Makefile.kvm 14 KB

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  1. # SPDX-License-Identifier: GPL-2.0-only
  2. include ../../../build/Build.include
  3. all:
  4. LIBKVM += lib/assert.c
  5. LIBKVM += lib/elf.c
  6. LIBKVM += lib/guest_modes.c
  7. LIBKVM += lib/io.c
  8. LIBKVM += lib/kvm_util.c
  9. LIBKVM += lib/lru_gen_util.c
  10. LIBKVM += lib/memstress.c
  11. LIBKVM += lib/guest_sprintf.c
  12. LIBKVM += lib/rbtree.c
  13. LIBKVM += lib/sparsebit.c
  14. LIBKVM += lib/test_util.c
  15. LIBKVM += lib/ucall_common.c
  16. LIBKVM += lib/userfaultfd_util.c
  17. LIBKVM_STRING += lib/string_override.c
  18. LIBKVM_x86 += lib/x86/apic.c
  19. LIBKVM_x86 += lib/x86/handlers.S
  20. LIBKVM_x86 += lib/x86/hyperv.c
  21. LIBKVM_x86 += lib/x86/memstress.c
  22. LIBKVM_x86 += lib/x86/pmu.c
  23. LIBKVM_x86 += lib/x86/processor.c
  24. LIBKVM_x86 += lib/x86/sev.c
  25. LIBKVM_x86 += lib/x86/svm.c
  26. LIBKVM_x86 += lib/x86/ucall.c
  27. LIBKVM_x86 += lib/x86/vmx.c
  28. LIBKVM_arm64 += lib/arm64/gic.c
  29. LIBKVM_arm64 += lib/arm64/gic_v3.c
  30. LIBKVM_arm64 += lib/arm64/gic_v3_its.c
  31. LIBKVM_arm64 += lib/arm64/handlers.S
  32. LIBKVM_arm64 += lib/arm64/processor.c
  33. LIBKVM_arm64 += lib/arm64/spinlock.c
  34. LIBKVM_arm64 += lib/arm64/ucall.c
  35. LIBKVM_arm64 += lib/arm64/vgic.c
  36. LIBKVM_s390 += lib/s390/diag318_test_handler.c
  37. LIBKVM_s390 += lib/s390/processor.c
  38. LIBKVM_s390 += lib/s390/ucall.c
  39. LIBKVM_s390 += lib/s390/facility.c
  40. LIBKVM_riscv += lib/riscv/handlers.S
  41. LIBKVM_riscv += lib/riscv/processor.c
  42. LIBKVM_riscv += lib/riscv/ucall.c
  43. LIBKVM_loongarch += lib/loongarch/processor.c
  44. LIBKVM_loongarch += lib/loongarch/ucall.c
  45. LIBKVM_loongarch += lib/loongarch/exception.S
  46. # Non-compiled test targets
  47. TEST_PROGS_x86 += x86/nx_huge_pages_test.sh
  48. # Compiled test targets valid on all architectures with libkvm support
  49. TEST_GEN_PROGS_COMMON = demand_paging_test
  50. TEST_GEN_PROGS_COMMON += dirty_log_test
  51. TEST_GEN_PROGS_COMMON += guest_print_test
  52. TEST_GEN_PROGS_COMMON += irqfd_test
  53. TEST_GEN_PROGS_COMMON += kvm_binary_stats_test
  54. TEST_GEN_PROGS_COMMON += kvm_create_max_vcpus
  55. TEST_GEN_PROGS_COMMON += kvm_page_table_test
  56. TEST_GEN_PROGS_COMMON += set_memory_region_test
  57. # Compiled test targets
  58. TEST_GEN_PROGS_x86 = $(TEST_GEN_PROGS_COMMON)
  59. TEST_GEN_PROGS_x86 += x86/cpuid_test
  60. TEST_GEN_PROGS_x86 += x86/cr4_cpuid_sync_test
  61. TEST_GEN_PROGS_x86 += x86/dirty_log_page_splitting_test
  62. TEST_GEN_PROGS_x86 += x86/feature_msrs_test
  63. TEST_GEN_PROGS_x86 += x86/evmcs_smm_controls_test
  64. TEST_GEN_PROGS_x86 += x86/exit_on_emulation_failure_test
  65. TEST_GEN_PROGS_x86 += x86/fastops_test
  66. TEST_GEN_PROGS_x86 += x86/fix_hypercall_test
