1 /* Miscellaneous support functions for dynamic linker
2 Copyright (C) 1997, 1998 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
28 #include <stdio-common/_itoa.h>
30 /* We have prototype anywhere. */
31 extern ssize_t __libc_write __P ((int __fd, __const __ptr_t __buf,
35 /* This is the only dl-sysdep.c function that is actually needed at run-time
39 _dl_sysdep_open_zero_fill (void)
41 return __open ("/dev/zero", O_RDONLY);
45 /* Read the whole contents of FILE into new mmap'd space with given
46 protections. *SIZEP gets the size of the file. */
49 _dl_sysdep_read_whole_file (const char *file, size_t *sizep, int prot)
53 int fd = __open (file, O_RDONLY);
56 if (__fxstat (_STAT_VER, fd, &st) < 0
57 /* No need to map the file if it is empty. */
62 /* Map a copy of the file contents. */
63 result = __mmap (0, st.st_size, prot,
73 if (result == MAP_FAILED)
83 /* Descriptor to write debug messages to. */
88 _dl_sysdep_output (int fd, const char *msg, ...)
95 size_t len = strlen (msg);
96 __libc_write (fd, msg, len);
97 msg = va_arg (ap, const char *);
105 _dl_debug_message (int new_line, const char *msg, ...)
107 /* We print the strings we get passed one after the other but start all
108 lines using the current PID. */
118 /* Get the next argument. */
119 msg = va_arg (ap, const char *);
124 /* We actually will print something in this line. So print the
125 PID now if needed. */
128 char buf[7] = "00000:\t";
129 assert (pid >= 0 && pid < 100000);
130 _itoa_word (pid, &buf[5], 10, 0);
131 __libc_write (_dl_debug_fd, buf, 7);
135 endp = strchr (msg, '\n');
138 __libc_write (_dl_debug_fd, msg, strlen (msg));
139 msg = va_arg (ap, const char *);
143 __libc_write (_dl_debug_fd, msg, endp - msg + 1);