Merge "Remove stack shadowing for x86-64"
[profile/ivi/libvpx.git] / configure
1 #!/bin/bash
2 ##
3 ##  configure
4 ##
5 ##  This script is the front-end to the build system. It provides a similar
6 ##  interface to standard configure scripts with some extra bits for dealing
7 ##  with toolchains that differ from the standard POSIX interface and
8 ##  for extracting subsets of the source tree. In theory, reusable parts
9 ##  of this script were intended to live in build/make/configure.sh,
10 ##  but in practice, the line is pretty blurry.
11 ##
12 ##  This build system is based in part on the FFmpeg configure script.
13 ##
14
15 #source_path="`dirname \"$0\"`"
16 source_path=${0%/*}
17 . "${source_path}/build/make/configure.sh"
18
19 show_help(){
20     show_help_pre
21     cat << EOF
22 Advanced options:
23   ${toggle_libs}                  don't build libraries
24   ${toggle_examples}              don't build examples
25   --libc=PATH                     path to alternate libc
26   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
27   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
28                                   supported by hardware [auto]
29   ${toggle_codec_srcs}            in/exclude codec library source code
30   ${toggle_debug_libs}            in/exclude debug version of libraries
31   ${toggle_md5}                   support for output of checksum data
32   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
33   ${toggle_vp8}                   VP8 codec support
34   ${toggle_psnr}                  output of PSNR data, if supported (encoders)
35   ${toggle_mem_tracker}           track memory usage
36   ${toggle_postproc}              postprocessing
37   ${toggle_multithread}           multithreaded encoding and decoding.
38   ${toggle_spatial_resampling}    spatial sampling (scaling) support
39   ${toggle_realtime_only}         enable this option while building for real-time encoding
40   ${toggle_runtime_cpu_detect}    runtime cpu detection
41   ${toggle_shared}                shared library support
42   ${toggle_small}                 favor smaller size over speed
43   ${toggle_arm_asm_detok}         assembly version of the detokenizer (ARM platforms only)
44   ${toggle_postproc_visualizer}   macro block / block level visualizers
45
46 Codecs:
47   Codecs can be selectively enabled or disabled individually, or by family:
48       --disable-<codec>
49   is equivalent to:
50       --disable-<codec>-encoder
51       --disable-<codec>-decoder
52
53   Codecs available in this distribution:
54 EOF
55 #restore editor state '
56
57     local family;
58     local last_family;
59     local c;
60     local str;
61     for c in ${CODECS}; do
62         family=${c%_*}
63         if [ "${family}" != "${last_family}" ]; then
64             [ -z "${str}" ] || echo "${str}"
65             str="$(printf '    %10s:' ${family})"
66         fi
67         str="${str} $(printf '%10s' ${c#*_})"
68         last_family=${family}
69     done
70     echo "${str}"
71     show_help_post
72 }
73
74 ##
75 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
76 ##
77
78 # all_platforms is a list of all supported target platforms. Maintain
79 # alphabetically by architecture, generic-gnu last.
80 all_platforms="${all_platforms} armv5te-linux-rvct"
81 all_platforms="${all_platforms} armv5te-linux-gcc"
82 all_platforms="${all_platforms} armv5te-symbian-gcc"
83 all_platforms="${all_platforms} armv5te-wince-vs8"
84 all_platforms="${all_platforms} armv6-darwin-gcc"
85 all_platforms="${all_platforms} armv6-linux-rvct"
86 all_platforms="${all_platforms} armv6-linux-gcc"
87 all_platforms="${all_platforms} armv6-symbian-gcc"
88 all_platforms="${all_platforms} armv6-wince-vs8"
89 all_platforms="${all_platforms} iwmmxt-linux-rvct"
90 all_platforms="${all_platforms} iwmmxt-linux-gcc"
91 all_platforms="${all_platforms} iwmmxt-wince-vs8"
92 all_platforms="${all_platforms} iwmmxt2-linux-rvct"
93 all_platforms="${all_platforms} iwmmxt2-linux-gcc"
94 all_platforms="${all_platforms} iwmmxt2-wince-vs8"
95 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
96 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
97 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
98 all_platforms="${all_platforms} mips32-linux-gcc"
99 all_platforms="${all_platforms} ppc32-darwin8-gcc"
100 all_platforms="${all_platforms} ppc32-darwin9-gcc"
101 all_platforms="${all_platforms} ppc32-linux-gcc"
102 all_platforms="${all_platforms} ppc64-darwin8-gcc"
103 all_platforms="${all_platforms} ppc64-darwin9-gcc"
104 all_platforms="${all_platforms} ppc64-linux-gcc"
105 all_platforms="${all_platforms} sparc-solaris-gcc"
