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) $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))
  20HOSTCFLAGS := $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))
  21
  22# Enabled Wthread-safety analysis for clang builds.
  23ifeq ($(CC_NO_CLANG), 0)
  24  CFLAGS += -Wthread-safety
  25endif
  26
  27include $(srctree)/tools/scripts/Makefile.arch
  28
  29$(call detected_var,SRCARCH)
  30
  31NO_PERF_REGS := 1
  32
  33ifneq ($(NO_SYSCALL_TABLE),1)
  34  NO_SYSCALL_TABLE := 1
  35
  36  ifeq ($(SRCARCH),x86)
  37    ifeq (${IS_64_BIT}, 1)
  38      NO_SYSCALL_TABLE := 0
  39    endif
  40  else
  41    ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc arm64 s390 mips))
  42      NO_SYSCALL_TABLE := 0
  43    endif
  44  endif
  45
  46  ifneq ($(NO_SYSCALL_TABLE),1)
  47    CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
  48  endif
  49endif
  50
  51# Additional ARCH settings for ppc
  52ifeq ($(SRCARCH),powerpc)
  53  NO_PERF_REGS := 0
  54  CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
  55  LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
  56endif
  57
  58# Additional ARCH settings for x86
  59ifeq ($(SRCARCH),x86)
  60  $(call detected,CONFIG_X86)
  61  ifeq (${IS_64_BIT}, 1)
  62    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
  63    ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
  64    LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
  65    $(call detected,CONFIG_X86_64)
  66  else
  67    LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
  68  endif
  69  NO_PERF_REGS := 0
  70endif
  71
  72ifeq ($(SRCARCH),arm)
  73  NO_PERF_REGS := 0
  74  LIBUNWIND_LIBS = -lunwind -lunwind-arm
  75endif
  76
  77ifeq ($(SRCARCH),arm64)
  78  NO_PERF_REGS := 0
  79  CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
  80  LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
  81endif
  82
  83ifeq ($(SRCARCH),riscv)
  84  NO_PERF_REGS := 0
  85endif
  86
  87ifeq ($(SRCARCH),csky)
  88  NO_PERF_REGS := 0
  89endif
  90
  91ifeq ($(ARCH),s390)
  92  NO_PERF_REGS := 0
  93  CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
  94endif
  95
  96ifeq ($(ARCH),mips)
  97  NO_PERF_REGS := 0
  98  CFLAGS += -I$(OUTPUT)arch/mips/include/generated
  99  LIBUNWIND_LIBS = -lunwind -lunwind-mips
 100endif
 101
 102ifeq ($(NO_PERF_REGS),0)
 103  $(call detected,CONFIG_PERF_REGS)
 104endif
 105
 106# So far there's only x86 and arm libdw unwind support merged in perf.
 107# Disable it on all other architectures in case libdw unwind
 108# support is detected in system. Add supported architectures
 109# to the check.
 110ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv))
 111  NO_LIBDW_DWARF_UNWIND := 1
 112endif
 113
 114ifeq ($(LIBUNWIND_LIBS),)
 115  NO_LIBUNWIND := 1
 116endif
 117#
 118# For linking with debug library, run like:
 119#
 120#   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
 121#
 122
 123libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
 124define libunwind_arch_set_flags_code
 125  FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
 126  FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
 127endef
 128
 129ifdef LIBUNWIND_DIR
 130  LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
 131  LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
 132  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
 133  $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
 134endif
 135
 136# Set per-feature check compilation flags
 137FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
 138FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
 139FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
 140FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
 141
 142FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
 143FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
 144FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
 145FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
 146
 147FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
 148
 149ifdef CSINCLUDES
 150  LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
 151endif
 152OPENCSDLIBS := -lopencsd_c_api
 153ifeq ($(findstring -static,${LDFLAGS}),-static)
 154  OPENCSDLIBS += -lopencsd -lstdc++
 155endif
 156ifdef CSLIBS
 157  LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
 158endif
 159FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
 160FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
 161
 162ifeq ($(NO_PERF_REGS),0)
 163  CFLAGS += -DHAVE_PERF_REGS_SUPPORT
 164endif
 165
 166# for linking with debug library, run like:
 167# make DEBUG=1 LIBDW_DIR=/opt/libdw/
 168ifdef LIBDW_DIR
 169  LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
 170  LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
 171endif
 172DWARFLIBS := -ldw
 173ifeq ($(findstring -static,${LDFLAGS}),-static)
 174  DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
 175endif
 176FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
 177FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
 178
 179# for linking with debug library, run like:
 180# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
 181ifdef LIBBABELTRACE_DIR
 182  LIBBABELTRACE_CFLAGS  := -I$(LIBBABELTRACE_DIR)/include
 183  LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
 184endif
 185FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
 186FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
 187
 188ifdef LIBZSTD_DIR
 189  LIBZSTD_CFLAGS  := -I$(LIBZSTD_DIR)/lib
 190  LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
 191endif
 192FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
 193FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
 194
 195FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
 196# include ARCH specific config
 197-include $(src-perf)/arch/$(SRCARCH)/Makefile
 198
 199ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 200  CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 201endif
 202
 203include $(srctree)/tools/scripts/utilities.mak
 204
 205ifeq ($(call get-executable,$(FLEX)),)
 206  dummy := $(error Error: $(FLEX) is missing on this system, please install it)
 207endif
 208
 209ifeq ($(call get-executable,$(BISON)),)
 210  dummy := $(error Error: $(BISON) is missing on this system, please install it)
 211endif
 212
 213ifneq ($(OUTPUT),)
 214  ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
 215    BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
 216  endif
 217endif
 218
 219# Treat warnings as errors unless directed not to
 220ifneq ($(WERROR),0)
 221  CORE_CFLAGS += -Werror
 222  CXXFLAGS += -Werror
 223  HOSTCFLAGS += -Werror
 224endif
 225
 226ifndef DEBUG
 227  DEBUG := 0
 228endif
 229
 230ifeq ($(DEBUG),0)
 231ifeq ($(CC_NO_CLANG), 0)
 232  CORE_CFLAGS += -O3
 233else
 234  CORE_CFLAGS += -O6
 235endif
 236endif
 237
 238ifdef PARSER_DEBUG
 239  PARSER_DEBUG_BISON := -t
 240  PARSER_DEBUG_FLEX  := -d
 241  CFLAGS             += -DPARSER_DEBUG
 242  $(call detected_var,PARSER_DEBUG_BISON)
 243  $(call detected_var,PARSER_DEBUG_FLEX)
 244endif
 245
 246# Try different combinations to accommodate systems that only have
 247# python[2][3]-config in weird combinations in the following order of
 248# priority from lowest to highest:
 249#   * python2-config as per pep-0394.
 250#   * python-config
 251#   * python3-config
 252#   * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
 253#
 254PYTHON_AUTO := python-config
 255PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
 256PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
 257PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
 258
 259# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
 260# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
 261ifdef PYTHON
 262  ifndef PYTHON_CONFIG
 263    PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
 264    PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
 265                          $(call $(error $(PYTHON)-config not found)))
 266  endif
 267endif
 268
 269# Select either auto detected python and python-config or use user supplied values if they are
 270# defined. get-executable-or-default fails with an error if the first argument is supplied but
 271# doesn't exist.
 272override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
 273override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG)))
 274
 275grep-libs  = $(filter -l%,$(1))
 276strip-libs  = $(filter-out -l%,$(1))
 277
 278PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
 279
 280# Python 3.8 changed the output of `python-config --ldflags` to not include the
 281# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
 282# libpython fails if that flag is not included in LDFLAGS
 283ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
 284  PYTHON_CONFIG_LDFLAGS := --ldflags --embed
 285else
 286  PYTHON_CONFIG_LDFLAGS := --ldflags
 287endif
 288
 289ifdef PYTHON_CONFIG
 290  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
 291  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
 292  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
 293  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
 294  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
 295  ifeq ($(CC_NO_CLANG), 0)
 296    PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
 297  endif
 298endif
 299
 300FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
 301FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
 
