don't crash on bad timing
[picodrive.git] / configure
CommitLineData
d4d62665 1#!/bin/sh
2# some elements originated from qemu configure
3set -e
4
5TMPC="/tmp/pcsx-conf-${RANDOM}-$$-${RANDOM}.c"
6TMPO="/tmp/pcsx-conf-${RANDOM}-$$-${RANDOM}.o"
7TMPB="/tmp/pcsx-conf-${RANDOM}-$$-${RANDOM}"
8trap "rm -f $TMPC $TMPO $TMPB" EXIT INT QUIT TERM
9rm -f config.log
10
11compile_object()
12{
13 c="$CC $CFLAGS -c $TMPC -o $TMPO $@"
14 echo $c >> config.log
15 $c >> config.log 2>&1
16}
17
18compile_binary()
19{
20 c="$CC $CFLAGS $TMPC -o $TMPB $LDFLAGS $MAIN_LDLIBS $@"
21 echo $c >> config.log
22 $c >> config.log 2>&1
23}
24
25check_define()
26{
27 $CC -E -dD $CFLAGS pico/arm_features.h | grep -q $1 || return 1
28 return 0
29}
30
31# setting options to "yes" or "no" will make that choice default,
32# "" means "autodetect".
33
34platform_list="generic pandora"
35platform="generic"
36sound_driver_list="oss alsa sdl"
37sound_drivers=""
38have_armv5=""
39have_armv6=""
40have_armv7=""
41have_arm_neon=""
fc11dd05 42have_libavcodec=""
d4d62665 43enable_dynarec="yes"
44need_sdl="no"
45need_xlib="no"
46# these are for known platforms
47optimize_cortexa8="no"
48optimize_arm926ej="no"
49
50# hardcoded stuff
51CC="${CC-${CROSS_COMPILE}gcc}"
52CXX="${CXX-${CROSS_COMPILE}g++}"
53AS="${AS-${CROSS_COMPILE}as}"
54MAIN_LDLIBS="$LDLIBS -lm"
55config_mak="config.mak"
56
57fail()
58{
59 echo "$@"
60 exit 1
61}
62
63# call during arg parsing, so that cmd line can override platform defaults
64set_platform()
65{
66 platform=$1
67 case "$platform" in
68 generic)
69 ;;
70 pandora)
71 sound_drivers="oss alsa"
72 optimize_cortexa8="yes"
73 have_arm_neon="yes"
74 ;;
75 *)
76 fail "unsupported platform: $platform"
77 ;;
78 esac
79}
80
81for opt do
82 optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'` || true
83 case "$opt" in
84 --help|-h) show_help="yes"
85 ;;
86 --platform=*) set_platform "$optarg"
87 ;;
88 --sound-drivers=*) sound_drivers="$optarg"
89 ;;
90 --enable-neon) have_arm_neon="yes"
91 ;;
92 --disable-neon) have_arm_neon="no"
93 ;;
94 --disable-dynarec) enable_dynarec="no"
95 ;;
96 *) echo "ERROR: unknown option $opt"; show_help="yes"
97 ;;
98 esac
99done
100
101if [ "$show_help" = "yes" ]; then
102 echo "options:"
103 echo " --help print this message"
104 echo " --platform=NAME target platform [$platform]"
105 echo " available: $platform_list"
106 echo " --sound-drivers=LIST sound output drivers [guessed]"
107 echo " available: $sound_driver_list"
108 echo " --enable-neon"
109 echo " --disable-neon enable/disable ARM NEON optimizations [guessed]"
110 echo " --disable-dynarec disable dynamic recompiler"
111 echo " (dynarec is only available and enabled on ARM)"
112 echo "influential environment variables:"
113 echo " CROSS_COMPILE CC CXX AS CFLAGS ASFLAGS LDFLAGS LDLIBS"
114 exit 1
115fi
116
117# validate selections
118if [ "x$sound_drivers" != "x" ]; then
119 for d in $sound_drivers; do
120 if ! echo $sound_driver_list | grep -q "\<$d\>"; then
121 fail "unsupported sound driver: $sound_driver"
122 fi
123 done
124fi
125
720bfc5d 126if ! test -f "platform/libpicofe/README"; then
127 fail "libpicofe is missing, please run 'git submodule update --init'"
d4d62665 128fi
129
130#if [ "$need_warm" = "yes" ]; then
131# if ! test -f "frontend/warm/README"; then
132# fail "wARM is missing, please run 'git submodule init && git submodule update'"
133# fi
134#fi
135
136# basic compiler test
137cat > $TMPC <<EOF
138int main(void) { return 0; }
139EOF
140if ! compile_binary; then
