configure.sh 24.7 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1 2
#!/bin/bash
##
3
##  configure.sh
John Koleszar's avatar
John Koleszar committed
4
##
5 6 7 8 9
##  This script is sourced by the main configure script and contains
##  utility functions and other common bits that aren't strictly libvpx
##  related.
##
##  This build system is based in part on the FFmpeg configure script.
John Koleszar's avatar
John Koleszar committed
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122
##


#
# Logging / Output Functions
#
die_unknown(){
    echo "Unknown option \"$1\"."
    echo "See $0 --help for available options."
    clean_temp_files
    exit 1
}


die() {
    echo "$@"
    echo
    echo "Configuration failed. This could reflect a misconfiguration of your"
    echo "toolchains, improper options selected, or another problem. If you"
    echo "don't see any useful error messages above, the next step is to look"
    echo "at the configure error log file ($logfile) to determine what"
    echo "configure was trying to do when it died."
    clean_temp_files
    exit 1
}


log(){
    echo "$@" >>$logfile
}


log_file(){
    log BEGIN $1
    pr -n -t $1 >>$logfile
    log END $1
}


log_echo() {
    echo "$@"
    log "$@"
}


fwrite () {
    outfile=$1
    shift
    echo "$@" >> ${outfile}
}


show_help_pre(){
    for opt in ${CMDLINE_SELECT}; do
        opt2=`echo $opt | sed -e 's;_;-;g'`
        if enabled $opt; then
            eval "toggle_${opt}=\"--disable-${opt2}\""
        else
            eval "toggle_${opt}=\"--enable-${opt2} \""
        fi
    done

    cat <<EOF
Usage: configure [options]
Options:

Build options:
  --help                      print this message
  --log=yes|no|FILE           file configure log is written to [config.err]
  --target=TARGET             target platform tuple [generic-gnu]
  --cpu=CPU                   optimize for a specific cpu rather than a family
  ${toggle_extra_warnings}    emit harmless warnings (always non-fatal)
  ${toggle_werror}            treat warnings as errors, if possible
                              (not available with all compilers)
  ${toggle_optimizations}     turn on/off compiler optimization flags
  ${toggle_pic}               turn on/off Position Independant Code
  ${toggle_ccache}            turn on/off compiler cache
  ${toggle_debug}             enable/disable debug mode
  ${toggle_gprof}             enable/disable gprof profiling instrumentation
  ${toggle_gcov}              enable/disable gcov coverage instrumentation

Install options:
  ${toggle_install_docs}      control whether docs are installed
  ${toggle_install_bins}      control whether binaries are installed
  ${toggle_install_libs}      control whether libraries are installed
  ${toggle_install_srcs}      control whether sources are installed


EOF
}


show_help_post(){
    cat <<EOF


NOTES:
    Object files are built at the place where configure is launched.

    All boolean options can be negated. The default value is the opposite
    of that shown above. If the option --disable-foo is listed, then
    the default value for foo is enabled.

Supported targets:
EOF
  show_targets ${all_platforms}
  echo
  exit 1
}


show_targets() {
    while [ -n "$*" ]; do
123 124
        if [ "${1%%-*}" = "${2%%-*}" ]; then
            if [ "${2%%-*}" = "${3%%-*}" ]; then
John Koleszar's avatar
John Koleszar committed
125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368
                printf "    %-24s %-24s %-24s\n" "$1" "$2" "$3"
                shift; shift; shift
            else
                printf "    %-24s %-24s\n" "$1" "$2"
                shift; shift
            fi
        else
            printf "    %-24s\n" "$1"
            shift
        fi
    done
}


show_help() {
    show_help_pre
    show_help_post
}

#
# List Processing Functions
#
set_all(){
    value=$1
    shift
    for var in $*; do
        eval $var=$value
    done
}


is_in(){
    value=$1
    shift
    for var in $*; do
        [ $var = $value ] && return 0
    done
    return 1
}


add_cflags() {
    CFLAGS="${CFLAGS} $@"
}


add_ldflags() {
    LDFLAGS="${LDFLAGS} $@"
}


add_asflags() {
    ASFLAGS="${ASFLAGS} $@"
}


add_extralibs() {
    extralibs="${extralibs} $@"
}

#
# Boolean Manipulation Functions
#
enable(){
    set_all yes $*
}

disable(){
    set_all no $*
}

enabled(){
    eval test "x\$$1" = "xyes"
}

disabled(){
    eval test "x\$$1" = "xno"
}


soft_enable() {
    for var in $*; do
        if ! disabled $var; then
            log_echo "  enabling $var"
            enable $var
        fi
    done
}

soft_disable() {
    for var in $*; do
        if ! enabled $var; then
            log_echo "  disabling $var"
            disable $var
        fi
    done
}


