merge from gcc
[binutils.git] / gprof / cg_arcs.h
blobfe1af776f24ab51837434aeec9d1f76957580da0
1 #ifndef cg_arcs_h
2 #define cg_arcs_h
4 /*
5 * Arc structure for call-graph.
7 * With pointers to the symbols of the parent and the child, a count
8 * of how many times this arc was traversed, and pointers to the next
9 * parent of this child and the next child of this parent.
11 typedef struct arc
13 Sym *parent; /* source vertice of arc */
14 Sym *child; /* dest vertice of arc */
15 unsigned long count; /* # of calls from parent to child */
16 double time; /* time inherited along arc */
17 double child_time; /* child-time inherited along arc */
18 struct arc *next_parent; /* next parent of CHILD */
19 struct arc *next_child; /* next child of PARENT */
20 int has_been_placed; /* have this arc's functions been placed? */
22 Arc;
24 extern unsigned int num_cycles; /* number of cycles discovered */
25 extern Sym *cycle_header; /* cycle headers */
27 extern void arc_add (Sym * parent, Sym * child, unsigned long count);
28 extern Arc *arc_lookup (Sym * parent, Sym * child);
29 extern Sym **cg_assemble (void);
30 extern Arc **arcs;
31 extern unsigned int numarcs;
33 #endif /* cg_arcs_h */