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-rw-r--r--lib/libc_r/uthread/uthread_create.c281
1 files changed, 0 insertions, 281 deletions
diff --git a/lib/libc_r/uthread/uthread_create.c b/lib/libc_r/uthread/uthread_create.c
deleted file mode 100644
index 3474bfa..0000000
--- a/lib/libc_r/uthread/uthread_create.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <stddef.h>
-#include <sys/time.h>
-#include <machine/reg.h>
-#include "namespace.h"
-#include <pthread.h>
-#include "un-namespace.h"
-
-#include "pthread_private.h"
-#include "libc_private.h"
-
-static u_int64_t next_uniqueid = 1;
-
-#define OFF(f) offsetof(struct pthread, f)
-int _thread_next_offset = OFF(tle.tqe_next);
-int _thread_uniqueid_offset = OFF(uniqueid);
-int _thread_state_offset = OFF(state);
-int _thread_name_offset = OFF(name);
-int _thread_ctx_offset = OFF(ctx);
-#undef OFF
-
-int _thread_PS_RUNNING_value = PS_RUNNING;
-int _thread_PS_DEAD_value = PS_DEAD;
-
-__weak_reference(_pthread_create, pthread_create);
-
-int
-_pthread_create(pthread_t *thread, const pthread_attr_t *attr,
- void *(*start_routine) (void *), void *arg)
-{
- struct pthread *curthread = _get_curthread();
- struct itimerval itimer;
- int f_gc = 0;
- int ret = 0;
- pthread_t gc_thread;
- pthread_t new_thread;
- pthread_attr_t pattr;
- void *stack;
-#if !defined(__ia64__)
- u_long stackp;
-#endif
-
- if (thread == NULL)
- return(EINVAL);
-
- /*
- * Locking functions in libc are required when there are
- * threads other than the initial thread.
- */
- __isthreaded = 1;
-
- /* Allocate memory for the thread structure: */
- if ((new_thread = (pthread_t) malloc(sizeof(struct pthread))) == NULL) {
- /* Insufficient memory to create a thread: */
- ret = EAGAIN;
- } else {
- /* Check if default thread attributes are required: */
- if (attr == NULL || *attr == NULL) {
- /* Use the default thread attributes: */
- pattr = &_pthread_attr_default;
- } else {
- pattr = *attr;
- }
- /* Check if a stack was specified in the thread attributes: */
- if ((stack = pattr->stackaddr_attr) != NULL) {
- }
- /* Allocate a stack: */
- else {
- stack = _thread_stack_alloc(pattr->stacksize_attr,
- pattr->guardsize_attr);
- if (stack == NULL) {
- ret = EAGAIN;
- free(new_thread);
- }
- }
-
- /* Check for errors: */
- if (ret != 0) {
- } else {
- /* Initialise the thread structure: */
- memset(new_thread, 0, sizeof(struct pthread));
- new_thread->slice_usec = -1;
- new_thread->stack = stack;
- new_thread->start_routine = start_routine;
- new_thread->arg = arg;
-
- new_thread->cancelflags = PTHREAD_CANCEL_ENABLE |
- PTHREAD_CANCEL_DEFERRED;
-
- /*
- * Write a magic value to the thread structure
- * to help identify valid ones:
- */
- new_thread->magic = PTHREAD_MAGIC;
-
- /* Initialise the thread for signals: */
- new_thread->sigmask = curthread->sigmask;
- new_thread->sigmask_seqno = 0;
-
- /* Initialize the signal frame: */
- new_thread->curframe = NULL;
-
- /* Initialise the jump buffer: */
- _setjmp(new_thread->ctx.jb);
-
- /*
- * Set up new stack frame so that it looks like it
- * returned from a longjmp() to the beginning of
- * _thread_start().
- */
- SET_RETURN_ADDR_JB(new_thread->ctx.jb, _thread_start);
-
-#if !defined(__ia64__)
- stackp = (long)new_thread->stack + pattr->stacksize_attr - sizeof(double);
-#if defined(__amd64__)
- stackp &= ~0xFUL;
-#endif
- /* The stack starts high and builds down: */
- SET_STACK_JB(new_thread->ctx.jb, stackp);
-#else
- SET_STACK_JB(new_thread->ctx.jb,
- (long)new_thread->stack, pattr->stacksize_attr);
-#endif
-
- /* Copy the thread attributes: */
- memcpy(&new_thread->attr, pattr, sizeof(struct pthread_attr));
-
- /*
- * Check if this thread is to inherit the scheduling
- * attributes from its parent:
- */
- if (new_thread->attr.flags & PTHREAD_INHERIT_SCHED) {
- /* Copy the scheduling attributes: */
- new_thread->base_priority =
- curthread->base_priority &
- ~PTHREAD_SIGNAL_PRIORITY;
- new_thread->attr.prio =
- curthread->base_priority &
- ~PTHREAD_SIGNAL_PRIORITY;
- new_thread->attr.sched_policy =
- curthread->attr.sched_policy;
- } else {
- /*
- * Use just the thread priority, leaving the
- * other scheduling attributes as their
- * default values:
- */
- new_thread->base_priority =
- new_thread->attr.prio;
- }
- new_thread->active_priority = new_thread->base_priority;
- new_thread->inherited_priority = 0;
-
- /* Initialize joiner to NULL (no joiner): */
- new_thread->joiner = NULL;
-
- /* Initialize the mutex queue: */
- TAILQ_INIT(&new_thread->mutexq);
-
- /* Initialise hooks in the thread structure: */
- new_thread->specific = NULL;
- new_thread->cleanup = NULL;
- new_thread->flags = 0;
- new_thread->poll_data.nfds = 0;
- new_thread->poll_data.fds = NULL;
- new_thread->continuation = NULL;
-
- /*
- * Defer signals to protect the scheduling queues
- * from access by the signal handler:
- */
- _thread_kern_sig_defer();
-
- /*
- * Initialise the unique id which GDB uses to
- * track threads.
- */
- new_thread->uniqueid = next_uniqueid++;
-
- /*
- * Check if the garbage collector thread
- * needs to be started.
- */
- f_gc = (TAILQ_FIRST(&_thread_list) == _thread_initial);
-
- /* Add the thread to the linked list of all threads: */
- TAILQ_INSERT_HEAD(&_thread_list, new_thread, tle);
-
- if (pattr->suspend == PTHREAD_CREATE_SUSPENDED) {
- new_thread->flags |= PTHREAD_FLAGS_SUSPENDED;
- new_thread->state = PS_SUSPENDED;
- } else {
- new_thread->state = PS_RUNNING;
- PTHREAD_PRIOQ_INSERT_TAIL(new_thread);
- }
-
- /*
- * Undefer and handle pending signals, yielding
- * if necessary.
- */
- _thread_kern_sig_undefer();
-
- /* Return a pointer to the thread structure: */
- (*thread) = new_thread;
-
- if (f_gc != 0) {
- /* Install the scheduling timer: */
- itimer.it_interval.tv_sec = 0;
- itimer.it_interval.tv_usec = _clock_res_usec;
- itimer.it_value = itimer.it_interval;
- if (setitimer(_ITIMER_SCHED_TIMER, &itimer,
- NULL) != 0)
- PANIC("Cannot set interval timer");
- }
-
- /* Schedule the new user thread: */
- _thread_kern_sched(NULL);
-
- /*
- * Start a garbage collector thread
- * if necessary.
- */
- if (f_gc && _pthread_create(&gc_thread, NULL,
- _thread_gc, NULL) != 0)
- PANIC("Can't create gc thread");
-
- }
- }
-
- /* Return the status: */
- return (ret);
-}
-
-void
-_thread_start(void)
-{
- struct pthread *curthread = _get_curthread();
-
- /* We just left the scheduler via longjmp: */
- _thread_kern_in_sched = 0;
-
- /* Run the current thread's start routine with argument: */
- _pthread_exit(curthread->start_routine(curthread->arg));
-
- /* This point should never be reached. */
- PANIC("Thread has resumed after exit");
-}
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