printgprof.c

早期freebsd实现

/*
 * Copyright (c) 1983, 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.
 */

#ifndef lint
static char sccsid[] = "@(#)printgprof.c	8.1 (Berkeley) 6/6/93";
#endif /* not lint */

#include "gprof.h"
#include "pathnames.h"

printprof()
{
    register nltype	*np;
    nltype		**sortednlp;
    int			index, timecmp();

    actime = 0.0;
    printf( "\f\n" );
    flatprofheader();
	/*
	 *	Sort the symbol table in by time
	 */
    sortednlp = (nltype **) calloc( nname , sizeof(nltype *) );
    if ( sortednlp == (nltype **) 0 ) {
	fprintf( stderr , "[printprof] ran out of memory for time sorting\n" );
    }
    for ( index = 0 ; index < nname ; index += 1 ) {
	sortednlp[ index ] = &nl[ index ];
    }
    qsort( sortednlp , nname , sizeof(nltype *) , timecmp );
    for ( index = 0 ; index < nname ; index += 1 ) {
	np = sortednlp[ index ];
	flatprofline( np );
    }
    actime = 0.0;
    free( sortednlp );
}

timecmp( npp1 , npp2 )
    nltype **npp1, **npp2;
{
    double	timediff;
    long	calldiff;

    timediff = (*npp2) -> time - (*npp1) -> time;
    if ( timediff > 0.0 )
	return 1 ;
    if ( timediff < 0.0 )
	return -1;
    calldiff = (*npp2) -> ncall - (*npp1) -> ncall;
    if ( calldiff > 0 )
	return 1;
    if ( calldiff < 0 )
	return -1;
    return( strcmp( (*npp1) -> name , (*npp2) -> name ) );
}

    /*
     *	header for flatprofline
     */
flatprofheader()
{
    
    if ( bflag ) {
	printblurb( _PATH_FLAT_BLURB );
    }
    printf( "\ngranularity: each sample hit covers %d byte(s)" ,
	    (long) scale * sizeof(UNIT) );
    if ( totime > 0.0 ) {
	printf( " for %.2f%% of %.2f seconds\n\n" ,
		100.0/totime , totime / hz );
    } else {
	printf( " no time accumulated\n\n" );
	    /*
	     *	this doesn't hurt sinc eall the numerators will be zero.
	     */
	totime = 1.0;
    }
    printf( "%5.5s %10.10s %8.8s %8.8s %8.8s %8.8s  %-8.8s\n" ,
	    "%  " , "cumulative" , "self  " , "" , "self  " , "total " , "" );
    printf( "%5.5s %10.10s %8.8s %8.8s %8.8s %8.8s  %-8.8s\n" ,
	    "time" , "seconds " , "seconds" , "calls" ,
	    "ms/call" , "ms/call" , "name" );
}

flatprofline( np )
    register nltype	*np;
{

    if ( zflag == 0 && np -> ncall == 0 && np -> time == 0 ) {
	return;
    }
    actime += np -> time;
    printf( "%5.1f %10.2f %8.2f" ,
	100 * np -> time / totime , actime / hz , np -> time / hz );
    if ( np -> ncall != 0 ) {
	printf( " %8d %8.2f %8.2f  " , np -> ncall ,
	    1000 * np -> time / hz / np -> ncall ,
	    1000 * ( np -> time + np -> childtime ) / hz / np -> ncall );
    } else {
	printf( " %8.8s %8.8s %8.8s  " , "" , "" , "" );
    }
    printname( np );
    printf( "\n" );
}

gprofheader()
{

    if ( bflag ) {
	printblurb( _PATH_CALLG_BLURB );
    }
    printf( "\ngranularity: each sample hit covers %d byte(s)" ,
	    (long) scale * sizeof(UNIT) );
    if ( printtime > 0.0 ) {
	printf( " for %.2f%% of %.2f seconds\n\n" ,
		100.0/printtime , printtime / hz );
    } else {
	printf( " no time propagated\n\n" );
	    /*
	     *	this doesn't hurt, since all the numerators will be 0.0
	     */
	printtime = 1.0;
    }
    printf( "%6.6s %5.5s %7.7s %11.11s %7.7s/%-7.7s     %-8.8s\n" ,
	"" , "" , "" , "" , "called" , "total" , "parents");
    printf( "%-6.6s %5.5s %7.7s %11.11s %7.7s+%-7.7s %-8.8s\t%5.5s\n" ,
	"index" , "%time" , "self" , "descendents" ,
	"called" , "self" , "name" , "index" );
    printf( "%6.6s %5.5s %7.7s %11.11s %7.7s/%-7.7s     %-8.8s\n" ,
	"" , "" , "" , "" , "called" , "total" , "children");
    printf( "\n" );
}

gprofline( np )
    register nltype	*np;
{
    char	kirkbuffer[ BUFSIZ ];

    sprintf( kirkbuffer , "[%d]" , np -> index );
    printf( "%-6.6s %5.1f %7.2f %11.2f" ,
	    kirkbuffer ,
	    100 * ( np -> propself + np -> propchild ) / printtime ,
	    np -> propself / hz ,
	    np -> propchild / hz );
    if ( ( np -> ncall + np -> selfcalls ) != 0 ) {
	printf( " %7d" , np -> npropcall );
	if ( np -> selfcalls != 0 ) {
	    printf( "+%-7d " , np -> selfcalls );
	} else {
	    printf( " %7.7s " , "" );
	}
    } else {
	printf( " %7.7s %7.7s " , "" , "" );
    }
    printname( np );
    printf( "\n" );
}

printgprof(timesortnlp)
    nltype	**timesortnlp;
{
    int		index;
    nltype	*parentp;

	/*
	 *	Print out the structured profiling list
	 */
    gprofheader();
    for ( index = 0 ; index < nname + ncycle ; index ++ ) {
	parentp = timesortnlp[ index ];
	if ( zflag == 0 &&
	     parentp -> ncall == 0 &&
	     parentp -> selfcalls == 0 &&
	     parentp -> propself == 0 &&
	     parentp -> propchild == 0 ) {
	    continue;
	}
	if ( ! parentp -> printflag ) {
	    continue;
	}
	if ( parentp -> name == 0 && parentp -> cycleno != 0 ) {
		/*
		 *	cycle header
		 */
	    printcycle( parentp );
	    printmembers( parentp );
	} else {
	    printparents( parentp );
	    gprofline( parentp );
	    printchildren( parentp );
	}
	printf( "\n" );
	printf( "-----------------------------------------------\n" );
	printf( "\n" );
    }
    free( timesortnlp );
}

    /*
     *	sort by decreasing propagated time
     *	if times are equal, but one is a cycle header,
     *		say that's first (e.g. less, i.e. -1).
     *	if one's name doesn't have an underscore and the other does,
     *		say the one is first.
     *	all else being equal, sort by names.
     */
int
totalcmp( npp1 , npp2 )
    nltype	**npp1;
    nltype	**npp2;
{
    register nltype	*np1 = *npp1;
    register nltype	*np2 = *npp2;
    double		diff;

    diff =    ( np1 -> propself + np1 -> propchild )
	    - ( np2 -> propself + np2 -> propchild );
    if ( diff < 0.0 )
	    return 1;
    if ( diff > 0.0 )
	    return -1;
    if ( np1 -> name == 0 && np1 -> cycleno != 0 ) 
	return -1;
    if ( np2 -> name == 0 && np2 -> cycleno != 0 )
	return 1;
    if ( np1 -> name == 0 )
	return -1;
    if ( np2 -> name == 0 )
	return 1;
    if ( *(np1 -> name) != '_' && *(np2 -> name) == '_' )
	return -1;
    if ( *(np1 -> name) == '_' && *(np2 -> name) != '_' )
	return 1;
    if ( np1 -> ncall > np2 -> ncall )
	return -1;
    if ( np1 -> ncall < np2 -> ncall ) 
	return 1;
    return strcmp( np1 -> name , np2 -> name );
}

printparents( childp )
    nltype	*childp;
{
    nltype	*parentp;
    arctype	*arcp;
    nltype	*cycleheadp;

    if ( childp -> cyclehead != 0 ) {
	cycleheadp = childp -> cyclehead;
    } else {
	cycleheadp = childp;
    }
    if ( childp -> parents == 0 ) {
	printf( "%6.6s %5.5s %7.7s %11.11s %7.7s %7.7s     <spontaneous>\n" ,
		"" , "" , "" , "" , "" , "" );
	return;
    }
    sortparents( childp );
    for ( arcp = childp -> parents ; arcp ; arcp = arcp -> arc_parentlist ) {
	parentp = arcp -> arc_parentp;
	if ( childp == parentp || ( arcp -> arc_flags & DEADARC ) ||
	     ( childp->cycleno != 0 && parentp->cycleno == childp->cycleno ) ) {
		/*
		 *	selfcall or call among siblings
		 */
	    printf( "%6.6s %5.5s %7.7s %11.11s %7d %7.7s     " ,
		    "" , "" , "" , "" ,
		    arcp -> arc_count , "" );
	    printname( parentp );
	    printf( "\n" );
	} else {
		/*
		 *	regular parent of child
		 */
	    printf( "%6.6s %5.5s %7.2f %11.2f %7d/%-7d     " ,
		    "" , "" ,
		    arcp -> arc_time / hz , arcp -> arc_childtime / hz ,
		    arcp -> arc_count , cycleheadp -> npropcall );
	    printname( parentp );
	    printf( "\n" );
	}
    }
}

printchildren( parentp )
    nltype	*parentp;
{
    nltype	*childp;
    arctype	*arcp;

    sortchildren( parentp );
    arcp = parentp -> children;
    for ( arcp = parentp -> children ; arcp ; arcp = arcp -> arc_childlist ) {
	childp = arcp -> arc_childp;
	if ( childp == parentp || ( arcp -> arc_flags & DEADARC ) ||
	    ( childp->cycleno != 0 && childp->cycleno == parentp->cycleno ) ) {
		/*
		 *	self call or call to sibling
		 */
	    printf( "%6.6s %5.5s %7.7s %11.11s %7d %7.7s     " ,
		    "" , "" , "" , "" , arcp -> arc_count , "" );
	    printname( childp );
	    printf( "\n" );
	} else {
		/*
		 *	regular child of parent
		 */
	    printf( "%6.6s %5.5s %7.2f %11.2f %7d/%-7d     " ,
		    "" , "" ,
		    arcp -> arc_time / hz , arcp -> arc_childtime / hz ,
		    arcp -> arc_count , childp -> cyclehead -> npropcall );
	    printname( childp );
	    printf( "\n" );
	}
    }
}

printname( selfp )
    nltype	*selfp;
{

    if ( selfp -> name != 0 ) {
	printf( "%s" , selfp -> name );
#	ifdef DEBUG
	    if ( debug & DFNDEBUG ) {
		printf( "{%d} " , selfp -> toporder );
	    }
	    if ( debug & PROPDEBUG ) {
		printf( "%5.2f%% " , selfp -> propfraction );