Bazel: Retire pigweed_config (part 1)

This change introduces new label flags in targets/BUILD.bazel, but
doesn't yet remove the old pigweed_config mechanism. This will allow
downstream projects to have a soft transition: they can replace all
references to pigweed_config with those to the new label flags. A
followup CL will remove the pigweed_config altogether.

Bug: b/291106264
Change-Id: I2ee8517881f12a5dfd3201be1088a5777940c073
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/168721
Reviewed-by: Kayce Basques <kayce@google.com>
Commit-Queue: Ted Pudlik <tpudlik@google.com>
Reviewed-by: Armando Montanez <amontanez@google.com>

1 files changed, 206 insertions, 0 deletions

diff --git a/targets/BUILD.bazel b/targets/BUILD.bazel
index 486d1ed0b..2a7fb6ba4 100644
--- a/targets/BUILD.bazel
+++ b/targets/BUILD.bazel
@@ -11,3 +11,209 @@
 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 # License for the specific language governing permissions and limitations under
 # the License.
+
+# Bazel build flags.
+#
+# See for how these flags are used.
+#
+# Please keep this list sorted by name, i.e. the following command should yield
+# no output:
+#
+#   t=$(grep 'name = ' targets/BUILD.bazel); diff <(echo $t) <(echo $t | sort)
+
+package(default_visibility = ["//visibility:public"])
+
+label_flag(
+    name = "freertos_config",
+    build_setting_default = "@pigweed//third_party/freertos:freertos_config",
+)
+
+label_flag(
+    name = "mcuxpresso_sdk",
+    build_setting_default = "@pigweed//third_party/mcuxpresso:default_mcuxpresso_sdk",
+)
+
+label_flag(
+    name = "pw_assert_backend",
+    build_setting_default = "@pigweed//pw_assert:backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_assert_backend_impl",
+    build_setting_default = "@pigweed//pw_assert:backend_impl_multiplexer",
+)
+
+label_flag(
+    name = "pw_async_task_backend",
+    build_setting_default = "@pigweed//pw_async_basic:task",
+)
+
+label_flag(
+    name = "pw_async_fake_dispatcher_backend",
+    build_setting_default = "@pigweed//pw_async_basic:fake_dispatcher",
+)
+
+label_flag(
+    name = "pw_boot_backend",
+    build_setting_default = "@pigweed//pw_boot:backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_chrono_system_clock_backend",
+    build_setting_default = "@pigweed//pw_chrono:system_clock_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_chrono_system_timer_backend",
+    build_setting_default = "@pigweed//pw_chrono:system_timer_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_crypto_ecdsa_backend",
+    build_setting_default = "@pigweed//pw_crypto:ecdsa_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_crypto_sha256_backend",
+    build_setting_default = "@pigweed//pw_crypto:sha256_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_fuzzer_fuzztest_backend",
+    build_setting_default = "@pigweed//pw_fuzzer:fuzztest_stub",
+)
+
+label_flag(
+    name = "pw_interrupt_backend",
+    build_setting_default = "@pigweed//pw_interrupt:backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_log_backend",
+    build_setting_default = "@pigweed//pw_log:backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_log_string_handler_backend",
+    build_setting_default = "@pigweed//pw_log_string:handler_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_log_tokenized_handler_backend",
+    build_setting_default = "@pigweed//pw_log_tokenized:base64_over_hdlc",
+)
+
+label_flag(
+    name = "pw_malloc_backend",
+    build_setting_default = "@pigweed//pw_malloc:backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_perf_test_timer_backend",
+    build_setting_default = "@pigweed//pw_perf_test:timer_multiplexer",
+)
+
+label_flag(
+    name = "pw_rpc_system_server_backend",
+    build_setting_default = "@pigweed//pw_rpc/system_server:system_server_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_sync_binary_semaphore_backend",
+    build_setting_default = "@pigweed//pw_sync:binary_semaphore_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_sync_counting_semaphore_backend",
+    build_setting_default = "@pigweed//pw_sync:counting_semaphore_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_sync_interrupt_spin_lock_backend",
+    build_setting_default = "@pigweed//pw_sync:interrupt_spin_lock_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_sync_mutex_backend",
+    build_setting_default = "@pigweed//pw_sync:mutex_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_sync_recursive_mutex_backend",
+    build_setting_default = "@pigweed//pw_sync:recursive_mutex_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_sync_thread_notification_backend",
+    build_setting_default = "@pigweed//pw_sync:thread_notification_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_sync_timed_mutex_backend",
+    build_setting_default = "@pigweed//pw_sync:timed_mutex_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_sync_timed_thread_notification_backend",
+    build_setting_default = "@pigweed//pw_sync:timed_thread_notification_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_sys_io_backend",
+    build_setting_default = "@pigweed//pw_sys_io:backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_system_target_hooks_backend",
+    build_setting_default = "@pigweed//pw_system:target_hooks_multiplexer",
+)
+
+label_flag(
+    name = "pw_thread_id_backend",
+    build_setting_default = "@pigweed//pw_thread:id_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_thread_iteration_backend",
+    build_setting_default = "@pigweed//pw_thread:iteration_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_thread_sleep_backend",
+    build_setting_default = "@pigweed//pw_thread:sleep_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_thread_test_thread_context_backend",
+    build_setting_default = "@pigweed//pw_thread:test_thread_context_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_thread_thread_backend",
+    build_setting_default = "@pigweed//pw_thread:thread_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_thread_yield_backend",
+    build_setting_default = "@pigweed//pw_thread:yield_backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_trace_backend",
+    build_setting_default = "@pigweed//pw_trace:backend_multiplexer",
+)
+
+label_flag(
+    name = "pw_unit_test_googletest_backend",
+    build_setting_default = "@pigweed//pw_unit_test:light",
+)
+
+label_flag(
+    name = "pw_unit_test_main",
+    build_setting_default = "@pigweed//pw_unit_test:simple_printing_main",
+)
+
+label_flag(
+    name = "target_rtos",
+    build_setting_default = "@pigweed//pw_build/constraints/rtos:none",
+)