--- /dev/null
+/* ==== machdep.c ============================================================
+ * Copyright (c) 1993, 1994 Chris Provenzano, proven@athena.mit.edu
+ *
+ * Copyright (c) 1993 by Chris Provenzano, proven@mit.edu
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Chris Provenzano.
+ * 4. The name of Chris Provenzano may not be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Description : Machine dependent functions for NetBSD on i386
+ *
+ * 1.00 93/08/04 proven
+ * -Started coding this file.
+ *
+ * m68k work from David Leonard <david.leonard@it.uq.edu.au>.
+ *
+ */
+
+#ifndef lint
+static const char rcsid[] = "$Id: machdep.c,v 1.1 1997/04/13 17:13:08 briggs Exp $";
+#endif
+
+#include "pthread.h"
+
+/* ==========================================================================
+ * machdep_save_state()
+ */
+int machdep_save_state(void)
+{
+ return( _setjmp(pthread_run->machdep_data.machdep_state) );
+}
+
+/* ==========================================================================
+ * machdep_restore_state()
+ */
+void machdep_restore_state(void)
+{
+ _longjmp(pthread_run->machdep_data.machdep_state, 1);
+}
+
+/* ==========================================================================
+ * machdep_set_thread_timer()
+ */
+void machdep_set_thread_timer(struct machdep_pthread *machdep_pthread)
+{
+ if (setitimer(ITIMER_VIRTUAL, &(machdep_pthread->machdep_timer), NULL)) {
+ PANIC();
+ }
+}
+
+/* ==========================================================================
+ * machdep_unset_thread_timer()
+ */
+void machdep_unset_thread_timer(struct machdep_pthread *machdep_pthread)
+{
+ struct itimerval zeroval = { { 0, 0 }, { 0, 0 } };
+
+ if (setitimer(ITIMER_VIRTUAL, &zeroval, NULL)) {
+ PANIC();
+ }
+}
+
+/* ==========================================================================
+ * machdep_pthread_cleanup()
+ */
+void *machdep_pthread_cleanup(struct machdep_pthread *machdep_pthread)
+{
+ return(machdep_pthread->machdep_stack);
+}
+
+/* ==========================================================================
+ * machdep_pthread_start()
+ */
+void machdep_pthread_start(void)
+{
+ context_switch_done();
+ sig_check_and_resume();
+
+ /* Run current thread's start routine with argument */
+ pthread_exit(
+ pthread_run->machdep_data.start_routine(
+ pthread_run->machdep_data.start_argument
+ )
+ );
+
+ /* should never reach here */
+ PANIC();
+}
+
+/* ==========================================================================
+ * machdep_pthread_create()
+ */
+void machdep_pthread_create(struct machdep_pthread *machdep_pthread,
+ void *(* start_routine)(), void *start_argument, long stack_size,
+ void *stack_start, long nsec)
+{
+ machdep_pthread->machdep_stack = stack_start;
+
+ machdep_pthread->start_routine = start_routine;
+ machdep_pthread->start_argument = start_argument;
+
+ machdep_pthread->machdep_timer.it_value.tv_sec = 0;
+ machdep_pthread->machdep_timer.it_interval.tv_sec = 0;
+ machdep_pthread->machdep_timer.it_interval.tv_usec = 0;
+ machdep_pthread->machdep_timer.it_value.tv_usec = nsec / 1000;
+
+ _setjmp(machdep_pthread->machdep_state);
+
+ /*
+ * Set up new stack frame so that it looks like it
+ * returned from a longjmp() to the beginning of
+ * machdep_pthread_start().
+ *
+ * state is the set_jmp structure, which for m68k is:
+ * long onstack_flag; // [0]
+ * long sigmask; // [1]
+ * long sp; // [2]
+ * long fp; // [3]
+ * long ap; // [4]
+ * long pc; // [5]
+ * long ps; // [6]
+ * long regs[10]; // non scratch registers
+ */
+ machdep_pthread->machdep_state[5] = (long)machdep_pthread_start;
+
+ /* Stack starts high and builds down. */
+ machdep_pthread->machdep_state[2] =
+ (int)machdep_pthread->machdep_stack + stack_size;
+}
--- /dev/null
+/* $OpenBSD: syscall.S,v 1.1 1997/04/13 17:13:09 briggs Exp $ */
+
+#ifndef lint
+ .text
+ .asciz "$Id: syscall.S,v 1.1 1997/04/13 17:13:09 briggs Exp $";
+#endif
+
+#include <machine/asm.h>
+#include <sys/syscall.h>
+
+#ifdef __STDC__
+#define SYSCALL(x) .even; ENTRY(machdep_sys_ ## x); \
+ movl \#SYS_ ## x,d0; trap \#0; jcs err; rts
+#else /* !__STDC__ */
+#define SYSCALL(x) .even; ENTRY(machdep_sys_/**/x); \
+ movl #SYS_/**/x,d0; trap #0; jcs err; rts
+#endif /* !__STDC__ */
+
+/*
+ * Initial asm stuff for all functions.
+ */
+ .text
+ .even
+
+
+/* ==========================================================================
+ * error code for all syscalls. The error value is returned as the negative
+ * of the errno value.
+ */
+
+err:
+ negl d0
+ rts
+
+/* ==========================================================================
+ * machdep_sys_write()
+ */
+SYSCALL(write)
+
+/* ==========================================================================
+ * machdep_sys_read()
+ */
+SYSCALL(read)
+
+/* ==========================================================================
+ * machdep_sys_open()
+ */
+SYSCALL(open)
+
+/* ==========================================================================
+ * machdep_sys_close()
+ */
+SYSCALL(close)
+
+/* ==========================================================================
+ * machdep_sys_fcntl()
+ */
+SYSCALL(fcntl)
+
+/* ==========================================================================
+ * machdep_sys_lseek()
+ */
+SYSCALL(lseek)
+
+/* ==========================================================================
+ * Nonstandard calls used to make the system work
+ *
+ * ==========================================================================
+ * machdep_sys_select()
+ */
+SYSCALL(select)
+
+/* ==========================================================================
+ * Berkeley socket stuff
+ *
+ * ==========================================================================
+ * machdep_sys_socket()
+ */
+SYSCALL(socket)
+
+/* ==========================================================================
+ * machdep_sys_bind()
+ */
+SYSCALL(bind)
+
+/* ==========================================================================
+ * machdep_sys_connect()
+ */
+SYSCALL(connect)
+
+/* ==========================================================================
+ * machdep_sys_accept()
+ */
+SYSCALL(accept)
+
+/* ==========================================================================
+ * machdep_sys_listen()
+ */
+SYSCALL(listen)
+
+/* ==========================================================================
+ * machdep_sys_getsockopt()
+ */
+SYSCALL(getsockopt)
+
+/* ==========================================================================
+ * machdep_sys_readv()
+ */
+SYSCALL(readv)
+
+/* ==========================================================================
+ * machdep_sys_writev()
+ */
+SYSCALL(writev)
+
+/* ==========================================================================
+ * machdep_sys_getpeername()
+ */
+SYSCALL(getpeername)
+
+/* ==========================================================================
+ * machdep_sys_getsockname()
+ */
+SYSCALL(getsockname)
+
projects / openbsd / commitdiff