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v5.4
   1# SPDX-License-Identifier: GPL-2.0-only
   2
   3ifeq ($(src-perf),)
   4src-perf := $(srctree)/tools/perf
   5endif
   6
   7ifeq ($(obj-perf),)
   8obj-perf := $(OUTPUT)
   9endif
  10
  11ifneq ($(obj-perf),)
  12obj-perf := $(abspath $(obj-perf))/
  13endif
  14
  15$(shell printf "" > $(OUTPUT).config-detected)
  16detected     = $(shell echo "$(1)=y"       >> $(OUTPUT).config-detected)
  17detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
  18
  19CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
  20
  21include $(srctree)/tools/scripts/Makefile.arch
  22
  23$(call detected_var,SRCARCH)
  24
  25NO_PERF_REGS := 1
  26NO_SYSCALL_TABLE := 1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  27
  28# Additional ARCH settings for ppc
  29ifeq ($(SRCARCH),powerpc)
  30  NO_PERF_REGS := 0
  31  NO_SYSCALL_TABLE := 0
  32  CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
  33  LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
  34endif
  35
  36# Additional ARCH settings for x86
  37ifeq ($(SRCARCH),x86)
  38  $(call detected,CONFIG_X86)
  39  ifeq (${IS_64_BIT}, 1)
  40    NO_SYSCALL_TABLE := 0
  41    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
  42    ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
  43    LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
  44    $(call detected,CONFIG_X86_64)
  45  else
  46    LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
  47  endif
  48  NO_PERF_REGS := 0
  49endif
  50
  51ifeq ($(SRCARCH),arm)
  52  NO_PERF_REGS := 0
  53  LIBUNWIND_LIBS = -lunwind -lunwind-arm
  54endif
  55
  56ifeq ($(SRCARCH),arm64)
  57  NO_PERF_REGS := 0
  58  NO_SYSCALL_TABLE := 0
  59  CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
  60  LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
  61endif
  62
  63ifeq ($(SRCARCH),riscv)
  64  NO_PERF_REGS := 0
  65endif
  66
  67ifeq ($(SRCARCH),csky)
  68  NO_PERF_REGS := 0
  69endif
  70
  71ifeq ($(ARCH),s390)
  72  NO_PERF_REGS := 0
  73  NO_SYSCALL_TABLE := 0
  74  CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
  75endif
  76
  77ifeq ($(NO_PERF_REGS),0)
  78  $(call detected,CONFIG_PERF_REGS)
  79endif
  80
  81ifneq ($(NO_SYSCALL_TABLE),1)
  82  CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
  83endif
  84
  85# So far there's only x86 and arm libdw unwind support merged in perf.
  86# Disable it on all other architectures in case libdw unwind
  87# support is detected in system. Add supported architectures
  88# to the check.
  89ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv))
  90  NO_LIBDW_DWARF_UNWIND := 1
  91endif
  92
  93ifeq ($(LIBUNWIND_LIBS),)
  94  NO_LIBUNWIND := 1
  95endif
  96#
  97# For linking with debug library, run like:
  98#
  99#   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
 100#
 101
 102libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
 103define libunwind_arch_set_flags_code
 104  FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
 105  FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
 106endef
 107
 108ifdef LIBUNWIND_DIR
 109  LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
 110  LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
 111  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
 112  $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
 113endif
 114
 115# Set per-feature check compilation flags
 116FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
 117FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
 118FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
 119FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
 120
 121FEATURE_CHECK_LDFLAGS-libunwind-arm = -lunwind -lunwind-arm
 122FEATURE_CHECK_LDFLAGS-libunwind-aarch64 = -lunwind -lunwind-aarch64
 123FEATURE_CHECK_LDFLAGS-libunwind-x86 = -lunwind -llzma -lunwind-x86
 124FEATURE_CHECK_LDFLAGS-libunwind-x86_64 = -lunwind -llzma -lunwind-x86_64
 125
 126FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
 127
 128ifdef CSINCLUDES
 129  LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
 130endif
 131OPENCSDLIBS := -lopencsd_c_api -lopencsd
 132ifdef CSLIBS
 133  LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
 134endif
 135FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
 136FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
 137
 138ifeq ($(NO_PERF_REGS),0)
 139  CFLAGS += -DHAVE_PERF_REGS_SUPPORT
 140endif
 141
 142# for linking with debug library, run like:
 143# make DEBUG=1 LIBDW_DIR=/opt/libdw/
 144ifdef LIBDW_DIR
 145  LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
 146  LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
 147endif
 148DWARFLIBS := -ldw
 149ifeq ($(findstring -static,${LDFLAGS}),-static)
 150  DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
 151endif
 152FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
 153FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
 154
 155# for linking with debug library, run like:
 156# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
 157ifdef LIBBABELTRACE_DIR
 158  LIBBABELTRACE_CFLAGS  := -I$(LIBBABELTRACE_DIR)/include
 159  LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
 160endif
 161FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
 162FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
 163
 164ifdef LIBZSTD_DIR
 165  LIBZSTD_CFLAGS  := -I$(LIBZSTD_DIR)/lib
 166  LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
 167endif
 168FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
 169FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
 170
 171FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
 172# include ARCH specific config
 173-include $(src-perf)/arch/$(SRCARCH)/Makefile
 174
 175ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 176  CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 177endif
 178
 179include $(srctree)/tools/scripts/utilities.mak
 180
 181ifeq ($(call get-executable,$(FLEX)),)
 182  dummy := $(error Error: $(FLEX) is missing on this system, please install it)
 183endif
 184
 185ifeq ($(call get-executable,$(BISON)),)
 186  dummy := $(error Error: $(BISON) is missing on this system, please install it)
 187endif
 188
 189# Treat warnings as errors unless directed not to
 190ifneq ($(WERROR),0)
 191  CFLAGS += -Werror
 192  CXXFLAGS += -Werror
 193endif
 194
 195ifndef DEBUG
 196  DEBUG := 0
 197endif
 198
 199ifeq ($(DEBUG),0)
 200ifeq ($(CC_NO_CLANG), 0)
 201  CFLAGS += -O3
 202else
 203  CFLAGS += -O6
 204endif
 205endif
 206
 207ifdef PARSER_DEBUG
 208  PARSER_DEBUG_BISON := -t
 209  PARSER_DEBUG_FLEX  := -d
 210  CFLAGS             += -DPARSER_DEBUG
 211  $(call detected_var,PARSER_DEBUG_BISON)
 212  $(call detected_var,PARSER_DEBUG_FLEX)
 213endif
 214
 215# Try different combinations to accommodate systems that only have
 216# python[2][-config] in weird combinations but always preferring
 217# python2 and python2-config as per pep-0394. If we catch a
 218# python[-config] in version 3, the version check will kill it.
 219PYTHON2 := $(if $(call get-executable,python2),python2,python)
 220override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2))
 221PYTHON2_CONFIG := \
 222  $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
 223override PYTHON_CONFIG := \
 224  $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG))
 225
 226grep-libs  = $(filter -l%,$(1))
 227strip-libs  = $(filter-out -l%,$(1))
 228
 229PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
 230
 
 
 
 
 
 
 
 
 
 231ifdef PYTHON_CONFIG
 232  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
 233  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
 234  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
 235  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
 236  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
 237endif
 238
 239FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
 240FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
 241FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
 242FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
 243
 244FEATURE_CHECK_LDFLAGS-libaio = -lrt
 245
 246FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
 247
 248CFLAGS += -fno-omit-frame-pointer
 249CFLAGS += -ggdb3
 250CFLAGS += -funwind-tables
 251CFLAGS += -Wall
 252CFLAGS += -Wextra
 253CFLAGS += -std=gnu99
 254
 255CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
 256CXXFLAGS += -Wall
 257CXXFLAGS += -fno-omit-frame-pointer
 258CXXFLAGS += -ggdb3
 259CXXFLAGS += -funwind-tables
 260CXXFLAGS += -Wno-strict-aliasing
 261
 262# Enforce a non-executable stack, as we may regress (again) in the future by
 263# adding assembler files missing the .GNU-stack linker note.
 264LDFLAGS += -Wl,-z,noexecstack
 265
 266EXTLIBS = -lpthread -lrt -lm -ldl
 267
 
 
 
 
 
 268ifeq ($(FEATURES_DUMP),)
 269include $(srctree)/tools/build/Makefile.feature
 270else
 271include $(FEATURES_DUMP)
 272endif
 273
 274ifeq ($(feature-stackprotector-all), 1)
 275  CFLAGS += -fstack-protector-all
 276endif
 277
 278ifeq ($(DEBUG),0)
 279  ifeq ($(feature-fortify-source), 1)
 280    CFLAGS += -D_FORTIFY_SOURCE=2
 281  endif
 282endif
 283
 284INC_FLAGS += -I$(src-perf)/lib/include
 285INC_FLAGS += -I$(src-perf)/util/include
 286INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
 287INC_FLAGS += -I$(srctree)/tools/include/
 288INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
 289INC_FLAGS += -I$(srctree)/tools/include/uapi
 290INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
 291INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
 292
 293# $(obj-perf)      for generated common-cmds.h
 294# $(obj-perf)/util for generated bison/flex headers
 295ifneq ($(OUTPUT),)
 296INC_FLAGS += -I$(obj-perf)/util
 297INC_FLAGS += -I$(obj-perf)
 298endif
 299
 300INC_FLAGS += -I$(src-perf)/util
 301INC_FLAGS += -I$(src-perf)
 302INC_FLAGS += -I$(srctree)/tools/lib/
 303
 304CFLAGS   += $(INC_FLAGS)
 
 
 305CXXFLAGS += $(INC_FLAGS)
 306
 307CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 308
 309ifeq ($(feature-sync-compare-and-swap), 1)
 310  CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
 311endif
 312
 313ifeq ($(feature-pthread-attr-setaffinity-np), 1)
 314  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
 315endif
 316
 317ifeq ($(feature-pthread-barrier), 1)
 318  CFLAGS += -DHAVE_PTHREAD_BARRIER
 319endif
 320
 321ifndef NO_BIONIC
 322  $(call feature_check,bionic)
 323  ifeq ($(feature-bionic), 1)
 324    BIONIC := 1
 325    CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
 326    CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
 327    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
 328    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
 329  endif
 330endif
 331
 332ifeq ($(feature-eventfd), 1)
 333  CFLAGS += -DHAVE_EVENTFD
 334endif
 335
 336ifeq ($(feature-get_current_dir_name), 1)
 337  CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
 338endif
 339
 340ifeq ($(feature-gettid), 1)
 341  CFLAGS += -DHAVE_GETTID
 342endif
 343
 
 
 
 
 344ifdef NO_LIBELF
 345  NO_DWARF := 1
 346  NO_DEMANGLE := 1
 347  NO_LIBUNWIND := 1
 348  NO_LIBDW_DWARF_UNWIND := 1
 349  NO_LIBBPF := 1
 350  NO_JVMTI := 1
 351else
 352  ifeq ($(feature-libelf), 0)
 353    ifeq ($(feature-glibc), 1)
 354      LIBC_SUPPORT := 1
 355    endif
 356    ifeq ($(BIONIC),1)
 357      LIBC_SUPPORT := 1
 358    endif
 359    ifeq ($(LIBC_SUPPORT),1)
 360      msg := $(warning No libelf found. Disables 'probe' tool, jvmti and BPF support in 'perf record'. Please install libelf-dev, libelf-devel or elfutils-libelf-devel);
 361
 362      NO_LIBELF := 1
 363      NO_DWARF := 1
 364      NO_DEMANGLE := 1
 365      NO_LIBUNWIND := 1
 366      NO_LIBDW_DWARF_UNWIND := 1
 367      NO_LIBBPF := 1
 368      NO_JVMTI := 1
 369    else
 
 
 
 
 
 
 
 
 
 
 
 
 370      ifneq ($(filter s% -static%,$(LDFLAGS),),)
 371        msg := $(error No static glibc found, please install glibc-static);
 372      else
 373        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
 374      endif
 375    endif
 376  else
 377    ifndef NO_LIBDW_DWARF_UNWIND
 378      ifneq ($(feature-libdw-dwarf-unwind),1)
 379        NO_LIBDW_DWARF_UNWIND := 1
 380        msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
 381      endif
 382    endif
 383    ifneq ($(feature-dwarf), 1)
 384      ifndef NO_DWARF
 385        msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
 386        NO_DWARF := 1
 387      endif
 388    else
 389      ifneq ($(feature-dwarf_getlocations), 1)
 390        msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
 391      else
 392        CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
 393      endif # dwarf_getlocations
 394    endif # Dwarf support
 395  endif # libelf support
 396endif # NO_LIBELF
 397
 398ifeq ($(feature-glibc), 1)
 399  CFLAGS += -DHAVE_GLIBC_SUPPORT
 400endif
 401
 402ifeq ($(feature-libaio), 1)
 403  ifndef NO_AIO
 404    CFLAGS += -DHAVE_AIO_SUPPORT
 405  endif
 406endif
 407
 408ifdef NO_DWARF
 409  NO_LIBDW_DWARF_UNWIND := 1
 410endif
 411
 412ifeq ($(feature-sched_getcpu), 1)
 413  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
 414endif
 415
 416ifeq ($(feature-setns), 1)
 417  CFLAGS += -DHAVE_SETNS_SUPPORT
 418  $(call detected,CONFIG_SETNS)
 419endif
 420
 421ifdef CORESIGHT
 422  $(call feature_check,libopencsd)
 423  ifeq ($(feature-libopencsd), 1)
 424    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
 425    ifeq ($(feature-reallocarray), 0)
 426      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
 427    endif
 428    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
 429    EXTLIBS += $(OPENCSDLIBS)
 430    $(call detected,CONFIG_LIBOPENCSD)
 431    ifdef CSTRACE_RAW
 432      CFLAGS += -DCS_DEBUG_RAW
 433      ifeq (${CSTRACE_RAW}, packed)
 434        CFLAGS += -DCS_RAW_PACKED
 435      endif
 436    endif
 437  endif
 438endif
 439
 440ifndef NO_LIBELF
 441  CFLAGS += -DHAVE_LIBELF_SUPPORT
 442  EXTLIBS += -lelf
 443  $(call detected,CONFIG_LIBELF)
 444
 445  ifeq ($(feature-libelf-mmap), 1)
 446    CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
 447  endif
 448
 449  ifeq ($(feature-libelf-getphdrnum), 1)
 450    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
 451  endif
 452
 453  ifeq ($(feature-libelf-gelf_getnote), 1)
 454    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
 455  else
 456    msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
 457  endif
 458
 459  ifeq ($(feature-libelf-getshdrstrndx), 1)
 460    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
 461  endif
 462
 
 
 
 
 
 
 
 
 463  ifndef NO_DWARF
 464    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
 465      msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
 466      NO_DWARF := 1
 467    else
 468      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
 469      LDFLAGS += $(LIBDW_LDFLAGS)
 470      EXTLIBS += ${DWARFLIBS}
 471      $(call detected,CONFIG_DWARF)
 472    endif # PERF_HAVE_DWARF_REGS
 473  endif # NO_DWARF
 474
 475  ifndef NO_LIBBPF
 476    ifeq ($(feature-bpf), 1)
 477      CFLAGS += -DHAVE_LIBBPF_SUPPORT
 478      $(call detected,CONFIG_LIBBPF)
 
 
 
 
 
 
 
 
 
 
 479    endif
 480
 481    ifndef NO_DWARF
 482      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 483        CFLAGS += -DHAVE_BPF_PROLOGUE
 484        $(call detected,CONFIG_BPF_PROLOGUE)
 485      else
 486        msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
 487      endif
 488    else
 489      msg := $(warning DWARF support is off, BPF prologue is disabled);
 490    endif
 491
 492  endif # NO_LIBBPF
 493endif # NO_LIBELF
 494
 495ifndef NO_SDT
 496  ifneq ($(feature-sdt), 1)
 497    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
 498    NO_SDT := 1;
 499  else
 500    CFLAGS += -DHAVE_SDT_EVENT
 501    $(call detected,CONFIG_SDT_EVENT)
 502  endif
 503endif
 504
 505ifdef PERF_HAVE_JITDUMP
 506  ifndef NO_LIBELF
 507    $(call detected,CONFIG_JITDUMP)
 508    CFLAGS += -DHAVE_JITDUMP
 509  endif
 510endif
 511
 512ifeq ($(SRCARCH),powerpc)
 513  ifndef NO_DWARF
 514    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
 515  endif
 516endif
 517
 518ifndef NO_LIBUNWIND
 519  have_libunwind :=
 520
 521  $(call feature_check,libunwind-x86)
 522  ifeq ($(feature-libunwind-x86), 1)
 523    $(call detected,CONFIG_LIBUNWIND_X86)
 524    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
 525    LDFLAGS += -lunwind-x86
 526    EXTLIBS_LIBUNWIND += -lunwind-x86
 527    have_libunwind = 1
 528  endif
 529
 530  $(call feature_check,libunwind-aarch64)
 531  ifeq ($(feature-libunwind-aarch64), 1)
 532    $(call detected,CONFIG_LIBUNWIND_AARCH64)
 533    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
 534    LDFLAGS += -lunwind-aarch64
 535    EXTLIBS_LIBUNWIND += -lunwind-aarch64
 536    have_libunwind = 1
 537    $(call feature_check,libunwind-debug-frame-aarch64)
 538    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
 539      msg := $(warning No debug_frame support found in libunwind-aarch64);
 540      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
 541    endif
 542  endif
 543
 544  ifneq ($(feature-libunwind), 1)
 545    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
 546    NO_LOCAL_LIBUNWIND := 1
 547  else
 548    have_libunwind := 1
 549    $(call detected,CONFIG_LOCAL_LIBUNWIND)
 550  endif
 551
 552  ifneq ($(have_libunwind), 1)
 553    NO_LIBUNWIND := 1
 554  endif
 555else
 556  NO_LOCAL_LIBUNWIND := 1
 557endif
 558
 559ifndef NO_LIBBPF
 560  ifneq ($(feature-bpf), 1)
 561    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
 562    NO_LIBBPF := 1
 563  endif
 564endif
 565
 566dwarf-post-unwind := 1
 567dwarf-post-unwind-text := BUG
 568
 569# setup DWARF post unwinder
 570ifdef NO_LIBUNWIND
 571  ifdef NO_LIBDW_DWARF_UNWIND
 572    msg := $(warning Disabling post unwind, no support found.);
 573    dwarf-post-unwind := 0
 574  else
 575    dwarf-post-unwind-text := libdw
 576    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
 577  endif
 578else
 579  dwarf-post-unwind-text := libunwind
 580  $(call detected,CONFIG_LIBUNWIND)
 581  # Enable libunwind support by default.
 582  ifndef NO_LIBDW_DWARF_UNWIND
 583    NO_LIBDW_DWARF_UNWIND := 1
 584  endif
 585endif
 586
 587ifeq ($(dwarf-post-unwind),1)
 588  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
 589  $(call detected,CONFIG_DWARF_UNWIND)
 590else
 591  NO_DWARF_UNWIND := 1
 592endif
 593
 594ifndef NO_LOCAL_LIBUNWIND
 595  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
 596    $(call feature_check,libunwind-debug-frame)
 597    ifneq ($(feature-libunwind-debug-frame), 1)
 598      msg := $(warning No debug_frame support found in libunwind);
 599      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 600    endif
 601  else
 602    # non-ARM has no dwarf_find_debug_frame() function:
 603    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 604  endif
 605  EXTLIBS += $(LIBUNWIND_LIBS)
 606  LDFLAGS += $(LIBUNWIND_LIBS)
 607endif
 608ifeq ($(findstring -static,${LDFLAGS}),-static)
 609  # gcc -static links libgcc_eh which contans piece of libunwind
 610  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
 611endif
 612
 613ifndef NO_LIBUNWIND
 614  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
 615  CFLAGS  += $(LIBUNWIND_CFLAGS)
 616  LDFLAGS += $(LIBUNWIND_LDFLAGS)
 617  EXTLIBS += $(EXTLIBS_LIBUNWIND)
 618endif
 619
 620ifeq ($(NO_SYSCALL_TABLE),0)
 621  $(call detected,CONFIG_TRACE)
 622else
 623  ifndef NO_LIBAUDIT
 
