build_android.sh

#!/bin/bash

BUILD_PREFIX="/data/data/com.systemtap.android/stap/"
OUTPUT_DIR="android_binaries"
STAPIO_BIN="staprun/stapio"
STAPRUN_BIN="staprun/staprun"
ARCH=${ARCH:-ARM}

case ${ARCH} in
ARM)
	COMPILER_PREFIX_LIST=("arm-none-linux-gnueabi" "arm-unknown-linux-gnueabi")
	;;
AARCH64)
	COMPILER_PREFIX_LIST=("aarch64-linux-gnu")
	;;
esac

function checkCompiler()
{
	for cur_compiler_prefix in ${COMPILER_PREFIX_LIST[@]}
	do
		RET=`${cur_compiler_prefix}-gcc --version 2>&1`
		if [ $? -eq 0 ];
		then
			COMPILER_PREFIX=${cur_compiler_prefix}
			return
		fi
	done;

	echo "No suitable compiler found. Check your PATH" >&2
	exit 1
}

checkCompiler

STAP_ANDROID_PREFIX="/data/data/com.systemtap.android/"

cd src
# A bit of manually tuning of bindir and libexecdir.
# This way stap{run,io} can both be stored in ${STAP_ANDROID_PREFIX}, and be executed *without* setting the environment variables SYSTEMTAP_STAP{IO,RUN}.
./configure --prefix=${STAP_ANDROID_PREFIX} --bindir=${STAP_ANDROID_PREFIX}/systemtap --libexecdir=${STAP_ANDROID_PREFIX} --host=${COMPILER_PREFIX} --disable-translator --disable-docs --disable-refdocs --disable-grapher --without-rpm --without-nss --with-android

if [ $? -ne 0 ]; then
	echo "Error configuring the workspace" >&2
	exit 1
fi

make 

if [ $? -ne 0 ]; then
	echo "Error building stap{run,io}" >&2
	exit 1
fi

if [ -e $STAPRUN_BIN ] &&  [ -e $STAPIO_RUN ]; then
	if [ ! -d $OUTPUT_DIR ]; then
		mkdir $OUTPUT_DIR
	fi
	cp $STAPRUN_BIN $OUTPUT_DIR
	cp $STAPIO_BIN $OUTPUT_DIR
else
	rm ${OUTPUT_DIR}/${STAPRUN_BIN}
	rm ${OUTPUT_DIR}/${STAPIO_BIN}
	echo "Some binaries were not created."
	exit 1
fi

cd ..