1991-07-18 20:19:17 +00:00
|
|
|
/*
|
|
|
|
* 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.
|
|
|
|
*/
|
1995-02-07 22:34:18 +00:00
|
|
|
#include "gprof.h"
|
|
|
|
#include "cg_arcs.h"
|
|
|
|
#include "core.h"
|
|
|
|
#include "hist.h"
|
|
|
|
#include "symtab.h"
|
|
|
|
#include "vax.h"
|
1991-07-18 20:19:17 +00:00
|
|
|
|
1995-02-07 22:34:18 +00:00
|
|
|
/*
|
|
|
|
* A symbol to be the child of indirect calls:
|
|
|
|
*/
|
|
|
|
Sym indirectchild;
|
1991-07-18 20:19:17 +00:00
|
|
|
|
|
|
|
|
1995-02-07 22:34:18 +00:00
|
|
|
static operandenum
|
1995-02-08 02:35:44 +00:00
|
|
|
operandmode (modep)
|
|
|
|
struct modebyte *modep;
|
1991-07-18 20:19:17 +00:00
|
|
|
{
|
1995-02-08 02:35:44 +00:00
|
|
|
long usesreg = modep->regfield;
|
|
|
|
|
|
|
|
switch (modep->modefield)
|
|
|
|
{
|
|
|
|
case 0:
|
|
|
|
case 1:
|
|
|
|
case 2:
|
|
|
|
case 3:
|
|
|
|
return literal;
|
|
|
|
case 4:
|
|
|
|
return indexed;
|
|
|
|
case 5:
|
|
|
|
return reg;
|
|
|
|
case 6:
|
|
|
|
return regdef;
|
|
|
|
case 7:
|
|
|
|
return autodec;
|
|
|
|
case 8:
|
|
|
|
return usesreg != PC ? autoinc : immediate;
|
|
|
|
case 9:
|
|
|
|
return usesreg != PC ? autoincdef : absolute;
|
|
|
|
case 10:
|
|
|
|
return usesreg != PC ? bytedisp : byterel;
|
|
|
|
case 11:
|
|
|
|
return usesreg != PC ? bytedispdef : bytereldef;
|
|
|
|
case 12:
|
|
|
|
return usesreg != PC ? worddisp : wordrel;
|
|
|
|
case 13:
|
|
|
|
return usesreg != PC ? worddispdef : wordreldef;
|
|
|
|
case 14:
|
|
|
|
return usesreg != PC ? longdisp : longrel;
|
|
|
|
case 15:
|
|
|
|
return usesreg != PC ? longdispdef : longreldef;
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
1995-02-08 02:35:44 +00:00
|
|
|
/* NOTREACHED */
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
|
|
|
|
1995-02-07 22:34:18 +00:00
|
|
|
static char *
|
1995-02-08 02:35:44 +00:00
|
|
|
operandname (mode)
|
|
|
|
operandenum mode;
|
1991-07-18 20:19:17 +00:00
|
|
|
{
|
1995-02-08 02:35:44 +00:00
|
|
|
|
|
|
|
switch (mode)
|
|
|
|
{
|
|
|
|
case literal:
|
|
|
|
return "literal";
|
|
|
|
case indexed:
|
|
|
|
return "indexed";
|
|
|
|
case reg:
|
|
|
|
return "register";
|
|
|
|
case regdef:
|
|
|
|
return "register deferred";
|
|
|
|
case autodec:
|
|
|
|
return "autodecrement";
|
|
|
|
case autoinc:
|
|
|
|
return "autoincrement";
|
|
|
|
case autoincdef:
|
|
|
|
return "autoincrement deferred";
|
|
|
|
case bytedisp:
|
|
|
|
return "byte displacement";
|
|
|
|
case bytedispdef:
|
|
|
|
return "byte displacement deferred";
|
|
|
|
case byterel:
|
|
|
|
return "byte relative";
|
|
|
|
case bytereldef:
|
|
|
|
return "byte relative deferred";
|
|
|
|
case worddisp:
|
|
|
|
return "word displacement";
|
|
|
|
case worddispdef:
|
|
|
|
return "word displacement deferred";
|
|
|
|
case wordrel:
|
|
|
|
return "word relative";
|
|
|
|
case wordreldef:
|
|
|
|
return "word relative deferred";
|
|
|
|
case immediate:
|
|
|
|
return "immediate";
|
|
|
|
case absolute:
|
|
|
|
return "absolute";
|
|
|
|
case longdisp:
|
|
|
|
return "long displacement";
|
|
|
|
case longdispdef:
|
|
|
|
return "long displacement deferred";
|
|
|
|
case longrel:
|
|
|
|
return "long relative";
|
|
|
|
case longreldef:
|
|
|
|
return "long relative deferred";
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
1995-02-08 02:35:44 +00:00
|
|
|
/* NOTREACHED */
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
|
|
|
|
1995-02-07 22:34:18 +00:00
|
|
|
static long
|
1995-02-08 02:35:44 +00:00
|
|
|
operandlength (modep)
|
|
|
|
struct modebyte *modep;
|
