ksplice-cc.pl

   1 #!/usr/bin/perl
   2
   3 # Copyright (C) 2008-2009  Ksplice, Inc.
   4 # Authors: Anders Kaseorg, Jeff Arnold, Tim Abbott
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License, version 2.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  17 # 02110-1301, USA.
  18
  19 use strict;
  20 use warnings;
  21 use IPC::Open3;
  22 use Cwd qw(abs_path);
  23 use File::Basename;
  24
  25 my $dir = abs_path(dirname($0) . "/ksplice-patch");
  26 my @cmd;
  27 foreach (@ARGV) {
  28         if (/^-ksplice-cflags-api=1$/) {
  29                 push @cmd, "-I$dir";
  30                 push @cmd, qw(-D__DATE__="<{DATE...}>" -D__TIME__="<{TIME}>");
  31         } else {
  32                 push @cmd, $_;
  33         }
  34 }
  35
  36 my $pid = open3('<&STDIN', '>&STDOUT', \*ERROR, @cmd);
  37 while (<ERROR>) {
  38         next if /^<command[- ]line>(?::\d+:\d+)?: warning: "(?:__DATE__|__TIME__)" redefined$/;
  39         print STDERR;
  40 }
  41 close ERROR;
  42 waitpid($pid, 0) == $pid and ($? & 127) == 0 or die;
  43 exit($? >> 8);