configure

   1 #!/bin/sh
   2 # some elements originated from qemu configure
   3 set -e
   4
   5 TMPC="/tmp/picodrive-conf-${RANDOM}-$$-${RANDOM}.c"
   6 TMPO="/tmp/picodrive-conf-${RANDOM}-$$-${RANDOM}.o"
   7 TMPB="/tmp/picodrive-conf-${RANDOM}-$$-${RANDOM}"
   8 trap "rm -f $TMPC $TMPO $TMPB" EXIT INT QUIT TERM
   9 rm -f config.log
  10
  11 compile_object()
  12 {
  13   c="$CC $CFLAGS -c $TMPC -o $TMPO $@"
  14   echo $c >> config.log
  15   $c >> config.log 2>&1
  16 }
  17
  18 compile_binary()
  19 {
  20   c="$CC $CFLAGS $TMPC -o $TMPB $LDFLAGS $@"
  21   echo $c >> config.log
  22   $c >> config.log 2>&1
  23 }
  24
  25 check_define()
  26 {
  27   $CC -E -dD $CFLAGS pico/arm_features.h | grep -q $1 || return 1
  28   return 0
  29 }
  30
  31 # setting options to "yes" or "no" will make that choice default,
  32 # "" means "autodetect".
  33
  34 platform_list="generic pandora gp2x opendingux rpi1 rpi2"
  35 platform="generic"
  36 sound_driver_list="oss alsa sdl"
  37 sound_drivers=""
  38 have_armv5=""
  39 have_armv6=""
  40 have_armv7=""
  41 have_arm_neon=""
  42 have_libavcodec=""
  43 need_sdl="no"
  44 need_xlib="no"
  45 # these are for known platforms
  46 optimize_cortexa8="no"
  47 optimize_cortexa7="no"
  48 optimize_arm1176jzf="no"
  49 optimize_arm926ej="no"
  50 optimize_arm920="no"
  51
  52 # hardcoded stuff
  53 CC="${CC-${CROSS_COMPILE}gcc}"
  54 CXX="${CXX-${CROSS_COMPILE}g++}"
  55 AS="${AS-${CROSS_COMPILE}as}"
  56 STRIP="${STRIP-${CROSS_COMPILE}strip}"
  57 test -n "$SDL_CONFIG" || SDL_CONFIG="`$CC --print-sysroot 2> /dev/null || true`/usr/bin/sdl-config"
  58 MAIN_LDLIBS="$LDLIBS -lm"
  59 config_mak="config.mak"
  60
  61 fail()
  62 {
  63   echo "$@"
  64   exit 1
  65 }
  66
  67 # call during arg parsing, so that cmd line can override platform defaults
  68 set_platform()
  69 {
  70   platform=$1
  71   case "$platform" in
  72   rpi1)
  73     optimize_arm1176jzf="yes"
  74     ;;
  75   rpi2)
  76     optimize_cortexa7="yes"
  77     have_arm_neon="yes"
  78     ;;
  79   generic)
  80     ;;
  81   opendingux)
  82     sound_drivers="sdl"
  83     ;;
  84   pandora)
  85     sound_drivers="oss alsa"
  86     optimize_cortexa8="yes"
  87     have_arm_neon="yes"
  88     ;;
  89   gp2x)
  90     sound_drivers="oss"
  91     optimize_arm920="yes"
  92     CFLAGS="$CFLAGS -D__GP2X__"
  93     if [ "$CROSS_COMPILE" = "arm-linux-" ]; then
  94       # still using static, dynamic linking slows Wiz 1-10%
  95       # also libm on F100 is not compatible
  96       MAIN_LDLIBS="$MAIN_LDLIBS -static"
  97     fi
  98     ;;
  99   *)
 100     fail "unsupported platform: $platform"
 101     ;;
 102   esac
 103 }
 104
 105 for opt do
 106   optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'` || true
 107   case "$opt" in
 108   --help|-h) show_help="yes"
 109   ;;
 110   --platform=*) set_platform "$optarg"
 111   ;;
 112   --sound-drivers=*) sound_drivers="$optarg"
 113   ;;
 114   *) echo "ERROR: unknown option $opt"; show_help="yes"
 115   ;;
 116   esac
 117 done
 118
 119 if [ "$show_help" = "yes" ]; then
 120   echo "options:"
 121   echo "  --help                   print this message"
 122   echo "  --platform=NAME          target platform [$platform]"
 123   echo "                           available: $platform_list"
 124   echo "  --sound-drivers=LIST     sound output drivers [guessed]"
 125   echo "                           available: $sound_driver_list"
 126   echo "influential environment variables:"
 127   echo "  CROSS_COMPILE CC CXX AS STRIP CFLAGS ASFLAGS LDFLAGS LDLIBS"
 128   exit 1
 129 fi
 130
