412ef5da8a
This seems to be required by recent clang asan. I do not see other way than put the symbol under FBSD_1.0 version. PR: 251112 Reported by: Andrew Stitcher <astitcher@apache.org> Reviewed by: emaste Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D27389
342 lines
14 KiB
C
342 lines
14 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2001 Daniel Eischen <deischen@FreeBSD.org>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <signal.h>
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#include <pthread.h>
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#include <stdlib.h>
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#include <errno.h>
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#include "libc_private.h"
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/*
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* Weak symbols: All libc internal usage of these functions should
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* use the weak symbol versions (_pthread_XXX). If libpthread is
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* linked, it will override these functions with (non-weak) routines.
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* The _pthread_XXX functions are provided solely for internal libc
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* usage to avoid unwanted cancellation points and to differentiate
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* between application locks and libc locks (threads holding the
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* latter can't be allowed to exit/terminate).
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*/
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/* Define a null pthread structure just to satisfy _pthread_self. */
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struct pthread {
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};
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static struct pthread main_thread;
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static int stub_main(void);
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static void *stub_null(void);
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static struct pthread *stub_self(void);
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static int stub_zero(void);
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static int stub_fail(void);
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static int stub_true(void);
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static void stub_exit(void);
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static int stub_esrch(void);
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#define PJT_DUAL_ENTRY(entry) \
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(pthread_func_t)entry, (pthread_func_t)entry
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pthread_func_entry_t __thr_jtable[PJT_MAX] = {
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[PJT_ATFORK] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_DESTROY] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_GETDETACHSTATE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_GETGUARDSIZE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_GETINHERITSCHED] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_GETSCHEDPARAM] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_GETSCHEDPOLICY] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_GETSCOPE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_GETSTACKADDR] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_GETSTACKSIZE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_INIT] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_SETDETACHSTATE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_SETGUARDSIZE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_SETINHERITSCHED] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_SETSCHEDPARAM] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_SETSCHEDPOLICY] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_SETSCOPE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_SETSTACKADDR] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_SETSTACKSIZE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_CANCEL] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_CLEANUP_POP] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_CLEANUP_PUSH] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_COND_BROADCAST] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_COND_DESTROY] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_COND_INIT] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_COND_SIGNAL] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_COND_TIMEDWAIT] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_COND_WAIT] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_DETACH] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_EQUAL] = {PJT_DUAL_ENTRY(stub_true)},
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[PJT_EXIT] = {PJT_DUAL_ENTRY(stub_exit)},
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[PJT_GETSPECIFIC] = {PJT_DUAL_ENTRY(stub_null)},
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[PJT_JOIN] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_KEY_CREATE] = {PJT_DUAL_ENTRY(stub_fail)},
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[PJT_KEY_DELETE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_KILL] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_MAIN_NP] = {PJT_DUAL_ENTRY(stub_main)},
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[PJT_MUTEXATTR_DESTROY] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_MUTEXATTR_INIT] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_MUTEXATTR_SETTYPE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_MUTEX_DESTROY] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_MUTEX_INIT] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_MUTEX_LOCK] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_MUTEX_TRYLOCK] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_MUTEX_UNLOCK] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ONCE] = {PJT_DUAL_ENTRY(stub_fail)},
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[PJT_RWLOCK_DESTROY] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_RWLOCK_INIT] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_RWLOCK_RDLOCK] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_RWLOCK_TRYRDLOCK] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_RWLOCK_TRYWRLOCK] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_RWLOCK_UNLOCK] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_RWLOCK_WRLOCK] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_SELF] = {PJT_DUAL_ENTRY(stub_self)},
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[PJT_SETCANCELSTATE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_SETCANCELTYPE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_SETSPECIFIC] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_SIGMASK] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_TESTCANCEL] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_CLEANUP_POP_IMP] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_CLEANUP_PUSH_IMP] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_CANCEL_ENTER] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_CANCEL_LEAVE] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_MUTEX_CONSISTENT] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_MUTEXATTR_GETROBUST] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_MUTEXATTR_SETROBUST] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_GETTHREADID_NP] = {PJT_DUAL_ENTRY(stub_zero)},
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[PJT_ATTR_GET_NP] = {PJT_DUAL_ENTRY(stub_esrch)},
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};
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/*
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* Weak aliases for exported (pthread_*) and internal (_pthread_*) routines.
