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freebsd-dev/usr.bin/gprof/printgprof.c
Philippe Charnier af2637db52 rework old-style functions prototypes 
reduce WARNS=6 output
2013-02-14 08:16:03 +00:00

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/*
* 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.
* 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.
*/
#if 0
#ifndef lint
static char sccsid[] = "@(#)printgprof.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <err.h>
#include <string.h>
#include "gprof.h"
#include "pathnames.h"
int namecmp(const void *, const void *);
int timecmp(const void *, const void *);
void
printprof(void)
{
register nltype *np;
nltype **sortednlp;
int idx;
actime = 0.0;
printf( "\f\n" );
flatprofheader();
/*
* Sort the symbol table in by time
*/
sortednlp = (nltype **) calloc( nname , sizeof(nltype *) );
if ( sortednlp == (nltype **) 0 )
errx( 1 , "[printprof] ran out of memory for time sorting" );
for ( idx = 0 ; idx < nname ; idx += 1 ) {
sortednlp[ idx ] = &nl[ idx ];
}
qsort( sortednlp , nname , sizeof(nltype *) , timecmp );
for ( idx = 0 ; idx < nname ; idx += 1 ) {
np = sortednlp[ idx ];
flatprofline( np );
}
actime = 0.0;
free( sortednlp );
}
int
timecmp(const void *v1, const void *v2)
{
const nltype **npp1 = (const nltype **)v1;
const nltype **npp2 = (const nltype **)v2;
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
*/
void
flatprofheader(void)
{
if ( bflag ) {
printblurb( _PATH_FLAT_BLURB );
}
printf( "\ngranularity: each sample hit covers %g byte(s)" ,
scale * HISTORICAL_SCALE_2 );
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 since all 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" ,
hz >= 10000000 ? "ns/call" : hz >= 10000 ? "us/call" : "ms/call" ,
hz >= 10000000 ? "ns/call" : hz >= 10000 ? "us/call" : "ms/call" ,
"name" );
}
void
flatprofline(register nltype *np)
{
if ( zflag == 0 && np -> ncall == 0 && np -> time == 0 &&
np -> childtime == 0 ) {
return;
}
actime += np -> time;
if (hz >= 10000)
printf( "%5.1f %10.3f %8.3f" ,
100 * np -> time / totime , actime / hz , np -> time / hz );
else
printf( "%5.1f %10.2f %8.2f" ,
100 * np -> time / totime , actime / hz , np -> time / hz );
if ( np -> ncall != 0 ) {
if (hz >= 10000000)
printf( " %8ld %8.0f %8.0f " , np -> ncall ,
1e9 * np -> time / hz / np -> ncall ,
1e9 * ( np -> time + np -> childtime ) / hz / np -> ncall );
else if (hz >= 10000)
printf( " %8ld %8.0f %8.0f " , np -> ncall ,
1e6 * np -> time / hz / np -> ncall ,
1e6 * ( np -> time + np -> childtime ) / hz / np -> ncall );
else
printf( " %8ld %8.2f %8.2f " , np -> ncall ,
1000 * np -> time / hz / np -> ncall ,
1000 * ( np -> time + np -> childtime ) / hz / np -> ncall );
} else if ( np -> time != 0 || np -> childtime != 0 ) {
printf( " %8ld %7.2f%% %8.8s " , np -> ncall ,
100 * np -> time / ( np -> time + np -> childtime ) , "" );
} else {
printf( " %8.8s %8.8s %8.8s " , "" , "" , "" );
}
printname( np );
printf( "\n" );
}
void
gprofheader(void)
{
if ( bflag ) {
printblurb( _PATH_CALLG_BLURB );
}
printf( "\ngranularity: each sample hit covers %g byte(s)" ,
scale * HISTORICAL_SCALE_2 );
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" );
}
void
