1 /* Copyright (C) 2012-2016 Free Software Foundation, Inc.
2 
3    This file is part of GNU Binutils.
4 
5    This program is free software; you can redistribute it and/or modify
6    it under the terms of the GNU General Public License as published by
7    the Free Software Foundation; either version 3 of the License, or
8    (at your option) any later version.
9 
10    This program is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13    GNU General Public License for more details.
14 
15    You should have received a copy of the GNU General Public License
16    along with this program; if not, write to the Free Software
17    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
18    MA 02110-1301, USA.  */
19 
20 #ifndef cg_arcs_h
21 #define cg_arcs_h
22 
23 /*
24  * Arc structure for call-graph.
25  *
26  * With pointers to the symbols of the parent and the child, a count
27  * of how many times this arc was traversed, and pointers to the next
28  * parent of this child and the next child of this parent.
29  */
30 typedef struct arc
31   {
32     Sym *parent;		/* source vertice of arc */
33     Sym *child;			/* dest vertice of arc */
34     unsigned long count;	/* # of calls from parent to child */
35     double time;		/* time inherited along arc */
36     double child_time;		/* child-time inherited along arc */
37     struct arc *next_parent;	/* next parent of CHILD */
38     struct arc *next_child;	/* next child of PARENT */
39     int has_been_placed;	/* have this arc's functions been placed? */
40   }
41 Arc;
42 
43 extern unsigned int num_cycles;	/* number of cycles discovered */
44 extern Sym *cycle_header;	/* cycle headers */
45 
46 extern void arc_add (Sym * parent, Sym * child, unsigned long count);
47 extern Arc *arc_lookup (Sym * parent, Sym * child);
48 extern Sym **cg_assemble (void);
49 extern Arc **arcs;
50 extern unsigned int numarcs;
51 
52 #endif /* cg_arcs_h */
53