#
# Text Processing Functions
#
toupper(){
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
}


tolower(){
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
}


#
# Temporary File Functions
#
source_path=${0%/*}
enable source_path_used
if test -z "$source_path" -o "$source_path" = "." ; then
    source_path="`pwd`"
    disable source_path_used
fi

if test ! -z "$TMPDIR" ; then
    TMPDIRx="${TMPDIR}"
elif test ! -z "$TEMPDIR" ; then
    TMPDIRx="${TEMPDIR}"
else
    TMPDIRx="/tmp"
fi
TMP_H="${TMPDIRx}/vpx-conf-$$-${RANDOM}.h"
TMP_C="${TMPDIRx}/vpx-conf-$$-${RANDOM}.c"
TMP_O="${TMPDIRx}/vpx-conf-$$-${RANDOM}.o"
TMP_X="${TMPDIRx}/vpx-conf-$$-${RANDOM}.x"

clean_temp_files() {
    rm -f ${TMP_C} ${TMP_H} ${TMP_O} ${TMP_X}
}

#
# Toolchain Check Functions
#
check_cmd() {
    log "$@"
    "$@" >>${logfile} 2>&1
}

check_cc() {
    log check_cc "$@"
    cat >${TMP_C}
    log_file ${TMP_C}
    check_cmd ${CC} ${CFLAGS} "$@" -c -o ${TMP_O} ${TMP_C}
}

check_cpp() {
    log check_cpp "$@"
    cat > ${TMP_C}
    log_file ${TMP_C}
    check_cmd ${CC} ${CFLAGS} "$@" -E -o ${TMP_O} ${TMP_C}
}

check_ld() {
    log check_ld "$@"
    check_cc $@ \
        && check_cmd ${LD} ${LDFLAGS} "$@" -o ${TMP_X} ${TMP_O} ${extralibs}
}

check_header(){
    log check_header "$@"
    header=$1
    shift
    var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
    disable $var
    check_cpp "$@" <<EOF && enable $var
#include "$header"
int x;
EOF
}


check_cflags() {
    log check_cflags "$@"
    check_cc "$@" <<EOF
int x;
EOF
}

check_add_cflags() {
    check_cflags "$@" && add_cflags "$@"
}

check_add_asflags() {
    log add_asflags "$@"
    add_asflags "$@"
}

check_add_ldflags() {
    log add_ldflags "$@"
    add_ldflags "$@"
}

write_common_config_banner() {
    echo '# This file automatically generated by configure. Do not edit!' > config.mk
    echo "TOOLCHAIN := ${toolchain}" >> config.mk

    case ${toolchain} in
        *-linux-rvct)
            echo "ALT_LIBC := ${alt_libc}" >> config.mk
            ;;
    esac
}

write_common_config_targets() {
    for t in ${all_targets}; do
        if enabled ${t}; then
            if enabled universal || enabled child; then
                fwrite config.mk "ALL_TARGETS += ${t}-${toolchain}"
            else
                fwrite config.mk "ALL_TARGETS += ${t}"
            fi
        fi
    true;
    done
true
}

write_common_target_config_mk() {
    local CC=${CC}
    enabled ccache && CC="ccache ${CC}"

    cat > $1 << EOF
# This file automatically generated by configure. Do not edit!
SRC_PATH="$source_path"
SRC_PATH_BARE=$source_path
BUILD_PFX=${BUILD_PFX}
TOOLCHAIN=${toolchain}
ASM_CONVERSION=${asm_conversion_cmd:-${source_path}/build/make/ads2gas.pl}

