1 /* 2 * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 16 * 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 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: head/lib/libc/include/libc_private.h 213153 2010-09-25 01:57:47Z davidxu $ 30 * 31 * Private definitions for libc, libc_r and libpthread. 32 * 33 */ 34 35 #ifndef _LIBC_PRIVATE_H_ 36 #define _LIBC_PRIVATE_H_ 37 38 /* 39 * This global flag is non-zero when a process has created one 40 * or more threads. It is used to avoid calling locking functions 41 * when they are not required. 42 */ 43 extern int __isthreaded; 44 45 /* 46 * File lock contention is difficult to diagnose without knowing 47 * where locks were set. Allow a debug library to be built which 48 * records the source file and line number of each lock call. 49 */ 50 #ifdef _FLOCK_DEBUG 51 #define _FLOCKFILE(x) _flockfile_debug(x, __FILE__, __LINE__) 52 #else 53 #define _FLOCKFILE(x) _flockfile(x) 54 #endif 55 56 /* 57 * Macros for locking and unlocking FILEs. These test if the 58 * process is threaded to avoid locking when not required. 59 */ 60 #define FLOCKFILE(fp) if (__isthreaded) _FLOCKFILE(fp) 61 #define FUNLOCKFILE(fp) if (__isthreaded) _funlockfile(fp) 62 63 /* 64 * Initialise TLS static programs 65 */ 66 int __get_errno_GS_offset(void); 67 void *__get_errno_GOT_ptr(void); 68 69 struct statfs; 70 struct statvfs; 71 72 /* 73 * yplib internal interfaces 74 */ 75 #ifdef YP 76 int _yp_check(char **); 77 #endif 78 79 /* 80 * This is a pointer in the C run-time startup code. It is used 81 * by getprogname() and setprogname(). 82 */ 83 const char *__progname; 84 85 /* 86 * Function to clean up streams, called from abort() and exit(). 87 */ 88 extern void (*__cleanup)(void); 89 90 /* execve() with PATH processing to implement posix_spawnp() */ 91 int _execvpe(const char *, char * const *, char * const *); 92 void _nmalloc_thr_init(void); 93 94 struct dl_phdr_info; 95 int __elf_phdr_match_addr(struct dl_phdr_info *, void *); 96 97 #endif /* _LIBC_PRIVATE_H_ */ 98