 624    ifneq ($(feature-libaudit), 1)
 625      msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
 626      NO_LIBAUDIT := 1
 627    else
 628      CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
 629      EXTLIBS += -laudit
 630      $(call detected,CONFIG_TRACE)
 631    endif
 632  endif
 633endif
 634
 635ifndef NO_LIBCRYPTO
 636  ifneq ($(feature-libcrypto), 1)
 637    msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
 638    NO_LIBCRYPTO := 1
 639  else
 640    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
 641    EXTLIBS += -lcrypto
 642    $(call detected,CONFIG_CRYPTO)
 643  endif
 644endif
 645
 646ifdef NO_NEWT
 647  NO_SLANG=1
 648endif
 649
 650ifndef NO_SLANG
 651  ifneq ($(feature-libslang), 1)
 652    ifneq ($(feature-libslang-include-subdir), 1)
 653      msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
 654      NO_SLANG := 1
 655    else
 656      CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
 657    endif
 658  endif
 659  ifndef NO_SLANG
 660    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
 661    CFLAGS += -DHAVE_SLANG_SUPPORT
 662    EXTLIBS += -lslang
 663    $(call detected,CONFIG_SLANG)
 664  endif
 665endif
 666
 667ifndef NO_GTK2
 668  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
 669  ifneq ($(feature-gtk2), 1)
 670    msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
 671    NO_GTK2 := 1
 672  else
 673    ifeq ($(feature-gtk2-infobar), 1)
 674      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
 675    endif
 676    CFLAGS += -DHAVE_GTK2_SUPPORT
 677    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
 678    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
 679    EXTLIBS += -ldl
 680  endif
 681endif
 682
 683ifdef NO_LIBPERL
 684  CFLAGS += -DNO_LIBPERL
 685else
 686  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
 687  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
 688  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
 689  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
 690  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
 691  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
 692  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 693
 694  ifneq ($(feature-libperl), 1)
 695    CFLAGS += -DNO_LIBPERL
 696    NO_LIBPERL := 1
 697    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
 698  else
 699    LDFLAGS += $(PERL_EMBED_LDFLAGS)
 700    EXTLIBS += $(PERL_EMBED_LIBADD)
 701    CFLAGS += -DHAVE_LIBPERL_SUPPORT
 702    $(call detected,CONFIG_LIBPERL)
 703  endif
 704endif
 705
 706ifeq ($(feature-timerfd), 1)
 707  CFLAGS += -DHAVE_TIMERFD_SUPPORT
 708else
 709  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
 710endif
 711
 712disable-python = $(eval $(disable-python_code))
 713define disable-python_code
 714  CFLAGS += -DNO_LIBPYTHON
 715  $(warning $1)
 716  NO_LIBPYTHON := 1
 717endef
 718
 719ifdef NO_LIBPYTHON
 720  $(call disable-python,Python support disabled by user)
 721else
 722
 723  ifndef PYTHON
 724    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
 725  else
 726    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
 727
 728    ifndef PYTHON_CONFIG
 729      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
 730    else
 731
 732      ifneq ($(feature-libpython), 1)
 733        $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
 734      else
 735         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
 736         EXTLIBS += $(PYTHON_EMBED_LIBADD)
 737         LANG_BINDINGS += $(obj-perf)python/perf.so
 738         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
 739         $(call detected,CONFIG_LIBPYTHON)
 740      endif
 741    endif
 742  endif
 743endif
 744
 745ifeq ($(feature-libbfd), 1)
 746  EXTLIBS += -lbfd -lopcodes
 747else
 748  # we are on a system that requires -liberty and (maybe) -lz
 749  # to link against -lbfd; test each case individually here
 750
 751  # call all detections now so we get correct
 752  # status in VF output
 753  $(call feature_check,libbfd-liberty)
 754  $(call feature_check,libbfd-liberty-z)
 755
 756  ifeq ($(feature-libbfd-liberty), 1)
 757    EXTLIBS += -lbfd -lopcodes -liberty
 758    FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
 759  else
 760    ifeq ($(feature-libbfd-liberty-z), 1)
 761      EXTLIBS += -lbfd -lopcodes -liberty -lz
 762      FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
 763    endif
 764  endif
 765  $(call feature_check,disassembler-four-args)
 766endif
 767
 768ifdef NO_DEMANGLE
 769  CFLAGS += -DNO_DEMANGLE
 770else
 771  ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
 772    EXTLIBS += -liberty
 773  else
 774    ifeq ($(filter -liberty,$(EXTLIBS)),)
 775      $(call feature_check,cplus-demangle)
 776
 777      # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
 778      # or any of 'bfd iberty z' trinity
 779      ifeq ($(feature-cplus-demangle), 1)
 780        EXTLIBS += -liberty
 781      else
 782        msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
 783        CFLAGS += -DNO_DEMANGLE
 784      endif
 785    endif
 786  endif
 787
 788  ifneq ($(filter -liberty,$(EXTLIBS)),)
 789    CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 790  endif
 791endif
 792
 793ifneq ($(filter -lbfd,$(EXTLIBS)),)
 794  CFLAGS += -DHAVE_LIBBFD_SUPPORT
 795endif
 796
 797ifndef NO_ZLIB
 798  ifeq ($(feature-zlib), 1)
 799    CFLAGS += -DHAVE_ZLIB_SUPPORT
 800    EXTLIBS += -lz
 801    $(call detected,CONFIG_ZLIB)
 802  else
 803    NO_ZLIB := 1
 804  endif
 805endif
 806
 807ifndef NO_LZMA
 808  ifeq ($(feature-lzma), 1)
 809    CFLAGS += -DHAVE_LZMA_SUPPORT
 810    EXTLIBS += -llzma
 811    $(call detected,CONFIG_LZMA)
 812  else
 813    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
 814    NO_LZMA := 1
 815  endif
 816endif
 817
 818ifndef NO_LIBZSTD
 819  ifeq ($(feature-libzstd), 1)
 820    CFLAGS += -DHAVE_ZSTD_SUPPORT
 821    CFLAGS += $(LIBZSTD_CFLAGS)
 822    LDFLAGS += $(LIBZSTD_LDFLAGS)
 823    EXTLIBS += -lzstd
 824    $(call detected,CONFIG_ZSTD)
 825  else
 826    msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
 827    NO_LIBZSTD := 1
 828  endif
 829endif
 830
 831ifndef NO_LIBCAP
 832  ifeq ($(feature-libcap), 1)
 833    CFLAGS += -DHAVE_LIBCAP_SUPPORT
 834    EXTLIBS += -lcap
 835    $(call detected,CONFIG_LIBCAP)
 836  else
 837    msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
 838    NO_LIBCAP := 1
 839  endif
 840endif
 841
 842ifndef NO_BACKTRACE
 843  ifeq ($(feature-backtrace), 1)
 844    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
 845  endif
 846endif
 847
 848ifndef NO_LIBNUMA
 849  ifeq ($(feature-libnuma), 0)
 850    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
 851    NO_LIBNUMA := 1
 852  else
 853    ifeq ($(feature-numa_num_possible_cpus), 0)
 854      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
 855      NO_LIBNUMA := 1
 856    else
 857      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
 858      EXTLIBS += -lnuma
 859      $(call detected,CONFIG_NUMA)
 860    endif
 861  endif
 862endif
 863
 864ifdef HAVE_KVM_STAT_SUPPORT
 865    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
 866endif
 867
 868ifeq ($(feature-disassembler-four-args), 1)
 869    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
 870endif
 871
 872ifeq (${IS_64_BIT}, 1)
 873  ifndef NO_PERF_READ_VDSO32
 874    $(call feature_check,compile-32)
 875    ifeq ($(feature-compile-32), 1)
 876      CFLAGS += -DHAVE_PERF_READ_VDSO32
 877    else
 878      NO_PERF_READ_VDSO32 := 1
 879    endif
 880  endif
 881  ifneq ($(SRCARCH), x86)
 882    NO_PERF_READ_VDSOX32 := 1
 883  endif
 884  ifndef NO_PERF_READ_VDSOX32
 885    $(call feature_check,compile-x32)
 886    ifeq ($(feature-compile-x32), 1)
 887      CFLAGS += -DHAVE_PERF_READ_VDSOX32
 888    else
 889      NO_PERF_READ_VDSOX32 := 1
 890    endif
 891  endif
 892else
 893  NO_PERF_READ_VDSO32 := 1
 894  NO_PERF_READ_VDSOX32 := 1
 895endif
 896
 897ifndef NO_LIBBABELTRACE
 898  $(call feature_check,libbabeltrace)
 899  ifeq ($(feature-libbabeltrace), 1)
 900    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
 901    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
 902    EXTLIBS += -lbabeltrace-ctf
 903    $(call detected,CONFIG_LIBBABELTRACE)
 904  else
 905    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
 906  endif
 907endif
 908
 909ifndef NO_AUXTRACE
 910  ifeq ($(SRCARCH),x86)
 911    ifeq ($(feature-get_cpuid), 0)
 912      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
 913      NO_AUXTRACE := 1
 914    endif
 915  endif
 916  ifndef NO_AUXTRACE
 917    $(call detected,CONFIG_AUXTRACE)
 918    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
 919  endif
 920endif
 921
 922ifndef NO_JVMTI
 923  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
 924    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
 925  else
 926    ifneq (,$(wildcard /usr/sbin/alternatives))
 927      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
 928    endif
 929  endif
 930  ifndef JDIR
 931    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
 932    NO_JVMTI := 1
 933  endif
 934endif
 935
 936ifndef NO_JVMTI
 937  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
 938  $(call feature_check,jvmti)
 939  ifeq ($(feature-jvmti), 1)
 940    $(call detected_var,JDIR)
 941    ifndef NO_JVMTI_CMLR
 942      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
 943      $(call feature_check,jvmti-cmlr)
 944      ifeq ($(feature-jvmti-cmlr), 1)
 945        CFLAGS += -DHAVE_JVMTI_CMLR
 946      endif
 947    endif # NO_JVMTI_CMLR
 948  else
 949    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
 950    NO_JVMTI := 1
 951  endif
 952endif
 953
 954USE_CXX = 0
 955USE_CLANGLLVM = 0
 956ifdef LIBCLANGLLVM
 957  $(call feature_check,cxx)
 958  ifneq ($(feature-cxx), 1)
 959    msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
 960  else
 961    $(call feature_check,llvm)
 962    $(call feature_check,llvm-version)
 963    ifneq ($(feature-llvm), 1)
 964      msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
 965    else
 966      $(call feature_check,clang)
 967      ifneq ($(feature-clang), 1)
 968        msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
 969      else
 970        CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
 971        CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
 972        $(call detected,CONFIG_CXX)
 973        $(call detected,CONFIG_CLANGLLVM)
 974	USE_CXX = 1
 975	USE_LLVM = 1
 976	USE_CLANG = 1
 977        ifneq ($(feature-llvm-version),1)
 978          msg := $(warning This version of LLVM is not tested. May cause build errors)
 979        endif
 980      endif
 981    endif
 
 
 
 
 
 
 
 
 
 
 
 
 
 982  endif
 983endif
 984
 985# Among the variables below, these:
 986#   perfexecdir
 987#   perf_include_dir
 988#   perf_examples_dir
 989#   template_dir
 990#   mandir
 991#   infodir
 992#   htmldir
 993#   ETC_PERFCONFIG (but not sysconfdir)
 994# can be specified as a relative path some/where/else;
 995# this is interpreted as relative to $(prefix) and "perf" at
 996# runtime figures out where they are based on the path to the executable.
 997# This can help installing the suite in a relocatable way.
 998
 999# Make the path relative to DESTDIR, not to prefix
1000ifndef DESTDIR
1001prefix ?= $(HOME)
1002endif
1003bindir_relative = bin
1004bindir = $(abspath $(prefix)/$(bindir_relative))
1005mandir = share/man
1006infodir = share/info
1007perfexecdir = libexec/perf-core
1008perf_include_dir = lib/perf/include
1009perf_examples_dir = lib/perf/examples
1010sharedir = $(prefix)/share
1011template_dir = share/perf-core/templates
1012STRACE_GROUPS_DIR = share/perf-core/strace/groups
1013htmldir = share/doc/perf-doc
1014tipdir = share/doc/perf-tip
1015srcdir = $(srctree)/tools/perf
1016ifeq ($(prefix),/usr)
1017sysconfdir = /etc
1018ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1019else
1020sysconfdir = $(prefix)/etc
1021ETC_PERFCONFIG = etc/perfconfig
1022endif
1023ifndef lib
1024ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1025lib = lib64
1026else
1027lib = lib
1028endif
1029endif # lib
1030libdir = $(prefix)/$(lib)
1031
1032# Shell quote (do not use $(call) to accommodate ancient setups);
1033ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1034STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1035DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1036bindir_SQ = $(subst ','\'',$(bindir))
1037mandir_SQ = $(subst ','\'',$(mandir))
1038infodir_SQ = $(subst ','\'',$(infodir))
1039perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1040perf_include_dir_SQ = $(subst ','\'',$(perf_include_dir))
1041perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1042template_dir_SQ = $(subst ','\'',$(template_dir))
1043htmldir_SQ = $(subst ','\'',$(htmldir))
1044tipdir_SQ = $(subst ','\'',$(tipdir))
1045prefix_SQ = $(subst ','\'',$(prefix))
1046sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1047libdir_SQ = $(subst ','\'',$(libdir))
1048srcdir_SQ = $(subst ','\'',$(srcdir))
1049
1050ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1051perfexec_instdir = $(perfexecdir)
1052perf_include_instdir = $(perf_include_dir)
1053perf_examples_instdir = $(perf_examples_dir)
1054STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1055tip_instdir = $(tipdir)
1056else
1057perfexec_instdir = $(prefix)/$(perfexecdir)
1058perf_include_instdir = $(prefix)/$(perf_include_dir)
1059perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1060STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1061tip_instdir = $(prefix)/$(tipdir)
1062endif
1063perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1064perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1065perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1066STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1067tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1068
1069# If we install to $(HOME) we keep the traceevent default:
1070# $(HOME)/.traceevent/plugins
1071# Otherwise we install plugins into the global $(libdir).
1072ifdef DESTDIR
1073plugindir=$(libdir)/traceevent/plugins
1074plugindir_SQ= $(subst ','\'',$(plugindir))
1075endif
1076
1077print_var = $(eval $(print_var_code)) $(info $(MSG))
1078define print_var_code
1079    MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
1080endef
1081
1082ifeq ($(VF),1)
1083  # Display EXTRA features which are detected manualy
1084  # from here with feature_check call and thus cannot
1085  # be partof global state output.
1086  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),))
1087  $(call print_var,prefix)
1088  $(call print_var,bindir)
1089  $(call print_var,libdir)
1090  $(call print_var,sysconfdir)
1091  $(call print_var,LIBUNWIND_DIR)
1092  $(call print_var,LIBDW_DIR)
1093  $(call print_var,JDIR)
1094
1095  ifeq ($(dwarf-post-unwind),1)
1096    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
1097  endif
1098  $(info )
1099endif
1100
1101$(call detected_var,bindir_SQ)
1102$(call detected_var,PYTHON_WORD)
1103ifneq ($(OUTPUT),)
1104$(call detected_var,OUTPUT)
1105endif
1106$(call detected_var,htmldir_SQ)
1107$(call detected_var,infodir_SQ)
1108$(call detected_var,mandir_SQ)
1109$(call detected_var,ETC_PERFCONFIG_SQ)
1110$(call detected_var,STRACE_GROUPS_DIR_SQ)
1111$(call detected_var,prefix_SQ)
1112$(call detected_var,perfexecdir_SQ)
1113$(call detected_var,perf_include_dir_SQ)
1114$(call detected_var,perf_examples_dir_SQ)
1115$(call detected_var,tipdir_SQ)
1116$(call detected_var,srcdir_SQ)
1117$(call detected_var,LIBDIR)
1118$(call detected_var,GTK_CFLAGS)
1119$(call detected_var,PERL_EMBED_CCOPTS)
1120$(call detected_var,PYTHON_EMBED_CCOPTS)
v5.9
   1# SPDX-License-Identifier: GPL-2.0-only
   2
   3ifeq ($(src-perf),)
   4src-perf := $(srctree)/tools/perf
   5endif
   6
   7ifeq ($(obj-perf),)
   8obj-perf := $(OUTPUT)
   9endif
  10
  11ifneq ($(obj-perf),)
  12obj-perf := $(abspath $(obj-perf))/
  13endif
  14
  15$(shell printf "" > $(OUTPUT).config-detected)
  16detected     = $(shell echo "$(1)=y"       >> $(OUTPUT).config-detected)
  17detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
  18
  19CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
  20
  21include $(srctree)/tools/scripts/Makefile.arch
  22
  23$(call detected_var,SRCARCH)
  24
  25NO_PERF_REGS := 1
  26
  27ifneq ($(NO_SYSCALL_TABLE),1)
  28  NO_SYSCALL_TABLE := 1
  29
  30  ifeq ($(SRCARCH),x86)
  31    ifeq (${IS_64_BIT}, 1)
  32      NO_SYSCALL_TABLE := 0
  33    endif
  34  else
  35    ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc arm64 s390))
  36      NO_SYSCALL_TABLE := 0
  37    endif
  38  endif
  39
  40  ifneq ($(NO_SYSCALL_TABLE),1)
  41    CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
  42  endif
  43endif
  44
  45# Additional ARCH settings for ppc
  46ifeq ($(SRCARCH),powerpc)
  47  NO_PERF_REGS := 0
 
  48  CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
  49  LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
  50endif
  51
  52# Additional ARCH settings for x86
  53ifeq ($(SRCARCH),x86)
  54  $(call detected,CONFIG_X86)
  55  ifeq (${IS_64_BIT}, 1)
 
  56    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
  57    ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
  58    LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
  59    $(call detected,CONFIG_X86_64)
  60  else
  61    LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
  62  endif
  63  NO_PERF_REGS := 0
  64endif
  65
  66ifeq ($(SRCARCH),arm)
  67  NO_PERF_REGS := 0
  68  LIBUNWIND_LIBS = -lunwind -lunwind-arm
  69endif
  70
  71ifeq ($(SRCARCH),arm64)
  72  NO_PERF_REGS := 0
 
  73  CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
  74  LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
  75endif
  76
  77ifeq ($(SRCARCH),riscv)
  78  NO_PERF_REGS := 0
  79endif
  80
  81ifeq ($(SRCARCH),csky)
  82  NO_PERF_REGS := 0
  83endif
  84
  85ifeq ($(ARCH),s390)
  86  NO_PERF_REGS := 0
 
  87  CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
  88endif
  89
  90ifeq ($(NO_PERF_REGS),0)
  91  $(call detected,CONFIG_PERF_REGS)
  92endif
  93
 
 
 
 
  94# So far there's only x86 and arm libdw unwind support merged in perf.
  95# Disable it on all other architectures in case libdw unwind
  96# support is detected in system. Add supported architectures
  97# to the check.
  98ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv))
  99  NO_LIBDW_DWARF_UNWIND := 1
 100endif
 101
 102ifeq ($(LIBUNWIND_LIBS),)
 103  NO_LIBUNWIND := 1
 104endif
 105#
 106# For linking with debug library, run like:
 107#
 108#   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
 109#
 110
 111libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
 112define libunwind_arch_set_flags_code
 113  FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
 114  FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
 115endef
 116
 117ifdef LIBUNWIND_DIR
 118  LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
 119  LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
 120  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
 121  $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
 122endif
 123
 124# Set per-feature check compilation flags
 125FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
 126FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
 127FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
 128FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
 129
 130FEATURE_CHECK_LDFLAGS-libunwind-arm = -lunwind -lunwind-arm
 131FEATURE_CHECK_LDFLAGS-libunwind-aarch64 = -lunwind -lunwind-aarch64
 132FEATURE_CHECK_LDFLAGS-libunwind-x86 = -lunwind -llzma -lunwind-x86
 133FEATURE_CHECK_LDFLAGS-libunwind-x86_64 = -lunwind -llzma -lunwind-x86_64
 134
 135FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
 136
 137ifdef CSINCLUDES
 138  LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
 139endif
 140OPENCSDLIBS := -lopencsd_c_api -lopencsd
 141ifdef CSLIBS
 142  LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
 143endif
 144FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
 145FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
 146
 147ifeq ($(NO_PERF_REGS),0)
 148  CFLAGS += -DHAVE_PERF_REGS_SUPPORT
 149endif
 150
 151# for linking with debug library, run like:
 152# make DEBUG=1 LIBDW_DIR=/opt/libdw/
 153ifdef LIBDW_DIR
 154  LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
 155  LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
 156endif
 157DWARFLIBS := -ldw
 158ifeq ($(findstring -static,${LDFLAGS}),-static)
 159  DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
 160endif
 161FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
 162FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
 163
 164# for linking with debug library, run like:
 165# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
 166ifdef LIBBABELTRACE_DIR
 167  LIBBABELTRACE_CFLAGS  := -I$(LIBBABELTRACE_DIR)/include
 168  LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
 169endif
 170FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
 171FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
 172
 173ifdef LIBZSTD_DIR
 174  LIBZSTD_CFLAGS  := -I$(LIBZSTD_DIR)/lib
 175  LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
 176endif
 177FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
 178FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
 179
 180FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
 181# include ARCH specific config
 182-include $(src-perf)/arch/$(SRCARCH)/Makefile
 183
 184ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 185  CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 186endif
 187
 188include $(srctree)/tools/scripts/utilities.mak
 189
 190ifeq ($(call get-executable,$(FLEX)),)
 191  dummy := $(error Error: $(FLEX) is missing on this system, please install it)
 192endif
 193
 194ifeq ($(call get-executable,$(BISON)),)
 195  dummy := $(error Error: $(BISON) is missing on this system, please install it)
 196endif
 197
 198# Treat warnings as errors unless directed not to
 199ifneq ($(WERROR),0)
 200  CORE_CFLAGS += -Werror
 201  CXXFLAGS += -Werror
 202endif
 203
 204ifndef DEBUG
 205  DEBUG := 0
 206endif
 207
 208ifeq ($(DEBUG),0)
 209ifeq ($(CC_NO_CLANG), 0)
 210  CORE_CFLAGS += -O3
 211else
 212  CORE_CFLAGS += -O6
 213endif
 214endif
 215
 216ifdef PARSER_DEBUG
 217  PARSER_DEBUG_BISON := -t
 218  PARSER_DEBUG_FLEX  := -d
 219  CFLAGS             += -DPARSER_DEBUG
 220  $(call detected_var,PARSER_DEBUG_BISON)
 221  $(call detected_var,PARSER_DEBUG_FLEX)
 222endif
 223
 224# Try different combinations to accommodate systems that only have
 225# python[2][-config] in weird combinations but always preferring
 226# python2 and python2-config as per pep-0394. If we catch a
 227# python[-config] in version 3, the version check will kill it.
 228PYTHON2 := $(if $(call get-executable,python2),python2,python)
 229override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2))
 230PYTHON2_CONFIG := \
 231  $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
 232override PYTHON_CONFIG := \
 233  $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG))
 234
 235grep-libs  = $(filter -l%,$(1))
 236strip-libs  = $(filter-out -l%,$(1))
 237
 238PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
 239
 240# Python 3.8 changed the output of `python-config --ldflags` to not include the
 241# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
 242# libpython fails if that flag is not included in LDFLAGS
 243ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
 244  PYTHON_CONFIG_LDFLAGS := --ldflags --embed
 245else
 246  PYTHON_CONFIG_LDFLAGS := --ldflags
 247endif
 248
 249ifdef PYTHON_CONFIG
 250  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
 251  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
 252  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
 253  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
 254  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
 255endif
 256
 257FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
 258FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
 259FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
 260FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
 261
 262FEATURE_CHECK_LDFLAGS-libaio = -lrt
 263
 264FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
 265
 266CORE_CFLAGS += -fno-omit-frame-pointer
 267CORE_CFLAGS += -ggdb3
 268CORE_CFLAGS += -funwind-tables
 269CORE_CFLAGS += -Wall
 270CORE_CFLAGS += -Wextra
 271CORE_CFLAGS += -std=gnu99
 272
 273CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
 274CXXFLAGS += -Wall
 275CXXFLAGS += -fno-omit-frame-pointer
 276CXXFLAGS += -ggdb3
 277CXXFLAGS += -funwind-tables
 278CXXFLAGS += -Wno-strict-aliasing
 279
 280# Enforce a non-executable stack, as we may regress (again) in the future by
 281# adding assembler files missing the .GNU-stack linker note.
 282LDFLAGS += -Wl,-z,noexecstack
 283
 284EXTLIBS = -lpthread -lrt -lm -ldl
 285
 286ifneq ($(TCMALLOC),)
 287  CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
 288  EXTLIBS += -ltcmalloc
 289endif
 290
 291ifeq ($(FEATURES_DUMP),)
 292include $(srctree)/tools/build/Makefile.feature
 293else
 294include $(FEATURES_DUMP)
 295endif
 296
 297ifeq ($(feature-stackprotector-all), 1)
 298  CORE_CFLAGS += -fstack-protector-all
 299endif
 300
 301ifeq ($(DEBUG),0)
 302  ifeq ($(feature-fortify-source), 1)
 303    CORE_CFLAGS += -D_FORTIFY_SOURCE=2
 304  endif
 305endif
 306
 307INC_FLAGS += -I$(srctree)/tools/lib/perf/include
 308INC_FLAGS += -I$(src-perf)/util/include
 309INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
 310INC_FLAGS += -I$(srctree)/tools/include/
 311INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
 312INC_FLAGS += -I$(srctree)/tools/include/uapi
 313INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
 314INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
 315
 316# $(obj-perf)      for generated common-cmds.h
 317# $(obj-perf)/util for generated bison/flex headers
 318ifneq ($(OUTPUT),)
 319INC_FLAGS += -I$(obj-perf)/util
 320INC_FLAGS += -I$(obj-perf)
 321endif
 322
 323INC_FLAGS += -I$(src-perf)/util
 324INC_FLAGS += -I$(src-perf)
 325INC_FLAGS += -I$(srctree)/tools/lib/
 326
 327CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 328
 329CFLAGS   += $(CORE_CFLAGS) $(INC_FLAGS)
 330CXXFLAGS += $(INC_FLAGS)
 331
 332LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
 333
 334ifeq ($(feature-sync-compare-and-swap), 1)
 335  CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
 336endif
 337
 338ifeq ($(feature-pthread-attr-setaffinity-np), 1)
 339  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
 340endif
 341
 342ifeq ($(feature-pthread-barrier), 1)
 343  CFLAGS += -DHAVE_PTHREAD_BARRIER
 344endif
 345
 346ifndef NO_BIONIC
 347  $(call feature_check,bionic)
 348  ifeq ($(feature-bionic), 1)
 349    BIONIC := 1
 350    CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
 351    CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
 352    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
 353    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
 354  endif
 355endif
 356
 357ifeq ($(feature-eventfd), 1)
 358  CFLAGS += -DHAVE_EVENTFD_SUPPORT
 359endif
 360
 361ifeq ($(feature-get_current_dir_name), 1)
 362  CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
 363endif
 364
 365ifeq ($(feature-gettid), 1)
 366  CFLAGS += -DHAVE_GETTID
 367endif
 368
 369ifeq ($(feature-file-handle), 1)
 370  CFLAGS += -DHAVE_FILE_HANDLE
 371endif
 372
 373ifdef NO_LIBELF
 374  NO_DWARF := 1
 375  NO_DEMANGLE := 1
 376  NO_LIBUNWIND := 1
 377  NO_LIBDW_DWARF_UNWIND := 1
 378  NO_LIBBPF := 1
 379  NO_JVMTI := 1
 380else
 381  ifeq ($(feature-libelf), 0)
 382    ifeq ($(feature-glibc), 1)
 383      LIBC_SUPPORT := 1
 384    endif
 385    ifeq ($(BIONIC),1)
 386      LIBC_SUPPORT := 1
 387    endif
 388    ifeq ($(LIBC_SUPPORT),1)
 389      msg := $(warning No libelf found. Disables 'probe' tool, jvmti and BPF support in 'perf record'. Please install libelf-dev, libelf-devel or elfutils-libelf-devel);
 390
 391      NO_LIBELF := 1
 392      NO_DWARF := 1
 393      NO_DEMANGLE := 1
 394      NO_LIBUNWIND := 1
 395      NO_LIBDW_DWARF_UNWIND := 1
 396      NO_LIBBPF := 1
 397      NO_JVMTI := 1
 398    else
 399      ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
 400        ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
 401          msg := $(error No libasan found, please install libasan);
 402        endif
 403      endif
 404
 405      ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
 406        ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
 407          msg := $(error No libubsan found, please install libubsan);
 408        endif
 409      endif
 410
 411      ifneq ($(filter s% -static%,$(LDFLAGS),),)
 412        msg := $(error No static glibc found, please install glibc-static);
 413      else
 414        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
 415      endif
 416    endif
 417  else
 418    ifndef NO_LIBDW_DWARF_UNWIND
 419      ifneq ($(feature-libdw-dwarf-unwind),1)
 420        NO_LIBDW_DWARF_UNWIND := 1
 421        msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
 422      endif
 423    endif
 424    ifneq ($(feature-dwarf), 1)
 425      ifndef NO_DWARF
 426        msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
 427        NO_DWARF := 1
 428      endif
 429    else
 430      ifneq ($(feature-dwarf_getlocations), 1)
 431        msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
 432      else
 433        CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
 434      endif # dwarf_getlocations
 435    endif # Dwarf support
 436  endif # libelf support
 437endif # NO_LIBELF
 438
 439ifeq ($(feature-glibc), 1)
 440  CFLAGS += -DHAVE_GLIBC_SUPPORT
 441endif
 442
 443ifeq ($(feature-libaio), 1)
 444  ifndef NO_AIO
 445    CFLAGS += -DHAVE_AIO_SUPPORT
 446  endif
 447endif
 448
 449ifdef NO_DWARF
 450  NO_LIBDW_DWARF_UNWIND := 1
 451endif
 452
 453ifeq ($(feature-sched_getcpu), 1)
 454  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
 455endif
 456
 457ifeq ($(feature-setns), 1)
 458  CFLAGS += -DHAVE_SETNS_SUPPORT
 459  $(call detected,CONFIG_SETNS)
 460endif
 461
 462ifdef CORESIGHT
 463  $(call feature_check,libopencsd)
 464  ifeq ($(feature-libopencsd), 1)
 465    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
 466    ifeq ($(feature-reallocarray), 0)
 467      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
 468    endif
 469    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
 470    EXTLIBS += $(OPENCSDLIBS)
 471    $(call detected,CONFIG_LIBOPENCSD)
 472    ifdef CSTRACE_RAW
 473      CFLAGS += -DCS_DEBUG_RAW
 474      ifeq (${CSTRACE_RAW}, packed)
 475        CFLAGS += -DCS_RAW_PACKED
 476      endif
 477    endif
 478  endif
 479endif
 480
 481ifndef NO_LIBELF
 482  CFLAGS += -DHAVE_LIBELF_SUPPORT
 483  EXTLIBS += -lelf
 484  $(call detected,CONFIG_LIBELF)
 485
 486  ifeq ($(feature-libelf-mmap), 1)
 487    CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
 488  endif
 489
 490  ifeq ($(feature-libelf-getphdrnum), 1)
 491    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
 492  endif
 493
 494  ifeq ($(feature-libelf-gelf_getnote), 1)
 495    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
 496  else
 497    msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
 498  endif
 499
 500  ifeq ($(feature-libelf-getshdrstrndx), 1)
 501    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
 502  endif
 503
 504  ifndef NO_LIBDEBUGINFOD
 505    $(call feature_check,libdebuginfod)
 506    ifeq ($(feature-libdebuginfod), 1)
 507      CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
 508      EXTLIBS += -ldebuginfod
 509    endif
 510  endif
 511
 512  ifndef NO_DWARF
 513    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
 514      msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
 515      NO_DWARF := 1
 516    else
 517      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
 518      LDFLAGS += $(LIBDW_LDFLAGS)
 519      EXTLIBS += ${DWARFLIBS}
 520      $(call detected,CONFIG_DWARF)
 521    endif # PERF_HAVE_DWARF_REGS
 522  endif # NO_DWARF
 523
 524  ifndef NO_LIBBPF
 525    ifeq ($(feature-bpf), 1)
 526      CFLAGS += -DHAVE_LIBBPF_SUPPORT
 527      $(call detected,CONFIG_LIBBPF)
 528
 529      # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
 530      $(call feature_check,libbpf)
 531      ifdef LIBBPF_DYNAMIC
 532        ifeq ($(feature-libbpf), 1)
 533          EXTLIBS += -lbpf
 534        else
 535          dummy := $(error Error: No libbpf devel library found, please install libbpf-devel);
 536        endif
 537      endif
 538    endif
 539
 540    ifndef NO_DWARF
 541      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 542        CFLAGS += -DHAVE_BPF_PROLOGUE
 543        $(call detected,CONFIG_BPF_PROLOGUE)
 544      else
 545        msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
 546      endif
 547    else
 548      msg := $(warning DWARF support is off, BPF prologue is disabled);
 549    endif
 550
 551  endif # NO_LIBBPF
 552endif # NO_LIBELF
 553
 554ifndef NO_SDT
 555  ifneq ($(feature-sdt), 1)
 556    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
 557    NO_SDT := 1;
 558  else
 559    CFLAGS += -DHAVE_SDT_EVENT
 560    $(call detected,CONFIG_SDT_EVENT)
 561  endif
 562endif
 563
 564ifdef PERF_HAVE_JITDUMP
 565  ifndef NO_LIBELF
 566    $(call detected,CONFIG_JITDUMP)
 567    CFLAGS += -DHAVE_JITDUMP
 568  endif
 569endif
 570
 571ifeq ($(SRCARCH),powerpc)
 572  ifndef NO_DWARF
 573    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
 574  endif
 575endif
 576
 577ifndef NO_LIBUNWIND
 578  have_libunwind :=
 579
 580  $(call feature_check,libunwind-x86)
 581  ifeq ($(feature-libunwind-x86), 1)
 582    $(call detected,CONFIG_LIBUNWIND_X86)
 583    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
 584    LDFLAGS += -lunwind-x86
 585    EXTLIBS_LIBUNWIND += -lunwind-x86
 586    have_libunwind = 1
 587  endif
 588
 589  $(call feature_check,libunwind-aarch64)
 590  ifeq ($(feature-libunwind-aarch64), 1)
 591    $(call detected,CONFIG_LIBUNWIND_AARCH64)
 592    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
 593    LDFLAGS += -lunwind-aarch64
 594    EXTLIBS_LIBUNWIND += -lunwind-aarch64
 595    have_libunwind = 1
 596    $(call feature_check,libunwind-debug-frame-aarch64)
 597    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
 598      msg := $(warning No debug_frame support found in libunwind-aarch64);
 599      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
 600    endif
 601  endif
 602
 603  ifneq ($(feature-libunwind), 1)
 604    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
 605    NO_LOCAL_LIBUNWIND := 1
 606  else
 607    have_libunwind := 1
 608    $(call detected,CONFIG_LOCAL_LIBUNWIND)
 609  endif
 610
 611  ifneq ($(have_libunwind), 1)
 612    NO_LIBUNWIND := 1
 613  endif
 614else
 615  NO_LOCAL_LIBUNWIND := 1
 616endif
 617
 618ifndef NO_LIBBPF
 619  ifneq ($(feature-bpf), 1)
 620    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
 621    NO_LIBBPF := 1
 622  endif
 623endif
 624
 625dwarf-post-unwind := 1
 626dwarf-post-unwind-text := BUG
 627
 628# setup DWARF post unwinder
 629ifdef NO_LIBUNWIND
 630  ifdef NO_LIBDW_DWARF_UNWIND
 631    msg := $(warning Disabling post unwind, no support found.);
 632    dwarf-post-unwind := 0
 633  else
 634    dwarf-post-unwind-text := libdw
 635    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
 636  endif
 637else
 638  dwarf-post-unwind-text := libunwind
 639  $(call detected,CONFIG_LIBUNWIND)
 640  # Enable libunwind support by default.
 641  ifndef NO_LIBDW_DWARF_UNWIND
 642    NO_LIBDW_DWARF_UNWIND := 1
 643  endif
 644endif
 645
 646ifeq ($(dwarf-post-unwind),1)
 647  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
 648  $(call detected,CONFIG_DWARF_UNWIND)
 649else
 650  NO_DWARF_UNWIND := 1
 651endif
 652
 653ifndef NO_LOCAL_LIBUNWIND
 654  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
 655    $(call feature_check,libunwind-debug-frame)
 656    ifneq ($(feature-libunwind-debug-frame), 1)
 657      msg := $(warning No debug_frame support found in libunwind);
 658      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 659    endif
 660  else
 661    # non-ARM has no dwarf_find_debug_frame() function:
 662    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 663  endif
 664  EXTLIBS += $(LIBUNWIND_LIBS)
 665  LDFLAGS += $(LIBUNWIND_LIBS)
 666endif
 667ifeq ($(findstring -static,${LDFLAGS}),-static)
 668  # gcc -static links libgcc_eh which contans piece of libunwind
 669  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
 670endif
 671
 672ifndef NO_LIBUNWIND
 673  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
 674  CFLAGS  += $(LIBUNWIND_CFLAGS)
 675  LDFLAGS += $(LIBUNWIND_LDFLAGS)
 676  EXTLIBS += $(EXTLIBS_LIBUNWIND)
 677endif
 678
 679ifeq ($(NO_SYSCALL_TABLE),0)
 680  $(call detected,CONFIG_TRACE)
 681else
 682  ifndef NO_LIBAUDIT
 683    $(call feature_check,libaudit)
 684    ifneq ($(feature-libaudit), 1)
 685      msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
 686      NO_LIBAUDIT := 1
 687    else
 688      CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
 689      EXTLIBS += -laudit
 690      $(call detected,CONFIG_TRACE)
 691    endif
 692  endif
 693endif
 694
 695ifndef NO_LIBCRYPTO
 696  ifneq ($(feature-libcrypto), 1)
 697    msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
 698    NO_LIBCRYPTO := 1
 699  else
 700    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
 701    EXTLIBS += -lcrypto
 702    $(call detected,CONFIG_CRYPTO)
 703  endif
 704endif
 705
 706ifdef NO_NEWT
 707  NO_SLANG=1
 708endif
 709
 710ifndef NO_SLANG
 711  ifneq ($(feature-libslang), 1)
 712    ifneq ($(feature-libslang-include-subdir), 1)
 713      msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
 714      NO_SLANG := 1
 715    else
 716      CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
 717    endif
 718  endif
 719  ifndef NO_SLANG
 720    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
 721    CFLAGS += -DHAVE_SLANG_SUPPORT
 722    EXTLIBS += -lslang
 723    $(call detected,CONFIG_SLANG)
 724  endif
 725endif
 726
 727ifndef NO_GTK2
 728  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
 729  ifneq ($(feature-gtk2), 1)
 730    msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
 731    NO_GTK2 := 1
 732  else
 733    ifeq ($(feature-gtk2-infobar), 1)
 734      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
 735    endif
 736    CFLAGS += -DHAVE_GTK2_SUPPORT
 737    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
 738    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
 739    EXTLIBS += -ldl
 740  endif
 741endif
 742
 743ifdef NO_LIBPERL
 744  CFLAGS += -DNO_LIBPERL
 745else
 746  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
 747  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
 748  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
 749  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
 750  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
 751  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
 752  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 753
 754  ifneq ($(feature-libperl), 1)
 755    CFLAGS += -DNO_LIBPERL
 756    NO_LIBPERL := 1
 757    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
 758  else
 759    LDFLAGS += $(PERL_EMBED_LDFLAGS)
 760    EXTLIBS += $(PERL_EMBED_LIBADD)
 761    CFLAGS += -DHAVE_LIBPERL_SUPPORT
 762    $(call detected,CONFIG_LIBPERL)
 763  endif
 764endif
 765
 766ifeq ($(feature-timerfd), 1)
 767  CFLAGS += -DHAVE_TIMERFD_SUPPORT
 768else
 769  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
 770endif
 771
 772disable-python = $(eval $(disable-python_code))
 773define disable-python_code
 774  CFLAGS += -DNO_LIBPYTHON
 775  $(warning $1)
 776  NO_LIBPYTHON := 1
 777endef
 778
 779ifdef NO_LIBPYTHON
 780  $(call disable-python,Python support disabled by user)
 781else
 782
 783  ifndef PYTHON
 784    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
 785  else
 786    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
 787
 788    ifndef PYTHON_CONFIG
 789      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
 790    else
 791
 792      ifneq ($(feature-libpython), 1)
 793        $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
 794      else
 795         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
 796         EXTLIBS += $(PYTHON_EMBED_LIBADD)
 797         LANG_BINDINGS += $(obj-perf)python/perf.so
 798         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
 799         $(call detected,CONFIG_LIBPYTHON)
 800      endif
 801    endif
 802  endif
 803endif
 804
 805ifeq ($(feature-libbfd), 1)
 806  EXTLIBS += -lbfd -lopcodes
 807else
 808  # we are on a system that requires -liberty and (maybe) -lz
 809  # to link against -lbfd; test each case individually here
 810
 811  # call all detections now so we get correct
 812  # status in VF output
 813  $(call feature_check,libbfd-liberty)
 814  $(call feature_check,libbfd-liberty-z)
 815
 816  ifeq ($(feature-libbfd-liberty), 1)
 817    EXTLIBS += -lbfd -lopcodes -liberty
 818    FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
 819  else
 820    ifeq ($(feature-libbfd-liberty-z), 1)
 821      EXTLIBS += -lbfd -lopcodes -liberty -lz
 822      FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
 823    endif
 824  endif
 825  $(call feature_check,disassembler-four-args)
 826endif
 827
 828ifdef NO_DEMANGLE
 829  CFLAGS += -DNO_DEMANGLE
 830else
 831  ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
 832    EXTLIBS += -liberty
 833  else
 834    ifeq ($(filter -liberty,$(EXTLIBS)),)
 835      $(call feature_check,cplus-demangle)
 836
 837      # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
 838      # or any of 'bfd iberty z' trinity
 839      ifeq ($(feature-cplus-demangle), 1)
 840        EXTLIBS += -liberty
 841      else
 842        msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
 843        CFLAGS += -DNO_DEMANGLE
 844      endif
 845    endif
 846  endif
 847
 848  ifneq ($(filter -liberty,$(EXTLIBS)),)
 849    CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 850  endif
 851endif
 852
 853ifneq ($(filter -lbfd,$(EXTLIBS)),)
 854  CFLAGS += -DHAVE_LIBBFD_SUPPORT
 855endif
 856
 857ifndef NO_ZLIB
 858  ifeq ($(feature-zlib), 1)
 859    CFLAGS += -DHAVE_ZLIB_SUPPORT
 860    EXTLIBS += -lz
 861    $(call detected,CONFIG_ZLIB)
 862  else
 863    NO_ZLIB := 1
 864  endif
 865endif
 866
 867ifndef NO_LZMA
 868  ifeq ($(feature-lzma), 1)
 869    CFLAGS += -DHAVE_LZMA_SUPPORT
 870    EXTLIBS += -llzma
 871    $(call detected,CONFIG_LZMA)
 872  else
 873    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
 874    NO_LZMA := 1
 875  endif
 876endif
 877
 878ifndef NO_LIBZSTD
 879  ifeq ($(feature-libzstd), 1)
 880    CFLAGS += -DHAVE_ZSTD_SUPPORT
 881    CFLAGS += $(LIBZSTD_CFLAGS)
 882    LDFLAGS += $(LIBZSTD_LDFLAGS)
 883    EXTLIBS += -lzstd
 884    $(call detected,CONFIG_ZSTD)
 885  else
 886    msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
 887    NO_LIBZSTD := 1
 888  endif
 889endif
 890
 891ifndef NO_LIBCAP
 892  ifeq ($(feature-libcap), 1)
 893    CFLAGS += -DHAVE_LIBCAP_SUPPORT
 894    EXTLIBS += -lcap
 895    $(call detected,CONFIG_LIBCAP)
 896  else
 897    msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
 898    NO_LIBCAP := 1
 899  endif
 900endif
 901
 902ifndef NO_BACKTRACE
 903  ifeq ($(feature-backtrace), 1)
 904    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
 905  endif
 906endif
 907
 908ifndef NO_LIBNUMA
 909  ifeq ($(feature-libnuma), 0)
 910    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
 911    NO_LIBNUMA := 1
 912  else
 913    ifeq ($(feature-numa_num_possible_cpus), 0)
 914      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
 915      NO_LIBNUMA := 1
 916    else
 917      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
 918      EXTLIBS += -lnuma
 919      $(call detected,CONFIG_NUMA)
 920    endif
 921  endif
 922endif
 923
 924ifdef HAVE_KVM_STAT_SUPPORT
 925    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
 926endif
 927
 928ifeq ($(feature-disassembler-four-args), 1)
 929    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
 930endif
 931
 932ifeq (${IS_64_BIT}, 1)
 933  ifndef NO_PERF_READ_VDSO32
 934    $(call feature_check,compile-32)
 935    ifeq ($(feature-compile-32), 1)
 936      CFLAGS += -DHAVE_PERF_READ_VDSO32
 937    else
 938      NO_PERF_READ_VDSO32 := 1
 939    endif
 940  endif
 941  ifneq ($(SRCARCH), x86)
 942    NO_PERF_READ_VDSOX32 := 1
 943  endif
 944  ifndef NO_PERF_READ_VDSOX32
 945    $(call feature_check,compile-x32)
 946    ifeq ($(feature-compile-x32), 1)
 947      CFLAGS += -DHAVE_PERF_READ_VDSOX32
 948    else
 949      NO_PERF_READ_VDSOX32 := 1
 950    endif
 951  endif
 952else
 953  NO_PERF_READ_VDSO32 := 1
 954  NO_PERF_READ_VDSOX32 := 1
 955endif
 956
 957ifndef NO_LIBBABELTRACE
 958  $(call feature_check,libbabeltrace)
 959  ifeq ($(feature-libbabeltrace), 1)
 960    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
 961    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
 962    EXTLIBS += -lbabeltrace-ctf
 963    $(call detected,CONFIG_LIBBABELTRACE)
 964  else
 965    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
 966  endif
 967endif
 968
 969ifndef NO_AUXTRACE
 970  ifeq ($(SRCARCH),x86)
 971    ifeq ($(feature-get_cpuid), 0)
 972      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
 973      NO_AUXTRACE := 1
 974    endif
 975  endif
 976  ifndef NO_AUXTRACE
 977    $(call detected,CONFIG_AUXTRACE)
 978    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
 979  endif
 980endif
 981
 982ifndef NO_JVMTI
 983  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
 984    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
 985  else
 986    ifneq (,$(wildcard /usr/sbin/alternatives))
 987      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
 988    endif
 989  endif
 990  ifndef JDIR
 991    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
 992    NO_JVMTI := 1
 993  endif
 994endif
 995
 996ifndef NO_JVMTI
 997  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
 998  $(call feature_check,jvmti)
 999  ifeq ($(feature-jvmti), 1)
1000    $(call detected_var,JDIR)
1001    ifndef NO_JVMTI_CMLR
1002      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1003      $(call feature_check,jvmti-cmlr)
1004      ifeq ($(feature-jvmti-cmlr), 1)
1005        CFLAGS += -DHAVE_JVMTI_CMLR
1006      endif
1007    endif # NO_JVMTI_CMLR
1008  else
1009    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1010    NO_JVMTI := 1
1011  endif
1012endif
1013
1014USE_CXX = 0
1015USE_CLANGLLVM = 0
1016ifdef LIBCLANGLLVM
1017  $(call feature_check,cxx)
1018  ifneq ($(feature-cxx), 1)
1019    msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1020  else
1021    $(call feature_check,llvm)
1022    $(call feature_check,llvm-version)
1023    ifneq ($(feature-llvm), 1)
1024      msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1025    else
1026      $(call feature_check,clang)
1027      ifneq ($(feature-clang), 1)
1028        msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1029      else
1030        CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1031        CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1032        $(call detected,CONFIG_CXX)
1033        $(call detected,CONFIG_CLANGLLVM)
1034	USE_CXX = 1
1035	USE_LLVM = 1
1036	USE_CLANG = 1
1037        ifneq ($(feature-llvm-version),1)
1038          msg := $(warning This version of LLVM is not tested. May cause build errors)
1039        endif
1040      endif
1041    endif
1042  endif
1043endif
1044
1045ifdef LIBPFM4
1046  $(call feature_check,libpfm4)
1047  ifeq ($(feature-libpfm4), 1)
1048    CFLAGS += -DHAVE_LIBPFM
1049    EXTLIBS += -lpfm
1050    ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1051    $(call detected,CONFIG_LIBPFM4)
1052  else
1053    msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1054    NO_LIBPFM4 := 1
1055  endif
1056endif
1057
1058# Among the variables below, these:
1059#   perfexecdir
1060#   perf_include_dir
1061#   perf_examples_dir
1062#   template_dir
1063#   mandir
1064#   infodir
1065#   htmldir
1066#   ETC_PERFCONFIG (but not sysconfdir)
1067# can be specified as a relative path some/where/else;
1068# this is interpreted as relative to $(prefix) and "perf" at
1069# runtime figures out where they are based on the path to the executable.
1070# This can help installing the suite in a relocatable way.
1071
1072# Make the path relative to DESTDIR, not to prefix
1073ifndef DESTDIR
1074prefix ?= $(HOME)
1075endif
1076bindir_relative = bin
1077bindir = $(abspath $(prefix)/$(bindir_relative))
1078mandir = share/man
1079infodir = share/info
1080perfexecdir = libexec/perf-core
1081perf_include_dir = lib/perf/include
1082perf_examples_dir = lib/perf/examples
1083sharedir = $(prefix)/share
1084template_dir = share/perf-core/templates
1085STRACE_GROUPS_DIR = share/perf-core/strace/groups
1086htmldir = share/doc/perf-doc
1087tipdir = share/doc/perf-tip
1088srcdir = $(srctree)/tools/perf
1089ifeq ($(prefix),/usr)
1090sysconfdir = /etc
1091ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1092else
1093sysconfdir = $(prefix)/etc
1094ETC_PERFCONFIG = etc/perfconfig
1095endif
1096ifndef lib
1097ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1098lib = lib64
1099else
1100lib = lib
1101endif
1102endif # lib
1103libdir = $(prefix)/$(lib)
1104
1105# Shell quote (do not use $(call) to accommodate ancient setups);
1106ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1107STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1108DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1109bindir_SQ = $(subst ','\'',$(bindir))
1110mandir_SQ = $(subst ','\'',$(mandir))
1111infodir_SQ = $(subst ','\'',$(infodir))
1112perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1113perf_include_dir_SQ = $(subst ','\'',$(perf_include_dir))
1114perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1115template_dir_SQ = $(subst ','\'',$(template_dir))
1116htmldir_SQ = $(subst ','\'',$(htmldir))
1117tipdir_SQ = $(subst ','\'',$(tipdir))
1118prefix_SQ = $(subst ','\'',$(prefix))
1119sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1120libdir_SQ = $(subst ','\'',$(libdir))
1121srcdir_SQ = $(subst ','\'',$(srcdir))
1122
1123ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1124perfexec_instdir = $(perfexecdir)
1125perf_include_instdir = $(perf_include_dir)
1126perf_examples_instdir = $(perf_examples_dir)
1127STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1128tip_instdir = $(tipdir)
1129else
1130perfexec_instdir = $(prefix)/$(perfexecdir)
1131perf_include_instdir = $(prefix)/$(perf_include_dir)
1132perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1133STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1134tip_instdir = $(prefix)/$(tipdir)
1135endif
1136perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1137perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1138perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1139STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1140tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1141
1142# If we install to $(HOME) we keep the traceevent default:
1143# $(HOME)/.traceevent/plugins
1144# Otherwise we install plugins into the global $(libdir).
1145ifdef DESTDIR
1146plugindir=$(libdir)/traceevent/plugins
1147plugindir_SQ= $(subst ','\'',$(plugindir))
1148endif
1149
1150print_var = $(eval $(print_var_code)) $(info $(MSG))
1151define print_var_code
1152    MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
1153endef
1154
1155ifeq ($(VF),1)
1156  # Display EXTRA features which are detected manualy
1157  # from here with feature_check call and thus cannot
1158  # be partof global state output.
1159  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),))
1160  $(call print_var,prefix)
1161  $(call print_var,bindir)
1162  $(call print_var,libdir)
1163  $(call print_var,sysconfdir)
1164  $(call print_var,LIBUNWIND_DIR)
1165  $(call print_var,LIBDW_DIR)
1166  $(call print_var,JDIR)
1167
1168  ifeq ($(dwarf-post-unwind),1)
1169    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
1170  endif
1171  $(info )
1172endif
1173
1174$(call detected_var,bindir_SQ)
1175$(call detected_var,PYTHON_WORD)
1176ifneq ($(OUTPUT),)
1177$(call detected_var,OUTPUT)
1178endif
1179$(call detected_var,htmldir_SQ)
1180$(call detected_var,infodir_SQ)
1181$(call detected_var,mandir_SQ)
1182$(call detected_var,ETC_PERFCONFIG_SQ)
1183$(call detected_var,STRACE_GROUPS_DIR_SQ)
1184$(call detected_var,prefix_SQ)
1185$(call detected_var,perfexecdir_SQ)
1186$(call detected_var,perf_include_dir_SQ)
1187$(call detected_var,perf_examples_dir_SQ)
1188$(call detected_var,tipdir_SQ)
1189$(call detected_var,srcdir_SQ)
1190$(call detected_var,LIBDIR)
1191$(call detected_var,GTK_CFLAGS)
1192$(call detected_var,PERL_EMBED_CCOPTS)
1193$(call detected_var,PYTHON_EMBED_CCOPTS)