libc_private.h revision 213153
135124Sjb/* 235124Sjb * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>. 335124Sjb * All rights reserved. 435124Sjb * 535124Sjb * Redistribution and use in source and binary forms, with or without 635124Sjb * modification, are permitted provided that the following conditions 735124Sjb * are met: 835124Sjb * 1. Redistributions of source code must retain the above copyright 935124Sjb * notice, this list of conditions and the following disclaimer. 1035124Sjb * 2. Redistributions in binary form must reproduce the above copyright 1135124Sjb * notice, this list of conditions and the following disclaimer in the 1235124Sjb * documentation and/or other materials provided with the distribution. 13165968Simp * 3. Neither the name of the author nor the names of any co-contributors 1435124Sjb * may be used to endorse or promote products derived from this software 1535124Sjb * without specific prior written permission. 1635124Sjb * 1735124Sjb * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 1835124Sjb * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1935124Sjb * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2035124Sjb * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2135124Sjb * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2235124Sjb * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2335124Sjb * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2435124Sjb * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2535124Sjb * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2635124Sjb * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2735124Sjb * SUCH DAMAGE. 2835124Sjb * 2950476Speter * $FreeBSD: head/lib/libc/include/libc_private.h 213153 2010-09-25 01:57:47Z davidxu $ 3035124Sjb * 3135124Sjb * Private definitions for libc, libc_r and libpthread. 3235124Sjb * 3335124Sjb */ 3435124Sjb 3535124Sjb#ifndef _LIBC_PRIVATE_H_ 3635124Sjb#define _LIBC_PRIVATE_H_ 37199606Sjhb#include <sys/_pthreadtypes.h> 3835124Sjb 3935124Sjb/* 4035124Sjb * This global flag is non-zero when a process has created one 4135124Sjb * or more threads. It is used to avoid calling locking functions 4235124Sjb * when they are not required. 4335124Sjb */ 4435124Sjbextern int __isthreaded; 4535124Sjb 4635124Sjb/* 4735124Sjb * File lock contention is difficult to diagnose without knowing 4835124Sjb * where locks were set. Allow a debug library to be built which 4935124Sjb * records the source file and line number of each lock call. 5035124Sjb */ 5135124Sjb#ifdef _FLOCK_DEBUG 5235124Sjb#define _FLOCKFILE(x) _flockfile_debug(x, __FILE__, __LINE__) 5335124Sjb#else 5471579Sdeischen#define _FLOCKFILE(x) _flockfile(x) 5535124Sjb#endif 5635124Sjb 5735124Sjb/* 5835124Sjb * Macros for locking and unlocking FILEs. These test if the 5935124Sjb * process is threaded to avoid locking when not required. 6035124Sjb */ 6135124Sjb#define FLOCKFILE(fp) if (__isthreaded) _FLOCKFILE(fp) 6271579Sdeischen#define FUNLOCKFILE(fp) if (__isthreaded) _funlockfile(fp) 6335124Sjb 6493399Smarkm/* 65106866Sdeischen * Indexes into the pthread jump table. 66106866Sdeischen * 67106866Sdeischen * Warning! If you change this type, you must also change the threads 68106866Sdeischen * libraries that reference it (libc_r, libpthread). 69106866Sdeischen */ 70106866Sdeischentypedef enum { 71156319Sdeischen PJT_ATFORK, 72156319Sdeischen PJT_ATTR_DESTROY, 73156319Sdeischen PJT_ATTR_GETDETACHSTATE, 74156319Sdeischen PJT_ATTR_GETGUARDSIZE, 75156319Sdeischen PJT_ATTR_GETINHERITSCHED, 76156319Sdeischen PJT_ATTR_GETSCHEDPARAM, 77156319Sdeischen PJT_ATTR_GETSCHEDPOLICY, 78156319Sdeischen PJT_ATTR_GETSCOPE, 79156319Sdeischen PJT_ATTR_GETSTACKADDR, 80156319Sdeischen PJT_ATTR_GETSTACKSIZE, 81156319Sdeischen PJT_ATTR_INIT, 82156319Sdeischen PJT_ATTR_SETDETACHSTATE, 83156319Sdeischen PJT_ATTR_SETGUARDSIZE, 84156319Sdeischen PJT_ATTR_SETINHERITSCHED, 85156319Sdeischen PJT_ATTR_SETSCHEDPARAM, 86156319Sdeischen PJT_ATTR_SETSCHEDPOLICY, 87156319Sdeischen PJT_ATTR_SETSCOPE, 88156319Sdeischen PJT_ATTR_SETSTACKADDR, 89156319Sdeischen PJT_ATTR_SETSTACKSIZE, 90156319Sdeischen PJT_CANCEL, 91156319Sdeischen PJT_CLEANUP_POP, 92156319Sdeischen PJT_CLEANUP_PUSH, 93106866Sdeischen PJT_COND_BROADCAST, 94106866Sdeischen PJT_COND_DESTROY, 95106866Sdeischen PJT_COND_INIT, 96106866Sdeischen PJT_COND_SIGNAL, 97156319Sdeischen PJT_COND_TIMEDWAIT, 98106866Sdeischen PJT_COND_WAIT, 99156319Sdeischen PJT_DETACH, 100156319Sdeischen PJT_EQUAL, 101156319Sdeischen PJT_EXIT, 102106866Sdeischen PJT_GETSPECIFIC, 103156319Sdeischen PJT_JOIN, 104106866Sdeischen PJT_KEY_CREATE, 105106866Sdeischen PJT_KEY_DELETE, 106156319Sdeischen PJT_KILL, 107106866Sdeischen PJT_MAIN_NP, 108156319Sdeischen PJT_MUTEXATTR_DESTROY, 109156319Sdeischen PJT_MUTEXATTR_INIT, 110156319Sdeischen PJT_MUTEXATTR_SETTYPE, 111106866Sdeischen PJT_MUTEX_DESTROY, 112106866Sdeischen PJT_MUTEX_INIT, 113106866Sdeischen PJT_MUTEX_LOCK, 114106866Sdeischen PJT_MUTEX_TRYLOCK, 115106866Sdeischen PJT_MUTEX_UNLOCK, 116106866Sdeischen PJT_ONCE, 117106866Sdeischen PJT_RWLOCK_DESTROY, 118106866Sdeischen PJT_RWLOCK_INIT, 119106866Sdeischen PJT_RWLOCK_RDLOCK, 120106866Sdeischen PJT_RWLOCK_TRYRDLOCK, 121106866Sdeischen PJT_RWLOCK_TRYWRLOCK, 122106866Sdeischen PJT_RWLOCK_UNLOCK, 123106866Sdeischen PJT_RWLOCK_WRLOCK, 124106866Sdeischen PJT_SELF, 125156319Sdeischen PJT_SETCANCELSTATE, 126156319Sdeischen PJT_SETCANCELTYPE, 127106866Sdeischen PJT_SETSPECIFIC, 128106866Sdeischen PJT_SIGMASK, 129156319Sdeischen PJT_TESTCANCEL, 130201546Sdavidxu PJT_CLEANUP_POP_IMP, 131201546Sdavidxu PJT_CLEANUP_PUSH_IMP, 132213153Sdavidxu PJT_CANCEL_ENTER, 133213153Sdavidxu PJT_CANCEL_LEAVE, 134106866Sdeischen PJT_MAX 135106866Sdeischen} pjt_index_t; 136106866Sdeischen 137106870Sdeischentypedef int (*pthread_func_t)(void); 138106880Sdeischentypedef pthread_func_t pthread_func_entry_t[2]; 139106866Sdeischen 140106880Sdeischenextern pthread_func_entry_t __thr_jtable[]; 141106866Sdeischen 142106866Sdeischen/* 143111618Snectar * yplib internal interfaces 144111618Snectar */ 145111618Snectar#ifdef YP 146111618Snectarint _yp_check(char **); 147111618Snectar#endif 148111618Snectar 149133754Sdfr/* 150133754Sdfr * Initialise TLS for static programs 151133754Sdfr */ 152133754Sdfrvoid _init_tls(void); 153111618Snectar 154111618Snectar/* 155199606Sjhb * Provides pthread_once()-like functionality for both single-threaded 156199606Sjhb * and multi-threaded applications. 