mm/kfence/Makefile - third_party/kernel - Git at Google

 # SPDX-License-Identifier: GPL-2.0

 obj-$(CONFIG_KFENCE) := core.o report.o

 CFLAGS_kfence_test.o := -g -fno-omit-frame-pointer -fno-optimize-sibling-calls
 obj-$(CONFIG_KFENCE_KUNIT_TEST) += kfence_test.o
	# SPDX-License-Identifier: GPL-2.0

	obj-$(CONFIG_KFENCE) := core.o report.o

	CFLAGS_kfence_test.o := -g -fno-omit-frame-pointer -fno-optimize-sibling-calls
	obj-$(CONFIG_KFENCE_KUNIT_TEST) += kfence_test.o