  67. TEST_GEN_PROGS_x86 += x86/hwcr_msr_test
  68. TEST_GEN_PROGS_x86 += x86/hyperv_clock
  69. TEST_GEN_PROGS_x86 += x86/hyperv_cpuid
  70. TEST_GEN_PROGS_x86 += x86/hyperv_evmcs
  71. TEST_GEN_PROGS_x86 += x86/hyperv_extended_hypercalls
  72. TEST_GEN_PROGS_x86 += x86/hyperv_features
  73. TEST_GEN_PROGS_x86 += x86/hyperv_ipi
  74. TEST_GEN_PROGS_x86 += x86/hyperv_svm_test
  75. TEST_GEN_PROGS_x86 += x86/hyperv_tlb_flush
  76. TEST_GEN_PROGS_x86 += x86/kvm_clock_test
  77. TEST_GEN_PROGS_x86 += x86/kvm_pv_test
  78. TEST_GEN_PROGS_x86 += x86/kvm_buslock_test
  79. TEST_GEN_PROGS_x86 += x86/monitor_mwait_test
  80. TEST_GEN_PROGS_x86 += x86/msrs_test
  81. TEST_GEN_PROGS_x86 += x86/nested_close_kvm_test
  82. TEST_GEN_PROGS_x86 += x86/nested_dirty_log_test
  83. TEST_GEN_PROGS_x86 += x86/nested_emulation_test
  84. TEST_GEN_PROGS_x86 += x86/nested_exceptions_test
  85. TEST_GEN_PROGS_x86 += x86/nested_invalid_cr3_test
  86. TEST_GEN_PROGS_x86 += x86/nested_set_state_test
  87. TEST_GEN_PROGS_x86 += x86/nested_tsc_adjust_test
  88. TEST_GEN_PROGS_x86 += x86/nested_tsc_scaling_test
  89. TEST_GEN_PROGS_x86 += x86/nested_vmsave_vmload_test
  90. TEST_GEN_PROGS_x86 += x86/platform_info_test
  91. TEST_GEN_PROGS_x86 += x86/pmu_counters_test
  92. TEST_GEN_PROGS_x86 += x86/pmu_event_filter_test
  93. TEST_GEN_PROGS_x86 += x86/private_mem_conversions_test
  94. TEST_GEN_PROGS_x86 += x86/private_mem_kvm_exits_test
  95. TEST_GEN_PROGS_x86 += x86/set_boot_cpu_id
  96. TEST_GEN_PROGS_x86 += x86/set_sregs_test
  97. TEST_GEN_PROGS_x86 += x86/smaller_maxphyaddr_emulation_test
  98. TEST_GEN_PROGS_x86 += x86/smm_test
  99. TEST_GEN_PROGS_x86 += x86/state_test
  100. TEST_GEN_PROGS_x86 += x86/vmx_preemption_timer_test
  101. TEST_GEN_PROGS_x86 += x86/svm_vmcall_test
  102. TEST_GEN_PROGS_x86 += x86/svm_int_ctl_test
  103. TEST_GEN_PROGS_x86 += x86/svm_nested_shutdown_test
  104. TEST_GEN_PROGS_x86 += x86/svm_nested_soft_inject_test
  105. TEST_GEN_PROGS_x86 += x86/tsc_scaling_sync
  106. TEST_GEN_PROGS_x86 += x86/sync_regs_test
  107. TEST_GEN_PROGS_x86 += x86/ucna_injection_test
  108. TEST_GEN_PROGS_x86 += x86/userspace_io_test
  109. TEST_GEN_PROGS_x86 += x86/userspace_msr_exit_test
  110. TEST_GEN_PROGS_x86 += x86/vmx_apic_access_test
  111. TEST_GEN_PROGS_x86 += x86/vmx_apicv_updates_test
  112. TEST_GEN_PROGS_x86 += x86/vmx_exception_with_invalid_guest_state
  113. TEST_GEN_PROGS_x86 += x86/vmx_msrs_test
  114. TEST_GEN_PROGS_x86 += x86/vmx_invalid_nested_guest_state
  115. TEST_GEN_PROGS_x86 += x86/vmx_nested_la57_state_test
  116. TEST_GEN_PROGS_x86 += x86/apic_bus_clock_test
  117. TEST_GEN_PROGS_x86 += x86/xapic_ipi_test
  118. TEST_GEN_PROGS_x86 += x86/xapic_state_test
  119. TEST_GEN_PROGS_x86 += x86/xapic_tpr_test
  120. TEST_GEN_PROGS_x86 += x86/xcr0_cpuid_test
