Android API 23 (#16)

* Add Android workflow

* Build Android image (#1)

* Build Android image

* Checkout without ssh

* Retry build if it fails

* Swift 6.1 Release Dockerfiles (swiftlang#456)

* Change binutils-gold package dependency on Debian 12 to binutils (swiftlang#457)

* Update installed packages after nightly platform expansion (swiftlang#458)

* update nightly-6.1 dependencies

* update nightly-main dependencies

* fix ubuntu images

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Fedora 41 Dockerfile (swiftlang#464)

* Build Android image

* Build Android image

* Swift 6.1 Release Dockerfiles (swiftlang#456)

* Change binutils-gold package dependency on Debian 12 to binutils (swiftlang#457)

* Build Android image

* Build Android image

* Build Android image

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Android SDK build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Androd build

* Swift Android build

* Swift Android build

* Swift Android build

* Swift Android build

---------

Co-authored-by: Mishal Shah <[email protected]>
Co-authored-by: Chris McGee <[email protected]>
Co-authored-by: Justice Adams <[email protected]>
Co-authored-by: Andrew Sukach <[email protected]>

* Swift Android build 6.2 (#2)

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Start splitting NDK out from the rest of the SDK

* Start splitting NDK out from the rest of the SDK

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2

* Swift Android build 6.2 (#3)

* Swift Android build 6.2

* Swift Android build 6.2

* Add post-install script to SDK bundle

* Add post-install script to SDK bundle

* Add post-install script to SDK bundle

* Add post-install script to SDK bundle

* Build SDK in Docker container (#4)

* Add static libraries to post-install script

* Add post-install script to SDK bundle

* Add post-install script to SDK bundle

* Update submodules

* Checkout patches repo instead of using a git submodule

* Update libcurl to 8.13.0

* Remove resources that we no longer use

* Update libcurl to 8.13.0

* Update libxml2 to 2.14.2

* Build libxml2, libcurl, and boringssl with support for Android 16kb page sizes

* Add build-script --extra-cmake-options=-DCMAKE_EXTRA_LINK_FLAGS=-Wl,-z,max-page-size=16384

* Add 16KB page size linker flags to linker flags in swift-toolset.json

* Add 16KB page size linker flags to linker flags in swift-toolset.json

* Build with ndk-r28b

* Revert to building with ndk-r27c

* Use official endpoints for discovering latest Swift release/devel/trunk tags

* Typo fix in version script

* Cleanup for PR

* Change BUILD_VERSION to BUILD_SCHEME and have it match release, swift-*-branch, or development

* Update Android README

* Update how patches are applied

* Fix source directory for patch target

* Harmonize timestamps in artifactbundle with the swift source tag date for build reproducibility

* Simplify toolchain-vars.sh

* Run the compiler validation suite for Android (#8)

* Run the compiler validation suite for Android

* Add --build-compiler option

* Add --cross-compile-build-swift-tools=0 from swiftlang/swift#38441

* Build with --build-llvm=0

* Check out Yams for Swift 6.1.1 build

* Add --llvm-ninja-targets-for-cross-compile-hosts=help

* Install pre-requisites

* Install build prerequisites

* Only setup local toolchain if build-compiler is not 0

* Fix Yams version checkout

* Quote arguments to build scripts

* Permit empty host-toolchain argument in build.sh

* Fix check for BUILD_COMPILER

* Re-order Docker PATH to system clang is used before Swift toolchain clang

* Use --host-test to skip attempt to test on connected device/emulator

* Install clang in Dockerfile

* Add --skip-test-linux flag to build

* Remove more folders to free up space

* Update patches

* Add docker-specific CI variants that run the compiler validation tests

* meaningless edit

* Update pull_request.yml to stop the 6.1 release builds

* Update pull_request.yml to really only build the full docker compiler with tests

* Update README.md with meaningless edit to bump build

* Update build.sh to skip testing XCTest for linux, as a handful of the linux tests fail for some reason

* Update build.sh to disable building libTesting and for 16K memory pages, as both don't work yet

* Update build.sh to skip testing Foundation for linux, which requires building SwiftPM from source first

* Update build.sh to not build each arch in a separate build directory

* Update Dockerfile to use clang 19 instead

* Add self-hosted runner CI variant

* Fix CI workflow syntax

* Update CI runner config

* Update CI runner config

* Fix name of self-hosted CI runner

* Re-order arch run sequence

* Update CI for self-hosted runner

* Build for self-hosted runner

* Add swift-6.2-branch to self-hosted run matrix

* Update build.sh to disable aarch64 temporarily, as we know it built fine

* Update pull_request.yml to disable non-compiler builds, as they all work, and comment out self-hosted till we know armv7 works

* Run compiler validation on self-hosted with increased timeout

* Update build-docker to only build for armv7

* Update pull_request.yml to disable self-hosted builds temporarily

* Update pull_request.yml to build the full compiler in github runners with the armv7 stdlib and tests

* Update build-docker to build for aarch64 first

* Update toolchain-vars.sh to use older trunk snapahot toolchain that didn't crash

* Update toolchain-vars.sh to only download the latest release compiler if building the Swift compiler from source

* Update build-docker to only build for armv7 again

* Update toolchain-vars.sh to fix setting branch variable

* Update build-docker to build for all three supported arches

* Update pull_request.yml to try self-hosted runs again

* Update build.sh to only install SDK components and remove linux stdlib

* Tolerate missing linux folder when attempting to clean up unnecessary build artifacts

* Fix extraCLIOptions in swift-toolset.json

* gcpdw

* Fix patch application

* Update apply-patches.sh to remove unused changes

* Update swift-android-testing-except-release.patch to add Testing fix

* Update swift-android.patch to remove unneeded patches

* Update build.sh to try and fix Testing and clean up the bundle more

* Fix README.md

---------

Co-authored-by: finagolfin <[email protected]>

* Build compiler-validated bundles from latest branch commits, not older tags

Also update patches, particularly to disable failing tests from the compiler validation suite

* gcpd 'Update patches'

* Update patches and build matrix

* Disable compiler validated builds on self-hosted

* Centralize cmake variable for 6.2 in patches, as done for trunk upstream

* Update disabled tests

* Try running Docker build on macOS host

* Remove separate checks of libxml2, curl, and yams

* Remove upstreamed 6.2 branch patches

* Use command-line flags to work around CMake 3.30+ linker flag bug, rather than patching files

* Create an Android CMake toolchain file instead to cross-compile Testing and add
16 KB page linker flag to 6.2 branch

* Install the native host LLVM tools for full compiler builds

* Extend `--cross-compile-build-swift-tools=False` to disable building and installing LLVM
and the Testing macros for cross-compiled hosts, then enable building and using the
Testing macros for the native host.

* Don't copy any libraries from the NDK: link the NDK's clang resource directory in the post-install script instead

* Wildcard the clang version link in the post-install script in order to accomodate NDK 27 and 28

* Switch generated shell header to use #!/usr/bin/env bash

* SBOM and nits (#14)

* Address nits

* Eliminate unnecessaryt pushds and use run cmake install instead of ninja

* Generate SBOM with SDK dependencies

* Add example of command for building locally

* Remove upstreamed patches and turn the last modifications into perl substitutions instead.

* Remove self-hosted build on github CI

* Remove android_build job from pull_request workflow

* Add license headers to Android build scripts

* Remove unnecessary .gitignore

* Add license header to Dockerfile

* Switch over to using explicit tags and branches when invoking build-docker/local

Also, force the full Swift compiler to be built from source when building from a
branch, since there are no existing toolchain builds of arbitrary commits that
we can download.

* Fix build script arguments to use false instead of False due to true_false not handling the capitalized form

* Build swift-6.2-RELEASE

* Apply patch from swiftlang/swift#84061 for 6.2.0 Android SDK release

* Update patch application for 6.2

* Change 6.2 to perform local build

* Change 6.2 to perform local build on ubuntu-24.04

* Switch back to building 6.2 from a tag

* Switch back to building 6.2 from a tag

* Switch back to building 6.2 from a tag

* Build the Swift 6.2 release self-hosted with compiler validation

* Set minimum Android API to 24

* Build against swift-DEVELOPMENT-SNAPSHOT-2025-10-16-

* Disable building libxml2 tests to handle missing glob function in Android 24

* Disable building libxml2 tests to handle missing glob function in Android 24

* Build this PR without compiler validation

* Build this PR without compiler validation

* Disable posix_spawnattr_ for Android 24

* Reduce Android API from 24 to 23

* Restore Android minimum API to 24

* Add swift-nio to tests cases being run

* Reduce Android API from 24 to 23

* Try building swift-collections

* Try testing against emulator API level 23

* Fix backtrace call

* Fail with an error for posix_spawn

* Fix error for posix_spawn

* Remove temporary swift-docker Android build workflow

---------

Co-authored-by: Mishal Shah <[email protected]>
Co-authored-by: Chris McGee <[email protected]>
Co-authored-by: Justice Adams <[email protected]>
Co-authored-by: Andrew Sukach <[email protected]>
Co-authored-by: finagolfin <[email protected]>

Author: 6 people

swift-ci/sdks/android/README.md

@@ -41,7 +41,7 @@ which will build the sources for each of the specified
 architectures and then combines the SDKs into a single
 artifactbundle with targetTriples for each of the supported
 architectures (`aarch64`, `x86_64`, `aarmv7`)
-and Android API levels (28-35).
+and Android API levels (23-35).
 
