c2c3554884
* lib/libc.c (__mes_debug): New function. Use it for debug printing and in stubs throughout.
129 lines
2.6 KiB
C
129 lines
2.6 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* Mes --- Maxwell Equations of Software
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* Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of Mes.
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*
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* Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libmes.h>
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#include <stdint.h>
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#include <time.h>
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#include <sys/times.h>
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#include <sys/time.h>
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FILE *
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freopen (char const *file_name, char const *opentype, FILE *stream)
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{
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fclose (stream);
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return fopen (file_name, opentype);
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}
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clock_t
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times (struct tms *buffer)
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{
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static int stub = 0;
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if (__mes_debug () && !stub)
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eputs ("times stub\n");
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stub = 1;
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return 0;
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}
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unsigned int
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sleep (unsigned int seconds)
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{
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struct timespec requested_time;
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struct timespec remaining;
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requested_time.tv_sec = seconds;
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requested_time.tv_nsec = 0;
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return nanosleep (&requested_time, &remaining);
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}
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// gcc-3.2
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double
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__divdi3 (double a, double b)
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{
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static int stub = 0;
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if (__mes_debug () && !stub)
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eputs ("__divdi3 stub\n");
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stub = 1;
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return ((int)a / (int)b);
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}
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double
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__moddi3 (double a, double b)
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{
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static int stub = 0;
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if (__mes_debug () && !stub)
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eputs ("__moddi3 stub\n");
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stub = 1;
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return ((int) a %(int)b);
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}
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// gcc-3.4
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void
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unsetenv (char const *name)
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{
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int length = strlen (name);
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char **p = environ;
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while (*p)
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{
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if (!strncmp (name, *p, length) && *(*p + length) == '=')
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{
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char **q = p;
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q[0] = q[1];
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while (*q++)
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q[0] = q[1];
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}
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p++;
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}
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}
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// gcc-3.0
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int
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atexit (void (*function) (void))
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{
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__call_at_exit = function;
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}
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unsigned int
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alarm (unsigned int seconds)
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{
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#if !__MESC__
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struct itimerval old;
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struct itimerval new;
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new.it_interval.tv_usec = 0;
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new.it_interval.tv_sec = 0;
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new.it_value.tv_usec = 0;
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new.it_value.tv_sec = (long int) seconds;
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if (setitimer (ITIMER_REAL, &new, &old) < 0)
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return 0;
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return old.it_value.tv_sec;
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#endif
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}
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// gcc-2.95.3
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struct passwd *
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getpwnam (const char *NAME)
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{
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static int stub = 0;
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if (__mes_debug () && !stub)
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eputs ("getpwnam stub\n");
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stub = 1;
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errno = 0;
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return 0;
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}
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