CC=${CC}
AR=${AR}
LD=${LD}
AS=${AS}
STRIP=${STRIP}
NM=${NM}

369
CFLAGS  = ${CFLAGS}
John Koleszar's avatar
John Koleszar committed
370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442
ARFLAGS = -rus\$(if \$(quiet),c,v)
LDFLAGS = ${LDFLAGS}
ASFLAGS = ${ASFLAGS}
extralibs = ${extralibs}
AS_SFX    = ${AS_SFX:-.asm}
EOF

    if enabled rvct; then cat >> $1 << EOF
fmt_deps = sed -e 's;^__image.axf;\$(dir \$@)\$(notdir \$<).o \$@;' #hide
EOF
    else cat >> $1 << EOF
fmt_deps = sed -e 's;^\(.*\)\.o;\$(dir \$@)\1\$(suffix \$<).o \$@;' #hide
EOF
    fi

    print_config_mk ARCH   "${1}" ${ARCH_LIST}
    print_config_mk HAVE   "${1}" ${HAVE_LIST}
    print_config_mk CONFIG "${1}" ${CONFIG_LIST}
    print_config_mk HAVE   "${1}" gnu_strip

    enabled msvs && echo "CONFIG_VS_VERSION=${vs_version}" >> "${1}"

}


write_common_target_config_h() {
    cat > ${TMP_H} << EOF
/* This file automatically generated by configure. Do not edit! */
#define RESTRICT    ${RESTRICT}
EOF
    print_config_h ARCH   "${TMP_H}" ${ARCH_LIST}
    print_config_h HAVE   "${TMP_H}" ${HAVE_LIST}
    print_config_h CONFIG "${TMP_H}" ${CONFIG_LIST}
    mkdir -p `dirname "$1"`
    cmp "$1" ${TMP_H} >/dev/null 2>&1 || mv ${TMP_H} "$1"
}

process_common_cmdline() {
    for opt in "$@"; do
        optval="${opt#*=}"
        case "$opt" in
        --child) enable child
        ;;
        --log*)
        logging="$optval"
        if ! disabled logging ; then
            enabled logging || logfile="$logging"
        else
            logfile=/dev/null
        fi
        ;;
        --target=*) toolchain="${toolchain:-${optval}}"
        ;;
        --force-target=*) toolchain="${toolchain:-${optval}}"; enable force_toolchain
        ;;
        --cpu)
        ;;
        --cpu=*) tune_cpu="$optval"
        ;;
        --enable-?*|--disable-?*)
        eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
        echo "${CMDLINE_SELECT} ${ARCH_EXT_LIST}" | grep "^ *$option\$" >/dev/null || die_unknown $opt
        $action $option
        ;;
        --force-enable-?*|--force-disable-?*)
        eval `echo "$opt" | sed 's/--force-/action=/;s/-/ option=/;s/-/_/g'`
        $action $option
        ;;
        --libc=*)
        [ -d "${optval}" ] || die "Not a directory: ${optval}"
        disable builtin_libc
        alt_libc="${optval}"
        ;;
443 444 445 446 447 448 449
        --prefix=*)
        prefix="${optval}"
        ;;
        --libdir=*)
        libdir="${optval}"
        ;;
        --libc|--prefix|--libdir)
John Koleszar's avatar
John Koleszar committed
450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469
        die "Option ${opt} requires argument"
        ;;
        --help|-h) show_help
        ;;
        *) die_unknown $opt
        ;;
        esac
    done
}

process_cmdline() {
    for opt do
        optval="${opt#*=}"
        case "$opt" in
        *) process_common_cmdline $opt
        ;;
        esac
    done
}

470 471 472 473 474 475

post_process_common_cmdline() {
    prefix="${prefix:-/usr/local}"
    prefix="${prefix%/}"
    libdir="${libdir:-${prefix}/lib}"
    libdir="${libdir%/}"
476
    if [ "${libdir#${prefix}}" = "${libdir}" ]; then
477 478 479 480 481
        die "Libdir ${libdir} must be a subdirectory of ${prefix}"
    fi
}


