1 /* Copyright (C) 2012-2019 Free Software Foundation, Inc.
3 This file is part of GNU Binutils.
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.
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.
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. */
24 * Arc structure for call-graph.
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.
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? */
43 extern unsigned int num_cycles; /* number of cycles discovered */
44 extern Sym *cycle_header; /* cycle headers */
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);
50 extern unsigned int numarcs;
52 #endif /* cg_arcs_h */