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- /*
- * 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"));
- }
- }
- }
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