how to build release version of coreclr for android?

[gemSender]

I append “cmakeargs -DBUILD_TYPE=Release" at the end of build command and still got debug version with huge size of "libcoreclr.so"

[janvorli]

Which .sh script are you using for the build? You don't need to use -DBUILD_TYPE=Release, there is an option of the build script that sets that. If you build it using the build.sh in the src/coreclr, then you just add Release to the command line. If you build it using the build.sh in the root, the option is -runtimeConfiguration Release, but I think that it has been recently changed to be the default.
There is also a -stripsymbols option to strip the symbols from the binaries.

[jkotas]

cc @am11

[am11]

@gemSender, we are in process of updating the Android builds. The PRs are under review at the moment. If you could try to build runtime repo (excluding mono for now) with the PR branch following these instructions: #32800 (comment), and give us some feedback that would be help us validating the changes. :)

[am11]

For release build, you can add --configuration Release to the build.sh command.
(I have just rebased my branch with dotnet/master, also trying out a fresh build)

[gemSender]

Which .sh script are you using for the build? You don't need to use -DBUILD_TYPE=Release, there is an option of the build script that sets that. If you build it using the build.sh in the src/coreclr, then you just add Release to the command line. If you build it using the build.sh in the root, the option is -runtimeConfiguration Release, but I think that it has been recently changed to be the default.
There is also a -stripsymbols option to strip the symbols from the binaries.

I'v tried this but got new error messages when building v2.2.8 released . Then I tried v3.0.3 and got blocked by "liblttng-ust-devel building test" in "src/pal/src/configure.cmake" even if i installed liblttng-ust-devel for ndk 。 I'm trying to build the branch as @am11 mentioned.

[gemSender]

For release build, you can add --configuration Release to the build.sh command.
(I have just rebased my branch with dotnet/master, also trying out a fresh build)

i tried this but got cmake configure error blew:

CMake Error at /home/razor/coreclr_runtime_src/eng/native/configuretools.cmake:66 (message):
objcopy not found
Call Stack (most recent call first):
CMakeLists.txt:6 (include)

-- Configuring incomplete, errors occurred!
See also "/home/razor/coreclr_runtime_src/artifacts/obj/android.28-arm64.Release/CMakeFiles/CMakeOutput.log".

/home/razor/coreclr_runtime_src/src/installer/corehost/build.proj(43,5): error MSB3073: The command "/home/razor/coreclr_runtime_src/src/installer/corehost/build.sh Release arm64 -apphostver "5.0.0-dev" -hostver "5.0.0-dev" -fxrver "5.0.0-dev" -policyver "5.0.0-dev" -commithash "0065943756c868a7603d9c0d4d0dc46fc1ad72ee" -cross" exited with code 1.

then I enter command "find .tools/android-rootfs/android-ndk-r21 | grep objcopy"

.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/x86_64-linux-android/bin/objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/aarch64-linux-android/bin/objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/i686-linux-android/bin/objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/x86_64-linux-android-objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/arm-linux-androideabi-objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android-objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/i686-linux-android-objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/share/man/man1/aarch64-linux-android-objcopy.1
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/share/man/man1/x86_64-linux-android-objcopy.1
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/share/man/man1/i686-linux-android-objcopy.1
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/share/man/man1/arm-linux-androideabi-objcopy.1
.tools/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/arm-linux-androideabi/bin/objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/x86_64-4.9/prebuilt/linux-x86_64/x86_64-linux-android/bin/objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/x86_64-4.9/prebuilt/linux-x86_64/bin/x86_64-linux-android-objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/x86_64-4.9/prebuilt/linux-x86_64/share/man/man1/x86_64-linux-android-objcopy.1
.tools/android-rootfs/android-ndk-r21/toolchains/x86-4.9/prebuilt/linux-x86_64/i686-linux-android/bin/objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/x86-4.9/prebuilt/linux-x86_64/bin/i686-linux-android-objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/x86-4.9/prebuilt/linux-x86_64/share/man/man1/i686-linux-android-objcopy.1
.tools/android-rootfs/android-ndk-r21/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/share/man/man1/arm-linux-androideabi-objcopy.1
.tools/android-rootfs/android-ndk-r21/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/arm-linux-androideabi/bin/objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/aarch64-linux-android/bin/objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-objcopy
.tools/android-rootfs/android-ndk-r21/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/share/man/man1/aarch64-linux-android-objcopy.1

enter command "whereis objcopy"

objcopy: /usr/bin/objcopy /usr/share/man/man1/objcopy.1.gz

[am11]