  121. TEST_GEN_PROGS_x86 += x86/xss_msr_test
  122. TEST_GEN_PROGS_x86 += x86/debug_regs
  123. TEST_GEN_PROGS_x86 += x86/tsc_msrs_test
  124. TEST_GEN_PROGS_x86 += x86/vmx_pmu_caps_test
  125. TEST_GEN_PROGS_x86 += x86/xen_shinfo_test
  126. TEST_GEN_PROGS_x86 += x86/xen_vmcall_test
  127. TEST_GEN_PROGS_x86 += x86/sev_init2_tests
  128. TEST_GEN_PROGS_x86 += x86/sev_migrate_tests
  129. TEST_GEN_PROGS_x86 += x86/sev_smoke_test
  130. TEST_GEN_PROGS_x86 += x86/amx_test
  131. TEST_GEN_PROGS_x86 += x86/max_vcpuid_cap_test
  132. TEST_GEN_PROGS_x86 += x86/triple_fault_event_test
  133. TEST_GEN_PROGS_x86 += x86/recalc_apic_map_test
  134. TEST_GEN_PROGS_x86 += x86/aperfmperf_test
  135. TEST_GEN_PROGS_x86 += access_tracking_perf_test
  136. TEST_GEN_PROGS_x86 += coalesced_io_test
  137. TEST_GEN_PROGS_x86 += dirty_log_perf_test
  138. TEST_GEN_PROGS_x86 += guest_memfd_test
  139. TEST_GEN_PROGS_x86 += hardware_disable_test
  140. TEST_GEN_PROGS_x86 += memslot_modification_stress_test
  141. TEST_GEN_PROGS_x86 += memslot_perf_test
  142. TEST_GEN_PROGS_x86 += mmu_stress_test
  143. TEST_GEN_PROGS_x86 += rseq_test
  144. TEST_GEN_PROGS_x86 += steal_time
  145. TEST_GEN_PROGS_x86 += system_counter_offset_test
  146. TEST_GEN_PROGS_x86 += pre_fault_memory_test
  147. # Compiled outputs used by test targets
  148. TEST_GEN_PROGS_EXTENDED_x86 += x86/nx_huge_pages_test
  149. TEST_GEN_PROGS_arm64 = $(TEST_GEN_PROGS_COMMON)
  150. TEST_GEN_PROGS_arm64 += arm64/aarch32_id_regs
  151. TEST_GEN_PROGS_arm64 += arm64/arch_timer_edge_cases
  152. TEST_GEN_PROGS_arm64 += arm64/at
  153. TEST_GEN_PROGS_arm64 += arm64/debug-exceptions
  154. TEST_GEN_PROGS_arm64 += arm64/hello_el2
  155. TEST_GEN_PROGS_arm64 += arm64/host_sve
  156. TEST_GEN_PROGS_arm64 += arm64/hypercalls
  157. TEST_GEN_PROGS_arm64 += arm64/external_aborts
  158. TEST_GEN_PROGS_arm64 += arm64/page_fault_test
  159. TEST_GEN_PROGS_arm64 += arm64/psci_test
  160. TEST_GEN_PROGS_arm64 += arm64/sea_to_user
  161. TEST_GEN_PROGS_arm64 += arm64/set_id_regs
  162. TEST_GEN_PROGS_arm64 += arm64/smccc_filter
  163. TEST_GEN_PROGS_arm64 += arm64/vcpu_width_config
  164. TEST_GEN_PROGS_arm64 += arm64/vgic_init
  165. TEST_GEN_PROGS_arm64 += arm64/vgic_irq
  166. TEST_GEN_PROGS_arm64 += arm64/vgic_lpi_stress
  167. TEST_GEN_PROGS_arm64 += arm64/vpmu_counter_access
  168. TEST_GEN_PROGS_arm64 += arm64/no-vgic-v3
  169. TEST_GEN_PROGS_arm64 += arm64/idreg-idst
  170. TEST_GEN_PROGS_arm64 += arm64/kvm-uuid
  171. TEST_GEN_PROGS_arm64 += access_tracking_perf_test
  172. TEST_GEN_PROGS_arm64 += arch_timer
  173. TEST_GEN_PROGS_arm64 += coalesced_io_test
  174. TEST_GEN_PROGS_arm64 += dirty_log_perf_test
  175. TEST_GEN_PROGS_arm64 += get-reg-list
  176. TEST_GEN_PROGS_arm64 += guest_memfd_test
