gprof/bbconv.pl

   1 #! /usr/bin/perl
   2
   3 # This script converts a "bb.out" file into a format
   4 # suitable for processing by gprof
   5 #
   6 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
   7 #
   8 #   This file is part of GNU Binutils.
   9 #
  10 #   This program is free software; you can redistribute it and/or modify
  11 #   it under the terms of the GNU General Public License as published by
  12 #   the Free Software Foundation; either version 3 of the License, or
  13 #   (at your option) any later version.
  14 #
  15 #   This program is distributed in the hope that it will be useful,
  16 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 #   GNU General Public License for more details.
  19 #
  20 #   You should have received a copy of the GNU General Public License
  21 #   along with this program; if not, write to the Free Software
  22 #   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  23 #   02110-1301, USA.
  24
  25 # Write a new-style gmon header
  26
  27 print pack("A4Ix12", "gmon", 1);
  28
  29
  30 # The input file format contains header lines and data lines.
  31 # Header lines contain a count of how many data lines follow before
  32 # the next header line.  $blockcount is set to the count that
  33 # appears in each header line, then decremented at each data line.
  34 # $blockcount should always be zero at the start of a header line,
  35 # and should never be zero at the start of a data line.
  36
  37 $blockcount=0;
  38
  39 while (<>) {
  40     if (/^File .*, ([0-9]+) basic blocks/) {
  41         print STDERR "Miscount: line $.\n" if ($blockcount != 0);
  42         $blockcount = $1;
  43
  44         print pack("cI", 2, $blockcount);
  45     }
  46     if (/Block.*executed([ 0-9]+) time.* address= 0x([0-9a-fA-F]*)/) {
  47         print STDERR "Miscount: line $.\n" if ($blockcount == 0);
  48         $blockcount-- if ($blockcount > 0);
  49
  50         $count = $1;
  51         $addr = hex $2;
  52
  53         print pack("II",$addr,$count);
  54     }
  55 }