rlm@1: /*
rlm@1:  * Copyright (c) 1983, 1991, 1993, 2001
rlm@1:  *      The Regents of the University of California.  All rights reserved.
rlm@1:  *
rlm@1:  * Redistribution and use in source and binary forms, with or without
rlm@1:  * modification, are permitted provided that the following conditions
rlm@1:  * are met:
rlm@1:  * 1. Redistributions of source code must retain the above copyright
rlm@1:  *    notice, this list of conditions and the following disclaimer.
rlm@1:  * 2. Redistributions in binary form must reproduce the above copyright
rlm@1:  *    notice, this list of conditions and the following disclaimer in the
rlm@1:  *    documentation and/or other materials provided with the distribution.
rlm@1:  * 3. Neither the name of the University nor the names of its contributors
rlm@1:  *    may be used to endorse or promote products derived from this software
rlm@1:  *    without specific prior written permission.
rlm@1:  *
rlm@1:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
rlm@1:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
rlm@1:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
rlm@1:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
rlm@1:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
rlm@1:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
rlm@1:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
rlm@1:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
rlm@1:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
rlm@1:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
rlm@1:  * SUCH DAMAGE.
rlm@1:  */
rlm@1: #ifndef gmon_h
rlm@1: #define gmon_h
rlm@1: 
rlm@1: #include <stdint.h>
rlm@1: typedef uint32_t u32;
rlm@1: 
rlm@1: /* Size of the 4.4BSD gmon header */
rlm@1: #define GMON_HDRSIZE_BSD44_32 (4 + 4 + 4 + 4 + 4 + (3 * 4))
rlm@1: #define GMON_HDRSIZE_BSD44_64 (8 + 8 + 4 + 4 + 4 + (3 * 4))
rlm@1: 
rlm@1: #if 0 /* For documentation purposes only.  */
rlm@1:   struct raw_phdr
rlm@1:     {
rlm@1:       char low_pc[sizeof(void *)]; /* base pc address of sample buffer */
rlm@1:       char high_pc[sizeof(void *)];/* max pc address of sampled buffer */
rlm@1:       char ncnt[4];		   /* size of sample buffer (plus this
rlm@1: 				      header) */
rlm@1: 
rlm@1:       char version[4];		   /* version number */
rlm@1:       char profrate[4];		   /* profiling clock rate */
rlm@1:       char spare[3*4];		   /* reserved */
rlm@1:     };
rlm@1: #endif
rlm@1: 
rlm@1: #define GMONVERSION     0x00051879
rlm@1: 
rlm@1: /* Size of the old BSD gmon header */
rlm@1: #define GMON_HDRSIZE_OLDBSD_32 (4 + 4 + 4) 
rlm@1: 
rlm@1: /* FIXME: Checking host compiler defines here means that we can't
rlm@1:    use a cross gprof alpha OSF.  */
rlm@1: #if defined(__alpha__) && defined (__osf__) 
rlm@1: #define GMON_HDRSIZE_OLDBSD_64 (8 + 8 + 4 + 4)
rlm@1: #else
rlm@1: #define GMON_HDRSIZE_OLDBSD_64 (8 + 8 + 4)
rlm@1: #endif
rlm@1: 
rlm@1: #if 0 /* For documentation purposes only.  */
rlm@1:   struct old_raw_phdr
rlm@1:     {
rlm@1:       char low_pc[sizeof(void *)]; /* base pc address of sample buffer */
rlm@1:       char high_pc[sizeof(void *)];/* max pc address of sampled buffer */
rlm@1:       char ncnt[4];		   /* size of sample buffer (plus this
rlm@1: 				      header) */
rlm@1: #if defined (__alpha__) && defined (__osf__)
rlm@1:       /*
rlm@1:        * DEC's OSF v3.0 uses 4 bytes of padding to bring the header to
rlm@1:        * a size that is a multiple of 8.
rlm@1:        */
rlm@1:       char pad[4];
rlm@1: #endif
rlm@1:     };
rlm@1: #endif
rlm@1: 
rlm@1: /*
rlm@1:  * Histogram counters are unsigned shorts:
rlm@1:  */
rlm@1: #define	HISTCOUNTER unsigned short
rlm@1: 
rlm@1: /*
rlm@1:  * Fraction of text space to allocate for histogram counters here, 1/2:
rlm@1:  */
rlm@1: #define	HISTFRACTION	2
rlm@1: 
rlm@1: /*
rlm@1:  * Fraction of text space to allocate for from hash buckets.  The
rlm@1:  * value of HASHFRACTION is based on the minimum number of bytes of
rlm@1:  * separation between two subroutine call points in the object code.
rlm@1:  * Given MIN_SUBR_SEPARATION bytes of separation the value of
rlm@1:  * HASHFRACTION is calculated as:
rlm@1:  *
rlm@1:  *      HASHFRACTION = MIN_SUBR_SEPARATION / (2 * sizeof(short) - 1);
rlm@1:  *
rlm@1:  * For the VAX, the shortest two call sequence is:
rlm@1:  *
rlm@1:  *      calls   $0,(r0)
rlm@1:  *      calls   $0,(r0)
rlm@1:  *
rlm@1:  * which is separated by only three bytes, thus HASHFRACTION is
rlm@1:  * calculated as:
rlm@1:  *
rlm@1:  *      HASHFRACTION = 3 / (2 * 2 - 1) = 1
rlm@1:  *
rlm@1:  * Note that the division above rounds down, thus if MIN_SUBR_FRACTION
rlm@1:  * is less than three, this algorithm will not work!
rlm@1:  */
rlm@1: #define	HASHFRACTION 1
rlm@1: 
rlm@1: /*
rlm@1:  * Percent of text space to allocate for tostructs with a minimum:
rlm@1:  */
rlm@1: #define ARCDENSITY	2
rlm@1: #define MINARCS		50
rlm@1: 
rlm@1: struct tostruct
rlm@1:   {
rlm@1:     u32 selfpc;
rlm@1:     int count;
rlm@1:     unsigned short link;
rlm@1:   };
rlm@1: 
rlm@1: /*
rlm@1:  * A raw arc, with pointers to the calling site and the called site
rlm@1:  * and a count.  Everything is defined in terms of characters so
rlm@1:  * as to get a packed representation (otherwise, different compilers
rlm@1:  * might introduce different padding):
rlm@1:  */
rlm@1: #if 0 /* For documentation purposes only.  */
rlm@1:   struct raw_arc
rlm@1:     {
rlm@1:       char from_pc[sizeof(void *)];
rlm@1:       char self_pc[sizeof(void *)];
rlm@1:       char count[sizeof(long)];
rlm@1:     };
rlm@1: #endif
rlm@1: 
rlm@1: /*
rlm@1:  * General rounding functions:
rlm@1:  */
rlm@1: #define ROUNDDOWN(x,y)	(((x)/(y))*(y))
rlm@1: #define ROUNDUP(x,y)	((((x)+(y)-1)/(y))*(y))
rlm@1: 
rlm@1: #endif /* gmon_h */