114 lines
3.7 KiB
C
114 lines
3.7 KiB
C
/*
|
|
* Copyright (c) 1983, 1993, 1998
|
|
* 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.
|
|
*/
|
|
#include "gprof.h"
|
|
#include "search_list.h"
|
|
#include "source.h"
|
|
#include "symtab.h"
|
|
#include "cg_arcs.h"
|
|
#include "corefile.h"
|
|
#include "hist.h"
|
|
|
|
static Sym indirect_child;
|
|
|
|
void mips_find_call PARAMS ((Sym *, bfd_vma, bfd_vma));
|
|
|
|
void
|
|
mips_find_call (parent, p_lowpc, p_highpc)
|
|
Sym *parent;
|
|
bfd_vma p_lowpc;
|
|
bfd_vma p_highpc;
|
|
{
|
|
bfd_vma pc, dest_pc;
|
|
unsigned int op;
|
|
int offset;
|
|
Sym *child;
|
|
static bfd_boolean inited = FALSE;
|
|
|
|
if (!inited)
|
|
{
|
|
inited = TRUE;
|
|
sym_init (&indirect_child);
|
|
indirect_child.name = _("<indirect child>");
|
|
indirect_child.cg.prop.fract = 1.0;
|
|
indirect_child.cg.cyc.head = &indirect_child;
|
|
}
|
|
|
|
if (!core_text_space)
|
|
{
|
|
return;
|
|
}
|
|
if (p_lowpc < s_lowpc)
|
|
{
|
|
p_lowpc = s_lowpc;
|
|
}
|
|
if (p_highpc > s_highpc)
|
|
{
|
|
p_highpc = s_highpc;
|
|
}
|
|
DBG (CALLDEBUG, printf (_("[find_call] %s: 0x%lx to 0x%lx\n"),
|
|
parent->name, (unsigned long) p_lowpc,
|
|
(unsigned long) p_highpc));
|
|
for (pc = p_lowpc; pc < p_highpc; pc += 4)
|
|
{
|
|
op = bfd_get_32 (core_bfd, &((char *)core_text_space)[pc - s_lowpc]);
|
|
if ((op & 0xfc000000) == 0x0c000000)
|
|
{
|
|
/* This is a "jal" instruction. Check that the destination
|
|
is the address of a function. */
|
|
DBG (CALLDEBUG,
|
|
printf (_("[find_call] 0x%lx: jal"), (unsigned long) pc));
|
|
offset = (op & 0x03ffffff) << 2;
|
|
dest_pc = (pc & ~(bfd_vma) 0xfffffff) | offset;
|
|
if (dest_pc >= s_lowpc && dest_pc <= s_highpc)
|
|
{
|
|
child = sym_lookup (&symtab, dest_pc);
|
|
DBG (CALLDEBUG,
|
|
printf (" 0x%lx\t; name=%s, addr=0x%lx",
|
|
(unsigned long) dest_pc, child->name,
|
|
(unsigned long) child->addr));
|
|
if (child->addr == dest_pc)
|
|
{
|
|
DBG (CALLDEBUG, printf ("\n"));
|
|
/* a hit: */
|
|
arc_add (parent, child, (unsigned long) 0);
|
|
continue;
|
|
}
|
|
}
|
|
/* Something funny going on. */
|
|
DBG (CALLDEBUG, printf ("\tbut it's a botch\n"));
|
|
}
|
|
else if ((op & 0xfc00f83f) == 0x0000f809)
|
|
{
|
|
/* This is a "jalr" instruction (indirect call). */
|
|
DBG (CALLDEBUG,
|
|
printf (_("[find_call] 0x%lx: jalr\n"), (unsigned long) pc));
|
|
arc_add (parent, &indirect_child, (unsigned long) 0);
|
|
}
|
|
}
|
|
}
|