 
 302
 303FEATURE_CHECK_LDFLAGS-libaio = -lrt
 
 
 
 
 
 304
 305CORE_CFLAGS += -fno-omit-frame-pointer
 306CORE_CFLAGS += -ggdb3
 307CORE_CFLAGS += -funwind-tables
 308CORE_CFLAGS += -Wall
 309CORE_CFLAGS += -Wextra
 310CORE_CFLAGS += -std=gnu11
 311
 312CXXFLAGS += -std=gnu++14 -fno-exceptions -fno-rtti
 313CXXFLAGS += -Wall
 314CXXFLAGS += -fno-omit-frame-pointer
 315CXXFLAGS += -ggdb3
 316CXXFLAGS += -funwind-tables
 317CXXFLAGS += -Wno-strict-aliasing
 318
 319HOSTCFLAGS += -Wall
 320HOSTCFLAGS += -Wextra
 321
 322# Enforce a non-executable stack, as we may regress (again) in the future by
 323# adding assembler files missing the .GNU-stack linker note.
 324LDFLAGS += -Wl,-z,noexecstack
 325
 326EXTLIBS = -lpthread -lrt -lm -ldl
 327
 328ifneq ($(TCMALLOC),)
 329  CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
 330  EXTLIBS += -ltcmalloc
 331endif
 332
 333ifeq ($(FEATURES_DUMP),)
 334# We will display at the end of this Makefile.config, using $(call feature_display_entries),
 335# as we may retry some feature detection here.
 336  FEATURE_DISPLAY_DEFERRED := 1
 337include $(srctree)/tools/build/Makefile.feature
 338else
 339include $(FEATURES_DUMP)
 340endif
 341
 342ifeq ($(feature-stackprotector-all), 1)
 343  CORE_CFLAGS += -fstack-protector-all
 344endif
 345
 346ifeq ($(DEBUG),0)
 347  ifeq ($(feature-fortify-source), 1)
 348    CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
 349  endif
 350endif
 351
 352INC_FLAGS += -I$(src-perf)/util/include
 353INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
 354INC_FLAGS += -I$(srctree)/tools/include/
 355INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
 356INC_FLAGS += -I$(srctree)/tools/include/uapi
 357INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
 358INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
 
