glibc/sysdeps/generic/prof-freq.c

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/* 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
update from main archive 960906 Sat Sep 7 05:15:45 1996 Ulrich Drepper <drepper@cygnus.com> * libio/iofdopen: Initialize _lock field only if _IO_MTSAFE_IO. * libio/iofopen: Likewise. * libio/iofopncook.c: Likewise. * libio/iopopen.c: Likewise. * libio/iovsprintf.c: Likewise. * libio/iovsscanf.c: Likewise. * libio/memstream.c: Likewise. * libio/vasprintf.c: Likewise. * libio/vdprintf.c: Likewise. * libio/vsnprintf.c: Likewise. Sat Sep 7 03:55:47 1996 Ulrich Drepper <drepper@cygnus.com> * Makeconfig (soversions.mk): Also use shlib-versions files in add-on directories. * config.make.in (config-defines): Remove. Not used anymore. (defines): New variable. Initiliazed by @DEFINES@. * configure.in: Add AC_SUBST(DEFINES). * libio/Makefile (routines): When compiling reentrant libc add clearerr_u, feof_u, ferror_u, fputc_u, getc_u, getchar_u, iofflush_u, putc_u, putchar_u, ioflockfile. (CPPFLAGS): Add -D_IO_MTSAFE_IO for reentrant libc. * sysdeps/stub/libc-lock.h: Add stubs for __libc_cleanup_region_start and __libc_cleanup_region_end. * sysdeps/unix/i386/sysdep.S [_LIBC_REENTRANT]: Set errno using __errno_location function. * sysdeps/unix/sysv/linux/i386/sysdep.S [_LIBC_REENTRANT]: Set errno using __errno_location function. (__errno_location): New function. * sysdeps/unix/sysv/linux/i386/sysdep.h [PIC]: Add second syscall_error handler for reentrant libc. * sysdeps/unix/opendir.c: Remove unneeded `;'. * libio.h [_IO_MTSAFE_IO]: Include <pthread.h>. [!_IO_MTSAFE_IO]: Define _IO_flockfile and _IO_funlockfile as empty macros. * libioP.h: Include <libc-lock.h>. * libio/stdio.h: Add prototypes for *_locked and *_unlocked functions. * libio/clearerr.c: Use _IO_ protected versions of flockfile and funlockfile to be namespace clean. * libio/genops.c: Use __libc_lock_* macros for handling lock. * libio/iofdopen: Add initialization of _lock in _IO_FILE. * libio/iofopen: Likewise. * libio/iofopncook.c: Likewise. * libio/iopopen.c: Likewise. * libio/iovsprintf.c: Likewise. * libio/iovsscanf.c: Likewise. * libio/memstream.c: Likewise. * libio/vasprintf.c: Likewise. * libio/vdprintf.c: Likewise. * libio/vsnprintf.c: Likewise. * libio/fgetc.c: Use __libc_cleanup_region_* macros instead of flockfile etc. * libio/fputc.c: Likewise. * libio/freopen.c: Likewise. * libio/fseek.c: Likewise. * libio/getc.c: Likewise. * libio/getchar.c: Likewise. * libio/iofclose.c: Likewise. * libio/iofflush.c: Likewise. * libio/iofgetpos.c: Likewise. * libio/iofgets.c: Likewise. * libio/iofputs.c: Likewise. * libio/iofread.c: Likewise. * libio/iofsetpos.c: Likewise. * libio/ioftell.c: Likewise. * libio/iofwrite.c: Likewise. * libio/iogetdelim.c: Likewise. * libio/iogets.c: Likewise. * libio/ioputs.c: Likewise. * libio/iosetbuffer.c: Likewise. * libio/iosetvbuf.c: Likewise. * libio/ioungetc.c: Likewise. * libio/putc.c: Likewise. * libio/putchar.c: Likewise. * libio/rewind.c: Likewise. * stdio-common/vfprintf.c: Likewise. * stdio-common/vfscanf.c: Likewise. * libio/clearerr_u.c: Correct alias name. * libio/ferror_u.c: Likewise. * libio/fileno.c: Likewise. * libio/fputc_u.c: Likewise. * libio/getc.c: Likewise. * libio/getc_u.c: Likewise. * libio/getchar.c: Likewise. * libio/getchar_u.c: Likewise. * libio/putc.c: Likewise. * libio/putchar.c: Likewise. * libio/feof_u.c: Undefine macro with name of function before definition