1 /* Debug counter for debugging support
2 Copyright (C) 2006, 2007, 2008, 2009, 2010 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
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
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. */
24 #include "coretypes.h"
25 #include "diagnostic-core.h"
32 struct string2counter_map {
34 enum debug_counter counter;
37 #define DEBUG_COUNTER(a) { #a , a },
39 static struct string2counter_map map[debug_counter_number_of_counters] =
45 #define DEBUG_COUNTER(a) UINT_MAX,
46 static unsigned int limit[debug_counter_number_of_counters] =
52 static unsigned int count[debug_counter_number_of_counters];
55 dbg_cnt_is_enabled (enum debug_counter index)
57 return count[index] <= limit[index];
61 dbg_cnt (enum debug_counter index)
64 if (dump_file && count[index] == limit[index])
65 fprintf (dump_file, "***dbgcnt: limit reached for %s.***\n",
68 return dbg_cnt_is_enabled (index);
73 dbg_cnt_set_limit_by_index (enum debug_counter index, int value)
77 fprintf (stderr, "dbg_cnt '%s' set to %d\n", map[index].name, value);
81 dbg_cnt_set_limit_by_name (const char *name, int len, int value)
84 for (i = debug_counter_number_of_counters - 1; i >= 0; i--)
85 if (strncmp (map[i].name, name, len) == 0
86 && map[i].name[len] == '\0')
92 dbg_cnt_set_limit_by_index ((enum debug_counter) i, value);
97 /* Process a single "name:value" pair.
98 Returns NULL if there's no valid pair is found.
99 Otherwise returns a pointer to the end of the pair. */
102 dbg_cnt_process_single_pair (const char *arg)
104 const char *colon = strchr (arg, ':');
111 value = strtol (colon + 1, &endptr, 10);
113 if (endptr != NULL && endptr != colon + 1
114 && dbg_cnt_set_limit_by_name (arg, colon - arg, value))
121 dbg_cnt_process_opt (const char *arg)
123 const char *start = arg;
126 next = dbg_cnt_process_single_pair (arg);
129 } while (*next == ',' && (arg = next + 1));
131 if (next == NULL || *next != 0)
133 char *buffer = XALLOCAVEC (char, arg - start + 2);
134 sprintf (buffer, "%*c", (int)(1 + (arg - start)), '^');
135 error ("cannot find a valid counter:value pair:");
136 error ("-fdbg-cnt=%s", start);
137 error (" %s", buffer);
141 /* Print name, limit and count of all counters. */
144 dbg_cnt_list_all_counters (void)
147 printf (" %-30s %-5s %-5s\n", "counter name", "limit", "value");
148 printf ("----------------------------------------------\n");
149 for (i = 0; i < debug_counter_number_of_counters; i++)
150 printf (" %-30s %5d %5u\n",
151 map[i].name, limit[map[i].counter], count[map[i].counter]);