 
 359
 360# $(obj-perf)      for generated common-cmds.h
 361# $(obj-perf)/util for generated bison/flex headers
 362ifneq ($(OUTPUT),)
 363INC_FLAGS += -I$(obj-perf)/util
 364INC_FLAGS += -I$(obj-perf)
 365endif
 366
 367INC_FLAGS += -I$(src-perf)/util
 368INC_FLAGS += -I$(src-perf)
 
 369
 370CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 371
 372CFLAGS   += $(CORE_CFLAGS) $(INC_FLAGS)
 373CXXFLAGS += $(INC_FLAGS)
 374
 375LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
 376
 377ifeq ($(feature-pthread-attr-setaffinity-np), 1)
 378  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
 379endif
 380
 381ifeq ($(feature-pthread-barrier), 1)
 382  CFLAGS += -DHAVE_PTHREAD_BARRIER
 383endif
 384
 385ifndef NO_BIONIC
 386  $(call feature_check,bionic)
 387  ifeq ($(feature-bionic), 1)
 388    BIONIC := 1
 389    CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
 390    CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
 391    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
 392    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
 393  endif
 394endif
 395
 396ifeq ($(feature-eventfd), 1)
 397  CFLAGS += -DHAVE_EVENTFD_SUPPORT
 398endif
 399
 400ifeq ($(feature-get_current_dir_name), 1)
 401  CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
 402endif
 403
 404ifeq ($(feature-gettid), 1)
 405  CFLAGS += -DHAVE_GETTID
 406endif
 407
 408ifeq ($(feature-file-handle), 1)
 409  CFLAGS += -DHAVE_FILE_HANDLE
 410endif
 411
 412ifdef NO_LIBELF
 413  NO_DWARF := 1
 414  NO_DEMANGLE := 1
 415  NO_LIBUNWIND := 1
 416  NO_LIBDW_DWARF_UNWIND := 1
 417  NO_LIBBPF := 1
 418  NO_JVMTI := 1
 419else
 420  ifeq ($(feature-libelf), 0)
 421    ifeq ($(feature-glibc), 1)
 422      LIBC_SUPPORT := 1
 423    endif
 424    ifeq ($(BIONIC),1)
 425      LIBC_SUPPORT := 1
 426    endif
 427    ifeq ($(LIBC_SUPPORT),1)
 428      msg := $(warning No libelf found. Disables 'probe' tool, jvmti and BPF support in 'perf record'. Please install libelf-dev, libelf-devel or elfutils-libelf-devel);
 429
 430      NO_LIBELF := 1
 431      NO_DWARF := 1
 432      NO_DEMANGLE := 1
 433      NO_LIBUNWIND := 1
 434      NO_LIBDW_DWARF_UNWIND := 1
 435      NO_LIBBPF := 1
 436      NO_JVMTI := 1
 437    else
 438      ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
 439        ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
 440          msg := $(error No libasan found, please install libasan);
 441        endif
 442      endif
 443
 444      ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
 445        ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
 446          msg := $(error No libubsan found, please install libubsan);
 447        endif
 448      endif
 449
 450      ifneq ($(filter s% -static%,$(LDFLAGS),),)
 451        msg := $(error No static glibc found, please install glibc-static);
 452      else
 453        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
 454      endif
 455    endif
 456  else
 457    ifndef NO_LIBDW_DWARF_UNWIND
 458      ifneq ($(feature-libdw-dwarf-unwind),1)
 459        NO_LIBDW_DWARF_UNWIND := 1
 460        msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
 461      endif
 462    endif
 463    ifneq ($(feature-dwarf), 1)
 464      ifndef NO_DWARF
 465        msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
 466        NO_DWARF := 1
 467      endif
 468    else
 469      ifneq ($(feature-dwarf_getlocations), 1)
 470        msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
 471      else
 472        CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
 473      endif # dwarf_getlocations
 474    endif # Dwarf support
 475  endif # libelf support
 476endif # NO_LIBELF
 477
 478ifeq ($(feature-glibc), 1)
 479  CFLAGS += -DHAVE_GLIBC_SUPPORT
 480endif
 481
 482ifeq ($(feature-libaio), 1)
 483  ifndef NO_AIO
 484    CFLAGS += -DHAVE_AIO_SUPPORT
 485  endif
 486endif
 487
 488ifdef NO_DWARF
 489  NO_LIBDW_DWARF_UNWIND := 1
 490endif
 491
 492ifeq ($(feature-sched_getcpu), 1)
 493  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
 494endif
 495
 496ifeq ($(feature-setns), 1)
 497  CFLAGS += -DHAVE_SETNS_SUPPORT
 498  $(call detected,CONFIG_SETNS)
 499endif
 500
 501ifdef CORESIGHT
 502  $(call feature_check,libopencsd)
 503  ifeq ($(feature-libopencsd), 1)
 504    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
 505    ifeq ($(feature-reallocarray), 0)
 506      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
 507    endif
 508    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
 509    EXTLIBS += $(OPENCSDLIBS)
 510    $(call detected,CONFIG_LIBOPENCSD)
 511    ifdef CSTRACE_RAW
 512      CFLAGS += -DCS_DEBUG_RAW
 513      ifeq (${CSTRACE_RAW}, packed)
 514        CFLAGS += -DCS_RAW_PACKED
 515      endif
 516    endif
 517  else
 518    dummy := $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
 519  endif
 520endif
 521
 522ifndef NO_LIBELF
 523  CFLAGS += -DHAVE_LIBELF_SUPPORT
 524  EXTLIBS += -lelf
 525  $(call detected,CONFIG_LIBELF)
 526
 
 
 
 
 527  ifeq ($(feature-libelf-getphdrnum), 1)
 528    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
 529  endif
 530
 531  ifeq ($(feature-libelf-gelf_getnote), 1)
 532    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
 533  else
 534    msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
 535  endif
 536
 537  ifeq ($(feature-libelf-getshdrstrndx), 1)
 538    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
 539  endif
 540
 541  ifndef NO_LIBDEBUGINFOD
 542    $(call feature_check,libdebuginfod)
 543    ifeq ($(feature-libdebuginfod), 1)
 544      CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
 545      EXTLIBS += -ldebuginfod
 546    endif
 547  endif
 548
 549  ifndef NO_DWARF
 550    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
 551      msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
 552      NO_DWARF := 1
 553    else
 554      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
 555      LDFLAGS += $(LIBDW_LDFLAGS)
 
 
 
 
 556      EXTLIBS += ${DWARFLIBS}
 557      $(call detected,CONFIG_DWARF)
 558    endif # PERF_HAVE_DWARF_REGS
 559  endif # NO_DWARF
 560
 561  ifndef NO_LIBBPF
 562    ifeq ($(feature-bpf), 1)
 563      CFLAGS += -DHAVE_LIBBPF_SUPPORT
 564      $(call detected,CONFIG_LIBBPF)
 565
 566      # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
 567      $(call feature_check,libbpf)
 568      ifdef LIBBPF_DYNAMIC
 569        ifeq ($(feature-libbpf), 1)
 570          EXTLIBS += -lbpf
 571          $(call detected,CONFIG_LIBBPF_DYNAMIC)
 572
 573          $(call feature_check,libbpf-btf__load_from_kernel_by_id)
 574          ifeq ($(feature-libbpf-btf__load_from_kernel_by_id), 1)
 575            CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
 576          endif
 577          $(call feature_check,libbpf-bpf_prog_load)
 578          ifeq ($(feature-libbpf-bpf_prog_load), 1)
 579            CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
 580          endif
 581          $(call feature_check,libbpf-bpf_object__next_program)
 582          ifeq ($(feature-libbpf-bpf_object__next_program), 1)
 583            CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
 584          endif
 585          $(call feature_check,libbpf-bpf_object__next_map)
 586          ifeq ($(feature-libbpf-bpf_object__next_map), 1)
 587            CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
 588          endif
 589          $(call feature_check,libbpf-bpf_program__set_insns)
 590          ifeq ($(feature-libbpf-bpf_program__set_insns), 1)
 591            CFLAGS += -DHAVE_LIBBPF_BPF_PROGRAM__SET_INSNS
 592          else
 593            dummy := $(error Error: libbpf devel library needs to be >= 0.8.0 to build with LIBBPF_DYNAMIC, update or build statically with the version that comes with the kernel sources);
 594          endif
 595          $(call feature_check,libbpf-btf__raw_data)
 596          ifeq ($(feature-libbpf-btf__raw_data), 1)
 597            CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
 598          endif
 599          $(call feature_check,libbpf-bpf_map_create)
 600          ifeq ($(feature-libbpf-bpf_map_create), 1)
 601            CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
 602          endif
 603        else
 604          dummy := $(error Error: No libbpf devel library found, please install libbpf-devel);
 605        endif
 606      else
 607        # Libbpf will be built as a static library from tools/lib/bpf.
 608	LIBBPF_STATIC := 1
 609	CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
 610        CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
 611        CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
 612        CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
 613        CFLAGS += -DHAVE_LIBBPF_BPF_PROGRAM__SET_INSNS
 614        CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
 615        CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
 616      endif
 617    endif
 618
 619    ifndef NO_DWARF
 620      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 621        CFLAGS += -DHAVE_BPF_PROLOGUE
 622        $(call detected,CONFIG_BPF_PROLOGUE)
 623      else
 624        msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
 625      endif
 626    else
 627      msg := $(warning DWARF support is off, BPF prologue is disabled);
 628    endif
 629
 630  endif # NO_LIBBPF
 631endif # NO_LIBELF
 632
 633ifndef NO_SDT
 634  ifneq ($(feature-sdt), 1)
 635    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
 636    NO_SDT := 1;
 637  else
 638    CFLAGS += -DHAVE_SDT_EVENT
 639    $(call detected,CONFIG_SDT_EVENT)
 640  endif
 641endif
 642
 643ifdef PERF_HAVE_JITDUMP
 644  ifndef NO_LIBELF
 645    $(call detected,CONFIG_JITDUMP)
 646    CFLAGS += -DHAVE_JITDUMP
 647  endif
 648endif
 649
 650ifeq ($(SRCARCH),powerpc)
 651  ifndef NO_DWARF
 652    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
 653  endif
 654endif
 655
 656ifndef NO_LIBUNWIND
