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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [dbgcnt.c] - Rev 507
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/* Debug counter for debugging support Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>. See dbgcnt.def for usage information. */ #include "config.h" #include "system.h" #include "coretypes.h" #include "errors.h" #include "tm.h" #include "rtl.h" #include "output.h" #include "dbgcnt.h" struct string2counter_map { const char *name; enum debug_counter counter; }; #define DEBUG_COUNTER(a) { #a , a }, static struct string2counter_map map[debug_counter_number_of_counters] = { #include "dbgcnt.def" }; #undef DEBUG_COUNTER #define DEBUG_COUNTER(a) UINT_MAX, static unsigned int limit[debug_counter_number_of_counters] = { #include "dbgcnt.def" }; #undef DEBUG_COUNTER static unsigned int count[debug_counter_number_of_counters]; bool dbg_cnt_is_enabled (enum debug_counter index) { return count[index] <= limit[index]; } bool dbg_cnt (enum debug_counter index) { count[index]++; if (dump_file && count[index] == limit[index]) fprintf (dump_file, "***dbgcnt: limit reached for %s.***\n", map[index].name); return dbg_cnt_is_enabled (index); } static void dbg_cnt_set_limit_by_index (enum debug_counter index, int value) { limit[index] = value; fprintf (stderr, "dbg_cnt '%s' set to %d\n", map[index].name, value); } static bool dbg_cnt_set_limit_by_name (const char *name, int len, int value) { int i; for (i = debug_counter_number_of_counters - 1; i >= 0; i--) if (strncmp (map[i].name, name, len) == 0 && map[i].name[len] == '\0') break; if (i < 0) return false; dbg_cnt_set_limit_by_index ((enum debug_counter) i, value); return true; } /* Process a single "name:value" pair. Returns NULL if there's no valid pair is found. Otherwise returns a pointer to the end of the pair. */ static const char * dbg_cnt_process_single_pair (const char *arg) { const char *colon = strchr (arg, ':'); char *endptr = NULL; int value; if (colon == NULL) return NULL; value = strtol (colon + 1, &endptr, 10); if (endptr != NULL && endptr != colon + 1 && dbg_cnt_set_limit_by_name (arg, colon - arg, value)) return endptr; return NULL; } void dbg_cnt_process_opt (const char *arg) { const char *start = arg; const char *next; do { next = dbg_cnt_process_single_pair (arg); if (next == NULL) break; } while (*next == ',' && (arg = next + 1)); if (next == NULL || *next != 0) { char *buffer = XALLOCAVEC (char, arg - start + 2); sprintf (buffer, "%*c", (int)(1 + (arg - start)), '^'); error ("Can not find a valid counter:value pair:"); error ("-fdbg-cnt=%s", start); error (" %s", buffer); } } /* Print name, limit and count of all counters. */ void dbg_cnt_list_all_counters (void) { int i; printf (" %-30s %-5s %-5s\n", "counter name", "limit", "value"); printf ("----------------------------------------------\n"); for (i = 0; i < debug_counter_number_of_counters; i++) printf (" %-30s %5d %5u\n", map[i].name, limit[map[i].counter], count[map[i].counter]); printf ("\n"); }
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