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      1 #!/bin/bash
      2 #
      3 # Copyright (C) 2012 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 
     18 # This script is useful for learning the path of the active toolchain
     19 # components within the ndk.
     20 # Run this script without parameters, for usage hints.
     21 
     22 # show usage if no parameter given
     23 WHICH=$1
     24 if [ "$WHICH" == "" ]; then
     25   echo "USAGE: ndk-which <tool>"
     26   echo "where tool is 'gdb', 'gcc', 'objdump', etc."
     27   exit 1
     28 fi
     29 
     30 MYNDKDIR=`dirname $0`
     31 
     32 # create a temporary skeleton project so that we can leverage build-local.mk
     33 TMPDIR=/tmp/ndk-which-$$
     34 mkdir -p $TMPDIR/jni
     35 cat >$TMPDIR/jni/Android.mk << "END_OF_FILE"
     36 include $(CLEAR_VARS)
     37 END_OF_FILE
     38 
     39 # 'get_build_var_for_abi' was copied from ndk-gdb
     40 get_build_var_for_abi ()
     41 {
     42     if [ -z "$GNUMAKE" ] ; then
     43         GNUMAKE=make
     44     fi
     45     NDK_PROJECT_PATH=$TMPDIR $GNUMAKE --no-print-dir -f $MYNDKDIR/build/core/build-local.mk DUMP_$1 APP_ABI=$2
     46 }
     47 
     48 TOOLCHAIN_PREFIX=`get_build_var_for_abi TOOLCHAIN_PREFIX armeabi`
     49 rm -Rf $TMPDIR
     50 
     51 # fully qualified file name
     52 FQFN=${TOOLCHAIN_PREFIX}$WHICH
     53 
     54 # use the host system's 'which' to decide/report if the file exists or not, and is executable
     55 which "$FQFN"
     56 
     57