You won't believe how this makes the compilation 4x faster!

Sorry for the click-bait title, but it fitted too well ;-)

Anyway, I added the possibility to ndk-make.sh to compile only for one
arch.

In my tests, if I also set the optimisation level to 0 (default is 3),
the compilation time went down from 3:30 to 1:20. Not sure if this is
worth it because I remember a comment stating that this makes generating
keys take forever. Maybe I should do some measurements and experiment
with levels 1 and 2 but that's for another PR.

What do you think?
This commit is contained in:
Hocuri 2020-06-16 20:40:19 +02:00
parent 0a3c19f8cb
commit b6c49f67f5
No known key found for this signature in database
GPG key ID: 0D45AD9007D18DCD
2 changed files with 86 additions and 33 deletions

View file

@ -1,4 +1,3 @@
APP_PLATFORM := android-16
APP_ABI := armeabi-v7a arm64-v8a x86 x86_64
APP_STL := c++_static

View file

@ -1,12 +1,9 @@
#!/bin/sh
set -e
echo "starting time: `date`"
cd jni/deltachat-core-rust
# to setup the toolchains (from https://medium.com/visly/rust-on-android-19f34a2fb43 )
# run the following in `jni/deltachat-core-rust`:
# $ rustup target add armv7-linux-androideabi aarch64-linux-android i686-linux-android x86_64-linux-android --toolchain `cat rust-toolchain`
#
# rustup target add armv7-linux-androideabi aarch64-linux-android i686-linux-android x86_64-linux-android --toolchain `cat rust-toolchain`
#
# Currently ndk20b is minimum required version
# (newer versions will likely work, however, are not tested and not used in offial releases,
@ -24,33 +21,40 @@ cd jni/deltachat-core-rust
# [target.x86_64-linux-android]
# linker = "PATH_TO_NDK/toolchains/llvm/prebuilt/HOST/bin/x86_64-linux-android21-clang"
# ```
# then, the following should work:
#
#
# If you want to, you can run the script with your architecture as an argument
# to speed up compilation by factor 4:
#
# ./ndk-make.sh arm64-v8a
#
# Possible values are armeabi-v7a, arm64-v8a, x86 and x86_64.
# You should be able to find out your architecture by running:
#
# adb shell uname -m
#
# or:
#
# adb shell cat /proc/cpuinfo
#
# The values in the following lines mean the same:
#
# armeabi-v7a, armv7 and arm
# arm64-v8a, aarch64 and arm64
# x86 and i686
# (there are no synonyms for x86_64)
# fix build on MacOS Catalina
unset CPATH
echo "-- cross compiling to armv7-linux-androideabi (arm) --"
export CFLAGS=-D__ANDROID_API__=16
TARGET_CC=armv7a-linux-androideabi16-clang \
cargo +`cat rust-toolchain` build --release --target armv7-linux-androideabi -p deltachat_ffi
set -e
echo "starting time: `date`"
echo "-- cross compiling to aarch64-linux-android (arm64) --"
export CFLAGS=-D__ANDROID_API__=21
TARGET_CC=aarch64-linux-android21-clang \
cargo +`cat rust-toolchain` build --release --target aarch64-linux-android -p deltachat_ffi
# Check if the argument is a correct architecture:
if test $1 && echo "armeabi-v7a arm64-v8a x86 x86_64" | grep -vwq $1; then
echo "Architecture '$1' not known, possible values are armeabi-v7a, arm64-v8a, x86 and x86_64."
exit
fi
echo "-- cross compiling to i686-linux-android (x86) --"
export CFLAGS=-D__ANDROID_API__=16
TARGET_CC=i686-linux-android16-clang \
cargo +`cat rust-toolchain` build --release --target i686-linux-android -p deltachat_ffi
echo "-- cross compiling to x86_64-linux-android (x86_64) --"
export CFLAGS=-D__ANDROID_API__=21
TARGET_CC=x86_64-linux-android21-clang \
cargo +`cat rust-toolchain` build --release --target x86_64-linux-android -p deltachat_ffi
echo -- copy generated .a files --
cd ..
cd jni
rm -f armeabi-v7a/*
rm -f arm64-v8a/*
rm -f x86/*
@ -59,12 +63,62 @@ mkdir -p armeabi-v7a
mkdir -p arm64-v8a
mkdir -p x86
mkdir -p x86_64
cp deltachat-core-rust/target/armv7-linux-androideabi/release/libdeltachat.a armeabi-v7a
cp deltachat-core-rust/target/aarch64-linux-android/release/libdeltachat.a arm64-v8a
cp deltachat-core-rust/target/i686-linux-android/release/libdeltachat.a x86
cp deltachat-core-rust/target/x86_64-linux-android/release/libdeltachat.a x86_64
cd deltachat-core-rust
# fix build on MacOS Catalina
unset CPATH
if test -z $1 || test $1 = armeabi-v7a; then
echo "-- cross compiling to armv7-linux-androideabi (arm) --"
export CFLAGS=-D__ANDROID_API__=16
TARGET_CC=armv7a-linux-androideabi16-clang \
cargo +`cat rust-toolchain` build --release --target armv7-linux-androideabi -p deltachat_ffi
cp target/armv7-linux-androideabi/release/libdeltachat.a ../armeabi-v7a
fi
if test -z $1 || test $1 = arm64-v8a; then
echo "-- cross compiling to aarch64-linux-android (arm64) --"
export CFLAGS=-D__ANDROID_API__=21
TARGET_CC=aarch64-linux-android21-clang \
cargo +`cat rust-toolchain` build --release --target aarch64-linux-android -p deltachat_ffi
cp target/aarch64-linux-android/release/libdeltachat.a ../arm64-v8a
fi
if test -z $1 || test $1 = x86; then
echo "-- cross compiling to i686-linux-android (x86) --"
export CFLAGS=-D__ANDROID_API__=16
TARGET_CC=i686-linux-android16-clang \
cargo +`cat rust-toolchain` build --release --target i686-linux-android -p deltachat_ffi
cp target/i686-linux-android/release/libdeltachat.a ../x86
fi
if test -z $1 || test $1 = x86_64; then
echo "-- cross compiling to x86_64-linux-android (x86_64) --"
export CFLAGS=-D__ANDROID_API__=21
TARGET_CC=x86_64-linux-android21-clang \
cargo +`cat rust-toolchain` build --release --target x86_64-linux-android -p deltachat_ffi
cp target/x86_64-linux-android/release/libdeltachat.a ../x86_64
fi
echo -- ndk-build --
cd ..
# Set the right arch in Application.mk:
oldDotMk="$(cat Application.mk)"
if test $1; then
sed -i "s/APP_ABI.*/APP_ABI := $1/g" Application.mk
else
# We are compiling for all architectures:
sed -i "s/APP_ABI.*/APP_ABI := armeabi-v7a arm64-v8a x86 x86_64/g" Application.mk
fi
cd ..
ndk-build
cd jni
# Restore old Application.mk:
echo "$oldDotMk" > Application.mk
echo "ending time: `date`"