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#include "cg_arcs.h"
#include "call_graph.h"
#include "core.h"
#include "gmon_io.h"
#include "gmon_out.h"
#include "symtab.h"
#include "sym_ids.h"
extern void
DEFUN (cg_tally, (from_pc, self_pc, count),
bfd_vma from_pc AND bfd_vma self_pc AND int count)
{
Sym *parent;
Sym *child;
parent = sym_lookup (&symtab, from_pc);
child = sym_lookup (&symtab, self_pc);
/*
* Keep arc if it is on INCL_ARCS table or if the INCL_ARCS table
* is empty and it is not in the EXCL_ARCS table.
*/
if (sym_id_arc_is_present (&syms[INCL_ARCS], parent, child)
|| (syms[INCL_ARCS].len == 0
&& !sym_id_arc_is_present (&syms[EXCL_ARCS], parent, child)))
{
child->ncalls += count;
DBG (TALLYDEBUG,
printf ("[cg_tally] arc from %s to %s traversed %d times\n",
parent->name, child->name, count));
arc_add (parent, child, count);
}
}
/*
* Read a record from file IFP describing an arc in the function
* call-graph and the count of how many times the arc has been
* traversed. FILENAME is the name of file IFP and is provided
* for formatting error-messages only.
*/
void
DEFUN (cg_read_rec, (ifp, filename), FILE * ifp AND CONST char *filename)
{
bfd_vma from_pc, self_pc;
struct gmon_cg_arc_record arc;
int count;
if (fread (&arc, sizeof (arc), 1, ifp) != 1)
{
fprintf (stderr, "%s: %s: unexpected end of file\n",
whoami, filename);
done (1);
}
from_pc = get_vma (core_bfd, (bfd_byte *) arc.from_pc);
self_pc = get_vma (core_bfd, (bfd_byte *) arc.self_pc);
count = bfd_get_32 (core_bfd, (bfd_byte *) arc.count);
DBG (SAMPLEDEBUG,
printf ("[cg_read_rec] frompc 0x%lx selfpc 0x%lx count %d\n",
from_pc, self_pc, count));
/* add this arc: */
cg_tally (from_pc, self_pc, count);
}
/*
* Write all the arcs in the call-graph to file OFP. FILENAME is
* the name of OFP and is provided for formatting error-messages
* only.
*/
void
DEFUN (cg_write_arcs, (ofp, filename), FILE * ofp AND const char *filename)
{
const unsigned char tag = GMON_TAG_CG_ARC;
struct gmon_cg_arc_record raw_arc;
Arc *arc;
Sym *sym;
for (sym = symtab.base; sym < symtab.limit; sym++)
{
for (arc = sym->cg.children; arc; arc = arc->next_child)
{
put_vma (core_bfd, arc->parent->addr, (bfd_byte *) raw_arc.from_pc);
put_vma (core_bfd, arc->child->addr, (bfd_byte *) raw_arc.self_pc);
bfd_put_32 (core_bfd, arc->count, (bfd_byte *) raw_arc.count);
if (fwrite (&tag, sizeof (tag), 1, ofp) != 1
|| fwrite (&raw_arc, sizeof (raw_arc), 1, ofp) != 1)
{
perror (filename);
done (1);
}
DBG (SAMPLEDEBUG,
printf ("[cg_write_arcs] frompc 0x%lx selfpc 0x%lx count %d\n",
arc->parent->addr, arc->child->addr, arc->count));
}
}
}
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