diff options
Diffstat (limited to 'lib/libc_r/uthread/uthread_init.c')
| -rw-r--r-- | lib/libc_r/uthread/uthread_init.c | 608 |
1 files changed, 0 insertions, 608 deletions
diff --git a/lib/libc_r/uthread/uthread_init.c b/lib/libc_r/uthread/uthread_init.c deleted file mode 100644 index 7c8c444..0000000 --- a/lib/libc_r/uthread/uthread_init.c +++ /dev/null @@ -1,608 +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. - * - * $FreeBSD$ - */ - -/* Allocate space for global thread variables here: */ -#define GLOBAL_PTHREAD_PRIVATE - -#include "namespace.h" -#include <sys/param.h> -#include <sys/types.h> -#include <machine/reg.h> - -#include <sys/ioctl.h> -#include <sys/mount.h> -#include <sys/uio.h> -#include <sys/socket.h> -#include <sys/event.h> -#include <sys/stat.h> -#include <sys/sysctl.h> -#include <sys/time.h> -#include <sys/ttycom.h> -#include <sys/wait.h> -#include <sys/mman.h> -#include <dirent.h> -#include <errno.h> -#include <fcntl.h> -#include <paths.h> -#include <poll.h> -#include <pthread.h> -#include <pthread_np.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include "un-namespace.h" - -#include "libc_private.h" -#include "pthread_private.h" - -int __pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *); -int __pthread_mutex_lock(pthread_mutex_t *); -int __pthread_mutex_trylock(pthread_mutex_t *); - -/* - * All weak references used within libc should be in this table. - * This allows static libraries to work. - */ -static void *references[] = { - &_accept, - &_bind, - &_close, - &_connect, - &_dup, - &_dup2, - &_execve, - &_fcntl, - &_flock, - &_flockfile, - &_fstat, - &_fstatfs, - &_fsync, - &_funlockfile, - &_getdirentries, - &_getlogin, - &_getpeername, - &_getsockname, - &_getsockopt, - &_ioctl, - &_kevent, - &_kqueue, - &_listen, - &_nanosleep, - &_open, - &_pthread_cond_destroy, - &_pthread_cond_init, - &_pthread_cond_signal, - &_pthread_cond_wait, - &_pthread_getspecific, - &_pthread_key_create, - &_pthread_key_delete, - &_pthread_mutex_destroy, - &_pthread_mutex_init, - &_pthread_mutex_lock, - &_pthread_mutex_trylock, - &_pthread_mutex_unlock, - &_pthread_mutexattr_init, - &_pthread_mutexattr_destroy, - &_pthread_mutexattr_settype, - &_pthread_once, - &_pthread_setspecific, - &_read, - &_readv, - &_recvfrom, - &_recvmsg, - &_select, - &_sendmsg, - &_sendto, - &_setsockopt, - &_sigaction, - &_sigprocmask, - &_sigsuspend, - &_socket, - &_socketpair, - &_wait4, - &_write, - &_writev -}; - -/* - * These are needed when linking statically. All references within - * libgcc (and libc) to these routines are weak, but if they are not - * (strongly) referenced by the application or other libraries, then - * the actual functions will not be loaded. - */ -static void *libgcc_references[] = { - &_pthread_once, - &_pthread_key_create, - &_pthread_key_delete, - &_pthread_getspecific, - &_pthread_setspecific, - &_pthread_mutex_init, - &_pthread_mutex_destroy, - &_pthread_mutex_lock, - &_pthread_mutex_trylock, - &_pthread_mutex_unlock -}; - -#define DUAL_ENTRY(entry) \ - (pthread_func_t)entry, (pthread_func_t)entry - -static pthread_func_t jmp_table[][2] = { - {DUAL_ENTRY(_pthread_atfork)}, /* PJT_ATFORK */ - {DUAL_ENTRY(_pthread_attr_destroy)}, /* PJT_ATTR_DESTROY */ - {DUAL_ENTRY(_pthread_attr_getdetachstate)}, /* PJT_ATTR_GETDETACHSTATE */ - {DUAL_ENTRY(_pthread_attr_getguardsize)}, /* PJT_ATTR_GETGUARDSIZE */ - {DUAL_ENTRY(_pthread_attr_getinheritsched)}, /* PJT_ATTR_GETINHERITSCHED */ - {DUAL_ENTRY(_pthread_attr_getschedparam)}, /* PJT_ATTR_GETSCHEDPARAM */ - {DUAL_ENTRY(_pthread_attr_getschedpolicy)}, /* PJT_ATTR_GETSCHEDPOLICY */ - {DUAL_ENTRY(_pthread_attr_getscope)}, /* PJT_ATTR_GETSCOPE */ - {DUAL_ENTRY(_pthread_attr_getstackaddr)}, /* PJT_ATTR_GETSTACKADDR */ - {DUAL_ENTRY(_pthread_attr_getstacksize)}, /* PJT_ATTR_GETSTACKSIZE */ - {DUAL_ENTRY(_pthread_attr_init)}, /* PJT_ATTR_INIT */ - {DUAL_ENTRY(_pthread_attr_setdetachstate)}, /* PJT_ATTR_SETDETACHSTATE */ - {DUAL_ENTRY(_pthread_attr_setguardsize)}, /* PJT_ATTR_SETGUARDSIZE */ - {DUAL_ENTRY(_pthread_attr_setinheritsched)}, /* PJT_ATTR_SETINHERITSCHED */ - {DUAL_ENTRY(_pthread_attr_setschedparam)}, /* PJT_ATTR_SETSCHEDPARAM */ - {DUAL_ENTRY(_pthread_attr_setschedpolicy)}, /* PJT_ATTR_SETSCHEDPOLICY */ - {DUAL_ENTRY(_pthread_attr_setscope)}, /* PJT_ATTR_SETSCOPE */ - {DUAL_ENTRY(_pthread_attr_setstackaddr)}, /* PJT_ATTR_SETSTACKADDR */ - {DUAL_ENTRY(_pthread_attr_setstacksize)}, /* PJT_ATTR_SETSTACKSIZE */ - {DUAL_ENTRY(_pthread_cancel)}, /* PJT_CANCEL */ - {DUAL_ENTRY(_pthread_cleanup_pop)}, /* PJT_CLEANUP_POP */ - {DUAL_ENTRY(_pthread_cleanup_push)}, /* PJT_CLEANUP_PUSH */ - {DUAL_ENTRY(_pthread_cond_broadcast)}, /* PJT_COND_BROADCAST */ - {DUAL_ENTRY(_pthread_cond_destroy)}, /* PJT_COND_DESTROY */ - {DUAL_ENTRY(_pthread_cond_init)}, /* PJT_COND_INIT */ - {DUAL_ENTRY(_pthread_cond_signal)}, /* PJT_COND_SIGNAL */ - {DUAL_ENTRY(_pthread_cond_timedwait)}, /* PJT_COND_TIMEDWAIT */ - {(pthread_func_t)__pthread_cond_wait, - (pthread_func_t)_pthread_cond_wait}, /* PJT_COND_WAIT */ - {DUAL_ENTRY(_pthread_detach)}, /* PJT_DETACH */ - {DUAL_ENTRY(_pthread_equal)}, /* PJT_EQUAL */ - {DUAL_ENTRY(_pthread_exit)}, /* PJT_EXIT */ - {DUAL_ENTRY(_pthread_getspecific)}, /* PJT_GETSPECIFIC */ - {DUAL_ENTRY(_pthread_join)}, /* PJT_JOIN */ - {DUAL_ENTRY(_pthread_key_create)}, /* PJT_KEY_CREATE */ - {DUAL_ENTRY(_pthread_key_delete)}, /* PJT_KEY_DELETE*/ - {DUAL_ENTRY(_pthread_kill)}, /* PJT_KILL */ - {DUAL_ENTRY(_pthread_main_np)}, /* PJT_MAIN_NP */ - {DUAL_ENTRY(_pthread_mutexattr_destroy)}, /* PJT_MUTEXATTR_DESTROY */ - {DUAL_ENTRY(_pthread_mutexattr_init)}, /* PJT_MUTEXATTR_INIT */ - {DUAL_ENTRY(_pthread_mutexattr_settype)}, /* PJT_MUTEXATTR_SETTYPE */ - {DUAL_ENTRY(_pthread_mutex_destroy)}, /* PJT_MUTEX_DESTROY */ - {DUAL_ENTRY(_pthread_mutex_init)}, /* PJT_MUTEX_INIT */ - {(pthread_func_t)__pthread_mutex_lock, - (pthread_func_t)_pthread_mutex_lock}, /* PJT_MUTEX_LOCK */ - {(pthread_func_t)__pthread_mutex_trylock, - (pthread_func_t)_pthread_mutex_trylock},/* PJT_MUTEX_TRYLOCK */ - {DUAL_ENTRY(_pthread_mutex_unlock)}, /* PJT_MUTEX_UNLOCK */ - {DUAL_ENTRY(_pthread_once)}, /* PJT_ONCE */ - {DUAL_ENTRY(_pthread_rwlock_destroy)}, /* PJT_RWLOCK_DESTROY */ - {DUAL_ENTRY(_pthread_rwlock_init)}, /* PJT_RWLOCK_INIT */ - {DUAL_ENTRY(_pthread_rwlock_rdlock)}, /* PJT_RWLOCK_RDLOCK */ - {DUAL_ENTRY(_pthread_rwlock_tryrdlock)},/* PJT_RWLOCK_TRYRDLOCK */ - {DUAL_ENTRY(_pthread_rwlock_trywrlock)},/* PJT_RWLOCK_TRYWRLOCK */ - {DUAL_ENTRY(_pthread_rwlock_unlock)}, /* PJT_RWLOCK_UNLOCK */ - {DUAL_ENTRY(_pthread_rwlock_wrlock)}, /* PJT_RWLOCK_WRLOCK */ - {DUAL_ENTRY(_pthread_self)}, /* PJT_SELF */ - {DUAL_ENTRY(_pthread_setcancelstate)}, /* PJT_SETCANCELSTATE */ - {DUAL_ENTRY(_pthread_setcanceltype)}, /* PJT_SETCANCELTYPE */ - {DUAL_ENTRY(_pthread_setspecific)}, /* PJT_SETSPECIFIC */ - {DUAL_ENTRY(_pthread_sigmask)}, /* PJT_SIGMASK */ - {DUAL_ENTRY(_pthread_testcancel)} /* PJT_TESTCANCEL */ -}; - -int _pthread_guard_default; -int _pthread_page_size; -int _pthread_stack_default; -int _pthread_stack_initial; - -/* - * Threaded process initialization - */ -void -_thread_init(void) -{ - int fd; - int flags; - int i; - size_t len; - int mib[2]; - int sched_stack_size; /* Size of scheduler stack. */ -#if !defined(__ia64__) - u_long stackp; -#endif - - struct clockinfo clockinfo; - struct sigaction act; - - - /* Check if this function has already been called: */ - if (_thread_initial) - /* Only initialise the threaded application once. */ - return; - - _pthread_page_size = getpagesize();; - _pthread_guard_default = _pthread_page_size; - sched_stack_size = 4 * _pthread_page_size; - if (sizeof(void *) == 8) { - _pthread_stack_default = PTHREAD_STACK64_DEFAULT; - _pthread_stack_initial = PTHREAD_STACK64_INITIAL; - } - else { - _pthread_stack_default = PTHREAD_STACK32_DEFAULT; - _pthread_stack_initial = PTHREAD_STACK32_INITIAL; - } - - _pthread_attr_default.guardsize_attr = _pthread_guard_default; - _pthread_attr_default.stacksize_attr = _pthread_stack_default; - - /* - * Make gcc quiescent about {,libgcc_}references not being - * referenced: - */ - if ((references[0] == NULL) || (libgcc_references[0] == NULL)) - PANIC("Failed loading mandatory references in _thread_init"); - - /* - * Check the size of the jump table to make sure it is preset - * with the correct number of entries. - */ - if (sizeof(jmp_table) != (sizeof(pthread_func_t) * PJT_MAX * 2)) - PANIC("Thread jump table not properly initialized"); - memcpy(__thr_jtable, jmp_table, sizeof(jmp_table)); - - /* - * Check for the special case of this process running as - * or in place of init as pid = 1: - */ - if (getpid() == 1) { - /* - * Setup a new session for this process which is - * assumed to be running as root. - */ - if (setsid() == -1) - PANIC("Can't set session ID"); - if (revoke(_PATH_CONSOLE) != 0) - PANIC("Can't revoke console"); - if ((fd = __sys_open(_PATH_CONSOLE, O_RDWR)) < 0) - PANIC("Can't open console"); - if (setlogin("root") == -1) - PANIC("Can't set login to root"); - if (__sys_ioctl(fd, TIOCSCTTY, (char *) NULL) == -1) - PANIC("Can't set controlling terminal"); - if (__sys_dup2(fd, 0) == -1 || - __sys_dup2(fd, 1) == -1 || - __sys_dup2(fd, 2) == -1) - PANIC("Can't dup2"); - } - - /* Get the standard I/O flags before messing with them : */ - for (i = 0; i < 3; i++) { - if (((_pthread_stdio_flags[i] = - __sys_fcntl(i, F_GETFL, NULL)) == -1) && - (errno != EBADF)) - PANIC("Cannot get stdio