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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [gprof/] [sparc.c] - Rev 144
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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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