1991-07-18 20:19:17 +00:00
|
|
|
{
|
1995-02-08 02:35:44 +00:00
|
|
|
|
|
|
|
switch (operandmode (modep))
|
|
|
|
{
|
|
|
|
case literal:
|
|
|
|
case reg:
|
|
|
|
case regdef:
|
|
|
|
case autodec:
|
|
|
|
case autoinc:
|
|
|
|
case autoincdef:
|
|
|
|
return 1;
|
|
|
|
case bytedisp:
|
|
|
|
case bytedispdef:
|
|
|
|
case byterel:
|
|
|
|
case bytereldef:
|
|
|
|
return 2;
|
|
|
|
case worddisp:
|
|
|
|
case worddispdef:
|
|
|
|
case wordrel:
|
|
|
|
case wordreldef:
|
|
|
|
return 3;
|
|
|
|
case immediate:
|
|
|
|
case absolute:
|
|
|
|
case longdisp:
|
|
|
|
case longdispdef:
|
|
|
|
case longrel:
|
|
|
|
case longreldef:
|
|
|
|
return 5;
|
|
|
|
case indexed:
|
|
|
|
return 1 + operandlength ((struct modebyte *) ((char *) modep) + 1);
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
1995-02-08 02:35:44 +00:00
|
|
|
/* NOTREACHED */
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
|
|
|
|
1995-02-07 22:34:18 +00:00
|
|
|
static bfd_vma
|
1995-02-08 02:35:44 +00:00
|
|
|
reladdr (modep)
|
|
|
|
struct modebyte *modep;
|
1991-07-18 20:19:17 +00:00
|
|
|
{
|
1995-02-08 02:35:44 +00:00
|
|
|
operandenum mode = operandmode (modep);
|
|
|
|
char *cp;
|
|
|
|
short *sp;
|
|
|
|
long *lp;
|
1991-07-18 20:19:17 +00:00
|
|
|
|
1995-02-08 02:35:44 +00:00
|
|
|
cp = (char *) modep;
|
|
|
|
++cp; /* skip over the mode */
|
|
|
|
switch (mode)
|
|
|
|
{
|
|
|
|
default:
|
|
|
|
fprintf (stderr, "[reladdr] not relative address\n");
|
|
|
|
return (bfd_vma) modep;
|
|
|
|
case byterel:
|
|
|
|
return (bfd_vma) (cp + sizeof *cp + *cp);
|
|
|
|
case wordrel:
|
|
|
|
sp = (short *) cp;
|
|
|
|
return (bfd_vma) (cp + sizeof *sp + *sp);
|
|
|
|
case longrel:
|
|
|
|
lp = (long *) cp;
|
|
|
|
return (bfd_vma) (cp + sizeof *lp + *lp);
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
1995-02-07 22:34:18 +00:00
|
|
|
|
|
|
|
void
|
1995-02-08 02:35:44 +00:00
|
|
|
find_call (parent, p_lowpc, p_highpc)
|
1995-02-07 22:34:18 +00:00
|
|
|
Sym *parent;
|
|
|
|
bfd_vma p_lowpc;
|
|
|
|
bfd_vma p_highpc;
|
1991-07-18 20:19:17 +00:00
|
|
|
{
|
1995-02-08 02:35:44 +00:00
|
|
|
unsigned char *instructp;
|
|
|
|
long length;
|
|
|
|
Sym *child;
|
|
|
|
operandenum mode;
|
|
|
|
operandenum firstmode;
|
|
|
|
bfd_vma destpc;
|
|
|
|
static bool inited = FALSE;
|
1991-07-18 20:19:17 +00:00
|
|
|
|
1995-02-08 02:35:44 +00:00
|
|
|
if (!inited)
|
|
|
|
{
|
|
|
|
inited = TRUE;
|
|
|
|
sym_init (&indirectchild);
|
|
|
|
indirectchild.cg.prop.fract = 1.0;
|
|
|
|
indirectchild.cg.cyc.head = &indirectchild;
|
1995-03-14 02:58:16 +00:00
|
|
|
}
|
1995-02-07 22:34:18 +00:00
|
|
|
|
1995-02-08 02:35:44 +00:00
|
|
|
if (core_text_space == 0)
|
|
|
|
{
|
|
|
|
return;
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
1995-02-08 02:35:44 +00:00
|
|
|
if (p_lowpc < s_lowpc)
|
|
|
|
{
|
|
|
|
p_lowpc = s_lowpc;
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
1995-02-08 02:35:44 +00:00
|
|
|
if (p_highpc > s_highpc)
|
|
|
|
{
|
|
|
|
p_highpc = s_highpc;
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
1995-02-08 02:35:44 +00:00
|
|
|
DBG (CALLDEBUG, printf ("[findcall] %s: 0x%lx to 0x%lx\n",
|
1995-02-07 22:34:18 +00:00
|
|
|
parent->name, p_lowpc, p_highpc));
|
1995-02-08 02:35:44 +00:00
|
|
|
for (instructp = (unsigned char *) core_text_space + p_lowpc;
|
|
|
|
instructp < (unsigned char *) core_text_space + p_highpc;
|
|
|
|
instructp += length)
|
|
|
|
{
|
|
|
|
length = 1;
|
|
|
|
if (*instructp == CALLS)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* maybe a calls, better check it out.