John Koleszar's avatar
John Koleszar committed
482 483 484 485 486 487 488 489 490 491 492 493 494 495 496
post_process_cmdline() {
    true;
}

setup_gnu_toolchain() {
        CC=${CC:-${CROSS}gcc}
        AR=${AR:-${CROSS}ar}
        LD=${LD:-${CROSS}${link_with_cc:-ld}}
        AS=${AS:-${CROSS}as}
    STRIP=${STRIP:-${CROSS}strip}
    NM=${NM:-${CROSS}nm}
        AS_SFX=.s
}

process_common_toolchain() {
497
    if [ -z "$toolchain" ]; then
498
	gcctarget="$(gcc -dumpmachine 2> /dev/null)"
499 500

        # detect tgt_isa
501
        case "$gcctarget" in
502
            *x86_64*|*amd64*)
503 504 505 506 507 508 509 510
                tgt_isa=x86_64
                ;;
            *i[3456]86*)
                tgt_isa=x86
                ;;
        esac

        # detect tgt_os
511 512
        case "$gcctarget" in
            *darwin8*)
513 514 515
                tgt_isa=universal
                tgt_os=darwin8
                ;;
516
            *darwin9*)
517 518 519
                tgt_isa=universal
                tgt_os=darwin9
                ;;
John Koleszar's avatar
John Koleszar committed
520
            *mingw32*|*cygwin*)
521 522
                tgt_os=win32
                ;;
523
            *linux*|*bsd*)
524 525 526 527 528 529 530 531 532
                tgt_os=linux
                ;;
        esac

        if [ -n "$tgt_isa" ] && [ -n "$tgt_os" ]; then
            toolchain=${tgt_isa}-${tgt_os}-gcc
        fi
    fi

John Koleszar's avatar
John Koleszar committed
533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797
    toolchain=${toolchain:-generic-gnu}

    is_in ${toolchain} ${all_platforms} || enabled force_toolchain \
        || die "Unrecognized toolchain '${toolchain}'"

    enabled child || log_echo "Configuring for target '${toolchain}'"

    #
    # Set up toolchain variables
    #
    tgt_isa=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $1}')
    tgt_os=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $2}')
    tgt_cc=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $3}')

    # Mark the specific ISA requested as enabled
    soft_enable ${tgt_isa}
    enable ${tgt_os}
    enable ${tgt_cc}

    # Enable the architecture family
    case ${tgt_isa} in
        arm*|iwmmxt*) enable arm;;
    mips*)        enable mips;;
    esac

    # Handle darwin variants
    case ${toolchain} in
        *-darwin8-gcc)
            add_cflags  "-isysroot /Developer/SDKs/MacOSX10.4u.sdk"
            add_cflags  "-mmacosx-version-min=10.4"
            add_ldflags "-isysroot /Developer/SDKs/MacOSX10.4u.sdk"
            add_ldflags "-mmacosx-version-min=10.4"
            ;;
        *-darwin9-gcc)
            add_cflags  "-isysroot /Developer/SDKs/MacOSX10.5.sdk"
            add_cflags  "-mmacosx-version-min=10.5"
            add_ldflags "-isysroot /Developer/SDKs/MacOSX10.5.sdk"
            add_ldflags "-mmacosx-version-min=10.5"
            ;;
    esac

    # Process ARM architecture variants
    case ${toolchain} in
    arm*|iwmmxt*)
    # on arm, isa versions are supersets
    enabled armv7a && soft_enable armv7 ### DEBUG
    enabled armv7 && soft_enable armv6
    enabled armv6 && soft_enable armv5te
    enabled armv6 && soft_enable fast_unaligned
    enabled iwmmxt2 && soft_enable iwmmxt
    enabled iwmmxt && soft_enable armv5te

    asm_conversion_cmd="cat"

        case ${tgt_cc} in
        gcc)
        if enabled iwmmxt || enabled iwmmxt2
            then
                CROSS=${CROSS:-arm-iwmmxt-linux-gnueabi-}
            elif enabled symbian; then
                CROSS=${CROSS:-arm-none-symbianelf-}
            else
                CROSS=${CROSS:-arm-none-linux-gnueabi-}
            fi
            link_with_cc=gcc
            setup_gnu_toolchain
            arch_int=${tgt_isa##armv}
            arch_int=${arch_int%%te}
            check_add_asflags --defsym ARCHITECTURE=${arch_int}
            tune_cflags="-mtune="
        if enabled iwmmxt || enabled iwmmxt2
            then
                check_add_asflags -mcpu=${tgt_isa}
            elif enabled armv7
            then
                check_add_cflags -march=armv7-a -mcpu=cortex-a8 -mfpu=neon -mfloat-abi=softfp  #-ftree-vectorize
        check_add_asflags -mcpu=cortex-a8 -mfpu=neon -mfloat-abi=softfp  #-march=armv7-a
            else
                check_add_cflags -march=${tgt_isa}
                check_add_asflags -march=${tgt_isa}
            fi