  177. TEST_GEN_PROGS_arm64 += memslot_modification_stress_test
  178. TEST_GEN_PROGS_arm64 += memslot_perf_test
  179. TEST_GEN_PROGS_arm64 += mmu_stress_test
  180. TEST_GEN_PROGS_arm64 += rseq_test
  181. TEST_GEN_PROGS_arm64 += steal_time
  182. TEST_GEN_PROGS_s390 = $(TEST_GEN_PROGS_COMMON)
  183. TEST_GEN_PROGS_s390 += s390/memop
  184. TEST_GEN_PROGS_s390 += s390/resets
  185. TEST_GEN_PROGS_s390 += s390/sync_regs_test
  186. TEST_GEN_PROGS_s390 += s390/tprot
  187. TEST_GEN_PROGS_s390 += s390/cmma_test
  188. TEST_GEN_PROGS_s390 += s390/debug_test
  189. TEST_GEN_PROGS_s390 += s390/cpumodel_subfuncs_test
  190. TEST_GEN_PROGS_s390 += s390/shared_zeropage_test
  191. TEST_GEN_PROGS_s390 += s390/ucontrol_test
  192. TEST_GEN_PROGS_s390 += s390/user_operexec
  193. TEST_GEN_PROGS_s390 += s390/keyop
  194. TEST_GEN_PROGS_s390 += rseq_test
  195. TEST_GEN_PROGS_s390 += s390/irq_routing
  196. TEST_GEN_PROGS_riscv = $(TEST_GEN_PROGS_COMMON)
  197. TEST_GEN_PROGS_riscv += riscv/sbi_pmu_test
  198. TEST_GEN_PROGS_riscv += riscv/ebreak_test
  199. TEST_GEN_PROGS_riscv += access_tracking_perf_test
  200. TEST_GEN_PROGS_riscv += arch_timer
  201. TEST_GEN_PROGS_riscv += coalesced_io_test
  202. TEST_GEN_PROGS_riscv += dirty_log_perf_test
  203. TEST_GEN_PROGS_riscv += get-reg-list
  204. TEST_GEN_PROGS_riscv += memslot_modification_stress_test
  205. TEST_GEN_PROGS_riscv += memslot_perf_test
  206. TEST_GEN_PROGS_riscv += mmu_stress_test
  207. TEST_GEN_PROGS_riscv += rseq_test
  208. TEST_GEN_PROGS_riscv += steal_time
  209. TEST_GEN_PROGS_loongarch = arch_timer
  210. TEST_GEN_PROGS_loongarch += coalesced_io_test
  211. TEST_GEN_PROGS_loongarch += demand_paging_test
  212. TEST_GEN_PROGS_loongarch += dirty_log_perf_test
  213. TEST_GEN_PROGS_loongarch += dirty_log_test
  214. TEST_GEN_PROGS_loongarch += guest_print_test
  215. TEST_GEN_PROGS_loongarch += hardware_disable_test
  216. TEST_GEN_PROGS_loongarch += kvm_binary_stats_test
  217. TEST_GEN_PROGS_loongarch += kvm_create_max_vcpus
  218. TEST_GEN_PROGS_loongarch += kvm_page_table_test
  219. TEST_GEN_PROGS_loongarch += memslot_modification_stress_test
  220. TEST_GEN_PROGS_loongarch += memslot_perf_test
  221. TEST_GEN_PROGS_loongarch += set_memory_region_test
  222. TEST_GEN_PROGS_loongarch += steal_time
  223. SPLIT_TESTS += arch_timer
  224. SPLIT_TESTS += get-reg-list
  225. TEST_PROGS += $(TEST_PROGS_$(ARCH))
  226. TEST_GEN_PROGS += $(TEST_GEN_PROGS_$(ARCH))
  227. TEST_GEN_PROGS_EXTENDED += $(TEST_GEN_PROGS_EXTENDED_$(ARCH))
  228. LIBKVM += $(LIBKVM_$(ARCH))
  229. OVERRIDE_TARGETS = 1
  230. # lib.mak defines $(OUTPUT), prepends $(OUTPUT)/ to $(TEST_GEN_PROGS), and most
  231. # importantly defines, i.e. overwrites, $(CC) (unless `make -e` or `make CC=`,
  232. # which causes the environment variable to override the makefile).
