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73 lines
1.9 KiB
73 lines
1.9 KiB
#! /bin/bash
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#
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# Copyright 2019 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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usage() {
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cat >&2 <<EOF
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Determine and print the 32- or 64-bit architecture of a device.
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Usage:
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$0 --32 Select the 32-bit architecture
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$0 --64 Select the 64-bit architecture
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EOF
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exit 1
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}
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if [[ $# -ne 1 ]]; then
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usage
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fi
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ARCHITECTURES_32="(arm|x86|none)"
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ARCHITECTURES_64="(arm64|x86_64|none)"
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case "$1" in
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(--32)
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ARCHITECTURES_PATTERN="${ARCHITECTURES_32}"
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;;
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(--64)
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ARCHITECTURES_PATTERN="${ARCHITECTURES_64}"
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;;
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(*) usage;;
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esac
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# Need to be root to query /data/dalvik-cache
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adb root > /dev/null
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adb wait-for-device
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ISA=
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ISA_adb_invocation=
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ISA_outcome=
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# We iterate a few times to workaround an adb issue. b/32655576
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for i in {1..10}; do
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ISA_adb_invocation=$(adb shell ls /data/dalvik-cache)
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ISA_outcome=$?
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ISA=$(echo $ISA_adb_invocation | grep -Ewo "${ARCHITECTURES_PATTERN}")
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if [[ -n "$ISA" ]]; then
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break;
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fi
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done
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if [[ -z "$ISA" ]]; then
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echo >&2 "Unable to determine architecture"
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# Print a few things for helping diagnosing the problem.
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echo >&2 "adb invocation output: $ISA_adb_invocation"
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echo >&2 "adb invocation outcome: $ISA_outcome"
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echo >&2 $(adb shell ls -F /data/dalvik-cache)
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echo >&2 $(adb shell ls /data/dalvik-cache)
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echo >&2 ${ARCHITECTURES_PATTERN}
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echo >&2 $(adb shell ls -F /data/dalvik-cache | grep -Ewo "${ARCHITECTURES_PATTERN}")
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exit 1
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fi
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echo "$ISA"
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