build/tools/gen-platforms.sh - platform/ndk - Git at Google

 #!/bin/sh
 #
 # Copyright (C) 2011 The Android Open Source Project
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #      http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
 # gen-platforms.sh
 #
 # This tool is used when packaging a new release, or when developing
 # the NDK itself. It will populate DST ($NDK/platforms by default)
 # with the content of SRC ($NDK/../development/ndk/platforms/ by default).
 #
 # The idea is that the content of $SRC/android-N/ only contains stuff
 # that is relevant to API level N, and not contain anything that is already
 # provided by API level N-1, N-2, etc..
 #
 # More precisely, for each architecture A:
 #  $SRC/android-N/include        --> $DST/android-N/arch-A/usr/include
 #  $SRC/android-N/arch-A/include --> $DST/android-N/arch-A/usr/include
 #  $SRC/android-N/arch-A/lib     --> $DST/android-N/arch-A/usr/lib
 #
 # Also, we generate on-the-fly shared dynamic libraries from list of symbols:
 #
 #  $SRC/android-N/arch-A/symbols --> $DST/android-N/arch-A/usr/lib
 #
 # Repeat after that for N+1, N+2, etc..
 #

 PROGDIR=$(dirname "$0")
 . "$PROGDIR/prebuilt-common.sh"

 # Return the list of platform supported from $1/platforms
 # as a single space-separated sorted list of levels. (e.g. "3 4 5 8 9 14")
 # $1: source directory
 extract_platforms_from ()
 {
     if [ -d "$1" ] ; then
         (cd "$1/platforms" && ls -d android-*) | sed -e "s!android-!!" | sort -g | tr '\n' ' '
     else
         echo ""
     fi
 }

 SRCDIR="../development/ndk"
 DSTDIR="$ANDROID_NDK_ROOT"

 ARCHS="$DEFAULT_ARCHS"
 PLATFORMS=`extract_platforms_from "$SRCDIR"`
 NDK_DIR=$ANDROID_NDK_ROOT

 OPTION_HELP=no
 OPTION_PLATFORMS=
 OPTION_SRCDIR=
 OPTION_DSTDIR=
 OPTION_SAMPLES=
 OPTION_FAST_COPY=
 OPTION_MINIMAL=
 OPTION_ARCH=
 OPTION_ABI=
 OPTION_DEBUG_LIBS=
 OPTION_OVERLAY=
 PACKAGE_DIR=

 VERBOSE=no
 VERBOSE2=no

 for opt do
   optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'`
   case "$opt" in
   --help|-h|-\?) OPTION_HELP=yes
   ;;
   --verbose)
     if [ "$VERBOSE" = "yes" ] ; then
         VERBOSE2=yes
     else
         VERBOSE=yes
     fi
     ;;
   --src-dir=*)
     OPTION_SRCDIR="$optarg"
     ;;
   --dst-dir=*)
     OPTION_DSTDIR="$optarg"
     ;;
   --ndk-dir=*)
     NDK_DIR=$optarg
     ;;
   --platform=*)
     OPTION_PLATFORM=$optarg
     ;;
   --arch=*)
     OPTION_ARCH=$optarg
     ;;
   --abi=*)  # We still support this for backwards-compatibility
     OPTION_ABI=$optarg
     ;;
   --samples)
     OPTION_SAMPLES=yes
     ;;
   --fast-copy)
     OPTION_FAST_COPY=yes
     ;;
   --minimal)
     OPTION_MINIMAL=yes
     ;;
   --package-dir=*)
     PACKAGE_DIR=$optarg
     ;;
   --debug-libs)
     OPTION_DEBUG_LIBS=true
     ;;
   --overlay)
     OPTION_OVERLAY=true
     ;;
   *)
     echo "unknown option '$opt', use --help"
     exit 1
   esac
 done

 if [ $OPTION_HELP = "yes" ] ; then
     echo "Collect files from an Android NDK development tree and assemble"
     echo "the platform files appropriately into a final release structure."
     echo ""
     echo "options:"
     echo ""
     echo "  --help                Print this message"
     echo "  --verbose             Enable verbose messages"
     echo "  --src-dir=<path>      Source directory for development platform files [$SRCDIR]"
     echo "  --dst-dir=<path>      Destination directory [$DSTDIR]"
     echo "  --ndk-dir=<path>      Use toolchains from this NDK directory [$NDK_DIR]"
     echo "  --platform=<list>     List of API levels [$PLATFORMS]"
     echo "  --arch=<list>         List of CPU architectures [$ARCHS]"
     echo "  --minimal             Ignore samples, symlinks and generated shared libs."
     echo "  --fast-copy           Don't create symlinks, copy files instead"
     echo "  --samples             Also generate samples directories."
     echo "  --package-dir=<path>  Package platforms archive in specific path."
     echo "  --debug-libs          Also generate C source file for generated libraries."
     echo ""
     echo "Use the --minimal flag if you want to generate minimal sysroot directories"
     echo "that will be used to generate prebuilt toolchains. Otherwise, the script"
     echo "will require these toolchains to be pre-installed and will use them to"
     echo "generate shared system shared libraries from the symbol list files."
     exit 0
 fi

 if [ -n "$OPTION_SRCDIR" ] ; then
     SRCDIR="$OPTION_SRCDIR";
     if [ ! -d "$SRCDIR" ] ; then
         echo "ERROR: Source directory $SRCDIR does not exist !"
         exit 1
     fi
     if [ ! -d "$SRCDIR/platforms/android-3" ] ; then
         echo "ERROR: Invalid source directory: $SRCDIR"
         echo "Please make sure it contains platforms/android-3 etc..."
         exit 1
     fi
 else
     SRCDIR=`dirname $ANDROID_NDK_ROOT`/development/ndk
     log "Using source directory: $SRCDIR"
 fi

 if [ -n "$OPTION_PLATFORM" ] ; then
     PLATFORMS=$(commas_to_spaces $OPTION_PLATFORM)
 else
     # Build the list from the content of SRCDIR
     PLATFORMS=`extract_platforms_from "$SRCDIR"`
     log "Using platforms: $PLATFORMS"
 fi

 # Remove the android- prefix of any platform name
 PLATFORMS=$(echo $PLATFORMS | tr ' ' '\n' | sed -e 's!^android-!!g' | tr '\n' ' ')

 if [ -n "$OPTION_DSTDIR" ] ; then
     DSTDIR="$OPTION_DSTDIR"
 else
     log "Using destination directory: $DSTDIR"
 fi

