mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-24 07:31:32 +00:00
92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
|
/*
|
||
|
|
* 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. 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"
|
||
|
|
|
||
|
|
/*
|
||
|
|
* opcode of the `callf' instruction
|
||
|
|
*/
|
||
|
|
#define CALL (0xc0000000)
|
||
|
|
|
||
|
|
void sparc_find_call (Sym *, bfd_vma, bfd_vma);
|
||
|
|
|
||
|
|
void
|
||
|
|
sparc_find_call (Sym *parent, bfd_vma p_lowpc, bfd_vma p_highpc)
|
||
|
|
{
|
||
|
|
bfd_vma pc, dest_pc;
|
||
|
|
unsigned int insn;
|
||
|
|
Sym *child;
|
||
|
|
|
||
|
|
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 + 3) & ~(bfd_vma) 3; pc < p_highpc; pc += 4)
|
||
|
|
{
|
||
|
|
insn = bfd_get_32 (core_bfd, ((unsigned char *) core_text_space
|
||
|
|
+ pc - core_text_sect->vma));
|
||
|
|
if (insn & CALL)
|
||
|
|
{
|
||
|
|
DBG (CALLDEBUG,
|
||
|
|
printf ("[find_call] 0x%lx: callf", (unsigned long) pc));
|
||
|
|
/*
|
||
|
|
* Regular pc relative addressing check that this is the
|
||
|
|
* address of a function.
|
||
|
|
*/
|
||
|
|
dest_pc = pc + (((bfd_signed_vma) (insn & 0x3fffffff)
|
||
|
|
^ 0x20000000) - 0x20000000);
|
||
|
|
if (hist_check_address (dest_pc))
|
||
|
|
{
|
||
|
|
child = sym_lookup (&symtab, dest_pc);
|
||
|
|
if (child)
|
||
|
|
{
|
||
|
|
DBG (CALLDEBUG,
|
||
|
|
printf ("\tdest_pc=0x%lx, (name=%s, addr=0x%lx)\n",
|
||
|
|
(unsigned long) dest_pc, child->name,
|
||
|
|
(unsigned long) child->addr));
|
||
|
|
if (child->addr == dest_pc)
|
||
|
|
{
|
||
|
|
/* a hit: */
|
||
|
|
arc_add (parent, child, (unsigned long) 0);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/*
|
||
|
|
* Something funny going on.
|
||
|
|
*/
|
||
|
|
DBG (CALLDEBUG, printf ("\tbut it's a botch\n"));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|