admin/make-emacs

   1 #! /usr/bin/perl
   2 # Build Emacs with various options for profiling, debugging,
   3 # with and without warnings enabled etc.
   4
   5 # Copyright (C) 2001-2011  Free Software Foundation, Inc.
   6
   7 # This file is part of GNU Emacs.
   8
   9 # GNU Emacs is free software: you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation, either version 3 of the License, or
  12 # (at your option) any later version.
  13
  14 # GNU Emacs is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18
  19 # You should have received a copy of the GNU General Public License
  20 # along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  21
  22
  23 require 5;
  24 use Getopt::Long;
  25 use File::Basename;
  26 use Cwd;
  27
  28 # Default CVS sandbox directory.  Only used when called from outside
  29 # of the sandbox.
  30
  31 $root = $ENV{"EMACS_ROOT"};
  32 $root = "/gd/gnu/emacs" unless $root;
  33
  34 # Default make command.
  35
  36 $make = $ENV{"EMACS_MAKE"};
  37 $make = "gmake" unless $make;
  38
  39 $rc = GetOptions ("help" => \$help,
  40                   "enable-checking" => \$enable_checking,
  41                   "no-warn" => \$no_warn,
  42                   "check-marked" => \$check_marked,
  43                   "all" => \$all,
  44                   "no-optim" => \$no_optim,
  45                   "union-type" => \$union_type,
  46                   "gprof" => \$profile,
  47                   "malloc-check" => \$malloc_check,
  48                   "no-mcheck" => \$no_mcheck,
  49                   "alias" => \$aliasing,
  50                   "boot" => \$boot,
  51                   "wall" => \$wall,
  52                   "gcc3" => \$gcc3,
  53                   "trace-selection" => \$trace_selection,
  54                   "trace-move" => \$trace_move,
  55                   "stabs" => \$use_stabs,
  56                   "optim" => \$optim);
  57
  58 if ($rc == 0 || $help)
  59  {
  60    print <<USAGE;
  61 make-emacs [options] ...
  62
  63 Build Emacs.
  64
  65  --help                 show this help
  66  --all                  make clean versionclean first
  67  --boot                 make bootstrap, log to boot.log
  68  --enable-checking      ENABLE_CHECKING=1
  69  --no-warn              disable warnings
  70  --check-marked         GC_CHECK_MARKED_OBJECTS=1
  71  --optim                no debug defines
  72  --gprof                make Emacs for profiling
  73  --union-type           define USE_LISP_UNION_TYPE (bad for GDB)
  74  --malloc-check         define GC_MALLOC_CHECK
  75  --no-mcheck            dont define GC_MCHECK
  76  --wall                 compile with -Wall
  77  --gcc3                 use GCC 3.0 (30% slower compilation, slower code)
  78  --trace-selection      print traces in xselect.c
  79  --trace-move           print traces for move_it* functions
  80  --stabs                use -gstabs instead -g
  81
  82 Default is to compile with warnings, with -DGC_MCHECK=1, and
  83 with -DGLYPH_DEBUG=1.
  84
  85 USAGE
  86    exit 1;
  87  }
  88
  89 # Chdir to the top-level directory of the tree.  If not in a tree
  90 # containing Emacs, use the default.
  91
  92 while (! -f "src/emacs.c" && cwd () ne "/")
  93   {
  94     chdir "..";
  95   }
  96
  97 chdir $root if cwd () eq "/";
  98 chdir "./src";
  99 print "Build in ", cwd (), "\n";
 100
 101 # If first arg is `all' or if `--all' specified, ensure a clean
 102 # build.
 103
 104 if (@ARGV && $ARGV[0] eq "all")
 105   {
 106     $all = 1;
 107     shift @ARGV;
 108   }
 109
 110 system ("$make clean versionclean") if $all;
 111
 112 if ($wall)
 113   {
 114     $warn = "-Wall";
 115   }
 116 elsif (!$no_warn)
 117   {
 118     $warn = "-Wpointer-arith -Wchar-subscripts -Wformat -Wimplicit-int";
 119     $warn = "$warn -Wreturn-type -Wswitch -Wuninitialized";
 120   }
 121
 122 $defs = "-DGLYPH_DEBUG=1" unless $optim;
 123 $defs = "$defs -DGC_CHECK_MARKED_OBJECTS=1" if $check_marked;
 124 $defs = "$defs -DENABLE_CHECKING=1" if $enable_checking;
 125
 126 if ($profile)
 127   {
 128     $opts = "-pg";
 129     $defs = "$defs -DPROFILING=1";
 130   }
 131 else
 132   {
 133     if ($use_stabs)
 134       {
 135         $opts = "-gstabs";
 136       }
 137     else
 138       {
 139         $opts = "-g";
 140       }
 141   }
 142
 143 $defs = "$defs -DUSE_LISP_UNION_TYPE" if $union_type;
 144 $defs = "$defs -DGC_MALLOC_CHECK=1 -DGC_PROTECT_MALLOC_STATE=1" if $malloc_check;
 145 $defs = "$defs -DGC_MCHECK=1" unless $no_mcheck;
 146
 147 $defs = "$defs -DTRACE_SELECTION" if $trace_selection;
 148 $defs = "$defs -DDEBUG_TRACE_MOVE" if $trace_move;
 149
 150 # arch=pentium leads to slightly faster code than without.
 151 $opts = "$opts -march=pentiumpro";
 152
 153 if ($optim)
 154   {
 155     $opts = "$opts -pipe -O3";
 156   }
 157 elsif ($no_optim)
 158   {
 159     $opts = "$opts -pipe -fno-inline";
 160   }
 161 else
 162   {
 163     $opts = "$opts -O -pipe -fno-inline";
 164   }
 165
 166 $opts = "$opts -fstrict-aliasing" if $aliasing;
 167
 168 $opts = "$opts $defs" if $defs;
 169 $opts = "$opts $warn" if $warn;
 170
 171 $cc = "/usr/bin/gcc";
 172 $cc = "/gd/local/bin/gcc" if $gcc3;
 173
 174 if ($boot)
 175   {
 176     chdir "..";
 177     system "mv boot.log boot.log.old" if -f "boot.log";
 178     exit system "script boot.log $make CC=\"$cc\" CFLAGS=\"$opts\" bootstrap";
 179   }
 180
 181 exit system "$make CC=\"$cc\" CFLAGS=\"$opts\" @ARGV";
 182
 183 # Local Variables:
 184 # mode: cperl
 185 # End: