1/* coverage.h - Defines data exported from coverage.c
2   Copyright (C) 1998-2015 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14for more details.
15
16You should have received a copy of the GNU General Public License
17along 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
25extern void coverage_init (const char *);
26extern void coverage_finish (void);
27
28/* Start outputting coverage information for the current
29   function.  */
30extern int coverage_begin_function (unsigned, unsigned);
31
32/* Complete the coverage information for the current function.  */
33extern void coverage_end_function (unsigned, unsigned);
34
35/* Compute the control flow checksum for the function FN given as argument.  */
36extern unsigned coverage_compute_cfg_checksum (struct function *fn);
37
38/* Compute the profile id of function N.  */
39extern unsigned coverage_compute_profile_id (struct cgraph_node *n);
40
41/* Compute the line number checksum for the current function.  */
42extern unsigned coverage_compute_lineno_checksum (void);
43
44/* Allocate some counters. Repeatable per function.  */
45extern int coverage_counter_alloc (unsigned /*counter*/, unsigned/*num*/);
46/* Use a counter from the most recent allocation.  */
47extern tree tree_coverage_counter_ref (unsigned /*counter*/, unsigned/*num*/);
48/* Use a counter address from the most recent allocation.  */
49extern tree tree_coverage_counter_addr (unsigned /*counter*/, unsigned/*num*/);
50
51/* Get all the counters for the current function.  */
52extern 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
58extern tree get_gcov_type (void);
59extern bool coverage_node_map_initialized_p (void);
60
61#endif
62