 657  have_libunwind :=
 658
 659  $(call feature_check,libunwind-x86)
 660  ifeq ($(feature-libunwind-x86), 1)
 661    $(call detected,CONFIG_LIBUNWIND_X86)
 662    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
 663    LDFLAGS += -lunwind-x86
 664    EXTLIBS_LIBUNWIND += -lunwind-x86
 665    have_libunwind = 1
 666  endif
 667
 668  $(call feature_check,libunwind-aarch64)
 669  ifeq ($(feature-libunwind-aarch64), 1)
 670    $(call detected,CONFIG_LIBUNWIND_AARCH64)
 671    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
 672    LDFLAGS += -lunwind-aarch64
 673    EXTLIBS_LIBUNWIND += -lunwind-aarch64
 674    have_libunwind = 1
 675    $(call feature_check,libunwind-debug-frame-aarch64)
 676    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
 677      msg := $(warning No debug_frame support found in libunwind-aarch64);
 678      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
 679    endif
 680  endif
 681
 682  ifneq ($(feature-libunwind), 1)
 683    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
 684    NO_LOCAL_LIBUNWIND := 1
 685  else
 686    have_libunwind := 1
 687    $(call detected,CONFIG_LOCAL_LIBUNWIND)
 688  endif
 689
 690  ifneq ($(have_libunwind), 1)
 691    NO_LIBUNWIND := 1
 692  endif
 693else
 694  NO_LOCAL_LIBUNWIND := 1
 695endif
 696
 697ifndef NO_LIBBPF
 698  ifneq ($(feature-bpf), 1)
 699    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
 700    NO_LIBBPF := 1
 701  endif
 702endif
 703
 704ifdef BUILD_BPF_SKEL
 705  $(call feature_check,clang-bpf-co-re)
 706  ifeq ($(feature-clang-bpf-co-re), 0)
 707    dummy := $(error Error: clang too old/not installed. Please install recent clang to build with BUILD_BPF_SKEL)
 708  endif
 709  ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
 710    dummy := $(error Error: BPF skeleton support requires libbpf)
 711  endif
 712  $(call detected,CONFIG_PERF_BPF_SKEL)
 713  CFLAGS += -DHAVE_BPF_SKEL
 714endif
 715
 716dwarf-post-unwind := 1
 717dwarf-post-unwind-text := BUG
 718
 719# setup DWARF post unwinder
 720ifdef NO_LIBUNWIND
 721  ifdef NO_LIBDW_DWARF_UNWIND
 722    msg := $(warning Disabling post unwind, no support found.);
 723    dwarf-post-unwind := 0
 724  else
 725    dwarf-post-unwind-text := libdw
 726    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
 727  endif
 728else
 729  dwarf-post-unwind-text := libunwind
 730  $(call detected,CONFIG_LIBUNWIND)
 731  # Enable libunwind support by default.
 732  ifndef NO_LIBDW_DWARF_UNWIND
 733    NO_LIBDW_DWARF_UNWIND := 1
 734  endif
 735endif
 736
 737ifeq ($(dwarf-post-unwind),1)
 738  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
 739  $(call detected,CONFIG_DWARF_UNWIND)
 740else
 741  NO_DWARF_UNWIND := 1
 742endif
 743
 744ifndef NO_LOCAL_LIBUNWIND
 745  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
 746    $(call feature_check,libunwind-debug-frame)
 747    ifneq ($(feature-libunwind-debug-frame), 1)
 748      msg := $(warning No debug_frame support found in libunwind);
 749      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 750    endif
 751  else
 752    # non-ARM has no dwarf_find_debug_frame() function:
 753    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 754  endif
 755  EXTLIBS += $(LIBUNWIND_LIBS)
 756  LDFLAGS += $(LIBUNWIND_LIBS)
 757endif
 758ifeq ($(findstring -static,${LDFLAGS}),-static)
 759  # gcc -static links libgcc_eh which contans piece of libunwind
 760  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
 761endif
 762
 763ifndef NO_LIBUNWIND
 764  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
 765  CFLAGS  += $(LIBUNWIND_CFLAGS)
 766  LDFLAGS += $(LIBUNWIND_LDFLAGS)
 767  EXTLIBS += $(EXTLIBS_LIBUNWIND)
 768endif
 769
 770ifneq ($(NO_LIBTRACEEVENT),1)
 771  ifeq ($(NO_SYSCALL_TABLE),0)
 772    $(call detected,CONFIG_TRACE)
 773  else
 774    ifndef NO_LIBAUDIT
 775      $(call feature_check,libaudit)
 776      ifneq ($(feature-libaudit), 1)
 777        msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
 778        NO_LIBAUDIT := 1
 779      else
 780        CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
 781        EXTLIBS += -laudit
 782        $(call detected,CONFIG_TRACE)
 783      endif
 784    endif
 785  endif
 786endif
 787
 788ifndef NO_LIBCRYPTO
 789  ifneq ($(feature-libcrypto), 1)
 790    msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
 791    NO_LIBCRYPTO := 1
 792  else
 793    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
 794    EXTLIBS += -lcrypto
 795    $(call detected,CONFIG_CRYPTO)
 796  endif
 797endif
 798
 799ifdef NO_NEWT
 800  NO_SLANG=1
 801endif
 802
 803ifndef NO_SLANG
 804  ifneq ($(feature-libslang), 1)
 805    ifneq ($(feature-libslang-include-subdir), 1)
 806      msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
 807      NO_SLANG := 1
 808    else
 809      CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
 810    endif
 811  endif
 812  ifndef NO_SLANG
 813    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
 
