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/* $OpenBSD: gmon.h,v 1.3 1996/04/21 22:31:46 deraadt Exp $ */ |
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/* $NetBSD: gmon.h,v 1.5 1996/04/09 20:55:30 cgd Exp $ */ |
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|
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/*- |
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* Copyright (c) 1982, 1986, 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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* @(#)gmon.h 8.2 (Berkeley) 1/4/94 |
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*/ |
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|
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/* |
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* This file is taken from Cygwin distribution. Please keep it in sync. |
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* The differences should be within __MINGW32__ guard. |
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*/ |
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|
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#ifndef _SYS_GMON_H_ |
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#define _SYS_GMON_H_ |
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|
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#ifndef __P |
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#define __P(x) x |
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#endif |
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|
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#include <profile.h> |
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|
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#ifdef __MINGW32__ |
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#ifndef _BSDTYPES_DEFINED |
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typedef unsigned char u_char; |
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typedef unsigned short u_short; |
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typedef unsigned int u_int; |
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typedef unsigned long u_long; |
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#define _BSDTYPES_DEFINED |
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#endif /* _BSDTYPES_DEFINED */ |
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#endif /* __MINGW32__*/ |
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|
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/* |
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* Structure prepended to gmon.out profiling data file. |
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*/ |
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struct gmonhdr { |
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u_long lpc; /* base pc address of sample buffer */ |
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u_long hpc; /* max pc address of sampled buffer */ |
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int ncnt; /* size of sample buffer (plus this header) */ |
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int version; /* version number */ |
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int profrate; /* profiling clock rate */ |
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int spare[3]; /* reserved */ |
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}; |
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#define GMONVERSION 0x00051879 |
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|
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/* |
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* histogram counters are unsigned shorts (according to the kernel). |
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*/ |
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#define HISTCOUNTER unsigned short |
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|
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/* |
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* fraction of text space to allocate for histogram counters here, 1/2 |
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*/ |
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#define HISTFRACTION 2 |
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|
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/* |
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* Fraction of text space to allocate for from hash buckets. |
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* The value of HASHFRACTION is based on the minimum number of bytes |
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* of separation between two subroutine call points in the object code. |
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* Given MIN_SUBR_SEPARATION bytes of separation the value of |
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* HASHFRACTION is calculated as: |
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* |
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* HASHFRACTION = MIN_SUBR_SEPARATION / (2 * sizeof(short) - 1); |
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* |
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* For example, on the VAX, the shortest two call sequence is: |
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* |
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* calls $0,(r0) |
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* calls $0,(r0) |
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* |
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* which is separated by only three bytes, thus HASHFRACTION is |
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* calculated as: |
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* |
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* HASHFRACTION = 3 / (2 * 2 - 1) = 1 |
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* |
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* Note that the division above rounds down, thus if MIN_SUBR_FRACTION |
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* is less than three, this algorithm will not work! |
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* |
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* In practice, however, call instructions are rarely at a minimal |
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* distance. Hence, we will define HASHFRACTION to be 2 across all |
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* architectures. This saves a reasonable amount of space for |
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* profiling data structures without (in practice) sacrificing |
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* any granularity. |
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*/ |
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#define HASHFRACTION 2 |
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|
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/* |
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* percent of text space to allocate for tostructs with a minimum. |
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*/ |
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#define ARCDENSITY 2 |
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#define MINARCS 50 |
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#define MAXARCS ((1 << (8 * sizeof(HISTCOUNTER))) - 2) |
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|
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struct tostruct { |
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u_long selfpc; |
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long count; |
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u_short link; |
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u_short pad; |
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}; |
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|
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/* |
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* a raw arc, with pointers to the calling site and |
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* the called site and a count. |
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*/ |
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struct rawarc { |
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u_long raw_frompc; |
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u_long raw_selfpc; |
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long raw_count; |
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}; |
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|
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/* |
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* general rounding functions. |
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*/ |
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#define ROUNDDOWN(x,y) (((x)/(y))*(y)) |
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#define ROUNDUP(x,y) ((((x)+(y)-1)/(y))*(y)) |
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|
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/* |
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* The profiling data structures are housed in this structure. |
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*/ |
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struct gmonparam { |
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int state; |
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u_short *kcount; |
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u_long kcountsize; |
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u_short *froms; |
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u_long fromssize; |
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struct tostruct *tos; |
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u_long tossize; |
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long tolimit; |
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u_long lowpc; |
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u_long highpc; |
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u_long textsize; |
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u_long hashfraction; |
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}; |
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extern struct gmonparam _gmonparam; |
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|
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/* |
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* Possible states of profiling. |
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*/ |
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#define GMON_PROF_ON 0 |
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#define GMON_PROF_BUSY 1 |
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#define GMON_PROF_ERROR 2 |
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#define GMON_PROF_OFF 3 |
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|
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/* |
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* Sysctl definitions for extracting profiling information from the kernel. |
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*/ |
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#define GPROF_STATE 0 /* int: profiling enabling variable */ |
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#define GPROF_COUNT 1 /* struct: profile tick count buffer */ |
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#define GPROF_FROMS 2 /* struct: from location hash bucket */ |
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#define GPROF_TOS 3 /* struct: destination/count structure */ |
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#define GPROF_GMONPARAM 4 /* struct: profiling parameters (see above) */ |
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#endif /* !_SYS_GMONH_ */ |