 131 # validate selections
 132 if [ "x$sound_drivers" != "x" ]; then
 133   for d in $sound_drivers; do
 134     if ! echo $sound_driver_list | grep -q "\<$d\>"; then
 135       fail "unsupported sound driver: $sound_driver"
 136     fi
 137   done
 138 fi
 139
 140 if ! test -f "platform/libpicofe/README"; then
 141   fail "libpicofe is missing, please run 'git submodule update --init'"
 142 fi
 143
 144 #if [ "$need_warm" = "yes" ]; then
 145 #  if ! test -f "frontend/warm/README"; then
 146 #    fail "wARM is missing, please run 'git submodule init && git submodule update'"
 147 #  fi
 148 #fi
 149
 150 # basic compiler test
 151 cat > $TMPC <<EOF
 152 int main(void) { return 0; }
 153 EOF
 154 if ! compile_binary; then
 155   fail "compiler test failed, please check config.log"
 156 fi
 157
 158 if [ -z "$ARCH" ]; then
 159   ARCH=`$CC -dumpmachine | awk -F '-' '{print $1}'`
 160 fi
 161
 162 case "$ARCH" in
 163 arm*)
 164   # ARM stuff
 165   ARCH="arm"
 166
 167   if [ "$optimize_cortexa8" = "yes" ]; then
 168     CFLAGS="$CFLAGS -mcpu=cortex-a8 -mtune=cortex-a8"
 169     ASFLAGS="$ASFLAGS -mcpu=cortex-a8"
 170   fi
 171   if [ "$optimize_cortexa7" = "yes" ]; then
 172     CFLAGS="$CFLAGS -mcpu=cortex-a7"
 173     ASFLAGS="$ASFLAGS -mcpu=cortex-a7"
 174   fi
 175   if [ "$optimize_arm1176jzf" = "yes" ]; then
 176     CFLAGS="$CFLAGS -mcpu=arm1176jzf-s -mfloat-abi=hard"
 177     ASFLAGS="$ASFLAGS -mcpu=arm1176jzf-s -mfloat-abi=hard"
 178   fi
 179   if [ "$optimize_arm926ej" = "yes" ]; then
 180     CFLAGS="$CFLAGS -mcpu=arm926ej-s -mtune=arm926ej-s"
 181     ASFLAGS="$ASFLAGS -mcpu=arm926ej-s -mfloat-abi=softfp"
 182   fi
 183   if [ "$optimize_arm920" = "yes" ]; then
 184     CFLAGS="$CFLAGS -mcpu=arm920t -mtune=arm920t"
 185     ASFLAGS="$ASFLAGS -mcpu=arm920t -mfloat-abi=soft"
 186   fi
 187
 188   if [ "x$have_arm_neon" = "x" ]; then
 189     # detect NEON from user-supplied cflags to enable asm code
 190     have_arm_neon=`check_define __ARM_NEON__ && echo yes` || true
 191   fi
 192   if [ "x$have_armv7" = "x" ]; then
 193     if check_define HAVE_ARMV7; then
 194       have_armv7="yes"
 195       have_armv6="yes"
 196       have_armv5="yes"
 197     fi
 198   fi
 199   if [ "x$have_armv6" = "x" ]; then
 200     if check_define HAVE_ARMV6; then
 201       have_armv6="yes"
 202       have_armv5="yes"
 203     fi
 204   fi
 205   if [ "x$have_armv5" = "x" ]; then
 206     have_armv5=`check_define HAVE_ARMV5 && echo yes` || true
 207   fi
 208
 209   # automatically set mfpu and mfloat-abi if they are not set
 210   if [ "$have_arm_neon" = "yes" ]; then
 211     fpu="neon"
 212   elif [ "$have_armv6" = "yes" ]; then
 213     fpu="vfp"
 214   fi
 215   if [ "x$fpu" != "x" ]; then
 216     echo "$CFLAGS" | grep -q -- '-mfpu=' || CFLAGS="$CFLAGS -mfpu=$fpu"
 217     echo "$ASFLAGS" | grep -q -- '-mfpu=' || ASFLAGS="$ASFLAGS -mfpu=$fpu"
 218     floatabi_set_by_gcc=`$CC -v 2>&1 | grep -q -- --with-float= && echo yes` || true
 219     if [ "$floatabi_set_by_gcc" != "yes" ]; then
 220       echo "$CFLAGS" | grep -q -- '-mfloat-abi=' || CFLAGS="$CFLAGS -mfloat-abi=softfp"
 221       echo "$ASFLAGS" | grep -q -- '-mfloat-abi=' || ASFLAGS="$ASFLAGS -mfloat-abi=softfp"
 222     fi
 223   fi
 224
 225   # must disable thumb as recompiler can't handle it
 226   if check_define __thumb__; then
 227     CFLAGS="$CFLAGS -marm"
 228   fi
 229
 230   # warn about common mistakes
 231   if [ "$platform" != "gp2x" -a "$have_armv5" != "yes" ]; then
 232     if ! echo "$CFLAGS" | grep -q -- '-mcpu=\|-march='; then
 233       echo "Warning: compiling for ARMv4, is that really what you want?"
