freebsd-skq/lib/libc/gen/_pthread_stubs.c

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/*
* Copyright (c) 2001 Daniel Eischen <deischen@FreeBSD.org>.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN 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.
*/
2002-02-01 00:57:29 +00:00
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
Bring in a hybrid of SunSoft's transport-independent RPC (TI-RPC) and associated changes that had to happen to make this possible as well as bugs fixed along the way. Bring in required TLI library routines to support this. Since we don't support TLI we've essentially copied what NetBSD has done, adding a thin layer to emulate direct the TLI calls into BSD socket calls. This is mostly from Sun's tirpc release that was made in 1994, however some fixes were backported from the 1999 release (supposedly only made available after this porting effort was underway). The submitter has agreed to continue on and bring us up to the 1999 release. Several key features are introduced with this update: Client calls are thread safe. (1999 code has server side thread safe) Updated, a more modern interface. Many userland updates were done to bring the code up to par with the recent RPC API. There is an update to the pthreads library, a function pthread_main_np() was added to emulate a function of Sun's threads library. While we're at it, bring in NetBSD's lockd, it's been far too long of a wait. New rpcbind(8) replaces portmap(8) (supporting communication over an authenticated Unix-domain socket, and by default only allowing set and unset requests over that channel). It's much more secure than the old portmapper. Umount(8), mountd(8), mount_nfs(8), nfsd(8) have also been upgraded to support TI-RPC and to support IPV6. Umount(8) is also fixed to unmount pathnames longer than 80 chars, which are currently truncated by the Kernel statfs structure. Submitted by: Martin Blapp <mb@imp.ch> Manpage review: ru Secure RPC implemented by: wpaul
2001-03-19 12:50:13 +00:00
#include <signal.h>
#include <pthread.h>
#include <stdlib.h>
#include "libc_private.h"
/*
* Weak symbols: All libc internal usage of these functions should
* use the weak symbol versions (_pthread_XXX). If libpthread is
* linked, it will override these functions with (non-weak) routines.
* The _pthread_XXX functions are provided solely for internal libc
* usage to avoid unwanted cancellation points and to differentiate
* between application locks and libc locks (threads holding the
* latter can't be allowed to exit/terminate).
*/
Bring in a hybrid of SunSoft's transport-independent RPC (TI-RPC) and associated changes that had to happen to make this possible as well as bugs fixed along the way. Bring in required TLI library routines to support this. Since we don't support TLI we've essentially copied what NetBSD has done, adding a thin layer to emulate direct the TLI calls into BSD socket calls. This is mostly from Sun's tirpc release that was made in 1994, however some fixes were backported from the 1999 release (supposedly only made available after this porting effort was underway). The submitter has agreed to continue on and bring us up to the 1999 release. Several key features are introduced with this update: Client calls are thread safe. (1999 code has server side thread safe) Updated, a more modern interface. Many userland updates were done to bring the code up to par with the recent RPC API. There is an update to the pthreads library, a function pthread_main_np() was added to emulate a function of Sun's threads library. While we're at it, bring in NetBSD's lockd, it's been far too long of a wait. New rpcbind(8) replaces portmap(8) (supporting communication over an authenticated Unix-domain socket, and by default only allowing set and unset requests over that channel). It's much more secure than the old portmapper. Umount(8), mountd(8), mount_nfs(8), nfsd(8) have also been upgraded to support TI-RPC and to support IPV6. Umount(8) is also fixed to unmount pathnames longer than 80 chars, which are currently truncated by the Kernel statfs structure. Submitted by: Martin Blapp <mb@imp.ch> Manpage review: ru Secure RPC implemented by: wpaul
