From acf51e02617b9b8da57b0ee982f96080ee954a38 Mon Sep 17 00:00:00 2001 From: "Thomas Bushnell, BSG" Date: Fri, 6 Sep 1996 00:08:55 +0000 Subject: *** empty log message *** Thu Sep 5 13:18:25 1996 Thomas Bushnell, n/BSG * 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 --- sysdeps/generic/prof-freq.c | 59 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 sysdeps/generic/prof-freq.c (limited to 'sysdeps/generic/prof-freq.c') diff --git a/sysdeps/generic/prof-freq.c b/sysdeps/generic/prof-freq.c new file mode 100644 index 0000000000..4e952e781d --- /dev/null +++ b/sysdeps/generic/prof-freq.c @@ -0,0 +1,59 @@ +/* Return frequency of ticks reported by profil. Generic version. */ +/*- + * Copyright (c) 1983, 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + +#include +#include + +int +__profile_frequency () +{ + /* + * Discover the tick frequency of the machine if something goes wrong, + * we return 0, an impossible hertz. + */ + 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 0; + return (1000000 / tim.it_interval.tv_usec); +} + + -- cgit 1.4.1