/* * Copyright (c) 1999, 2003, 2004, 2007, 2008 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #if defined(PROFILE) #error This module cannot be compiled with profiling #endif /*- * 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. */ /* * History * 2-Mar-90 Gregg Kellogg (gk) at NeXT * Changed include of kern/mach.h to kern/mach_interface.h * * 1-May-90 Matthew Self (mself) at NeXT * Added prototypes, and added casts to remove all warnings. * Made all private data static. * vm_deallocate old data defore vm_allocate'ing new data. * Added new functions monoutput and monreset. * * 18-Dec-92 Development Environment Group at NeXT * Added multiple profile areas, the ability to profile shlibs and the * ability to profile rld loaded code. Moved the machine dependent mcount * routine out of this source file. * * 13-Dec-92 Development Environment Group at NeXT * Added support for dynamic shared libraries. Also removed the code that * had been ifdef'ed out for profiling fixed shared libraries and * objective-C. * * 29-Aug-11 Vishal Patel (vishal_patel) at Apple * Removed code that made calls to deprecated syscalls profil() and * add_profil(). The syscalls are not supported since 2008 and planned * to be completely removed soon. Similarly the monitor apis are also * deprecated. * */ #if defined(LIBC_SCCS) && !defined(lint) static char sccsid[] = "@(#)gmon.c 5.2 (Berkeley) 6/21/85"; #endif /* * see profil(2) where this (SCALE_1_TO_1) is describe (incorrectly). * * The correct description: scale is a fixed point value with * the binary point in the middle of the 32 bit value. (Bit 16 is * 1, bit 15 is .5, etc.) * * Setting the scale to "1" (i.e. 0x10000), results in the kernel * choosing the profile bucket address 1 to 1 with the pc sampled. * Since buckets are shorts, if the profiling base were 0, then a pc * of 0 increments bucket 0, a pc of 2 increments bucket 1, and a pc * of 4 increments bucket 2.) (Actually, this seems a little bogus, * 1 to 1 should map pc's to buckets -- that's probably what was * intended from the man page, but historically.... */ #define SCALE_1_TO_1 0x10000L #define MSG "No space for monitor buffer(s)\n" #include <stdio.h> #include <libc.h> #include <monitor.h> #include <sys/types.h> #include <sys/gmon.h> #include <sys/param.h> #include <sys/sysctl.h> #include <mach/mach.h> #include <mach-o/loader.h> #include <mach-o/dyld.h> #include <mach-o/getsect.h> /* * These are defined in here and these declarations need to be moved to libc.h * where the other declarations for the monitor(3) routines are declared. */ extern void moninit( void); extern void monaddition( char *lowpc, char *highpc); extern void moncount( char *frompc, char *selfpc); extern void monreset( void); extern void monoutput( const char *filename); void moninit( void) { return; // Deprecated api. do nothing } void monstartup( char *lowpc, char *highpc) { return; // Deprecated api. do nothing } /* * monaddtion() is used for adding additional pc ranges to profile. This is * used for profiling dyld loaded code. */ void monaddition( char *lowpc, char *highpc) { return; // Deprecated api. do nothing } void monreset( void) { return; // Deprecated api. do nothing } void monoutput( const char *filename) { return; // Deprecated api. do nothing } void monitor( char *lowpc, char *highpc, char *buf, int bufsiz, int nfunc) /* nfunc is not used; available for compatability only. */ { return; // Deprecated api. do nothing } /* * Control profiling * profiling is what mcount checks to see if * all the data structures are ready. */ void moncontrol( int mode) { return; // Deprecated api. do nothing } void moncount( char *frompc, char *selfpc) { return; //Deprecated api. do nothing }