[swift-build-dev] Building custom toolchain

Daniel Dunbar daniel_dunbar at apple.com
Thu Jun 2 12:36:39 CDT 2016


FWIW, this:
  https://gist.github.com/ddunbar/598bf66952fba0e9d8aecc54995f018e
is the script I currently use on OS X to get a working "swift-dev.xctoolchain" out of a built Swift. It isn't designed to work for anyone but me, but it should be easy to adapt.

I always run this after every build, and then use `TOOLCHAINS=swift-dev swift build` (etc) to use the development compiler.

My "toolchain-based build process" proposal will hopefully make this a no-op.

 - Daniel

> On Jun 2, 2016, at 3:12 AM, bhargav gurlanka via swift-build-dev <swift-build-dev at swift.org> wrote:
> 
> Hi all,
> 
> I'm trying to build a custom toolchain, but it is failing with error: 
> 
> --- Installing swift ---
> + env DESTDIR=// /usr/local/bin/cmake --build /Users/bhargavg/Documents/workspaces/xcode/github/apple/build/bhargavg/swift-macosx-x86_64 -- install
> ninja: error: unknown target 'install'
> swift/utils/build-script: fatal error: command terminated with a non-zero exit status 1, aborting
> 
> 
> Script to build toolchain: 
> 
> #!/bin/bash
> #
> # Faster toolchain build: skips as much as possible.
> #
> # To use this toolchain from the command line:"
> #     export TOOLCHAINS=$(whoami)
> #
> # we build to the same prefix every time (instead of building
> # to a versioned prefix) because every time the prefix changes
> # *everything* rebuilds.
> 
> set -e
> trap "exit;" SIGINT SIGTERM
> 
> SRCROOT="$HOME/Documents/workspaces/xcode/github/apple/"
> 
> ALIAS=$(whoami)
> TOOLCHAIN_NAME="swift-${ALIAS}.xctoolchain"
> TOOLCHAIN_PREFIX="$HOME/Library/Developer/Toolchains/${TOOLCHAIN_NAME}"
> 
> export TOOLCHAINS=default
> 
> if [[ $1 == "--reconfigure" ]]; then
>     RECONFIGURE="--reconfigure"
> fi
> 
> # so if anything is put in the wrong place we will *see* it
> cd "$HOME/Desktop"
> 
> "$SRCROOT/swift/utils/build-script" \
>         --release \
>         --llvm \
>         --llbuild \
>         --swiftpm \
>         --build-subdir="${ALIAS}" \
>         --assertions \
>         --no-swift-stdlib-assertions \
>         --install-prefix="${TOOLCHAIN_PREFIX}/usr" \
>         --lldb \
>         --darwin-xcrun-toolchain=mxcl \
>         -- \
>         --lldb-use-system-debugserver \
>         ${RECONFIGURE} \
>         --skip-ios \
>         --skip-tvos \
>         --skip-watchos \
>         --skip-build-linux \
>         --skip-build-freebsd \
>         --skip-build-cygwin \
>         --skip-build-ios \
>         --skip-build-ios-device \
>         --skip-build-ios-simulator \
>         --skip-build-tvos \
>         --skip-build-tvos-device \
>         --skip-build-tvos-simulator \
>         --skip-build-watchos \
>         --skip-build-watchos-device \
>         --skip-build-watchos-simulator \
>         --skip-build-xctest \
>         --skip-build-foundation \
>         --skip-build-libdispatch \
>         --skip-build-benchmarks \
>         --skip-test-cmark \
>         --skip-test-lldb \
>         --skip-test-swift \
>         --skip-test-llbuild \
>         --skip-test-swiftpm \
>         --skip-test-xctest \
>         --skip-test-foundation \
>         --skip-test-libdispatch \
>         --skip-test-linux \
>         --skip-test-freebsd \
>         --skip-test-cygwin \
>         --skip-test-osx \
>         --skip-test-ios-simulator \
>         --skip-test-ios-host \
>         --skip-test-tvos-simulator \
>         --skip-test-tvos-host \
>         --skip-test-watchos-simulator \
>         --skip-test-watchos-host \
>         --skip-test-benchmarks \
>         --skip-test-optimized \
>         --stdlib-deployment-targets=macosx-x86_64 \
>         --swift-enable-ast-verifier=0 \
>         --build-swift-examples=0 \
>         --build-swift-stdlib-unittest-extra=0 \
>         --build-swift-static-stdlib=1 \
>         --compiler-vendor=apple \
>         --swift-install-components="compiler;clang-builtin-headers;stdlib;sdk-overlay;license;sourcekit-xpc-service" \
>         --llvm-install-components="libclang;libclang-headers" \
>         --install-swift=1 \
>         --install-llbuild=1 \
>         --install-swiftpm=1 \
>         --install-destdir="/" \
>         --install-lldb=1 \
>         --toolchain-prefix="${TOOLCHAIN_PREFIX}"
> 
> 
> # doing by hand as the only other way to trigger this
> # is by specifying --installable-package, which tars
> # all installed products and is super slow
> 
> DATE=$(date +%Y.%m.%d)
> SWIFT_VERSION=$("${TOOLCHAIN_PREFIX}/usr/bin/swift" --version | ruby -e 'ARGF.read =~ /Swift version (\d+\.\d(\.\d+)?(-.*?)?) /; print "#{$1}\n"')
> 
> if [[ "$SWIFT_VERSION" == "3.0-dev" ]]; then
>     SWIFT_VERSION="3.0.0-dev"
> fi
> 
> VERSION="${SWIFT_VERSION}-${ALIAS}+${DATE}"
> 
> cat > "${TOOLCHAIN_PREFIX}/Info.plist" <<EOF
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd <http://www.apple.com/DTDs/PropertyList-1.0.dtd>">
> <plist version="1.0">
> <dict>
> 	<key>Aliases</key>
> 	<array>
> 		<string>${ALIAS}</string>
> 	</array>
> 	<key>CompatibilityVersion</key>
> 	<integer>2</integer>
> 	<key>CFBundleIdentifier</key>
> 	<string>org.swift.${SWIFT_VERSION}.${ALIAS}</string>
> 	<key>DisplayName</key>
> 	<string>Swift ${SWIFT_VERSION}.${ALIAS}+${DATE}</string>
> 	<key>ReportProblemURL</key>
> 	<string>https://bugs.swift.org/ <https://bugs.swift.org/></string>
> 	<key>Version</key>
> 	<string>${DATE}</string>
>     <key>OverrideEnvironment</key>
> 	<dict>
> 		<key>ENABLE_BITCODE</key>
> 		<false/>
> 		<key>SWIFT_DISABLE_REQUIRED_ARCLITE</key>
> 		<true/>
> 		<key>SWIFT_LINK_OBJC_RUNTIME</key>
> 		<true/>
> 	</dict>
> </dict>
> </plist>
> EOF
> 
> 
> # again, only way to trigger this otherwise is do a lengthy --installable-package step
> 
> cp "${SRCROOT}/swift/utils/swift-stdlib-tool-substitute" "${TOOLCHAIN_PREFIX}/usr/bin/swift-stdlib-tool"
> 
> 
> You can find the script at: https://gist.github.com/bhargavg/e40b2e7cfe3b34ca5decdb6531068365 <https://gist.github.com/bhargavg/e40b2e7cfe3b34ca5decdb6531068365>
> 
> Regards,
> Bhargav Gurlanka
> 
> _______________________________________________
> swift-build-dev mailing list
> swift-build-dev at swift.org
> https://lists.swift.org/mailman/listinfo/swift-build-dev

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