  233. include ../lib.mk
  234. include ../cgroup/lib/libcgroup.mk
  235. INSTALL_HDR_PATH = $(top_srcdir)/usr
  236. LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/
  237. LINUX_TOOL_INCLUDE = $(top_srcdir)/tools/include
  238. LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include
  239. CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \
  240. -Wno-gnu-variable-sized-type-not-at-end -MD -MP -DCONFIG_64BIT \
  241. -U_FORTIFY_SOURCE \
  242. -fno-builtin-memcmp -fno-builtin-memcpy \
  243. -fno-builtin-memset -fno-builtin-strnlen \
  244. -fno-stack-protector -fno-PIE -fno-strict-aliasing \
  245. -I$(LINUX_TOOL_INCLUDE) -I$(LINUX_TOOL_ARCH_INCLUDE) \
  246. -I$(LINUX_HDR_PATH) -Iinclude -I$(<D) -Iinclude/$(ARCH) \
  247. -I ../rseq -I.. $(EXTRA_CFLAGS) $(KHDR_INCLUDES)
  248. ifeq ($(ARCH),s390)
  249. CFLAGS += -march=z10
  250. endif
  251. ifeq ($(ARCH),x86)
  252. ifeq ($(shell echo "void foo(void) { }" | $(CC) -march=x86-64-v2 -x c - -c -o /dev/null 2>/dev/null; echo "$$?"),0)
  253. CFLAGS += -march=x86-64-v2
  254. endif
  255. endif
  256. ifeq ($(ARCH),arm64)
  257. tools_dir := $(top_srcdir)/tools
  258. arm64_tools_dir := $(tools_dir)/arch/arm64/tools/
  259. ifneq ($(abs_objdir),)
  260. arm64_hdr_outdir := $(abs_objdir)/tools/
  261. else
  262. arm64_hdr_outdir := $(tools_dir)/
  263. endif
  264. GEN_HDRS := $(arm64_hdr_outdir)arch/arm64/include/generated/
  265. CFLAGS += -I$(GEN_HDRS)
  266. $(GEN_HDRS): $(wildcard $(arm64_tools_dir)/*)
  267. $(MAKE) -C $(arm64_tools_dir) OUTPUT=$(arm64_hdr_outdir)
  268. endif
  269. no-pie-option := $(call try-run, echo 'int main(void) { return 0; }' | \
  270. $(CC) -Werror $(CFLAGS) -no-pie -x c - -o "$$TMP", -no-pie)
  271. # On s390, build the testcases KVM-enabled
  272. pgste-option = $(call try-run, echo 'int main(void) { return 0; }' | \
  273. $(CC) -Werror -Wl$(comma)--s390-pgste -x c - -o "$$TMP",-Wl$(comma)--s390-pgste)
  274. LDLIBS += -ldl
  275. LDFLAGS += -pthread $(no-pie-option) $(pgste-option)
  276. LIBKVM_C := $(filter %.c,$(LIBKVM))
  277. LIBKVM_S := $(filter %.S,$(LIBKVM))
  278. LIBKVM_C_OBJ := $(patsubst %.c, $(OUTPUT)/%.o, $(LIBKVM_C))
  279. LIBKVM_S_OBJ := $(patsubst %.S, $(OUTPUT)/%.o, $(LIBKVM_S))
  280. LIBKVM_STRING_OBJ := $(patsubst %.c, $(OUTPUT)/%.o, $(LIBKVM_STRING))
  281. LIBKVM_OBJS = $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ) $(LIBKVM_STRING_OBJ) $(LIBCGROUP_O)
  282. SPLIT_TEST_GEN_PROGS := $(patsubst %, $(OUTPUT)/%, $(SPLIT_TESTS))
