Slava Egorov
a17d709a1d
This reverts commit 5cda2a871c.
Reason for revert: broke Flutter build.
Original change's description:
> [tools] Allow precompiling gen_kernel and compile_platform
>
> When iterating on core library changes or changes in the AOT compiler
> many seconds are wasted waiting on gen_kernel/compile_platform to
> parse Dart code. This happens because we are running these tools
> from sources on prebuilt Dart SDK.
>
> This CL allows SDK developer to opt-in into AOT compiling these
> tools by adding `precompile_tools=true` to their DART_GN_ARGS.
>
> AOT compilation is performed using prebuilt SDK - so these
> executables do not need to be recompiled if core libraries or
> VM changes reducing iteration cycles.
>
> pkg/vm/tool/precompiler2 is tweaked to detect when DART_GN_ARGS
> contains `precompile_tools=true` and use precompiled
> gen_kernel.exe instead of running it from source.
>
> Using precompiled compile_platform takes vm_platform_strong.dill
> build from 20 seconds to 3 seconds.
>
> Using precompiled gen_kernel takes small benchmark build from
> ~10 seconds to 2 seconds.
>
> TEST=manually tested
>
> Change-Id: Ieec6ad4e1081023d140eb744f0a3cd0c754414ca
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/367940
> Commit-Queue: Slava Egorov <vegorov@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
Change-Id: Id3e4eb44d33516f31c165d9a1e55911e8d356e7f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/367960
Commit-Queue: Slava Egorov <vegorov@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
128 lines
3.7 KiB
Bash
Executable File
128 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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# for details. All rights reserved. Use of this source code is governed by a
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# BSD-style license that can be found in the LICENSE file.
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# Script for generating AOT snapshot using Dart 2 pipeline: Fasta with
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# strong mode enabled, AOT specific Kernel-to-Kernel transformations and
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# Dart VM precompiler with strong mode semantics and reified generics.
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# Parse incoming arguments and extract the value of --packages option if any
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# was passed. Split options (--xyz) and non-options into two separate arrays.
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# All options will be passed to gen_snapshot, while --packages will be
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# passed to Fasta.
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set -e
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OPTIONS=()
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GEN_KERNEL_OPTIONS=()
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PACKAGES=
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BUILD_ASM=0
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ARGV=()
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for arg in "$@"; do
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case $arg in
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--packages=*)
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PACKAGES="$arg"
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;;
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--enable-asserts | \
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--sound-null-safety | \
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--no-sound-null-safety | \
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--enable-experiment=*)
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GEN_KERNEL_OPTIONS+=("$arg")
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OPTIONS+=("$arg")
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;;
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--tfa | \
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--no-tfa | \
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--protobuf-tree-shaker-v2 | \
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--minimal-kernel | \
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--no-embed-sources | \
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-D* )
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GEN_KERNEL_OPTIONS+=("$arg")
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;;
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--build-assembly)
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BUILD_ASM=1
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;;
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-v*)
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set -x
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;;
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--*)
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OPTIONS+=("$arg")
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;;
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*)
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ARGV+=("$arg")
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;;
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esac
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done
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if [ "${#ARGV[@]}" -ne 2 ]; then
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echo "Usage: $0 [options] <source> <snapshot>"
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exit 1
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fi
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SOURCE_FILE="${ARGV[0]}"
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SNAPSHOT_FILE="${ARGV[1]}"
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if [ $BUILD_ASM -eq 1 ]; then
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GEN_SNAPSHOT_OPTION="--snapshot-kind=app-aot-assembly"
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GEN_SNAPSHOT_FILENAME="--assembly=${SNAPSHOT_FILE}.S"
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else
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GEN_SNAPSHOT_OPTION="--snapshot-kind=app-aot-elf"
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GEN_SNAPSHOT_FILENAME="--elf=${SNAPSHOT_FILE}"
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fi
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function follow_links() {
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file="$1"
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while [ -h "$file" ]; do
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# On Mac OS, readlink -f doesn't work.
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file="$(readlink "$file")"
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done
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echo "$file"
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}
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# Unlike $0, $BASH_SOURCE points to the absolute path of this file.
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PROG_NAME="$(follow_links "$BASH_SOURCE")"
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# Handle the case where dart-sdk/bin has been symlinked to.
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CUR_DIR="$(cd "${PROG_NAME%/*}" ; pwd -P)"
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SDK_DIR="$CUR_DIR/../../.."
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if [[ `uname` == 'Darwin' ]]; then
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OUT_DIR="$SDK_DIR/xcodebuild"
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else
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OUT_DIR="$SDK_DIR/out"
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fi
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export DART_CONFIGURATION=${DART_CONFIGURATION:-ReleaseX64}
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BIN_DIR="$OUT_DIR/$DART_CONFIGURATION"
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DART="${SDK_DIR}/tools/sdks/dart-sdk/bin/dart"
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if [ ! -f "$DART" ]; then
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DART="$BIN_DIR/dart"
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fi
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# Step 1: Generate Kernel binary from the input Dart source.
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$DART \
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${DART_VM_FLAGS} \
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"${SDK_DIR}/pkg/vm/bin/gen_kernel.dart" \
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--platform "${BIN_DIR}/vm_platform_strong.dill" \
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--aot \
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"${GEN_KERNEL_OPTIONS[@]}" \
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$PACKAGES \
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-o "$SNAPSHOT_FILE.dill" \
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"$SOURCE_FILE"
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# Step 2: Generate snapshot from the Kernel binary.
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"$BIN_DIR"/gen_snapshot \
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${GEN_SNAPSHOT_FLAGS} \
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"$GEN_SNAPSHOT_OPTION" \
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"$GEN_SNAPSHOT_FILENAME" \
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"${OPTIONS[@]}" \
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"$SNAPSHOT_FILE.dill"
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# Step 3: Assemble the assembly file into an ELF object.
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if [ $BUILD_ASM -eq 1 ]; then
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gcc -shared -o "$SNAPSHOT_FILE" "${SNAPSHOT_FILE}.S"
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fi
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