I was able to build coreclr with my PR branch (on Ubuntu bionic host) with the following command yesterday:

ROOTFS_DIR=$(realpath .tools/android-rootfs/android-ndk-r21/sysroot) ./build.sh --cross --arch arm64 --subsetCategory coreclr --configuration Release

git hash is tip of my PR branch:

$ git rev-parse HEAD
0065943756c868a7603d9c0d4d0dc46fc1ad72ee

$ git status
On branch feature/android-build
Your branch is up to date with 'origin/feature/android-build'.

if it all looks the same, could you try cleaning the repo with git clean -xdf, followed by eng/common/cross/build-android-rootfs.sh then execute above command. Also please show this part of the logs (where native build commences):

  Commencing CoreCLR Repo build
  __DistroRid: android.28-arm64
  __RuntimeId: android.28-arm64
  Setting up directories for build
  Checking prerequisites...
  /usr/bin/cmake
  Restoring the OptimizationData package
    Restore completed in 1.42 sec for /datadrive/projects/runtime4/src/coreclr/src/.nuget/optdata/optdata.csproj.
  Commencing build of "CoreCLR component" for Linux.arm64.Release in /datadrive/projects/runtime4/artifacts/obj/coreclr/Linux.arm64.Release
    Restore completed in 782.43 ms for /datadrive/projects/runtime4/eng/empty.csproj.
  Invoking "/datadrive/projects/runtime4/eng/native/gen-buildsys.sh" "/datadrive/projects/runtime4/src/coreclr" "/datadrive/projects/runtime4/src/coreclr" "/datadrive/projects/runtime4/artifacts/obj/coreclr/Linux.arm64.Release" arm64 clang "" "" Release ""  -DCLR_ENG_NATIVE_DIR="/datadrive/projects/runtime4/eng/native" -DCLR_CMAKE_PGO_INSTRUMENT=0 -DCLR_CMAKE_OPTDATA_PATH= -DCLR_CMAKE_PGO_OPTIMIZE=1 -DCLR_REPO_ROOT_DIR="/datadrive/projects/runtime4" -DSTRIP_SYMBOLS=true
  loading initial cache file /datadrive/projects/runtime4/src/coreclr/tryrun.cmake
  -- Check for working C compiler: /datadrive/projects/android-arm64-rootfs/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/clang
  -- Check for working C compiler: /datadrive/projects/android-arm64-rootfs/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -- works
  -- Detecting C compiler ABI info
  -- Detecting C compiler ABI info - done
  -- Detecting C compile features
  -- Detecting C compile features - done
  -- Check for working CXX compiler: /datadrive/projects/android-arm64-rootfs/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++

[gemSender]

I was able to build coreclr with my PR branch (on Ubuntu bionic host) with the following command yesterday:

ROOTFS_DIR=$(realpath .tools/android-rootfs/android-ndk-r21/sysroot) ./build.sh --cross --arch arm64 --subsetCategory coreclr --configuration Release

git hash is tip of my PR branch:

$ git rev-parse HEAD
0065943756c868a7603d9c0d4d0dc46fc1ad72ee

$ git status
On branch feature/android-build
Your branch is up to date with 'origin/feature/android-build'.

if it all looks the same, could you try cleaning the repo with git clean -xdf, followed by eng/common/cross/build-android-rootfs.sh then execute above command. Also please show this part of the logs (where native build commences):

