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Thu Sep 5 13:18:25 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * sysdeps/mach/hurd/i386/init-first.c (__libc_argc, __libc_argv): New variables. (init1): Initialize them. * hurd/hurdinit.c (_hurd_setproc): Now that happens to be available, pass __libc_argv in call to __proc_set_arg_locations. * gmon/gmon.c (write_hist): Call __profile_frequency instead of hertz. (hertz): Delete function. * gmon/Makefile (routines): Add `prof-freq'. * sysdeps/generic/prof-freq.c: New file. * sysdeps/mach/hurd/prof-freq.c: New (stubby) file. * sysdeps/mach/hurd/profil.c (profile_tick): New variable. (update_waiter): Store frequency in profile_tick. (__profile_frequency): New function. * sysdeps/mach/hurd/sendto.c (sendto): Use prototype definition syntax. * Rules (generated): Restore reference to $(generated). * mach/Machrules (mig.uh, mig.__h): Don't include $(user-MIGFLAGS) here. * malloc/free.c (free): __lib_malloc_lock -> __libc_malloc_lock. * malloc/free.c: Provide extern decl of __libc_malloc_lock. * malloc/realloc.c: Likewise. * malloc/malloc-find.c: Likewise. * malloc/malloc-size.c: Likewise. * malloc/malloc-walk.c: Likewise. * malloc/memalign.c: Likewise. * mach/Machrules (mig.uh, mig.__h): Include $(user-MIGFLAGS) and
60 lines
2.4 KiB
C
60 lines
2.4 KiB
C
/* Return frequency of ticks reported by profil. Generic version. */
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/*-
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* Copyright (c) 1983, 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/time.h>
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int
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__profile_frequency ()
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{
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/*
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* Discover the tick frequency of the machine if something goes wrong,
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* we return 0, an impossible hertz.
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*/
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struct itimerval tim;
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tim.it_interval.tv_sec = 0;
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tim.it_interval.tv_usec = 1;
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tim.it_value.tv_sec = 0;
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tim.it_value.tv_usec = 0;
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setitimer(ITIMER_REAL, &tim, 0);
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setitimer(ITIMER_REAL, 0, &tim);
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if (tim.it_interval.tv_usec < 2)
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return 0;
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return (1000000 / tim.it_interval.tv_usec);
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}
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