/*
- * Copyright (c) 1983 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1983, 1993, 2001
+ * The 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.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
*/
#include "gprof.h"
+#include "search_list.h"
+#include "source.h"
+#include "symtab.h"
#include "cg_arcs.h"
-#include "core.h"
+#include "corefile.h"
#include "hist.h"
-#include "symtab.h"
-#include "vax.h"
+
+ /*
+ * opcode of the `calls' instruction
+ */
+#define CALLS 0xfb
+
+ /*
+ * register for pc relative addressing
+ */
+#define PC 0xf
+
+enum opermodes
+ {
+ literal, indexed, reg, regdef, autodec, autoinc, autoincdef,
+ bytedisp, bytedispdef, worddisp, worddispdef, longdisp, longdispdef,
+ immediate, absolute, byterel, bytereldef, wordrel, wordreldef,
+ longrel, longreldef
+ };
+typedef enum opermodes operandenum;
+
+/* *INDENT-OFF* */
+/* Here to document only. We can't use this when cross compiling as
+ the bitfield layout might not be the same as native.
+
+ struct modebyte
+ {
+ unsigned int regfield:4;
+ unsigned int modefield:4;
+ };
+*/
+/* *INDENT-ON* */
/*
* A symbol to be the child of indirect calls:
*/
-Sym indirectchild;
+static Sym indirectchild;
+static operandenum vax_operandmode (unsigned char *);
+static char *vax_operandname (operandenum);
+static long vax_operandlength (unsigned char *);
+static bfd_signed_vma vax_offset (unsigned char *);
+void vax_find_call (Sym *, bfd_vma, bfd_vma);
static operandenum
-operandmode(modep)
- struct modebyte *modep;
+vax_operandmode (unsigned char *modep)
{
- 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;
+ int usesreg = *modep & 0xf;
+
+ switch ((*modep >> 4) & 0xf)
+ {
+ 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;
}
- /* NOTREACHED */
+ /* NOTREACHED */
+ abort ();
}
static char *
-operandname(mode)
- operandenum mode;
+vax_operandname (operandenum mode)
{
-
- 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";
+
+ 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";
}
- /* NOTREACHED */
+ /* NOTREACHED */
+ abort ();
}
static long
-operandlength(modep)
- struct modebyte *modep;
+vax_operandlength (unsigned char *modep)
{
-
- 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);
+
+ switch (vax_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 + vax_operandlength (modep + 1);
}
- /* NOTREACHED */
+ /* NOTREACHED */
+ abort ();
}
-static bfd_vma
-reladdr(modep)
- struct modebyte *modep;
+static bfd_signed_vma
+vax_offset (unsigned char *modep)
{
- operandenum mode = operandmode(modep);
- char *cp;
- short *sp;
- long *lp;
+ operandenum mode = vax_operandmode (modep);
- 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);
+ ++modep; /* skip over the mode */
+ switch (mode)
+ {
+ default:
+ fprintf (stderr, "[reladdr] not relative address\n");
+ return 0;
+ case byterel:
+ return 1 + bfd_get_signed_8 (core_bfd, modep);
+ case wordrel:
+ return 2 + bfd_get_signed_16 (core_bfd, modep);
+ case longrel:
+ return 4 + bfd_get_signed_32 (core_bfd, modep);
}
}
void
-find_call(parent, p_lowpc, p_highpc)
- Sym *parent;
- bfd_vma p_lowpc;
- bfd_vma p_highpc;
+vax_find_call (Sym *parent, bfd_vma p_lowpc, bfd_vma p_highpc)
{
- unsigned char *instructp;
- long length;
- Sym *child;
- operandenum mode;
- operandenum firstmode;
- bfd_vma destpc;
- static bool inited = FALSE;
-
- if (!inited) {
- inited = TRUE;
- sym_init(&indirectchild);
- indirectchild.cg.prop.fract = 1.0;
- indirectchild.cg.cyc.head = &indirectchild;
- } /* if */
+ unsigned char *instructp;
+ long length;
+ Sym *child;
+ operandenum mode;
+ operandenum firstmode;
+ bfd_vma pc, destpc;
+ static bfd_boolean inited = FALSE;
- if (core_text_space == 0) {
- return;
+ if (!inited)
+ {
+ inited = TRUE;
+ sym_init (&indirectchild);
+ indirectchild.cg.prop.fract = 1.0;
+ indirectchild.cg.cyc.head = &indirectchild;
}
- if (p_lowpc < s_lowpc) {
- p_lowpc = s_lowpc;
- }
- if (p_highpc > s_highpc) {
- p_highpc = s_highpc;
- }
- DBG(CALLDEBUG, printf("[findcall] %s: 0x%lx to 0x%lx\n",
- parent->name, p_lowpc, p_highpc));
- 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;
+
+ DBG (CALLDEBUG, printf ("[findcall] %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 += length)
+ {
+ length = 1;
+ instructp = ((unsigned char *) core_text_space
+ + pc - core_text_sect->vma);
+ if ((*instructp & 0xff) == CALLS)
+ {
+ /*
+ * maybe a calls, better check it out.
+ * skip the count of the number of arguments.
+ */
+ DBG (CALLDEBUG,
+ printf ("[findcall]\t0x%lx:calls", (unsigned long) pc));
+ firstmode = vax_operandmode (instructp + length);
+ switch (firstmode)
+ {
+ case literal:
+ case immediate:
+ break;
+ default:
+ goto botched;
}
- 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;
- }
- goto botched;
+ length += vax_operandlength (instructp + length);
+ mode = vax_operandmode (instructp + length);
+ DBG (CALLDEBUG,
+ printf ("\tfirst operand is %s", vax_operandname (firstmode));
+ printf ("\tsecond operand is %s\n", vax_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, (unsigned long) 0);
+ length += vax_operandlength (instructp + length);
+ continue;
+ case byterel:
+ case wordrel:
+ case longrel:
+ /*
+ * regular pc relative addressing
+ * check that this is the address of
+ * a function.
+ */
+ destpc = pc + vax_offset (instructp + length);
+ if (hist_check_address (destpc))
+ {
+ child = sym_lookup (&symtab, destpc);
+ if (child)
+ {
+ DBG (CALLDEBUG,
+ printf ("[findcall]\tdestpc 0x%lx",
+ (unsigned long) destpc);
+ printf (" child->name %s", child->name);
+ printf (" child->addr 0x%lx\n",
+ (unsigned long) child->addr);
+ );
+ if (child->addr == destpc)
+ {
+ /*
+ * a hit
+ */
+ arc_add (parent, child, (unsigned long) 0);
+ length += vax_operandlength (instructp + length);
+ continue;
+ }
}
- /*
- * 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;
+ 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;
}
}
}
projects / deliverable / binutils-gdb.git / blobdiff