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) 2001-2017 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 <https://www.gnu.org/licenses/>.
  21
  22
  23 require 5;
  24 use strict;
  25 use warnings;
  26 use Getopt::Long;
  27 use File::Basename;
  28 use Cwd;
  29
  30 # Default CVS sandbox directory.  Only used when called from outside
  31 # of the sandbox.
  32
  33 $root = $ENV{"EMACS_ROOT"};
  34 $root = "/gd/gnu/emacs" unless $root;
  35
  36 # Default make command.
  37
  38 $make = $ENV{"EMACS_MAKE"};
  39 $make = "gmake" unless $make;
  40
  41 $rc = GetOptions ("help" => \$help,
  42                   "enable-checking" => \$enable_checking,
  43                   "no-warn" => \$no_warn,
  44                   "check-marked" => \$check_marked,
  45                   "all" => \$all,
  46                   "no-optim" => \$no_optim,
  47                   "check-lisp-type" => \$check_lisp_type,
  48                   "gprof" => \$profile,
  49                   "malloc-check" => \$malloc_check,
  50                   "no-mcheck" => \$no_mcheck,
  51                   "alias" => \$aliasing,
  52                   "boot" => \$boot,
  53                   "wall" => \$wall,
  54                   "gcc3" => \$gcc3,
  55                   "trace-selection" => \$trace_selection,
  56                   "trace-move" => \$trace_move,
  57                   "stabs" => \$use_stabs,
  58                   "optim" => \$optim);
  59
  60 if ($rc == 0 || $help)
  61  {
  62    print <<USAGE;
  63 make-emacs [options] ...
  64
  65 Build Emacs.
  66
  67  --help                 show this help
  68  --all                  make clean versionclean first
  69  --boot                 make bootstrap, log to boot.log
  70  --enable-checking      ENABLE_CHECKING=1
  71  --no-warn              disable warnings
  72  --check-marked         GC_CHECK_MARKED_OBJECTS=1
  73  --optim                no debug defines
  74  --gprof                make Emacs for profiling
  75  --check-lisp-type      define CHECK_LISP_OBJECT_TYPE
  76  --malloc-check         define GC_MALLOC_CHECK
  77  --no-mcheck            don't define GC_MCHECK
  78  --wall                 compile with -Wall
  79  --gcc3                 use GCC 3.0 (30% slower compilation, slower code)
  80  --trace-selection      print traces in xselect.c
  81  --trace-move           print traces for move_it* functions
  82  --stabs                use -gstabs instead -g
  83
  84 Default is to compile with warnings, with -DGC_MCHECK=1, and
  85 with -DGLYPH_DEBUG=1.
  86
  87 USAGE
  88    exit 1;
  89  }
  90
  91 # Chdir to the top-level directory of the tree.  If not in a tree
  92 # containing Emacs, use the default.
  93
  94 while (! -f "src/emacs.c" && cwd () ne "/")
  95   {
  96     chdir "..";
  97   }
  98
  99 chdir $root if cwd () eq "/";
 100 chdir "./src";
 101 print "Build in ", cwd (), "\n";
 102
 103 # If first arg is 'all' or if '--all' specified, ensure a clean
 104 # build.
 105
 106 if (@ARGV && $ARGV[0] eq "all")
 107   {
 108     $all = 1;
 109     shift @ARGV;
 110   }
 111
 112 system ("$make clean versionclean") if $all;
 113
 114 if ($wall)
 115   {
 116     $warn = "-Wall";
 117   }
 118 elsif (!$no_warn)
 119   {
 120     $warn = "-Wpointer-arith -Wchar-subscripts -Wformat -Wimplicit-int";
 121     $warn = "$warn -Wreturn-type -Wswitch -Wuninitialized";
 122   }
 123
 124 $defs = "-DGLYPH_DEBUG=1" unless $optim;
 125 $defs = "$defs -DGC_CHECK_MARKED_OBJECTS=1" if $check_marked;
 126 $defs = "$defs -DENABLE_CHECKING=1" if $enable_checking;
 127
 128 if ($profile)
 129   {
 130     $opts = "-pg";
 131     $defs = "$defs -DPROFILING=1";
 132   }
 133 else
 134   {
 135     if ($use_stabs)
 136       {
 137         $opts = "-gstabs";
 138       }
 139     else
 140       {
 141         $opts = "-g";
 142       }
 143   }
 144
 145 $defs = "$defs -DCHECK_LISP_OBJECT_TYPE" if $check_lisp_type;
 146 $defs = "$defs -DGC_MALLOC_CHECK=1 -DGC_PROTECT_MALLOC_STATE=1" if $malloc_check;
 147 $defs = "$defs -DGC_MCHECK=1" unless $no_mcheck;
 148
 149 $defs = "$defs -DTRACE_SELECTION" if $trace_selection;
 150 $defs = "$defs -DDEBUG_TRACE_MOVE" if $trace_move;
 151
 152 # arch=pentium leads to slightly faster code than without.
 153 $opts = "$opts -march=pentiumpro";
 154
 155 if ($optim)
 156   {
 157     $opts = "$opts -pipe -O3";
 158   }
 159 elsif ($no_optim)
 160   {
 161     $opts = "$opts -pipe -fno-inline";
 162   }
 163 else
 164   {
 165     $opts = "$opts -O -pipe -fno-inline";
 166   }
 167
 168 $opts = "$opts -fstrict-aliasing" if $aliasing;
 169
 170 $opts = "$opts $defs" if $defs;
 171 $opts = "$opts $warn" if $warn;
 172
 173 $cc = "/usr/bin/gcc";
 174 $cc = "/gd/local/bin/gcc" if $gcc3;
 175
 176 if ($boot)
 177   {
 178     chdir "..";
 179     system "mv boot.log boot.log.old" if -f "boot.log";
 180     exit system "script boot.log $make CC=\"$cc\" CFLAGS=\"$opts\" bootstrap";
 181   }
 182
 183 exit system "$make CC=\"$cc\" CFLAGS=\"$opts\" @ARGV";
 184
 185 # Local Variables:
 186 # mode: cperl
 187 # End: