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