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/* ==== machdep.h ============================================================
* Copyright (c) 1993 Chris Provenzano, proven@athena.mit.edu
*
* $Id: engine-m68000-netbsd.h,v 1.1 1998/07/21 13:19:14 peter Exp $
*
*/
#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),"r" (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;
};
/*
* Min pthread stacksize
*/
#define PTHREAD_STACK_MIN 1024
/*
* 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)
int machdep_save_state __P_((void));
#endif
__END_DECLS
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