initial import of NetBSD tree

4 files changed, 372 insertions, 0 deletions

diff --git a/lib/libpthread/arch/i386/Makefile.inc b/lib/libpthread/arch/i386/Makefile.inc
new file mode 100644
index 00000000000..85468b9aa69
--- /dev/null
+++ b/lib/libpthread/arch/i386/Makefile.inc
@@ -0,0 +1,4 @@
+# Machine dependent sources
+.PATH: ${.CURDIR}/arch/${MACHINE}
+
+SRCS+= machdep.c syscall.S
diff --git a/lib/libpthread/arch/i386/machdep.c b/lib/libpthread/arch/i386/machdep.c
new file mode 100644
index 00000000000..c51772fd76c
--- /dev/null
+++ b/lib/libpthread/arch/i386/machdep.c
@@ -0,0 +1,136 @@
+/* ==== 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.
+ */
+
+#ifndef lint
+static const char rcsid[] = "$Id: machdep.c,v 1.1.1.1 1995/10/18 08:43:03 deraadt 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 threads 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 stact frame so that it looks like it
+     * returned from a longjmp() to the beginning of
+     * machdep_pthread_start().
+     */
+    machdep_pthread->machdep_state[0] = (int)machdep_pthread_start;
+
+    /* Stack starts high and builds down. */
+    machdep_pthread->machdep_state[2] =
+      (int)machdep_pthread->machdep_stack + stack_size;
+}
diff --git a/lib/libpthread/arch/i386/machdep.h b/lib/libpthread/arch/i386/machdep.h
new file mode 100644
index 00000000000..10521b02235
--- /dev/null
+++ b/lib/libpthread/arch/i386/machdep.h
@@ -0,0 +1,58 @@
+/* ==== machdep.h ============================================================
+ * 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.
+ *
+ */
+
+
+/*
+ * The first machine dependent functions are the SEMAPHORES
+ * needing the test and set instruction.
+ */
+#define SEMAPHORE_CLEAR 0
+#define SEMAPHORE_SET   1
+
+#define SEMAPHORE_TEST_AND_SET(lock)    \
+({										\
+volatile long temp = SEMAPHORE_SET;     \
+										\
+__asm__("xchgl %0,(%2)"                 \
+        :"=r" (temp)                    \
+        :"0" (temp),"r" (lock));        \
+temp;                                   \
+})
+
+#define SEMAPHORE_RESET(lock)           *lock = SEMAPHORE_CLEAR
+
+/*
+ * Minimum stack size
+ */
+#define PTHREAD_STACK_MIN	1024
+
diff --git a/lib/libpthread/arch/i386/syscall.S b/lib/libpthread/arch/i386/syscall.S
new file mode 100644
index 00000000000..3ae6041d2de
--- /dev/null
+++ b/lib/libpthread/arch/i386/syscall.S
@@ -0,0 +1,174 @@
+/* ==== syscall.S ============================================================
+ * Copyright (c) 1990 The Regents of the University of California.
+ * Copyright (c) 1993 Chris Provenzano, proven@mit.edu
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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 the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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 syscalls for i386/i486/i586
+ *
+ *  1.00 93/08/26 proven
+ *      -Started coding this file.
+ *
+ *	1.01 93/11/13 proven
+ *		-The functions readv() and writev() added.
+ */
+
+#ifndef lint
+    .text
+    .asciz "$Id: syscall.S,v 1.1.1.1 1995/10/18 08:43:03 deraadt Exp $";
+#endif
+ 
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+        .asciz "@(#)syscall.s   5.1 (Berkeley) 4/23/90"
+#endif /* SYSLIBC_SCCS and not lint */
+
+#include <machine/asm.h>
+#include <sys/syscall.h>
+
+#define	SYSCALL(x)					\
+	.globl _machdep_sys_/**/x;		\
+									\
+_machdep_sys_/**/x:;				\
+									\
+	movl $(SYS_/**/x), %eax;		\
+	.byte 0x9a; .long 0; .word 7;	\
+	jb	1b;							\
+	ret;							
+
+/*
+ * Initial asm stuff for all functions.
+ */
+	.text
+	.align	2
+
+
+/* ==========================================================================
+ * error code for all syscalls. The error value is returned as the negative
+ * of the errno value.
+ */
+
+1:
+	neg		%eax
+	ret
+
+/* ==========================================================================
+ * 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)
+