mirror of
https://github.com/RetroShare/RetroShare.git
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Merge pull request #1834 from G10h4ck/android_debug_documentation
Improve RetroShare Android tools and documentation
This commit is contained in:
G10h4ck
GitHub
commit
be805b0a04
@ -1,8 +1,8 @@
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= RetroShare development on Android
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// SPDX-FileCopyrightText: RetroShare Team <contact@retroshare.cc>
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// SPDX-License-Identifier: CC-BY-SA-4.0
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Compile Retroshare for Android
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==============================
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Compiling an application for Android is not as easy as one would imagine,
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expecially one like RetroShare that has a big codebase and is not well
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@ -179,6 +179,129 @@ Opening RetroShare android app now should show your old profile.
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== Debugging with GDB
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If building RetroShare Android package seems tricky, setting up a functional
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debugging environement for it feels like black magic. This section is meant to
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help you doing it with less headache and hopefully in a reproducible way.
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Unfortunately at the time of the last update to this guide, Qt build system
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strips debugging symbols from the package and from the buildroot also if you
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compile with debugging enabled. Fiddling with `qmake` configurations and
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variables like `CONFIG+=debug`, `CONFIG+=force_debug_info` or `QMAKE_STRIP`
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either as commandline arguments or inside retroshare `.pro` and `.pri` files is
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uneffective. IMHO Qt should handle this on itself so it is probably worth
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reporting a bug to them. So to workaround this problem you need to fiddle a bit
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with the Android NDK. In my case I always keep +Debug+ or +Release+ suffix in
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my build directory name depending on what kind of build it is, so I use this
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information and modify `llvm-strip` in a way that it will strip only if stripped
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file path doesn't contain +Debug+.
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.Modify llvm-strip inside Android NDK
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--------------------------------------------------------------------------------
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## Set ANDROID_NDK_PATH to your Android NDK installation path
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export ANDROID_NDK_PATH="/opt/android-ndk/"
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## Define a convenience variable with llvm-strip path
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export ANDROID_NDK_LLVM_STRIP="${ANDROID_NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip"
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## If not existing yer create a backup of the original llvm-strip
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[ -f "${ANDROID_NDK_LLVM_STRIP}.back" ] ||
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cp "${ANDROID_NDK_LLVM_STRIP}" "${ANDROID_NDK_LLVM_STRIP}.back"
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## Create a new llvm-strip that does nothing if the argument path contains Debug
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cat > "${ANDROID_NDK_LLVM_STRIP}" << LLVMSTRIPTRICK
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#!/bin/bash
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echo "\${2}" | grep -q Debug ||
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"${ANDROID_NDK_LLVM_STRIP}.back" --strip-all "\${2}"
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LLVMSTRIPTRICK
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## Eventually you can revert back simply by running
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# `mv "${ANDROID_NDK_LLVM_STRIP}.back" "${ANDROID_NDK_LLVM_STRIP}"`
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--------------------------------------------------------------------------------
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To attach to the `retroshare-service` running on Android you need also to pull a
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debugging sysroot out of your device first, RetroShare sources provides an
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helper script to do that.
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.Prepare debugging sysroot with helper script
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[source,bash]
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--------------------------------------------------------------------------------
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## Set RetroShare source path
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export RS_SOURCE_DIR="${HOME}/Development/rs-develop"
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## Optionally set your device ID first available will be used, you can run
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## `adb devices` to list available devices.
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#export ANDROID_SERIAL="YT013PSPGK"
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## Optionally set a path where to save the debugging sysroot otherwise default
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## is used.
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#export DEBUG_SYSROOT="${HOME}/Builds/debug_sysroot/${ANDROID_SERIAL}/"
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## Run the helper script
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${RS_SOURCE_DIR}/build_scripts/Android/pull_sysroot.sh
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--------------------------------------------------------------------------------
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.Prepare Android NDK GDB configurations
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[source,bash]
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--------------------------------------------------------------------------------
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## Optionally set Qt version variable consistently with your installation
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export QT_VERSION="5.12.4"
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## Optionally set Qt architecture variable consistently with Android device
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export QT_ARCH="arm64_v8a"
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## Optionally set Qt path variable consistently with your installation
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export QT_DIR="/opt/Qt-${QT_VERSION}/${QT_VERSION}/"
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## Optionally set RetroShare buildroot path
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export RS_BUILD_DIR="${HOME}/Builds/RetroShare-Android_for_${QT_ARCH}_Clang_Qt_${QT_VERSION//./_}_android_${QT_ARCH}-Debug/"
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## Optionally set gdb config file path
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export GDB_CONFIGS_FILE="${HOME}/Builds/gdb_configs_${QT_ARCH}"
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## Generate Android NDK GDB configuration
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${RS_SOURCE_DIR}/build_scripts/Android/generate_gdb_init_commands.sh
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--------------------------------------------------------------------------------
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You will need to run the following steps everytime you want to debug
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`retroshare-service` on Android.
