old-cross-binutils/gprof/hertz.c

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/*
* 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.
*/
* alpha.c (alpha_Instruction): Don't use. (alpha_find_call): Avoid use of bitfields and casts between pointers and integers of different sizes. Avoid endian problems when cross-compiling. * vax.c (vax_find_call): Likewise. (struct modebyte): Don't use. (vax_operandmode): Pass in an unsigned char *. (vax_operandlength): Likewise. (vax_reladdr): Rename to vax_offset and return relative offset rather than address. * i386.c (i386_find_call): Avoid casts between pointers and integers of different sizes. * sparc.c (sparc_find_call): Likewise. Avoid endian problems. * tahoe.c (tahoe_find_call): Likewise. (tahoe_reladdr): Rename to tahoe_offset and return relative offset rather than address. * basic_blocks.h: Don't include headers here. * call_graph.h: Likewise. * cg_arcs.h: Likewise. * cg_print.h: Likewise. * corefile.h: Likewise. * gmon_io.h: Likewise. * gmon_out.h: Likewise. * hertz.h: Likewise. * hist.h: Likewise. * source.h: Likewise. * sym_ids.h: Likewise. * symtab.h: Likewise. * gprof.h: Don't include ansidecl.h, do include bfd.h. (bool): Don't typedef. * alpha.c: Adjust #include's for above header changes. * basic_blocks.c: Likewise. * call_graph.c: Likewise. * cg_arcs.c: Likewise. * cg_dfn.c: Likewise. * cg_print.c: Likewise. * corefile.c: Likewise. * gmon_io.c: Likewise. * gprof.c: Likewise. * hertz.c: Likewise. * hist.c: Likewise. * i386.c: Likewise. * mips.c: Likewise. * sparc.c: Likewise. * sym_ids.c: Likewise. * symtab.c: Likewise. * tahoe.c: Likewise. * utils.c: Likewise. * vax.c: Likewise. * po/POTFILES.in: Regenerate.
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#include "gprof.h"
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#include "hertz.h"
int
hertz ()
{
#ifdef HERTZ
return HERTZ;
#else /* ! defined (HERTZ) */
#ifdef HAVE_SETITIMER
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)
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{
return 1000000 / tim.it_interval.tv_usec;
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}
#endif /* ! defined (HAVE_SETITIMER) */
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#if defined (HAVE_SYSCONF) && defined (_SC_CLK_TCK)
return sysconf (_SC_CLK_TCK);
#else /* ! defined (HAVE_SYSCONF) || ! defined (_SC_CLK_TCK) */
#ifdef __MSDOS__
return 18;
#else /* ! defined (__MSDOS__) */
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return HZ_WRONG;
#endif /* ! defined (__MSDOS__) */
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#endif /* ! defined (HAVE_SYSCONF) || ! defined (_SC_CLK_TCK) */
#endif /* ! defined (HERTZ) */
}