fix up clone signature to match the actual behavior. the new
__syncall_wait function allows a __synccall callback to wait for other
threads to continue without returning, so that it can resume action
after the caller finishes. this interface could be made significantly
more general/powerful with minimal effort, but i'll wait to do that
until it's actually useful for something.
#define UNLOCK(x) (*(volatile int *)(x)=0)
void __synccall(void (*)(void *), void *);
#define UNLOCK(x) (*(volatile int *)(x)=0)
void __synccall(void (*)(void *), void *);
+void __synccall_wait(void);
int __setxid(int, int, int, int);
extern char **__environ;
int __setxid(int, int, int, int);
extern char **__environ;
pthread_t __pthread_self_init(void);
pthread_t __pthread_self_init(void);
+int __uniclone(void *, void (*)(pthread_t), void *);
int __set_thread_area(void *);
int __libc_sigaction(int, const struct sigaction *, struct sigaction *);
int __libc_sigprocmask(int, const sigset_t *, sigset_t *);
int __set_thread_area(void *);
int __libc_sigaction(int, const struct sigaction *, struct sigaction *);
int __libc_sigprocmask(int, const sigset_t *, sigset_t *);
self->cancelbuf = self->cancelbuf->__next;
}
self->cancelbuf = self->cancelbuf->__next;
}
-static int start(void *p)
+static void start(pthread_t self)
- struct pthread *self = p;
if (self->unblock_cancel)
__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK, SIGPT_SET, 0, 8);
pthread_exit(self->start(self->start_arg));
if (self->unblock_cancel)
__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK, SIGPT_SET, 0, 8);
pthread_exit(self->start(self->start_arg));
-int __uniclone(void *, int (*)(), void *);
-
#define ROUND(x) (((x)+PAGE_SIZE-1)&-PAGE_SIZE)
/* pthread_key_create.c overrides this */
#define ROUND(x) (((x)+PAGE_SIZE-1)&-PAGE_SIZE)
/* pthread_key_create.c overrides this */
static struct chain {
struct chain *next;
sem_t sem, sem2;
static struct chain {
struct chain *next;
sem_t sem, sem2;
static void (*callback)(void *), *context;
static int chainlen;
static void (*callback)(void *), *context;
static int chainlen;
+void __synccall_wait()
+{
+ struct chain *ch = cur;
+ sem_post(&ch->sem2);
+ while (sem_wait(&ch->sem));
+ sem_post(&ch->sem);
+}
+
void __synccall(void (*func)(void *), void *ctx)
{
pthread_t self;
struct sigaction sa;
void __synccall(void (*func)(void *), void *ctx)
{
pthread_t self;
struct sigaction sa;
- struct chain *cur, *next;
uint64_t oldmask;
if (!libc.threads_minus_1) {
uint64_t oldmask;
if (!libc.threads_minus_1) {