configure

   1 #! /usr/bin/perl
   2 use strict;
   3 use Cwd;
   4 #####################################################################
   5 ##### LightOS                                                   #####
   6 #####################################################################
   7 my $CPU = "pentium";
   8 my $arch = "x86";
   9 my $v86 = 0;
  10 my $elfsymbols = 0;
  11 my $optimize = "-O2";
  12 my $debug = 0;
  13 my $smp = 0;
  14 my $acpi = 0;
  15
  16 my $yasm = 0;
  17 my $binutils = 0;
  18 my $nano = 0;
  19 my $nasm = 0;
  20 my $make = 0;
  21 my $bash = 0;
  22 my $dash = 0;
  23
  24 my $bzip2 = 0;
  25 my $freetype = 0;
  26 my $libpng = 0;
  27 my $zlib = 0;
  28
  29 while (my $param = shift)
  30 {
  31   if ($param eq "--help")
  32   {
  33     print "configure options:                      default:\n";
  34     print " general\n";
  35     print "   --dbg                                not set\n";
  36     print "   --cpu <gcc cpu name>                 pentium\n";
  37     print "   --arch {x86, x86_64}                 x86\n";
  38     print "   --elf-symbols                        not set\n";
  39     print "   -O -O0 -O1 -O2 -O3 -Os               -O2\n";
  40     print " kernel\n";
  41     print "   --v86                                not set\n";
  42     print "   --smp                                not set\n";
  43     print "   --acpi                               not set\n";
  44     print " ported applications\n";
  45     print "   --yasm                               not set\n";
  46     print "   --binutils                           not set\n";
  47     print "   --bash                               not set\n";
  48     print "   --dash                               not set\n";
  49     print "   --nano                               not set\n";
  50     print "   --nasm                               not set\n";
  51     print "   --make                               not set\n";
  52     print " ported libraries\n";
  53     print "   --bzip2                              not set\n";
  54     print "   --freetype                           not set\n";
  55     print "   --libpng                             not set\n";
  56     print "   --zlib                               not set\n";
  57     exit(0);
  58   }
  59   elsif ($param eq "--dbg")
  60   {
  61     $debug = 1;
  62   }
  63   elsif ($param eq "--cpu")
  64   {
  65     my $param = shift;
  66     $CPU = $param;
  67   }
  68   elsif ($param eq "--arch")
  69   {
  70     my $param = shift;
  71     if (!($param eq "x86") && !($param eq "x86_64"))
  72     {
  73       print "Error: Unknown architecture\n";
  74       exit(0);
  75     }
  76     $arch = $param;
  77   }
  78   elsif ($param eq "--v86"){$v86 = 1;}
  79   elsif ($param eq "--elf-symbols"){$elfsymbols = 1;}
  80   elsif ($param eq "-O"){$optimize = "-O";}
  81   elsif ($param eq "-O0"){$optimize = "-O0";}
  82   elsif ($param eq "-O1"){$optimize = "-O1";}
  83   elsif ($param eq "-O2"){$optimize = "-O2";}
  84   elsif ($param eq "-O3"){$optimize = "-O3";}
  85   elsif ($param eq "-Os"){$optimize = "-Os";}
  86   elsif ($param eq "--smp"){$smp = 1;}
  87   elsif ($param eq "--acpi"){$acpi = 1;}
  88   elsif ($param eq "--yasm"){$yasm = 1;}
  89   elsif ($param eq "--binutils"){$binutils = 1;}
  90   elsif ($param eq "--nano"){$nano = 1;}
  91   elsif ($param eq "--nasm"){$nasm = 1;}
  92   elsif ($param eq "--make"){$make = 1;}
  93   elsif ($param eq "--bash"){$bash = 1;}
  94   elsif ($param eq "--dash"){$dash = 1;}
  95   elsif ($param eq "--bzip2"){$bzip2 = 1;}
  96   elsif ($param eq "--freetype"){$freetype = 1;}
  97   elsif ($param eq "--libpng"){$libpng = 1;}
  98   elsif ($param eq "--zlib"){$zlib = 1;}
  99   else
 100   {
 101     print "Error: Unknown configuration flag \"", $param, "\"\n";
 102     exit(-1);
 103   }
 104 }
 105
 106 if (!($arch eq "x86") && $v86 == 1)
 107 {
 108   print "Error: The flag --v86 is only valid for the x86 architecture.\n";
 109   exit(-1);
 110 }
 111
 112 if ($CPU eq "pentium" && $arch eq "x86_64")
 113 {
 114   $CPU = "nocona";
 115 }
 116
 117
 118
 119 open(config, '>', "Makefile.config");
 120
 121 # Root directory
 122 print config "ROOT_DIR= ", getcwd, "\n";
 123
 124 # Architecture
 125 print config "ARCH= ", $arch, "\n";
 126
 127 # Architecture - preprocessor define
 128 print config "ARCH_DEFINE= ";
 129 if ($arch eq "x86")
 130 {
 131   print config "-DX86";
 132 }
 133 if ($arch eq "x86_64")
 134 {
 135   print config "-DX86_64";
 136 }
 137 print config "\n";
 138
 139 # Kernel gcc flags
 140 print config "KERNEL_GCC_FLAGS= -march=$CPU $optimize";
 141 if ($arch eq "x86")
 142 {
 143   print config " -DARCH_NAMESPACE=x86 -DPLATFORM_NAMESPACE=x86_shared";
 144 }
 145 if ($arch eq "x86_64")
 146 {
 147   print config " -DARCH_NAMESPACE=x86_64 -DPLATFORM_NAMESPACE=x86_shared -fno-omit-frame-pointer -m64 -mno-red-zone -mno-sse -mcmodel=kernel";
 148 }
 149 if ($smp == 1)
 150 {
 151   print config " -D_LIGHTOS_SMP";
 152 }
 153 if ($v86 == 1)
 154 {
 155   print config " -D_LIGHTOS_V86";
 156 }
 157 if ($acpi == 1)
 158 {
 159   print config " -DACPI";
 160 }
 161 print config "\n";
 162
 163 # Library gcc flags
 164 print config "LIB_GCC_FLAGS= -march=$CPU $optimize ";
 165 if ($debug == 1)
 166 {
 167   print config " -DNDEBUG";
 168 }
 169 if ($arch eq "x86")
 170 {
 171   print config " -DARCH_NAMESPACE=x86 -DPLATFORM_NAMESPACE=x86_shared";
 172 }
 173 if ($arch eq "x86_64")
 174 {
 175   print config " -DARCH_NAMESPACE=x86_64 -DPLATFORM_NAMESPACE=x86_shared -fno-omit-frame-pointer -m64 -fpic";
 176 }
 177 if ($smp == 1)
 178 {
 179   print config " -D_LIGHTOS_SMP";
 180 }
 181 print config "\n";
 182
 183 # Application gcc flags
 184 print config "GCC_FLAGS= -march=$CPU $optimize ";
 185 if ($debug == 1)
 186 {
 187   print config " -DNDEBUG";
 188 }
 189 if ($arch eq "x86")
 190 {
 191   print config " -DARCH_NAMESPACE=x86 -DPLATFORM_NAMESPACE=x86_shared";
 192 }
 193 if ($arch eq "x86_64")
 194 {
 195   print config " -DARCH_NAMESPACE=x86_64 -DPLATFORM_NAMESPACE=x86_shared -fpic -fno-omit-frame-pointer -m64";
 196 }
 197 if ($smp == 1)
 198 {
 199   print config " -D_LIGHTOS_SMP";
 200 }