 # Handle architecture list
 #
 # We support both --arch and --abi for backwards compatibility reasons
 # --arch is the new hotness, --abi is deprecated.
 #
 if [ -n "$OPTION_ARCH" ]; then
     OPTION_ARCH=$(commas_to_spaces $OPTION_ARCH)
 fi

 if [ -n "$OPTION_ABI" ] ; then
     echo "WARNING: --abi=<names> is deprecated. Use --arch=<names> instead!"
     OPTION_ABI=$(commas_to_spaces $OPTION_ABI)
     if [ -n "$OPTION_ARCH" -a "$OPTION_ARCH" != "$OPTION_ABI" ]; then
         echo "ERROR: You can't use both --abi and --arch with different values!"
         exit 1
     fi
     OPTION_ARCH=$OPTION_ABI
 fi

 if [ -n "$OPTION_ARCH" ] ; then
     ARCHS="$OPTION_ARCH"
 fi
 log "Using architectures: $(commas_to_spaces $ARCHS)"

 log "Checking source platforms."
 for PLATFORM in $PLATFORMS; do
     DIR="$SRCDIR/platforms/android-$PLATFORM"
     if [ ! -d $DIR ] ; then
         echo "ERROR: Directory missing: $DIR"
         echo "Please check your --platform=<list> option and try again."
         exit 2
     else
         log "  $DIR"
     fi
 done

 log "Checking source platform architectures."
 BAD_ARCHS=
 for ARCH in $ARCHS; do
     eval CHECK_$ARCH=no
 done
 for PLATFORM in $PLATFORMS; do
     for ARCH in $ARCHS; do
         DIR="$SRCDIR/platforms/android-$PLATFORM/arch-$ARCH"
         if [ -d $DIR ] ; then
             log "  $DIR"
             eval CHECK_$ARCH=yes
         fi
     done
 done

 if [ "$OPTION_MINIMAL" ]; then
     OPTION_SAMPLES=
     OPTION_FAST_COPY=yes
 fi

 BAD_ARCHS=
 for ARCH in $ARCHS; do
     CHECK=`var_value CHECK_$ARCH`
     log "  $ARCH check: $CHECK"
     if [ "$CHECK" = no ] ; then
         if [ -z "$BAD_ARCHS" ] ; then
             BAD_ARCHS=$ARCH
         else
             BAD_ARCHS="$BAD_ARCHS $ARCH"
         fi
     fi
 done

 if [ -n "$BAD_ARCHS" ] ; then
     echo "ERROR: Source directory doesn't support these ARCHs: $BAD_ARCHS"
     exit 3
 fi

 # $1: source directory (relative to $SRCDIR)
 # $2: destination directory (relative to $DSTDIR)
 # $3: description of directory contents (e.g. "sysroot" or "samples")
 copy_src_directory ()
 {
     local SDIR="$SRCDIR/$1"
     local DDIR="$DSTDIR/$2"
     if [ -d "$SDIR" ] ; then
         log "Copying $3 from \$SRC/$1 to \$DST/$2."
         mkdir -p "$DDIR" && (cd "$SDIR" && 2>/dev/null tar chf - *) | (tar xf - -C "$DDIR")
         if [ $? != 0 ] ; then
             echo "ERROR: Could not copy $3 directory $SDIR into $DDIR !"
             exit 5
         fi
     fi
 }

 # $1: source dir
 # $2: destination dir
 # $3: reverse path
 #
 symlink_src_directory_inner ()
 {
     local files file subdir rev
     mkdir -p "$DSTDIR/$2"
     rev=$3
     files=$(cd $DSTDIR/$1 && ls -1p)
     for file in $files; do
         if [ "$file" = "${file%%/}" ]; then
             log2 "Link \$DST/$2/$file --> $rev/$1/$file"
             ln -s $rev/$1/$file $DSTDIR/$2/$file
         else
             file=${file%%/}
             symlink_src_directory_inner "$1/$file" "$2/$file" "$rev/.."
         fi
     done
 }
 # Create a symlink-copy of directory $1 into $2
 # This function is recursive.
 #
 # $1: source directory (relative to $SRCDIR)
 # $2: destination directory (relative to $DSTDIR)
 symlink_src_directory ()
 {
     symlink_src_directory_inner "$1" "$2" "$(reverse_path $1)"
 }

 # Remove unwanted symbols
 # $1: symbol file (one symbol per line)
 # $2+: Input symbol list
 # Out: Input symbol file, without any unwanted symbol listed by $1
 remove_unwanted_symbols_from ()
 {
   local SYMBOL_FILE="$1"
   shift
   if [ -f "$SYMBOL_FILE" ]; then
     echo "$@" | tr ' ' '\n' | grep -v -F -x -f $SYMBOL_FILE | tr '\n' ' '
   else
     echo "$@"
   fi
 }

 # Remove unwanted symbols from a library's functions list.
 # $1: Architecture name
 # $2: Library name (e.g. libc.so)
 # $3+: Input symbol list
 # Out: Input symbol list without any unwanted symbols.
 remove_unwanted_function_symbols ()
 {
   local ARCH LIBRARY SYMBOL_FILE
   ARCH=$1
   LIBRARY=$2
   shift; shift
   SYMBOL_FILE=$PROGDIR/unwanted-symbols/$ARCH/$LIBRARY.functions.txt
   remove_unwanted_symbols_from $SYMBOL_FILE "$@"
 }

 # Same as remove_unwanted_functions_symbols, but for variable names.
 #
 remove_unwanted_variable_symbols ()
 {
   local ARCH LIBRARY SYMBOL_FILE
   ARCH=$1
   LIBRARY=$2
   shift; shift
   SYMBOL_FILE=$PROGDIR/unwanted-symbols/$ARCH/$LIBRARY.variables.txt
   remove_unwanted_symbols_from $SYMBOL_FILE "$@"
 }

 # $1: library name
 # $2: functions list
 # $3: variables list
 # $4: destination file
 # $5: toolchain binprefix
 gen_shared_lib ()
 {
     local LIBRARY=$1
     local FUNCS="$2"
     local VARS="$3"
     local DSTFILE="$4"
     local BINPREFIX="$5"
     # Now generate a small C source file that contains similarly-named stubs
     echo "/* Auto-generated file, do not edit */" > $TMPC
     local func var
     for func in $FUNCS; do
         echo "void $func(void) {}" >> $TMPC
     done
     for var in $VARS; do
         echo "int $var = 0;" >> $TMPC
     done

     # Build it with our cross-compiler. It will complain about conflicting
     # types for built-in functions, so just shut it up.
     COMMAND="$BINPREFIX-gcc -Wl,-shared,-Bsymbolic -nostdlib -o $TMPO $TMPC"
     echo "## COMMAND: $COMMAND" > $TMPL
     $COMMAND 1>>$TMPL 2>&1
     if [ $? != 0 ] ; then
         dump "ERROR: Can't generate shared library for: $LIBNAME"
         dump "See the content of $TMPC and $TMPL for details."
         cat $TMPL | tail -10
         exit 1
     fi

     # Copy to our destination now
     local libdir=$(dirname "$DSTFILE")
     mkdir -p "$libdir" && cp -f $TMPO "$DSTFILE"
     if [ $? != 0 ] ; then
         dump "ERROR: Can't copy shared library for: $LIBNAME"
         dump "target location is: $DSTFILE"
         exit 1
     fi

     if [ "$OPTION_DEBUG_LIBS" ]; then
       cp $TMPC $DSTFILE.c
       echo "$FUNCS" > $DSTFILE.functions.txt
       echo "$VARS" > $DSTFILE.variables.txt
     fi
 }

 # $1: Architecture
 # $2: symbol source directory (relative to $SRCDIR)
 # $3: destination directory for generated libs (relative to $DSTDIR)
 gen_shared_libraries ()
 {
     local ARCH=$1
     local SYMDIR="$SRCDIR/$2"
     local SYSROOT="$3"
     local DSTDIR="$DSTDIR/$SYSROOT/usr/lib"
     local TOOLCHAIN_PREFIX funcs vars numfuncs numvars

     # Let's locate the toolchain we're going to use
     local TOOLCHAIN_PREFIX="$NDK_DIR/$(get_default_toolchain_binprefix_for_arch $1)"
     TOOLCHAIN_PREFIX=${TOOLCHAIN_PREFIX%-}
     if [ ! -f "$TOOLCHAIN_PREFIX-gcc" ]; then
         dump "ERROR: $ARCH toolchain not installed: $TOOLCHAIN_PREFIX-gcc"
         dump "Important: Use the --minimal flag to use this script without generated system shared libraries."
         dump "This is generally useful when you want to generate the host cross-toolchain programs."
         exit 1
     fi

     # In certain cases, the symbols directory doesn't exist,
     # e.g. on x86 for PLATFORM < 9
     if [ ! -d "$SYMDIR" ]; then
         return
     fi

     # Let's list the libraries we're going to generate
     LIBS=$( (cd $SYMDIR && 2>/dev/null ls *.functions.txt) | sort -u | sed -e 's!\.functions\.txt$!!g')

     for LIB in $LIBS; do
         funcs=$(cat "$SYMDIR/$LIB.functions.txt" 2>/dev/null)
         vars=$(cat "$SYMDIR/$LIB.variables.txt" 2>/dev/null)
         funcs=$(remove_unwanted_function_symbols $ARCH libgcc.a $funcs)
         funcs=$(remove_unwanted_function_symbols $ARCH $LIB $funcs)
         vars=$(remove_unwanted_variable_symbols $ARCH $LIB $vars)
         numfuncs=$(echo $funcs | wc -w)
         numvars=$(echo $vars | wc -w)
         log "Generating $ARCH shared library for $LIB ($numfuncs functions + $numvars variables)"

         gen_shared_lib $LIB "$funcs" "$vars" "$DSTDIR/$LIB" "$TOOLCHAIN_PREFIX"
     done
 }

 # $1: platform number
 # $2: architecture name
 # $3: common source directory (for crtbrand.c, etc)
 # $4: source directory (for *.S files)
 # $5: destination directory
 gen_crt_objects ()
 {
     local API=$1
     local ARCH=$2
     local COMMON_SRC_DIR="$SRCDIR/$3"
     local SRC_DIR="$SRCDIR/$4"
     local DST_DIR="$DSTDIR/$5"
     local SRC_FILE DST_FILE
     local TOOLCHAIN_PREFIX

     if [ ! -d "$SRC_DIR" ]; then
         return
     fi

     # Let's locate the toolchain we're going to use
     local TOOLCHAIN_PREFIX="$NDK_DIR/$(get_default_toolchain_binprefix_for_arch $ARCH)"
     TOOLCHAIN_PREFIX=${TOOLCHAIN_PREFIX%-}
     if [ ! -f "$TOOLCHAIN_PREFIX-gcc" ]; then
         dump "ERROR: $ARCH toolchain not installed: $TOOLCHAIN_PREFIX-gcc"
         dump "Important: Use the --minimal flag to use this script without generating object files."
         dump "This is generally useful when you want to generate the host cross-toolchain programs."
         exit 1
     fi

     CRTBRAND_S=$DST_DIR/crtbrand.s
     log "Generating platform $API crtbrand assembly code: $CRTBRAND_S"
     (cd "$COMMON_SRC_DIR" && $TOOLCHAIN_PREFIX-gcc -DPLATFORM_SDK_VERSION=$API -fpic -S -o - crtbrand.c | \
         sed -e '/\.note\.ABI-tag/s/progbits/note/' > "$CRTBRAND_S") 1>>$TMPL 2>&1
     if [ $? != 0 ]; then
         dump "ERROR: Could not generate $CRTBRAND_S from $COMMON_SRC_DIR/crtbrand.c"
         dump "Please see the content of $TMPL for details!"
         cat $TMPL | tail -10
         exit 1
     fi

     for SRC_FILE in $(cd "$SRC_DIR" && ls crt*.[cS]); do
         DST_FILE=${SRC_FILE%%.c}
         DST_FILE=${DST_FILE%%.S}.o

         case "$DST_FILE" in
             "crtend.o")
                 # Special case: crtend.S must be compiled as crtend_android.o
                 # This is for long historical reasons, i.e. to avoid name conflicts
                 # in the past with other crtend.o files. This is hard-coded in the
                 # Android toolchain configuration, so switch the name here.
                 DST_FILE=crtend_android.o
                 ;;
             "crtbegin_dynamic.o"|"crtbegin_static.o")
                 # Add .note.ABI-tag section
                 SRC_FILE=$SRC_FILE" $CRTBRAND_S"
                 ;;
         esac

         log "Generating $ARCH C runtime object: $DST_FILE"
         (cd "$SRC_DIR" && $TOOLCHAIN_PREFIX-gcc -O2 -fpic -Wl,-r -nostdlib -o "$DST_DIR/$DST_FILE" $SRC_FILE) 1>>$TMPL 2>&1
         if [ $? != 0 ]; then
             dump "ERROR: Could not generate $DST_FILE from $SRC_DIR/$SRC_FILE"
             dump "Please see the content of $TMPL for details!"
             cat $TMPL | tail -10
             exit 1
         fi
     done
     rm -f "$CRTBRAND_S"
 }

 # $1: platform number
 # $2: architecture
 # $3: target NDK directory
 generate_api_level ()
 {
     local API=$1
     local ARCH=$2
     local HEADER="platforms/android-$API/arch-$ARCH/usr/include/android/api-level.h"
     log "Generating: $HEADER"
     rm -f "$3/$HEADER"  # Remove symlink if any.
     cat > "$3/$HEADER" <<EOF
 /*
  * Copyright (C) 2008 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *  * Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
 #ifndef ANDROID_API_LEVEL_H
 #define ANDROID_API_LEVEL_H