flags"); - } - - /* - * Create a pipe that is written to by the signal handler to prevent - * signals being missed in calls to _select: - */ - if (__sys_pipe(_thread_kern_pipe) != 0) { - /* Cannot create pipe, so abort: */ - PANIC("Cannot create kernel pipe"); - } - - /* - * Make sure the pipe does not get in the way of stdio: - */ - for (i = 0; i < 2; i++) { - if (_thread_kern_pipe[i] < 3) { - fd = __sys_fcntl(_thread_kern_pipe[i], F_DUPFD, 3); - if (fd == -1) - PANIC("Cannot create kernel pipe"); - __sys_close(_thread_kern_pipe[i]); - _thread_kern_pipe[i] = fd; - } - } - /* Get the flags for the read pipe: */ - if ((flags = __sys_fcntl(_thread_kern_pipe[0], F_GETFL, NULL)) == -1) { - /* Abort this application: */ - PANIC("Cannot get kernel read pipe flags"); - } - /* Make the read pipe non-blocking: */ - else if (__sys_fcntl(_thread_kern_pipe[0], F_SETFL, flags | O_NONBLOCK) == -1) { - /* Abort this application: */ - PANIC("Cannot make kernel read pipe non-blocking"); - } - /* Get the flags for the write pipe: */ - else if ((flags = __sys_fcntl(_thread_kern_pipe[1], F_GETFL, NULL)) == -1) { - /* Abort this application: */ - PANIC("Cannot get kernel write pipe flags"); - } - /* Make the write pipe non-blocking: */ - else if (__sys_fcntl(_thread_kern_pipe[1], F_SETFL, flags | O_NONBLOCK) == -1) { - /* Abort this application: */ - PANIC("Cannot get kernel write pipe flags"); - } - /* Allocate and initialize the ready queue: */ - else if (_pq_alloc(&_readyq, PTHREAD_MIN_PRIORITY, PTHREAD_LAST_PRIORITY) != 0) { - /* Abort this application: */ - PANIC("Cannot allocate priority ready queue."); - } - /* Allocate memory for the thread structure of the initial thread: */ - else if ((_thread_initial = (pthread_t) malloc(sizeof(struct pthread))) == NULL) { - /* - * Insufficient memory to initialise this application, so - * abort: - */ - PANIC("Cannot allocate memory for initial thread"); - } - /* Allocate memory for the scheduler stack: */ - else if ((_thread_kern_sched_stack = malloc(sched_stack_size)) == NULL) - PANIC("Failed to allocate stack for scheduler"); - else { - /* Zero the global kernel thread structure: */ - memset(&_thread_kern_thread, 0, sizeof(struct pthread)); - _thread_kern_thread.flags = PTHREAD_FLAGS_PRIVATE; - memset(_thread_initial, 0, sizeof(struct pthread)); - - /* Initialize the waiting and work queues: */ - TAILQ_INIT(&_waitingq); - TAILQ_INIT(&_workq); - - /* Initialize the scheduling switch hook routine: */ - _sched_switch_hook = NULL; - - /* Give this thread default attributes: */ - memcpy((void *) &_thread_initial->attr, &_pthread_attr_default, - sizeof(struct pthread_attr)); - - /* Find the stack top */ - mib[0] = CTL_KERN; - mib[1] = KERN_USRSTACK; - len = sizeof (_usrstack); - if (sysctl(mib, 2, &_usrstack, &len, NULL, 0) == -1) - _usrstack = (void *)USRSTACK; - /* - * Create a red zone below the main stack. All other stacks are - * constrained to a maximum size by the paramters passed to - * mmap(), but this stack is only limited by resource limits, so - * this stack needs an explicitly mapped red zone to protect the - * thread stack that is just beyond. - */ - if (mmap(_usrstack - _pthread_stack_initial - - _pthread_guard_default, _pthread_guard_default, 0, - MAP_ANON, -1, 0) == MAP_FAILED) - PANIC("Cannot allocate red zone for initial thread"); - - /* Set the main thread stack pointer. */ - _thread_initial->stack = _usrstack - _pthread_stack_initial; - - /* Set the stack attributes: */ - _thread_initial->attr.stackaddr_attr = _thread_initial->stack; - _thread_initial->attr.stacksize_attr = _pthread_stack_initial; - - /* Setup the context for the scheduler: */ - _setjmp(_thread_kern_sched_jb); -#if !defined(__ia64__) - stackp = (long)_thread_kern_sched_stack + sched_stack_size - sizeof(double); -#if defined(__amd64__) - stackp &= ~0xFUL; -#endif - SET_STACK_JB(_thread_kern_sched_jb, stackp); -#else - SET_STACK_JB(_thread_kern_sched_jb, _thread_kern_sched_stack, - sched_stack_size); -#endif - SET_RETURN_ADDR_JB(_thread_kern_sched_jb, _thread_kern_scheduler); - - /* - * Write a magic value to the thread structure - * to help identify valid ones: - */ - _thread_initial->magic = PTHREAD_MAGIC; - - /* Set the initial cancel state */ - _thread_initial->cancelflags = PTHREAD_CANCEL_ENABLE | - PTHREAD_CANCEL_DEFERRED; - - /* Default the priority of the initial thread: */ - _thread_initial->base_priority = PTHREAD_DEFAULT_PRIORITY; - _thread_initial->active_priority = PTHREAD_DEFAULT_PRIORITY; - _thread_initial->inherited_priority = 0; - - /* Initialise the state of the initial thread: */ - _thread_initial->state = PS_RUNNING; - - /* Set the name of the thread: */ - _thread_initial->name = strdup("_thread_initial"); - - /* Initialize joiner to NULL (no joiner): */ - _thread_initial->joiner = NULL; - - /* Initialize the owned mutex queue and count: */ - TAILQ_INIT(&(_thread_initial->mutexq)); - _thread_initial->priority_mutex_count = 0; - - /* Initialize the global scheduling time: */ - _sched_ticks = 0; - gettimeofday((struct timeval *) &_sched_tod, NULL); - - /* Initialize last active: */ - _thread_initial->last_active = (long) _sched_ticks; - - /* Initialize the initial context: */ - _thread_initial->curframe = NULL; - - /* Initialise the rest of the fields: */ - _thread_initial->poll_data.nfds = 0; - _thread_initial->poll_data.fds = NULL; - _thread_initial->sig_defer_count = 0; - _thread_initial->yield_on_sig_undefer = 0; - _thread_initial->specific = NULL; - _thread_initial->cleanup = NULL; - _thread_initial->flags = 0; - _thread_initial->error = 0; - TAILQ_INIT(&_thread_list); - TAILQ_INSERT_HEAD(&_thread_list, _thread_initial, tle); - _set_curthread(_thread_initial); - TAILQ_INIT(&_atfork_list); - _pthread_mutex_init(&_atfork_mutex, NULL); - - /* Initialise the global signal action structure: */ - sigfillset(&act.sa_mask); - act.sa_handler = (void (*) ()) _thread_sig_handler; - act.sa_flags = SA_SIGINFO | SA_RESTART; - - /* Clear pending signals for the process: */ - sigemptyset(&_process_sigpending); - - /* Clear the signal queue: */ - memset(_thread_sigq, 0, sizeof(_thread_sigq)); - - /* Enter a loop to get the existing signal status: */ - for (i = 1; i < NSIG; i++) { - /* Check for signals which cannot be trapped: */ - if (i == SIGKILL || i == SIGSTOP) { - } - - /* Get the signal handler details: */ - else if (__sys_sigaction(i, NULL, - &_thread_sigact[i - 1]) != 0) { - /* - * Abort this process if signal - * initialisation fails: - */ - PANIC("Cannot read signal handler info"); - } - - /* Initialize the SIG_DFL dummy handler count. */ - _thread_dfl_count[i] = 0; - } - - /* - * Install the signal handler for the most important - * signals that the user-thread kernel needs. Actually - * SIGINFO isn't really needed, but it is nice to have. - */ - if (__sys_sigaction(_SCHED_SIGNAL, &act, NULL) != 0 || - __sys_sigaction(SIGINFO, &act, NULL) != 0 || - __sys_sigaction(SIGCHLD, &act, NULL) != 0) { - /* - * Abort this process if signal initialisation fails: - */ - PANIC("Cannot initialise signal handler"); - } - _thread_sigact[_SCHED_SIGNAL - 1].sa_flags = SA_SIGINFO; - _thread_sigact[SIGINFO - 1].sa_flags = SA_SIGINFO; - _thread_sigact[SIGCHLD - 1].sa_flags = SA_SIGINFO; - - /* Get the process signal mask: */ - __sys_sigprocmask(SIG_SETMASK, NULL, &_process_sigmask); - - /* Get the kernel clockrate: */ - mib[0] = CTL_KERN; - mib[1] = KERN_CLOCKRATE; - len = sizeof (struct clockinfo); - if (sysctl(mib, 2, &clockinfo, &len, NULL, 0) == 0) - _clock_res_usec = clockinfo.tick > CLOCK_RES_USEC_MIN ? - clockinfo.tick : CLOCK_RES_USEC_MIN; - - /* Get the table size: */ - if ((_thread_dtablesize = getdtablesize()) < 0) { - /* - * Cannot get the system defined table size, so abort - * this process. - */ - PANIC("Cannot get dtablesize"); - } - /* Allocate memory for the file descriptor table: */ - if ((_thread_fd_table = (struct fd_table_entry **) malloc(sizeof(struct fd_table_entry *) * _thread_dtablesize)) == NULL) { - /* Avoid accesses to file descriptor table on exit: */ - _thread_dtablesize = 0; - - /* - * Cannot allocate memory for the file descriptor - * table, so abort this process. - */ - PANIC("Cannot allocate memory for file descriptor table"); - } - /* Allocate memory for the pollfd table: */ - if ((_thread_pfd_table = (struct pollfd *) malloc(sizeof(struct pollfd) * _thread_dtablesize)) == NULL) { - /* - * Cannot allocate memory for the file descriptor - * table, so abort this process. - */ - PANIC("Cannot allocate memory for pollfd table"); - } else { - /* - * Enter a loop to initialise the file descriptor - * table: - */ - for (i = 0; i < _thread_dtablesize; i++) { - /* Initialise the file descriptor table: */ - _thread_fd_table[i] = NULL; - } - - /* Initialize stdio file descriptor table entries: */ - for (i = 0; i < 3; i++) { - if ((_thread_fd_table_init(i) != 0) && - (errno != EBADF)) - PANIC("Cannot initialize stdio file " - "descriptor table entry"); - } - } - } - - /* Initialise the garbage collector mutex and condition variable. */ - if (_pthread_mutex_init(&_gc_mutex,NULL) != 0 || - _pthread_cond_init(&_gc_cond,NULL) != 0) - PANIC("Failed to initialise garbage collector mutex or condvar"); -} - - -/* - * Special start up code for NetBSD/Alpha - */ -#if defined(__NetBSD__) && defined(__alpha__) -int -main(int argc, char *argv[], char *env); - -int -_thread_main(int argc, char *argv[], char *env) -{ - _thread_init(); - return (main(argc, argv, env)); -} -#endif |
