blob: 9390db6af1111aa421c6f9d878b03259db9e2d07 [file] [log] [blame]
#!/usr/bin/env bash
# Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
# for details. All rights reserved. Use of this source code is governed by a
# BSD-style license that can be found in the LICENSE file.
# Script for generating AOT snapshot in two steps:
# - Compilation to kernel with additional AOT specific transformations.
# - Compilation of kernel into snapshot using gen_snapshot.
# Parse incoming arguments and extract the value of --packages option if any
# was passed. Split options (--xyz) and non-options into two separate arrays.
# All options will be passed to gen_snapshot, while --packages will be
# passed to the CFE (Common Front-End).
set -e
OPTIONS=()
GEN_KERNEL_OPTIONS=()
PACKAGES=
BUILD_ELF=0
ARGV=()
for arg in "$@"; do
case $arg in
--packages=*)
PACKAGES="$arg"
;;
--enable-asserts)
GEN_KERNEL_OPTIONS+=("$arg")
OPTIONS+=("$arg")
;;
--tfa | \
--no-tfa | \
-D* )
GEN_KERNEL_OPTIONS+=("$arg")
;;
--build-elf)
BUILD_ELF=1
;;
--*)
OPTIONS+=("$arg")
;;
*)
ARGV+=("$arg")
;;
esac
done
if [ "${#ARGV[@]}" -ne 2 ]; then
echo "Usage: $0 [options] <dart-source-file> <dart-aot-file>"
echo ""
echo "Dart AOT (ahead-of-time) compile Dart source code into native machine code."
exit 1
fi
SOURCE_FILE="${ARGV[0]}"
SNAPSHOT_FILE="${ARGV[1]}"
if [ $BUILD_ELF -eq 1 ]; then
GEN_SNAPSHOT_OPTION="--snapshot-kind=app-aot-assembly"
GEN_SNAPSHOT_FILENAME="--assembly=${SNAPSHOT_FILE}.S"
else
GEN_SNAPSHOT_OPTION="--snapshot-kind=app-aot-blobs"
GEN_SNAPSHOT_FILENAME="--blobs_container_filename=${SNAPSHOT_FILE}"
fi
function follow_links() {
file="$1"
while [ -h "$file" ]; do
# On Mac OS, readlink -f doesn't work.
file="$(readlink "$file")"
done
echo "$file"
}
# Unlike $0, $BASH_SOURCE points to the absolute path of this file.
PROG_NAME="$(follow_links "$BASH_SOURCE")"
# Handle the case where dart-sdk/bin has been symlinked to.
BIN_DIR="$(cd "${PROG_NAME%/*}" ; pwd -P)"
SDK_DIR="$(cd "${BIN_DIR}/.." ; pwd -P)"
DART="$BIN_DIR/dart"
GEN_SNAPSHOT="$BIN_DIR/utils/gen_snapshot"
SNAPSHOT_DIR="$BIN_DIR/snapshots"
SNAPSHOT="$SNAPSHOT_DIR/gen_kernel.dart.snapshot"
# Step 1: Generate Kernel binary from the input Dart source.
"$DART" \
"${SNAPSHOT}" \
--platform "${SDK_DIR}/lib/_internal/vm_platform_strong.dill" \
--aot \
-Ddart.vm.product=true \
"${GEN_KERNEL_OPTIONS[@]}" \
$PACKAGES \
-o "$SNAPSHOT_FILE.dill" \
"$SOURCE_FILE"
# Step 2: Generate snapshot from the Kernel binary.
"$GEN_SNAPSHOT" \
"$GEN_SNAPSHOT_OPTION" \
"$GEN_SNAPSHOT_FILENAME" \
"${OPTIONS[@]}" \
"$SNAPSHOT_FILE.dill"
# Step 3: Assemble the assembly file into an ELF object.
if [ $BUILD_ELF -eq 1 ]; then
gcc -shared -o "$SNAPSHOT_FILE" "${SNAPSHOT_FILE}.S"
fi