mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-23 01:03:28 +08:00
132 lines
3.9 KiB
C
132 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 1983 Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms are permitted
|
|
* provided that: (1) source distributions retain this entire copyright
|
|
* notice and comment, and (2) distributions including binaries display
|
|
* the following acknowledgement: ``This product includes software
|
|
* developed by the University of California, Berkeley and its contributors''
|
|
* in the documentation or other materials provided with the distribution
|
|
* and in all advertising materials mentioning features or use of this
|
|
* software. 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)tahoe.c 1.5 (Berkeley) 6/1/90";
|
|
#endif /* not lint */
|
|
|
|
#include "gprof.h"
|
|
|
|
/*
|
|
* a namelist entry to be the child of indirect callf
|
|
*/
|
|
nltype indirectchild = {
|
|
"(*)" , /* the name */
|
|
(unsigned long) 0 , /* the pc entry point */
|
|
(unsigned long) 0 , /* entry point aligned to histogram */
|
|
(double) 0.0 , /* ticks in this routine */
|
|
(double) 0.0 , /* cumulative ticks in children */
|
|
(long) 0 , /* how many times called */
|
|
(long) 0 , /* how many calls to self */
|
|
(double) 1.0 , /* propagation fraction */
|
|
(double) 0.0 , /* self propagation time */
|
|
(double) 0.0 , /* child propagation time */
|
|
(bool) 0 , /* print flag */
|
|
(int) 0 , /* index in the graph list */
|
|
(int) 0 , /* graph call chain top-sort order */
|
|
(int) 0 , /* internal number of cycle on */
|
|
(struct nl *) &indirectchild , /* pointer to head of cycle */
|
|
(struct nl *) 0 , /* pointer to next member of cycle */
|
|
(arctype *) 0 , /* list of caller arcs */
|
|
(arctype *) 0 /* list of callee arcs */
|
|
};
|
|
|
|
findcall( parentp , p_lowpc , p_highpc )
|
|
nltype *parentp;
|
|
unsigned long p_lowpc;
|
|
unsigned long p_highpc;
|
|
{
|
|
unsigned char *instructp;
|
|
long length;
|
|
nltype *childp;
|
|
unsigned long destpc;
|
|
|
|
if ( textspace == 0 ) {
|
|
return;
|
|
}
|
|
if ( p_lowpc < s_lowpc ) {
|
|
p_lowpc = s_lowpc;
|
|
}
|
|
if ( p_highpc > s_highpc ) {
|
|
p_highpc = s_highpc;
|
|
}
|
|
# ifdef DEBUG
|
|
if ( debug & CALLDEBUG ) {
|
|
printf( "[findcall] %s: 0x%x to 0x%x\n" ,
|
|
parentp -> name , p_lowpc , p_highpc );
|
|
}
|
|
# endif DEBUG
|
|
for ( instructp = textspace + p_lowpc ;
|
|
instructp < textspace + p_highpc ;
|
|
instructp += length ) {
|
|
length = 1;
|
|
if ( (*instructp & CALL) ) {
|
|
# ifdef DEBUG
|
|
if ( debug & CALLDEBUG ) {
|
|
printf( "[findcall]\t0x%x:callf" , instructp - textspace );
|
|
}
|
|
# endif DEBUG
|
|
length = 4; /* constant length in a SPARC */
|
|
/*
|
|
* regular pc relative addressing
|
|
* check that this is the address of
|
|
* a function.
|
|
*/
|
|
destpc = ( (unsigned long)instructp + (*(long *)instructp & ~CALL) )
|
|
- (unsigned long) textspace;
|
|
if ( destpc >= s_lowpc && destpc <= s_highpc ) {
|
|
childp = nllookup( destpc );
|
|
# ifdef DEBUG
|
|
if ( debug & CALLDEBUG ) {
|
|
printf( "[findcall]\tdestpc 0x%x" , destpc );
|
|
printf( " childp->name %s" , childp -> name );
|
|
printf( " childp->value 0x%x\n" ,
|
|
childp -> value );
|
|
}
|
|
# endif DEBUG
|
|
if ( childp -> value == destpc ) {
|
|
/*
|
|
* a hit
|
|
*/
|
|
addarc( parentp , childp , (long) 0 );
|
|
length += 4; /* constant lengths */
|
|
continue;
|
|
}
|
|
goto botched;
|
|
}
|
|
/*
|
|
* else:
|
|
* it looked like a callf,
|
|
* but it wasn't to anywhere.
|
|
*/
|
|
botched:
|
|
/*
|
|
* something funny going on.
|
|
*/
|
|
# ifdef DEBUG
|
|
if ( debug & CALLDEBUG ) {
|
|
printf( "[findcall]\tbut it's a botch\n" );
|
|
}
|
|
# endif DEBUG
|
|
length = 1;
|
|
continue;
|
|
}
|
|
}
|
|
}
|