 814    CFLAGS += -DHAVE_SLANG_SUPPORT
 815    EXTLIBS += -lslang
 816    $(call detected,CONFIG_SLANG)
 817  endif
 818endif
 819
 820ifdef GTK2
 821  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
 822  $(call feature_check,gtk2)
 823  ifneq ($(feature-gtk2), 1)
 824    msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
 825    NO_GTK2 := 1
 826  else
 827    $(call feature_check,gtk2-infobar)
 828    ifeq ($(feature-gtk2-infobar), 1)
 829      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
 830    endif
 831    CFLAGS += -DHAVE_GTK2_SUPPORT
 832    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
 833    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
 834    EXTLIBS += -ldl
 835  endif
 836endif
 837
 
 
 
 838ifdef NO_LIBPERL
 839  CFLAGS += -DNO_LIBPERL
 840else
 841  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
 842  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
 843  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
 844  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
 845  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
 846  PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
 847  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
 848  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 849
 850  ifneq ($(feature-libperl), 1)
 851    CFLAGS += -DNO_LIBPERL
 852    NO_LIBPERL := 1
 853    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
 854  else
 855    LDFLAGS += $(PERL_EMBED_LDFLAGS)
 856    EXTLIBS += $(PERL_EMBED_LIBADD)
 857    CFLAGS += -DHAVE_LIBPERL_SUPPORT
 858    ifeq ($(CC_NO_CLANG), 0)
 859      CFLAGS += -Wno-compound-token-split-by-macro
 860    endif
 861    $(call detected,CONFIG_LIBPERL)
 862  endif
 863endif
 864
 865ifeq ($(feature-timerfd), 1)
 866  CFLAGS += -DHAVE_TIMERFD_SUPPORT
 867else
 868  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
 869endif
 870
 871disable-python = $(eval $(disable-python_code))
 872define disable-python_code
 873  CFLAGS += -DNO_LIBPYTHON
 874  $(warning $1)
 875  NO_LIBPYTHON := 1
 876endef
 877
 878PYTHON_EXTENSION_SUFFIX := '.so'
 879ifdef NO_LIBPYTHON
 880  $(call disable-python,Python support disabled by user)
 881else
 882
 883  ifndef PYTHON
 884    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
 885  else
 886    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
 887
 888    ifndef PYTHON_CONFIG
 889      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
 890    else
 891
 
 
 
 
 
 
 
 
 892      ifneq ($(feature-libpython), 1)
 893        $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
 894      else
 895         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
 896         EXTLIBS += $(PYTHON_EMBED_LIBADD)
 897         PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
 898         ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
 899           PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
 900           LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
 901	 else
 902           msg := $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent);
 903         endif
 904         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
 905         $(call detected,CONFIG_LIBPYTHON)
 906      endif
 907    endif
 908  endif
 909endif
 910
 911ifneq ($(NO_JEVENTS),1)
 912  ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
 913    NO_JEVENTS := 1
 914  endif
 915endif
 916ifneq ($(NO_JEVENTS),1)
 917  NO_JEVENTS := 0
 918  ifndef PYTHON
 919    $(warning No python interpreter disabling jevent generation)
 920    NO_JEVENTS := 1
 921  else
 922    # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
 923    JEVENTS_PYTHON_GOOD := $(shell $(PYTHON) -c 'import sys;print("1" if(sys.version_info.major >= 3 and sys.version_info.minor >= 6) else "0")' 2> /dev/null)
 924    ifneq ($(JEVENTS_PYTHON_GOOD), 1)
 925      $(warning Python interpreter too old (older than 3.6) disabling jevent generation)
 926      NO_JEVENTS := 1
 
 
 