 ## Specifying Architectures
 

swift-ci/sdks/android/build-docker

@@ -18,7 +18,6 @@
 TARGET_ARCHS=${TARGET_ARCHS:-aarch64,x86_64,armv7}
 
 ANDROID_NDK_VERSION=android-ndk-r27d
-ANDROID_API=28
 
 BASEPATH=$(dirname $(realpath $0))
 cd ${BASEPATH}
@@ -39,16 +38,6 @@ source ./scripts/toolchain-vars.sh
 # Check-out and patch the sources
 ./scripts/fetch-source.sh --source-dir ${WORKDIR}/source
 
-# This `git grep` invocation in a trunk test fails in our Docker for some
-# reason, so just turn it into a plain `grep` again.
-perl -pi -e 's:"git",:#:' ${WORKDIR}/source/swift-project/swift/test/Misc/verify-swift-feature-testing.test-sh
-
-# Work around swiftlang/swift-driver#1822 for now
-perl -pi -g -we "s#(call rm ... \".\{LIBDISPATCH_BUILD_DIR\}\"\n(\s+)fi\n)#\1\2if [[ -d \"\\\${ANDROID_NDK}\" ]]; then call ln -sf \"\\\${SWIFT_BUILD_PATH}/lib/swift\" \"\\\${ANDROID_NDK}/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib\"; fi#" ${WORKDIR}/source/swift-project/swift/utils/build-script-impl
-
-# disable backtrace() for Android (needs either API33+ or libandroid-execinfo, or to manually add in backtrace backport)
-perl -pi -e 's;os\(Android\);os\(AndroidDISABLED\);g' ${WORKDIR}/source/swift-project/swift-testing/Sources/Testing/SourceAttribution/Backtrace.swift
-
 mkdir -p ${WORKDIR}/products
 chmod ugo+rwx ${WORKDIR}/products
 
@@ -70,6 +59,5 @@ $DOCKER run -i --rm \
             --products-dir "/products" \
             --host-toolchain "/usr/local/swift" \
             --build-compiler "${BUILD_COMPILER}" \
-            --android-api "${ANDROID_API}" \
             --ndk-home "/usr/local/ndk/${ANDROID_NDK_VERSION}" \
             --archs "${TARGET_ARCHS}"

swift-ci/sdks/android/build-local

@@ -18,7 +18,6 @@
 TARGET_ARCHS=${TARGET_ARCHS:-aarch64,x86_64,armv7}
 
 ANDROID_NDK_VERSION=android-ndk-r27d
-ANDROID_API=28
 
 BASEPATH=$(dirname $(realpath $0))
 cd ${BASEPATH}
@@ -61,15 +60,6 @@ fi
 
 # Check-out and patch the sources
 ./scripts/fetch-source.sh --source-dir ${WORKDIR}/source
-# This `git grep` invocation in a trunk test fails in our Docker for some
-# reason, so just turn it into a plain `grep` again.
-perl -pi -e 's:"git",:#:' ${WORKDIR}/source/swift-project/swift/test/Misc/verify-swift-feature-testing.test-sh
-
-# Work around swiftlang/swift-driver#1822 for now
-perl -pi -g -we "s#(call rm ... \".\{LIBDISPATCH_BUILD_DIR\}\"\n(\s+)fi\n)#\1\2if [[ -d \"\\\${ANDROID_NDK}\" ]]; then call ln -sf \"\\\${SWIFT_BUILD_PATH}/lib/swift\" \"\\\${ANDROID_NDK}/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib\"; fi#" ${WORKDIR}/source/swift-project/swift/utils/build-script-impl
-
-# disable backtrace() for Android (needs either API33+ or libandroid-execinfo, or to manually add in backtrace backport)
-perl -pi -e 's;os\(Android\);os\(AndroidDISABLED\);g' ${WORKDIR}/source/swift-project/swift-testing/Sources/Testing/SourceAttribution/Backtrace.swift
 
 mkdir -p ${WORKDIR}/products
 
@@ -79,6 +69,5 @@ mkdir -p ${WORKDIR}/products
     --build-dir "${WORKDIR}/build" \
     --build-compiler "${BUILD_COMPILER}" \
     --host-toolchain "${HOST_TOOLCHAIN}" \
-    --android-api "${ANDROID_API}" \
     --ndk-home "${ANDROID_NDK_HOME}" \
     --archs "${TARGET_ARCHS}"

