183 lines
3.8 KiB
C
183 lines
3.8 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2016,2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of GNU Mes.
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*
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* GNU 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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* GNU 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 GNU 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 <fcntl.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#if __MESC__ && __i386__
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#include <linux/x86-mes/mes.c>
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#elif __MESC__ && __x86_64__
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#include <linux/x86_64-mes/mes.c>
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#elif __i386__
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#include <linux/x86-mes-gcc/mes.c>
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#elif __x86_64__
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#include <linux/x86_64-mes-gcc/mes.c>
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#else
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#error arch not supported
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#endif
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int
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fork ()
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{
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return _sys_call (SYS_fork);
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}
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ssize_t
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read (int filedes, void *buffer, size_t size)
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{
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ssize_t bytes = _sys_call3 (SYS_read, (int)filedes, (long)buffer, (long)size);
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if (__mes_debug () > 3)
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{
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if (bytes == 1)
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{
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eputs ("read fd="); eputs (itoa ((int)filedes)); eputs (" c="); eputc (*(char*)buffer); eputs ("\n");
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}
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else
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{
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eputs ("read fd="); eputs (itoa ((int)filedes));
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eputs (" bytes="); eputs (itoa (bytes)); eputs ("\n");
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}
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}
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return bytes;
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}
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int
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_open3 (char const *file_name, int flags, int mask)
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{
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#if !MES_BOOTSTRAP
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if (!flags)
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{
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_ungetc_pos = -1;
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_ungetc_fd = -1;
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}
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#endif
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int r = _sys_call3 (SYS_open, (long)file_name, (int)flags, (int)mask);
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return r;
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}
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int
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_open2 (char const *file_name, int flags)
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{
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int mask = 0777;
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return _open3 (file_name, flags, mask);
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}
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int
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open (char const *file_name, int flags, ...)
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{
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va_list ap;
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va_start (ap, flags);
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int mask = va_arg (ap, int);
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int r = _open3 (file_name, flags, mask);
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va_end (ap);
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return r;
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}
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pid_t
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waitpid (pid_t pid, int *status_ptr, int options)
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{
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#if __i386__
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return _sys_call3 (SYS_waitpid, (long)pid, (long)status_ptr, (int)options);
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#elif __x86_64__
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return _sys_call4 (SYS_wait4, (long)pid, (long)status_ptr, (int)options, 0);
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#else
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#error arch not supported
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#endif
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}
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int
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execve (char const* file_name, char *const argv[], char *const env[])
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{
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return _sys_call3 (SYS_execve, (long)file_name, (long)argv, (long)env);
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}
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int
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chmod (char const *file_name, mode_t mask)
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{
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return _sys_call2 (SYS_chmod, (long)file_name, (long)mask);
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}
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int
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access (char const *file_name, int how)
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{
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return _sys_call2 (SYS_access, (long)file_name, (int)how);
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}
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long
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brk (void *addr)
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{
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return _sys_call1 (SYS_brk, (long)addr);
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}
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int
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ioctl (int filedes, unsigned long command, ...)
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{
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va_list ap;
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va_start (ap, command);
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int data = va_arg (ap, int);
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int r = _sys_call3 (SYS_ioctl, (int)filedes, (long)command, (int)data);
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va_end (ap);
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return r;
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}
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int
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fsync (int filedes)
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{
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return _sys_call1 (SYS_fsync, (int)filedes);
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}
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char *
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getcwd (char *buffer, size_t size)
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{
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int r = _sys_call2 (SYS_getcwd, (long)buffer, (long)size);
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if (r >= 0)
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return buffer;
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return 0;
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}
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int
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dup (int old)
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{
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return _sys_call1 (SYS_dup, (int)old);
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}
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int
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dup2 (int old, int new)
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{
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return _sys_call2 (SYS_dup2, (int)old, (int)new);
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}
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int
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unlink (char const *file_name)
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{
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return _sys_call1 (SYS_unlink, (long)file_name);
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}
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#include "linux/clock_gettime.c"
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#include "linux/gettimeofday.c"
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#include "linux/time.c"
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