106 all_platforms="${all_platforms} x86-darwin8-gcc"
107 all_platforms="${all_platforms} x86-darwin8-icc"
108 all_platforms="${all_platforms} x86-darwin9-gcc"
109 all_platforms="${all_platforms} x86-darwin9-icc"
110 all_platforms="${all_platforms} x86-linux-gcc"
111 all_platforms="${all_platforms} x86-linux-icc"
112 all_platforms="${all_platforms} x86-solaris-gcc"
113 all_platforms="${all_platforms} x86-win32-gcc"
114 all_platforms="${all_platforms} x86-win32-vs7"
115 all_platforms="${all_platforms} x86-win32-vs8"
116 all_platforms="${all_platforms} x86-win32-vs9"
117 all_platforms="${all_platforms} x86_64-darwin9-gcc"
118 all_platforms="${all_platforms} x86_64-linux-gcc"
119 all_platforms="${all_platforms} x86_64-linux-icc"
120 all_platforms="${all_platforms} x86_64-solaris-gcc"
121 all_platforms="${all_platforms} x86_64-win64-vs8"
122 all_platforms="${all_platforms} x86_64-win64-vs9"
123 all_platforms="${all_platforms} universal-darwin8-gcc"
124 all_platforms="${all_platforms} universal-darwin9-gcc"
125 all_platforms="${all_platforms} generic-gnu"
126
127 # all_targets is a list of all targets that can be configured
128 # note that these should be in dependency order for now.
129 all_targets="libs examples docs"
130
131 # all targets available are enabled, by default.
132 for t in ${all_targets}; do
133     [ -f ${source_path}/${t}.mk ] && enable ${t}
134 done
135
136 # check installed doxygen version
137 doxy_version=$(doxygen --version 2>/dev/null)
138 doxy_major=${doxy_version%%.*}
139 if [ ${doxy_major:-0} -ge 1 ]; then
140     doxy_version=${doxy_version#*.}
141     doxy_minor=${doxy_version%%.*}
142     doxy_patch=${doxy_version##*.}
143
144     [ $doxy_major -gt 1 ] && enable doxygen
145     [ $doxy_minor -gt 5 ] && enable doxygen
146     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
147 fi
148
149 # install everything except the sources, by default. sources will have
150 # to be enabled when doing dist builds, since that's no longer a common
151 # case.
152 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
153 enable install_bins
154 enable install_libs
155
156 enable optimizations
157 enable fast_unaligned #allow unaligned accesses, if supported by hw
158 enable md5
159 enable spatial_resampling
160 enable multithread
161
162 [ -d ${source_path}/../include ] && enable alt_tree_layout
163 for d in vp8; do
164     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
165 done
166
167 if ! enabled alt_tree_layout; then
168 # development environment
169 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
170 else
171 # customer environment
172 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
173 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
174
175 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
176 fi
177
178 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
179 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
180
181 ARCH_LIST="
182     arm
183     mips
184     x86
185     x86_64
186     ppc32
187     ppc64
188 "
189 ARCH_EXT_LIST="
190     armv5te
191     armv6
192     armv7
193     iwmmxt
194     iwmmxt2
195
196     mips32
197
198     mmx
199     sse
200     sse2
201     sse3
202     ssse3
203     sse4_1
204
205     altivec
206 "
207 HAVE_LIST="
208     ${ARCH_EXT_LIST}
209     vpx_ports
210     stdint_h
211     alt_tree_layout
212     pthread_h
213     sys_mman_h
214 "
215 CONFIG_LIST="
216     external_build
217     install_docs
218     install_bins
219     install_libs
220     install_srcs
221     debug
222     gprof
223     gcov
224     rvct
225     gcc
226     msvs
227     pic
228     big_endian
229
230     codec_srcs
231     debug_libs
232     fast_unaligned
233     mem_manager
234     mem_tracker
235     mem_checks
236     md5
237
238     dequant_tokens
239     dc_recon
240     runtime_cpu_detect
241     postproc
242     multithread
243     psnr
244     ${CODECS}
245     ${CODEC_FAMILIES}
246     encoders
247     decoders
248     static_msvcrt
249     spatial_resampling
250     realtime_only
251     shared
252     small
253     arm_asm_detok
254     postproc_visualizer
255 "
256 CMDLINE_SELECT="
257     extra_warnings
258     werror
259     install_docs
260     install_bins
261     install_libs
262     install_srcs
263     debug
264     gprof
265     gcov
266     pic
267     optimizations
268     ccache
269     runtime_cpu_detect
270
271     libs
272     examples
273     libc
274     as
275     fast_unaligned
276     codec_srcs
277     debug_libs
278     md5
279
280     dequant_tokens
281     dc_recon
282     postproc
283     multithread
284     psnr
285     ${CODECS}
286     ${CODEC_FAMILIES}
287     static_msvcrt
288     mem_tracker
289     spatial_resampling
290     realtime_only
291     shared
292     small
293     arm_asm_detok
294     postproc_visualizer
295 "
296
297 process_cmdline() {
298     for opt do
299         optval="${opt#*=}"
300         case "$opt" in
301         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
302         *) process_common_cmdline $opt
303         ;;
304         esac
305     done
306 }
307
308 post_process_cmdline() {
309     local c
310
311     # If the codec family is disabled, disable all components of that family.
312     # If the codec family is enabled, enable all components of that family.
313     log_echo "Configuring selected codecs"
314     for c in ${CODECS}; do
315         disabled ${c%%_*} && disable ${c}
316         enabled ${c%%_*} && enable ${c}
317     done
318
319     # Enable all detected codecs, if they haven't been disabled
320     for c in ${CODECS}; do soft_enable $c; done
321
322     # Enable the codec family if any component of that family is enabled
323     for c in ${CODECS}; do
324         enabled $c && enable ${c%_*}
325     done
326
327     # Set the {en,de}coders variable if any algorithm in that class is enabled
328     for c in ${CODECS}; do
329         enabled ${c} && enable ${c##*_}s
330     done
331 }
332
333
334 process_targets() {
335     enabled child || write_common_config_banner
336     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
337
338     # TODO: add host tools target (obj_int_extract, etc)
339
340     # For fat binaries, call configure recursively to configure for each
341     # binary architecture to be included.
342     if enabled universal; then
343         # Call configure (ourselves) for each subarchitecture
344         for arch in $fat_bin_archs; do
345             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
346         done
347     fi
348
349     # The write_common_config (config.mk) logic is deferred until after the
350     # recursive calls to configure complete, becuase we want our universal
351     # targets to be executed last.
352     write_common_config_targets
353     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
354
355     # Calculate the default distribution name, based on the enabled features
356     local cf
357     local DIST_DIR=vpx
358     for cf in $CODEC_FAMILIES; do
359         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
360             DIST_DIR="${DIST_DIR}-${cf}"
361         elif enabled ${cf}_encoder; then
362             DIST_DIR="${DIST_DIR}-${cf}cx"
363         elif enabled ${cf}_decoder; then
364             DIST_DIR="${DIST_DIR}-${cf}dx"
365         fi
366     done
367     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
368     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
369     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
370     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
371     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
372     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
373     case "${tgt_os}" in
374     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
375           DIST_DIR="${DIST_DIR}-${tgt_cc}"
376           ;;
377     esac
378     if [ -f "${source_path}/build/make/version.sh" ]; then
379         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
380         DIST_DIR="${DIST_DIR}-${ver}"
381         ver=${ver%%-*}
382         VERSION_PATCH=${ver##*.}
383         ver=${ver%.*}
384         VERSION_MINOR=${ver##*.}
385         ver=${ver#v}
386         VERSION_MAJOR=${ver%.*}
387     fi
388     enabled child || cat <<EOF >> config.mk
389 ifeq (\$(MAKECMDGOALS),dist)
390 DIST_DIR?=${DIST_DIR}
391 else
392 DIST_DIR?=\$(DESTDIR)${prefix}
393 endif
394 LIBSUBDIR=${libdir##${prefix}/}
395
396 VERSION_MAJOR=${VERSION_MAJOR}
397 VERSION_MINOR=${VERSION_MINOR}
398 VERSION_PATCH=${VERSION_PATCH}
399
400 CONFIGURE_ARGS=${CONFIGURE_ARGS}
401 EOF
402     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
403
404     #
405     # Write makefiles for all enabled targets
406     #
407     for tgt in libs examples docs solution; do
408         local tgt_fn="$tgt-$toolchain.mk"
409
410         if enabled $tgt; then
411             echo "Creating makefiles for ${toolchain} ${tgt}"
412             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
413             #write_${tgt}_config
414         fi
415     done
416
417 }
418
419 process_detect() {
420     if enabled shared; then
421         # Can only build shared libs on a subset of platforms. Doing this check
422         # here rather than at option parse time because the target auto-detect
423         # magic happens after the command line has been parsed.