 #define __ANDROID_API__ $API

 #endif /* ANDROID_API_LEVEL_H */
 EOF
 }

 # Copy platform sysroot and samples into your destination
 #

 # if $SRC/android-$PLATFORM/arch-$ARCH exists
 #   $SRC/android-$PLATFORM/include --> $DST/android-$PLATFORM/arch-$ARCH/usr/include
 #   $SRC/android-$PLATFORM/arch-$ARCH/include --> $DST/android-$PLATFORM/arch-$ARCH/usr/include
 #   $SRC/android-$PLATFORM/arch-$ARCH/lib --> $DST/android-$PLATFORM/arch-$ARCH/usr/lib
 #
 if [ -z "$OPTION_OVERLAY" ]; then
     rm -rf $DSTDIR/platforms && mkdir -p $DSTDIR/platforms
 fi
 for ARCH in $ARCHS; do
     # Find first platform for this arch
     PREV_SYSROOT_DST=
     for PLATFORM in $PLATFORMS; do
         PLATFORM_DST=platforms/android-$PLATFORM   # Relative to $DSTDIR
         PLATFORM_SRC=$PLATFORM_DST                 # Relative to $SRCDIR
         SYSROOT_DST=$PLATFORM_DST/arch-$ARCH/usr
         # Skip over if there is no arch-specific file for this platform
         # and no destination platform directory was created. This is needed
         # because x86 and MIPS don't have files for API levels 3-8.
         if [ -z "$PREV_SYSROOT_DST" -a \
            ! -d "$SRCDIR/$PLATFORM_SRC/arch-$ARCH" ]; then
             log "Skipping: \$SRC/$PLATFORM_SRC/arch-$ARCH"
             continue
         fi

         log "Populating \$DST/platforms/android-$PLATFORM/arch-$ARCH"

         # If this is not the first destination directory, copy over, or
         # symlink the files from the previous one now.
         if [ "$PREV_SYSROOT_DST" ]; then
             if [ "$OPTION_FAST_COPY" ]; then
                 log "Copying \$DST/$PREV_SYSROOT_DST to \$DST/$SYSROOT_DST"
                 copy_directory "$DSTDIR/$PREV_SYSROOT_DST" "$DSTDIR/$SYSROOT_DST"
             else
                 log "Symlink-copying \$DST/$PREV_SYSROOT_DST to \$DST/$SYSROOT_DST"
                 symlink_src_directory $PREV_SYSROOT_DST $SYSROOT_DST
             fi
         fi

         # If this is the first destination directory, copy the common
         # files from previous platform directories into this one.
         # This helps copy the common headers from android-3 to android-8
         # into the x86 and mips android-9 directories.
         if [ -z "$PREV_SYSROOT_DST" ]; then
             for OLD_PLATFORM in $PLATFORMS; do
                 if [ "$OLD_PLATFORM" -eq "$PLATFORM" ]; then
                     break
                 fi
                 copy_src_directory platforms/android-$OLD_PLATFORM/include \
                                    $SYSROOT_DST/include \
                                    "common android-$OLD_PLATFORM headers"
             done
         fi

         # Now copy over all non-arch specific include files
         copy_src_directory $PLATFORM_SRC/include $SYSROOT_DST/include "common system headers"
         copy_src_directory $PLATFORM_SRC/arch-$ARCH/include $SYSROOT_DST/include "$ARCH system headers"

         generate_api_level "$PLATFORM" "$ARCH" "$DSTDIR"

         # If --minimal is not used, copy or generate binary files.
         if [ -z "$OPTION_MINIMAL" ]; then
             # Copy the prebuilt static libraries.
             copy_src_directory $PLATFORM_SRC/arch-$ARCH/lib $SYSROOT_DST/lib "$ARCH sysroot libs"

             # Generate C runtime object files when available
             PLATFORM_SRC_ARCH=$PLATFORM_SRC/arch-$ARCH/src
             if [ ! -d "$SRCDIR/$PLATFORM_SRC_ARCH" ]; then
                 PLATFORM_SRC_ARCH=$PREV_PLATFORM_SRC_ARCH
             else
                 PREV_PLATFORM_SRC_ARCH=$PLATFORM_SRC_ARCH
             fi
             gen_crt_objects $PLATFORM $ARCH platforms/common/src $PLATFORM_SRC_ARCH $SYSROOT_DST/lib

             # Generate shared libraries from symbol files
             gen_shared_libraries $ARCH $PLATFORM_SRC/arch-$ARCH/symbols $PLATFORM_DST/arch-$ARCH
         else
             # Copy the prebuilt binaries to bootstrap GCC
             copy_src_directory $PLATFORM_SRC/arch-$ARCH/lib-bootstrap $SYSROOT_DST/lib "$ARCH sysroot libs (boostrap)"
         fi
         PREV_SYSROOT_DST=$SYSROOT_DST
     done
 done

 #
 # $SRC/android-$PLATFORM/samples --> $DST/samples
 #
 if [ "$OPTION_SAMPLES" ] ; then
     # Copy platform samples and generic samples into your destination
     #
     # $SRC/samples/ --> $DST/samples/
     # $SRC/android-$PLATFORM/samples/ --> $DST/samples
     #
     dump "Copying generic samples"
     if [ -z "$OPTION_OVERLAY" ]; then
         rm -rf $DSTDIR/samples && mkdir -p $DSTDIR/samples
     fi
     copy_src_directory  samples samples samples

     for PLATFORM in $PLATFORMS; do
         dump "Copy android-$PLATFORM samples"
         # $SRC/platform-$PLATFORM/samples --> $DST/samples
         copy_src_directory platforms/android-$PLATFORM/samples samples samples
     done

