10 char *spec; /* parsing modifies this */
15 int prev_index; /* index of prev match */
16 Sym *prev_match; /* previous match */
17 Sym *first_match; /* chain of all matches */
24 Sym_Table syms[NUM_TABLES];
27 const char *table_name[] =
29 "INCL_GRAPH", "EXCL_GRAPH",
30 "INCL_ARCS", "EXCL_ARCS",
31 "INCL_FLAT", "EXCL_FLAT",
32 "INCL_TIME", "EXCL_TIME",
33 "INCL_ANNO", "EXCL_ANNO",
34 "INCL_EXEC", "EXCL_EXEC"
39 * This is the table in which we keep all the syms that match
40 * the right half of an arc id. It is NOT sorted according
41 * to the addresses, because it is accessed only through
42 * the left half's CHILDREN pointers (so it's crucial not
43 * to reorder this table once pointers into it exist).
45 static Sym_Table right_ids;
47 static Source_File non_existent_file =
49 0, "<non-existent-file>"
54 DEFUN (sym_id_add, (spec, which_table),
55 const char *spec AND Table_Id which_table)
58 int len = strlen (spec);
60 id = (struct sym_id *) xmalloc (sizeof (*id) + len + 1);
61 memset (id, 0, sizeof (*id));
63 id->spec = (char *) id + sizeof (*id);
64 strcpy (id->spec, spec);
65 id->which_table = which_table;
73 * A spec has the syntax FILENAME:(FUNCNAME|LINENUM). As a convenience
74 * to the user, a spec without a colon is interpreted as:
76 * (i) a FILENAME if it contains a dot
77 * (ii) a FUNCNAME if it starts with a non-digit character
78 * (iii) a LINENUM if it starts with a digit
80 * A FUNCNAME containing a dot can be specified by :FUNCNAME, a
81 * FILENAME not containing a dot can be specified by FILENAME:.
84 DEFUN (parse_spec, (spec, sym), char *spec AND Sym * sym)
89 colon = strrchr (spec, ':');
95 sym->file = source_file_lookup_name (spec);
98 sym->file = &non_existent_file;
104 if (isdigit ((unsigned char) spec[0]))
106 sym->line_num = atoi (spec);
114 else if (strlen (spec))
116 /* no colon: spec is a filename if it contains a dot: */
117 if (strchr (spec, '.'))
119 sym->file = source_file_lookup_name (spec);
122 sym->file = &non_existent_file;
125 else if (isdigit ((unsigned char) *spec))
127 sym->line_num = atoi (spec);
129 else if (strlen (spec))
138 * A symbol id has the syntax SPEC[/SPEC], where SPEC is is defined
142 DEFUN (parse_id, (id), struct sym_id *id)
146 DBG (IDDEBUG, printf ("[parse_id] %s -> ", id->spec));
148 slash = strchr (id->spec, '/');
151 parse_spec (slash + 1, &id->right.sym);
153 id->has_right = TRUE;
155 parse_spec (id->spec, &id->left.sym);
158 if (debug_level & IDDEBUG)
160 printf ("%s:", id->left.sym.file ? id->left.sym.file->name : "*");
161 if (id->left.sym.name)
163 printf ("%s", id->left.sym.name);
165 else if (id->left.sym.line_num)
167 printf ("%d", id->left.sym.line_num);
176 id->right.sym.file ? id->right.sym.file->name : "*");
177 if (id->right.sym.name)
179 printf ("%s", id->right.sym.name);
181 else if (id->right.sym.line_num)
183 printf ("%d", id->right.sym.line_num);
197 * Return TRUE iff PATTERN matches SYM.
