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# Copyright 2020 The Pigweed 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
#
# https://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("//build_overrides/pigweed.gni")
import("$dir_pw_build/facade.gni")
import("$dir_pw_build/module_config.gni")
import("$dir_pw_build/target_types.gni")
import("$dir_pw_docgen/docs.gni")
import("$dir_pw_log/backend.gni")
import("$dir_pw_log_tokenized/backend.gni")
import("$dir_pw_tokenizer/backend.gni")
import("$dir_pw_unit_test/test.gni")
declare_args() {
# The build target that overrides the default configuration options for this
# module. This should point to a source set that provides defines through a
# public config (which may -include a file or add defines directly).
pw_log_tokenized_CONFIG = pw_build_DEFAULT_MODULE_CONFIG
}
config("public_include_path") {
include_dirs = [ "public" ]
visibility = [ ":*" ]
}
config("backend_config") {
include_dirs = [ "public_overrides" ]
visibility = [ ":*" ]
}
# This target provides the backend for pw_log.
pw_source_set("pw_log_tokenized") {
public_configs = [ ":backend_config" ]
public_deps = [
":handler.facade", # Depend on the facade to avoid circular dependencies.
":headers",
]
public = [ "public_overrides/pw_log_backend/log_backend.h" ]
sources = [ "log_tokenized.cc" ]
}
config("backwards_compatibility_config") {
defines = [ "_PW_LOG_TOKENIZED_GLOBAL_HANDLER_BACKWARDS_COMPAT" ]
visibility = [ ":*" ]
}
pw_source_set("headers") {
visibility = [ ":*" ]
public_configs = [ ":public_include_path" ]
public_deps = [
":config",
":metadata",
# TODO(hepler): Remove this dependency when all projects have migrated to
# the new pw_log_tokenized handler.
"$dir_pw_tokenizer:global_handler_with_payload",
dir_pw_preprocessor,
dir_pw_tokenizer,
]
public = [ "public/pw_log_tokenized/log_tokenized.h" ]
}
# The old pw_tokenizer_GLOBAL_HANDLER_WITH_PAYLOAD_BACKEND backend may still be
# in use by projects that have not switched to the new pw_log_tokenized facade.
# Use the old backend as a stand-in for the new backend if it is set.
_old_backend_is_set = pw_tokenizer_GLOBAL_HANDLER_WITH_PAYLOAD_BACKEND != ""
_new_backend_is_set = pw_log_tokenized_HANDLER_BACKEND != ""
pw_facade("handler") {
public_configs = [ ":public_include_path" ]
public_deps = [
# TODO(hepler): Remove this dependency when all projects have migrated to
# the new pw_log_tokenized handler.
"$dir_pw_tokenizer:global_handler_with_payload",
dir_pw_preprocessor,
]
public = [ "public/pw_log_tokenized/handler.h" ]
# If the global handler backend is set, redirect the new facade to the old
# facade. If no backend is set, the old facade may still be in use through
# link deps, so provide the compatibility layer.
#
# TODO(hepler): Remove these backwards compatibility workarounds when projects
# have migrated.
if (_old_backend_is_set || (!_old_backend_is_set && !_new_backend_is_set)) {
assert(pw_log_tokenized_HANDLER_BACKEND == "",
"pw_tokenizer_GLOBAL_HANDLER_WITH_PAYLOAD_BACKEND is deprecated; " +
"only pw_log_tokenized_HANDLER_BACKEND should be set")
backend = pw_tokenizer_GLOBAL_HANDLER_WITH_PAYLOAD_BACKEND
# There is only one pw_log_tokenized backend in Pigweed, and it has been
# updated to the new API.
if (_old_backend_is_set &&
get_label_info(pw_tokenizer_GLOBAL_HANDLER_WITH_PAYLOAD_BACKEND,
"label_no_toolchain") ==
get_label_info(":base64_over_hdlc", "label_no_toolchain")) {
defines = [ "PW_LOG_TOKENIZED_BACKEND_USES_NEW_API=1" ]
} else {
defines = [ "PW_LOG_TOKENIZED_BACKEND_USES_NEW_API=0" ]
}
public_configs += [ ":backwards_compatibility_config" ]
deps = [ dir_pw_tokenizer ]
sources = [ "compatibility.cc" ]
} else {
backend = pw_log_tokenized_HANDLER_BACKEND
}
}
pw_source_set("metadata") {
public_configs = [ ":public_include_path" ]
public_deps = [ ":config" ]
public = [ "public/pw_log_tokenized/metadata.h" ]
}
pw_source_set("config") {
public_configs = [ ":public_include_path" ]
public_deps = [
"$dir_pw_log:facade",
pw_log_tokenized_CONFIG,
]
public = [ "public/pw_log_tokenized/config.h" ]
}
# The log backend deps that might cause circular dependencies, since
# pw_log is so ubiquitous. These deps are kept separate so they can be
# depended on from elsewhere.
pw_source_set("pw_log_tokenized.impl") {
deps = [ ":pw_log_tokenized" ]
if (_new_backend_is_set || _old_backend_is_set) {
deps += [ ":handler" ]
}
}
# This target provides a backend for pw_tokenizer that encodes tokenized logs as
# Base64, encodes them into HDLC frames, and writes them over sys_io.
pw_source_set("base64_over_hdlc") {
public_configs = [ ":public_include_path" ]
public = [ "public/pw_log_tokenized/base64_over_hdlc.h" ]
sources = [ "base64_over_hdlc.cc" ]
deps = [
":handler.facade",
"$dir_pw_hdlc:encoder",
"$dir_pw_stream:sys_io_stream",
"$dir_pw_tokenizer:base64",
dir_pw_span,
]
}
pw_test_group("tests") {
tests = [
":log_tokenized_test",
":metadata_test",
]
}
pw_test("log_tokenized_test") {
sources = [
"log_tokenized_test.cc",
"log_tokenized_test_c.c",
"pw_log_tokenized_private/test_utils.h",
]
deps = [
":headers",
dir_pw_preprocessor,
]
}
pw_test("metadata_test") {
sources = [ "metadata_test.cc" ]
deps = [ ":metadata" ]
}
pw_doc_group("docs") {
sources = [ "docs.rst" ]
other_deps = [ "py" ]
}
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