1# SPDX-License-Identifier: GPL-2.0-only 2include ../../../build/Build.include 3 4all: 5 6LIBKVM += lib/assert.c 7LIBKVM += lib/elf.c 8LIBKVM += lib/guest_modes.c 9LIBKVM += lib/io.c 10LIBKVM += lib/kvm_util.c 11LIBKVM += lib/lru_gen_util.c 12LIBKVM += lib/memstress.c 13LIBKVM += lib/guest_sprintf.c 14LIBKVM += lib/proc_util.c 15LIBKVM += lib/rbtree.c 16LIBKVM += lib/sparsebit.c 17LIBKVM += lib/test_util.c 18LIBKVM += lib/ucall_common.c 19LIBKVM += lib/userfaultfd_util.c 20 21LIBKVM_STRING += lib/string_override.c 22 23LIBKVM_x86 += lib/x86/apic.c 24LIBKVM_x86 += lib/x86/handlers.S 25LIBKVM_x86 += lib/x86/hyperv.c 26LIBKVM_x86 += lib/x86/memstress.c 27LIBKVM_x86 += lib/x86/pmu.c 28LIBKVM_x86 += lib/x86/processor.c 29LIBKVM_x86 += lib/x86/sev.c 30LIBKVM_x86 += lib/x86/svm.c 31LIBKVM_x86 += lib/x86/ucall.c 32LIBKVM_x86 += lib/x86/vmx.c 33 34LIBKVM_arm64 += lib/arm64/gic.c 35LIBKVM_arm64 += lib/arm64/gic_v3.c 36LIBKVM_arm64 += lib/arm64/gic_v3_its.c 37LIBKVM_arm64 += lib/arm64/handlers.S 38LIBKVM_arm64 += lib/arm64/processor.c 39LIBKVM_arm64 += lib/arm64/spinlock.c 40LIBKVM_arm64 += lib/arm64/ucall.c 41LIBKVM_arm64 += lib/arm64/vgic.c 42 43LIBKVM_s390 += lib/s390/diag318_test_handler.c 44LIBKVM_s390 += lib/s390/processor.c 45LIBKVM_s390 += lib/s390/ucall.c 46LIBKVM_s390 += lib/s390/facility.c 47 48LIBKVM_riscv += lib/riscv/handlers.S 49LIBKVM_riscv += lib/riscv/processor.c 50LIBKVM_riscv += lib/riscv/ucall.c 51 52LIBKVM_loongarch += lib/loongarch/processor.c 53LIBKVM_loongarch += lib/loongarch/ucall.c 54LIBKVM_loongarch += lib/loongarch/exception.S 55 56# Non-compiled test targets 57TEST_PROGS_x86 += x86/nx_huge_pages_test.sh 58 59# Compiled test targets valid on all architectures with libkvm support 60TEST_GEN_PROGS_COMMON = demand_paging_test 61TEST_GEN_PROGS_COMMON += dirty_log_test 62TEST_GEN_PROGS_COMMON += guest_print_test 63TEST_GEN_PROGS_COMMON += irqfd_test 64TEST_GEN_PROGS_COMMON += kvm_binary_stats_test 65TEST_GEN_PROGS_COMMON += kvm_create_max_vcpus 66TEST_GEN_PROGS_COMMON += kvm_page_table_test 67TEST_GEN_PROGS_COMMON += set_memory_region_test 68TEST_GEN_PROGS_COMMON += memslot_modification_stress_test 69TEST_GEN_PROGS_COMMON += memslot_perf_test 70TEST_GEN_PROGS_COMMON += vm_types_test 71 72# Compiled test targets 73TEST_GEN_PROGS_x86 = $(TEST_GEN_PROGS_COMMON) 74TEST_GEN_PROGS_x86 += x86/cpuid_test 75TEST_GEN_PROGS_x86 += x86/cr4_cpuid_sync_test 76TEST_GEN_PROGS_x86 += x86/dirty_log_page_splitting_test 77TEST_GEN_PROGS_x86 += x86/feature_msrs_test 78TEST_GEN_PROGS_x86 += x86/evmcs_smm_controls_test 79TEST_GEN_PROGS_x86 += x86/exit_on_emulation_failure_test 80TEST_GEN_PROGS_x86 += x86/fastops_test 