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Make sure `retroshare-service` is running on your connected Android device.
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.Run GDB server on your Android device from your host console
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[source,bash]
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--------------------------------------------------------------------------------
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${RS_SOURCE_DIR}/build_scripts/Android/start_gdbserver.sh
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--------------------------------------------------------------------------------
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.Run Android NDK GDB on your workstation and attach
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[source,bash]
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--------------------------------------------------------------------------------
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## Start NDK gdb
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${ANDROID_NDK_PATH}/prebuilt/linux-x86_64/bin/gdb
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## Instruct GDB how and where to find debugging symbols
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(gdb) source $GDB_CONFIGS_FILE
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## Connect to the gdbserver running on the phone
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(gdb) target remote 127.0.01:5039
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## Have fun debugging
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(gdb)
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--------------------------------------------------------------------------------
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== Debugging with Qt Creator
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WARNING: As of the last update to this guide, debugging retroshare-service
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running on Android via Qt creator doesn't wrok even with all the trickery
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explained in this section, you better learn how to debug with GDB reading
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carefully previous section.
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Qt Creator actually support debugging only for the foreground activity, so to
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debug what's happening in the core extra trickery is needed.
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@ -239,6 +362,17 @@ TIP: Some time WiFi power saving on Android mess with the GDB connection,
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to prevent that from appening open another +adb shell+ and live +ping+ toward
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your work-station running
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== Embedding into other Android packages
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As showed by https://elrepo.io/[elRepo.io] developers it is possible and quite
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easy to embed `retroshare-service` into other Android packages see description
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https://gitlab.com/elRepo.io/elRepo.io-android/-/blob/master/README.adoc
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And implementation details
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https://gitlab.com/elRepo.io/elRepo.io-android/-/blob/master/android/app/build.gradle
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== Furter Readings
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@ -254,3 +388,12 @@ your work-station running
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- link:https://fw4spl-org.github.io/fw4spl-blog/2015/07/27/Native-debugging-on-Android-with-QtCreator.html[]
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- link:https://fragglet.livejournal.com/19646.html[]
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- link:https://github.com/android-ndk/ndk/issues/773[How to build without using standalone toolchain?]
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== License
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Copyright (C) 2016-2020 Gioacchino Mazzurco <gio@eigenlab.org> +
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Copyright (C) 2020 Asociación Civil Altermundi <info@altermundi.net> +
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This work is licensed under a Creative Commons Attribution-Share Alike 4.0 International License.
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image::https://i.creativecommons.org/l/by-sa/4.0/88x31.png[Creative Commons License, link=http://creativecommons.org/licenses/by-sa/4.0/]
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85
build_scripts/Android/generate_gdb_init_commands.sh
Executable file
85
build_scripts/Android/generate_gdb_init_commands.sh
Executable file
@ -0,0 +1,85 @@
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#!/bin/bash
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# Script to prepare Android NDK GDB configurations to debug retroshare-service
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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
