Enable layering_check in test BUILD files.

There were a bunch of BUILD files that didn't have layering
check enabled yet. This change enables it, and fixes the reported
missing dependencies.

Unfortunately, not all tests are clean and import only visible
headers, so disable layering check for these for a later fix.

Signed-off-by: Henner Zeller <[email protected]>

Author: hzeller

bazel/BUILD

@@ -1,6 +1,8 @@
 load("@openroad_rules_python//python:pip.bzl", "compile_pip_requirements")
 load("@rules_cc//cc:cc_library.bzl", "cc_library")
 
+package(features = ["layering_check"])
+
 compile_pip_requirements(
     name = "requirements",
     src = "requirements.in",

bazel/openmp/BUILD

@@ -14,6 +14,7 @@
 
 package(
     default_visibility = ["//visibility:private"],
+    features = ["layering_check"],
 )
 
 exports_files(

etc/BUILD

@@ -1,5 +1,7 @@
 load("@openroad_rules_python//python:defs.bzl", "py_binary")
 
+package(features = ["layering_check"])
+
 py_binary(
     name = "file_to_string",
     srcs = [

openroad/BUILD

@@ -4,6 +4,8 @@ load("@openroad_rules_python//python:defs.bzl", "py_library")
 # Copyright (c) 2025-2025, The OpenROAD Authors
 load("@openroad_rules_python//python:packaging.bzl", "py_package", "py_wheel")
 
+package(features = ["layering_check"])
+
 py_library(
     name = "openroadpy",
     srcs = [

src/ant/test/BUILD

@@ -1,5 +1,7 @@
 load("//test:regression.bzl", "regression_test")
 
+package(features = ["layering_check"])
+
 # From CMakeLists.txt or_integration_tests(TESTS
 COMPULSORY_TESTS = [
     "ant_check",

src/cgt/test/BUILD

@@ -2,6 +2,8 @@
 # Copyright (c) 2025, The OpenROAD Authors
 load("//test:regression.bzl", "regression_test")
 
+package(features = ["layering_check"])
+
 TESTS = [
     "aes_nangate45",
     "countdown_asap7",

src/cts/test/BUILD

@@ -4,6 +4,8 @@ load("@rules_cc//cc:cc_test.bzl", "cc_test")
 # Copyright (c) 2022-2025, The OpenROAD Authors
 load("//test:regression.bzl", "regression_test")
 
+package(features = ["layering_check"])
+
 # From CMakeLists.txt or_integration_tests(TESTS
 COMPULSORY_TESTS = [
     "array",
@@ -182,10 +184,10 @@ filegroup(
 cc_test(
     name = "cts_unittest",
     srcs = ["cts_unittest.cc"],
+    features = ["-layering_check"],  # TODO: accesses private headers
     linkstatic = True,  # TODO: remove once deps define all symbols
     deps = [
         "//src/cts",
-        "//src/grt",  # work around cyclic dependncy between rsz and grt
         "//src/utl",
         "@googletest//:gtest",
         "@googletest//:gtest_main",

src/cut/BUILD

@@ -5,6 +5,7 @@ load("@rules_cc//cc:cc_library.bzl", "cc_library")
 
 package(
     default_visibility = ["//:__subpackages__"],
+    features = ["layering_check"],
 )
 
 cc_library(
@@ -31,6 +32,7 @@ cc_library(
     includes = ["include"],
     deps = [
         "//src/dbSta",
+        "//src/dbSta:dbNetwork",
         "//src/odb",
         "//src/rsz",
         "//src/sta:opensta_lib",

src/cut/test/BUILD

@@ -3,6 +3,8 @@
 
 load("@rules_cc//cc:cc_test.bzl", "cc_test")
 
+package(features = ["layering_check"])
+
 cc_test(
     name = "cut_abc_test",
     srcs = ["cpp/TestAbc.cc"],
@@ -11,8 +13,13 @@ cc_test(
         "//src/cut",
         "//src/dbSta",
         "//src/dbSta:dbReadVerilog",
+        "//src/odb",
+        "//src/sta:opensta_lib",
         "//src/tst",
+        "//src/utl",
+        "@edu_berkeley_abc//:abc-lib",
         "@googletest//:gtest",
         "@googletest//:gtest_main",
+        "@tk_tcl//:tcl",
     ],
 )

src/cut/test/cpp/TestAbc.cc

@@ -4,7 +4,6 @@
 // license that can be found in the LICENSE file or at
 // https://developers.google.com/open-source/licenses/bsd
 
-#include <tcl.h>
 #include <unistd.h>
 
 #include <array>
@@ -40,6 +39,7 @@
 #include "sta/Sta.hh"
 #include "sta/Units.hh"
 #include "sta/VerilogReader.hh"
+#include "tcl.h"
 #include "tst/fixture.h"
 #include "utl/Logger.h"
 #include "utl/deleter.h"