BUILD.gn: Split dawn_component/generator in their own files
This will allow follow up commits to use them from the different parts of the split-off BUILD.gn file. BUG=dawn:61 Change-Id: I767f6c97c06ee73290d3df482880d1a2df92e187 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/5301 Reviewed-by: Kai Ninomiya <kainino@chromium.org> Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This commit is contained in:
Corentin Wallez
Commit Bot service account
parent
1cc386687c
commit
abc753c9c9
217
BUILD.gn
217
BUILD.gn
|
|
@ -13,8 +13,10 @@
|
||||||
# limitations under the License.
|
# limitations under the License.
|
||||||
|
|
||||||
import("//build_overrides/build.gni")
|
import("//build_overrides/build.gni")
|
||||||
|
import("scripts/dawn_component.gni")
|
||||||
import("scripts/dawn_features.gni")
|
import("scripts/dawn_features.gni")
|
||||||
import("scripts/dawn_overrides_with_defaults.gni")
|
import("scripts/dawn_overrides_with_defaults.gni")
|
||||||
|
import("generator/dawn_generator.gni")
|
||||||
|
|
||||||
import("//testing/test.gni")
|
import("//testing/test.gni")
|
||||||
|
|
||||||
|
|
@ -26,221 +28,6 @@ if (build_with_chromium) {
|
||||||
dcheck_always_on = false
|
dcheck_always_on = false
|
||||||
}
|
}
|
||||||
|
|
||||||
###############################################################################
|
|
||||||
# Template to wrap the Dawn code generator
|
|
||||||
###############################################################################
|
|
||||||
|
|
||||||
# Template to help with invocation of the Dawn code generator, looks like this:
|
|
||||||
#
|
|
||||||
# dawn_generator("my_target_gen") {
|
|
||||||
# # Which generator target to output
|
|
||||||
# target = "my_target"
|
|
||||||
# # The list of expected outputs, generation fails if there's a mismatch
|
|
||||||
# outputs = [
|
|
||||||
# "MyTarget.cpp",
|
|
||||||
# "MyTarget.h",
|
|
||||||
# ]
|
|
||||||
# }
|
|
||||||
#
|
|
||||||
# Using the generated files is done like so:
|
|
||||||
#
|
|
||||||
# shared_library("my_target") {
|
|
||||||
# deps = [ ":my_target_gen "]
|
|
||||||
# sources = get_target_outputs(":my_target_gen")
|
|
||||||
# }
|
|
||||||
#
|
|
||||||
template("dawn_generator") {
|
|
||||||
# The base arguments for the generator: from this dawn.json, generate this
|
|
||||||
# target using templates in this directory.
|
|
||||||
generator_args = [
|
|
||||||
rebase_path("dawn.json", root_build_dir),
|
|
||||||
"--wire-json",
|
|
||||||
rebase_path("dawn_wire.json", root_build_dir),
|
|
||||||
"--template-dir",
|
|
||||||
rebase_path("generator/templates", root_build_dir),
|
|
||||||
"--targets",
|
|
||||||
invoker.target,
|
|
||||||
]
|
|
||||||
|
|
||||||
# Use the Jinja2 version pulled from the DEPS file. We do it so we don't
|
|
||||||
# have version problems, and users don't have to install Jinja2.
|
|
||||||
jinja2_python_path = rebase_path("${dawn_jinja2_dir}/..")
|
|
||||||
generator_args += [
|
|
||||||
"--extra-python-path",
|
|
||||||
jinja2_python_path,
|
|
||||||
]
|
|
||||||
|
|
||||||
# For build parallelism GN wants to know the exact inputs and outputs of
|
|
||||||
# action targets like we use for our code generator. We avoid asking the
|
|
||||||
# generator about its inputs by using the "depfile" feature of GN/Ninja.
|
|
||||||
#
|
|
||||||
# A ninja limitation is that the depfile is a subset of Makefile that can
|
|
||||||
# contain a single target, so we output a single "JSON-tarball" instead.
|
|
||||||
json_tarball = "${target_gen_dir}/${target_name}.json_tarball"
|
|
||||||
json_tarball_depfile = "${json_tarball}.d"
|
|
||||||
|
|
||||||
generator_args += [
|
|
||||||
"--output-json-tarball",
|
|
||||||
rebase_path(json_tarball, root_build_dir),
|
|
||||||
"--depfile",
|
|
||||||
rebase_path(json_tarball_depfile, root_build_dir),
|
|
||||||
]