424         enabled linux || die "--enable-shared only supported on ELF for now"
425     fi
426     if [ -z "$CC" ]; then
427         echo "Bypassing toolchain for environment detection."
428         enable external_build
429         check_header() {
430             log fake_check_header "$@"
431             header=$1
432             shift
433             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
434             disable $var
435             case $header in
436                 stdio.h)
437                     true;
438                 ;;
439                 *)
440                     local result=false
441                     for d in "$@"; do
442                         [ -f "${d##-I}/$header" ] && result=true && break
443                     done
444                     ${result:-true}
445             esac && enable $var
446         }
447         check_ld() {
448             true
449         }
450     fi
451     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
452     check_ld <<EOF || die "Toolchain is unable to link executables"
453 int main(void) {return 0;}
454 EOF
455     # check system headers
456     check_header stdint.h
457     check_header pthread.h
458     check_header sys/mman.h
459
460     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
461 }
462
463 process_toolchain() {
464     process_common_toolchain
465
466     # Handle universal binaries for this architecture
467     case $toolchain in
468         universal-darwin*)
469             local darwin_ver=${tgt_os##darwin}
470             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
471
472             # Intel
473             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
474             if [ $darwin_ver -gt 8 ]; then
475                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
476             fi
477             ;;
478     esac
479
480
481     # Enable some useful compiler flags
482     if enabled gcc; then
483         enabled werror && check_add_cflags -Werror
484         check_add_cflags -Wall
485         check_add_cflags -Wdeclaration-after-statement
486         check_add_cflags -Wdisabled-optimization
487         check_add_cflags -Wpointer-arith
488         check_add_cflags -Wtype-limits
489         check_add_cflags -Wcast-qual
490         enabled extra_warnings || check_add_cflags -Wno-unused
491     fi
492
493     if enabled icc; then
494         enabled werror && check_add_cflags -Werror
495         check_add_cflags -Wall
496         check_add_cflags -Wpointer-arith
497
498         # ICC has a number of floating point optimizations that we disable
499         # in favor of deterministic output WRT to other compilers
500         add_cflags -fp-model precise
501     fi
502
503     # Enable extra, harmless warnings. These might provide additional insight
504     # to what the compiler is doing and why, but in general, but they shouldn't
505     # be treated as fatal, even if we're treating warnings as errors.
506     GCC_EXTRA_WARNINGS="
507         -Wdisabled-optimization
508         -Winline
509     "
510     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
511     RVCT_EXTRA_WARNINGS="
512         --remarks
513     "
514     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
515     if enabled extra_warnings; then
516         for w in ${EXTRA_WARNINGS}; do
517             check_add_cflags ${w}
518             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
519         done
520     fi
521
522     # ccache only really works on gcc toolchains
523     enabled gcc || soft_disable ccache
524     if enabled mips; then
525         enable dequant_tokens
526         enable dc_recon
527     fi
528
529     # Enable the postbuild target if building for visual studio.
530     case "$tgt_cc" in
531         vs*) enable msvs
532              enable solution
533              vs_version=${tgt_cc##vs}
534              all_targets="${all_targets} solution"
535         ;;
536     esac
537
538     # Other toolchain specific defaults
539     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
540
541     enabled postproc_visualizer && {enabled postproc \
542         || die "postproc_visualizer requires postproc to be enabled"}
543 }
544
545
546 ##
547 ## END APPLICATION SPECIFIC CONFIGURATION
548 ##
549 CONFIGURE_ARGS="$@"
550 process "$@"
551 cat <<EOF > ${BUILD_PFX}vpx_config.c
552 static const char* const cfg = "$CONFIGURE_ARGS";
553 const char *vpx_codec_build_config(void) {return cfg;}
554 EOF