1 /*
2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
3 *
4 * This file is part of libFirm.
5 *
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.
10 *
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.
14 *
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
17 * PURPOSE.
18 */
19
20 /**
21 * @file
22 * @brief Implements the Firm interface to debug information.
23 * @author Goetz Lindenmaier, Michael Beck
24 * @date 2001
25 */
26 #include "config.h"
27
28 #include "dbginfo_t.h"
29 #include "irnode_t.h"
30 #include "type_t.h"
31 #include "entity_t.h"
32 #include "error.h"
33
34 merge_pair_func *__dbg_info_merge_pair = default_dbg_info_merge_pair;
35 merge_sets_func *__dbg_info_merge_sets = default_dbg_info_merge_sets;
36
dbg_init(merge_pair_func * mpf,merge_sets_func * msf)37 void dbg_init(merge_pair_func *mpf, merge_sets_func *msf)
38 {
39 __dbg_info_merge_pair = mpf ? mpf : default_dbg_info_merge_pair;
40 __dbg_info_merge_sets = msf ? msf : default_dbg_info_merge_sets;
41 }
42
43 /*
44 * Converts a debug_action into a string.
45 */
dbg_action_2_str(dbg_action a)46 const char *dbg_action_2_str(dbg_action a)
47 {
48 #define CASE(a) case a: return #a
49
50 switch (a) {
51 CASE(dbg_error);
52 CASE(dbg_opt_ssa);
53 CASE(dbg_opt_auxnode);
54 CASE(dbg_const_eval);
55 CASE(dbg_opt_cse);
56 CASE(dbg_straightening);
57 CASE(dbg_if_simplification);
58 CASE(dbg_algebraic_simplification);
59 CASE(dbg_write_after_write);
60 CASE(dbg_write_after_read);
61 CASE(dbg_read_after_write);
62 CASE(dbg_read_after_read);
63 CASE(dbg_read_a_const);
64 CASE(dbg_rem_poly_call);
65 CASE(dbg_dead_code);
66 CASE(dbg_opt_confirm);
67 CASE(dbg_gvn_pre);
68 CASE(dbg_combo);
69 CASE(dbg_jumpthreading);
70 CASE(dbg_backend);
71 default:
72 if (a <= dbg_max)
73 return "string conversion not implemented";
74 else
75 panic("Missing debug action");
76 }
77 #undef CASE
78 }
79
default_dbg_info_merge_pair(ir_node * nw,ir_node * old,dbg_action info)80 void default_dbg_info_merge_pair(ir_node *nw, ir_node *old, dbg_action info)
81 {
82 dbg_info *new_db = get_irn_dbg_info(nw);
83 (void) info;
84 if (new_db == NULL)
85 set_irn_dbg_info(nw, get_irn_dbg_info(old));
86 }
87
default_dbg_info_merge_sets(ir_node ** new_nodes,int n_new_nodes,ir_node ** old_nodes,int n_old_nodes,dbg_action info)88 void default_dbg_info_merge_sets(ir_node **new_nodes, int n_new_nodes,
89 ir_node **old_nodes, int n_old_nodes,
90 dbg_action info)
91 {
92 (void) info;
93 if (n_old_nodes == 1) {
94 dbg_info *old_db = get_irn_dbg_info(old_nodes[0]);
95 int i;
96
97 for (i = 0; i < n_new_nodes; ++i)
98 if (get_irn_dbg_info(new_nodes[i]) == NULL)
99 set_irn_dbg_info(new_nodes[i], old_db);
100 }
101 }
102
default_retrieve_dbg(dbg_info const * const dbg)103 static src_loc_t default_retrieve_dbg(dbg_info const *const dbg)
104 {
105 (void)dbg;
106 src_loc_t const loc = { NULL, 0, 0 };
107 return loc;
108 }
109
110 /** The debug info retriever function. */
111 static retrieve_dbg_func retrieve_dbg = default_retrieve_dbg;
112 static retrieve_type_dbg_func retrieve_type_dbg = NULL;
113
ir_set_debug_retrieve(retrieve_dbg_func func)114 void ir_set_debug_retrieve(retrieve_dbg_func func)
115 {
116 retrieve_dbg = func ? func : default_retrieve_dbg;
117 }
118
ir_retrieve_dbg_info(dbg_info const * const dbg)119 src_loc_t ir_retrieve_dbg_info(dbg_info const *const dbg)
120 {
121 return retrieve_dbg(dbg);
122 }
123
ir_set_type_debug_retrieve(retrieve_type_dbg_func func)124 void ir_set_type_debug_retrieve(retrieve_type_dbg_func func)
125 {
126 retrieve_type_dbg = func;
127 }
128
ir_retrieve_type_dbg_info(char * buffer,size_t buffer_size,const type_dbg_info * tdbgi)129 void ir_retrieve_type_dbg_info(char *buffer, size_t buffer_size,
130 const type_dbg_info *tdbgi)
131 {
132 buffer[0] = '\0';
133 if (retrieve_type_dbg)
134 retrieve_type_dbg(buffer, buffer_size, tdbgi);
135 assert(buffer_size > 0);
136 buffer[buffer_size-1] = '\0';
137 }
138
ir_dbg_info_snprint(char * buf,size_t bufsize,const dbg_info * dbg)139 void ir_dbg_info_snprint(char *buf, size_t bufsize, const dbg_info *dbg)
140 {
141 src_loc_t const loc = ir_retrieve_dbg_info(dbg);
142
143 if (!loc.file) {
144 assert(bufsize > 0);
145 buf[0] = 0;
146 return;
147 }
148 if (loc.column == 0) {
149 snprintf(buf, bufsize, "%s:%u", loc.file, loc.line);
150 } else {
151 snprintf(buf, bufsize, "%s:%u:%u", loc.file, loc.line, loc.column);
152 }
153 }
154