diff options
Diffstat (limited to 'mit-pthreads/machdep/engine-hppa-hpux-10.20.c')
-rw-r--r-- | mit-pthreads/machdep/engine-hppa-hpux-10.20.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/mit-pthreads/machdep/engine-hppa-hpux-10.20.c b/mit-pthreads/machdep/engine-hppa-hpux-10.20.c new file mode 100644 index 00000000000..f6f0b2e0f1d --- /dev/null +++ b/mit-pthreads/machdep/engine-hppa-hpux-10.20.c @@ -0,0 +1,169 @@ +/* ==== machdep.c ============================================================ + * Copyright (c) 1993 Chris Provenzano, proven@athena.mit.edu + * + * Description : Machine dependent functions for HP-UX 9.03 on hppa + * + * 1.00 93/12/14 proven + * -Started coding this file. + */ + +#include <pthread.h> +#include <setjmp.h> +#include <stdlib.h> +#include <unistd.h> + +volatile int setupStack = 0; + +/* ========================================================================== + * machdep_save_state() + */ +int machdep_save_state(void) +{ + return(setjmp(pthread_run->machdep_data.machdep_state)); +} + +/* ========================================================================== + * machdep_restore_state() + */ +void machdep_restore_state(void) +{ + longjmp(pthread_run->machdep_data.machdep_state, 1); +} + +/* ========================================================================== + * machdep_save_float_state() + */ +void machdep_save_float_state(struct pthread * pthread) +{ + return; +} + +/* ========================================================================== + * machdep_restore_float_state() + */ +void machdep_restore_float_state() +{ + return; +} + +/* ========================================================================== + * machdep_set_thread_timer() + */ +void machdep_set_thread_timer(struct machdep_pthread *machdep_pthread) +{ + if (setitimer(ITIMER_VIRTUAL, &(machdep_pthread->machdep_timer), NULL)) { + PANIC(); + } +} + +/* ========================================================================== + * machdep_unset_thread_timer() + */ +void machdep_unset_thread_timer(struct machdep_pthread *machdep_pthread) +{ + struct itimerval zeroval = { { 0, 0 }, { 0, 0} }; + + if (setitimer(ITIMER_VIRTUAL, &zeroval, NULL)) { + PANIC(); + } +} + +/* ========================================================================== + * machdep_pthread_cleanup() + */ +void *machdep_pthread_cleanup(struct machdep_pthread *machdep_pthread) +{ + return(machdep_pthread->machdep_stack); +} + +/* ========================================================================== + * machdep_pthread_start() + */ +void machdep_pthread_start(jmp_buf j) +{ + setjmp(j); + if( setupStack ) + return; + + context_switch_done(); + pthread_sched_resume(); + + /* Run current threads start routine with argument */ + pthread_exit(pthread_run->machdep_data.start_routine + (pthread_run->machdep_data.start_argument)); + + /* should never reach here */ + PANIC(); +} + +/* ========================================================================== + * __machdep_stack_free() + */ +void __machdep_stack_free(void * stack) +{ + free(stack); +} + +/* ========================================================================== + * __machdep_stack_alloc() + */ +void * __machdep_stack_alloc(size_t size) +{ + void * stack; + + return(malloc(size)); +} + +/* ========================================================================== + * __machdep_pthread_create() + */ +void __machdep_pthread_create(struct machdep_pthread *machdep_pthread, + void *(* start_routine)(), void *start_argument, + long stack_size, long nsec, long flags) +{ + jmp_buf tmp_jmp_buf; + + machdep_pthread->start_routine = start_routine; + machdep_pthread->start_argument = start_argument; + + machdep_pthread->machdep_timer.it_value.tv_sec = 0; + machdep_pthread->machdep_timer.it_interval.tv_sec = 0; + machdep_pthread->machdep_timer.it_interval.tv_usec = 0; + machdep_pthread->machdep_timer.it_value.tv_usec = nsec / 1000; + + /* + * Set up new stack frame so that it looks like it + * returned from a longjmp() to the beginning of + * machdep_pthread_start(). + */ + setjmp(machdep_pthread->machdep_state); + + /* get the stack frame from the real machdep_pthread_start */ + setupStack = 1; +/* machdep_pthread_start(machdep_pthread->machdep_state); */ + machdep_pthread_start(tmp_jmp_buf); + setupStack = 0; + + /* copy over the interesting part of the frame */ + ((int *)machdep_pthread->machdep_state)[44] = ((int *)tmp_jmp_buf)[44]; + + /* Stack starts low and builds up, but needs two start frames */ + ((int *)machdep_pthread->machdep_state)[1] = + (int)machdep_pthread->machdep_stack + (64 * 2); +} + +int machdep_sys_getdtablesize() +{ + return sysconf(_SC_OPEN_MAX); +} + +void sig_check_and_resume() +{ + return; +} + +void ___exit(int status) +{ + exit(status); + PANIC(); +} |