| /* |
| * Copyright (c) 1983, 1998 Regents of the University of California. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms are permitted |
| * provided that: (1) source distributions retain this entire copyright |
| * notice and comment, and (2) distributions including binaries display |
| * the following acknowledgement: ``This product includes software |
| * developed by the University of California, Berkeley and its contributors'' |
| * in the documentation or other materials provided with the distribution |
| * and in all advertising materials mentioning features or use of this |
| * software. 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| */ |
| #include "gprof.h" |
| #include "search_list.h" |
| #include "source.h" |
| #include "symtab.h" |
| #include "cg_arcs.h" |
| #include "corefile.h" |
| #include "hist.h" |
| |
| static Sym indirect_child; |
| |
| void mips_find_call PARAMS ((Sym *, bfd_vma, bfd_vma)); |
| |
| void |
| mips_find_call (parent, p_lowpc, p_highpc) |
| Sym *parent; |
| bfd_vma p_lowpc; |
| bfd_vma p_highpc; |
| { |
| bfd_vma pc, dest_pc; |
| unsigned int op; |
| int offset; |
| Sym *child; |
| static boolean inited = false; |
| |
| if (!inited) |
| { |
| inited = true; |
| sym_init (&indirect_child); |
| indirect_child.name = _("<indirect child>"); |
| indirect_child.cg.prop.fract = 1.0; |
| indirect_child.cg.cyc.head = &indirect_child; |
| } |
| |
| if (!core_text_space) |
| { |
| return; |
| } |
| if (p_lowpc < s_lowpc) |
| { |
| p_lowpc = s_lowpc; |
| } |
| if (p_highpc > s_highpc) |
| { |
| p_highpc = s_highpc; |
| } |
| 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; pc < p_highpc; pc += 4) |
| { |
| op = bfd_get_32 (core_bfd, &((char *)core_text_space)[pc - s_lowpc]); |
| if ((op & 0xfc000000) == 0x0c000000) |
| { |
| /* This is a "jal" instruction. Check that the destination |
| is the address of a function. */ |
| DBG (CALLDEBUG, |
| printf (_("[find_call] 0x%lx: jal"), (unsigned long) pc)); |
| offset = (op & 0x03ffffff) << 2; |
| dest_pc = (pc & ~(bfd_vma) 0xfffffff) | offset; |
| if (dest_pc >= s_lowpc && dest_pc <= s_highpc) |
| { |
| child = sym_lookup (&symtab, dest_pc); |
| DBG (CALLDEBUG, |
| printf (" 0x%lx\t; name=%s, addr=0x%lx", |
| (unsigned long) dest_pc, child->name, |
| (unsigned long) child->addr)); |
| if (child->addr == dest_pc) |
| { |
| DBG (CALLDEBUG, printf ("\n")); |
| /* a hit: */ |
| arc_add (parent, child, (unsigned long) 0); |
| continue; |
| } |
| } |
| /* Something funny going on. */ |
| DBG (CALLDEBUG, printf ("\tbut it's a botch\n")); |
| } |
| else if ((op & 0xfc00f83f) == 0x0000f809) |
| { |
| /* This is a "jalr" instruction (indirect call). */ |
| DBG (CALLDEBUG, |
| printf (_("[find_call] 0x%lx: jalr\n"), (unsigned long) pc)); |
| arc_add (parent, &indirect_child, (unsigned long) 0); |
| } |
| } |
| } |