lib,src,test,doc: add node:ffi module

Makefile

@@ -542,6 +542,23 @@ else
 build-sqlite-tests:
 endif
 
+FFI_BINDING_GYPS := $(wildcard test/ffi/*/binding.gyp)
+
+FFI_BINDING_SOURCES := \
+	$(wildcard test/ffi/*/*.c)
+
+# Implicitly depends on $(NODE_EXE), see the build-ffi-tests rule for rationale.
+test/ffi/.buildstamp: $(ADDONS_PREREQS) \
+	$(FFI_BINDING_GYPS) $(FFI_BINDING_SOURCES)
+	@$(call run_build_addons,"$$PWD/test/ffi",$@)
+
+.PHONY: build-ffi-tests
+# .buildstamp needs $(NODE_EXE) but cannot depend on it
+# directly because it calls make recursively.  The parent make cannot know
+# if the subprocess touched anything so it pessimistically assumes that
+# .buildstamp is out of date and need a rebuild.
+build-ffi-tests: | $(NODE_EXE) test/ffi/.buildstamp ## Build FFI tests.
+
 .PHONY: clear-stalled
 clear-stalled: ## Clear any stalled processes.
 	$(info Clean up any leftover processes but don't error if found.)
@@ -552,7 +569,7 @@ clear-stalled: ## Clear any stalled processes.
 	fi
 
 .PHONY: test-build
-test-build: | all build-addons build-js-native-api-tests build-node-api-tests build-sqlite-tests ## Build all tests.
+test-build: | all build-addons build-js-native-api-tests build-node-api-tests build-sqlite-tests build-ffi-tests ## Build all tests.
 
 .PHONY: test-build-js-native-api
 test-build-js-native-api: all build-js-native-api-tests ## Build JS Native-API tests.
@@ -591,7 +608,7 @@ endif
 
 # Related CI job: node-test-commit-arm-fanned
 test-ci-native: LOGLEVEL := info ## Build and test addons without building anything else.
-test-ci-native: | benchmark/napi/.buildstamp test/addons/.buildstamp test/js-native-api/.buildstamp test/node-api/.buildstamp test/sqlite/.buildstamp
+test-ci-native: | benchmark/napi/.buildstamp test/addons/.buildstamp test/js-native-api/.buildstamp test/node-api/.buildstamp test/sqlite/.buildstamp test/ffi/.buildstamp
 	$(PYTHON) tools/test.py $(PARALLEL_ARGS) -p tap --logfile test.tap \
 		--mode=$(BUILDTYPE_LOWER) --flaky-tests=$(FLAKY_TESTS) \
 		$(TEST_CI_ARGS) $(CI_NATIVE_SUITES)
@@ -614,7 +631,7 @@ test-ci-js: | clear-stalled ## Build and test JavaScript with building anything
 .PHONY: test-ci
 # Related CI jobs: most CI tests, excluding node-test-commit-arm-fanned
 test-ci: LOGLEVEL := info ## Build and test everything (CI).
-test-ci: | clear-stalled bench-addons-build build-addons build-js-native-api-tests build-node-api-tests build-sqlite-tests doc-only
+test-ci: | clear-stalled bench-addons-build build-addons build-js-native-api-tests build-node-api-tests build-sqlite-tests build-ffi-tests doc-only
 	out/Release/cctest --gtest_output=xml:out/junit/cctest.xml
 	$(PYTHON) tools/test.py $(PARALLEL_ARGS) -p tap --logfile test.tap \
 		--mode=$(BUILDTYPE_LOWER) --flaky-tests=$(FLAKY_TESTS) \

configure.py

@@ -1017,6 +1017,12 @@
     default=None,
     help='build without SQLite (disables SQLite and Web Storage API)')
 
+parser.add_argument('--with-ffi',
+    action='store_true',
+    dest='with_ffi',
+    default=None,
+    help='build with FFI (Foreign Function Interface) support')
+
 parser.add_argument('--experimental-quic',
     action='store_true',
     dest='experimental_quic',
@@ -2182,6 +2188,12 @@ def without_sqlite_error(option):
 
   configure_library('sqlite', o, pkgname='sqlite3')
 
+def configure_ffi(o):
+  o['variables']['node_use_ffi'] = b(options.with_ffi)
+  return
+
+  configure_library('ffi', o, pkgname='libffi')
+
 def configure_quic(o):
   o['variables']['node_use_quic'] = b(options.experimental_quic and
                                       not options.without_ssl)
@@ -2635,6 +2647,7 @@ def make_bin_override():
 configure_library('ngtcp2', output, pkgname='libngtcp2')
 configure_lief(output);
 configure_sqlite(output);
+configure_ffi(output);
 configure_library('temporal_capi', output)
 configure_library('uvwasi', output)
 configure_library('zstd', output, pkgname='libzstd')