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https://github.com/dart-lang/sdk
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004d49bd6b
Change-Id: I7f5892d66f9e7bd08ca064fb2df329794a56faf5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/116527 Reviewed-by: Leaf Petersen <leafp@google.com> Commit-Queue: Paul Berry <paulberry@google.com>
112 lines
3.4 KiB
Bash
Executable file
112 lines
3.4 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Copyright (c) 2019, 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 in two steps:
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# - Compilation to kernel with additional AOT specific transformations.
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# - Compilation of kernel into snapshot using gen_snapshot.
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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 the CFE (Common Front-End).
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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_ELF=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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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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-D* )
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GEN_KERNEL_OPTIONS+=("$arg")
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;;
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--build-elf)
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BUILD_ELF=1
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;;
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--*)
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OPTIONS+=("$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: $0 [options] <dart-source-file> <dart-aot-file>"
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echo ""
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echo "Dart AOT (ahead-of-time) compile Dart source code into native machine code."
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exit 1
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fi
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SOURCE_FILE="${ARGV[0]}"
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SNAPSHOT_FILE="${ARGV[1]}"
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if [ $BUILD_ELF -eq 1 ]; then
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GEN_SNAPSHOT_OPTION="--snapshot-kind=app-aot-assembly"
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GEN_SNAPSHOT_FILENAME="--assembly=${SNAPSHOT_FILE}.S"
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else
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GEN_SNAPSHOT_OPTION="--snapshot-kind=app-aot-blobs"
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GEN_SNAPSHOT_FILENAME="--blobs_container_filename=${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 "$BASH_SOURCE")"
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# Handle the case where dart-sdk/bin has been symlinked to.
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BIN_DIR="$(cd "${PROG_NAME%/*}" ; pwd -P)"
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SDK_DIR="$(cd "${BIN_DIR}/.." ; pwd -P)"
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DART="$BIN_DIR/dart"
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GEN_SNAPSHOT="$BIN_DIR/utils/gen_snapshot"
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SNAPSHOT_DIR="$BIN_DIR/snapshots"
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SNAPSHOT="$SNAPSHOT_DIR/gen_kernel.dart.snapshot"
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# Step 1: Generate Kernel binary from the input Dart source.
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"$DART" \
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"${SNAPSHOT}" \
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--platform "${SDK_DIR}/lib/_internal/vm_platform_strong.dill" \
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--aot \
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-Ddart.vm.product=true \
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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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"$GEN_SNAPSHOT" \
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"$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 [ $BUILD_ELF -eq 1 ]; then
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gcc -shared -o "$SNAPSHOT_FILE" "${SNAPSHOT_FILE}.S"
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fi
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