200 DEFUN (match, (pattern, sym), Sym * pattern AND Sym * sym)
202 return (pattern->file ? pattern->file == sym->file : TRUE)
203 && (pattern->line_num ? pattern->line_num == sym->line_num : TRUE)
204 && (pattern->name ? strcmp (pattern->name, sym->name) == 0 : TRUE);
209 DEFUN (extend_match, (m, sym, tab, second_pass),
210 struct match *m AND Sym * sym AND Sym_Table * tab AND bool second_pass)
212 if (m->prev_match != sym - 1)
214 /* discontinuity: add new match to table: */
217 tab->base[tab->len] = *sym;
218 m->prev_index = tab->len;
220 /* link match into match's chain: */
221 tab->base[tab->len].next = m->first_match;
222 m->first_match = &tab->base[tab->len];
227 /* extend match to include this symbol: */
230 tab->base[m->prev_index].end_addr = sym->end_addr;
237 * Go through sym_id list produced by option processing and fill
238 * in the various symbol tables indicating what symbols should
239 * be displayed or suppressed for the various kinds of outputs.
241 * This can potentially produce huge tables and in particulars
242 * tons of arcs, but this happens only if the user makes silly
243 * requests---you get what you ask for!
246 DEFUN_VOID (sym_id_parse)
248 Sym *sym, *left, *right;
253 * Convert symbol ids into Syms, so we can deal with them more easily:
255 for (id = id_list; id; id = id->next)
260 /* first determine size of each table: */
262 for (sym = symtab.base; sym < symtab.limit; ++sym)
264 for (id = id_list; id; id = id->next)
266 if (match (&id->left.sym, sym))
268 extend_match (&id->left, sym, &syms[id->which_table], FALSE);
270 if (id->has_right && match (&id->right.sym, sym))
272 extend_match (&id->right, sym, &right_ids, FALSE);
277 /* create tables of appropriate size and reset lengths: */
279 for (tab = syms; tab < &syms[NUM_TABLES]; ++tab)
283 tab->base = (Sym *) xmalloc (tab->len * sizeof (Sym));
284 tab->limit = tab->base + tab->len;
290 right_ids.base = (Sym *) xmalloc (right_ids.len * sizeof (Sym));
291 right_ids.limit = right_ids.base + right_ids.len;
295 /* make a second pass through symtab, creating syms as necessary: */
297 for (sym = symtab.base; sym < symtab.limit; ++sym)
299 for (id = id_list; id; id = id->next)
301 if (match (&id->left.sym, sym))
303 extend_match (&id->left, sym, &syms[id->which_table], TRUE);
305 if (id->has_right && match (&id->right.sym, sym))
307 extend_match (&id->right, sym, &right_ids, TRUE);
312 /* go through ids creating arcs as needed: */
314 for (id = id_list; id; id = id->next)
318 for (left = id->left.first_match; left; left = left->next)
320 for (right = id->right.first_match; right; right = right->next)
324 "[sym_id_parse]: arc %s:%s(%lx-%lx) -> %s:%s(%lx-%lx) to %s\n",
325 left->file ? left->file->name : "*",
326 left->name ? left->name : "*", left->addr,
328 right->file ? right->file->name : "*",
329 right->name ? right->name : "*", right->addr,
331 table_name[id->which_table]));
332 arc_add (left, right, (unsigned long) 0);
338 /* finally, we can sort the tables and we're done: */
340 for (tab = &syms[0]; tab < &syms[NUM_TABLES]; ++tab)
342 DBG (IDDEBUG, printf ("[sym_id_parse] syms[%s]:\n",
343 table_name[tab - &syms[0]]));
344 symtab_finalize (tab);
350 * Symbol tables storing the FROM symbols of arcs do not necessarily
351 * have distinct address ranges. For example, somebody might request
352 * -k /_mcount to suppress any arcs into _mcount, while at the same
353 * time requesting -k a/b. Fortunately, those symbol tables don't get
354 * very big (the user has to type them!), so a linear search is probably
358 DEFUN (sym_id_arc_is_present, (symtab, from, to),
359 Sym_Table * symtab AND Sym * from AND Sym * to)
363 for (sym = symtab->base; sym < symtab->limit; ++sym)
365 if (from->addr >= sym->addr && from->addr <= sym->end_addr
366 && arc_lookup (sym, to))