2 * Copyright (c) 1983 Regents of the University of California.
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.
27 * A symbol to be the child of indirect calls:
34 struct modebyte *modep;
36 long usesreg = modep->regfield;
38 switch (modep->modefield)
54 return usesreg != PC ? autoinc : immediate;
56 return usesreg != PC ? autoincdef : absolute;
58 return usesreg != PC ? bytedisp : byterel;
60 return usesreg != PC ? bytedispdef : bytereldef;
62 return usesreg != PC ? worddisp : wordrel;
64 return usesreg != PC ? worddispdef : wordreldef;
66 return usesreg != PC ? longdisp : longrel;
68 return usesreg != PC ? longdispdef : longreldef;
87 return "register deferred";
89 return "autodecrement";
91 return "autoincrement";
93 return "autoincrement deferred";
95 return "byte displacement";
97 return "byte displacement deferred";
99 return "byte relative";
101 return "byte relative deferred";
103 return "word displacement";
105 return "word displacement deferred";
107 return "word relative";
109 return "word relative deferred";
115 return "long displacement";
117 return "long displacement deferred";
119 return "long relative";
121 return "long relative deferred";
127 operandlength (modep)
128 struct modebyte *modep;
131 switch (operandmode (modep))
158 return 1 + operandlength ((struct modebyte *) ((char *) modep) + 1);
165 struct modebyte *modep;
167 operandenum mode = operandmode (modep);
173 ++cp; /* skip over the mode */
177 fprintf (stderr, "[reladdr] not relative address\n");
178 return (bfd_vma) modep;
180 return (bfd_vma) (cp + sizeof *cp + *cp);
183 return (bfd_vma) (cp + sizeof *sp + *sp);
186 return (bfd_vma) (cp + sizeof *lp + *lp);
192 find_call (parent, p_lowpc, p_highpc)
197 unsigned char *instructp;
201 operandenum firstmode;
203 static bool inited = FALSE;
208 sym_init (&indirectchild);
209 indirectchild.cg.prop.fract = 1.0;
210 indirectchild.cg.cyc.head = &indirectchild;
213 if (core_text_space == 0)
217 if (p_lowpc < s_lowpc)
221 if (p_highpc > s_highpc)
225 DBG (CALLDEBUG, printf ("[findcall] %s: 0x%lx to 0x%lx\n",
226 parent->name, p_lowpc, p_highpc));
227 for (instructp = (unsigned char *) core_text_space + p_lowpc;
228 instructp < (unsigned char *) core_text_space + p_highpc;
232 if (*instructp == CALLS)
235 * maybe a calls, better check it out.
236 * skip the count of the number of arguments.
239 printf ("[findcall]\t0x%x:calls",
240 instructp - (unsigned char *) core_text_space));
241 firstmode = operandmode ((struct modebyte *) (instructp + length));
250 length += operandlength ((struct modebyte *) (instructp + length));
251 mode = operandmode ((struct modebyte *) (instructp + length));
253 printf ("\tfirst operand is %s", operandname (firstmode));
254 printf ("\tsecond operand is %s\n", operandname (mode)));
265 * indirect call: call through pointer
266 * either *d(r) as a parameter or local
267 * (r) as a return value
268 * *f as a global pointer
269 * [are there others that we miss?,
270 * e.g. arrays of pointers to functions???]
272 arc_add (parent, &indirectchild, (long) 0);
273 length += operandlength (
274 (struct modebyte *) (instructp + length));
280 * regular pc relative addressing
281 * check that this is the address of
284 destpc = reladdr ((struct modebyte *) (instructp + length))
285 - (bfd_vma) core_text_space;
286 if (destpc >= s_lowpc && destpc <= s_highpc)
288 child = sym_lookup (&symtab, destpc);
290 printf ("[findcall]\tdestpc 0x%lx", destpc);
291 printf (" child->name %s", child->name);
292 printf (" child->addr 0x%lx\n", child->addr);
294 if (child->addr == destpc)
299 arc_add (parent, child, (long) 0);
300 length += operandlength ((struct modebyte *)
301 (instructp + length));
308 * it looked like a calls,
309 * but it wasn't to anywhere.
315 * something funny going on.
317 DBG (CALLDEBUG, printf ("[findcall]\tbut it's a botch\n"));