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Diffstat (limited to 'gprof/tahoe.c')
-rw-r--r-- | gprof/tahoe.c | 345 |
1 files changed, 0 insertions, 345 deletions
diff --git a/gprof/tahoe.c b/gprof/tahoe.c deleted file mode 100644 index d133c177950..00000000000 --- a/gprof/tahoe.c +++ /dev/null @@ -1,345 +0,0 @@ -/* - * 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 CALLF 0xfe - - /* - * register for pc relative addressing - */ -#define PC 0xf - -enum tahoe_opermodes - { - literal, indexed, reg, regdef, autodec, autoinc, autoincdef, - bytedisp, bytedispdef, worddisp, worddispdef, longdisp, longdispdef, - immediate, absolute, byterel, bytereldef, wordrel, wordreldef, - longrel, longreldef - }; -typedef enum tahoe_opermodes tahoe_operandenum; - -/* - * A symbol to be the child of indirect callf: - */ -Sym indirectchild; - - -tahoe_operandenum -tahoe_operandmode (modep) - unsigned char *modep; -{ - long usesreg = ((long) *modep) & 0xf; - - switch (((long) *modep) >> 4) - { - 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 != 0xe ? 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 */ - abort (); -} - -char * -tahoe_operandname (mode) - tahoe_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"; - } - /* NOTREACHED */ - abort (); -} - -long -tahoe_operandlength (modep) - unsigned char *modep; -{ - - switch (tahoe_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 + tahoe_operandlength (modep + 1); - } - /* NOTREACHED */ - abort (); -} - -bfd_vma -tahoe_reladdr (modep) - char *modep; -{ - tahoe_operandenum mode = tahoe_operandmode (modep); - char *cp; - short *sp; - long *lp; - int i; - long value = 0; - - cp = 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: - for (i = 0; (size_t) i < sizeof *sp; i++) - value = (value << 8) + (cp[i] & 0xff); - return (bfd_vma) (cp + sizeof *sp + value); - case longrel: - for (i = 0; (size_t) i < sizeof *lp; i++) - value = (value << 8) + (cp[i] & 0xff); - return (bfd_vma) (cp + sizeof *lp + value); - } -} - -void -tahoe_find_call (parent, p_lowpc, p_highpc) - Sym *parent; - bfd_vma p_lowpc; - bfd_vma p_highpc; -{ - unsigned char *instructp; - long length; - Sym *child; - tahoe_operandenum mode; - tahoe_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 (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 ("[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 == CALLF) - { - /* - * maybe a callf, better check it out. - * skip the count of the number of arguments. - */ - DBG (CALLDEBUG, printf ("[findcall]\t0x%x:callf", - instructp - (unsigned char *) core_text_space)); - firstmode = tahoe_operandmode (instructp + length); - switch (firstmode) - { - case literal: - case immediate: - break; - default: - goto botched; - } - length += tahoe_operandlength (instructp + length); - mode = tahoe_operandmode (instructp + length); - DBG (CALLDEBUG, - printf ("\tfirst operand is %s", tahoe_operandname (firstmode)); - printf ("\tsecond operand is %s\n", tahoe_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 += tahoe_operandlength (instructp + length); - continue; - case byterel: - case wordrel: - case longrel: - /* - * regular pc relative addressing - * check that this is the address of - * a function. - */ - destpc = tahoe_reladdr (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, (unsigned long) 0); - length += tahoe_operandlength (instructp + length); - continue; - } - goto botched; - } - /* - * else: - * it looked like a callf, - * 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; - } - } - } -} |