gcc/coverage.h

   1 /* coverage.h - Defines data exported from coverage.c
   2    Copyright (C) 1998-2015 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   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.
  10
  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.
  15
  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/>.  */
  19
  20 #ifndef GCC_COVERAGE_H
  21 #define GCC_COVERAGE_H
  22
  23 #include "gcov-io.h"
  24
  25 extern void coverage_init (const char *);
  26 extern void coverage_finish (void);
  27
  28 /* Start outputting coverage information for the current
  29    function.  */
  30 extern int coverage_begin_function (unsigned, unsigned);
  31
  32 /* Complete the coverage information for the current function.  */
  33 extern void coverage_end_function (unsigned, unsigned);
  34
  35 /* Compute the control flow checksum for the function FN given as argument.  */
  36 extern unsigned coverage_compute_cfg_checksum (struct function *fn);
  37
  38 /* Compute the profile id of function N.  */
  39 extern unsigned coverage_compute_profile_id (struct cgraph_node *n);
  40
  41 /* Compute the line number checksum for the current function.  */
  42 extern unsigned coverage_compute_lineno_checksum (void);
  43
  44 /* Allocate some counters. Repeatable per function.  */
  45 extern int coverage_counter_alloc (unsigned /*counter*/, unsigned/*num*/);
  46 /* Use a counter from the most recent allocation.  */
  47 extern tree tree_coverage_counter_ref (unsigned /*counter*/, unsigned/*num*/);
  48 /* Use a counter address from the most recent allocation.  */
  49 extern tree tree_coverage_counter_addr (unsigned /*counter*/, unsigned/*num*/);
  50
  51 /* Get all the counters for the current function.  */
  52 extern gcov_type *get_coverage_counts (unsigned /*counter*/,
  53                                        unsigned /*expected*/,
  54                                        unsigned /*cfg_checksum*/,
  55                                        unsigned /*lineno_checksum*/,
  56                                        const struct gcov_ctr_summary **);
  57
  58 extern tree get_gcov_type (void);
  59 extern bool coverage_node_map_initialized_p (void);
  60
  61 #endif