swift-ci/sdks/android/scripts/build.sh

@@ -128,7 +128,7 @@ declare_package boringssl "boringssl" "OpenSSL AND ISC AND MIT" \
 android_sdk_version=0.1
 sdk_name=
 archs=aarch64,armv7,x86_64
-android_api=28
+android_api=23
 build_type=Release
 parallel_jobs=$(($(nproc --all) + 2))
 source_dir=
@@ -345,12 +345,12 @@ for arch in $archs; do
             -DCMAKE_TOOLCHAIN_FILE=$ndk_home/build/cmake/android.toolchain.cmake \
             -DCMAKE_BUILD_TYPE=$build_type \
             -DCMAKE_EXTRA_LINK_FLAGS="-rtlib=compiler-rt -unwindlib=libunwind -stdlib=libc++ -fuse-ld=lld -lc++ -lc++abi -Wl,-z,max-page-size=16384" \
-            -DCMAKE_BUILD_TYPE=$build_type \
             -DCMAKE_INSTALL_PREFIX=$sdk_root/usr \
             -DLIBXML2_WITH_PYTHON=NO \
             -DLIBXML2_WITH_ICU=NO \
             -DLIBXML2_WITH_ICONV=NO \
             -DLIBXML2_WITH_LZMA=NO \
+            -DLIBXML2_WITH_TESTS=OFF \
             -DBUILD_SHARED_LIBS=OFF \
             -DBUILD_STATIC_LIBS=ON
 

swift-ci/sdks/android/scripts/fetch-source.sh

@@ -161,3 +161,32 @@ pushd boringssl >/dev/null 2>&1
 git checkout ${BORINGSSL_VERSION}
 popd >/dev/null 2>&1
 groupend
+
+groupstart "Patching Sources"
+pushd swift-project >/dev/null
+
+# This `git grep` invocation in a trunk test fails in our Docker for some
+# reason, so just turn it into a plain `grep` again.
+perl -pi -e 's:"git",:#:' swift/test/Misc/verify-swift-feature-testing.test-sh
+
+# Work around swiftlang/swift-driver#1822 for now
+perl -pi -g -we "s#(call rm ... \".\{LIBDISPATCH_BUILD_DIR\}\"\n(\s+)fi\n)#\1\2if [[ -d \"\\\${ANDROID_NDK}\" ]]; then call ln -sf \"\\\${SWIFT_BUILD_PATH}/lib/swift\" \"\\\${ANDROID_NDK}/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib\"; fi#" swift/utils/build-script-impl
+
+# fix optional result value in backtrace() call
+perl -pi -e 's;.init\(clamping: addresses.count\)\)\);.init\(clamping: addresses.count\)\) ?? 0\);g' swift-testing/Sources/Testing/SourceAttribution/Backtrace.swift
+
+# disable backtrace() for Android (needs either API33+ or libandroid-execinfo, or to manually add in backtrace backport); will be fixed post 6.2 (in which case only the above patch is needed)
+perl -pi -e 's;os\(Android\);os\(AndroidDISABLED\);g' swift-testing/Sources/Testing/SourceAttribution/Backtrace.swift
+
+
+# Disable posix_spawnattr_* calls for Android API 23
+perl -pi -e 's;try _throwIfPosixError\(posix_spawnattr_init;throw NSError\(domain: NSPOSIXErrorDomain, code: .init\(ENOEXEC\), userInfo: [ NSLocalizedFailureReasonErrorKey: "Process unavailable on Android" ]\) //try _throwIfPosixError\(posix_spawnattr_init;g' swift-corelibs-foundation/Sources/Foundation/Process.swift
+perl -pi -e 's;try _throwIfPosixError\(posix_spawnattr_setflags;//try _throwIfPosixError\(posix_spawnattr_setflags;g' swift-corelibs-foundation/Sources/Foundation/Process.swift
+perl -pi -e 's;posix_spawnattr_destroy;//posix_spawnattr_destroy;g' swift-corelibs-foundation/Sources/Foundation/Process.swift
+
+# Stub out getgrgid_r and getgrnam_r missing from Android API 23
+perl -pi -e 's;getgrgid_r|getgrnam_r;{ _, _, _, _, _ in 0 };g' swift-foundation/Sources/FoundationEssentials/Platform.swift
+
+popd >/dev/null 2>&1
+groupend
+

swift-ci/sdks/android/scripts/toolchain-vars.sh

@@ -49,8 +49,8 @@ elif [[ $SWIFT_VERSION == scheme:* ]]; then
     echo "Building $SWIFT_VERSION with prebuilt Swift $RELEASE_TAG compiler"
     BUILD_COMPILER=yes
     echo "Branch scheme builds always build the Swift compiler from source and take much longer."
-else
-    echo "Invalid Swift version=${SWIFT_VERSION}"
+else 
+    echo "Invalid SWIFT_VERSION: $SWIFT_VERSION"
     exit 1
 fi