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/*
* OpenBSD/sparc machine-dependent thread macros
*
* $OpenBSD: uthread_machdep.h,v 1.2 1999/01/17 23:49:49 d Exp $
*/
#include <sys/signal.h>
/* save the floating point state of a thread */
#define _thread_machdep_save_float_state(thr) \
{ \
/* XXX tdb */ \
}
/* restore the floating point state of a thread */
#define _thread_machdep_restore_float_state(thr) \
{ \
/* XXX tdb */ \
}
/* initialise the jmpbuf stack frame so it continues from entry */
#define _thread_machdep_thread_create(thr, entry, pattr) \
{ \
/* entry */ \
(thr)->saved_jmp_buf[1] = (long) entry; \
/* stack */ \
(thr)->saved_jmp_buf[0] = (long) (thr)->stack \
+ (pattr)->stacksize_attr \
- sizeof(double); \
}
/*
* XXX high chance of longjmp botch (see libc/arch/sparc/gen/_setjmp.S)
* because it uses the frame pointer to pop off frames.. we don't want
* that.. what to do? fudge %fp? do our own setjmp?
*/
#define _thread_machdep_longjmp(a,v) _longjmp(a,v)
#define _thread_machdep_setjmp(a) _setjmp(a)
typedef jmp_buf _machdep_jmp_buf;
struct _machdep_struct {
/* char saved_fp[???]; */
int dummy;
};
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