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# Copyright (c) 2016, 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.
import("../build/dart/dart_action.gni")
import("../runtime/runtime_args.gni")
import("../sdk_args.gni")
_dart_root = get_path_info("..", "abspath")
declare_args() {
# Default to building app-jit snapshots. The simulator and cross builds
# override this to script snapshots to cut down on build time.
if (target_cpu != host_cpu) {
dart_snapshot_kind = "kernel"
} else {
dart_snapshot_kind = "app-jit"
}
}
# Creates an app-jit snapshot for a Dart program based on a training run.
#
# Parameters:
# main_dart (required):
# The entrypoint to the Dart application.
#
# training_args (required):
# Arguments to pass to the Dart application for the training run.
#
# vm_args (optional):
# Additional arguments to the Dart VM.
#
# name (optional):
# The name of the snapshot if different from the target name. The output
# will be in $root_gen_dir/$name.dart.snapshot.
#
# extra_deps (optional):
# Any additional build dependencies.
#
# extra_inputs (optional):
# Any extra build inputs.
#
# dot_packages (optional):
# The .packages file for the app. Defaults to the $_dart_root/.packages.
#
# output (optional):
# Overrides the full output path.
template("_application_snapshot") {
assert(defined(invoker.main_dart), "Must specify 'main_dart'")
assert(defined(invoker.training_args), "Must specify 'training_args'")
snapshot_vm_args = []
if (defined(invoker.vm_args)) {
snapshot_vm_args = invoker.vm_args
}
main_dart = invoker.main_dart
training_args = invoker.training_args
name = target_name
if (defined(invoker.name)) {
name = invoker.name
}
extra_deps = []
if (defined(invoker.deps)) {
extra_deps += invoker.deps
}
extra_inputs = [ main_dart ]
if (defined(invoker.inputs)) {
extra_inputs += invoker.inputs
}
if (defined(invoker.dot_packages)) {
dot_packages = invoker.dot_packages
} else {
dot_packages = rebase_path("$_dart_root/.packages")
}
output = "$root_gen_dir/$name.dart.snapshot"
if (defined(invoker.output)) {
output = invoker.output
}
# Build the kernel file using the prebuilt VM to speed up the debug and
# simulator builds.
prebuilt_dart_action(target_name + "_dill") {
deps = extra_deps + [
"$_dart_root/runtime/vm:kernel_platform_files($host_toolchain)",
"$_dart_root/runtime/vm:vm_platform",
]
gen_kernel_script = "$_dart_root/pkg/vm/bin/gen_kernel.dart"
platform_dill = "$root_out_dir/vm_platform_strong.dill"
inputs = extra_inputs + [
gen_kernel_script,
platform_dill,
main_dart,
dot_packages,
]
output = "$target_gen_dir/$name.dart.dill"
outputs = [ output ]
depfile = "$output.d"
abs_depfile = rebase_path(depfile)
rebased_output = rebase_path(output, root_build_dir)
vm_args = [
"--depfile=$abs_depfile",
"--depfile_output_filename=$rebased_output",
]
script = gen_kernel_script
args = [
"--packages=" + rebase_path(dot_packages),
"--platform=" + rebase_path(platform_dill),
"--no-aot",
"--no-embed-sources",
"--no-link-platform",
"--output=" + rebase_path(output),
]
if (dart_platform_bytecode) {
args += [
"--gen-bytecode",
"--drop-ast",
"--bytecode-options=source-positions",
]
}
args += [ rebase_path(main_dart) ]
}
dart_action(target_name) {
deps = extra_deps + [ ":${target_name}_dill" ]
depfile = "$output.d"
script = "$target_gen_dir/$name.dart.dill"
inputs = extra_inputs
outputs = [ output ]
abs_depfile = rebase_path(depfile)
abs_output = rebase_path(output, root_build_dir)
vm_args = [
"--deterministic",
"--packages=$dot_packages",
"--snapshot=$abs_output",
"--snapshot-depfile=$abs_depfile",
] + snapshot_vm_args
if (dart_snapshot_kind == "kernel") {
vm_args += [ "--snapshot-kind=kernel" ]
assert(training_args != "", "Ignoring unused argument")
args = []
} else if (dart_snapshot_kind == "app-jit") {
vm_args += [ "--snapshot-kind=app-jit" ]
args = training_args
} else {
assert(false, "Bad dart_snapshot_kind: $dart_snapshot_kind")
}
}
}
# Creates an app-jit snapshot for a Dart2 program based on a training run.
#
# Parameters:
# main_dart (required):
# The entrypoint to the Dart application.
#
# training_args (required):
# Arguments to pass to the Dart application for the training run.
#
# vm_args (optional):
# Additional arguments to the Dart VM.
#
# name (optional):
# The name of the snapshot if different from the target name. The output
# will be in $root_gen_dir/$name.dart.snapshot.
#
# deps (optional):
# Any build dependencies.
#
# dot_packages (optional):
# The .packages file for the app. Defaults to the $_dart_root/.packages.
#
# output (optional):
# Overrides the full output path.
template("application_snapshot") {
_application_snapshot(target_name) {
forward_variables_from(invoker, "*")
if (!defined(invoker.deps)) {
deps = []
}
deps += [ "$_dart_root/utils/kernel-service:kernel-service" ]
}
}
# Creates an app-jit snapshot for the common FE based on a training run.
#
# Parameters:
# main_dart (required):
# The entrypoint to the Dart application.
#
# training_args (required):
# Arguments to pass to the Dart application for the training run.
#
# vm_args (optional):
# Additional arguments to the Dart VM.
#
# name (optional):
# The name of the snapshot if different from the target name. The output
# will be in $root_gen_dir/$name.dart.snapshot.
#
# deps (optional):
# Any build dependencies.
#
# dot_packages (optional):
# The .packages file for the app. Defaults to the $_dart_root/.packages.
#
# output (optional):
# Overrides the full output path.
template("kernel_application_snapshot") {
_application_snapshot(target_name) {
forward_variables_from(invoker, "*")
}
}