2 #include "call_graph.h"
10 DEFUN (cg_tally, (from_pc, self_pc, count),
11 bfd_vma from_pc AND bfd_vma self_pc AND unsigned long count)
16 parent = sym_lookup (&symtab, from_pc);
17 child = sym_lookup (&symtab, self_pc);
19 if (child == NULL || parent == NULL)
22 /* If we're doing line-by-line profiling, both the parent and the
23 child will probably point to line symbols instead of function
24 symbols. For the parent this is fine, since this identifies the
25 line number in the calling routing, but the child should always
26 point to a function entry point, so we back up in the symbol
27 table until we find it.
29 For normal profiling, is_func will be set on all symbols, so this
30 code will do nothing. */
32 while (child >= symtab.base && ! child->is_func)
35 if (child < symtab.base)
39 * Keep arc if it is on INCL_ARCS table or if the INCL_ARCS table
40 * is empty and it is not in the EXCL_ARCS table.
42 if (sym_id_arc_is_present (&syms[INCL_ARCS], parent, child)
43 || (syms[INCL_ARCS].len == 0
44 && !sym_id_arc_is_present (&syms[EXCL_ARCS], parent, child)))
46 child->ncalls += count;
48 printf (_("[cg_tally] arc from %s to %s traversed %lu times\n"),
49 parent->name, child->name, count));
50 arc_add (parent, child, count);
56 * Read a record from file IFP describing an arc in the function
57 * call-graph and the count of how many times the arc has been
58 * traversed. FILENAME is the name of file IFP and is provided
59 * for formatting error-messages only.
62 DEFUN (cg_read_rec, (ifp, filename), FILE * ifp AND CONST char *filename)
64 bfd_vma from_pc, self_pc;
65 struct gmon_cg_arc_record arc;
68 if (fread (&arc, sizeof (arc), 1, ifp) != 1)
70 fprintf (stderr, _("%s: %s: unexpected end of file\n"),
74 from_pc = get_vma (core_bfd, (bfd_byte *) arc.from_pc);
75 self_pc = get_vma (core_bfd, (bfd_byte *) arc.self_pc);
76 count = bfd_get_32 (core_bfd, (bfd_byte *) arc.count);
78 printf ("[cg_read_rec] frompc 0x%lx selfpc 0x%lx count %lu\n",
79 from_pc, self_pc, count));
81 cg_tally (from_pc, self_pc, count);
86 * Write all the arcs in the call-graph to file OFP. FILENAME is
87 * the name of OFP and is provided for formatting error-messages
91 DEFUN (cg_write_arcs, (ofp, filename), FILE * ofp AND const char *filename)
93 const unsigned char tag = GMON_TAG_CG_ARC;
94 struct gmon_cg_arc_record raw_arc;
98 for (sym = symtab.base; sym < symtab.limit; sym++)
100 for (arc = sym->cg.children; arc; arc = arc->next_child)
102 put_vma (core_bfd, arc->parent->addr, (bfd_byte *) raw_arc.from_pc);
103 put_vma (core_bfd, arc->child->addr, (bfd_byte *) raw_arc.self_pc);
104 bfd_put_32 (core_bfd, arc->count, (bfd_byte *) raw_arc.count);
105 if (fwrite (&tag, sizeof (tag), 1, ofp) != 1
106 || fwrite (&raw_arc, sizeof (raw_arc), 1, ofp) != 1)
112 printf ("[cg_write_arcs] frompc 0x%lx selfpc 0x%lx count %lu\n",
113 arc->parent->addr, arc->child->addr, arc->count));