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pthread_compat.c revision 1.2.20.1
      1 /*	$NetBSD: pthread_compat.c,v 1.2.20.1 2014/05/22 11:36:59 yamt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software developed for The NetBSD Foundation
      8  * by Andrew Doran.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * libc symbols that are not present before NetBSD 5.0.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 __RCSID("$NetBSD: pthread_compat.c,v 1.2.20.1 2014/05/22 11:36:59 yamt Exp $");
     38 
     39 #include <sys/param.h>
     40 #include <sys/syscall.h>
     41 #include <sys/aio.h>
     42 
     43 #include <lwp.h>
     44 #include <unistd.h>
     45 #include <sched.h>
     46 
     47 #include "pthread.h"
     48 #include "pthread_int.h"
     49 
     50 static void     __pthread_init(void) __attribute__((__constructor__, __used__));
     51 
     52 void	__libc_thr_init(void);
     53 void	__libc_atomic_init(void);
     54 
     55 int	_sys_sched_yield(void);
     56 int	_sys_aio_suspend(const struct aiocb * const[], int,
     57 			 const struct timespec *);
     58 int	_sys_mq_send(mqd_t, const char *, size_t, unsigned);
     59 ssize_t	_sys_mq_receive(mqd_t, char *, size_t, unsigned *);
     60 int	_sys_mq_timedsend(mqd_t, const char *, size_t, unsigned,
     61 			  const struct timespec *);
     62 ssize_t	_sys_mq_timedreceive(mqd_t, char *, size_t, unsigned *,
     63 			     const struct timespec *);
     64 
     65 static void
     66 __pthread_init(void)
     67 {
     68 
     69 	__libc_atomic_init();
     70 	__libc_thr_init();
     71 }
     72 
     73 int
     74 _lwp_kill(lwpid_t a, int b)
     75 {
     76 
     77 	return syscall(SYS__lwp_kill, a, b);
     78 }
     79 
     80 int
     81 _lwp_detach(lwpid_t a)
     82 {
     83 
     84 	return syscall(SYS__lwp_detach, a);
     85 }
     86 
     87 int
     88 _lwp_park(clockid_t a, int b, const struct timespec *c, lwpid_t d,
     89     const void *e, const void *f)
     90 {
     91 
     92 	return syscall(SYS____lwp_park60, a, b, c, d, e, f);
     93 }
     94 
     95 int
     96 _lwp_unpark(lwpid_t a, const void *b)
     97 {
     98 
     99 	return syscall(SYS__lwp_unpark, a, b);
    100 }
    101 
    102 ssize_t
    103 _lwp_unpark_all(const lwpid_t *a, size_t b, const void *c)
    104 {
    105 
    106 	return (ssize_t)syscall(SYS__lwp_unpark_all, a, b, c);
    107 }
    108 
    109 int
    110 _lwp_setname(lwpid_t a, const char *b)
    111 {
    112 
    113 	return syscall(SYS__lwp_setname, a, b);
    114 }
    115 
    116 int
    117 _lwp_getname(lwpid_t a, char *b, size_t c)
    118 {
    119 
    120 	return syscall(SYS__lwp_getname, a, b, c);
    121 }
    122 
    123 int
    124 _lwp_ctl(int a, struct lwpctl **b)
    125 {
    126 
    127 	return syscall(SYS__lwp_ctl, a, b);
    128 }
    129 
    130 int
    131 _sys_sched_yield(void)
    132 {
    133 
    134 	return syscall(SYS_sched_yield);
    135 }
    136 
    137 int
    138 sched_yield(void)
    139 {
    140 
    141 	return syscall(SYS_sched_yield);
    142 }
    143 
    144 int
    145 _sched_setaffinity(pid_t a, lwpid_t b, size_t c, const cpuset_t *d)
    146 {
    147 
    148 	return syscall(SYS__sched_setaffinity, a, b, c, d);
    149 }
    150 
    151 int
    152 _sched_getaffinity(pid_t a, lwpid_t b, size_t c, cpuset_t *d)
    153 {
    154 
    155 	return syscall(SYS__sched_getaffinity, a, b, c, d);
    156 }
    157 
    158 int
    159 _sched_setparam(pid_t a, lwpid_t b, int c, const struct sched_param *d)
    160 {
    161 
    162 	return syscall(SYS__sched_setparam, a, b, c, d);
    163 }
    164 
    165 int
    166 _sched_getparam(pid_t a, lwpid_t b, int *c, struct sched_param *d)
    167 {
    168 
    169 	return syscall(SYS__sched_getparam, a, b, c, d);
    170 }
    171 
    172 int
    173 _sys_aio_suspend(const struct aiocb * const a[], int b,
    174 		 const struct timespec *c)
    175 {
    176 
    177 	return syscall(SYS_aio_suspend, a, b, c);
    178 }
    179 
    180 int
    181 _sys_mq_send(mqd_t a, const char *b, size_t c, unsigned d)
    182 {
    183 
    184 	return syscall(SYS_mq_send, a, b, c, d);
    185 }
    186 
    187 ssize_t
    188 _sys_mq_receive(mqd_t a, char *b, size_t c, unsigned *d)
    189 {
    190 
    191 	return (ssize_t)syscall(SYS_mq_receive, a, b, c, d);
    192 }
    193 
    194 int
    195 _sys_mq_timedsend(mqd_t a, const char *b, size_t c, unsigned d,
    196 		  const struct timespec *e)
    197 {
    198 
    199 	return syscall(SYS_mq_timedsend, a, b,c ,d, e);
    200 }
    201 
    202 ssize_t
    203 _sys_mq_timedreceive(mqd_t a, char *b, size_t c, unsigned *d,
    204 		     const struct timespec *e)
    205 {
    206 
    207 	return (ssize_t)syscall(SYS_mq_timedreceive, a, b, c, d, e);
    208 }
    209