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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.18.50/] [gprof/] [gmon.h] - Rev 267
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/* * Copyright (c) 1983, 1991, 1993, 2001 * 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. 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. */ #ifndef gmon_h #define gmon_h /* Size of the 4.4BSD gmon header */ #define GMON_HDRSIZE_BSD44_32 (4 + 4 + 4 + 4 + 4 + (3 * 4)) #define GMON_HDRSIZE_BSD44_64 (8 + 8 + 4 + 4 + 4 + (3 * 4)) /* *INDENT-OFF* */ /* For documentation purposes only. struct raw_phdr { char low_pc[sizeof(void *)]; -- base pc address of sample buffer char high_pc[sizeof(void *)]; -- max pc address of sampled buffer char ncnt[4]; -- size of sample buffer (plus this header) char version[4]; -- version number char profrate[4]; -- profiling clock rate char spare[3*4]; -- reserved }; */ /* *INDENT-ON* */ #define GMONVERSION 0x00051879 /* Size of the old BSD gmon header */ #define GMON_HDRSIZE_OLDBSD_32 (4 + 4 + 4) /* FIXME: Checking host compiler defines here means that we can't use a cross gprof alpha OSF. */ #if defined(__alpha__) && defined (__osf__) #define GMON_HDRSIZE_OLDBSD_64 (8 + 8 + 4 + 4) #else #define GMON_HDRSIZE_OLDBSD_64 (8 + 8 + 4) #endif /* *INDENT-OFF* */ /* For documentation purposes only. struct old_raw_phdr { char low_pc[sizeof(void *)]; -- base pc address of sample buffer char high_pc[sizeof(void *)] -- max pc address of sampled buffer char ncnt[4]; -- size of sample buffer (plus this header) if defined (__alpha__) && defined (__osf__) char pad[4]; -- DEC's OSF v3.0 uses 4 bytes of padding -- to bring the header to a size that is a -- multiple of 8. endif }; */ /* *INDENT-ON* */ /* * Histogram counters are unsigned shorts: */ #define HISTCOUNTER unsigned short /* * Fraction of text space to allocate for histogram counters here, 1/2: */ #define HISTFRACTION 2 /* * Fraction of text space to allocate for from hash buckets. The * value of HASHFRACTION is based on the minimum number of bytes of * separation between two subroutine call points in the object code. * Given MIN_SUBR_SEPARATION bytes of separation the value of * HASHFRACTION is calculated as: * * HASHFRACTION = MIN_SUBR_SEPARATION / (2 * sizeof(short) - 1); * * For the VAX, the shortest two call sequence is: * * calls $0,(r0) * calls $0,(r0) * * which is separated by only three bytes, thus HASHFRACTION is * calculated as: * * HASHFRACTION = 3 / (2 * 2 - 1) = 1 * * Note that the division above rounds down, thus if MIN_SUBR_FRACTION * is less than three, this algorithm will not work! */ #define HASHFRACTION 1 /* * Percent of text space to allocate for tostructs with a minimum: */ #define ARCDENSITY 2 #define MINARCS 50 struct tostruct { char *selfpc; int count; unsigned short link; }; /* * A raw arc, with pointers to the calling site and the called site * and a count. Everything is defined in terms of characters so * as to get a packed representation (otherwise, different compilers * might introduce different padding): */ /* *INDENT-OFF* */ /* For documentation purposes only. struct raw_arc { char from_pc[sizeof(void *)]; char self_pc[sizeof(void *)]; char count[sizeof(long)]; }; */ /* *INDENT-ON* */ /* * General rounding functions: */ #define ROUNDDOWN(x,y) (((x)/(y))*(y)) #define ROUNDUP(x,y) ((((x)+(y)-1)/(y))*(y)) #endif /* gmon_h */
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