            asm_conversion_cmd="${source_path}/build/make/ads2gas.pl"
            ;;
        rvct)
            CC=armcc
            AR=armar
            AS=armasm
            LD=${source_path}/build/make/armlink_adapter.sh
            STRIP=arm-none-linux-gnueabi-strip
            NM=arm-none-linux-gnueabi-nm
            tune_cflags="--cpu="
            tune_asflags="--cpu="
            if [ -z "${tune_cpu}" ]; then
            if enabled armv7
                then
                    check_add_cflags --cpu=Cortex-A8 --fpu=softvfp+vfpv3
                    check_add_asflags --cpu=Cortex-A8 --fpu=none
                else
                    check_add_cflags --cpu=${tgt_isa##armv}
                    check_add_asflags --cpu=${tgt_isa##armv}
                fi
            fi
            arch_int=${tgt_isa##armv}
            arch_int=${arch_int%%te}
            check_add_asflags --pd "\"ARCHITECTURE SETA ${arch_int}\""
        ;;
        esac

        case ${tgt_os} in
        darwin*)
            SDK_PATH=/Developer/Platforms/iPhoneOS.platform/Developer
            TOOLCHAIN_PATH=${SDK_PATH}/usr/bin
            CC=${TOOLCHAIN_PATH}/gcc
            AR=${TOOLCHAIN_PATH}/ar
            LD=${TOOLCHAIN_PATH}/arm-apple-darwin9-gcc-4.2.1
            AS=${TOOLCHAIN_PATH}/as
            STRIP=${TOOLCHAIN_PATH}/strip
            NM=${TOOLCHAIN_PATH}/nm
            AS_SFX=.s

            # ASFLAGS is written here instead of using check_add_asflags
            # because we need to overwrite all of ASFLAGS and purge the
            # options that were put in above
            ASFLAGS="-version -arch ${tgt_isa} -g"

            add_cflags -arch ${tgt_isa}
            add_ldflags -arch_only ${tgt_isa}

            add_cflags  "-isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.sdk"

            # This should be overridable
            alt_libc=${SDK_PATH}/SDKs/iPhoneOS3.1.sdk

            # Add the paths for the alternate libc
#            for d in usr/include usr/include/gcc/darwin/4.0/; do
            for d in usr/include usr/include/gcc/darwin/4.0/ usr/lib/gcc/arm-apple-darwin9/4.0.1/include/; do
                try_dir="${alt_libc}/${d}"
                [ -d "${try_dir}" ] && add_cflags -I"${try_dir}"
            done

            for d in lib usr/lib; do
                try_dir="${alt_libc}/${d}"
                [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}"
            done

            asm_conversion_cmd="${source_path}/build/make/ads2gas_apple.pl"
         ;;

        linux*)
            enable linux
            if enabled rvct; then
                # Compiling with RVCT requires an alternate libc (glibc) when
                # targetting linux.
                disabled builtin_libc \
                    || die "Must supply --libc when targetting *-linux-rvct"

                # Set up compiler
                add_cflags --gnu
                add_cflags --enum_is_int
                add_cflags --library_interface=aeabi_glibc
                add_cflags --no_hide_all
                add_cflags --wchar32
                add_cflags --dwarf2
                add_cflags --gnu

                # Set up linker
                add_ldflags --sysv --no_startup --no_ref_cpp_init
                add_ldflags --entry=_start
                add_ldflags --keep '"*(.init)"' --keep '"*(.fini)"'
                add_ldflags --keep '"*(.init_array)"' --keep '"*(.fini_array)"'
                add_ldflags --dynamiclinker=/lib/ld-linux.so.3
                add_extralibs libc.so.6 -lc_nonshared crt1.o crti.o crtn.o

