diff options
Diffstat (limited to 'lib/libpthread/arch/i386/machdep.h')
| -rw-r--r-- | lib/libpthread/arch/i386/machdep.h | 99 |
1 files changed, 69 insertions, 30 deletions
diff --git a/lib/libpthread/arch/i386/machdep.h b/lib/libpthread/arch/i386/machdep.h index 10521b02235..41a3a553cc0 100644 --- a/lib/libpthread/arch/i386/machdep.h +++ b/lib/libpthread/arch/i386/machdep.h @@ -1,36 +1,13 @@ /* ==== machdep.h ============================================================ - * Copyright (c) 1993 by Chris Provenzano, proven@mit.edu - * All rights reserved. + * Copyright (c) 1993 Chris Provenzano, proven@athena.mit.edu * - * 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. + * $Id: machdep.h,v 1.2 1998/07/21 16:28:02 peter Exp $ * */ +#include <unistd.h> +#include <setjmp.h> +#include <sys/time.h> /* * The first machine dependent functions are the SEMAPHORES @@ -41,9 +18,9 @@ #define SEMAPHORE_TEST_AND_SET(lock) \ ({ \ -volatile long temp = SEMAPHORE_SET; \ +long temp = SEMAPHORE_SET; \ \ -__asm__("xchgl %0,(%2)" \ +__asm__ volatile ("xchgl %0,(%2)" \ :"=r" (temp) \ :"0" (temp),"r" (lock)); \ temp; \ @@ -52,7 +29,69 @@ temp; \ #define SEMAPHORE_RESET(lock) *lock = SEMAPHORE_CLEAR /* + * New types + */ +typedef long semaphore; + +/* + * sigset_t macros + */ +#define SIG_ANY(sig) (sig) +#define SIGMAX 31 + +/* + * New Strutures + */ +struct machdep_pthread { + void *(*start_routine)(void *); + void *start_argument; + void *machdep_stack; + struct itimerval machdep_timer; + jmp_buf machdep_state; + char machdep_float_state[108]; +}; + +/* + * Static machdep_pthread initialization values. + * For initial thread only. + */ +#define MACHDEP_PTHREAD_INIT \ +{ NULL, NULL, NULL, { { 0, 0 }, { 0, 100000 } }, 0 } + +/* * Minimum stack size */ #define PTHREAD_STACK_MIN 1024 +/* + * Some fd flag defines that are necessary to distinguish between posix + * behavior and bsd4.3 behavior. + */ +#define __FD_NONBLOCK O_NONBLOCK + +/* + * New functions + */ + +__BEGIN_DECLS + +#if defined(PTHREAD_KERNEL) + +#define __machdep_stack_get(x) (x)->machdep_stack +#define __machdep_stack_set(x, y) (x)->machdep_stack = y +#define __machdep_stack_repl(x, y) \ +{ \ + if (stack = __machdep_stack_get(x)) { \ + __machdep_stack_free(stack); \ + } \ + __machdep_stack_set(x, y); \ +} + +void * __machdep_stack_alloc __P_((size_t)); +void __machdep_stack_free __P_((void *)); + +int machdep_save_state __P_((void)); + +#endif + +__END_DECLS |