|
|
||||||
|
|
||||||
# After the JSON tarball is created we need an action target to extract it
|
|
||||||
# with a list of its outputs. The invoker provided a list of expected
|
|
||||||
# outputs. To make sure the list is in sync between the generator and the
|
|
||||||
# build files, we write it to a file and ask the generator to assert it is
|
|
||||||
# correct.
|
|
||||||
expected_outputs_file = "${target_gen_dir}/${target_name}.expected_outputs"
|
|
||||||
write_file(expected_outputs_file, invoker.outputs)
|
|
||||||
|
|
||||||
generator_args += [
|
|
||||||
"--expected-outputs-file",
|
|
||||||
rebase_path(expected_outputs_file, root_build_dir),
|
|
||||||
]
|
|
||||||
|
|
||||||
# The code generator invocation that will write the JSON tarball, check the
|
|
||||||
# outputs are what's expected and write a depfile for Ninja.
|
|
||||||
action("${target_name}_json_tarball") {
|
|
||||||
script = "generator/main.py"
|
|
||||||
outputs = [
|
|
||||||
json_tarball,
|
|
||||||
]
|
|
||||||
depfile = json_tarball_depfile
|
|
||||||
args = generator_args
|
|
||||||
}
|
|
||||||
|
|
||||||
# Extract the JSON tarball into the target_gen_dir
|
|
||||||
action("${target_name}") {
|
|
||||||
script = "generator/extract_json.py"
|
|
||||||
args = [
|
|
||||||
rebase_path(json_tarball, root_build_dir),
|
|
||||||
rebase_path(target_gen_dir, root_build_dir),
|
|
||||||
]
|
|
||||||
|
|
||||||
deps = [
|
|
||||||
":${target_name}_json_tarball",
|
|
||||||
]
|
|
||||||
inputs = [
|
|
||||||
json_tarball,
|
|
||||||
]
|
|
||||||
|
|
||||||
# The expected output list is relative to the target_gen_dir but action
|
|
||||||
# target outputs are from the root dir so we need to rebase them.
|
|
||||||
outputs = []
|
|
||||||
foreach(source, invoker.outputs) {
|
|
||||||
outputs += [ "${target_gen_dir}/${source}" ]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
###############################################################################
|
|
||||||
# Template to produce a component for one of Dawn's libraries.
|
|
||||||
###############################################################################
|
|
||||||
|
|
||||||
# Template that produces static and shared versions of the same library as well
|
|
||||||
# as a target similar to Chromium's component targets.
|
|
||||||
# - The shared version exports symbols and has dependent import the symbols
|
|
||||||
# as libname.so with target name libname_shared
|
|
||||||
# - The static library doesn't export symbols nor make dependents import them
|
|
||||||
# - The libname target is similar to a Chromium component and is an alias for
|
|
||||||
# either the static or the shared library.
|
|
||||||
#
|
|
||||||
# The DEFINE_PREFIX must be provided and must match the respective "_export.h"
|
|
||||||
# file.
|
|
||||||
#
|
|
||||||
# Example usage:
|
|
||||||
#
|
|
||||||
# dawn_component("my_library") {
|
|
||||||
# // my_library_export.h must use the MY_LIBRARY_IMPLEMENTATION and
|
|
||||||
# // MY_LIBRARY_SHARED_LIBRARY macros.
|
|
||||||
# DEFINE_PREFIX = "MY_LIBRARY"
|
|
||||||
#
|
|
||||||
# sources = [...]
|
|
||||||
# deps = [...]
|
|
||||||
# configs = [...]
|
|
||||||
# }
|
|
||||||
#
|
|
||||||
# executable("foo") {
|
|
||||||
# deps = [ ":my_library_shared" ] // or :my_library for the same effect
|
|
||||||
# }
|
|
||||||
template("dawn_component") {
|
|
||||||
# Copy the target_name in the local scope so it doesn't get shadowed in the
|
|
||||||
# definition of targets.
|
|
||||||
libname = target_name
|
|
||||||
|
|
||||||
# The config that will apply to dependents of the shared library so they know
|
|
||||||
# they should "import" the symbols
|
|
||||||
config("${libname}_shared_public_config") {
|
|
||||||
defines = [ "${invoker.DEFINE_PREFIX}_SHARED_LIBRARY" ]
|
|
||||||
|
|
||||||
# Executable needs an rpath to find our shared libraries on OSX and Linux
|
|
||||||
if (is_mac) {
|
|
||||||
ldflags = [
|
|
||||||
"-rpath",
|
|
||||||
"@executable_path/",
|
|
||||||
]
|
|
||||||
}
|
|
||||||
if (is_linux) {
|
|
||||||
configs = [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
shared_library("${libname}_shared") {
|
|
||||||
output_name = libname
|
|
||||||
|
|
||||||
# Copy all variables except "configs", which has a default value
|
|
||||||
forward_variables_from(invoker, "*", [ "configs" ])
|
|
||||||
if (defined(invoker.configs)) {
|
|
||||||
configs += invoker.configs
|
|
||||||
}
|
|
||||||
|
|
||||||
# Tell dependents where to find this shared library
|
|
||||||
if (is_mac) {
|
|
||||||
ldflags = [
|
|
||||||
"-install_name",
|
|
||||||
"@rpath/${libname}.dylib",
|
|
||||||
]
|
|
||||||
}
|
|
||||||
|
|
||||||
# Use the config that makes the ${DEFINE_PREFIX}_EXPORT macro do something
|
|
||||||
if (!defined(public_configs)) {
|
|
||||||
public_configs = []
|
|
||||||
}
|
|
||||||
public_configs += [ ":${libname}_shared_public_config" ]
|
|
||||||
|
|
||||||
# Tell sources of this library to export the symbols (and not import)
|
|
||||||
if (!defined(defines)) {
|
|
||||||
defines = []
|
|
||||||
}
|
|
||||||
defines += [ "${invoker.DEFINE_PREFIX}_IMPLEMENTATION" ]
|
|
||||||
}
|
|
||||||
|
|
||||||
static_library("${libname}_static") {
|
|
||||||
output_name = libname
|
|
||||||
|
|
||||||
complete_static_lib = dawn_complete_static_libs
|
|
||||||
|
|
||||||
# Copy all variables except "configs", which has a default value
|
|
||||||
forward_variables_from(invoker, "*", [ "configs" ])
|
|
||||||
if (defined(invoker.configs)) {
|
|
||||||
configs += invoker.configs
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
group(libname) {
|
|
||||||
if (is_component_build) {
|
|
||||||
public_deps = [
|
|
||||||
":${libname}_shared",
|
|
||||||
]
|
|
||||||
} else {
|
|
||||||
public_deps = [
|
|
||||||
":${libname}_static",
|
|
||||||
]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
###############################################################################
|
###############################################################################
|
||||||
# Common dawn libraries and configs
|
# Common dawn libraries and configs
|
||||||
###############################################################################
|
###############################################################################
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,123 @@
|
||||||
|
# Copyright 2019 The Dawn Authors
|
||||||
|
#
|
||||||
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
# you may not use this file except in compliance with the License.
|
||||||
|
# You may obtain a copy of the License at
|
||||||
|
#
|
||||||
|
# http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
#
|
||||||
|
# Unless required by applicable law or agreed to in writing, software
|
||||||
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
# See the License for the specific language governing permissions and
|
||||||
|
# limitations under the License.
|
||||||
|
|
||||||
|
import("../scripts/dawn_overrides_with_defaults.gni")
|
||||||
|
|
||||||
|
###############################################################################
|
||||||
|
# Template to wrap the Dawn code generator
|
||||||
|
###############################################################################
|
||||||
|
|
||||||
|
# Template to help with invocation of the Dawn code generator, looks like this:
|
||||||
|
#
|
||||||
|
# dawn_generator("my_target_gen") {
|
||||||
|
# # Which generator target to output
|
||||||
|
# target = "my_target"
|
||||||
|
# # The list of expected outputs, generation fails if there's a mismatch
|
||||||
|
# outputs = [
|
||||||
|
# "MyTarget.cpp",
|
||||||
|
# "MyTarget.h",
|
||||||
|
# ]
|
||||||
|
# }
|
||||||
|
#
|
||||||
|
# Using the generated files is done like so:
|
||||||
|
#
|
||||||
|
# shared_library("my_target") {
|
||||||
|
# deps = [ ":my_target_gen "]
|
||||||
|
# sources = get_target_outputs(":my_target_gen")
|
||||||
|
# }
|
||||||
|
#
|
||||||
|
template("dawn_generator") {
|
||||||
|
# The base arguments for the generator: from this dawn.json, generate this
|
||||||
|
# target using templates in this directory.
|
||||||
|
generator_args = [
|
||||||
|
rebase_path("dawn.json", root_build_dir),
|
||||||
|
"--wire-json",
|
||||||
|
rebase_path("dawn_wire.json", root_build_dir),
|
||||||
|
"--template-dir",
|
||||||
|
rebase_path("generator/templates", root_build_dir),
|
||||||
|
"--targets",
|
||||||
|
invoker.target,
|
||||||
|
]
|
||||||
|
|
||||||
|
# Use the Jinja2 version pulled from the DEPS file. We do it so we don't
|
||||||
|
# have version problems, and users don't have to install Jinja2.
|
||||||
|
jinja2_python_path = rebase_path("${dawn_jinja2_dir}/..")
|
||||||
|
generator_args += [
|
||||||
|
"--extra-python-path",
|
||||||
|
jinja2_python_path,
|
||||||
|
]
|
||||||
|
|
||||||
|
# For build parallelism GN wants to know the exact inputs and outputs of
|
||||||
|
# action targets like we use for our code generator. We avoid asking the
|
||||||
|
# generator about its inputs by using the "depfile" feature of GN/Ninja.
|
||||||
|
#
|
||||||
|
# A ninja limitation is that the depfile is a subset of Makefile that can
|
||||||
|
# contain a single target, so we output a single "JSON-tarball" instead.
|
||||||
|
json_tarball = "${target_gen_dir}/${target_name}.json_tarball"
|
||||||
|
json_tarball_depfile = "${json_tarball}.d"
|
||||||
|
|
||||||
|
generator_args += [
|
||||||
|
"--output-json-tarball",
|
||||||
|
rebase_path(json_tarball, root_build_dir),
|
||||||
|
"--depfile",
|
||||||
|
rebase_path(json_tarball_depfile, root_build_dir),
|
||||||
|
]
|
||||||
|
|
||||||
|
# After the JSON tarball is created we need an action target to extract it
|
||||||
|
# with a list of its outputs. The invoker provided a list of expected
|
||||||
|
# outputs. To make sure the list is in sync between the generator and the
|
||||||
|
# build files, we write it to a file and ask the generator to assert it is
|
||||||
|
# correct.
|
||||||
|
expected_outputs_file = "${target_gen_dir}/${target_name}.expected_outputs"
|
||||||
|
write_file(expected_outputs_file, invoker.outputs)
|
||||||
|
|
||||||
|
generator_args += [
|
||||||
|
"--expected-outputs-file",
|
||||||
|
rebase_path(expected_outputs_file, root_build_dir),
|
||||||
|
]
|
||||||
|
|
||||||
|
# The code generator invocation that will write the JSON tarball, check the
|
||||||
|
# outputs are what's expected and write a depfile for Ninja.
|
||||||
|
action("${target_name}_json_tarball") {
|
||||||
|
script = "generator/main.py"
|
||||||
|
outputs = [
|
||||||
|
json_tarball,
|
||||||
|
]
|
||||||
|
depfile = json_tarball_depfile
|
||||||
|
args = generator_args
|
||||||
|
}
|
||||||
|
|
||||||
|
# Extract the JSON tarball into the target_gen_dir
|
||||||
|
action("${target_name}") {
|
||||||
|
script = "generator/extract_json.py"
|
||||||
|
args = [
|
||||||
|
rebase_path(json_tarball, root_build_dir),
|
||||||
|
rebase_path(target_gen_dir, root_build_dir),
|
||||||
|
]
|
||||||
|
|
||||||
|
deps = [
|
||||||
|
":${target_name}_json_tarball",
|
||||||
|
]
|
||||||
|
inputs = [
|
||||||
|
json_tarball,
|
||||||
|
]
|
||||||
|
|
||||||
|
# The expected output list is relative to the target_gen_dir but action
|
||||||
|
# target outputs are from the root dir so we need to rebase them.
|
||||||
|
outputs = []
|
||||||
|
foreach(source, invoker.outputs) {
|
||||||
|
outputs += [ "${target_gen_dir}/${source}" ]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,123 @@
|
||||||
|
# Copyright 2019 The Dawn Authors
|
||||||
|
#
|
||||||
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
# you may not use this file except in compliance with the License.
|
||||||
|
# You may obtain a copy of the License at
|
||||||
|
#
|
||||||
|
# http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
#
|
||||||
|
# Unless required by applicable law or agreed to in writing, software
|
||||||
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
# See the License for the specific language governing permissions and
|
||||||
|
# limitations under the License.
|
||||||
|
|
||||||
|
import("dawn_overrides_with_defaults.gni")
|
||||||
|
import("dawn_features.gni")
|
||||||
|
|
||||||
|
###############################################################################
|
||||||
|
# Template to produce a component for one of Dawn's libraries.
|
||||||
|
###############################################################################
|
||||||
|
|
||||||
|
# Template that produces static and shared versions of the same library as well
|
||||||
|
# as a target similar to Chromium's component targets.
|
||||||
|
# - The shared version exports symbols and has dependent import the symbols
|
||||||
|
# as libname.so with target name libname_shared
|
||||||
|
# - The static library doesn't export symbols nor make dependents import them
|
||||||
|
# - The libname target is similar to a Chromium component and is an alias for
|
||||||
|
# either the static or the shared library.
|
||||||
|
#
|
||||||
|
# The DEFINE_PREFIX must be provided and must match the respective "_export.h"
|
||||||
|
# file.
|
||||||
|
#
|
||||||
|
# Example usage:
|
||||||
|
#
|
||||||
|
# dawn_component("my_library") {
|
||||||
|
# // my_library_export.h must use the MY_LIBRARY_IMPLEMENTATION and
|
||||||
|
# // MY_LIBRARY_SHARED_LIBRARY macros.
|
||||||
|
# DEFINE_PREFIX = "MY_LIBRARY"
|
||||||
|
#
|
||||||
|
# sources = [...]
|
||||||
|
# deps = [...]
|
||||||
|
# configs = [...]
|
||||||
|
# }
|
||||||
|
#
|
||||||
|
# executable("foo") {
|
||||||
|
# deps = [ ":my_library_shared" ] // or :my_library for the same effect
|
||||||
|
# }
|
||||||
|
template("dawn_component") {
|
||||||
|
# Copy the target_name in the local scope so it doesn't get shadowed in the
|
||||||
|
# definition of targets.
|
||||||
|
libname = target_name
|
||||||
|
|
||||||
|
# The config that will apply to dependents of the shared library so they know
|
||||||
|
# they should "import" the symbols
|
||||||
|
config("${libname}_shared_public_config") {
|
||||||
|
defines = [ "${invoker.DEFINE_PREFIX}_SHARED_LIBRARY" ]
|
||||||
|
|
||||||
|
# Executable needs an rpath to find our shared libraries on OSX and Linux
|
||||||
|
if (is_mac) {
|
||||||
|
ldflags = [
|
||||||
|
"-rpath",
|
||||||
|
"@executable_path/",
|
||||||
|
]
|
||||||
|
}
|
||||||
|
if (is_linux) {
|
||||||
|
configs = [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
shared_library("${libname}_shared") {
|
||||||
|
output_name = libname
|
||||||
|
|
||||||
|
# Copy all variables except "configs", which has a default value
|
||||||
|
forward_variables_from(invoker, "*", [ "configs" ])
|
||||||
|
if (defined(invoker.configs)) {
|
||||||
|
configs += invoker.configs
|
||||||
|
}
|
||||||
|
|
||||||
|
# Tell dependents where to find this shared library
|
||||||
|
if (is_mac) {
|
||||||
|
ldflags = [
|
||||||
|
"-install_name",
|
||||||
|
"@rpath/${libname}.dylib",
|
||||||
|
]
|
||||||
|
}
|
||||||
|
|
||||||
|
# Use the config that makes the ${DEFINE_PREFIX}_EXPORT macro do something
|
||||||
|
if (!defined(public_configs)) {
|
||||||
|
public_configs = []
|
||||||
|
}
|
||||||
|
public_configs += [ ":${libname}_shared_public_config" ]
|
||||||
|
|
||||||
|
# Tell sources of this library to export the symbols (and not import)
|
||||||
|
if (!defined(defines)) {
|
||||||
|
defines = []
|
||||||
|
}
|
||||||
|
defines += [ "${invoker.DEFINE_PREFIX}_IMPLEMENTATION" ]
|
||||||
|
}
|
||||||
|
|
||||||
|
static_library("${libname}_static") {
|
||||||
|
output_name = libname
|
||||||
|
|
||||||
|
complete_static_lib = dawn_complete_static_libs
|
||||||
|
|
||||||
|
# Copy all variables except "configs", which has a default value
|
||||||
|
forward_variables_from(invoker, "*", [ "configs" ])
|
||||||
|
if (defined(invoker.configs)) {
|
||||||
|
configs += invoker.configs
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
group(libname) {
|
||||||
|
if (is_component_build) {
|
||||||
|
public_deps = [
|
||||||
|
":${libname}_shared",
|
||||||
|
]
|
||||||
|
} else {
|
||||||
|
public_deps = [
|
||||||
|
":${libname}_static",
|
||||||
|
]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue