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README.wasm: add android build instructions

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Change-Id: I819dc373b20b2d0255bf396de5e9b467166bb9c2
This commit is contained in:
James Zern 2017-07-19 10:14:54 -07:00
parent 0b8ecc8cfa
commit a1ab868427
1 changed files with 39 additions and 4 deletions
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README.wasm
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@ -32,18 +32,53 @@ Cross compilation:
- arm toolchains can be obtained from: - arm toolchains can be obtained from:
http://www.linaro.org/downloads/ http://www.linaro.org/downloads/
- the android ndk can be obtained from:
https://developer.android.com/ndk/downloads/index.html
armv7: armv7:
------ ------
$ gcc_arm=/opt/gcc-arm; target=arm-linux-gnueabihf
$ cmake .. -DWEBP_BUILD_DWEBP=1 -DCMAKE_C_COMPILER=clang -DWEBP_ENABLE_WASM=1 \ Android:
$ ./android-ndk-r15b/build/tools/make_standalone_toolchain.py \
--arch arm --api 24 --stl gnustl --install-dir /opt/android-arm-24
$ mkdir -p build && cd build
$ cmake ../libwebp \
-DWEBP_BUILD_DWEBP=1 \
-DCMAKE_C_COMPILER=/opt/android-arm-24/bin/clang \
-DCMAKE_PREFIX_PATH=/opt/android-arm-24/sysroot/usr/lib \
-DCMAKE_C_FLAGS=-fPIE \
-DCMAKE_EXE_LINKER_FLAGS=-Wl,-pie \
-DCMAKE_BUILD_TYPE=Release \
-DWEBP_ENABLE_WASM=1
Linux:
$ gcc_arm=/opt/gcc-arm; target=arm-linux-gnueabihf
$ mkdir -p build && cd build
$ cmake ../libwebp -DWEBP_BUILD_DWEBP=1 -DWEBP_ENABLE_WASM=1 \
-DCMAKE_C_COMPILER=clang \
-DCMAKE_C_FLAGS="--target=$target --gcc-toolchain=$gcc_arm --sysroot=$gcc_arm/$target/libc -march=armv7-a -mfpu=neon" \ -DCMAKE_C_FLAGS="--target=$target --gcc-toolchain=$gcc_arm --sysroot=$gcc_arm/$target/libc -march=armv7-a -mfpu=neon" \
-DCMAKE_PREFIX_PATH=$gcc_arm/$target/libc/usr -DCMAKE_PREFIX_PATH=$gcc_arm/$target/libc/usr
aarch64 / arm64: aarch64 / arm64:
---------------- ----------------
$ gcc_arm=/opt/gcc-aarch64; target=aarch64-linux-gnu
$ cmake .. -DWEBP_BUILD_DWEBP=1 -DCMAKE_C_COMPILER=clang -DWEBP_ENABLE_WASM=1 \ Android:
$ ./android-ndk-r15b/build/tools/make_standalone_toolchain.py \
--arch arm64 --api 24 --stl gnustl --install-dir /opt/android-arm64-24
$ mkdir -p build && cd build
$ cmake ../libwebp \
-DWEBP_BUILD_DWEBP=1 \
-DCMAKE_C_COMPILER=/opt/android-arm64-24/bin/clang \
-DCMAKE_PREFIX_PATH=/opt/android-arm64-24/sysroot/usr/lib \
-DCMAKE_C_FLAGS=-fPIE \
-DCMAKE_EXE_LINKER_FLAGS=-Wl,-pie \
-DCMAKE_BUILD_TYPE=Release \
-DWEBP_ENABLE_WASM=1
Linux:
$ gcc_arm=/opt/gcc-aarch64; target=aarch64-linux-gnu
$ mkdir -p build && cd build
$ cmake ../libwebp -DWEBP_BUILD_DWEBP=1 -DWEBP_ENABLE_WASM=1 \
-DCMAKE_C_COMPILER=clang \
-DCMAKE_C_FLAGS="--target=$target --gcc-toolchain=$gcc_arm --sysroot=$gcc_arm/$target/libc" \ -DCMAKE_C_FLAGS="--target=$target --gcc-toolchain=$gcc_arm --sysroot=$gcc_arm/$target/libc" \
-DCMAKE_PREFIX_PATH=$gcc_arm/$target/libc/usr -DCMAKE_PREFIX_PATH=$gcc_arm/$target/libc/usr