1#!/bin/sh 2# 3# Copyright (C) 2010 The Android Open Source Project 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16# 17# This shell script is used to rebuild the gdbserver binary from 18# the Android NDK's prebuilt binaries. 19# 20 21# include common function and variable definitions 22. `dirname $0`/prebuilt-common.sh 23 24PROGRAM_PARAMETERS="<src-dir> <ndk-dir> <toolchain>" 25 26PROGRAM_DESCRIPTION=\ 27"Rebuild the gdbserver prebuilt binary for the Android NDK toolchain. 28 29Where <src-dir> is the location of the gdbserver sources, 30<ndk-dir> is the top-level NDK installation path and <toolchain> 31is the name of the toolchain to use (e.g. arm-linux-androideabi-4.4.3). 32 33The final binary is placed under: 34 35 <ndk-dir>/toolchains <toolchain>/prebuilt/gdbserver 36 37NOTE: The --platform option is ignored if --sysroot is used." 38 39VERBOSE=no 40 41OPTION_BUILD_OUT= 42BUILD_OUT=/tmp/ndk-$USER/build/gdbserver 43register_option "--build-out=<path>" do_build_out "Set temporary build directory" 44do_build_out () { OPTION_BUILD_OUT="$1"; } 45 46PLATFORM=$DEFAULT_PLATFORM 47register_var_option "--platform=<name>" PLATFORM "Target specific platform" 48 49SYSROOT= 50if [ -d $TOOLCHAIN_PATH/sysroot ] ; then 51 SYSROOT=$TOOLCHAIN_PATH/sysroot 52fi 53register_var_option "--sysroot=<path>" SYSROOT "Specify sysroot directory directly" 54 55NOTHREADS=no 56register_var_option "--disable-threads" NOTHREADS "Disable threads support" 57 58GDB_VERSION=$DEFAULT_GDB_VERSION 59register_var_option "--gdb-version=<name>" GDB_VERSION "Use specific gdb version." 60 61PACKAGE_DIR= 62register_var_option "--package-dir=<path>" PACKAGE_DIR "Archive binary into specific directory" 63 64register_jobs_option 65 66extract_parameters "$@" 67 68setup_default_log_file 69 70set_parameters () 71{ 72 SRC_DIR="$1" 73 NDK_DIR="$2" 74 TOOLCHAIN="$3" 75 76 # Check source directory 77 # 78 if [ -z "$SRC_DIR" ] ; then 79 echo "ERROR: Missing source directory parameter. See --help for details." 80 exit 1 81 fi 82 83 SRC_DIR2="$SRC_DIR/gdb/gdb-$GDB_VERSION/gdb/gdbserver" 84 if [ -d "$SRC_DIR2" ] ; then 85 SRC_DIR="$SRC_DIR2" 86 log "Found gdbserver source directory: $SRC_DIR" 87 fi 88 89 if [ ! -f "$SRC_DIR/gdbreplay.c" ] ; then 90 echo "ERROR: Source directory does not contain gdbserver sources: $SRC_DIR" 91 exit 1 92 fi 93 94 log "Using source directory: $SRC_DIR" 95 96 # Check NDK installation directory 97 # 98 if [ -z "$NDK_DIR" ] ; then 99 echo "ERROR: Missing NDK directory parameter. See --help for details." 100 exit 1 101 fi 102 103 if [ ! -d "$NDK_DIR" ] ; then 104 echo "ERROR: NDK directory does not exist: $NDK_DIR" 105 exit 1 106 fi 107 108 log "Using NDK directory: $NDK_DIR" 109 110 # Check toolchain name 111 # 112 if [ -z "$TOOLCHAIN" ] ; then 113 echo "ERROR: Missing toolchain name parameter. See --help for details." 114 exit 1 115 fi 116} 117 118set_parameters $PARAMETERS 119 120if [ "$PACKAGE_DIR" ]; then 121 mkdir -p "$PACKAGE_DIR" 122 fail_panic "Could not create package directory: $PACKAGE_DIR" 123fi 124 125prepare_target_build 126 127parse_toolchain_name $TOOLCHAIN 128check_toolchain_install $NDK_DIR $TOOLCHAIN 129 130# Check build directory 131# 132fix_sysroot "$SYSROOT" 133log "Using sysroot: $SYSROOT" 134 135if [ -n "$OPTION_BUILD_OUT" ] ; then 136 BUILD_OUT="$OPTION_BUILD_OUT" 137fi 138log "Using build directory: $BUILD_OUT" 139run mkdir -p "$BUILD_OUT" 140 141# Copy the sysroot to a temporary build directory 142BUILD_SYSROOT="$BUILD_OUT/sysroot" 143run mkdir -p "$BUILD_SYSROOT" 144run cp -RHL "$SYSROOT"/* "$BUILD_SYSROOT" 145 146# Remove libthread_db to ensure we use exactly the one we want. 147rm -f $BUILD_SYSROOT/usr/lib/libthread_db* 148rm -f $BUILD_SYSROOT/usr/include/thread_db.h 149 150if [ "$NOTHREADS" != "yes" ] ; then 151 # We're going to rebuild libthread_db.o from its source 152 # that is under sources/android/libthread_db and place its header 153 # and object file into the build sysroot. 