of function itself. * libio/ioflockfile.c: New file. Implementation of flockfile and funlockfile. * libio/putchar_u.c: Fix typo. Use stdout instead of fp. * malloc/malloc.h: Don't include <libc-lock.h> and don't declare _malloc_loc. * malloc/free.c: Include <libc-lock.h>. * malloc/realloc.c: Likewise. * malloc/malloc-find.c: Likewise. * malloc/malloc-size.c: Likewise. * malloc/malloc-walk.c: Likewise. * malloc/memalign.c: Likewise. * malloc/malloc.c: Likewise. * sysdeps/i386/dl-machine.h: Correct clearing of _dl_starting_up. Fri Sep 6 19:38:49 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/stub/libc-lock.h: Define __libc_lock_critical_start and __libc_lock_critical_end as empty macros. * malloc/malloc.h: Don't include <libc-lock.h> and don't declare __libc_malloc_lock. * malloc/free.c: Include <libc-lock.h>. * malloc/malloc-find.c: Likewise. * malloc/malloc-size.c: Likewise. * malloc/malloc-walk.c: Likewise. * malloc/malloc.c: Likewise. * malloc/memalign.c: Likewise. * malloc/realloc.c: Likewise. * Makefile: Undo change from Mon Sep 2 22:15:14 1996. No more extra_solibs pass. * Rules: Likewise. * extra-lib.mk: Likewise. * manual/Makefile: Likewise. * db/Makefile (makedb): Choose dependecies based on build-shared. Patch by Andres Schwab. * sysdeps/posix/sysconf.c: Don't use PTHREAD_DESTRUCTOR_ITERATIONS but _POSIX_THREAD_DESTRUCTOR_ITERATIONS. * sysdeps/unix/sysv/linux/errnos.h: New file. * sysdeps/unix/sysv/linux/schedbits.h: New file. * sysdeps/unix/sysv/linux/waitflags.h: New file. * sysdeps/unix/sysv/linux/gnu/types.h: Add definition of `key_t'. Fri Sep 6 08:26:31 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * rpm/template: Fix typo in %build section. Fri Sep 6 03:31:07 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/errnos.h: Don't define errno macro when building libc without thread support. * resolv/netdb.h: Likewise for h_errno macro. Thu Sep 5 23:01:48 1996 Ulrich Drepper <drepper@cygnus.com> * libc-symbols.h: Add new macro weak_const_function. It's like weak_function, but the function is additionally marked as const. * features.h: Only include <sys/cdefs.h> if !__ASSEMBLER__. Thu Sep 5 22:55:49 1996 Richard Henderson <rth@tamu.edu> * inet/herrno.c (__h_errno_location): New function. (h_errno): Make strong_alias __h_errno so that we can access the variable even if `h_errno' is a macro. * resolv/netdb.h: Define macro h_errno to access thread specific version of h_errno variable. Declare alias __h_errno for h_errno. * resolv/res_query (h_errno): Remove definition. * sysdeps/unix/sysv/linux/errnos.h [!__ASSEMBLER__ && __USE_REENTRANT]: Add macro `errno' to get thread specific variable. * sysdeps/unix/alpha/sysdep.S [_LIBC_REENTRANT]: Set errno using __errno_location function. (__errno_location): New function. Thu Sep 5 21:08:44 1996 Ulrich Drepper <drepper@cygnus.com> * posix/gnu/types.h: Remove definition of key_t. * sysdeps/generic/gnu/types.h: Move it to here. * sysdeps/unix/sysv/linux/gnu/types.h: Add Linux specific definition of key_t. * sysdeps/unix/sysv/linux/waitflags.h: New file. Linux specific definitions. * sysdeps/unix/sysv/linux/schedbits.h: New file. Include clone prototypes and associated flags. Thu Sep 5 08:58:47 1996 Richard Henderson <rth@tamu.edu> * sysdeps/alpha/elf/start.S: Make _start global again. hertz. here. Wed Sep 4 16:16:13 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/mach/hurd/send.c (__send): De-ANSI-fy. * sysdeps/mach/hurd/sendto.c (sendto): Likewise.