     # Cleanup generated files in samples
     rm -rf "$DSTDIR/samples/*/obj"
     rm -rf "$DSTDIR/samples/*/libs"
 fi

 if [ "$PACKAGE_DIR" ]; then
     mkdir -p "$PACKAGE_DIR"
     fail_panic "Could not create package directory: $PACKAGE_DIR"
     ARCHIVE=platforms.tar.bz2
     dump "Packaging $ARCHIVE"
     pack_archive "$PACKAGE_DIR/$ARCHIVE" "$DSTDIR" "platforms"
     fail_panic "Could not package platforms"
     if [ "$OPTION_SAMPLES" ]; then
         ARCHIVE=samples.tar.bz2
         dump "Packaging $ARCHIVE"
         pack_archive "$PACKAGE_DIR/$ARCHIVE" "$DSTDIR" "samples"
         fail_panic "Could not package samples"
     fi
 fi

 log "Done !"
	#!/bin/sh
	#
	# Copyright (C) 2011 The Android Open Source Project
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.
	#
	# gen-platforms.sh
	#
	# This tool is used when packaging a new release, or when developing
	# the NDK itself. It will populate DST ($NDK/platforms by default)
	# with the content of SRC ($NDK/../development/ndk/platforms/ by default).
	#
	# The idea is that the content of $SRC/android-N/ only contains stuff
	# that is relevant to API level N, and not contain anything that is already
	# provided by API level N-1, N-2, etc..
	#
	# More precisely, for each architecture A:
	# $SRC/android-N/include --> $DST/android-N/arch-A/usr/include
	# $SRC/android-N/arch-A/include --> $DST/android-N/arch-A/usr/include
	# $SRC/android-N/arch-A/lib --> $DST/android-N/arch-A/usr/lib
	#
	# Also, we generate on-the-fly shared dynamic libraries from list of symbols:
	#
	# $SRC/android-N/arch-A/symbols --> $DST/android-N/arch-A/usr/lib
	#
	# Repeat after that for N+1, N+2, etc..
	#

	PROGDIR=$(dirname "$0")
	. "$PROGDIR/prebuilt-common.sh"

	# Return the list of platform supported from $1/platforms
	# as a single space-separated sorted list of levels. (e.g. "3 4 5 8 9 14")
	# $1: source directory
	extract_platforms_from ()
	{
	if [ -d "$1" ] ; then
	(cd "$1/platforms" && ls -d android-*) \| sed -e "s!android-!!" \| sort -g \| tr '\n' ' '
	else
	echo ""
	fi
	}

	SRCDIR="../development/ndk"
	DSTDIR="$ANDROID_NDK_ROOT"

	ARCHS="$DEFAULT_ARCHS"
	PLATFORMS=`extract_platforms_from "$SRCDIR"`
	NDK_DIR=$ANDROID_NDK_ROOT

	OPTION_HELP=no
	OPTION_PLATFORMS=
	OPTION_SRCDIR=
	OPTION_DSTDIR=
	OPTION_SAMPLES=
	OPTION_FAST_COPY=
	OPTION_MINIMAL=
	OPTION_ARCH=
	OPTION_ABI=
	OPTION_DEBUG_LIBS=
	OPTION_OVERLAY=
	PACKAGE_DIR=

	VERBOSE=no
	VERBOSE2=no

	for opt do
	optarg=`expr "x$opt" : 'x[^=]=\(.\)'`
	case "$opt" in
	--help\|-h\|-\?) OPTION_HELP=yes
	;;
	--verbose)
	if [ "$VERBOSE" = "yes" ] ; then
	VERBOSE2=yes
	else
	VERBOSE=yes
	fi
	;;
	--src-dir=*)
	OPTION_SRCDIR="$optarg"
	;;
	--dst-dir=*)
	OPTION_DSTDIR="$optarg"
	;;
	--ndk-dir=*)
	NDK_DIR=$optarg
	;;
	--platform=*)
	OPTION_PLATFORM=$optarg
	;;
	--arch=*)
	OPTION_ARCH=$optarg
	;;
	--abi=*) # We still support this for backwards-compatibility
	OPTION_ABI=$optarg
	;;
	--samples)
	OPTION_SAMPLES=yes
	;;
	--fast-copy)
	OPTION_FAST_COPY=yes
	;;
	--minimal)
	OPTION_MINIMAL=yes
	;;
	--package-dir=*)
	PACKAGE_DIR=$optarg
	;;
	--debug-libs)
	OPTION_DEBUG_LIBS=true
	;;
	--overlay)
	OPTION_OVERLAY=true
	;;
	*)
	echo "unknown option '$opt', use --help"
	exit 1
	esac
	done

	if [ $OPTION_HELP = "yes" ] ; then
	echo "Collect files from an Android NDK development tree and assemble"
	echo "the platform files appropriately into a final release structure."
	echo ""
	echo "options:"
	echo ""
	echo " --help Print this message"
	echo " --verbose Enable verbose messages"
	echo " --src-dir=<path> Source directory for development platform files [$SRCDIR]"
	echo " --dst-dir=<path> Destination directory [$DSTDIR]"
	echo " --ndk-dir=<path> Use toolchains from this NDK directory [$NDK_DIR]"
	echo " --platform=<list> List of API levels [$PLATFORMS]"
	echo " --arch=<list> List of CPU architectures [$ARCHS]"
	echo " --minimal Ignore samples, symlinks and generated shared libs."
	echo " --fast-copy Don't create symlinks, copy files instead"
	echo " --samples Also generate samples directories."
	echo " --package-dir=<path> Package platforms archive in specific path."
	echo " --debug-libs Also generate C source file for generated libraries."
	echo ""
	echo "Use the --minimal flag if you want to generate minimal sysroot directories"
	echo "that will be used to generate prebuilt toolchains. Otherwise, the script"
	echo "will require these toolchains to be pre-installed and will use them to"
	echo "generate shared system shared libraries from the symbol list files."
	exit 0
	fi

	if [ -n "$OPTION_SRCDIR" ] ; then
	SRCDIR="$OPTION_SRCDIR";
	if [ ! -d "$SRCDIR" ] ; then
	echo "ERROR: Source directory $SRCDIR does not exist !"
	exit 1
	fi
	if [ ! -d "$SRCDIR/platforms/android-3" ] ; then
	echo "ERROR: Invalid source directory: $SRCDIR"
	echo "Please make sure it contains platforms/android-3 etc..."
	exit 1
	fi
	else
	SRCDIR=`dirname $ANDROID_NDK_ROOT`/development/ndk
	log "Using source directory: $SRCDIR"
	fi

	if [ -n "$OPTION_PLATFORM" ] ; then
	PLATFORMS=$(commas_to_spaces $OPTION_PLATFORM)
	else
	# Build the list from the content of SRCDIR
	PLATFORMS=`extract_platforms_from "$SRCDIR"`
	log "Using platforms: $PLATFORMS"
	fi

	# Remove the android- prefix of any platform name
	PLATFORMS=$(echo $PLATFORMS \| tr ' ' '\n' \| sed -e 's!^android-!!g' \| tr '\n' ' ')

	if [ -n "$OPTION_DSTDIR" ] ; then
	DSTDIR="$OPTION_DSTDIR"
	else
	log "Using destination directory: $DSTDIR"
	fi

