1 /* Debug counter for debugging support
2 Copyright (C) 2006, 2007 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 2, 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 COPYING. If not, write to the Free
18 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
21 See dbgcnt.def for usage information. */
25 #include "coretypes.h"
30 struct string2counter_map {
32 enum debug_counter counter;
35 #define DEBUG_COUNTER(a) { #a , a },
37 static struct string2counter_map map[debug_counter_number_of_counters] =
43 #define DEBUG_COUNTER(a) UINT_MAX,
44 static unsigned int limit[debug_counter_number_of_counters] =
50 static unsigned int count[debug_counter_number_of_counters];
53 dbg_cnt_is_enabled (enum debug_counter index)
55 return count[index] <= limit[index];
59 dbg_cnt (enum debug_counter index)
62 return dbg_cnt_is_enabled (index);
67 dbg_cnt_set_limit_by_index (enum debug_counter index, int value)
71 fprintf (stderr, "dbg_cnt '%s' set to %d\n", map[index].name, value);
75 dbg_cnt_set_limit_by_name (const char *name, int len, int value)
78 for (i = debug_counter_number_of_counters - 1; i >= 0; i--)
79 if (!strncmp (map[i].name, name, len))
85 dbg_cnt_set_limit_by_index (i, value);
90 /* Process a single "name:value" pair.
91 Returns NULL if there's no valid pair is found.
92 Otherwise returns a pointer to the end of the pair. */
95 dbg_cnt_process_single_pair (const char *arg)
97 char *colon = strchr (arg, ':');
104 value = strtol (colon + 1, &endptr, 10);
106 if (endptr != NULL && endptr != colon + 1
107 && dbg_cnt_set_limit_by_name (arg, colon - arg, value))
114 dbg_cnt_process_opt (const char *arg)
116 const char *start = arg;
119 next = dbg_cnt_process_single_pair (arg);
122 } while (*next == ',' && (arg = next + 1));
124 if (next == NULL || *next != 0)
126 char *buffer = alloca (arg - start + 2);
127 sprintf (buffer, "%*c", (int)(1 + (arg - start)), '^');
128 error ("Can not find a valid counter:value pair:");
129 error ("-fdbg-cnt=%s", start);
130 error (" %s", buffer);
134 /* Print name, limit and count of all counters. */
136 void dbg_cnt_list_all_counters (void)
139 printf (" %-30s %-5s %-5s\n", "counter name", "limit", "value");
140 printf ("----------------------------------------------\n");
141 for (i = 0; i < debug_counter_number_of_counters; i++)
142 printf (" %-30s %5d %5u\n",
143 map[i].name, limit[map[i].counter], count[map[i].counter]);