  283. SPLIT_TEST_GEN_OBJ := $(patsubst %, $(OUTPUT)/$(ARCH)/%.o, $(SPLIT_TESTS))
  284. TEST_GEN_OBJ = $(patsubst %, %.o, $(TEST_GEN_PROGS))
  285. TEST_GEN_OBJ += $(patsubst %, %.o, $(TEST_GEN_PROGS_EXTENDED))
  286. TEST_DEP_FILES = $(patsubst %.o, %.d, $(TEST_GEN_OBJ))
  287. TEST_DEP_FILES += $(patsubst %.o, %.d, $(LIBKVM_OBJS))
  288. TEST_DEP_FILES += $(patsubst %.o, %.d, $(SPLIT_TEST_GEN_OBJ))
  289. -include $(TEST_DEP_FILES)
  290. $(shell mkdir -p $(sort $(OUTPUT)/$(ARCH) $(dir $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ))))
  291. $(filter-out $(SPLIT_TEST_GEN_PROGS), $(TEST_GEN_PROGS)) \
  292. $(TEST_GEN_PROGS_EXTENDED): %: %.o
  293. $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $< $(LIBKVM_OBJS) $(LDLIBS) -o $@
  294. $(TEST_GEN_OBJ): $(OUTPUT)/%.o: %.c
  295. $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
  296. $(SPLIT_TEST_GEN_PROGS): $(OUTPUT)/%: $(OUTPUT)/%.o $(OUTPUT)/$(ARCH)/%.o
  297. $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
  298. $(SPLIT_TEST_GEN_OBJ): $(OUTPUT)/$(ARCH)/%.o: $(ARCH)/%.c
  299. $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
  300. EXTRA_CLEAN += $(GEN_HDRS) \
  301. $(LIBKVM_OBJS) \
  302. $(SPLIT_TEST_GEN_OBJ) \
  303. $(TEST_DEP_FILES) \
  304. $(TEST_GEN_OBJ) \
  305. cscope.*
  306. $(LIBKVM_C_OBJ): $(OUTPUT)/%.o: %.c $(GEN_HDRS)
  307. $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
  308. $(LIBKVM_S_OBJ): $(OUTPUT)/%.o: %.S $(GEN_HDRS)
  309. $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
  310. # Compile the string overrides as freestanding to prevent the compiler from
  311. # generating self-referential code, e.g. without "freestanding" the compiler may
  312. # "optimize" memcmp() by invoking memcmp(), thus causing infinite recursion.
  313. $(LIBKVM_STRING_OBJ): $(OUTPUT)/%.o: %.c
  314. $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -ffreestanding $< -o $@
  315. $(shell mkdir -p $(sort $(dir $(TEST_GEN_PROGS))))
  316. $(SPLIT_TEST_GEN_OBJ): $(GEN_HDRS)
  317. $(TEST_GEN_PROGS): $(LIBKVM_OBJS)
  318. $(TEST_GEN_PROGS_EXTENDED): $(LIBKVM_OBJS)
  319. $(TEST_GEN_OBJ): $(GEN_HDRS)
  320. cscope: include_paths = $(LINUX_TOOL_INCLUDE) $(LINUX_HDR_PATH) include lib ..
  321. cscope:
  322. $(RM) cscope.*
  323. (find $(include_paths) -name '*.h' \
  324. -exec realpath --relative-base=$(PWD) {} \;; \
  325. find . -name '*.c' \
  326. -exec realpath --relative-base=$(PWD) {} \;) | sort -u > cscope.files
  327. cscope -b