 234       echo "You probably should specify -mcpu= or -march= like this:"
 235       echo "  CFLAGS=-march=armv6 ./configure ..."
 236     fi
 237   fi
 238   if [ "$have_arm_neon" = "yes" -a "$have_armv7" != "yes" ]; then
 239     echo "Warning: compiling for NEON, but not ARMv7?"
 240     echo "You probably want to specify -mcpu= or -march= like this:"
 241     echo "  CFLAGS=-march=armv7-a ./configure ..."
 242   fi
 243   ;;
 244 *)
 245   ;;
 246 esac
 247
 248 case "$platform" in
 249 rpi1 | rpi2 | generic | opendingux)
 250   need_sdl="yes"
 251   ;;
 252 esac
 253
 254 # header/library presence tests
 255 check_zlib()
 256 {
 257   cat > $TMPC <<EOF
 258   #include <zlib.h>
 259   int main(void) { uncompress(0, 0, 0, 0); }
 260 EOF
 261   compile_binary "$@"
 262 }
 263
 264 check_libpng()
 265 {
 266   cat > $TMPC <<EOF
 267   #include <png.h>
 268   void main() { png_init_io(0, 0); }
 269 EOF
 270 #  compile_binary
 271   compile_object
 272 }
 273
 274 check_oss()
 275 {
 276   cat > $TMPC <<EOF
 277   #include <sys/soundcard.h>
 278   #include <sys/ioctl.h>
 279   void main() { int a=0; ioctl(0, SNDCTL_DSP_SETFMT, &a); }
 280 EOF
 281   compile_binary
 282 }
 283
 284 check_alsa()
 285 {
 286   cat > $TMPC <<EOF
 287   #include <alsa/asoundlib.h>
 288   void main() { snd_pcm_open(0, 0, 0, 0); }
 289 EOF
 290   compile_binary "$@"
 291 }
 292
 293 check_sdl()
 294 {
 295   cat > $TMPC <<EOF
 296   #include <SDL.h>
 297   void main() { SDL_OpenAudio(0, 0); }
 298 EOF
 299   compile_binary "$@"
 300 }
 301
 302 check_libavcodec()
 303 {
 304   cat > $TMPC <<EOF
 305   #include <libavcodec/avcodec.h>
 306   void main() { avcodec_decode_audio3(0, 0, 0, 0); }
 307 EOF
 308   compile_object "$@"
 309 }
 310
 311 MAIN_LDLIBS="$MAIN_LDLIBS -lz"
 312 check_zlib -lz || fail "please install zlib (libz-dev)"
 313
 314 MAIN_LDLIBS="-lpng $MAIN_LDLIBS"
 315 check_libpng || fail "please install libpng (libpng-dev)"
 316
 317 if check_libavcodec; then
 318   have_libavcodec="yes"
 319   # add -ldl if needed
 320   case "$MAIN_LDLIBS" in
 321     *"-ldl"*) ;;
 322     *) MAIN_LDLIBS="-ldl $MAIN_LDLIBS" ;;
 323   esac
 324 fi
 325
 326 # find what audio support we can compile
 327 if [ "x$sound_drivers" = "x" ]; then
 328   if check_oss; then sound_drivers="$sound_drivers oss"; fi
 329   if check_alsa -lasound; then
 330     sound_drivers="$sound_drivers alsa"
 331     MAIN_LDLIBS="-lasound $MAIN_LDLIBS"
 332   fi
 333   if [ "$need_sdl" = "yes" ] || check_sdl `$SDL_CONFIG --cflags --libs`; then
 334     sound_drivers="$sound_drivers sdl"
 335     need_sdl="yes"
 336   fi
 337 else
 338   if echo $sound_drivers | grep -q "\<oss\>"; then
 339     check_oss || fail "oss support is missing"
 340   fi
 341   if echo $sound_drivers | grep -q "\<alsa\>"; then
 342     MAIN_LDLIBS="-lasound $MAIN_LDLIBS"
 343     check_alsa -lasound || fail "please install libasound2-dev"
 344   fi
 345 fi
 346
 347 if [ "$need_sdl" = "yes" ]; then
 348   [ -x "$SDL_CONFIG" ] || \
 349     fail "sdl-config is missing; please install libsdl (libsdl1.2-dev)"
 350   CFLAGS="$CFLAGS `$SDL_CONFIG --cflags`"
 351   MAIN_LDLIBS="`$SDL_CONFIG --libs` $MAIN_LDLIBS"
 352   check_sdl `$SDL_CONFIG --libs` || fail "please install libsdl (libsdl1.2-dev)"
 353 fi
 354
 355 cat > $TMPC <<EOF
 356 void test(void *f, void *d) { fread(d, 1, 1, f); }
 357 EOF
 358 if compile_object -Wno-unused-result; then
 359   CFLAGS="$CFLAGS -Wno-unused-result"
 360 fi
 361
 362 # set things that failed to autodetect to "no"
 363 test "x$have_armv6" != "x" || have_armv6="no"
 364 test "x$have_armv7" != "x" || have_armv7="no"
 365 test "x$have_libavcodec" != "x" || have_libavcodec="no"
 366
 367 echo "architecture        $ARCH"
 368 echo "platform            $platform"
 369 echo "sound drivers       $sound_drivers"
 370 echo "C compiler          $CC"
 371 echo "C compiler flags    $CFLAGS"
 372 echo "libraries           $MAIN_LDLIBS"
 373 echo "linker flags        $LDFLAGS"
 374 echo "libavcodec (mp3)    $have_libavcodec"
 375 # echo "ARMv7 optimizations $have_armv7"
 376
 377 echo "# Automatically generated by configure" > $config_mak
 378 printf "# Configured with:" >> $config_mak
 379 printf " '%s'" "$0" "$@" >> $config_mak
 380 echo >> $config_mak
 381
 382 echo "CC = $CC" >> $config_mak
 383 echo "CXX = $CXX" >> $config_mak
 384 echo "AS = $AS" >> $config_mak
 385 echo "STRIP = $STRIP" >> $config_mak
 386 echo "CFLAGS += $CFLAGS" >> $config_mak
 387 echo "ASFLAGS += $ASFLAGS" >> $config_mak
 388 echo "LDFLAGS += $LDFLAGS" >> $config_mak
 389 echo "LDLIBS += $MAIN_LDLIBS" >> $config_mak
 390 echo >> $config_mak
 391
 392 echo "ARCH = $ARCH" >> $config_mak
 393 echo "PLATFORM = $platform" >> $config_mak
 394 echo "SOUND_DRIVERS = $sound_drivers" >> $config_mak
 395 if [ "$have_libavcodec" = "yes" ]; then
 396   echo "HAVE_LIBAVCODEC = 1" >> $config_mak
 397 fi
 398
 399 # GP2X toolchains are too old for UAL asm,
 400 # so add this here to not litter main Makefile
 401 if [ "$platform" = "g1p2x" ]; then
 402   echo >> $config_mak
 403   echo "%.o: %.S" >> $config_mak
 404   echo "        $(CC) $(CFLAGS) -E -c $^ -o /tmp/$(notdir $@).s" >> $config_mak
 405   echo "        $(AS) $(ASFLAGS) /tmp/$(notdir $@).s -o $@" >> $config_mak
 406 fi
 407
 408 # use pandora's skin (for now)
 409 test -e skin || ln -s platform/pandora/skin skin
 410
 411 # vim:shiftwidth=2:expandtab