  Commencing CoreCLR Repo build
  __DistroRid: android.28-arm64
  __RuntimeId: android.28-arm64
  Setting up directories for build
  Checking prerequisites...
  /usr/bin/cmake
  Restoring the OptimizationData package
    Restore completed in 1.42 sec for /datadrive/projects/runtime4/src/coreclr/src/.nuget/optdata/optdata.csproj.
  Commencing build of "CoreCLR component" for Linux.arm64.Release in /datadrive/projects/runtime4/artifacts/obj/coreclr/Linux.arm64.Release
    Restore completed in 782.43 ms for /datadrive/projects/runtime4/eng/empty.csproj.
  Invoking "/datadrive/projects/runtime4/eng/native/gen-buildsys.sh" "/datadrive/projects/runtime4/src/coreclr" "/datadrive/projects/runtime4/src/coreclr" "/datadrive/projects/runtime4/artifacts/obj/coreclr/Linux.arm64.Release" arm64 clang "" "" Release ""  -DCLR_ENG_NATIVE_DIR="/datadrive/projects/runtime4/eng/native" -DCLR_CMAKE_PGO_INSTRUMENT=0 -DCLR_CMAKE_OPTDATA_PATH= -DCLR_CMAKE_PGO_OPTIMIZE=1 -DCLR_REPO_ROOT_DIR="/datadrive/projects/runtime4" -DSTRIP_SYMBOLS=true
  loading initial cache file /datadrive/projects/runtime4/src/coreclr/tryrun.cmake
  -- Check for working C compiler: /datadrive/projects/android-arm64-rootfs/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/clang
  -- Check for working C compiler: /datadrive/projects/android-arm64-rootfs/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -- works
  -- Detecting C compiler ABI info
  -- Detecting C compiler ABI info - done
  -- Detecting C compile features
  -- Detecting C compile features - done
  -- Check for working CXX compiler: /datadrive/projects/android-arm64-rootfs/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++

I built coreclr native library successfully with the branch you shared , Thank you for your reply !

[gemSender]

I was able to build coreclr with my PR branch (on Ubuntu bionic host) with the following command yesterday:

ROOTFS_DIR=$(realpath .tools/android-rootfs/android-ndk-r21/sysroot) ./build.sh --cross --arch arm64 --subsetCategory coreclr --configuration Release

git hash is tip of my PR branch:

$ git rev-parse HEAD
0065943756c868a7603d9c0d4d0dc46fc1ad72ee

$ git status
On branch feature/android-build
Your branch is up to date with 'origin/feature/android-build'.

if it all looks the same, could you try cleaning the repo with git clean -xdf, followed by eng/common/cross/build-android-rootfs.sh then execute above command. Also please show this part of the logs (where native build commences):

  Commencing CoreCLR Repo build
  __DistroRid: android.28-arm64
  __RuntimeId: android.28-arm64
  Setting up directories for build
  Checking prerequisites...
  /usr/bin/cmake
  Restoring the OptimizationData package
    Restore completed in 1.42 sec for /datadrive/projects/runtime4/src/coreclr/src/.nuget/optdata/optdata.csproj.
  Commencing build of "CoreCLR component" for Linux.arm64.Release in /datadrive/projects/runtime4/artifacts/obj/coreclr/Linux.arm64.Release
    Restore completed in 782.43 ms for /datadrive/projects/runtime4/eng/empty.csproj.
  Invoking "/datadrive/projects/runtime4/eng/native/gen-buildsys.sh" "/datadrive/projects/runtime4/src/coreclr" "/datadrive/projects/runtime4/src/coreclr" "/datadrive/projects/runtime4/artifacts/obj/coreclr/Linux.arm64.Release" arm64 clang "" "" Release ""  -DCLR_ENG_NATIVE_DIR="/datadrive/projects/runtime4/eng/native" -DCLR_CMAKE_PGO_INSTRUMENT=0 -DCLR_CMAKE_OPTDATA_PATH= -DCLR_CMAKE_PGO_OPTIMIZE=1 -DCLR_REPO_ROOT_DIR="/datadrive/projects/runtime4" -DSTRIP_SYMBOLS=true
  loading initial cache file /datadrive/projects/runtime4/src/coreclr/tryrun.cmake
  -- Check for working C compiler: /datadrive/projects/android-arm64-rootfs/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/clang
  -- Check for working C compiler: /datadrive/projects/android-arm64-rootfs/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -- works
  -- Detecting C compiler ABI info
  -- Detecting C compiler ABI info - done
  -- Detecting C compile features
  -- Detecting C compile features - done
  -- Check for working CXX compiler: /datadrive/projects/android-arm64-rootfs/android-rootfs/android-ndk-r21/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++

I tried to host coreclr on my Android app, but when I loaded libcoreclr.so with the dlopen function, an error occurred. I called the dlerror function, and the error it returned was "libgcc_s.so.1 not found"。 Is the error relate with linking glibc library while compiling coreclr ?