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Diffstat (limited to 'mit-pthreads/machdep/engine-m68000-netbsd.h')
| -rw-r--r-- | mit-pthreads/machdep/engine-m68000-netbsd.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/mit-pthreads/machdep/engine-m68000-netbsd.h b/mit-pthreads/machdep/engine-m68000-netbsd.h new file mode 100644 index 00000000000..ec3c6a01bce --- /dev/null +++ b/mit-pthreads/machdep/engine-m68000-netbsd.h @@ -0,0 +1,107 @@ +/* ==== machdep.h ============================================================ + * Copyright (c) 1993 Chris Provenzano, proven@athena.mit.edu + * + * $Id$ + * + * m68k work by Andy Finnell <andyf@vei.net> based off work by + * David Leonard and Chris Provenzano. + * + */ + +#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 + +/* + * New types + */ +typedef char 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_fstate[92]; +}; + +/* + * Min pthread stacksize + */ +#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 + +/* + * Static machdep_pthread initialization values. + * For initial thread only. + */ +#define MACHDEP_PTHREAD_INIT \ +{ NULL, NULL, NULL, { { 0, 0 }, { 0, 100000 } }, 0 } + +/* + * New functions + */ + +__BEGIN_DECLS + +#if defined(PTHREAD_KERNEL) + + +#ifndef __machdep_stack_get +#define __machdep_stack_get(x) (x)->machdep_stack +#endif +#ifndef __machdep_stack_set +#define __machdep_stack_set(x, y) (x)->machdep_stack = y +#endif +#ifndef __machdep_stack_repl +#define __machdep_stack_repl(x, y) \ +{ \ + if (stack = __machdep_stack_get(x)) { \ + __machdep_stack_free(stack); \ + } \ + __machdep_stack_set(x, y); \ +} +#endif + +void * __machdep_stack_alloc __P_((size_t)); +void __machdep_stack_free __P_((void *)); + +int machdep_save_state __P_((void)); + +#endif + +__END_DECLS |