2001-03-19 12:50:13 +00:00
/* Define a null pthread structure just to satisfy _pthread_self. */
struct pthread {
};
static struct pthread main_thread;
static int stub_main(void);
static void *stub_null(void);
static struct pthread *stub_self(void);
static int stub_zero(void);
static int stub_true(void);
static void stub_exit(void);
#define PJT_DUAL_ENTRY(entry) \
(pthread_func_t)entry, (pthread_func_t)entry
pthread_func_entry_t __thr_jtable[PJT_MAX] = {
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATFORK */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_DESTROY */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_GETDETACHSTATE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_GETGUARDSIZE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_GETINHERITSCHED */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_GETSCHEDPARAM */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_GETSCHEDPOLICY */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_GETSCOPE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_GETSTACKADDR */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_GETSTACKSIZE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_INIT */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_SETDETACHSTATE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_SETGUARDSIZE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_SETINHERITSCHED */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_SETSCHEDPARAM */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_SETSCHEDPOLICY */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_SETSCOPE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_SETSTACKADDR */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ATTR_SETSTACKSIZE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_CANCEL */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_CLEANUP_POP */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_CLEANUP_PUSH */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_COND_BROADCAST */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_COND_DESTROY */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_COND_INIT */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_COND_SIGNAL */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_COND_TIMEDWAIT */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_COND_WAIT */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_DETACH */
{PJT_DUAL_ENTRY(stub_true)}, /* PJT_EQUAL */
{PJT_DUAL_ENTRY(stub_exit)}, /* PJT_EXIT */
{PJT_DUAL_ENTRY(stub_null)}, /* PJT_GETSPECIFIC */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_JOIN */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_KEY_CREATE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_KEY_DELETE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_KILL */
{PJT_DUAL_ENTRY(stub_main)}, /* PJT_MAIN_NP */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_MUTEXATTR_DESTROY */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_MUTEXATTR_INIT */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_MUTEXATTR_SETTYPE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_MUTEX_DESTROY */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_MUTEX_INIT */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_MUTEX_LOCK */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_MUTEX_TRYLOCK */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_MUTEX_UNLOCK */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_ONCE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_RWLOCK_DESTROY */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_RWLOCK_INIT */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_RWLOCK_RDLOCK */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_RWLOCK_TRYRDLOCK */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_RWLOCK_TRYWRLOCK */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_RWLOCK_UNLOCK */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_RWLOCK_WRLOCK */
