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91 lines
3.0 KiB
Bash
91 lines
3.0 KiB
Bash
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#!/bin/bash
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# Script to pull debugging sysroot from Android devices
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#
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# Copyright (C) 2020 Gioacchino Mazzurco <gio@eigenlab.org>
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# Copyright (C) 2020 Asociación Civil Altermundi <info@altermundi.net>
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#
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# This program is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the
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# Free Software Foundation, version 3.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE.
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# See the GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <https://www.gnu.org/licenses/>
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<<"ASCIIDOC"
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Pull files from Android device to prepare a debugging sysroot
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Inspired by:
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https://fw4spl-org.github.io/fw4spl-blog/2015/07/27/Native-debugging-on-Android-with-QtCreator.html
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The goal is to have a local copy of the sysroot of the connected device.
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For that we use the command `adb pull <remote_dir_or_file> <local_dir_or_file>`
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We will get a copy of:
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- `/system/lib/`
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- `/vendor/lib/`
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- `libc.so`
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- `libcutils.so`
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As well as the binaries `linker` and `app_process`
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IMPORTANT:
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from one device to another, the remote file `app_process` can be a binary file
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or a symlink to a binary file - which is NOT ok for us.
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That's so we will try to pull every known possible variants of `app_process`,
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e.g. `app_process32` or `app_process_init`
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ASCIIDOC
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## Define default value for variable, take two arguments, $1 variable name,
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## $2 default variable value, if the variable is not already define define it
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## with default value.
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function define_default_value()
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{
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VAR_NAME="${1}"
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DEFAULT_VALUE="${2}"
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[ -z "${!VAR_NAME}" ] && export ${VAR_NAME}="${DEFAULT_VALUE}"
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}
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define_default_value ANDROID_SERIAL "$(adb devices | head -n 2 | tail -n 1 | awk '{print $1}')"
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define_default_value DEBUG_SYSROOT "${HOME}/Builds/debug_sysroot/${ANDROID_SERIAL}/"
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rm -rf "${DEBUG_SYSROOT}"
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for mDir in "/system/lib/" "/vendor/lib/"; do
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mkdir -p "${DEBUG_SYSROOT}/${mDir}"
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# adb pull doesn't behave like rsync dirA/ dirB/ so avoid nesting the
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# directory by deleting last one before copying
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rmdir "${DEBUG_SYSROOT}/${mDir}"
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adb pull "${mDir}" "${DEBUG_SYSROOT}/${mDir}"
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done
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# Retrieve the specific binaries - some of these adb commands will fail, since
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# some files may not exist, but that's ok.
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mkdir -p "${DEBUG_SYSROOT}/system/bin/"
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for mBin in "/system/bin/linker" "/system/bin/app_process" \
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"/system/bin/app_process_init" "/system/bin/app_process32" \
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"/system/bin/app_process64" ; do
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adb pull "${mBin}" "${DEBUG_SYSROOT}/${mBin}"
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done
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# Verify which variants of the specific binaries could be pulled
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echo
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echo "Found the following specific binaries:"
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echo
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ls -1 "${DEBUG_SYSROOT}/system/bin/"*
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ls -1 "${DEBUG_SYSROOT}/system/lib/libc.so"*
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ls -1 "${DEBUG_SYSROOT}/system/lib/libcutils.so"*
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echo
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echo DEBUG_SYSROOT="${DEBUG_SYSROOT}"
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