                # Add the paths for the alternate libc
                for d in usr/include; do
                    try_dir="${alt_libc}/${d}"
                    [ -d "${try_dir}" ] && add_cflags -J"${try_dir}"
                done
                add_cflags -J"${RVCT31INC}"
                for d in lib usr/lib; do
                    try_dir="${alt_libc}/${d}"
                    [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}"
                done


                # glibc has some struct members named __align, which is a
                # storage modifier in RVCT. If we need to use this modifier,
                # we'll have to #undef it in our code. Note that this must
                # happen AFTER all libc inclues.
                add_cflags -D__align=x_align_x
            fi
        ;;

        symbian*)
            enable symbian
            # Add the paths for the alternate libc
            for d in include/libc; do
                try_dir="${alt_libc}/${d}"
                [ -d "${try_dir}" ] && add_cflags -I"${try_dir}"
            done
            for d in release/armv5/urel; do
                try_dir="${alt_libc}/${d}"
                [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}"
            done
            add_cflags -DIMPORT_C=

        esac
    ;;
    mips*)
        CROSS=${CROSS:-mipsel-linux-uclibc-}
        link_with_cc=gcc
        setup_gnu_toolchain
        tune_cflags="-mtune="
        check_add_cflags -march=${tgt_isa}
    check_add_asflags -march=${tgt_isa}
    check_add_asflags -KPIC
    ;;
    ppc*)
        enable ppc
        bits=${tgt_isa##ppc}
        link_with_cc=gcc
        setup_gnu_toolchain
        add_asflags -force_cpusubtype_ALL -I"\$(dir \$<)darwin"
        add_cflags -maltivec -faltivec
        soft_enable altivec

        case "$tgt_os" in
        linux*)
            add_asflags -maltivec -mregnames -I"\$(dir \$<)linux"
        ;;
        darwin*)
            darwin_arch="-arch ppc"
            enabled ppc64 && darwin_arch="${darwin_arch}64"
            add_cflags  ${darwin_arch} -m${bits} -fasm-blocks
            add_asflags ${darwin_arch} -force_cpusubtype_ALL -I"\$(dir \$<)darwin"
            add_ldflags ${darwin_arch} -m${bits}
        ;;
        esac
    ;;
    x86*)
        bits=32
        enabled x86_64 && bits=64
        soft_enable runtime_cpu_detect
        soft_enable mmx
        soft_enable sse
        soft_enable sse2
        soft_enable sse3
        soft_enable ssse3

        case  ${tgt_os} in
            solaris*)
                CC=${CC:-${CROSS}gcc}
                LD=${LD:-${CROSS}gcc}
                CROSS=${CROSS:-g}
                ;;
        esac

        case  ${tgt_cc} in
            icc*)
                CC=${CC:-icc}
                LD=${LD:-icc}
                setup_gnu_toolchain
                add_cflags -use-msasm -use-asm
                add_ldflags -i-static
798 799
                enabled x86_64 && add_cflags -ipo -no-prec-div -static -xSSE3 -axSSE3
                enabled x86_64 && AR=xiar
John Koleszar's avatar
John Koleszar committed
800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836
                ;;
            gcc*)
                add_cflags  -m${bits}
                add_ldflags -m${bits}
                link_with_cc=gcc
            setup_gnu_toolchain
                ;;
        esac

        AS=yasm
        AS_SFX=.asm
        case  ${tgt_os} in
            win*)
                add_asflags -f win${bits}
                enabled debug && add_asflags -g dwarf2
            ;;
            linux*|solaris*)
                add_asflags -f elf${bits}
                enabled debug && add_asflags -g dwarf2
            ;;
            darwin*)
                add_asflags -f macho${bits}
                enabled x86 && darwin_arch="-arch i386" || darwin_arch="-arch x86_64"
                add_cflags  ${darwin_arch}
                add_ldflags ${darwin_arch}
                # -mdynamic-no-pic is still a bit of voodoo -- it was required at
                # one time, but does not seem to be now, and it breaks some of the
                # code that still relies on inline assembly.
                # enabled icc && ! enabled pic && add_cflags -fno-pic -mdynamic-no-pic
                enabled icc && ! enabled pic && add_cflags -fno-pic
            ;;
            *) log "Warning: Unknown os $tgt_os while setting up yasm flags"
            ;;
        esac
    ;;
    universal*|*-gcc|generic-gnu)
        link_with_cc=gcc
837
        enable gcc
John Koleszar's avatar
John Koleszar committed
838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900
    setup_gnu_toolchain
    ;;
    esac

