1#!/bin/bash -u 2# 3# Copyright 2016 Google Inc. All Rights Reserved. 4# 5# This script is intended to be used by binary_search_state.py, as 6# part of the binary search triage on the Android source tree. This script 7# symlinks a list of object files from the 'good' build tree into the working 8# build tree, for testing. 9# 10# It is highly recommended to not use --noincremental with these scripts. If the 11# switch scripts are given non incremental sets of GOOD/BAD objects, make will 12# not be able to do an incremental build and will take much longer to build. 13# 14 15source android/common.sh 16 17OBJ_LIST_FILE=$1 18 19# Symlink from GOOD obj to working tree. 20SWITCH_CMD="ln -sf ${BISECT_GOOD_BUILD}/{} {}; touch {};" 21 22overall_status=0 23 24# Check that number of arguments == 1 25if [ $# -eq 1 ] ; then 26 # Run symlink once per input line, ignore empty lines. 27 # Have ${BISECT_NUM_JOBS} processes running concurrently. 28 # Pass to "sh" to allow multiple commands to be executed. 29 xargs -P ${BISECT_NUM_JOBS} -a ${OBJ_LIST_FILE} -r -l -I '{}' \ 30 sh -c "${SWITCH_CMD}" 31else 32 echo "ERROR:" 33 echo "Please run the binary search tool with --file_args" 34 echo "Android has too many files to be passed as command line arguments" 35 echo "The binary search tool will now exit..." 36 exit 1 37fi 38overall_status=$? 39 40 41exit ${overall_status} 42