141 fail "compiler test failed, please check config.log"
142fi
143
144if [ -z "$ARCH" ]; then
145 ARCH=`$CC -dumpmachine | awk -F '-' '{print $1}'`
146fi
147
148case "$ARCH" in
149arm*)
150 # ARM stuff
151 ARCH="arm"
152
153 if [ "$optimize_cortexa8" = "yes" ]; then
154 CFLAGS="$CFLAGS -mcpu=cortex-a8 -mtune=cortex-a8"
155 ASFLAGS="$ASFLAGS -mcpu=cortex-a8"
156 fi
157 if [ "$optimize_arm926ej" = "yes" ]; then
158 CFLAGS="$CFLAGS -mcpu=arm926ej-s -mtune=arm926ej-s"
159 ASFLAGS="$ASFLAGS -mcpu=arm926ej-s -mfloat-abi=softfp"
160 fi
161
162 if [ "x$have_arm_neon" = "x" ]; then
163 # detect NEON from user-supplied cflags to enable asm code
164 have_arm_neon=`check_define __ARM_NEON__ && echo yes` || true
165 fi
166 if [ "x$have_armv7" = "x" ]; then
167 if check_define HAVE_ARMV7; then
168 have_armv7="yes"
169 have_armv6="yes"
170 have_armv5="yes"
171 fi
172 fi
173 if [ "x$have_armv6" = "x" ]; then
174 if check_define HAVE_ARMV6; then
175 have_armv6="yes"
176 have_armv5="yes"
177 fi
178 fi
179 if [ "x$have_armv5" = "x" ]; then
180 have_armv5=`check_define HAVE_ARMV5 && echo yes` || true
181 fi
182
183 # automatically set mfpu and mfloat-abi if they are not set
184 if [ "$have_arm_neon" = "yes" ]; then
185 fpu="neon"
186 elif [ "$have_armv6" = "yes" ]; then
187 fpu="vfp"
188 fi
189 if [ "x$fpu" != "x" ]; then
190 echo "$CFLAGS" | grep -q -- '-mfpu=' || CFLAGS="$CFLAGS -mfpu=$fpu"
191 echo "$ASFLAGS" | grep -q -- '-mfpu=' || ASFLAGS="$ASFLAGS -mfpu=$fpu"
192 floatabi_set_by_gcc=`$CC -v 2>&1 | grep -q -- --with-float= && echo yes` || true
193 if [ "$floatabi_set_by_gcc" != "yes" ]; then
194 echo "$CFLAGS" | grep -q -- '-mfloat-abi=' || CFLAGS="$CFLAGS -mfloat-abi=softfp"
195 echo "$ASFLAGS" | grep -q -- '-mfloat-abi=' || ASFLAGS="$ASFLAGS -mfloat-abi=softfp"
196 fi
197 fi
198
199 # must disable thumb as recompiler can't handle it
200 if check_define __thumb__; then
201 CFLAGS="$CFLAGS -marm"
202 fi
203
204 # warn about common mistakes
205 if [ "$have_armv5" != "yes" ]; then
206 if ! echo "$CFLAGS" | grep -q -- '-mcpu=\|-march='; then
207 echo "Warning: compiling for ARMv4, is that really what you want?"
208 echo "You probably should specify -mcpu= or -march= like this:"
209 echo " CFLAGS=-march=armv6 ./configure ..."
210 fi
211 fi
212 if [ "$have_arm_neon" = "yes" -a "$have_armv7" != "yes" ]; then
213 echo "Warning: compiling for NEON, but not ARMv7?"
214 echo "You probably want to specify -mcpu= or -march= like this:"
215 echo " CFLAGS=-march=armv7-a ./configure ..."
216 fi
217 ;;
218*)
219 # dynarec only available on ARM
220 enable_dynarec="no"
221 ;;
222esac
223
224case "$platform" in
225generic)
226 need_sdl="yes"
227 ;;
228esac
229
230# header/library presence tests
231check_zlib()
232{
233 cat > $TMPC <<EOF
234 #include <zlib.h>
235 int main(void) { uncompress(0, 0, 0, 0); }
236EOF
237 compile_binary
238}
239
240check_libpng()
241{
242 cat > $TMPC <<EOF
243 #include <png.h>
244 void main() { png_init_io(0, 0); }
245EOF
246 compile_binary
247}
248
249check_oss()
250{
251 cat > $TMPC <<EOF
252 #include <sys/soundcard.h>
253 #include <sys/ioctl.h>
254 void main() { int a=0; ioctl(0, SNDCTL_DSP_SETFMT, &a); }
255EOF
256 compile_binary
257}
258
259check_alsa()
260{
261 cat > $TMPC <<EOF
262 #include <alsa/asoundlib.h>
263 void main() { snd_pcm_open(0, 0, 0, 0); }
264EOF
265 compile_binary "$@"
266}
267
268check_sdl()
269{
270 cat > $TMPC <<EOF
271 #include <SDL.h>
272 void main() { SDL_OpenAudio(0, 0); }
273EOF
274 compile_binary "$@"
275}
276
fc11dd05 277check_libavcodec()
278{