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*/
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#define WEAK_REF(sym, alias) __weak_reference(sym, alias)
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#define FUNC_TYPE(name) __CONCAT(name, _func_t)
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#define FUNC_INT(name) __CONCAT(name, _int)
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#define FUNC_EXP(name) __CONCAT(name, _exp)
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#define STUB_FUNC(name, idx, ret) \
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static ret FUNC_EXP(name)(void) __used; \
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static ret FUNC_INT(name)(void) __used; \
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WEAK_REF(FUNC_EXP(name), name); \
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WEAK_REF(FUNC_INT(name), __CONCAT(_, name)); \
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typedef ret (*FUNC_TYPE(name))(void); \
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static ret FUNC_EXP(name)(void) \
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{ \
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FUNC_TYPE(name) func; \
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func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
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return (func()); \
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} \
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static ret FUNC_INT(name)(void) \
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{ \
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FUNC_TYPE(name) func; \
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func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
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return (func()); \
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}
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#define STUB_FUNC1(name, idx, ret, p0_type) \
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static ret FUNC_EXP(name)(p0_type) __used; \
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static ret FUNC_INT(name)(p0_type) __used; \
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WEAK_REF(FUNC_EXP(name), name); \
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WEAK_REF(FUNC_INT(name), __CONCAT(_, name)); \
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typedef ret (*FUNC_TYPE(name))(p0_type); \
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static ret FUNC_EXP(name)(p0_type p0) \
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{ \
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FUNC_TYPE(name) func; \
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func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
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return (func(p0)); \
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} \
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static ret FUNC_INT(name)(p0_type p0) \
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{ \
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FUNC_TYPE(name) func; \
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func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
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return (func(p0)); \
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}
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#define STUB_FUNC2(name, idx, ret, p0_type, p1_type) \
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static ret FUNC_EXP(name)(p0_type, p1_type) __used; \
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static ret FUNC_INT(name)(p0_type, p1_type) __used; \
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WEAK_REF(FUNC_EXP(name), name); \
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WEAK_REF(FUNC_INT(name), __CONCAT(_, name)); \
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typedef ret (*FUNC_TYPE(name))(p0_type, p1_type); \
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static ret FUNC_EXP(name)(p0_type p0, p1_type p1) \
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{ \
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FUNC_TYPE(name) func; \
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func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
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return (func(p0, p1)); \
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} \
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static ret FUNC_INT(name)(p0_type p0, p1_type p1) \
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{ \
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FUNC_TYPE(name) func; \
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func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
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return (func(p0, p1)); \
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}
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#define STUB_FUNC3(name, idx, ret, p0_type, p1_type, p2_type) \
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static ret FUNC_EXP(name)(p0_type, p1_type, p2_type) __used; \
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static ret FUNC_INT(name)(p0_type, p1_type, p2_type) __used; \
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WEAK_REF(FUNC_EXP(name), name); \
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WEAK_REF(FUNC_INT(name), __CONCAT(_, name)); \
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typedef ret (*FUNC_TYPE(name))(p0_type, p1_type, p2_type); \
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static ret FUNC_EXP(name)(p0_type p0, p1_type p1, p2_type p2) \
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{ \
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FUNC_TYPE(name) func; \
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func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
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return (func(p0, p1, p2)); \
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} \
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static ret FUNC_INT(name)(p0_type p0, p1_type p1, p2_type p2) \
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{ \
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FUNC_TYPE(name) func; \
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func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
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return (func(p0, p1, p2)); \
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}
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STUB_FUNC1(pthread_cond_broadcast, PJT_COND_BROADCAST, int, void *)
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STUB_FUNC1(pthread_cond_destroy, PJT_COND_DESTROY, int, void *)
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STUB_FUNC2(pthread_cond_init, PJT_COND_INIT, int, void *, void *)
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STUB_FUNC1(pthread_cond_signal, PJT_COND_SIGNAL, int, void *)
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STUB_FUNC2(pthread_cond_wait, PJT_COND_WAIT, int, void *, void *)
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STUB_FUNC1(pthread_getspecific, PJT_GETSPECIFIC, void *, pthread_key_t)
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STUB_FUNC2(pthread_key_create, PJT_KEY_CREATE, int, void *, void *)
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STUB_FUNC1(pthread_key_delete, PJT_KEY_DELETE, int, pthread_key_t)
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STUB_FUNC(pthread_main_np, PJT_MAIN_NP, int)
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STUB_FUNC1(pthread_mutex_destroy, PJT_MUTEX_DESTROY, int, void *)
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STUB_FUNC2(pthread_mutex_init, PJT_MUTEX_INIT, int, void *, void *)
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STUB_FUNC1(pthread_mutex_lock, PJT_MUTEX_LOCK, int, void *)
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STUB_FUNC1(pthread_mutex_trylock, PJT_MUTEX_TRYLOCK, int, void *)
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STUB_FUNC1(pthread_mutex_unlock, PJT_MUTEX_UNLOCK, int, void *)
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STUB_FUNC1(pthread_mutex_consistent, PJT_MUTEX_CONSISTENT, int, void *)
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STUB_FUNC1(pthread_mutexattr_destroy, PJT_MUTEXATTR_DESTROY, int, void *)
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STUB_FUNC1(pthread_mutexattr_init, PJT_MUTEXATTR_INIT, int, void *)
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STUB_FUNC2(pthread_mutexattr_settype, PJT_MUTEXATTR_SETTYPE, int, void *, int)
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STUB_FUNC2(pthread_mutexattr_getrobust, PJT_MUTEXATTR_GETROBUST, int, void *,
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int *)
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STUB_FUNC2(pthread_mutexattr_setrobust, PJT_MUTEXATTR_SETROBUST, int, void *,
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int)
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STUB_FUNC2(pthread_once, PJT_ONCE, int, void *, void *)
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STUB_FUNC1(pthread_rwlock_destroy, PJT_RWLOCK_DESTROY, int, void *)
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STUB_FUNC2(pthread_rwlock_init, PJT_RWLOCK_INIT, int, void *, void *)
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STUB_FUNC1(pthread_rwlock_rdlock, PJT_RWLOCK_RDLOCK, int, void *)
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STUB_FUNC1(pthread_rwlock_tryrdlock, PJT_RWLOCK_TRYRDLOCK, int, void *)
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STUB_FUNC1(pthread_rwlock_trywrlock, PJT_RWLOCK_TRYWRLOCK, int, void *)
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STUB_FUNC1(pthread_rwlock_unlock, PJT_RWLOCK_UNLOCK, int, void *)
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STUB_FUNC1(pthread_rwlock_wrlock, PJT_RWLOCK_WRLOCK, int, void *)
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STUB_FUNC(pthread_self, PJT_SELF, pthread_t)
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STUB_FUNC(pthread_getthreadid_np, PJT_GETTHREADID_NP, int)
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STUB_FUNC2(pthread_setspecific, PJT_SETSPECIFIC, int, pthread_key_t, void *)
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STUB_FUNC3(pthread_sigmask, PJT_SIGMASK, int, int, void *, void *)
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STUB_FUNC3(pthread_atfork, PJT_ATFORK, int, void *, void *, void*)
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STUB_FUNC1(pthread_attr_destroy, PJT_ATTR_DESTROY, int, void *);
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STUB_FUNC2(pthread_attr_getdetachstate, PJT_ATTR_GETDETACHSTATE, int, void *, void *)
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STUB_FUNC2(pthread_attr_getguardsize, PJT_ATTR_GETGUARDSIZE, int, void *, void *)
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STUB_FUNC2(pthread_attr_getstackaddr, PJT_ATTR_GETSTACKADDR, int, void *, void *)
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STUB_FUNC2(pthread_attr_getstacksize, PJT_ATTR_GETSTACKSIZE, int, void *, void *)
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STUB_FUNC2(pthread_attr_getinheritsched, PJT_ATTR_GETINHERITSCHED, int, void *, void *)
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STUB_FUNC2(pthread_attr_getschedparam, PJT_ATTR_GETSCHEDPARAM, int, void *, void *)
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STUB_FUNC2(pthread_attr_getschedpolicy, PJT_ATTR_GETSCHEDPOLICY, int, void *, void *)
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STUB_FUNC2(pthread_attr_getscope, PJT_ATTR_GETSCOPE, int, void *, void *)
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STUB_FUNC1(pthread_attr_init, PJT_ATTR_INIT, int, void *)
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STUB_FUNC2(pthread_attr_setdetachstate, PJT_ATTR_SETDETACHSTATE, int, void *, int)
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STUB_FUNC2(pthread_attr_setguardsize, PJT_ATTR_SETGUARDSIZE, int, void *, size_t)
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STUB_FUNC2(pthread_attr_setstackaddr, PJT_ATTR_SETSTACKADDR, int, void *, void *)
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STUB_FUNC2(pthread_attr_setstacksize, PJT_ATTR_SETSTACKSIZE, int, void *, size_t)
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STUB_FUNC2(pthread_attr_setinheritsched, PJT_ATTR_SETINHERITSCHED, int, void *, int)
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STUB_FUNC2(pthread_attr_setschedparam, PJT_ATTR_SETSCHEDPARAM, int, void *, void *)
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STUB_FUNC2(pthread_attr_setschedpolicy, PJT_ATTR_SETSCHEDPOLICY, int, void *, int)
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STUB_FUNC2(pthread_attr_setscope, PJT_ATTR_SETSCOPE, int, void *, int)
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STUB_FUNC1(pthread_cancel, PJT_CANCEL, int, void *)
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STUB_FUNC1(pthread_cleanup_pop, PJT_CLEANUP_POP, int, int)
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STUB_FUNC2(pthread_cleanup_push, PJT_CLEANUP_PUSH, void, void *, void *)
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STUB_FUNC3(pthread_cond_timedwait, PJT_COND_TIMEDWAIT, int, void *, void *, void *)
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STUB_FUNC1(pthread_detach, PJT_DETACH, int, void *)
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STUB_FUNC2(pthread_equal, PJT_EQUAL, int, void *, void *)
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STUB_FUNC1(pthread_exit, PJT_EXIT, void, void *)
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STUB_FUNC2(pthread_join, PJT_JOIN, int, void *, void *)
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STUB_FUNC2(pthread_kill, PJT_KILL, int, void *, int)
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STUB_FUNC2(pthread_setcancelstate, PJT_SETCANCELSTATE, int, int, void *)
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STUB_FUNC2(pthread_setcanceltype, PJT_SETCANCELTYPE, int, int, void *)
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STUB_FUNC(pthread_testcancel, PJT_TESTCANCEL, void)
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STUB_FUNC1(__pthread_cleanup_pop_imp, PJT_CLEANUP_POP_IMP, void, int)
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STUB_FUNC3(__pthread_cleanup_push_imp, PJT_CLEANUP_PUSH_IMP, void, void *,
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void *, void *)
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STUB_FUNC1(_pthread_cancel_enter, PJT_CANCEL_ENTER, void, int)
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STUB_FUNC1(_pthread_cancel_leave, PJT_CANCEL_LEAVE, void, int)
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STUB_FUNC2(pthread_attr_get_np, PJT_ATTR_GET_NP, int, pthread_t, pthread_attr_t *)
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static int
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stub_zero(void)
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{
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return (0);
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}
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static void *
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stub_null(void)
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{
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return (NULL);
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}
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static struct pthread *
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stub_self(void)
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{
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return (&main_thread);
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}
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|
static int
|
|
stub_fail(void)
|
|
{
|
|
return (ENOSYS);
|
|
}
|
|
|
|
static int
|
|
stub_main(void)
|
|
{
|
|
return (-1);
|
|
}
|
|
|
|
static int
|
|
stub_true(void)
|
|
{
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
stub_exit(void)
|
|
{
|
|
exit(0);
|
|
}
|
|
|
|
static int
|
|
stub_esrch(void)
|
|
{
|
|
return (ESRCH);
|
|
}
|