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Diffstat (limited to 'mit-pthreads/machdep/engine-i386-sco-3.2v5.h')
| -rw-r--r-- | mit-pthreads/machdep/engine-i386-sco-3.2v5.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/mit-pthreads/machdep/engine-i386-sco-3.2v5.h b/mit-pthreads/machdep/engine-i386-sco-3.2v5.h new file mode 100644 index 00000000000..8b2aa362f06 --- /dev/null +++ b/mit-pthreads/machdep/engine-i386-sco-3.2v5.h @@ -0,0 +1,104 @@ +/* ==== machdep.h ============================================================ + * Copyright (c) 1993 Chris Provenzano, proven@athena.mit.edu + * + * engine-i386-freebsd-2.0.h,v 1.1.4.1 1995/12/13 05:41:52 proven Exp + * + */ + +#include <unistd.h> +#include <setjmp.h> +#include <sys/time.h> + +#ifndef __NORETURN +#define __NORETURN +#endif + +/* + * 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) \ +({ \ +long temp = SEMAPHORE_SET; \ + \ +__asm__ volatile ("xchgl %0,(%2)" \ + :"=r" (temp) \ + :"0" (temp),"r" (lock)); \ +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; +#define JB_BP 3 +#define JB_SP 4 +#define JB_PC 5 + 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 2048 + +/* + * 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 |