1996-09-07 04:10:57 +00:00
* 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 <sys/types.h>
#include <sys/time.h>
int
update from main archive 960927 Sat Sep 28 03:02:49 1996 Ulrich Drepper <drepper@cygnus.com> * dirent/Makefile (routines): Add readdir_r. * dirent/readdir_r.c: New file. Wrapper around readdir.c. * dirent/dirent.h: Add prototype for readdir_r. * misc/hsearch_r.c (ENTRY): Make field `used' of type `unsigned int' to prevent warnings. * sysdeps/unix/sysv/linux/getsysstats.c (get_proc_path): Initialize `result'. Sat Sep 28 01:16:42 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/strsep.c: Rename to __strsep and make strsep weak alias. * string/string.h: Add prototype for __strsep. * misc/mntent_r.c: Use __strsep instead of strsep to keep namespace clean. * sysdeps/stub/nanosleep.c: Rename to __libc_nanosleep and make __nanosleep and nanosleep weak aliases. * sysdeps/unix/sysv/linux/syscalls.list: Add __nanosleep as weak alias. * sysdeps/unix/sysv/linux/sleep.c: Call __nanosleep instead of nanosleep to keep namespace clean. * sysdeps/posix/ttyname.c (ttyname): Add cast to prevent warning. * sysdeps/posix/ttyname_r.c (ttyname_r): Likewise. * sysdeps/posix/getcwd.c (__getcwd): Likewise. * sysdeps/unix/nlist.c: Use ISO C definition since we don't always have prototype. * login/Makefile (headers): Add pty.h. * login/pty.h: New file. * sysdeps/generic/pty.h: Include <pty.h>. * login/pututline_r.c: Add cast to prevent warning. * gmon/gmon.c: Add prototype for __profile_frequency. (monstartup): Add cast to prevent warning. * sysdeps/generic/prof-freq.c: Change to use ISO C style definition. * locale/programs/ld-time.c (time_output): Write `era' information in correct order. Sat Sep 28 00:11:08 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/syscalls.list: Add weak alias `adjtimex'. Set caller for mlock, mlockall, mremap, munlock, and munlockall to EXTRA. Reported by Matthias Urlichs <smurf@smurf.noris.de>. 1996-09-27 Paul Eggert <eggert@twinsun.com> * strftime.c (strftime): Output incomplete formats like %E at end of string. 1996-09-27 Paul Eggert <eggert@twinsun.com> * strftime.c (strftime): Add support for %EC and %Ey. Fix support for %EY. This uses the new _nl_get_era_entry function. Fri Sep 27 14:12:27 1996 Ulrich Drepper <drepper@cygnus.com> Security related patch by Elliot Lee <sopwith@redhat.com> and David Holland <dholland@eecs.harvard.edu>. * inet/rexec.c (rexec): Increase size of `num' array from 8 to 32. * inet/ruserpass.c (ruserpass): Don't allow $HOME envvar to not exist. * sysdeps/generic/getenv.c (__secure_getenv): New function. Return NULL when programs runs with SUID or SGID enabled. * sysdeps/stub/getenv.c: Make __secure_getenv an alias of getenv. * stdlib/stdlib.h: Add prototype for __secure_getenv. * locale/setlocale.c: Use __secure_getenv. * resolv/res_init.c: Likewise. * resolv/res_query.c: Likewise. * inet/ruserpass.c: Likewise. * sysdeps/posix/tempname.c: Likewise. * malloc/mtrace.c: Likewise. * catgets/catgets.c: Likewise. Make temporary file handling functions reentrant. * stdio-common/tmpnam.c: Rewrite to have own buffer to write result to. The called __stdio_gen_tempname function must be thread safe. * stdio-common/tmpnam_r.c: New file. * stdio/stdio.h: Add prototype for `tmpnam_r'. Change prototype for __stdio_gen_tempname. * stdio/libio.h: Likewise. * sysdeps/posix/tempname.c: Add new parameters and use them instead of static buffer. Don't reset `indeces' when PID changed between calls. Don't fail for long running programs when index counter once reached the limit. * sysdeps/stub/tempname.c: Likewise. * stdio-common/tempnam.c: Provide local buffer as extra argument to __stdio_gen_tempname. This makes this function reentrant. * stdio-common/tmpfile.c: Likewise. * stdio-common/temptest.c: Provide extra argument to __stdio_gen_tempname. * manual/filesys.texi: Describe tmpnam_r and add comments about reentrancy of the functions. * inet/rcmd.c: Fixed address length handling. * sysdeps/posix/mk-stdiolim.c: Count final \0 byte in L_tmpnam value. * time/strftime.c: Remove unused variables alt_digits and end_alt_digits. * sysdeps/unix/sysv/linux/sys/sysinfo.h: Correct prototype names for get_nprocs and get_nprocs_conf. * sysdeps/generic/sys/sysinfo.h: Likewise. * stdlib/test-canon.c: Finally do the right fix. * misc/Makefile: Only compile force-wrapper when compiling reentrant libc.
