diff options
| -rw-r--r-- | lib/libpthread/arch/m68k/Makefile.inc | 4 | ||||
| -rw-r--r-- | lib/libpthread/arch/m68k/machdep.c | 153 | ||||
| -rw-r--r-- | lib/libpthread/arch/m68k/machdep.h | 49 | ||||
| -rw-r--r-- | lib/libpthread/arch/m68k/syscall.S | 125 |
4 files changed, 331 insertions, 0 deletions
diff --git a/lib/libpthread/arch/m68k/Makefile.inc b/lib/libpthread/arch/m68k/Makefile.inc new file mode 100644 index 00000000000..a7c4761a6b4 --- /dev/null +++ b/lib/libpthread/arch/m68k/Makefile.inc @@ -0,0 +1,4 @@ +# Machine dependent sources +.PATH: ${.CURDIR}/arch/${MACHINE_ARCH} + +SRCS+= machdep.c syscall.S diff --git a/lib/libpthread/arch/m68k/machdep.c b/lib/libpthread/arch/m68k/machdep.c new file mode 100644 index 00000000000..80b47c63cae --- /dev/null +++ b/lib/libpthread/arch/m68k/machdep.c @@ -0,0 +1,153 @@ +/* ==== 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; +} diff --git a/lib/libpthread/arch/m68k/machdep.h b/lib/libpthread/arch/m68k/machdep.h new file mode 100644 index 00000000000..a63e77de0d3 --- /dev/null +++ b/lib/libpthread/arch/m68k/machdep.h @@ -0,0 +1,49 @@ +/* $OpenBSD */ + +/* ==== machdep.h ============================================================ + * Copyright (c) 1993 Chris Provenzano, proven@athena.mit.edu + * + * $ I d: engine-m68000-netbsd.h,v 1.51 1994/11/08 15:39:15 proven Exp $ + * + */ +#include <unistd.h> +#include <setjmp.h> +#include <sys/time.h> + +/* + * The first machine dependent functions are the SEMAPHORES + * needing the test and set instruction. + */ +#define SEMAPHORE_CLEAR 0 +#define SEMAPHORE_SET 0x80; + +#define SEMAPHORE_TEST_AND_SET(lock) \ +({ \ + volatile long temp = SEMAPHORE_CLEAR; \ + __asm__ volatile( \ + "tas %2; bpl 0f; movl #1,%0; 0:" \ + :"=r" (temp) \ + :"0" (temp),"m" (*lock)); \ + temp; \ +}) + +#define SEMAPHORE_RESET(lock) *lock = SEMAPHORE_CLEAR + +/* + * Min pthread stacksize + */ +#define PTHREAD_STACK_MIN 1024 + +/* + * New functions + */ + +__BEGIN_DECLS + +#if defined(PTHREAD_KERNEL) + +int machdep_save_state __P((void)); + +#endif + +__END_DECLS diff --git a/lib/libpthread/arch/m68k/syscall.S b/lib/libpthread/arch/m68k/syscall.S new file mode 100644 index 00000000000..b68fc846138 --- /dev/null +++ b/lib/libpthread/arch/m68k/syscall.S @@ -0,0 +1,125 @@ +/* $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) + |