mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
113 lines
4.1 KiB
C
113 lines
4.1 KiB
C
/*
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This software was developed by the Computer Systems Engineering group
|
|
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
|
|
* contributed to Berkeley. Modified by Ralph Campbell for mips.
|
|
*
|
|
* 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.
|
|
*
|
|
* From: sparc.c 5.1 (Berkeley) 7/7/92
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)mips.c 8.1 (Berkeley) 6/6/93";
|
|
#endif /* not lint */
|
|
|
|
#include "gprof.h"
|
|
|
|
/*
|
|
* a namelist entry to be the child of indirect calls
|
|
*/
|
|
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 , /* times called by live arcs */
|
|
(long) 0 , /* how many calls to self */
|
|
(double) 1.0 , /* propagation fraction */
|
|
(double) 0.0 , /* self propagation time */
|
|
(double) 0.0 , /* child propagation time */
|
|
(short) 0 , /* print flag */
|
|
(short) 0 , /* flags */
|
|
(int) 0 , /* index in the graph list */
|
|
(int) 0 , /* graph call chain top-sort order */
|
|
(int) 0 , /* internal number of cycle on */
|
|
(int) 0 , /* number of live parent arcs */
|
|
(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;
|
|
{
|
|
register u_long pc;
|
|
nltype *childp;
|
|
unsigned long destpc;
|
|
register long op;
|
|
register int off;
|
|
|
|
if (textspace == 0)
|
|
return;
|
|
if (p_lowpc < s_lowpc)
|
|
p_lowpc = s_lowpc;
|
|
if (p_highpc > s_highpc)
|
|
p_highpc = s_highpc;
|
|
|
|
for (pc = p_lowpc; pc < p_highpc; pc += 4) {
|
|
off = pc - s_lowpc;
|
|
op = *(u_long *)&textspace[off];
|
|
if ((op & 0xfc000000) == 0x0c000000) {
|
|
/*
|
|
* a jal insn -- check that this
|
|
* is the address of a function.
|
|
*/
|
|
off = (op & 0x03ffffff) << 2;
|
|
destpc = (pc & 0xf0000000) | off;
|
|
if (destpc >= s_lowpc && destpc <= s_highpc) {
|
|
childp = nllookup(destpc);
|
|
if (childp != 0 && childp->value == destpc)
|
|
addarc(parentp, childp, 0L);
|
|
}
|
|
} else if ((op & 0xfc00f83f) == 0x0000f809)
|
|
/*
|
|
* A jalr -- an indirect call.
|
|
*/
|
|
addarc(parentp, &indirectchild, 0L);
|
|
}
|
|
}
|