print("makecontext sp=%p t=%p startfn=%p\n", (char*)t->stk+t->stksize, t, t->startfn);
/* do a reasonable initialization */
memset(&t->context.uc, 0, sizeof t->context.uc);
sigemptyset(&zero);
sigprocmask(SIG_BLOCK, &zero, &t->context.uc.uc_sigmask);
+//print("makecontext sp=%p t=%p startfn=%p\n", (char*)t->stk+t->stksize, t, t->startfn);
/* must initialize with current context */
if(getcontext(&t->context.uc) < 0)
sysfatal("threadalloc getcontext: %r");
+//print("makecontext sp=%p t=%p startfn=%p\n", (char*)t->stk+t->stksize, t, t->startfn);
/* call makecontext to do the real work. */
/* leave a few words open on both ends */
@@ -141,6 +145,7 @@ threadalloc(void (*fn)(void*), void *arg, uint stack)
* function that takes some number of word-sized variables,
* and on 64-bit machines pointers are bigger than words.
*/
+//print("makecontext sp=%p t=%p startfn=%p\n", (char*)t->stk+t->stksize, t, t->startfn);
z = (ulong)t;
y = z;
z >>= 16; /* hide undefined 32-bit shift from 32-bit compilers */