	# Handle architecture list
	#
	# We support both --arch and --abi for backwards compatibility reasons
	# --arch is the new hotness, --abi is deprecated.
	#
	if [ -n "$OPTION_ARCH" ]; then
	OPTION_ARCH=$(commas_to_spaces $OPTION_ARCH)
	fi

	if [ -n "$OPTION_ABI" ] ; then
	echo "WARNING: --abi=<names> is deprecated. Use --arch=<names> instead!"
	OPTION_ABI=$(commas_to_spaces $OPTION_ABI)
	if [ -n "$OPTION_ARCH" -a "$OPTION_ARCH" != "$OPTION_ABI" ]; then
	echo "ERROR: You can't use both --abi and --arch with different values!"
	exit 1
	fi
	OPTION_ARCH=$OPTION_ABI
	fi

	if [ -n "$OPTION_ARCH" ] ; then
	ARCHS="$OPTION_ARCH"
	fi
	log "Using architectures: $(commas_to_spaces $ARCHS)"

	log "Checking source platforms."
	for PLATFORM in $PLATFORMS; do
	DIR="$SRCDIR/platforms/android-$PLATFORM"
	if [ ! -d $DIR ] ; then
	echo "ERROR: Directory missing: $DIR"
	echo "Please check your --platform=<list> option and try again."
	exit 2
	else
	log " $DIR"
	fi
	done

	log "Checking source platform architectures."
	BAD_ARCHS=
	for ARCH in $ARCHS; do
	eval CHECK_$ARCH=no
	done
	for PLATFORM in $PLATFORMS; do
	for ARCH in $ARCHS; do
	DIR="$SRCDIR/platforms/android-$PLATFORM/arch-$ARCH"
	if [ -d $DIR ] ; then
	log " $DIR"
	eval CHECK_$ARCH=yes
	fi
	done
	done

	if [ "$OPTION_MINIMAL" ]; then
	OPTION_SAMPLES=
	OPTION_FAST_COPY=yes
	fi

	BAD_ARCHS=
	for ARCH in $ARCHS; do
	CHECK=`var_value CHECK_$ARCH`
	log " $ARCH check: $CHECK"
	if [ "$CHECK" = no ] ; then
	if [ -z "$BAD_ARCHS" ] ; then
	BAD_ARCHS=$ARCH
	else
	BAD_ARCHS="$BAD_ARCHS $ARCH"
	fi
	fi
	done

	if [ -n "$BAD_ARCHS" ] ; then
	echo "ERROR: Source directory doesn't support these ARCHs: $BAD_ARCHS"
	exit 3
	fi

	# $1: source directory (relative to $SRCDIR)
	# $2: destination directory (relative to $DSTDIR)
	# $3: description of directory contents (e.g. "sysroot" or "samples")
	copy_src_directory ()
	{
	local SDIR="$SRCDIR/$1"
	local DDIR="$DSTDIR/$2"
	if [ -d "$SDIR" ] ; then
	log "Copying $3 from \$SRC/$1 to \$DST/$2."
	mkdir -p "$DDIR" && (cd "$SDIR" && 2>/dev/null tar chf - *) \| (tar xf - -C "$DDIR")
	if [ $? != 0 ] ; then
	echo "ERROR: Could not copy $3 directory $SDIR into $DDIR !"
	exit 5
	fi
	fi
	}

	# $1: source dir
	# $2: destination dir
	# $3: reverse path
	#
	symlink_src_directory_inner ()
	{
	local files file subdir rev
	mkdir -p "$DSTDIR/$2"
	rev=$3
	files=$(cd $DSTDIR/$1 && ls -1p)
	for file in $files; do
	if [ "$file" = "${file%%/}" ]; then
	log2 "Link \$DST/$2/$file --> $rev/$1/$file"
	ln -s $rev/$1/$file $DSTDIR/$2/$file
	else
	file=${file%%/}
	symlink_src_directory_inner "$1/$file" "$2/$file" "$rev/.."
	fi
	done
	}
	# Create a symlink-copy of directory $1 into $2
	# This function is recursive.
	#
	# $1: source directory (relative to $SRCDIR)
	# $2: destination directory (relative to $DSTDIR)
	symlink_src_directory ()
	{
	symlink_src_directory_inner "$1" "$2" "$(reverse_path $1)"
	}

	# Remove unwanted symbols
	# $1: symbol file (one symbol per line)
	# $2+: Input symbol list
	# Out: Input symbol file, without any unwanted symbol listed by $1
	remove_unwanted_symbols_from ()
	{
	local SYMBOL_FILE="$1"
	shift
	if [ -f "$SYMBOL_FILE" ]; then
	echo "$@" \| tr ' ' '\n' \| grep -v -F -x -f $SYMBOL_FILE \| tr '\n' ' '
	else
	echo "$@"
	fi
	}

	# Remove unwanted symbols from a library's functions list.
	# $1: Architecture name
	# $2: Library name (e.g. libc.so)
	# $3+: Input symbol list
	# Out: Input symbol list without any unwanted symbols.
	remove_unwanted_function_symbols ()
	{
	local ARCH LIBRARY SYMBOL_FILE
	ARCH=$1
	LIBRARY=$2
	shift; shift
	SYMBOL_FILE=$PROGDIR/unwanted-symbols/$ARCH/$LIBRARY.functions.txt
	remove_unwanted_symbols_from $SYMBOL_FILE "$@"
	}

	# Same as remove_unwanted_functions_symbols, but for variable names.
	#
	remove_unwanted_variable_symbols ()
	{
	local ARCH LIBRARY SYMBOL_FILE
	ARCH=$1
	LIBRARY=$2
	shift; shift
	SYMBOL_FILE=$PROGDIR/unwanted-symbols/$ARCH/$LIBRARY.variables.txt
	remove_unwanted_symbols_from $SYMBOL_FILE "$@"
	}

	# $1: library name
	# $2: functions list
	# $3: variables list
	# $4: destination file
	# $5: toolchain binprefix
	gen_shared_lib ()
	{
	local LIBRARY=$1
	local FUNCS="$2"
	local VARS="$3"
	local DSTFILE="$4"
	local BINPREFIX="$5"
	# Now generate a small C source file that contains similarly-named stubs
	echo "/* Auto-generated file, do not edit */" > $TMPC
	local func var
	for func in $FUNCS; do
	echo "void $func(void) {}" >> $TMPC
	done
	for var in $VARS; do
	echo "int $var = 0;" >> $TMPC
	done

	# Build it with our cross-compiler. It will complain about conflicting
	# types for built-in functions, so just shut it up.
	COMMAND="$BINPREFIX-gcc -Wl,-shared,-Bsymbolic -nostdlib -o $TMPO $TMPC"
	echo "## COMMAND: $COMMAND" > $TMPL
	$COMMAND 1>>$TMPL 2>&1
	if [ $? != 0 ] ; then
	dump "ERROR: Can't generate shared library for: $LIBNAME"
	dump "See the content of $TMPC and $TMPL for details."
	cat $TMPL \| tail -10
	exit 1
	fi

