1 /* $OpenBSD: trace.c,v 1.6 2002/04/26 16:15:16 espie Exp $ */
3 * Copyright (c) 2001 Marc Espie.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
15 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD
18 * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
20 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 * $FreeBSD: src/usr.bin/m4/trace.c,v 1.7 2002/07/15 02:15:12 jmallett Exp $
27 * $DragonFly: src/usr.bin/m4/trace.c,v 1.3 2006/12/27 21:29:02 pavalos Exp $
30 #include <sys/types.h>
42 int traced_macros = 0;
45 #define TRACE_EXPANSION 2
47 #define TRACE_FILENAME 8
48 #define TRACE_LINENO 16
51 #define TRACE_NEWFILE 128 /* not implemented yet */
52 #define TRACE_INPUT 256 /* not implemented yet */
61 static unsigned int letter_to_flag(int);
62 static void print_header(struct input_file *);
63 static struct t *find_trace_entry(const char *);
64 static int frame_level(void);
66 static unsigned int flags = TRACE_QUOTE | TRACE_EXPANSION;
69 find_trace_entry(const char *name)
73 for (n = l; n != NULL; n = n->next)
74 if (STREQ(n->name, name))
81 mark_traced(const char *name, int on)
94 for (n = l; n != NULL; n = n2) {
101 n = find_trace_entry(name);
103 n = xalloc(sizeof(struct t));
104 n->name = xstrdup(name);
113 is_traced(const char *name)
117 for (n = l; n != NULL; n = n->next)
118 if (STREQ(n->name, name))
120 return (flags & TRACE_ALL) ? 1 : 0;
124 trace_file(const char *name)
127 if (traceout != stderr)
129 traceout = fopen(name, "w");
131 err(1, "can't open %s", name);
135 letter_to_flag(int c)
141 return TRACE_EXPANSION;
149 return TRACE_FILENAME;
153 return TRACE_NEWFILE;
166 set_trace_flags(const char *s)
173 if (*s == '+' || *s == '-')
176 f |= letter_to_flag(*s++);
196 for (framep = fp, level = 0; framep != 0;
197 level++,framep = mstack[framep-2].sfra)
203 print_header(struct input_file *inp)
205 fprintf(traceout, "m4trace:");
206 if (flags & TRACE_FILENAME)
207 fprintf(traceout, "%s:", inp->name);
208 if (flags & TRACE_LINENO)
209 fprintf(traceout, "%lu:", inp->lineno);
210 fprintf(traceout, " -%d- ", frame_level());
211 if (flags & TRACE_ID)
212 fprintf(traceout, "id %lu: ", expansion_id);
216 trace(const char *argv[], int argc, struct input_file *inp)
219 if (flags & TRACE_CONT) {
220 fprintf(traceout, "%s ...\n", argv[1]);
223 fprintf(traceout, "%s", argv[1]);
224 if ((flags & TRACE_ARGS) && argc > 2) {
230 for (i = 2; i < argc; i++) {
231 fprintf(traceout, "%s%s%s%s", delim,
232 (flags & TRACE_QUOTE) ? lquote : "",
234 (flags & TRACE_QUOTE) ? rquote : "");
239 fprintf(traceout, "%c", RPAREN);
241 if (flags & TRACE_CONT) {
242 fprintf(traceout, " -> ???\n");
244 fprintf(traceout, argc > 2 ? "%s(...)" : "%s", argv[1]);
246 if (flags & TRACE_EXPANSION)
247 return buffer_mark();
249 fprintf(traceout, "\n");
255 finish_trace(size_t mark)
257 fprintf(traceout, " -> ");
258 if (flags & TRACE_QUOTE)
259 fprintf(traceout, "%s", lquote);
260 dump_buffer(traceout, mark);
261 if (flags & TRACE_QUOTE)
262 fprintf(traceout, "%s", rquote);
263 fprintf(traceout, "\n");