* tree.h (TYPE_OVERFLOW_SANITIZED): Define.
[official-gcc.git] / gcc / dbgcnt.c
blob2a484a60c4175e450bb2b5bb11492b7345370ea5
1 /* Debug counter for debugging support
2 Copyright (C) 2006-2014 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
9 version.
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>.
20 See dbgcnt.def for usage information. */
22 #include "config.h"
23 #include "system.h"
24 #include "coretypes.h"
25 #include "diagnostic-core.h"
26 #include "dumpfile.h"
28 #include "dbgcnt.h"
30 struct string2counter_map {
31 const char *name;
32 enum debug_counter counter;
35 #define DEBUG_COUNTER(a) { #a , a },
37 static struct string2counter_map map[debug_counter_number_of_counters] =
39 #include "dbgcnt.def"
41 #undef DEBUG_COUNTER
43 #define DEBUG_COUNTER(a) UINT_MAX,
44 static unsigned int limit[debug_counter_number_of_counters] =
46 #include "dbgcnt.def"
48 #undef DEBUG_COUNTER
50 static unsigned int count[debug_counter_number_of_counters];
52 bool
53 dbg_cnt_is_enabled (enum debug_counter index)
55 return count[index] <= limit[index];
58 bool
59 dbg_cnt (enum debug_counter index)
61 count[index]++;
62 if (dump_file && count[index] == limit[index])
63 fprintf (dump_file, "***dbgcnt: limit reached for %s.***\n",
64 map[index].name);
66 return dbg_cnt_is_enabled (index);
70 static void
71 dbg_cnt_set_limit_by_index (enum debug_counter index, int value)
73 limit[index] = value;
75 fprintf (stderr, "dbg_cnt '%s' set to %d\n", map[index].name, value);
78 static bool
79 dbg_cnt_set_limit_by_name (const char *name, int len, int value)
81 int i;
82 for (i = debug_counter_number_of_counters - 1; i >= 0; i--)
83 if (strncmp (map[i].name, name, len) == 0
84 && map[i].name[len] == '\0')
85 break;
87 if (i < 0)
88 return false;
90 dbg_cnt_set_limit_by_index ((enum debug_counter) i, value);
91 return true;
95 /* Process a single "name:value" pair.
96 Returns NULL if there's no valid pair is found.
97 Otherwise returns a pointer to the end of the pair. */
99 static const char *
100 dbg_cnt_process_single_pair (const char *arg)
102 const char *colon = strchr (arg, ':');
103 char *endptr = NULL;
104 int value;
106 if (colon == NULL)
107 return NULL;
109 value = strtol (colon + 1, &endptr, 10);
111 if (endptr != NULL && endptr != colon + 1
112 && dbg_cnt_set_limit_by_name (arg, colon - arg, value))
113 return endptr;
115 return NULL;
118 void
119 dbg_cnt_process_opt (const char *arg)
121 const char *start = arg;
122 const char *next;
123 do {
124 next = dbg_cnt_process_single_pair (arg);
125 if (next == NULL)
126 break;
127 } while (*next == ',' && (arg = next + 1));
129 if (next == NULL || *next != 0)
131 char *buffer = XALLOCAVEC (char, arg - start + 2);
132 sprintf (buffer, "%*c", (int)(1 + (arg - start)), '^');
133 error ("cannot find a valid counter:value pair:");
134 error ("-fdbg-cnt=%s", start);
135 error (" %s", buffer);
139 /* Print name, limit and count of all counters. */
141 void
142 dbg_cnt_list_all_counters (void)
144 int i;
145 printf (" %-30s %-5s %-5s\n", "counter name", "limit", "value");
146 printf ("----------------------------------------------\n");
147 for (i = 0; i < debug_counter_number_of_counters; i++)
148 printf (" %-30s %5d %5u\n",
149 map[i].name, limit[map[i].counter], count[map[i].counter]);
150 printf ("\n");