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Diffstat (limited to 'mit-pthreads/machdep/engine-powerpc-netbsd.h')
| -rw-r--r-- | mit-pthreads/machdep/engine-powerpc-netbsd.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/mit-pthreads/machdep/engine-powerpc-netbsd.h b/mit-pthreads/machdep/engine-powerpc-netbsd.h new file mode 100644 index 00000000000..530b7ca81e2 --- /dev/null +++ b/mit-pthreads/machdep/engine-powerpc-netbsd.h @@ -0,0 +1,109 @@ +/* ==== machdep.h ============================================================ + * Copyright (c) 1994 Chris Provenzano (proven@athena.mit.edu) and + * Ken Raeburn (raeburn@mit.edu). + * + * engine-alpha-osf1.h,v 1.4.4.1 1995/12/13 05:41:42 proven Exp + * + */ + +#include <unistd.h> +#include <setjmp.h> +#include <sys/time.h> +#include <sys/cdefs.h> +#include <sys/signal.h> /* for _NSIG */ + +/* + * The first machine dependent functions are the SEMAPHORES + * needing the test and set instruction. + */ +#define SEMAPHORE_CLEAR 0 +#define SEMAPHORE_SET 0xffff + +#define SEMAPHORE_TEST_AND_SET(lock) \ +({ \ + volatile long t1, temp = SEMAPHORE_SET; \ + __asm__ volatile( \ + "1: lwarx %0,0,%1; \ + cmpwi %0, 0; \ + bne 2f; \ + stwcx. %2,0,%1; \ + bne- 1b; \ + 2: " \ + :"=r" (t1) \ + :"m" (lock), "r" (temp)); \ + t1; \ +}) + +#define SEMAPHORE_RESET(lock) *lock = SEMAPHORE_CLEAR + +/* + * New types + */ +typedef int semaphore; + +/* + * sigset_t macros + */ +#define SIG_ANY(sig) (sig) +#define SIGMAX (_NSIG-1) + +/* + * New Strutures + */ +struct machdep_pthread { + void *(*start_routine)(void *); + void *start_argument; + void *machdep_stack; + struct itimerval machdep_timer; + jmp_buf machdep_istate; + unsigned long machdep_fstate[66]; + /* 64-bit fp regs 0-31 + fpscr */ + /* We pretend the fpscr is 64 bits */ +}; + +/* + * Static machdep_pthread initialization values. + * For initial thread only. + */ +#define MACHDEP_PTHREAD_INIT \ + { NULL, NULL, NULL, { { 0, 0 }, { 0, 100000 } }, { 0 }, { 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); \ +} + +int machdep_save_state(void); + +void __machdep_save_fp_state(unsigned long *); +void __machdep_restore_fp_state(unsigned long *); +void *__machdep_stack_alloc(size_t); +void __machdep_stack_free(void *); + +#endif + +__END_DECLS |