 
 927    endif
 928  endif
 929endif
 930
 931ifndef NO_LIBBFD
 932  ifeq ($(feature-libbfd), 1)
 933    EXTLIBS += -lbfd -lopcodes
 934  else
 935    # we are on a system that requires -liberty and (maybe) -lz
 936    # to link against -lbfd; test each case individually here
 937
 938    # call all detections now so we get correct
 939    # status in VF output
 940    $(call feature_check,libbfd-liberty)
 941    $(call feature_check,libbfd-liberty-z)
 942
 943    ifeq ($(feature-libbfd-liberty), 1)
 944      EXTLIBS += -lbfd -lopcodes -liberty
 945    else
 946      ifeq ($(feature-libbfd-liberty-z), 1)
 947        EXTLIBS += -lbfd -lopcodes -liberty -lz
 948      endif
 949    endif
 950    $(call feature_check,disassembler-four-args)
 951    $(call feature_check,disassembler-init-styled)
 952  endif
 953
 954  ifeq ($(feature-libbfd-buildid), 1)
 955    CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
 956  else
 957    msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
 
 
 958  endif
 959endif
 960
 961ifdef NO_DEMANGLE
 962  CFLAGS += -DNO_DEMANGLE
 963else
 964  ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
 965    EXTLIBS += -liberty
 
 966  else
 967    ifeq ($(filter -liberty,$(EXTLIBS)),)
 968      $(call feature_check,cplus-demangle)
 969
 970      # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
 971      # or any of 'bfd iberty z' trinity
 972      ifeq ($(feature-cplus-demangle), 1)
 973        EXTLIBS += -liberty
 974      else
 975        msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
 976        CFLAGS += -DNO_DEMANGLE
 
 
 