1996-09-28 03:24:10 +00:00
__profile_frequency (void)
update from main archive 960906 Sat Sep 7 05:15:45 1996 Ulrich Drepper <drepper@cygnus.com> * libio/iofdopen: Initialize _lock field only if _IO_MTSAFE_IO. * libio/iofopen: Likewise. * libio/iofopncook.c: Likewise. * libio/iopopen.c: Likewise. * libio/iovsprintf.c: Likewise. * libio/iovsscanf.c: Likewise. * libio/memstream.c: Likewise. * libio/vasprintf.c: Likewise. * libio/vdprintf.c: Likewise. * libio/vsnprintf.c: Likewise. Sat Sep 7 03:55:47 1996 Ulrich Drepper <drepper@cygnus.com> * Makeconfig (soversions.mk): Also use shlib-versions files in add-on directories. * config.make.in (config-defines): Remove. Not used anymore. (defines): New variable. Initiliazed by @DEFINES@. * configure.in: Add AC_SUBST(DEFINES). * libio/Makefile (routines): When compiling reentrant libc add clearerr_u, feof_u, ferror_u, fputc_u, getc_u, getchar_u, iofflush_u, putc_u, putchar_u, ioflockfile. (CPPFLAGS): Add -D_IO_MTSAFE_IO for reentrant libc. * sysdeps/stub/libc-lock.h: Add stubs for __libc_cleanup_region_start and __libc_cleanup_region_end. * sysdeps/unix/i386/sysdep.S [_LIBC_REENTRANT]: Set errno using __errno_location function. * sysdeps/unix/sysv/linux/i386/sysdep.S [_LIBC_REENTRANT]: Set errno using __errno_location function. (__errno_location): New function. * sysdeps/unix/sysv/linux/i386/sysdep.h [PIC]: Add second syscall_error handler for reentrant libc. * sysdeps/unix/opendir.c: Remove unneeded `;'. * libio.h [_IO_MTSAFE_IO]: Include <pthread.h>. [!_IO_MTSAFE_IO]: Define _IO_flockfile and _IO_funlockfile as empty macros. * libioP.h: Include <libc-lock.h>. * libio/stdio.h: Add prototypes for *_locked and *_unlocked functions. * libio/clearerr.c: Use _IO_ protected versions of flockfile and funlockfile to be namespace clean. * libio/genops.c: Use __libc_lock_* macros for handling lock. * libio/iofdopen: Add initialization of _lock in _IO_FILE. * libio/iofopen: Likewise. * libio/iofopncook.c: Likewise. * libio/iopopen.c: Likewise. * libio/iovsprintf.c: Likewise. * libio/iovsscanf.c: Likewise. * libio/memstream.c: Likewise. * libio/vasprintf.c: Likewise. * libio/vdprintf.c: Likewise. * libio/vsnprintf.c: Likewise. * libio/fgetc.c: Use __libc_cleanup_region_* macros instead of flockfile etc. * libio/fputc.c: Likewise. * libio/freopen.c: Likewise. * libio/fseek.c: Likewise. * libio/getc.c: Likewise. * libio/getchar.c: Likewise. * libio/iofclose.c: Likewise. * libio/iofflush.c: Likewise. * libio/iofgetpos.c: Likewise. * libio/iofgets.c: Likewise. * libio/iofputs.c: Likewise. * libio/iofread.c: Likewise. * libio/iofsetpos.c: Likewise. * libio/ioftell.c: Likewise. * libio/iofwrite.c: Likewise. * libio/iogetdelim.c: Likewise. * libio/iogets.c: Likewise. * libio/ioputs.c: Likewise. * libio/iosetbuffer.c: Likewise. * libio/iosetvbuf.c: Likewise. * libio/ioungetc.c: Likewise. * libio/putc.c: Likewise. * libio/putchar.c: Likewise. * libio/rewind.c: Likewise. * stdio-common/vfprintf.c: Likewise. * stdio-common/vfscanf.c: Likewise. * libio/clearerr_u.c: Correct alias name. * libio/ferror_u.c: Likewise. * libio/fileno.c: Likewise. * libio/fputc_u.c: Likewise. * libio/getc.c: Likewise. * libio/getc_u.c: Likewise. * libio/getchar.c: Likewise. * libio/getchar_u.c: Likewise. * libio/putc.c: Likewise. * libio/putchar.c: Likewise. * libio/feof_u.c: Undefine macro with name of function before definition of function itself. * libio/ioflockfile.c: New file. Implementation of flockfile and