 201 print config "\n";
 202
 203 # Linker flags
 204 print config "LD_FLAGS= -z nocopyreloc ";
 205 if ($elfsymbols == 0)
 206 {
 207   print config " -s ";
 208 }
 209 print config "\n";
 210
 211 # Library includes
 212 # TODO: Fix this
 213 print config "ZLIB_INCLUDE= -I ", getcwd, "/lib/zlib/include\n";
 214 print config "BZIP2_INCLUDE= -I ", getcwd, "/lib/bzip2/include\n";
 215 print config "LIBPNG_INCLUDE= -I ", getcwd, "/lib/libpng/include\n";
 216 print config "FREETYPE_INCLUDE= -I ", getcwd, "/lib/freetype/include\n";
 217
 218 # Ported applications
 219 print config "PORTED_APPS= ";
 220 if ($yasm == 1){print config "yasm ";}
 221 if ($binutils == 1){print config "binutils ";}
 222 if ($nano == 1){print config "nano ";}
 223 if ($nasm == 1){print config "nasm ";}
 224 if ($make == 1){print config "make ";}
 225 if ($bash == 1){print config "bash ";}
 226 if ($dash == 1){print config "dash ";}
 227 print config "\n";
 228
 229 # Ported libraries
 230 print config "PORTED_LIBS= ";
 231 if ($bzip2 == 1){print config "bzip2 ";}
 232 if ($freetype == 1){print config "freetype ";}
 233 if ($zlib == 1){print config "zlib ";}
 234 if ($libpng == 1){print config "libpng ";}
 235 print config "\n";
 236
 237 # Binutils specific
 238 print config "BINUTILS_DEFAULT_VECTOR= ";
 239 if ($arch eq "x86")
 240 {
 241   print config "-DDEFAULT_VECTOR=bfd_elf32_i386_vec";
 242 }
 243 if ($arch eq "x86_64")
 244 {
 245   print config "-DDEFAULT_VECTOR=bfd_elf64_x86_64_vec";
 246 }
 247 print config "\n";
 248 print config "BINUTILS_SELECT_ARCHITECTURES= ";
 249 if ($arch eq "x86")
 250 {
 251   print config "-DSELECT_ARCHITECTURES='&bfd_i386_arch'";
 252 }
 253 if ($arch eq "x86_64")
 254 {
 255   print config "-DSELECT_ARCHITECTURES='&bfd_x86_64_arch'";
 256 }
 257 print config "\n";
 258 print config "BINUTILS_SELECT_VECS= -DSELECT_VECS='&bfd_elf32_i386_vec,&bfd_elf64_x86_64_vec,&bfd_elf64_little_generic_vec,&bfd_elf64_big_generic_vec,&bfd_elf32_little_generic_vec,&bfd_elf32_big_generic_vec'\n";
 259 print config "BINUTILS_HAVE_VECS= -DHAVE_bfd_elf64_x86_64_vec -DHAVE_bfd_elf32_i386_vec -DHAVE_bfd_elf64_little_generic_vec -DHAVE_bfd_elf64_big_generic_vec -DHAVE_bfd_elf32_little_generic_vec -DHAVE_bfd_elf32_big_generic_vec\n";
 260 print config "BINUTILS_DEFAULT_EMULATION= ";
 261 if ($arch eq "x86")
 262 {
 263   print config "-DDEFAULT_EMULATION='\"elf_x86_64\"'";
 264 }
 265 if ($arch eq "x86_64")
 266 {
 267   print config "-DDEFAULT_EMULATION='\"elf_i386\"'";
 268 }
 269 print config "\n";
 270 print config "BINUTILS_TARGET= ";
 271 if ($arch eq "x86")
 272 {
 273   print config "-DTARGET='\"x86_64-unknown-linux-gnu\"'";
 274 }
 275 if ($arch eq "x86_64")
 276 {
 277   print config "-DTARGET='\"x86_64-unknown-linux-gnu\"'";
 278 }
 279 print config "\n";
 280
 281 open(asmconfig, '>', "Makefile.asm.config");
 282 if ($v86 == 1)
 283 {
 284   print asmconfig "#define _LIGHTOS_V86\n"
 285 }
 286 if ($smp == 1)
 287 {
 288   print asmconfig "#define _LIGHTOS_SMP\n"
 289 }
 290
 291 `/bin/bash scripts/link.sh $arch`;
 292 `/bin/bash scripts/tmpdir.sh $arch create`;
 293
 294 exit(0);