{PJT_DUAL_ENTRY(stub_self)}, /* PJT_SELF */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_SETCANCELSTATE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_SETCANCELTYPE */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_SETSPECIFIC */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_SIGMASK */
{PJT_DUAL_ENTRY(stub_zero)}, /* PJT_TESTCANCEL */
};
/*
* Weak aliases for exported (pthread_*) and internal (_pthread_*) routines.
*/
#define WEAK_REF(sym, alias) __weak_reference(sym, alias)
#define FUNC_TYPE(name) __CONCAT(name, _func_t)
#define FUNC_INT(name) __CONCAT(name, _int)
#define FUNC_EXP(name) __CONCAT(name, _exp)
#define STUB_FUNC(name, idx, ret) \
static ret FUNC_EXP(name)(void) __used; \
static ret FUNC_INT(name)(void) __used; \
WEAK_REF(FUNC_EXP(name), name); \
WEAK_REF(FUNC_INT(name), __CONCAT(_, name)); \
typedef ret (*FUNC_TYPE(name))(void); \
static ret FUNC_EXP(name)(void) \
{ \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
return (func()); \
} \
static ret FUNC_INT(name)(void) \
{ \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
return (func()); \
}
#define STUB_FUNC1(name, idx, ret, p0_type) \
static ret FUNC_EXP(name)(p0_type) __used; \
static ret FUNC_INT(name)(p0_type) __used; \
WEAK_REF(FUNC_EXP(name), name); \
WEAK_REF(FUNC_INT(name), __CONCAT(_, name)); \
typedef ret (*FUNC_TYPE(name))(p0_type); \
static ret FUNC_EXP(name)(p0_type p0) \
{ \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
return (func(p0)); \
} \
static ret FUNC_INT(name)(p0_type p0) \
{ \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
return (func(p0)); \
}
#define STUB_FUNC2(name, idx, ret, p0_type, p1_type) \
static ret FUNC_EXP(name)(p0_type, p1_type) __used; \
static ret FUNC_INT(name)(p0_type, p1_type) __used; \
WEAK_REF(FUNC_EXP(name), name); \
WEAK_REF(FUNC_INT(name), __CONCAT(_, name)); \
typedef ret (*FUNC_TYPE(name))(p0_type, p1_type); \
static ret FUNC_EXP(name)(p0_type p0, p1_type p1) \
{ \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
return (func(p0, p1)); \
} \
static ret FUNC_INT(name)(p0_type p0, p1_type p1) \
{ \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
return (func(p0, p1)); \
}
#define STUB_FUNC3(name, idx, ret, p0_type, p1_type, p2_type) \
static ret FUNC_EXP(name)(p0_type, p1_type, p2_type) __used; \
static ret FUNC_INT(name)(p0_type, p1_type, p2_type) __used; \
WEAK_REF(FUNC_EXP(name), name); \
WEAK_REF(FUNC_INT(name), __CONCAT(_, name)); \
typedef ret (*FUNC_TYPE(name))(p0_type, p1_type, p2_type); \
static ret FUNC_EXP(name)(p0_type p0, p1_type p1, p2_type p2) \
{ \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
return (func(p0, p1, p2)); \
} \
static ret FUNC_INT(name)(p0_type p0, p1_type p1, p2_type p2) \
{ \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
return (func(p0, p1, p2)); \
}
STUB_FUNC1(pthread_cond_broadcast, PJT_COND_BROADCAST, int, void *)
STUB_FUNC1(pthread_cond_destroy, PJT_COND_DESTROY, int, void *)
STUB_FUNC2(pthread_cond_init, PJT_COND_INIT, int, void *, void *)
STUB_FUNC1(pthread_cond_signal, PJT_COND_SIGNAL, int, void *)
STUB_FUNC2(pthread_cond_wait, PJT_COND_WAIT, int, void *, void *)
STUB_FUNC1(pthread_getspecific, PJT_GETSPECIFIC, void *, pthread_key_t)
STUB_FUNC2(pthread_key_create, PJT_KEY_CREATE, int, void *, void *)
STUB_FUNC1(pthread_key_delete, PJT_KEY_DELETE, int, pthread_key_t)
STUB_FUNC(pthread_main_np, PJT_MAIN_NP, int)
STUB_FUNC1(pthread_mutex_destroy, PJT_MUTEX_DESTROY, int, void *)
STUB_FUNC2(pthread_mutex_init, PJT_MUTEX_INIT, int, void *, void *)
STUB_FUNC1(pthread_mutex_lock, PJT_MUTEX_LOCK, int, void *)
STUB_FUNC1(pthread_mutex_trylock, PJT_MUTEX_TRYLOCK, int, void *)
STUB_FUNC1(pthread_mutex_unlock, PJT_MUTEX_UNLOCK, int, void *)
STUB_FUNC1(pthread_mutexattr_destroy, PJT_MUTEXATTR_DESTROY, int, void *)
STUB_FUNC1(pthread_mutexattr_init, PJT_MUTEXATTR_INIT, int, void *)
STUB_FUNC1(pthread_mutexattr_settype, PJT_MUTEXATTR_SETTYPE, int, void *)
STUB_FUNC2(pthread_once, PJT_ONCE, int, void *, void *)
STUB_FUNC1(pthread_rwlock_destroy, PJT_RWLOCK_DESTROY, int, void *)
STUB_FUNC2(pthread_rwlock_init, PJT_RWLOCK_INIT, int, void *, void *)
STUB_FUNC1(pthread_rwlock_rdlock, PJT_RWLOCK_RDLOCK, int, void *)
STUB_FUNC1(pthread_rwlock_tryrdlock, PJT_RWLOCK_TRYRDLOCK, int, void *)
STUB_FUNC1(pthread_rwlock_trywrlock, PJT_RWLOCK_TRYWRLOCK, int, void *)
STUB_FUNC1(pthread_rwlock_unlock, PJT_RWLOCK_UNLOCK, int, void *)
STUB_FUNC1(pthread_rwlock_wrlock, PJT_RWLOCK_WRLOCK, int, void *)
STUB_FUNC(pthread_self, PJT_SELF, pthread_t)
STUB_FUNC2(pthread_setspecific, PJT_SETSPECIFIC, int, pthread_key_t, void *)
STUB_FUNC3(pthread_sigmask, PJT_SIGMASK, int, int, void *, void *)
STUB_FUNC3(pthread_atfork, PJT_ATFORK, int, void *, void *, void*)
STUB_FUNC1(pthread_attr_destroy, PJT_ATTR_DESTROY, int, void *);
STUB_FUNC2(pthread_attr_getdetachstate, PJT_ATTR_GETDETACHSTATE, int, void *, void *)
STUB_FUNC2(pthread_attr_getguardsize, PJT_ATTR_GETGUARDSIZE, int, void *, void *)
STUB_FUNC2(pthread_attr_getstackaddr, PJT_ATTR_GETSTACKADDR, int, void *, void *)
STUB_FUNC2(pthread_attr_getstacksize, PJT_ATTR_GETSTACKSIZE, int, void *, void *)
STUB_FUNC2(pthread_attr_getinheritsched, PJT_ATTR_GETINHERITSCHED, int, void *, void *)
STUB_FUNC2(pthread_attr_getschedparam, PJT_ATTR_GETSCHEDPARAM, int, void *, void *)
STUB_FUNC2(pthread_attr_getschedpolicy, PJT_ATTR_GETSCHEDPOLICY, int, void *, void *)
STUB_FUNC2(pthread_attr_getscope, PJT_ATTR_GETSCOPE, int, void *, void *)
STUB_FUNC1(pthread_attr_init, PJT_ATTR_INIT, int, void *)
STUB_FUNC2(pthread_attr_setdetachstate, PJT_ATTR_SETDETACHSTATE, int, void *, int)
STUB_FUNC2(pthread_attr_setguardsize, PJT_ATTR_SETGUARDSIZE, int, void *, size_t)
STUB_FUNC2(pthread_attr_setstackaddr, PJT_ATTR_SETSTACKADDR, int, void *, void *)
STUB_FUNC2(pthread_attr_setstacksize, PJT_ATTR_SETSTACKSIZE, int, void *, size_t)
STUB_FUNC2(pthread_attr_setinheritsched, PJT_ATTR_SETINHERITSCHED, int, void *, int)
STUB_FUNC2(pthread_attr_setschedparam, PJT_ATTR_SETSCHEDPARAM, int, void *, void *)
STUB_FUNC2(pthread_attr_setschedpolicy, PJT_ATTR_SETSCHEDPOLICY, int, void *, int)
STUB_FUNC2(pthread_attr_setscope, PJT_ATTR_SETSCOPE, int, void *, int)
STUB_FUNC1(pthread_cancel, PJT_CANCEL, int, void *)
STUB_FUNC1(pthread_cleanup_pop, PJT_CLEANUP_POP, int, int)
STUB_FUNC2(pthread_cleanup_push, PJT_CLEANUP_PUSH, void, void *, void *)
STUB_FUNC3(pthread_cond_timedwait, PJT_COND_TIMEDWAIT, int, void *, void *, void *)
STUB_FUNC1(pthread_detach, PJT_DETACH, int, void *)
STUB_FUNC2(pthread_equal, PJT_EQUAL, int, void *, void *)
STUB_FUNC1(pthread_exit, PJT_EXIT, void, void *)
STUB_FUNC2(pthread_join, PJT_JOIN, int, void *, void *)
STUB_FUNC2(pthread_kill, PJT_KILL, int, void *, int)
STUB_FUNC2(pthread_setcancelstate, PJT_SETCANCELSTATE, int, int, void *)
STUB_FUNC2(pthread_setcanceltype, PJT_SETCANCELTYPE, int, int, void *)
STUB_FUNC(pthread_testcancel, PJT_TESTCANCEL, void)
static int
stub_zero(void)
2002-09-19 01:09:49 +00:00
{
return (0);
}
static void *
stub_null(void)
{
return (NULL);
}
static struct pthread *
stub_self(void)
{
return (&main_thread);
}
static int
stub_main(void)
{
return (-1);
}
static int
stub_true(void)
{
return (1);
}
static void
stub_exit(void)
{
exit(0);
}