darling-gdb/gprof/hertz.c
Ken Raeburn 03c35bcb6e * __bb_exit_func.c: New file, from David Mosberger-Tang.
Thu Feb  9 16:56:07 1995  David Mosberger-Tang  <davidm@piston.cs.arizona.edu>

* All *.c: More cleanup towards GNU format.

* gmon_out.h (struct gmon_hist_hdr, struct gmon_cg_arc_record): replaced sizeof
(bfd_vma) by size (char*) because Ken tells me that bfd_vma is only guaranteed
to be at least as big as a pointer.

(GMON_Record_tag): added explicit enumeration values to ensure compatibility
across compilers.

* gmon_io.c (get_vma, put_vma): replaced sizeof(bfd_vma) by sizeof(char*).
1995-03-14 02:58:16 +00:00

48 lines
1.4 KiB
C

/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that: (1) source distributions retain this entire copyright
* notice and comment, and (2) distributions including binaries display
* the following acknowledgement: ``This product includes software
* developed by the University of California, Berkeley and its contributors''
* in the documentation or other materials provided with the distribution
* and in all advertising materials mentioning features or use of this
* software. Neither the name of the University nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <sys/time.h>
#include "hertz.h"
#ifdef __MSDOS__
#define HERTZ 18
#endif
int
hertz ()
{
#ifdef HERTZ
return HERTZ;
#else
struct itimerval tim;
tim.it_interval.tv_sec = 0;
tim.it_interval.tv_usec = 1;
tim.it_value.tv_sec = 0;
tim.it_value.tv_usec = 0;
setitimer (ITIMER_REAL, &tim, 0);
setitimer (ITIMER_REAL, 0, &tim);
if (tim.it_interval.tv_usec < 2)
{
return HZ_WRONG;
}
return 1000000 / tim.it_interval.tv_usec;
#endif
}