154 LIBTHREAD_DB_DIR=$ANDROID_NDK_ROOT/sources/android/libthread_db/gdb-$GDB_VERSION 155 if [ ! -d "$LIBTHREAD_DB_DIR" ] ; then 156 dump "ERROR: Missing directory: $LIBTHREAD_DB_DIR" 157 exit 1 158 fi 159 # Small trick, to avoid calling ar, we store the single object file 160 # with an .a suffix. The linker will handle that seamlessly. 161 run cp $LIBTHREAD_DB_DIR/thread_db.h $BUILD_SYSROOT/usr/include/ 162 run $TOOLCHAIN_PREFIX-gcc --sysroot=$BUILD_SYSROOT -o $BUILD_SYSROOT/usr/lib/libthread_db.o -c $LIBTHREAD_DB_DIR/libthread_db.c 163 run $TOOLCHAIN_PREFIX-ar -r $BUILD_SYSROOT/usr/lib/libthread_db.a $BUILD_SYSROOT/usr/lib/libthread_db.o 164 if [ $? != 0 ] ; then 165 dump "ERROR: Could not compile libthread_db.c!" 166 exit 1 167 fi 168fi 169 170log "Using build sysroot: $BUILD_SYSROOT" 171 172# configure the gdbserver build now 173dump "Configure: $TOOLCHAIN gdbserver-$GDB_VERSION build." 174OLD_CC="$CC" 175OLD_CFLAGS="$CFLAGS" 176OLD_LDFLAGS="$LDFLAGS" 177 178INCLUDE_DIRS=\ 179"-I$TOOLCHAIN_PATH/lib/gcc/$ABI_CONFIGURE_TARGET/$GCC_VERSION/include \ 180-I$BUILD_SYSROOT/usr/include" 181CRTBEGIN="$BUILD_SYSROOT/usr/lib/crtbegin_static.o" 182CRTEND="$BUILD_SYSROOT/usr/lib/crtend_android.o" 183 184# Note: we must put a second -lc after -lgcc to resolve a cyclical 185# dependency on arm-linux-androideabi, where libgcc.a contains 186# a function (__div0) which depends on raise(), implemented 187# in the C library. 188# 189LIBRARY_LDFLAGS="$CRTBEGIN -lc -lm -lgcc -lc $CRTEND " 190 191case "$GDB_VERSION" in 192 6.6) 193 CONFIGURE_FLAGS="--with-sysroot=$BUILD_SYSROOT" 194 ;; 195 7.1.x) 196 # This flag is required to link libthread_db statically to our 197 # gdbserver binary. Otherwise, the program will try to dlopen() 198 # the threads binary, which is not possible since we build a 199 # static executable. 200 CONFIGURE_FLAGS="--with-libthread-db=$BUILD_SYSROOT/usr/lib/libthread_db.a" 201 ;; 202 *) 203 CONFIGURE_FLAGS="" 204esac 205 206cd $BUILD_OUT && 207export CC="$TOOLCHAIN_PREFIX-gcc --sysroot=$BUILD_SYSROOT" && 208export CFLAGS="-O2 -nostdinc -nostdlib -D__ANDROID__ -DANDROID -DSTDC_HEADERS $INCLUDE_DIRS $GDBSERVER_CFLAGS" && 209export LDFLAGS="-static -Wl,-z,nocopyreloc -Wl,--no-undefined $LIBRARY_LDFLAGS $GDBSERVER_LDFLAGS" && 210run $SRC_DIR/configure \ 211--host=$GDBSERVER_HOST \ 212$CONFIGURE_FLAGS 213if [ $? != 0 ] ; then 214 dump "Could not configure gdbserver build. See $TMPLOG" 215 exit 1 216fi 217CC="$OLD_CC" 218CFLAGS="$OLD_CFLAGS" 219LDFLAGS="$OLD_LDFLAGS" 220 221# build gdbserver 222dump "Building : $TOOLCHAIN gdbserver." 223cd $BUILD_OUT && 224run make -j$NUM_JOBS 225if [ $? != 0 ] ; then 226 dump "Could not build $TOOLCHAIN gdbserver. Use --verbose to see why." 227 exit 1 228fi 229 230# install gdbserver 231# 232# note that we install it in the toolchain bin directory 233# not in $SYSROOT/usr/bin 234# 235if [ "$NOTHREADS" = "yes" ] ; then 236 DSTFILE="gdbserver-nothreads" 237else 238 DSTFILE="gdbserver" 239fi 240dump "Install : $TOOLCHAIN $DSTFILE." 241DEST=`dirname $TOOLCHAIN_PATH` 242mkdir -p $DEST && 243run $TOOLCHAIN_PREFIX-objcopy --strip-unneeded $BUILD_OUT/gdbserver $DEST/$DSTFILE 244if [ $? != 0 ] ; then 245 dump "Could not install $DSTFILE. See $TMPLOG" 246 exit 1 247fi 248 249if [ "$PACKAGE_DIR" ]; then 250 ARCHIVE=$TOOLCHAIN-gdbserver.tar.bz2 251 SUBDIR=$(dirname $(get_toolchain_install_subdir $TOOLCHAIN $HOST_TAG)) 252 dump "Packaging: $ARCHIVE" 253 pack_archive "$PACKAGE_DIR/$ARCHIVE" "$NDK_DIR" "$SUBDIR/$DSTFILE" 254fi 255 256log "Cleaning up." 257if [ -z "$OPTION_BUILD_OUT" ] ; then 258 run rm -rf $BUILD_OUT 259fi 260 261dump "Done." 262