	# Copy to our destination now
	local libdir=$(dirname "$DSTFILE")
	mkdir -p "$libdir" && cp -f $TMPO "$DSTFILE"
	if [ $? != 0 ] ; then
	dump "ERROR: Can't copy shared library for: $LIBNAME"
	dump "target location is: $DSTFILE"
	exit 1
	fi

	if [ "$OPTION_DEBUG_LIBS" ]; then
	cp $TMPC $DSTFILE.c
	echo "$FUNCS" > $DSTFILE.functions.txt
	echo "$VARS" > $DSTFILE.variables.txt
	fi
	}

	# $1: Architecture
	# $2: symbol source directory (relative to $SRCDIR)
	# $3: destination directory for generated libs (relative to $DSTDIR)
	gen_shared_libraries ()
	{
	local ARCH=$1
	local SYMDIR="$SRCDIR/$2"
	local SYSROOT="$3"
	local DSTDIR="$DSTDIR/$SYSROOT/usr/lib"
	local TOOLCHAIN_PREFIX funcs vars numfuncs numvars

	# Let's locate the toolchain we're going to use
	local TOOLCHAIN_PREFIX="$NDK_DIR/$(get_default_toolchain_binprefix_for_arch $1)"
	TOOLCHAIN_PREFIX=${TOOLCHAIN_PREFIX%-}
	if [ ! -f "$TOOLCHAIN_PREFIX-gcc" ]; then
	dump "ERROR: $ARCH toolchain not installed: $TOOLCHAIN_PREFIX-gcc"
	dump "Important: Use the --minimal flag to use this script without generated system shared libraries."
	dump "This is generally useful when you want to generate the host cross-toolchain programs."
	exit 1
	fi

	# In certain cases, the symbols directory doesn't exist,
	# e.g. on x86 for PLATFORM < 9
	if [ ! -d "$SYMDIR" ]; then
	return
	fi

	# Let's list the libraries we're going to generate
	LIBS=$( (cd $SYMDIR && 2>/dev/null ls *.functions.txt) \| sort -u \| sed -e 's!\.functions\.txt$!!g')

	for LIB in $LIBS; do
	funcs=$(cat "$SYMDIR/$LIB.functions.txt" 2>/dev/null)
	vars=$(cat "$SYMDIR/$LIB.variables.txt" 2>/dev/null)
	funcs=$(remove_unwanted_function_symbols $ARCH libgcc.a $funcs)
	funcs=$(remove_unwanted_function_symbols $ARCH $LIB $funcs)
	vars=$(remove_unwanted_variable_symbols $ARCH $LIB $vars)
	numfuncs=$(echo $funcs \| wc -w)
	numvars=$(echo $vars \| wc -w)
	log "Generating $ARCH shared library for $LIB ($numfuncs functions + $numvars variables)"

	gen_shared_lib $LIB "$funcs" "$vars" "$DSTDIR/$LIB" "$TOOLCHAIN_PREFIX"
	done
	}

	# $1: platform number
	# $2: architecture name
	# $3: common source directory (for crtbrand.c, etc)
	# $4: source directory (for *.S files)
	# $5: destination directory
	gen_crt_objects ()
	{
	local API=$1
	local ARCH=$2
	local COMMON_SRC_DIR="$SRCDIR/$3"
	local SRC_DIR="$SRCDIR/$4"
	local DST_DIR="$DSTDIR/$5"
	local SRC_FILE DST_FILE
	local TOOLCHAIN_PREFIX

	if [ ! -d "$SRC_DIR" ]; then
	return
	fi

	# Let's locate the toolchain we're going to use
	local TOOLCHAIN_PREFIX="$NDK_DIR/$(get_default_toolchain_binprefix_for_arch $ARCH)"
	TOOLCHAIN_PREFIX=${TOOLCHAIN_PREFIX%-}
	if [ ! -f "$TOOLCHAIN_PREFIX-gcc" ]; then
	dump "ERROR: $ARCH toolchain not installed: $TOOLCHAIN_PREFIX-gcc"
	dump "Important: Use the --minimal flag to use this script without generating object files."
	dump "This is generally useful when you want to generate the host cross-toolchain programs."
	exit 1
	fi

	CRTBRAND_S=$DST_DIR/crtbrand.s
	log "Generating platform $API crtbrand assembly code: $CRTBRAND_S"
	(cd "$COMMON_SRC_DIR" && $TOOLCHAIN_PREFIX-gcc -DPLATFORM_SDK_VERSION=$API -fpic -S -o - crtbrand.c \| \
	sed -e '/\.note\.ABI-tag/s/progbits/note/' > "$CRTBRAND_S") 1>>$TMPL 2>&1
	if [ $? != 0 ]; then
	dump "ERROR: Could not generate $CRTBRAND_S from $COMMON_SRC_DIR/crtbrand.c"
	dump "Please see the content of $TMPL for details!"
	cat $TMPL \| tail -10
	exit 1
	fi

	for SRC_FILE in $(cd "$SRC_DIR" && ls crt*.[cS]); do
	DST_FILE=${SRC_FILE%%.c}
	DST_FILE=${DST_FILE%%.S}.o

	case "$DST_FILE" in
	"crtend.o")
	# Special case: crtend.S must be compiled as crtend_android.o
	# This is for long historical reasons, i.e. to avoid name conflicts
	# in the past with other crtend.o files. This is hard-coded in the
	# Android toolchain configuration, so switch the name here.
	DST_FILE=crtend_android.o
	;;
	"crtbegin_dynamic.o"\|"crtbegin_static.o")
	# Add .note.ABI-tag section
	SRC_FILE=$SRC_FILE" $CRTBRAND_S"
	;;
	esac

	log "Generating $ARCH C runtime object: $DST_FILE"
	(cd "$SRC_DIR" && $TOOLCHAIN_PREFIX-gcc -O2 -fpic -Wl,-r -nostdlib -o "$DST_DIR/$DST_FILE" $SRC_FILE) 1>>$TMPL 2>&1
	if [ $? != 0 ]; then
	dump "ERROR: Could not generate $DST_FILE from $SRC_DIR/$SRC_FILE"
	dump "Please see the content of $TMPL for details!"
	cat $TMPL \| tail -10
	exit 1
	fi
	done
	rm -f "$CRTBRAND_S"
	}

	# $1: platform number
	# $2: architecture
	# $3: target NDK directory
	generate_api_level ()
	{
	local API=$1
	local ARCH=$2
	local HEADER="platforms/android-$API/arch-$ARCH/usr/include/android/api-level.h"
	log "Generating: $HEADER"
	rm -f "$3/$HEADER" # Remove symlink if any.
	cat > "$3/$HEADER" <<EOF
	/*
	* Copyright (C) 2008 The Android Open Source Project
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* * Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* * Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in
	* the documentation and/or other materials provided with the
	* distribution.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
	* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
	* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
	* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
	* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
	* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.
	*/
	#ifndef ANDROID_API_LEVEL_H
	#define ANDROID_API_LEVEL_H