gprofline(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( " %7ld" , np -> npropcall );
if ( np -> selfcalls != 0 ) {
printf( "+%-7ld " , np -> selfcalls );
} else {
printf( " %7.7s " , "" );
}
} else {
printf( " %7.7s %7.7s " , "" , "" );
}
printname( np );
printf( "\n" );
}
void
printgprof(nltype **timesortnlp)
{
int idx;
nltype *parentp;
/*
* Print out the structured profiling list
*/
gprofheader();
for ( idx = 0 ; idx < nname + ncycle ; idx ++ ) {
parentp = timesortnlp[ idx ];
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(const void *v1, const void *v2)
{
const nltype **npp1 = (const nltype **)v1;
const nltype **npp2 = (const nltype **)v2;
register const nltype *np1 = *npp1;
register const 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 );
}
void
printparents(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 %7ld %7.7s " ,
"" , "" , "" , "" ,
arcp -> arc_count , "" );
printname( parentp );
printf( "\n" );
} else {
/*
* regular parent of child
*/
printf( "%6.6s %5.5s %7.2f %11.2f %7ld/%-7ld " ,
"" , "" ,
arcp -> arc_time / hz , arcp -> arc_childtime / hz ,
arcp -> arc_count , cycleheadp -> npropcall );
printname( parentp );
printf( "\n" );
}
}
}
void
printchildren(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 %7ld %7.7s " ,
"" , "" , "" , "" , arcp -> arc_count , "" );
printname( childp );
printf( "\n" );
} else {
/*
* regular child of parent
*/
printf( "%6.6s %5.5s %7.2f %11.2f %7ld/%-7ld " ,
"" , "" ,
arcp -> arc_time / hz , arcp -> arc_childtime / hz ,
arcp -> arc_count , childp -> cyclehead -> npropcall );
printname( childp );
printf( "\n" );
}
}
}
void
printname(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 );
}
# endif /* DEBUG */
}
if ( selfp -> cycleno != 0 ) {
printf( " <cycle %d>" , selfp -> cycleno );
}
if ( selfp -> index != 0 ) {
if ( selfp -> printflag ) {
printf( " [%d]" , selfp -> index );
} else {
printf( " (%d)" , selfp -> index );
}
}
}
void
sortchildren(nltype *parentp)
{
arctype *arcp;
arctype *detachedp;
arctype sorted;
arctype *prevp;
/*
* unlink children from parent,
* then insertion sort back on to sorted's children.
* *arcp the arc you have detached and are inserting.
* *detachedp the rest of the arcs to be sorted.
* sorted arc list onto which you insertion sort.
* *prevp arc before the arc you are comparing.
*/
sorted.arc_childlist = 0;
for ( (arcp = parentp -> children)&&(detachedp = arcp -> arc_childlist);
arcp ;
(arcp = detachedp)&&(detachedp = detachedp -> arc_childlist)) {
/*
* consider *arcp as disconnected
* insert it into sorted
*/
for ( prevp = &sorted ;
prevp -> arc_childlist ;
prevp = prevp -> arc_childlist ) {
if ( arccmp( arcp , prevp -> arc_childlist ) != LESSTHAN ) {
break;
}
}
arcp -> arc_childlist = prevp -> arc_childlist;
prevp -> arc_childlist = arcp;
}
/*
* reattach sorted children to parent
*/
parentp -> children = sorted.arc_childlist;
}
void
sortparents(nltype *childp)
{
arctype *arcp;
arctype *detachedp;
arctype sorted;
arctype *prevp;
/*
* unlink parents from child,
* then insertion sort back on to sorted's parents.
* *arcp the arc you have detached and are inserting.
* *detachedp the rest of the arcs to be sorted.
* sorted arc list onto which you insertion sort.
* *prevp arc before the arc you are comparing.
*/
sorted.arc_parentlist = 0;
for ( (arcp = childp -> parents)&&(detachedp = arcp -> arc_parentlist);
arcp ;
(arcp = detachedp)&&(detachedp = detachedp -> arc_parentlist)) {
/*
* consider *arcp as disconnected
* insert it into sorted
*/
for ( prevp = &sorted ;
prevp -> arc_parentlist ;
prevp = prevp -> arc_parentlist ) {
if ( arccmp( arcp , prevp -> arc_parentlist ) != GREATERTHAN ) {
break;
}
}
arcp -> arc_parentlist = prevp -> arc_parentlist;
prevp -> arc_parentlist = arcp;
}
/*
* reattach sorted arcs to child
*/
childp -> parents = sorted.arc_parentlist;
}
/*
* print a cycle header
*/
void
printcycle(nltype *cyclep)
{
char kirkbuffer[ BUFSIZ ];
sprintf( kirkbuffer , "[%d]" , cyclep -> index );
printf( "%-6.6s %5.1f %7.2f %11.2f %7ld" ,
kirkbuffer ,
100 * ( cyclep -> propself + cyclep -> propchild ) / printtime ,
cyclep -> propself / hz ,
cyclep -> propchild / hz ,
cyclep -> npropcall );
if ( cyclep -> selfcalls != 0 ) {
printf( "+%-7ld" , cyclep -> selfcalls );
} else {
printf( " %7.7s" , "" );
}
printf( " <cycle %d as a whole>\t[%d]\n" ,
cyclep -> cycleno , cyclep -> index );
}
/*
* print the members of a cycle
*/
void
printmembers(nltype *cyclep)
{
nltype *memberp;
sortmembers( cyclep );
for ( memberp = cyclep -> cnext ; memberp ; memberp = memberp -> cnext ) {
printf( "%6.6s %5.5s %7.2f %11.2f %7ld" ,
"" , "" , memberp -> propself / hz , memberp -> propchild / hz ,
memberp -> npropcall );
if ( memberp -> selfcalls != 0 ) {
printf( "+%-7ld" , memberp -> selfcalls );
} else {
printf( " %7.7s" , "" );
}
printf( " " );
printname( memberp );
printf( "\n" );
}
}
/*
* sort members of a cycle
*/
void
sortmembers(nltype *cyclep)
{
nltype *todo;
nltype *doing;
nltype *prev;
/*
* detach cycle members from cyclehead,
* and insertion sort them back on.
*/
todo = cyclep -> cnext;
cyclep -> cnext = 0;
for ( (doing = todo)&&(todo = doing -> cnext);
doing ;
(doing = todo )&&(todo = doing -> cnext )){
for ( prev = cyclep ; prev -> cnext ; prev = prev -> cnext ) {
if ( membercmp( doing , prev -> cnext ) == GREATERTHAN ) {
break;
}
}
doing -> cnext = prev -> cnext;
prev -> cnext = doing;
}
}
/*
* major sort is on propself + propchild,
* next is sort on ncalls + selfcalls.
*/
int
membercmp(nltype *this, nltype *that)
{
double thistime = this -> propself + this -> propchild;
double thattime = that -> propself + that -> propchild;
long thiscalls = this -> ncall + this -> selfcalls;
long thatcalls = that -> ncall + that -> selfcalls;
if ( thistime > thattime ) {
return GREATERTHAN;
}
if ( thistime < thattime ) {
return LESSTHAN;
}
if ( thiscalls > thatcalls ) {
return GREATERTHAN;
}
if ( thiscalls < thatcalls ) {
return LESSTHAN;
}
return EQUALTO;
}
/*
* compare two arcs to/from the same child/parent.
* - if one arc is a self arc, it's least.
* - if one arc is within a cycle, it's less than.
* - if both arcs are within a cycle, compare arc counts.
* - if neither arc is within a cycle, compare with
* arc_time + arc_childtime as major key
* arc count as minor key
*/
int
arccmp(arctype *thisp, arctype *thatp)
{
nltype *thisparentp = thisp -> arc_parentp;
nltype *thischildp = thisp -> arc_childp;
nltype *thatparentp = thatp -> arc_parentp;
nltype *thatchildp = thatp -> arc_childp;
double thistime;
double thattime;
# ifdef DEBUG
if ( debug & TIMEDEBUG ) {
printf( "[arccmp] " );
printname( thisparentp );
printf( " calls " );
printname ( thischildp );
printf( " %f + %f %ld/%ld\n" ,
thisp -> arc_time , thisp -> arc_childtime ,
thisp -> arc_count , thischildp -> ncall );
printf( "[arccmp] " );
printname( thatparentp );
printf( " calls " );
printname( thatchildp );
printf( " %f + %f %ld/%ld\n" ,
thatp -> arc_time , thatp -> arc_childtime ,
thatp -> arc_count , thatchildp -> ncall );
printf( "\n" );
}
# endif /* DEBUG */
if ( thisparentp == thischildp ) {
/* this is a self call */
return LESSTHAN;
}
if ( thatparentp == thatchildp ) {
/* that is a self call */
return GREATERTHAN;
}
if ( thisparentp -> cycleno != 0 && thischildp -> cycleno != 0 &&
thisparentp -> cycleno == thischildp -> cycleno ) {
/* this is a call within a cycle */
if ( thatparentp -> cycleno != 0 && thatchildp -> cycleno != 0 &&
thatparentp -> cycleno == thatchildp -> cycleno ) {
/* that is a call within the cycle, too */
if ( thisp -> arc_count < thatp -> arc_count ) {
return LESSTHAN;
}
if ( thisp -> arc_count > thatp -> arc_count ) {
return GREATERTHAN;
}
return EQUALTO;
} else {
/* that isn't a call within the cycle */
return LESSTHAN;
}
} else {
/* this isn't a call within a cycle */
if ( thatparentp -> cycleno != 0 && thatchildp -> cycleno != 0 &&
thatparentp -> cycleno == thatchildp -> cycleno ) {
/* that is a call within a cycle */
return GREATERTHAN;
} else {
/* neither is a call within a cycle */
thistime = thisp -> arc_time + thisp -> arc_childtime;
thattime = thatp -> arc_time + thatp -> arc_childtime;
if ( thistime < thattime )
return LESSTHAN;
if ( thistime > thattime )
return GREATERTHAN;
if ( thisp -> arc_count < thatp -> arc_count )
return LESSTHAN;
if ( thisp -> arc_count > thatp -> arc_count )
return GREATERTHAN;
return EQUALTO;
}
}
}
void
printblurb(const char *blurbname)
{
FILE *blurbfile;
int input;
blurbfile = fopen( blurbname , "r" );
if ( blurbfile == NULL ) {
warn( "%s" , blurbname );
return;
}
while ( ( input = getc( blurbfile ) ) != EOF ) {
putchar( input );
}
fclose( blurbfile );
}
int
namecmp(const void *v1, const void *v2)
{
const nltype **npp1 = (const nltype **)v1;
const nltype **npp2 = (const nltype **)v2;
return( strcmp( (*npp1) -> name , (*npp2) -> name ) );
}
void
printindex(void)
{
nltype **namesortnlp;
register nltype *nlp;
int idx, nnames, todo, i, j;
char peterbuffer[ BUFSIZ ];
/*
* Now, sort regular function name alphabetically
* to create an index.
*/
namesortnlp = (nltype **) calloc( nname + ncycle , sizeof(nltype *) );
if ( namesortnlp == (nltype **) 0 )
errx( 1 , "ran out of memory for sorting");
for ( idx = 0 , nnames = 0 ; idx < nname ; idx++ ) {
if ( zflag == 0 && nl[idx].ncall == 0 && nl[idx].time == 0 )
continue;
namesortnlp[nnames++] = &nl[idx];
}
qsort( namesortnlp , nnames , sizeof(nltype *) , namecmp );
for ( idx = 1 , todo = nnames ; idx <= ncycle ; idx++ ) {
namesortnlp[todo++] = &cyclenl[idx];
}
printf( "\f\nIndex by function name\n\n" );
idx = ( todo + 2 ) / 3;
for ( i = 0; i < idx ; i++ ) {
for ( j = i; j < todo ; j += idx ) {
nlp = namesortnlp[ j ];
if ( nlp -> printflag ) {
sprintf( peterbuffer , "[%d]" , nlp -> index );
} else {
sprintf( peterbuffer , "(%d)" , nlp -> index );
}
if ( j < nnames ) {
printf( "%6.6s %-19.19s" , peterbuffer , nlp -> name );
} else {
printf( "%6.6s " , peterbuffer );
sprintf( peterbuffer , "<cycle %d>" , nlp -> cycleno );
printf( "%-19.19s" , peterbuffer );
}
}
printf( "\n" );
}
free( namesortnlp );
}
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