    # Try to enable CPU specific tuning
    if [ -n "${tune_cpu}" ]; then
        if [ -n "${tune_cflags}" ]; then
            check_add_cflags ${tune_cflags}${tune_cpu} || \
                die "Requested CPU '${tune_cpu}' not supported by compiler"
        fi
    if [ -n "${tune_asflags}" ]; then
            check_add_asflags ${tune_asflags}${tune_cpu} || \
                die "Requested CPU '${tune_cpu}' not supported by assembler"
        fi
    if [ -z "${tune_cflags}${tune_asflags}" ]; then
            log_echo "Warning: CPU tuning not supported by this toolchain"
        fi
    fi

    enabled debug && check_add_cflags -g && check_add_ldflags -g
    enabled gprof && check_add_cflags -pg && check_add_ldflags -pg
    enabled gcov &&
        check_add_cflags -fprofile-arcs -ftest-coverage &&
        check_add_ldflags -fprofile-arcs -ftest-coverage
    enabled optimizations && check_add_cflags -O3
    if enabled rvct; then
        enabled optimizations && check_add_cflags -Otime
    fi

    # Position Independant Code (PIC) support, for building relocatable
    # shared objects
    enabled gcc && enabled pic && check_add_cflags -fPIC

    # Check for strip utility variant
    ${STRIP} -V 2>/dev/null | grep GNU >/dev/null && enable gnu_strip

    # Try to determine target endianness
    check_cc <<EOF
    unsigned int e = 'O'<<24 | '2'<<16 | 'B'<<8 | 'E';
EOF
    [ -f "${TMP_O}" ] && od -A n -t x1 "${TMP_O}" | tr -d '\n' |
        grep '4f *32 *42 *45' >/dev/null 2>&1 && enable big_endian

    # Almost every platform uses pthreads.
    if enabled multithread; then
        case ${toolchain} in
            *-win*);;
            *) check_header pthread.h && add_extralibs -lpthread
        esac
    fi

    # glibc needs these
    if enabled linux; then
	add_cflags -D_LARGEFILE_SOURCE
	add_cflags -D_FILE_OFFSET_BITS=64
    fi
}

process_toolchain() {
    process_common_toolchain
}

print_config_mk() {
901 902
    local prefix=$1
    local makefile=$2
John Koleszar's avatar
John Koleszar committed
903 904 905 906 907 908 909 910 911 912
    shift 2
    for cfg; do
        upname="`toupper $cfg`"
        if enabled $cfg; then
            echo "${prefix}_${upname}=yes" >> $makefile
        fi
    done
}

print_config_h() {
913 914
    local prefix=$1
    local header=$2
John Koleszar's avatar
John Koleszar committed
915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944
    shift 2
    for cfg; do
        upname="`toupper $cfg`"
        if enabled $cfg; then
            echo "#define ${prefix}_${upname} 1" >> $header
        else
            echo "#define ${prefix}_${upname} 0" >> $header
        fi
    done
}

process_targets() {
    true;
}

process_detect() {
    true;
}

enable logging
logfile="config.err"
self=$0
process() {
    cmdline_args="$@"
    process_cmdline "$@"
    if enabled child; then
        echo "# ${self} $@" >> ${logfile}
    else
        echo "# ${self} $@" > ${logfile}
    fi
945
    post_process_common_cmdline
John Koleszar's avatar
John Koleszar committed
946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962
    post_process_cmdline
    process_toolchain
    process_detect
    process_targets

    OOT_INSTALLS="${OOT_INSTALLS}"
    if enabled source_path_used; then
    # Prepare the PWD for building.
    for f in ${OOT_INSTALLS}; do
            install -D ${source_path}/$f $f
    done
    fi
    cp ${source_path}/build/make/Makefile .

    clean_temp_files
    true
}