	#define __ANDROID_API__ $API

	#endif /* ANDROID_API_LEVEL_H */
	EOF
	}

	# Copy platform sysroot and samples into your destination
	#

	# if $SRC/android-$PLATFORM/arch-$ARCH exists
	# $SRC/android-$PLATFORM/include --> $DST/android-$PLATFORM/arch-$ARCH/usr/include
	# $SRC/android-$PLATFORM/arch-$ARCH/include --> $DST/android-$PLATFORM/arch-$ARCH/usr/include
	# $SRC/android-$PLATFORM/arch-$ARCH/lib --> $DST/android-$PLATFORM/arch-$ARCH/usr/lib
	#
	if [ -z "$OPTION_OVERLAY" ]; then
	rm -rf $DSTDIR/platforms && mkdir -p $DSTDIR/platforms
	fi
	for ARCH in $ARCHS; do
	# Find first platform for this arch
	PREV_SYSROOT_DST=
	for PLATFORM in $PLATFORMS; do
	PLATFORM_DST=platforms/android-$PLATFORM # Relative to $DSTDIR
	PLATFORM_SRC=$PLATFORM_DST # Relative to $SRCDIR
	SYSROOT_DST=$PLATFORM_DST/arch-$ARCH/usr
	# Skip over if there is no arch-specific file for this platform
	# and no destination platform directory was created. This is needed
	# because x86 and MIPS don't have files for API levels 3-8.
	if [ -z "$PREV_SYSROOT_DST" -a \
	! -d "$SRCDIR/$PLATFORM_SRC/arch-$ARCH" ]; then
	log "Skipping: \$SRC/$PLATFORM_SRC/arch-$ARCH"
	continue
	fi

	log "Populating \$DST/platforms/android-$PLATFORM/arch-$ARCH"

	# If this is not the first destination directory, copy over, or
	# symlink the files from the previous one now.
	if [ "$PREV_SYSROOT_DST" ]; then
	if [ "$OPTION_FAST_COPY" ]; then
	log "Copying \$DST/$PREV_SYSROOT_DST to \$DST/$SYSROOT_DST"
	copy_directory "$DSTDIR/$PREV_SYSROOT_DST" "$DSTDIR/$SYSROOT_DST"
	else
	log "Symlink-copying \$DST/$PREV_SYSROOT_DST to \$DST/$SYSROOT_DST"
	symlink_src_directory $PREV_SYSROOT_DST $SYSROOT_DST
	fi
	fi

	# If this is the first destination directory, copy the common
	# files from previous platform directories into this one.
	# This helps copy the common headers from android-3 to android-8
	# into the x86 and mips android-9 directories.
	if [ -z "$PREV_SYSROOT_DST" ]; then
	for OLD_PLATFORM in $PLATFORMS; do
	if [ "$OLD_PLATFORM" -eq "$PLATFORM" ]; then
	break
	fi
	copy_src_directory platforms/android-$OLD_PLATFORM/include \
	$SYSROOT_DST/include \
	"common android-$OLD_PLATFORM headers"
	done
	fi

	# Now copy over all non-arch specific include files
	copy_src_directory $PLATFORM_SRC/include $SYSROOT_DST/include "common system headers"
	copy_src_directory $PLATFORM_SRC/arch-$ARCH/include $SYSROOT_DST/include "$ARCH system headers"

	generate_api_level "$PLATFORM" "$ARCH" "$DSTDIR"

	# If --minimal is not used, copy or generate binary files.
	if [ -z "$OPTION_MINIMAL" ]; then
	# Copy the prebuilt static libraries.
	copy_src_directory $PLATFORM_SRC/arch-$ARCH/lib $SYSROOT_DST/lib "$ARCH sysroot libs"

	# Generate C runtime object files when available
	PLATFORM_SRC_ARCH=$PLATFORM_SRC/arch-$ARCH/src
	if [ ! -d "$SRCDIR/$PLATFORM_SRC_ARCH" ]; then
	PLATFORM_SRC_ARCH=$PREV_PLATFORM_SRC_ARCH
	else
	PREV_PLATFORM_SRC_ARCH=$PLATFORM_SRC_ARCH
	fi
	gen_crt_objects $PLATFORM $ARCH platforms/common/src $PLATFORM_SRC_ARCH $SYSROOT_DST/lib

	# Generate shared libraries from symbol files
	gen_shared_libraries $ARCH $PLATFORM_SRC/arch-$ARCH/symbols $PLATFORM_DST/arch-$ARCH
	else
	# Copy the prebuilt binaries to bootstrap GCC
	copy_src_directory $PLATFORM_SRC/arch-$ARCH/lib-bootstrap $SYSROOT_DST/lib "$ARCH sysroot libs (boostrap)"
	fi
	PREV_SYSROOT_DST=$SYSROOT_DST
	done
	done

	#
	# $SRC/android-$PLATFORM/samples --> $DST/samples
	#
	if [ "$OPTION_SAMPLES" ] ; then
	# Copy platform samples and generic samples into your destination
	#
	# $SRC/samples/ --> $DST/samples/
	# $SRC/android-$PLATFORM/samples/ --> $DST/samples
	#
	dump "Copying generic samples"
	if [ -z "$OPTION_OVERLAY" ]; then
	rm -rf $DSTDIR/samples && mkdir -p $DSTDIR/samples
	fi
	copy_src_directory samples samples samples

	for PLATFORM in $PLATFORMS; do
	dump "Copy android-$PLATFORM samples"
	# $SRC/platform-$PLATFORM/samples --> $DST/samples
	copy_src_directory platforms/android-$PLATFORM/samples samples samples
	done

	# Cleanup generated files in samples
	rm -rf "$DSTDIR/samples/*/obj"
	rm -rf "$DSTDIR/samples/*/libs"
	fi

	if [ "$PACKAGE_DIR" ]; then
	mkdir -p "$PACKAGE_DIR"
	fail_panic "Could not create package directory: $PACKAGE_DIR"
	ARCHIVE=platforms.tar.bz2
	dump "Packaging $ARCHIVE"
	pack_archive "$PACKAGE_DIR/$ARCHIVE" "$DSTDIR" "platforms"
	fail_panic "Could not package platforms"
	if [ "$OPTION_SAMPLES" ]; then
	ARCHIVE=samples.tar.bz2
	dump "Packaging $ARCHIVE"
	pack_archive "$PACKAGE_DIR/$ARCHIVE" "$DSTDIR" "samples"
	fail_panic "Could not package samples"
	fi
	fi

	log "Done !"