1 /* 2 * Copyright (c) 1983, 1993, 2001 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 #include "gprof.h" 30 #include "cg_arcs.h" 31 #include "corefile.h" 32 #include "hist.h" 33 #include "symtab.h" 34 35 /* 36 * opcode of the `callf' instruction 37 */ 38 #define CALL (0xc0000000) 39 40 void 41 sparc_find_call (parent, p_lowpc, p_highpc) 42 Sym *parent; 43 bfd_vma p_lowpc; 44 bfd_vma p_highpc; 45 { 46 bfd_vma dest_pc, delta; 47 unsigned int *instr; 48 Sym *child; 49 50 delta = (bfd_vma) core_text_space - core_text_sect->vma; 51 52 if (core_text_space == 0) 53 { 54 return; 55 } 56 if (p_lowpc < s_lowpc) 57 { 58 p_lowpc = s_lowpc; 59 } 60 if (p_highpc > s_highpc) 61 { 62 p_highpc = s_highpc; 63 } 64 DBG (CALLDEBUG, printf ("[find_call] %s: 0x%lx to 0x%lx\n", 65 parent->name, (unsigned long) p_lowpc, 66 (unsigned long) p_highpc)); 67 for (instr = (unsigned int *) (((p_lowpc + delta) + 3) &~ 3); 68 instr < (unsigned int *) (p_highpc + delta); 69 ++instr) 70 { 71 if ((*instr & CALL)) 72 { 73 DBG (CALLDEBUG, 74 printf ("[find_call] 0x%lx: callf", 75 (unsigned long) instr - delta)); 76 /* 77 * Regular pc relative addressing check that this is the 78 * address of a function. 79 */ 80 dest_pc = ((bfd_vma) (instr + (*instr & ~CALL))) - delta; 81 if (dest_pc >= s_lowpc && dest_pc <= s_highpc) 82 { 83 child = sym_lookup (&symtab, dest_pc); 84 DBG (CALLDEBUG, 85 printf ("\tdest_pc=0x%lx, (name=%s, addr=0x%lx)\n", 86 (unsigned long) dest_pc, child->name, 87 (unsigned long) child->addr)); 88 if (child->addr == dest_pc) 89 { 90 /* a hit: */ 91 arc_add (parent, child, (unsigned long) 0); 92 continue; 93 } 94 } 95 /* 96 * Something funny going on. 97 */ 98 DBG (CALLDEBUG, printf ("\tbut it's a botch\n")); 99 } 100 } 101 } 102