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.
26 * A symbol to be the child of indirect calls:
33 struct modebyte *modep;
35 long usesreg = modep->regfield;
37 switch (modep->modefield)
53 return usesreg != PC ? autoinc : immediate;
55 return usesreg != PC ? autoincdef : absolute;
57 return usesreg != PC ? bytedisp : byterel;
59 return usesreg != PC ? bytedispdef : bytereldef;
61 return usesreg != PC ? worddisp : wordrel;
63 return usesreg != PC ? worddispdef : wordreldef;
65 return usesreg != PC ? longdisp : longrel;
67 return usesreg != PC ? longdispdef : longreldef;
86 return "register deferred";
88 return "autodecrement";
90 return "autoincrement";
92 return "autoincrement deferred";
94 return "byte displacement";
96 return "byte displacement deferred";
98 return "byte relative";
100 return "byte relative deferred";
102 return "word displacement";
104 return "word displacement deferred";
106 return "word relative";
108 return "word relative deferred";
114 return "long displacement";
116 return "long displacement deferred";
118 return "long relative";
120 return "long relative deferred";
126 operandlength (modep)
127 struct modebyte *modep;
130 switch (operandmode (modep))
157 return 1 + operandlength ((struct modebyte *) ((char *) modep) + 1);
164 struct modebyte *modep;
166 operandenum mode = operandmode (modep);
172 ++cp; /* skip over the mode */
176 fprintf (stderr, "[reladdr] not relative address\n");
177 return (bfd_vma) modep;
179 return (bfd_vma) (cp + sizeof *cp + *cp);
182 return (bfd_vma) (cp + sizeof *sp + *sp);
185 return (bfd_vma) (cp + sizeof *lp + *lp);
191 find_call (parent, p_lowpc, p_highpc)
196 unsigned char *instructp;
200 operandenum firstmode;
202 static bool inited = FALSE;
207 sym_init (&indirectchild);
208 indirectchild.cg.prop.fract = 1.0;
209 indirectchild.cg.cyc.head = &indirectchild;
212 if (core_text_space == 0)
216 if (p_lowpc < s_lowpc)
220 if (p_highpc > s_highpc)
224 DBG (CALLDEBUG, printf ("[findcall] %s: 0x%lx to 0x%lx\n",
225 parent->name, p_lowpc, p_highpc));
226 for (instructp = (unsigned char *) core_text_space + p_lowpc;
227 instructp < (unsigned char *) core_text_space + p_highpc;
231 if (*instructp == CALLS)
234 * maybe a calls, better check it out.
235 * skip the count of the number of arguments.
238 printf ("[findcall]\t0x%x:calls",
239 instructp - (unsigned char *) core_text_space));
240 firstmode = operandmode ((struct modebyte *) (instructp + length));
249 length += operandlength ((struct modebyte *) (instructp + length));
250 mode = operandmode ((struct modebyte *) (instructp + length));
252 printf ("\tfirst operand is %s", operandname (firstmode));
253 printf ("\tsecond operand is %s\n", operandname (mode)));
264 * indirect call: call through pointer
265 * either *d(r) as a parameter or local
266 * (r) as a return value
267 * *f as a global pointer
268 * [are there others that we miss?,
269 * e.g. arrays of pointers to functions???]
271 arc_add (parent, &indirectchild, (long) 0);
272 length += operandlength (
273 (struct modebyte *) (instructp + length));
279 * regular pc relative addressing
280 * check that this is the address of
283 destpc = reladdr ((struct modebyte *) (instructp + length))
284 - (bfd_vma) core_text_space;
285 if (destpc >= s_lowpc && destpc <= s_highpc)
287 child = sym_lookup (&symtab, destpc);
289 printf ("[findcall]\tdestpc 0x%lx", destpc);
290 printf (" child->name %s", child->name);
291 printf (" child->addr 0x%lx\n", child->addr);
293 if (child->addr == destpc)
298 arc_add (parent, child, (long) 0);
299 length += operandlength ((struct modebyte *)
300 (instructp + length));
307 * it looked like a calls,
308 * but it wasn't to anywhere.
314 * something funny going on.
316 DBG (CALLDEBUG, printf ("[findcall]\tbut it's a botch\n"));