|
|
|
|
* skip the count of the number of arguments.
|
|
|
|
*/
|
|
|
|
DBG (CALLDEBUG,
|
|
|
|
printf ("[findcall]\t0x%x:calls",
|
|
|
|
instructp - (unsigned char *) core_text_space));
|
|
|
|
firstmode = operandmode ((struct modebyte *) (instructp + length));
|
|
|
|
switch (firstmode)
|
|
|
|
{
|
|
|
|
case literal:
|
|
|
|
case immediate:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
goto botched;
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
1995-02-08 02:35:44 +00:00
|
|
|
length += operandlength ((struct modebyte *) (instructp + length));
|
|
|
|
mode = operandmode ((struct modebyte *) (instructp + length));
|
|
|
|
DBG (CALLDEBUG,
|
|
|
|
printf ("\tfirst operand is %s", operandname (firstmode));
|
|
|
|
printf ("\tsecond operand is %s\n", operandname (mode)));
|
|
|
|
switch (mode)
|
|
|
|
{
|
|
|
|
case regdef:
|
|
|
|
case bytedispdef:
|
|
|
|
case worddispdef:
|
|
|
|
case longdispdef:
|
|
|
|
case bytereldef:
|
|
|
|
case wordreldef:
|
|
|
|
case longreldef:
|
|
|
|
/*
|
|
|
|
* indirect call: call through pointer
|
|
|
|
* either *d(r) as a parameter or local
|
|
|
|
* (r) as a return value
|
|
|
|
* *f as a global pointer
|
|
|
|
* [are there others that we miss?,
|
|
|
|
* e.g. arrays of pointers to functions???]
|
|
|
|
*/
|
|
|
|
arc_add (parent, &indirectchild, (long) 0);
|
|
|
|
length += operandlength (
|
|
|
|
(struct modebyte *) (instructp + length));
|
|
|
|
continue;
|
|
|
|
case byterel:
|
|
|
|
case wordrel:
|
|
|
|
case longrel:
|
|
|
|
/*
|
|
|
|
* regular pc relative addressing
|
|
|
|
* check that this is the address of
|
|
|
|
* a function.
|
|
|
|
*/
|
|
|
|
destpc = reladdr ((struct modebyte *) (instructp + length))
|
|
|
|
- (bfd_vma) core_text_space;
|
|
|
|
if (destpc >= s_lowpc && destpc <= s_highpc)
|
|
|
|
{
|
|
|
|
child = sym_lookup (&symtab, destpc);
|
|
|
|
DBG (CALLDEBUG,
|
|
|
|
printf ("[findcall]\tdestpc 0x%lx", destpc);
|
|
|
|
printf (" child->name %s", child->name);
|
|
|
|
printf (" child->addr 0x%lx\n", child->addr);
|
|
|
|
);
|
|
|
|
if (child->addr == destpc)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* a hit
|
|
|
|
*/
|
|
|
|
arc_add (parent, child, (long) 0);
|
|
|
|
length += operandlength ((struct modebyte *)
|
|
|
|
(instructp + length));
|
|
|
|
continue;
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
1995-02-08 02:35:44 +00:00
|
|
|
goto botched;
|
|
|
|
}
|
|
|
|
/*
|
|
|
|
* else:
|
|
|
|
* it looked like a calls,
|
|
|
|
* but it wasn't to anywhere.
|
|
|
|
*/
|
|
|
|
goto botched;
|
|
|
|
default:
|
|
|
|
botched:
|
|
|
|
/*
|
|
|
|
* something funny going on.
|
|
|
|
*/
|
|
|
|
DBG (CALLDEBUG, printf ("[findcall]\tbut it's a botch\n"));
|
|
|
|
length = 1;
|
|
|
|
continue;
|
1991-07-18 20:19:17 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|