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Diffstat (limited to 'mit-pthreads/machdep/engine-sparc-sunos-5.3.h')
| -rw-r--r-- | mit-pthreads/machdep/engine-sparc-sunos-5.3.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/mit-pthreads/machdep/engine-sparc-sunos-5.3.h b/mit-pthreads/machdep/engine-sparc-sunos-5.3.h new file mode 100644 index 00000000000..365ecd799eb --- /dev/null +++ b/mit-pthreads/machdep/engine-sparc-sunos-5.3.h @@ -0,0 +1,129 @@ +/* ==== machdep.h ============================================================ + * Copyright (c) 1994 Chris Provenzano, proven@athena.mit.edu + * + * $Id$ + * + */ + +#include <unistd.h> +#include <setjmp.h> +#include <sys/time.h> +#include <sys/cdefs.h> + +/* + * The first machine dependent functions are the SEMAPHORES + * needing the test and set instruction. + */ +#define SEMAPHORE_CLEAR 0 +#define SEMAPHORE_SET 0xff + +#define SEMAPHORE_TEST_AND_SET(lock) \ +({ \ +char *p = lock; \ +long temp; \ + \ +__asm__ volatile("ldstub %1,%0" \ + :"=r" (temp) \ + :"m" (*p) \ + :"memory"); \ +temp; \ +}) + +#define SEMAPHORE_RESET(lock) \ +{ \ +__asm__ volatile("stb %1, %0" \ + :"=m" (*lock) \ + :"r" (SEMAPHORE_CLEAR) \ + :"memory"); \ +} + +/* + * More machine dependent macros + */ +#ifdef PTHREAD_KERNEL + +#define machdep_save_float_state(x) +#define machdep_restore_float_state() + +#endif + +/* + * New types + */ +typedef char semaphore; + +/* + * sigset_t macros + */ +#define SIGMAX 31 +#define SIG_ANY(sig) \ +({ \ + sigset_t *sig_addr = (sigset_t *)&sig; \ + int ret = 0; \ + int i; \ + \ + for (i = 1; i <= SIGMAX; i++) { \ + if (sigismember(sig_addr, i)) { \ + ret = 1; \ + break; \ + } \ + } \ + ret; \ +}) + +/* + * New Strutures + */ +struct machdep_pthread { + void *(*start_routine)(void *); + void *start_argument; + void *machdep_stack; + struct itimerval machdep_timer; + jmp_buf machdep_state; +}; + +/* + * Static machdep_pthread initialization values. + * For initial thread only. + */ +#define MACHDEP_PTHREAD_INIT \ +{ NULL, NULL, NULL, { { 0, 0 }, { 0, 100000 } }, 0 } + +/* + * Minimum stack size + */ +#undef PTHREAD_STACK_MIN /* Defined in limits.h */ +#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 | O_NDELAY) + +/* + * 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 |