ec0806ec81
* Makefile.am (sources): Add mips.c. (mips.o): New rule. * Makefile.in: Regenerate. * corefile.c: Update copyright years. (find_call): Call mips_find_call for bfd_arch_mips.
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/*
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* Copyright (c) 1983, 1998 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that: (1) source distributions retain this entire copyright
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* notice and comment, and (2) distributions including binaries display
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* the following acknowledgement: ``This product includes software
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* developed by the University of California, Berkeley and its contributors''
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* in the documentation or other materials provided with the distribution
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* and in all advertising materials mentioning features or use of this
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* software. Neither the name of the University nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#include "gprof.h"
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#include "cg_arcs.h"
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#include "corefile.h"
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#include "hist.h"
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#include "symtab.h"
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static Sym indirect_child;
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void mips_find_call PARAMS ((Sym *, bfd_vma, bfd_vma));
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void
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mips_find_call (parent, p_lowpc, p_highpc)
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Sym *parent;
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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, dest_pc;
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unsigned int op;
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int offset;
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Sym *child;
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static bool inited = FALSE;
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if (!inited)
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{
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inited = TRUE;
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sym_init (&indirect_child);
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indirect_child.name = _("<indirect child>");
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indirect_child.cg.prop.fract = 1.0;
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indirect_child.cg.cyc.head = &indirect_child;
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}
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if (!core_text_space)
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{
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return;
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}
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if (p_lowpc < s_lowpc)
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{
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p_lowpc = s_lowpc;
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}
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if (p_highpc > s_highpc)
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{
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p_highpc = s_highpc;
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}
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DBG (CALLDEBUG, printf (_("[find_call] %s: 0x%lx to 0x%lx\n"),
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parent->name, (unsigned long) p_lowpc,
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(unsigned long) p_highpc));
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for (pc = p_lowpc; pc < p_highpc; pc += 4)
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{
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op = bfd_get_32 (core_bfd, &((char *)core_text_space)[pc - s_lowpc]);
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if ((op & 0xfc000000) == 0x0c000000)
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{
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/* This is a "jal" instruction. Check that the destination
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is the address of a function. */
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DBG (CALLDEBUG,
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printf (_("[find_call] 0x%lx: jal"), (unsigned long) pc));
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offset = (op & 0x03ffffff) << 2;
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dest_pc = (pc & ~0xfffffff) | offset;
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if (dest_pc >= s_lowpc && dest_pc <= s_highpc)
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{
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child = sym_lookup (&symtab, dest_pc);
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DBG (CALLDEBUG,
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printf (" 0x%lx\t; name=%s, addr=0x%lx",
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(unsigned long) dest_pc, child->name,
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(unsigned long) child->addr));
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if (child->addr == dest_pc)
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{
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DBG (CALLDEBUG, printf ("\n"));
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/* a hit: */
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arc_add (parent, child, (unsigned long) 0);
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continue;
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}
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}
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/* Something funny going on. */
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DBG (CALLDEBUG, printf ("\tbut it's a botch\n"));
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}
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else if ((op & 0xfc00f83f) == 0x0000f809)
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{
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/* This is a "jalr" instruction (indirect call). */
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DBG (CALLDEBUG,
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printf (_("[find_call] 0x%lx: jalr\n"), (unsigned long) pc));
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arc_add (parent, &indirect_child, (unsigned long) 0);
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}
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}
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}
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