81TEST_GEN_PROGS_x86 += x86/fix_hypercall_test 82TEST_GEN_PROGS_x86 += x86/hwcr_msr_test 83TEST_GEN_PROGS_x86 += x86/hyperv_clock 84TEST_GEN_PROGS_x86 += x86/hyperv_cpuid 85TEST_GEN_PROGS_x86 += x86/hyperv_evmcs 86TEST_GEN_PROGS_x86 += x86/hyperv_extended_hypercalls 87TEST_GEN_PROGS_x86 += x86/hyperv_features 88TEST_GEN_PROGS_x86 += x86/hyperv_ipi 89TEST_GEN_PROGS_x86 += x86/hyperv_svm_test 90TEST_GEN_PROGS_x86 += x86/hyperv_tlb_flush 91TEST_GEN_PROGS_x86 += x86/kvm_clock_test 92TEST_GEN_PROGS_x86 += x86/kvm_pv_test 93TEST_GEN_PROGS_x86 += x86/kvm_buslock_test 94TEST_GEN_PROGS_x86 += x86/monitor_mwait_test 95TEST_GEN_PROGS_x86 += x86/msrs_test 96TEST_GEN_PROGS_x86 += x86/nested_close_kvm_test 97TEST_GEN_PROGS_x86 += x86/nested_dirty_log_test 98TEST_GEN_PROGS_x86 += x86/nested_emulation_test 99TEST_GEN_PROGS_x86 += x86/nested_exceptions_test 100TEST_GEN_PROGS_x86 += x86/nested_invalid_cr3_test 101TEST_GEN_PROGS_x86 += x86/nested_set_state_test 102TEST_GEN_PROGS_x86 += x86/nested_tdp_fault_test 103TEST_GEN_PROGS_x86 += x86/nested_tsc_adjust_test 104TEST_GEN_PROGS_x86 += x86/nested_tsc_scaling_test 105TEST_GEN_PROGS_x86 += x86/nested_vmsave_vmload_test 106TEST_GEN_PROGS_x86 += x86/platform_info_test 107TEST_GEN_PROGS_x86 += x86/pmu_counters_test 108TEST_GEN_PROGS_x86 += x86/pmu_event_filter_test 109TEST_GEN_PROGS_x86 += x86/private_mem_conversions_test 110TEST_GEN_PROGS_x86 += x86/private_mem_kvm_exits_test 111TEST_GEN_PROGS_x86 += x86/save_restore_pf_stress_test 112TEST_GEN_PROGS_x86 += x86/set_boot_cpu_id 113TEST_GEN_PROGS_x86 += x86/set_sregs_test 114TEST_GEN_PROGS_x86 += x86/smaller_maxphyaddr_emulation_test 115TEST_GEN_PROGS_x86 += x86/smm_test 116TEST_GEN_PROGS_x86 += x86/state_test 117TEST_GEN_PROGS_x86 += x86/vmx_preemption_timer_test 118TEST_GEN_PROGS_x86 += x86/svm_vmcall_test 119TEST_GEN_PROGS_x86 += x86/svm_int_ctl_test 120TEST_GEN_PROGS_x86 += x86/svm_nested_clear_efer_svme 121TEST_GEN_PROGS_x86 += x86/svm_nested_shutdown_test 122TEST_GEN_PROGS_x86 += x86/svm_nested_soft_inject_test 123TEST_GEN_PROGS_x86 += x86/svm_nested_vmcb12_gpa 124TEST_GEN_PROGS_x86 += x86/svm_nested_pat_test 125TEST_GEN_PROGS_x86 += x86/svm_lbr_nested_state 126TEST_GEN_PROGS_x86 += x86/svm_pmu_host_guest_test 127TEST_GEN_PROGS_x86 += x86/tsc_scaling_sync 128TEST_GEN_PROGS_x86 += x86/sync_regs_test 129TEST_GEN_PROGS_x86 += x86/ucna_injection_test 130TEST_GEN_PROGS_x86 += x86/userspace_io_test 131TEST_GEN_PROGS_x86 += x86/userspace_msr_exit_test 132TEST_GEN_PROGS_x86 += x86/vmx_apic_access_test 133TEST_GEN_PROGS_x86 += x86/vmx_apicv_updates_test 134TEST_GEN_PROGS_x86 += x86/vmx_exception_with_invalid_guest_state 135TEST_GEN_PROGS_x86 += x86/vmx_msrs_test 136TEST_GEN_PROGS_x86 += x86/vmx_invalid_nested_guest_state 137TEST_GEN_PROGS_x86 += x86/vmx_nested_la57_state_test 138TEST_GEN_PROGS_x86 += x86/apic_bus_clock_test 139TEST_GEN_PROGS_x86 += x86/xapic_ipi_test 140TEST_GEN_PROGS_x86 += x86/xapic_state_test 141TEST_GEN_PROGS_x86 += x86/xapic_tpr_test 142TEST_GEN_PROGS_x86 += x86/xcr0_cpuid_test 143TEST_GEN_PROGS_x86 += x86/xss_msr_test 144TEST_GEN_PROGS_x86 += x86/debug_regs 145TEST_GEN_PROGS_x86 += x86/tsc_msrs_test 146TEST_GEN_PROGS_x86 += x86/vmx_pmu_caps_test 147TEST_GEN_PROGS_x86 += x86/xen_shinfo_test 148TEST_GEN_PROGS_x86 += x86/xen_vmcall_test 149TEST_GEN_PROGS_x86 += x86/sev_dbg_test 150TEST_GEN_PROGS_x86 += x86/sev_init2_tests 151TEST_GEN_PROGS_x86 += x86/sev_migrate_tests 152TEST_GEN_PROGS_x86 += x86/sev_smoke_test 153TEST_GEN_PROGS_x86 += x86/amx_test 154TEST_GEN_PROGS_x86 += x86/max_vcpuid_cap_test 155TEST_GEN_PROGS_x86 += x86/triple_fault_event_test 156TEST_GEN_PROGS_x86 += x86/recalc_apic_map_test 157TEST_GEN_PROGS_x86 += x86/aperfmperf_test 158TEST_GEN_PROGS_x86 += access_tracking_perf_test 159TEST_GEN_PROGS_x86 += coalesced_io_test 160TEST_GEN_PROGS_x86 += dirty_log_perf_test 161TEST_GEN_PROGS_x86 += guest_memfd_test 162TEST_GEN_PROGS_x86 += hardware_disable_test 163TEST_GEN_PROGS_x86 += irq_test 164TEST_GEN_PROGS_x86 += mmu_stress_test 165TEST_GEN_PROGS_x86 += rseq_test 166TEST_GEN_PROGS_x86 += steal_time 167TEST_GEN_PROGS_x86 += system_counter_offset_test 168TEST_GEN_PROGS_x86 += pre_fault_memory_test 169 170# Compiled outputs used by test targets 171TEST_GEN_PROGS_EXTENDED_x86 += x86/nx_huge_pages_test 172 173TEST_GEN_PROGS_arm64 = $(TEST_GEN_PROGS_COMMON) 174TEST_GEN_PROGS_arm64 += arm64/aarch32_id_regs 175TEST_GEN_PROGS_arm64 += arm64/arch_timer_edge_cases 176TEST_GEN_PROGS_arm64 += arm64/at 177TEST_GEN_PROGS_arm64 += arm64/debug-exceptions 178TEST_GEN_PROGS_arm64 += arm64/hello_el2 179TEST_GEN_PROGS_arm64 += arm64/host_sve 180TEST_GEN_PROGS_arm64 += arm64/hypercalls 181TEST_GEN_PROGS_arm64 += arm64/external_aborts 182TEST_GEN_PROGS_arm64 += arm64/mmio_sign_ext 183TEST_GEN_PROGS_arm64 += arm64/page_fault_test 184TEST_GEN_PROGS_arm64 += arm64/psci_test 185TEST_GEN_PROGS_arm64 += arm64/sea_to_user 186TEST_GEN_PROGS_arm64 += arm64/set_id_regs 187TEST_GEN_PROGS_arm64 += arm64/smccc_filter 188TEST_GEN_PROGS_arm64 += arm64/stage2_block_transitions 189TEST_GEN_PROGS_arm64 += arm64/vcpu_width_config 190TEST_GEN_PROGS_arm64 += arm64/vgic_init 191TEST_GEN_PROGS_arm64 += arm64/vgic_irq 192TEST_GEN_PROGS_arm64 += arm64/vgic_its_save 193TEST_GEN_PROGS_arm64 += arm64/vgic_lpi_stress 194TEST_GEN_PROGS_arm64 += arm64/vgic_v5 195TEST_GEN_PROGS_arm64 += arm64/vpmu_counter_access 196TEST_GEN_PROGS_arm64 += arm64/no-vgic 197TEST_GEN_PROGS_arm64 += arm64/idreg-idst 198TEST_GEN_PROGS_arm64 += arm64/kvm-uuid 199TEST_GEN_PROGS_arm64 += access_tracking_perf_test 200TEST_GEN_PROGS_arm64 += arch_timer 201TEST_GEN_PROGS_arm64 += coalesced_io_test 202TEST_GEN_PROGS_arm64 += dirty_log_perf_test 203TEST_GEN_PROGS_arm64 += get-reg-list 204TEST_GEN_PROGS_arm64 += guest_memfd_test 205TEST_GEN_PROGS_arm64 += mmu_stress_test 206TEST_GEN_PROGS_arm64 += rseq_test 207TEST_GEN_PROGS_arm64 += steal_time 208 209TEST_GEN_PROGS_s390 = $(TEST_GEN_PROGS_COMMON) 210TEST_GEN_PROGS_s390 += s390/memop 211TEST_GEN_PROGS_s390 += s390/resets 212TEST_GEN_PROGS_s390 += s390/sync_regs_test 213TEST_GEN_PROGS_s390 += s390/tprot 214TEST_GEN_PROGS_s390 += s390/cmma_test 215TEST_GEN_PROGS_s390 += s390/debug_test 216TEST_GEN_PROGS_s390 += s390/cpumodel_subfuncs_test 217TEST_GEN_PROGS_s390 += s390/shared_zeropage_test 218TEST_GEN_PROGS_s390 += s390/ucontrol_test 219TEST_GEN_PROGS_s390 += s390/user_operexec 220TEST_GEN_PROGS_s390 += s390/keyop 221TEST_GEN_PROGS_s390 += rseq_test 222TEST_GEN_PROGS_s390 += s390/irq_routing 223TEST_GEN_PROGS_s390 += mmu_stress_test 224TEST_GEN_PROGS_s390 += pre_fault_memory_test 225 226TEST_GEN_PROGS_riscv = $(TEST_GEN_PROGS_COMMON) 227TEST_GEN_PROGS_riscv += riscv/sbi_pmu_test 228TEST_GEN_PROGS_riscv += riscv/ebreak_test 229TEST_GEN_PROGS_riscv += access_tracking_perf_test 230TEST_GEN_PROGS_riscv += arch_timer 231TEST_GEN_PROGS_riscv += coalesced_io_test 232TEST_GEN_PROGS_riscv += dirty_log_perf_test 233TEST_GEN_PROGS_riscv += get-reg-list 234TEST_GEN_PROGS_riscv += mmu_stress_test 235TEST_GEN_PROGS_riscv += rseq_test 236TEST_GEN_PROGS_riscv += steal_time 237 238TEST_GEN_PROGS_loongarch = loongarch/fpu_test 239TEST_GEN_PROGS_loongarch += loongarch/pmu_test 240TEST_GEN_PROGS_loongarch += arch_timer 241TEST_GEN_PROGS_loongarch += coalesced_io_test 242TEST_GEN_PROGS_loongarch += demand_paging_test 243TEST_GEN_PROGS_loongarch += dirty_log_perf_test 244TEST_GEN_PROGS_loongarch += dirty_log_test 245TEST_GEN_PROGS_loongarch += guest_print_test 246TEST_GEN_PROGS_loongarch += hardware_disable_test 247TEST_GEN_PROGS_loongarch += kvm_binary_stats_test 248TEST_GEN_PROGS_loongarch += kvm_create_max_vcpus 249TEST_GEN_PROGS_loongarch += kvm_page_table_test 250TEST_GEN_PROGS_loongarch += memslot_modification_stress_test 251TEST_GEN_PROGS_loongarch += memslot_perf_test 252TEST_GEN_PROGS_loongarch += set_memory_region_test 253TEST_GEN_PROGS_loongarch += steal_time 254 255SPLIT_TESTS += arch_timer 256SPLIT_TESTS += get-reg-list 257 258TEST_PROGS += $(TEST_PROGS_$(ARCH)) 259TEST_GEN_PROGS += $(TEST_GEN_PROGS_$(ARCH)) 260TEST_GEN_PROGS_EXTENDED += $(TEST_GEN_PROGS_EXTENDED_$(ARCH)) 261LIBKVM += $(LIBKVM_$(ARCH)) 262 263OVERRIDE_TARGETS = 1 264 265# lib.mak defines $(OUTPUT), prepends $(OUTPUT)/ to $(TEST_GEN_PROGS), and most 266# importantly defines, i.e. overwrites, $(CC) (unless `make -e` or `make CC=`, 267# which causes the environment variable to override the makefile). 268include ../lib.mk 269include ../cgroup/lib/libcgroup.mk 270 271ifeq ($(ARCH),x86) 272include ../vfio/lib/libvfio.mk 273endif 274 275INSTALL_HDR_PATH = $(top_srcdir)/usr 276LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/ 277LINUX_TOOL_INCLUDE = $(top_srcdir)/tools/include 278LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include 279CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \ 280 -Wno-gnu-variable-sized-type-not-at-end -MD -MP -DCONFIG_64BIT \ 281 -U_FORTIFY_SOURCE \ 282 -fno-builtin-memcmp -fno-builtin-memcpy \ 283 -fno-builtin-memset -fno-builtin-strnlen \ 284 -fno-stack-protector -fno-PIE -fno-strict-aliasing \ 285 -I$(LINUX_TOOL_INCLUDE) -I$(LINUX_TOOL_ARCH_INCLUDE) \ 286 -I$(LINUX_HDR_PATH) -Iinclude -I$(<D) -Iinclude/$(ARCH) \ 287 -I ../rseq -I.. $(EXTRA_CFLAGS) $(KHDR_INCLUDES) 288ifeq ($(ARCH),s390) 289 CFLAGS += -march=z10 290endif 291ifeq ($(ARCH),x86) 292ifeq ($(shell echo "void foo(void) { }" | $(CC) -march=x86-64-v2 -x c - -c -o /dev/null 2>/dev/null; echo "$$?"),0) 293 CFLAGS += -march=x86-64-v2 294endif 295endif 296ifeq ($(ARCH),arm64) 297tools_dir := $(top_srcdir)/tools 298arm64_tools_dir := $(tools_dir)/arch/arm64/tools/ 299 300ifneq ($(abs_objdir),) 301arm64_hdr_outdir := $(abs_objdir)/tools/ 302else 303arm64_hdr_outdir := $(tools_dir)/ 304endif 305 306GEN_HDRS := $(arm64_hdr_outdir)arch/arm64/include/generated/ 307CFLAGS += -I$(GEN_HDRS) 308 309$(GEN_HDRS): $(wildcard $(arm64_tools_dir)/*) 310 $(MAKE) -C $(arm64_tools_dir) OUTPUT=$(arm64_hdr_outdir) 311endif 312 313no-pie-option := $(call try-run, echo 'int main(void) { return 0; }' | \ 314 $(CC) -Werror $(CFLAGS) -no-pie -x c - -o "$$TMP", -no-pie) 315 316# On s390, build the testcases KVM-enabled 317pgste-option = $(call try-run, echo 'int main(void) { return 0; }' | \ 318 $(CC) -Werror -Wl$(comma)--s390-pgste -x c - -o "$$TMP",-Wl$(comma)--s390-pgste) 319 320LDLIBS += -ldl 321LDFLAGS += -pthread $(no-pie-option) $(pgste-option) 322 323LIBKVM_C := $(filter %.c,$(LIBKVM)) 324LIBKVM_S := $(filter %.S,$(LIBKVM)) 325LIBKVM_C_OBJ := $(patsubst %.c, $(OUTPUT)/%.o, $(LIBKVM_C)) 326LIBKVM_S_OBJ := $(patsubst %.S, $(OUTPUT)/%.o, $(LIBKVM_S)) 327LIBKVM_STRING_OBJ := $(patsubst %.c, $(OUTPUT)/%.o, $(LIBKVM_STRING)) 328LIBKVM_OBJS = $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ) $(LIBKVM_STRING_OBJ) 329LIBKVM_OBJS += $(LIBCGROUP_O) 330ifeq ($(ARCH),x86) 331LIBKVM_OBJS += $(LIBVFIO_O) 332endif 333SPLIT_TEST_GEN_PROGS := $(patsubst %, $(OUTPUT)/%, $(SPLIT_TESTS)) 334SPLIT_TEST_GEN_OBJ := $(patsubst %, $(OUTPUT)/$(ARCH)/%.o, $(SPLIT_TESTS)) 335 336TEST_GEN_OBJ = $(patsubst %, %.o, $(TEST_GEN_PROGS)) 337TEST_GEN_OBJ += $(patsubst %, %.o, $(TEST_GEN_PROGS_EXTENDED)) 338TEST_DEP_FILES = $(patsubst %.o, %.d, $(TEST_GEN_OBJ)) 339TEST_DEP_FILES += $(patsubst %.o, %.d, $(LIBKVM_OBJS)) 340TEST_DEP_FILES += $(patsubst %.o, %.d, $(SPLIT_TEST_GEN_OBJ)) 341-include $(TEST_DEP_FILES) 342 343$(shell mkdir -p $(sort $(OUTPUT)/$(ARCH) $(dir $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ)))) 344 345$(filter-out $(SPLIT_TEST_GEN_PROGS), $(TEST_GEN_PROGS)) \ 346$(TEST_GEN_PROGS_EXTENDED): %: %.o 347 $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $< $(LIBKVM_OBJS) $(LDLIBS) -o $@ 348$(TEST_GEN_OBJ): $(OUTPUT)/%.o: %.c 349 $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@ 350 351$(SPLIT_TEST_GEN_PROGS): $(OUTPUT)/%: $(OUTPUT)/%.o $(OUTPUT)/$(ARCH)/%.o 352 $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@ 353$(SPLIT_TEST_GEN_OBJ): $(OUTPUT)/$(ARCH)/%.o: $(ARCH)/%.c 354 $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@ 355 356EXTRA_CLEAN += $(GEN_HDRS) \ 357 $(LIBKVM_OBJS) \ 358 $(SPLIT_TEST_GEN_OBJ) \ 359 $(TEST_DEP_FILES) \ 360 $(TEST_GEN_OBJ) \ 361 cscope.* 362 363$(LIBKVM_C_OBJ): $(OUTPUT)/%.o: %.c $(GEN_HDRS) 364 $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@ 365 366$(LIBKVM_S_OBJ): $(OUTPUT)/%.o: %.S $(GEN_HDRS) 367 $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@ 368 369# Compile the string overrides as freestanding to prevent the compiler from 370# generating self-referential code, e.g. without "freestanding" the compiler may 371# "optimize" memcmp() by invoking memcmp(), thus causing infinite recursion. 372$(LIBKVM_STRING_OBJ): $(OUTPUT)/%.o: %.c 373 $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -ffreestanding $< -o $@ 374 375$(shell mkdir -p $(sort $(dir $(TEST_GEN_PROGS)))) 376$(SPLIT_TEST_GEN_OBJ): $(GEN_HDRS) 377$(TEST_GEN_PROGS): $(LIBKVM_OBJS) 378$(TEST_GEN_PROGS_EXTENDED): $(LIBKVM_OBJS) 379$(TEST_GEN_OBJ): $(GEN_HDRS) 380 381cscope: include_paths = $(LINUX_TOOL_INCLUDE) $(LINUX_HDR_PATH) include lib .. 382cscope: 383 $(RM) cscope.* 384 (find $(include_paths) -name '*.h' \ 385 -exec realpath --relative-base=$(PWD) {} \;; \ 386 find . -name '*.c' \ 387 -exec realpath --relative-base=$(PWD) {} \;) | sort -u > cscope.files 388 cscope -b 389