157199606Sjhb */ 158199606Sjhbint _once(pthread_once_t *, void (*)(void)); 159199606Sjhb 160199606Sjhb/* 161133754Sdfr * Set the TLS thread pointer 162133754Sdfr */ 163133754Sdfrvoid _set_tp(void *tp); 164133754Sdfr 165133754Sdfr/* 16693399Smarkm * This is a pointer in the C run-time startup code. It is used 16793399Smarkm * by getprogname() and setprogname(). 16893399Smarkm */ 16993399Smarkmextern const char *__progname; 17093399Smarkm 171122069Sdeischen/* 172182225Sjasone * This function is used by the threading libraries to notify malloc that a 173182225Sjasone * thread is exiting. 174182225Sjasone */ 175182225Sjasonevoid _malloc_thread_cleanup(void); 176182225Sjasone 177182225Sjasone/* 178154248Sjasone * These functions are used by the threading libraries in order to protect 179154248Sjasone * malloc across fork(). 180122069Sdeischen */ 181154248Sjasonevoid _malloc_prefork(void); 182154248Sjasonevoid _malloc_postfork(void); 183122069Sdeischen 184150040Sstefanf/* 185150040Sstefanf * Function to clean up streams, called from abort() and exit(). 186150040Sstefanf */ 187150040Sstefanfextern void (*__cleanup)(void); 188150040Sstefanf 189171219Speter/* 190171219Speter * Get kern.osreldate to detect ABI revisions. Explicitly 191171219Speter * ignores value of $OSVERSION and caches result. Prototypes 192171219Speter * for the wrapped "new" pad-less syscalls are here for now. 193171219Speter */ 194171219Speterextern int __getosreldate(void); 195171219Speter#include <sys/_types.h> 196171219Speter/* Without pad */ 197171219Speterextern __off_t __sys_lseek(int, __off_t, int); 198171219Speterextern int __sys_ftruncate(int, __off_t); 199171219Speterextern int __sys_truncate(const char *, __off_t); 200171219Speterextern __ssize_t __sys_pread(int, void *, __size_t, __off_t); 201171219Speterextern __ssize_t __sys_pwrite(int, const void *, __size_t, __off_t); 202171219Speterextern void * __sys_mmap(void *, __size_t, int, int, int, __off_t); 203171219Speter 204171219Speter/* With pad */ 205171219Speterextern __off_t __sys_freebsd6_lseek(int, int, __off_t, int); 206171219Speterextern int __sys_freebsd6_ftruncate(int, int, __off_t); 207171219Speterextern int __sys_freebsd6_truncate(const char *, int, __off_t); 208171219Speterextern __ssize_t __sys_freebsd6_pread(int, void *, __size_t, int, __off_t); 209171219Speterextern __ssize_t __sys_freebsd6_pwrite(int, const void *, __size_t, int, __off_t); 210171219Speterextern void * __sys_freebsd6_mmap(void *, __size_t, int, int, int, int, __off_t); 211171219Speter 212177911Sdfr/* Without back-compat translation */ 213177911Sdfrextern int __sys_fcntl(int, int, ...); 214177911Sdfr 215179947Sed/* execve() with PATH processing to implement posix_spawnp() */ 216179947Sedint _execvpe(const char *, char * const *, char * const *); 217179947Sed 218211416Skibint _elf_aux_info(int aux, void *buf, int buflen); 219211706Skibstruct dl_phdr_info; 220211706Skibint __elf_phdr_match_addr(struct dl_phdr_info *, void *); 221211416Skib 222213153Sdavidxuvoid _pthread_cancel_enter(int); 223213153Sdavidxuvoid _pthread_cancel_leave(int); 224213153Sdavidxu 22535124Sjb#endif /* _LIBC_PRIVATE_H_ */ 226