radix tree test suite: Enable ubsan

# SPDX-License-Identifier: GPL-2.0

CFLAGS += -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address

LDFLAGS += -fsanitize=address

CFLAGS += -I. -I../../include -g -Og -Wall -D_LGPL_SOURCE -fsanitize=address \

	  -fsanitize=undefined

LDFLAGS += -fsanitize=address -fsanitize=undefined

LDLIBS+= -lpthread -lurcu

TARGETS = main idr-test multiorder

CORE_OFILES := radix-tree.o idr.o linux.o test.o find_bit.o

		item_check_present(&tree, middle + idx);

	item_check_absent(&tree, middle + up);

	item_gang_check_present(&tree, middle - down,

			up + down, chunk, hop);

	if (chunk > 0) {

		item_gang_check_present(&tree, middle - down, up + down,

				chunk, hop);

		item_full_scan(&tree, middle - down, down + up, chunk);

	}

	item_kill_tree(&tree);

}

void gang_check(void)

{

	__gang_check(1 << 30, 128, 128, 35, 2);

	__gang_check(1 << 31, 128, 128, 32, 32);

	__gang_check(1 << 31, 128, 128, 32, 100);

	__gang_check(1 << 31, 128, 128, 17, 7);

	__gang_check(0xffff0000, 0, 65536, 17, 7);

	__gang_check(0xfffffffe, 1, 1, 17, 7);

	__gang_check(1UL << 30, 128, 128, 35, 2);

	__gang_check(1UL << 31, 128, 128, 32, 32);

	__gang_check(1UL << 31, 128, 128, 32, 100);

	__gang_check(1UL << 31, 128, 128, 17, 7);

	__gang_check(0xffff0000UL, 0, 65536, 17, 7);

	__gang_check(0xfffffffeUL, 1, 1, 17, 7);

}

void __big_gang_check(void)