108 lines
3.5 KiB
C
108 lines
3.5 KiB
C
/* $NetBSD: mips.c,v 1.2 1999/02/09 18:19:32 tv Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley. Modified by Ralph Campbell for mips.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* From: sparc.c 5.1 (Berkeley) 7/7/92
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)mips.c 8.1 (Berkeley) 6/6/93";
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#else
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__RCSID("$NetBSD: mips.c,v 1.2 1999/02/09 18:19:32 tv Exp $");
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#endif
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#endif /* not lint */
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#include "gprof.h"
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#include "cg_arcs.h"
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#include "core.h"
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#include "hist.h"
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#include "symtab.h"
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static Sym indirectchild;
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void
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mips_find_call(parentp, p_lowpc, p_highpc)
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Sym *parentp;
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bfd_vma p_lowpc;
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bfd_vma p_highpc;
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{
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bfd_vma pc;
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Sym *childp;
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bfd_vma destpc;
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unsigned int op;
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int off;
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static bool inited = FALSE;
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if (!inited) {
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inited = TRUE;
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sym_init (&indirectchild);
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indirectchild.cg.prop.fract = 1.0;
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indirectchild.cg.cyc.head = &indirectchild;
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}
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if (core_text_space == 0)
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return;
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if (p_lowpc < s_lowpc)
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p_lowpc = s_lowpc;
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if (p_highpc > s_highpc)
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p_highpc = s_highpc;
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for (pc = p_lowpc; pc < p_highpc; pc += 4) {
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off = pc - s_lowpc;
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op = *(unsigned int *)&(((const char *)core_text_space)[off]);
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if ((op & 0xfc000000) == 0x0c000000) {
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/*
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* a jal insn -- check that this
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* is the address of a function.
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*/
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off = (op & 0x03ffffff) << 2;
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destpc = (pc & 0xf0000000) | off;
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if (destpc >= s_lowpc && destpc <= s_highpc) {
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childp = sym_lookup(&symtab, destpc);
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if (childp != 0 && childp->addr == destpc)
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arc_add(parentp, childp, 0L);
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}
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} else if ((op & 0xfc00f83f) == 0x0000f809)
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/*
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* A jalr -- an indirect call.
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*/
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arc_add(parentp, &indirectchild, 0L);
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}
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}
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