funlockfile. * libio/putchar_u.c: Fix typo. Use stdout instead of fp. * malloc/malloc.h: Don't include <libc-lock.h> and don't declare _malloc_loc. * malloc/free.c: Include <libc-lock.h>. * malloc/realloc.c: Likewise. * malloc/malloc-find.c: Likewise. * malloc/malloc-size.c: Likewise. * malloc/malloc-walk.c: Likewise. * malloc/memalign.c: Likewise. * malloc/malloc.c: Likewise. * sysdeps/i386/dl-machine.h: Correct clearing of _dl_starting_up. Fri Sep 6 19:38:49 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/stub/libc-lock.h: Define __libc_lock_critical_start and __libc_lock_critical_end as empty macros. * malloc/malloc.h: Don't include <libc-lock.h> and don't declare __libc_malloc_lock. * malloc/free.c: Include <libc-lock.h>. * malloc/malloc-find.c: Likewise. * malloc/malloc-size.c: Likewise. * malloc/malloc-walk.c: Likewise. * malloc/malloc.c: Likewise. * malloc/memalign.c: Likewise. * malloc/realloc.c: Likewise. * Makefile: Undo change from Mon Sep 2 22:15:14 1996. No more extra_solibs pass. * Rules: Likewise. * extra-lib.mk: Likewise. * manual/Makefile: Likewise. * db/Makefile (makedb): Choose dependecies based on build-shared. Patch by Andres Schwab. * sysdeps/posix/sysconf.c: Don't use PTHREAD_DESTRUCTOR_ITERATIONS but _POSIX_THREAD_DESTRUCTOR_ITERATIONS. * sysdeps/unix/sysv/linux/errnos.h: New file. * sysdeps/unix/sysv/linux/schedbits.h: New file. * sysdeps/unix/sysv/linux/waitflags.h: New file. * sysdeps/unix/sysv/linux/gnu/types.h: Add definition of `key_t'. Fri Sep 6 08:26:31 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * rpm/template: Fix typo in %build section. Fri Sep 6 03:31:07 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/errnos.h: Don't define errno macro when building libc without thread support. * resolv/netdb.h: Likewise for h_errno macro. Thu Sep 5 23:01:48 1996 Ulrich Drepper <drepper@cygnus.com> * libc-symbols.h: Add new macro weak_const_function. It's like weak_function, but the function is additionally marked as const. * features.h: Only include <sys/cdefs.h> if !__ASSEMBLER__. Thu Sep 5 22:55:49 1996 Richard Henderson <rth@tamu.edu> * inet/herrno.c (__h_errno_location): New function. (h_errno): Make strong_alias __h_errno so that we can access the variable even if `h_errno' is a macro. * resolv/netdb.h: Define macro h_errno to access thread specific version of h_errno variable. Declare alias __h_errno for h_errno. * resolv/res_query (h_errno): Remove definition. * sysdeps/unix/sysv/linux/errnos.h [!__ASSEMBLER__ && __USE_REENTRANT]: Add macro `errno' to get thread specific variable. * sysdeps/unix/alpha/sysdep.S [_LIBC_REENTRANT]: Set errno using __errno_location function. (__errno_location): New function. Thu Sep 5 21:08:44 1996 Ulrich Drepper <drepper@cygnus.com> * posix/gnu/types.h: Remove definition of key_t. * sysdeps/generic/gnu/types.h: Move it to here. * sysdeps/unix/sysv/linux/gnu/types.h: Add Linux specific definition of key_t. * sysdeps/unix/sysv/linux/waitflags.h: New file. Linux specific definitions. * sysdeps/unix/sysv/linux/schedbits.h: New file. Include clone prototypes and associated flags. Thu Sep 5 08:58:47 1996 Richard Henderson <rth@tamu.edu> * sysdeps/alpha/elf/start.S: Make _start global again. hertz. here. Wed Sep 4 16:16:13 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/mach/hurd/send.c (__send): De-ANSI-fy. * sysdeps/mach/hurd/sendto.c (sendto): Likewise.
1996-09-07 04:10:57 +00:00
{
/*
* 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);
}