xref: /aosp_15_r20/art/test/693-vdex-inmem-loader-evict/src-secondary/gen.sh (revision 795d594fd825385562da6b089ea9b2033f3abf5a)
1*795d594fSAndroid Build Coastguard Worker#!/bin/bash
2*795d594fSAndroid Build Coastguard Worker#
3*795d594fSAndroid Build Coastguard Worker# Copyright 2019 The Android Open Source Project
4*795d594fSAndroid Build Coastguard Worker#
5*795d594fSAndroid Build Coastguard Worker# Licensed under the Apache License, Version 2.0 (the "License");
6*795d594fSAndroid Build Coastguard Worker# you may not use this file except in compliance with the License.
7*795d594fSAndroid Build Coastguard Worker# You may obtain a copy of the License at
8*795d594fSAndroid Build Coastguard Worker#
9*795d594fSAndroid Build Coastguard Worker#      http://www.apache.org/licenses/LICENSE-2.0
10*795d594fSAndroid Build Coastguard Worker#
11*795d594fSAndroid Build Coastguard Worker# Unless required by applicable law or agreed to in writing, software
12*795d594fSAndroid Build Coastguard Worker# distributed under the License is distributed on an "AS IS" BASIS,
13*795d594fSAndroid Build Coastguard Worker# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14*795d594fSAndroid Build Coastguard Worker# See the License for the specific language governing permissions and
15*795d594fSAndroid Build Coastguard Worker# limitations under the License.
16*795d594fSAndroid Build Coastguard Worker
17*795d594fSAndroid Build Coastguard Worker# This script generates dex files which all contain an empty class called
18*795d594fSAndroid Build Coastguard Worker# MyClassXX, where XX is the ID of the dex file. It prints the first file
19*795d594fSAndroid Build Coastguard Worker# (ID=01) and a list of checksum/signature bytes for all of the dex files
20*795d594fSAndroid Build Coastguard Worker# (ID 01 through NUM_FILES).
21*795d594fSAndroid Build Coastguard Worker# The idea is that the associated test will be able to efficiently generate
22*795d594fSAndroid Build Coastguard Worker# up to NUM_FILES dex files from the first dex file by substituting its
23*795d594fSAndroid Build Coastguard Worker# checksum/signature bytes with that of the dex file of a given ID. Note that
24*795d594fSAndroid Build Coastguard Worker# it is also necessary to replace the ID in the class descriptor, but this
25*795d594fSAndroid Build Coastguard Worker# script does not help with that.
26*795d594fSAndroid Build Coastguard Worker
27*795d594fSAndroid Build Coastguard Workerset -e
28*795d594fSAndroid Build Coastguard WorkerTMP=`mktemp -d`
29*795d594fSAndroid Build Coastguard WorkerNUM_FILES=30
30*795d594fSAndroid Build Coastguard Worker
31*795d594fSAndroid Build Coastguard Workerecho '  private static final byte[][] DEX_CHECKSUMS = new byte[][] {'
32*795d594fSAndroid Build Coastguard Workerfor i in $(seq 1 ${NUM_FILES}); do
33*795d594fSAndroid Build Coastguard Worker  if [ ${i} -lt 10 ]; then
34*795d594fSAndroid Build Coastguard Worker    suffix=0${i}
35*795d594fSAndroid Build Coastguard Worker  else
36*795d594fSAndroid Build Coastguard Worker    suffix=${i}
37*795d594fSAndroid Build Coastguard Worker  fi
38*795d594fSAndroid Build Coastguard Worker  (cd "$TMP" && \
39*795d594fSAndroid Build Coastguard Worker      echo "public class MyClass${suffix} { }" > "$TMP/MyClass${suffix}.java" && \
40*795d594fSAndroid Build Coastguard Worker      javac -d "${TMP}" "$TMP/MyClass${suffix}.java" && \
41*795d594fSAndroid Build Coastguard Worker      d8 --output "$TMP" "$TMP/MyClass${suffix}.class" && \
42*795d594fSAndroid Build Coastguard Worker      mv "$TMP/classes.dex" "$TMP/file${suffix}.dex")
43*795d594fSAndroid Build Coastguard Worker
44*795d594fSAndroid Build Coastguard Worker  # Dump bytes 8-32 (checksum + signature) that need to change for other files.
45*795d594fSAndroid Build Coastguard Worker  checksum=`head -c 32 -z "$TMP/file${suffix}.dex" | tail -c 24 -z | base64`
46*795d594fSAndroid Build Coastguard Worker  echo '    Base64.getDecoder().decode("'${checksum}'"),'
47*795d594fSAndroid Build Coastguard Workerdone
48*795d594fSAndroid Build Coastguard Workerecho '  };'
49*795d594fSAndroid Build Coastguard Worker
50*795d594fSAndroid Build Coastguard Worker# Dump first dex file as base.
51*795d594fSAndroid Build Coastguard Workerecho '  private static final byte[] DEX_BYTES_01 = Base64.getDecoder().decode('
52*795d594fSAndroid Build Coastguard Workerbase64 "${TMP}/file01.dex" | sed -E 's/^/    "/' | sed ':a;N;$!ba;s/\n/" +\n/g' | sed -E '$ s/$/");/'
53*795d594fSAndroid Build Coastguard Worker
54*795d594fSAndroid Build Coastguard Workerrm -rf "$TMP"
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