279 cat > $TMPC <<EOF
280 #include <libavcodec/avcodec.h>
281 void main() { avcodec_decode_audio3(0, 0, 0, 0); }
282EOF
986d60fc 283 compile_object "$@"
fc11dd05 284}
285
d4d62665 286#MAIN_LDLIBS="$MAIN_LDLIBS -lz"
287#check_zlib || fail "please install zlib (libz-dev)"
288
289MAIN_LDLIBS="-lpng $MAIN_LDLIBS"
290check_libpng || fail "please install libpng (libpng-dev)"
291
fc11dd05 292if check_libavcodec; then
293 have_libavcodec="yes"
986d60fc 294 # add -ldl if needed
295 case "$MAIN_LDLIBS" in
296 *"-ldl"*) ;;
297 *) MAIN_LDLIBS="-ldl $MAIN_LDLIBS" ;;
298 esac
fc11dd05 299fi
300
d4d62665 301# find what audio support we can compile
302if [ "x$sound_drivers" = "x" ]; then
303 if check_oss; then sound_drivers="$sound_drivers oss"; fi
304 if check_alsa -lasound; then
305 sound_drivers="$sound_drivers alsa"
306 MAIN_LDLIBS="-lasound $MAIN_LDLIBS"
307 fi
308 if [ "$need_sdl" = "yes" ] || check_sdl `sdl-config --cflags --libs`; then
309 sound_drivers="$sound_drivers sdl"
310 need_sdl="yes"
311 fi
312else
313 if echo $sound_drivers | grep -q "\<oss\>"; then
314 check_oss || fail "oss support is missing"
315 fi
316 if echo $sound_drivers | grep -q "\<alsa\>"; then
317 MAIN_LDLIBS="-lasound $MAIN_LDLIBS"
318 check_alsa || fail "please install libasound2-dev"
319 fi
320fi
321
322if [ "$need_sdl" = "yes" ]; then
323 which sdl-config > /dev/null || \
324 fail "sdl-config is missing; please install libsdl (libsdl1.2-dev)"
325 CFLAGS="$CFLAGS `sdl-config --cflags`"
326 MAIN_LDLIBS="`sdl-config --libs` $MAIN_LDLIBS"
327 check_sdl || fail "please install libsdl (libsdl1.2-dev)"
328fi
329
330cat > $TMPC <<EOF
331void test(void *f, void *d) { fread(d, 1, 1, f); }
332EOF
333if compile_object -Wno-unused-result; then
334 CFLAGS="$CFLAGS -Wno-unused-result"
335fi
336
337# set things that failed to autodetect to "no"
338test "x$have_armv6" != "x" || have_armv6="no"
339test "x$have_armv7" != "x" || have_armv7="no"
340test "x$have_arm_neon" != "x" || have_arm_neon="no"
fc11dd05 341test "x$have_libavcodec" != "x" || have_libavcodec="no"
d4d62665 342
343echo "architecture $ARCH"
344echo "platform $platform"
345echo "sound drivers $sound_drivers"
346echo "C compiler $CC"
347echo "C compiler flags $CFLAGS"
348echo "libraries $MAIN_LDLIBS"
349echo "linker flags $LDFLAGS"
fc11dd05 350echo "libavcodec (mp3) $have_libavcodec"
d4d62665 351echo "enable dynarec $enable_dynarec"
352# echo "ARMv7 optimizations $have_armv7"
353# echo "enable ARM NEON $have_arm_neon"
354
355echo "# Automatically generated by configure" > $config_mak
356printf "# Configured with:" >> $config_mak
357printf " '%s'" "$0" "$@" >> $config_mak
358echo >> $config_mak
359
360echo "CC = $CC" >> $config_mak
361echo "CXX = $CXX" >> $config_mak
362echo "AS = $AS" >> $config_mak
363echo "CFLAGS += $CFLAGS" >> $config_mak
364echo "ASFLAGS += $ASFLAGS" >> $config_mak
365echo "LDFLAGS += $LDFLAGS" >> $config_mak
366echo "LDLIBS += $MAIN_LDLIBS" >> $config_mak
367echo >> $config_mak
368
369echo "ARCH = $ARCH" >> $config_mak
370echo "PLATFORM = $platform" >> $config_mak
371echo "SOUND_DRIVERS = $sound_drivers" >> $config_mak
fc11dd05 372if [ "$have_libavcodec" = "yes" ]; then
373 echo "HAVE_LIBAVCODEC = 1" >> $config_mak
374fi
d4d62665 375if [ "$have_arm_neon" = "yes" ]; then
376 echo "HAVE_NEON = 1" >> $config_mak
377fi
378if [ "$enable_dynarec" = "yes" ]; then
379 echo "USE_DYNAREC = 1" >> $config_mak
380fi
381
382# use pandora's skin (for now)
383test -e skin || ln -s platform/pandora/skin skin
384
385# vim:shiftwidth=2:expandtab