78 lines
1.5 KiB
Plaintext
78 lines
1.5 KiB
Plaintext
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#! /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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check_32bit() {
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if ! adb shell test -e /system/bin/linker; then
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echo >&2 "Device does not have 32-bit support"
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exit 1
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fi
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}
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if [[ $# -ne 1 ]]; then
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usage
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fi
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uname_m="$(adb shell uname -m)"
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case "$1" in
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(--32)
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case $uname_m in
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(armv*)
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echo arm
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;;
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(i?86)
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echo x86
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;;
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(aarch64)
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check_32bit
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echo arm
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;;
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(x86_64)
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check_32bit
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echo x86
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;;
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(*)
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echo >&2 "Unknown ISA: $uname_m"
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exit 1
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esac
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;;
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(--64)
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case $uname_m in
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(aarch64)
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echo arm64
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;;
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(x86_64)
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echo x86_64
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;;
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(*)
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echo >&2 "Unknown ISA: $uname_m"
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exit 1
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esac
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;;
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(*) usage;;
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esac
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