2 * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of any co-contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Private definitions for libc, libc_r and libpthread.
35 #ifndef _LIBC_PRIVATE_H_
36 #define _LIBC_PRIVATE_H_
37 #include <sys/_pthreadtypes.h>
40 * This global flag is non-zero when a process has created one
41 * or more threads. It is used to avoid calling locking functions
42 * when they are not required.
44 extern int __isthreaded;
47 * File lock contention is difficult to diagnose without knowing
48 * where locks were set. Allow a debug library to be built which
49 * records the source file and line number of each lock call.
52 #define _FLOCKFILE(x) _flockfile_debug(x, __FILE__, __LINE__)
54 #define _FLOCKFILE(x) _flockfile(x)
58 * Macros for locking and unlocking FILEs. These test if the
59 * process is threaded to avoid locking when not required.
61 #define FLOCKFILE(fp) if (__isthreaded) _FLOCKFILE(fp)
62 #define FUNLOCKFILE(fp) if (__isthreaded) _funlockfile(fp)
65 * Indexes into the pthread jump table.
67 * Warning! If you change this type, you must also change the threads
68 * libraries that reference it (libc_r, libpthread).
73 PJT_ATTR_GETDETACHSTATE,
74 PJT_ATTR_GETGUARDSIZE,
75 PJT_ATTR_GETINHERITSCHED,
76 PJT_ATTR_GETSCHEDPARAM,
77 PJT_ATTR_GETSCHEDPOLICY,
79 PJT_ATTR_GETSTACKADDR,
80 PJT_ATTR_GETSTACKSIZE,
82 PJT_ATTR_SETDETACHSTATE,
83 PJT_ATTR_SETGUARDSIZE,
84 PJT_ATTR_SETINHERITSCHED,
85 PJT_ATTR_SETSCHEDPARAM,
86 PJT_ATTR_SETSCHEDPOLICY,
88 PJT_ATTR_SETSTACKADDR,
89 PJT_ATTR_SETSTACKSIZE,
108 PJT_MUTEXATTR_DESTROY,
110 PJT_MUTEXATTR_SETTYPE,
120 PJT_RWLOCK_TRYRDLOCK,
121 PJT_RWLOCK_TRYWRLOCK,
131 PJT_CLEANUP_PUSH_IMP,
137 typedef int (*pthread_func_t)(void);
138 typedef pthread_func_t pthread_func_entry_t[2];
140 extern pthread_func_entry_t __thr_jtable[];
143 * yplib internal interfaces
146 int _yp_check(char **);
150 * Initialise TLS for static programs
152 void _init_tls(void);
155 * Provides pthread_once()-like functionality for both single-threaded
156 * and multi-threaded applications.
158 int _once(pthread_once_t *, void (*)(void));
161 * Set the TLS thread pointer
163 void _set_tp(void *tp);
166 * This is a pointer in the C run-time startup code. It is used
167 * by getprogname() and setprogname().
169 extern const char *__progname;
172 * This function is used by the threading libraries to notify malloc that a
175 void _malloc_thread_cleanup(void);
178 * These functions are used by the threading libraries in order to protect
179 * malloc across fork().
181 void _malloc_prefork(void);
182 void _malloc_postfork(void);
185 * Function to clean up streams, called from abort() and exit().
187 extern void (*__cleanup)(void);
190 * Get kern.osreldate to detect ABI revisions. Explicitly
191 * ignores value of $OSVERSION and caches result. Prototypes
192 * for the wrapped "new" pad-less syscalls are here for now.
194 extern int __getosreldate(void);
195 #include <sys/_types.h>
197 extern __off_t __sys_lseek(int, __off_t, int);
198 extern int __sys_ftruncate(int, __off_t);
199 extern int __sys_truncate(const char *, __off_t);
200 extern __ssize_t __sys_pread(int, void *, __size_t, __off_t);
201 extern __ssize_t __sys_pwrite(int, const void *, __size_t, __off_t);
202 extern void * __sys_mmap(void *, __size_t, int, int, int, __off_t);
205 extern __off_t __sys_freebsd6_lseek(int, int, __off_t, int);
206 extern int __sys_freebsd6_ftruncate(int, int, __off_t);
207 extern int __sys_freebsd6_truncate(const char *, int, __off_t);
208 extern __ssize_t __sys_freebsd6_pread(int, void *, __size_t, int, __off_t);
209 extern __ssize_t __sys_freebsd6_pwrite(int, const void *, __size_t, int, __off_t);
210 extern void * __sys_freebsd6_mmap(void *, __size_t, int, int, int, int, __off_t);
212 /* Without back-compat translation */
213 extern int __sys_fcntl(int, int, ...);
215 /* execve() with PATH processing to implement posix_spawnp() */
216 int _execvpe(const char *, char * const *, char * const *);
218 int _elf_aux_info(int aux, void *buf, int buflen);
220 int __elf_phdr_match_addr(struct dl_phdr_info *, void *);
222 void _pthread_cancel_enter(int);
223 void _pthread_cancel_leave(int);
225 #endif /* _LIBC_PRIVATE_H_ */