|
||||
# the terms of the GNU Affero General Public License as published by the
|
||||
# Free Software Foundation, version 3.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful, but
|
||||
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
# FITNESS FOR A PARTICULAR PURPOSE.
|
||||
# See the GNU Affero General Public License for more details.
|
||||
#
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||||
# You should have received a copy of the GNU Affero General Public License along
|
||||
# with this program. If not, see <https://www.gnu.org/licenses/>
|
||||
|
||||
|
||||
## 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 QT_VERSION "5.12.4"
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define_default_value QT_ARCH "arm64_v8a"
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define_default_value QT_DIR "/opt/Qt-${QT_VERSION}/${QT_VERSION}/"
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define_default_value ANDROID_SERIAL "$(adb devices | head -n 2 | tail -n 1 | awk '{print $1}')"
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define_default_value RS_BUILD_DIR "${HOME}/Builds/RetroShare-Android_for_${QT_ARCH}_Clang_Qt_${QT_VERSION//./_}_android_${QT_ARCH}-Debug/"
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define_default_value RS_SOURCE_DIR "${HOME}/Development/rs-develop/"
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define_default_value DEBUG_SYSROOT "${HOME}/Builds/debug_sysroot/${ANDROID_SERIAL}/"
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define_default_value GDB_CONFIGS_FILE "${HOME}/Builds/gdb_configs_${QT_ARCH}"
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scanDir()
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{
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find "$1" -type d -not -path '*/\.git/*' | tr '\n' ':' >> $GDB_CONFIGS_FILE
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}
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putSeparator()
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{
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echo >> $GDB_CONFIGS_FILE
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echo >> $GDB_CONFIGS_FILE
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}
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echo "set sysroot ${DEBUG_SYSROOT}" > $GDB_CONFIGS_FILE
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putSeparator
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echo "set auto-solib-add on" >> $GDB_CONFIGS_FILE
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echo -n "set solib-search-path " >> $GDB_CONFIGS_FILE
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scanDir "${RS_BUILD_DIR}"
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scanDir "${DEBUG_SYSROOT}"
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scanDir "${QT_DIR}/android_${QT_ARCH}/lib/"
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scanDir "${QT_DIR}/android_${QT_ARCH}/plugins/"
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scanDir "${QT_DIR}/android_${QT_ARCH}/qml/"
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putSeparator
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echo -n "directory " >> $GDB_CONFIGS_FILE
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scanDir ${RS_SOURCE_DIR}/jsonapi-generator/src
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scanDir ${RS_SOURCE_DIR}/libbitdht/src
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scanDir ${RS_SOURCE_DIR}/openpgpsdk/src
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scanDir ${RS_SOURCE_DIR}/libretroshare/src
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scanDir ${RS_SOURCE_DIR}/retroshare-service/src
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scanDir ${RS_SOURCE_DIR}/supportlibs/rapidjson/include/
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scanDir ${RS_SOURCE_DIR}/supportlibs/restbed/source/
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scanDir ${RS_SOURCE_DIR}/supportlibs/udp-discovery-cpp/
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||||
scanDir ${RS_SOURCE_DIR}/supportlibs/restbed/dependency/asio/asio/include/
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scanDir ${RS_SOURCE_DIR}/supportlibs/restbed/dependency/catch/include/
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putSeparator
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|
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## see https://stackoverflow.com/questions/28972367/gdb-backtrace-without-stopping
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echo "catch signal SIGSEGV" >> $GDB_CONFIGS_FILE
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echo "commands
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bt
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continue
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end" >> $GDB_CONFIGS_FILE
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putSeparator
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echo GDB_CONFIGS_FILE=$GDB_CONFIGS_FILE
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@ -2,7 +2,7 @@
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# Script to prepare RetroShare Android package building toolchain
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#
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# Copyright (C) 2016-2019 Gioacchino Mazzurco <gio@eigenlab.org>
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# Copyright (C) 2016-2020 Gioacchino Mazzurco <gio@eigenlab.org>
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify it under
|
||||
# the terms of the GNU Affero General Public License as published by the
|
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|
||||
90
build_scripts/Android/pull_sysroot.sh
Executable file
90
build_scripts/Android/pull_sysroot.sh
Executable file
@ -0,0 +1,90 @@
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#!/bin/bash
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|
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# Script to pull debugging sysroot from Android devices
|
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#
|
||||
# Copyright (C) 2020 Gioacchino Mazzurco <gio@eigenlab.org>
|
||||
# Copyright (C) 2020 Asociación Civil Altermundi <info@altermundi.net>
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify it under
|
||||
# the terms of the GNU Affero General Public License as published by the
|
||||
# Free Software Foundation, version 3.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful, but
|
||||
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
# FITNESS FOR A PARTICULAR PURPOSE.
|
||||
# See the GNU Affero General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU Affero General Public License along
|
||||
# with this program. If not, see <https://www.gnu.org/licenses/>
|
||||
|
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<<"ASCIIDOC"
|
||||
|
||||
Pull files from Android device to prepare a debugging sysroot
|
||||
Inspired by:
|
||||
https://fw4spl-org.github.io/fw4spl-blog/2015/07/27/Native-debugging-on-Android-with-QtCreator.html
|
||||
|
||||
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>`
|
||||
|
||||
We will get a copy of:
|
||||
|
||||
- `/system/lib/`
|
||||
- `/vendor/lib/`
|
||||
- `libc.so`
|
||||
- `libcutils.so`
|
||||
|
||||
As well as the binaries `linker` and `app_process`
|
||||
|
||||
IMPORTANT:
|
||||
from one device to another, the remote file `app_process` can be a binary file
|
||||
or a symlink to a binary file - which is NOT ok for us.
|
||||
That's so we will try to pull every known possible variants of `app_process`,
|
||||
e.g. `app_process32` or `app_process_init`
|
||||
|
||||
ASCIIDOC
|
||||
|
||||
|
||||
## Define default value for variable, take two arguments, $1 variable name,
|
||||
## $2 default variable value, if the variable is not already define define it
|
||||
## with default value.
|
||||
function define_default_value()
|
||||
{
|
||||
VAR_NAME="${1}"
|
||||
DEFAULT_VALUE="${2}"
|
||||
|
||||
[ -z "${!VAR_NAME}" ] && export ${VAR_NAME}="${DEFAULT_VALUE}"
|
||||
}
|
||||
|
||||
define_default_value ANDROID_SERIAL "$(adb devices | head -n 2 | tail -n 1 | awk '{print $1}')"
|
||||
define_default_value DEBUG_SYSROOT "${HOME}/Builds/debug_sysroot/${ANDROID_SERIAL}/"
|
||||
|
||||
rm -rf "${DEBUG_SYSROOT}"
|
||||
|
||||
for mDir in "/system/lib/" "/vendor/lib/"; do
|
||||
mkdir -p "${DEBUG_SYSROOT}/${mDir}"
|
||||
# adb pull doesn't behave like rsync dirA/ dirB/ so avoid nesting the
|
||||
# directory by deleting last one before copying
|
||||
rmdir "${DEBUG_SYSROOT}/${mDir}"
|
||||
adb pull "${mDir}" "${DEBUG_SYSROOT}/${mDir}"
|
||||
done
|
||||
|
||||
# Retrieve the specific binaries - some of these adb commands will fail, since
|
||||
# some files may not exist, but that's ok.
|
||||
|
||||
mkdir -p "${DEBUG_SYSROOT}/system/bin/"
|
||||
for mBin in "/system/bin/linker" "/system/bin/app_process" \
|
||||
"/system/bin/app_process_init" "/system/bin/app_process32" \
|
||||
"/system/bin/app_process64" ; do
|
||||
adb pull "${mBin}" "${DEBUG_SYSROOT}/${mBin}"
|
||||
done
|
||||
|
||||
# Verify which variants of the specific binaries could be pulled
|
||||
echo
|
||||
echo "Found the following specific binaries:"
|
||||
echo
|
||||
ls -1 "${DEBUG_SYSROOT}/system/bin/"*
|
||||
ls -1 "${DEBUG_SYSROOT}/system/lib/libc.so"*
|
||||
ls -1 "${DEBUG_SYSROOT}/system/lib/libcutils.so"*
|
||||
echo
|
||||
|
||||
echo DEBUG_SYSROOT="${DEBUG_SYSROOT}"
|
||||
101
build_scripts/Android/start_gdbserver.sh
Executable file
101
build_scripts/Android/start_gdbserver.sh
Executable file
@ -0,0 +1,101 @@
|
||||
#!/bin/bash
|
||||
|
||||
# Script to start gdbserver on Android device and attach to retroshare-service
|
||||
#
|
||||
# Copyright (C) 2020 Gioacchino Mazzurco <gio@eigenlab.org>
|
||||
# Copyright (C) 2020 Asociación Civil Altermundi <info@altermundi.net>
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify it under
|
||||
# the terms of the GNU Affero General Public License as published by the
|
||||
# Free Software Foundation, version 3.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful, but
|
||||
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
# FITNESS FOR A PARTICULAR PURPOSE.
|
||||
# See the GNU Affero General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU Affero General Public License along
|
||||
# with this program. If not, see <https://www.gnu.org/licenses/>
|
||||
|
||||
<<"ASCIIDOC"
|
||||
|
||||
Start gdbserver on Android device and attach it to the retroshare service
|
||||
process
|
||||
|
||||
Inspired by:
|
||||
https://fw4spl-org.github.io/fw4spl-blog/2015/07/27/Native-debugging-on-Android-with-QtCreator.html
|
||||
|
||||
ASCIIDOC
|
||||
|
||||
|
||||
## Define default value for variable, take two arguments, $1 variable name,
|
||||
## $2 default variable value, if the variable is not already define define it
|
||||
## with default value.
|
||||
function define_default_value()
|
||||
{
|
||||
VAR_NAME="${1}"
|
||||
DEFAULT_VALUE="${2}"
|
||||
|
||||
[ -z "${!VAR_NAME}" ] && export ${VAR_NAME}="${DEFAULT_VALUE}"
|
||||
}
|
||||
|
||||
define_default_value ANDROID_APK_PACKAGE "org.retroshare.service"
|
||||
define_default_value ANDROID_PROCESS_NAME "org.retroshare.service:rs"
|
||||
define_default_value ANDROID_SERIAL "$(adb devices | head -n 2 | tail -n 1 | awk '{print $1}')"
|
||||
define_default_value GDB_SERVER_PORT 5039
|
||||
|
||||
adb_shell()
|
||||
{
|
||||
adb shell run-as ${ANDROID_APK_PACKAGE} $@
|
||||
}
|
||||
|
||||
## If not passed as environement variable try to determine gdbserver path
|
||||
## shipped withing Android package
|
||||
[ -z "${LIB_GDB_SERVER_PATH}" ] &&
|
||||
{
|
||||
for mUsualPath in \
|
||||
"/data/data/${ANDROID_APK_PACKAGE}/lib/libgdbserver.so" \
|
||||
"/data/app/${ANDROID_APK_PACKAGE}"*"/lib/arm64/libgdbserver.so"
|
||||
do
|
||||
adb_shell ls "${mUsualPath}" &&
|
||||
export LIB_GDB_SERVER_PATH="${mUsualPath}" && break
|
||||
done
|
||||
}
|
||||
|
||||
|
||||
[ -z "${LIB_GDB_SERVER_PATH}" ] &&
|
||||
{
|
||||
cat <<EOF
|
||||
libgdbserver.so not found in any of the usual path attempting to look for it
|
||||
with find, it will take a bunch of time. Take note of the discovered path and
|
||||
define LIB_GDB_SERVER_PATH on your commandline at next run to avoid waiting
|
||||
again.
|
||||
|
||||
|
||||
EOF
|
||||
tFile="$(mktemp)"
|
||||
adb_shell find -type f -name 'libgdbserver.so' / | \
|
||||
grep ${ANDROID_APK_PACKAGE} | tee "${tFile}"
|
||||
|
||||
LIB_GDB_SERVER_PATH="$(head -n 1 "${tFile}")"
|
||||
rm "${tFile}"
|
||||
}
|
||||
|
||||
[ -z "${LIB_GDB_SERVER_PATH}" ] &&
|
||||
{
|
||||
echo "Cannot find libgdbserver.so, are you sure your package ships it?"
|
||||
exit -1
|
||||
}
|
||||
|
||||
mPid="$(adb_shell ps | grep ${ANDROID_PROCESS_NAME} | awk '{print $2}')"
|
||||
[ -z "${mPid}" ] &&
|
||||
{
|
||||
echo "Failed ${ANDROID_PROCESS_NAME} PID retrival are you sure it is running?"
|
||||
exit -2
|
||||
}
|
||||
|
||||
|
||||
## Establish port forwarding so we can connect to gdbserver with gdb
|
||||
adb forward tcp:${GDB_SERVER_PORT} tcp:${GDB_SERVER_PORT}
|
||||
|
||||
((adb_shell ${LIB_GDB_SERVER_PATH} 127.0.0.1:${GDB_SERVER_PORT} --attach ${mPid})&)
|
||||
Loading…
Reference in New Issue
Block a user