[deliverable/binutils-gdb.git] / gprof / sparc.c

/*
 * Copyright (c) 1983 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 "cg_arcs.h"
#include "corefile.h"
#include "hist.h"
#include "symtab.h"

    /*
     *        opcode of the `callf' instruction
     */
#define	CALL	(0xc0000000)

void sparc_find_call PARAMS ((Sym *, bfd_vma, bfd_vma));

void
sparc_find_call (parent, p_lowpc, p_highpc)
     Sym *parent;
     bfd_vma p_lowpc;
     bfd_vma p_highpc;
{
  bfd_vma dest_pc, delta;
  unsigned int *instr;
  Sym *child;

  delta = (bfd_vma) core_text_space - core_text_sect->vma;

  if (core_text_space == 0)
    {
      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 (instr = (unsigned int *) (((p_lowpc + delta) + 3) &~ 3);
       instr < (unsigned int *) (p_highpc + delta);
       ++instr)
    {
      if ((*instr & CALL))
	{
	  DBG (CALLDEBUG,
	       printf ("[find_call] 0x%lx: callf",
		       (unsigned long) instr - (unsigned long) delta));
	  /*
	   * Regular pc relative addressing check that this is the
	   * address of a function.
	   */
	  dest_pc = ((bfd_vma) (instr + (*instr & ~CALL))) - delta;
	  if (dest_pc >= s_lowpc && dest_pc <= s_highpc)
	    {
	      child = sym_lookup (&symtab, dest_pc);
	      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"));
	}
    }
}
Commit	Line	Data
252b5132 RH	1	/*
	2	* Copyright (c) 1983 Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms are permitted
	6	* provided that: (1) source distributions retain this entire copyright
	7	* notice and comment, and (2) distributions including binaries display
	8	* the following acknowledgement: ``This product includes software
	9	* developed by the University of California, Berkeley and its contributors''
	10	* in the documentation or other materials provided with the distribution
	11	* and in all advertising materials mentioning features or use of this
	12	* software. Neither the name of the University nor the names of its
	13	* contributors may be used to endorse or promote products derived
	14	* from this software without specific prior written permission.
	15	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
	16	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
	17	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
	18	*/
	19	#include "gprof.h"
	20	#include "cg_arcs.h"
	21	#include "corefile.h"
	22	#include "hist.h"
	23	#include "symtab.h"
	24
	25	/*
	26	* opcode of the `callf' instruction
	27	*/
	28	#define CALL (0xc0000000)
	29
5789ecea AM	30	void sparc_find_call PARAMS ((Sym *, bfd_vma, bfd_vma));
5789ecea AM	31
252b5132 RH	32	void
	33	sparc_find_call (parent, p_lowpc, p_highpc)
	34	Sym *parent;
	35	bfd_vma p_lowpc;
	36	bfd_vma p_highpc;
	37	{
	38	bfd_vma dest_pc, delta;
	39	unsigned int *instr;
	40	Sym *child;
	41
	42	delta = (bfd_vma) core_text_space - core_text_sect->vma;
	43
	44	if (core_text_space == 0)
	45	{
	46	return;
	47	}
	48	if (p_lowpc < s_lowpc)
	49	{
	50	p_lowpc = s_lowpc;
	51	}
	52	if (p_highpc > s_highpc)
	53	{
	54	p_highpc = s_highpc;
	55	}
	56	DBG (CALLDEBUG, printf ("[find_call] %s: 0x%lx to 0x%lx\n",
fdcf7d43 ILT	57	parent->name, (unsigned long) p_lowpc,
fdcf7d43 ILT	58	(unsigned long) p_highpc));
252b5132 RH	59	for (instr = (unsigned int *) (((p_lowpc + delta) + 3) &~ 3);
	60	instr < (unsigned int *) (p_highpc + delta);
	61	++instr)
	62	{
	63	if ((*instr & CALL))
	64	{
	65	DBG (CALLDEBUG,
fdcf7d43	66	printf ("[find_call] 0x%lx: callf",
55c80890	67	(unsigned long) instr - (unsigned long) delta));
252b5132 RH	68	/*
	69	* Regular pc relative addressing check that this is the
	70	* address of a function.
	71	*/
	72	dest_pc = ((bfd_vma) (instr + (*instr & ~CALL))) - delta;
	73	if (dest_pc >= s_lowpc && dest_pc <= s_highpc)
	74	{
	75	child = sym_lookup (&symtab, dest_pc);
	76	DBG (CALLDEBUG,
	77	printf ("\tdest_pc=0x%lx, (name=%s, addr=0x%lx)\n",
fdcf7d43 ILT	78	(unsigned long) dest_pc, child->name,
fdcf7d43 ILT	79	(unsigned long) child->addr));
252b5132 RH	80	if (child->addr == dest_pc)
	81	{
	82	/* a hit: */
	83	arc_add (parent, child, (unsigned long) 0);
	84	continue;
	85	}
	86	}
	87	/*
	88	* Something funny going on.
	89	*/
	90	DBG (CALLDEBUG, printf ("\tbut it's a botch\n"));
	91	}
	92	}
	93	}