2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Debug facility.
23 * @author Michael Beck, Sebastian Hack
41 static struct obstack dbg_obst;
42 static set *module_set;
47 struct _firm_dbg_module_t {
54 * Compares two modules by comparing it's names
56 static int module_cmp(const void *p1, const void *p2, size_t size)
58 const firm_dbg_module_t *m1 = p1;
59 const firm_dbg_module_t *m2 = p2;
62 return strcmp(m1->name, m2->name);
66 * initialize the debug module
68 static void firm_dbg_init(void)
70 obstack_init(&dbg_obst);
71 module_set = new_set(module_cmp, 16);
74 firm_dbg_module_t *firm_dbg_register(const char *name)
76 firm_dbg_module_t mod;
84 return set_insert(module_set, &mod, sizeof(mod), HASH_STR(name, strlen(name)));
87 void firm_dbg_set_mask(firm_dbg_module_t *module, unsigned mask)
92 unsigned firm_dbg_get_mask(const firm_dbg_module_t *module)
97 void firm_dbg_set_file(firm_dbg_module_t *module, FILE *file)
103 * A message info: a pair of debug handle and message
105 typedef struct _msg_info_t {
107 const firm_dbg_module_t *mod;
111 * Formats a message given by a printf-like format and a va_list argument,
112 * puts the test on an obstack and return a msg_info.
114 static void *make_msg_info(const firm_dbg_module_t *mod, const char *fmt, va_list args)
116 static const char msg_header[] = "%s(%d) %s: ";
117 msg_info_t *res = obstack_alloc(&dbg_obst, sizeof(*res));
119 obstack_grow(&dbg_obst, msg_header, sizeof(msg_header) - 1);
120 ir_obst_vprintf(&dbg_obst, fmt, args);
121 obstack_1grow(&dbg_obst, '\0');
123 res->msg = obstack_finish(&dbg_obst);
128 void *_firm_dbg_make_msg(const firm_dbg_module_t *mod, unsigned mask, const char *fmt, ...)
132 if(mask == 0 || (mod->mask & mask)) {
135 res = make_msg_info(mod, fmt, args);
142 void _firm_dbg_print_msg(const char *filename, int line, const char *func, void *mi_ptr)
144 msg_info_t *mi = mi_ptr;
146 fprintf(mi->mod->file, mi->msg, filename, line, func);
147 obstack_free(&dbg_obst, mi);
151 void _firm_dbg_print(const firm_dbg_module_t *mod, unsigned mask, const char *fmt, ...)
153 if(mask == 0 || (mod->mask & mask)) {
157 ir_obst_vprintf(&dbg_obst, fmt, args);
158 obstack_1grow(&dbg_obst, '\0');
159 res = obstack_finish(&dbg_obst);
160 fprintf(mod->file, "%s", res);
161 obstack_free(&dbg_obst, res);
166 #else /* DEBUG_libfirm */
168 /* some picky compiler don't allow empty files */
169 static int __attribute__((unused)) dummy;
171 #endif /* DEBUG_libfirm */