 977      endif
 978    endif
 979  endif
 980
 981  ifneq ($(filter -liberty,$(EXTLIBS)),)
 982    CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 983  endif
 984endif
 985
 986ifneq ($(filter -lbfd,$(EXTLIBS)),)
 987  CFLAGS += -DHAVE_LIBBFD_SUPPORT
 988endif
 989
 990ifndef NO_ZLIB
 991  ifeq ($(feature-zlib), 1)
 992    CFLAGS += -DHAVE_ZLIB_SUPPORT
 993    EXTLIBS += -lz
 994    $(call detected,CONFIG_ZLIB)
 995  else
 996    NO_ZLIB := 1
 997  endif
 998endif
 999
1000ifndef NO_LZMA
1001  ifeq ($(feature-lzma), 1)
1002    CFLAGS += -DHAVE_LZMA_SUPPORT
1003    EXTLIBS += -llzma
1004    $(call detected,CONFIG_LZMA)
1005  else
1006    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
1007    NO_LZMA := 1
1008  endif
1009endif
1010
1011ifndef NO_LIBZSTD
1012  ifeq ($(feature-libzstd), 1)
1013    CFLAGS += -DHAVE_ZSTD_SUPPORT
1014    CFLAGS += $(LIBZSTD_CFLAGS)
1015    LDFLAGS += $(LIBZSTD_LDFLAGS)
1016    EXTLIBS += -lzstd
1017    $(call detected,CONFIG_ZSTD)
1018  else
1019    msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
1020    NO_LIBZSTD := 1
1021  endif
1022endif
1023
1024ifndef NO_LIBCAP
1025  ifeq ($(feature-libcap), 1)
1026    CFLAGS += -DHAVE_LIBCAP_SUPPORT
1027    EXTLIBS += -lcap
1028    $(call detected,CONFIG_LIBCAP)
1029  else
1030    msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
1031    NO_LIBCAP := 1
1032  endif
1033endif
1034
1035ifndef NO_BACKTRACE
1036  ifeq ($(feature-backtrace), 1)
1037    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1038  endif
1039endif
1040
1041ifndef NO_LIBNUMA
1042  ifeq ($(feature-libnuma), 0)
1043    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
1044    NO_LIBNUMA := 1
1045  else
1046    ifeq ($(feature-numa_num_possible_cpus), 0)
1047      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
1048      NO_LIBNUMA := 1
1049    else
1050      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1051      EXTLIBS += -lnuma
1052      $(call detected,CONFIG_NUMA)
1053    endif
1054  endif
1055endif
1056
1057ifdef HAVE_KVM_STAT_SUPPORT
1058    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1059endif
1060
1061ifeq ($(feature-disassembler-four-args), 1)
1062    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1063endif
1064
1065ifeq ($(feature-disassembler-init-styled), 1)
1066    CFLAGS += -DDISASM_INIT_STYLED
1067endif
1068
1069ifeq (${IS_64_BIT}, 1)
1070  ifndef NO_PERF_READ_VDSO32
1071    $(call feature_check,compile-32)
1072    ifeq ($(feature-compile-32), 1)
1073      CFLAGS += -DHAVE_PERF_READ_VDSO32
1074    else
1075      NO_PERF_READ_VDSO32 := 1
1076    endif
1077  endif
1078  ifneq ($(SRCARCH), x86)
1079    NO_PERF_READ_VDSOX32 := 1
1080  endif
1081  ifndef NO_PERF_READ_VDSOX32
1082    $(call feature_check,compile-x32)
1083    ifeq ($(feature-compile-x32), 1)
1084      CFLAGS += -DHAVE_PERF_READ_VDSOX32
1085    else
1086      NO_PERF_READ_VDSOX32 := 1
1087    endif
1088  endif
1089else
1090  NO_PERF_READ_VDSO32 := 1
1091  NO_PERF_READ_VDSOX32 := 1
1092endif
1093
1094ifndef NO_LIBBABELTRACE
1095  $(call feature_check,libbabeltrace)
1096  ifeq ($(feature-libbabeltrace), 1)
1097    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1098    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1099    EXTLIBS += -lbabeltrace-ctf
1100    $(call detected,CONFIG_LIBBABELTRACE)
1101  else
1102    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
1103  endif
1104endif
1105
1106ifndef NO_AUXTRACE
1107  ifeq ($(SRCARCH),x86)
1108    ifeq ($(feature-get_cpuid), 0)
1109      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1110      NO_AUXTRACE := 1
1111    endif
1112  endif
1113  ifndef NO_AUXTRACE
1114    $(call detected,CONFIG_AUXTRACE)
1115    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1116    ifeq ($(feature-reallocarray), 0)
1117      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1118    endif
1119  endif
1120endif
1121
1122ifndef NO_JVMTI
1123  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1124    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1125  else
1126    ifneq (,$(wildcard /usr/sbin/alternatives))
1127      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')
1128    endif
1129  endif
1130  ifndef JDIR
1131    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1132    NO_JVMTI := 1
1133  endif
1134endif
1135
1136ifndef NO_JVMTI
1137  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1138  $(call feature_check,jvmti)
1139  ifeq ($(feature-jvmti), 1)
1140    $(call detected_var,JDIR)
1141    ifndef NO_JVMTI_CMLR
1142      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1143      $(call feature_check,jvmti-cmlr)
1144      ifeq ($(feature-jvmti-cmlr), 1)
1145        CFLAGS += -DHAVE_JVMTI_CMLR
1146      endif
1147    endif # NO_JVMTI_CMLR
1148  else
1149    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1150    NO_JVMTI := 1
1151  endif
1152endif
1153
1154USE_CXX = 0
1155USE_CLANGLLVM = 0
1156ifdef LIBCLANGLLVM
1157  $(call feature_check,cxx)
1158  ifneq ($(feature-cxx), 1)
1159    msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1160  else
1161    $(call feature_check,llvm)
1162    $(call feature_check,llvm-version)
1163    ifneq ($(feature-llvm), 1)
1164      msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1165    else
1166      $(call feature_check,clang)
1167      ifneq ($(feature-clang), 1)
1168        msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1169      else
1170        CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1171        CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1172        $(call detected,CONFIG_CXX)
1173        $(call detected,CONFIG_CLANGLLVM)
1174	USE_CXX = 1
1175	USE_LLVM = 1
1176	USE_CLANG = 1
1177        ifneq ($(feature-llvm-version),1)
1178          msg := $(warning This version of LLVM is not tested. May cause build errors)
1179        endif
1180      endif
1181    endif
1182  endif
1183endif
1184
1185ifdef LIBPFM4
1186  $(call feature_check,libpfm4)
1187  ifeq ($(feature-libpfm4), 1)
1188    CFLAGS += -DHAVE_LIBPFM
1189    EXTLIBS += -lpfm
1190    ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1191    $(call detected,CONFIG_LIBPFM4)
1192  else
1193    msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1194    NO_LIBPFM4 := 1
1195  endif
1196endif
1197
1198# libtraceevent is a recommended dependency picked up from the system.
1199ifneq ($(NO_LIBTRACEEVENT),1)
1200  $(call feature_check,libtraceevent)
1201  ifeq ($(feature-libtraceevent), 1)
1202    CFLAGS += -DHAVE_LIBTRACEEVENT
1203    EXTLIBS += -ltraceevent
1204    LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent)
1205    LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1206    LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1207    LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1208    LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1209    CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1210    $(call detected,CONFIG_LIBTRACEEVENT)
1211    LIBTRACEEVENT_VERSION_WITH_TEP_FIELD_IS_RELATIVE := $(shell expr 1 \* 255 \* 255 + 5 \* 255 + 0) # 1.5.0
1212    ifeq ($(shell test $(LIBTRACEEVENT_VERSION_CPP) -gt $(LIBTRACEEVENT_VERSION_WITH_TEP_FIELD_IS_RELATIVE); echo $$?),0)
1213      CFLAGS += -DHAVE_LIBTRACEEVENT_TEP_FIELD_IS_RELATIVE
1214    endif
1215  else
1216    dummy := $(warning Warning: libtraceevent is missing limiting functionality, please install libtraceevent-dev/libtraceevent-devel)
1217  endif
1218
1219  $(call feature_check,libtracefs)
1220  ifeq ($(feature-libtracefs), 1)
1221    EXTLIBS += -ltracefs
1222    LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
1223    LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1224    LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1225    LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1226    LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1227    CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1228  endif
1229endif
1230
1231# Among the variables below, these:
1232#   perfexecdir
1233#   libbpf_include_dir
1234#   perf_examples_dir
1235#   template_dir
1236#   mandir
1237#   infodir
1238#   htmldir
1239#   ETC_PERFCONFIG (but not sysconfdir)
1240# can be specified as a relative path some/where/else;
1241# this is interpreted as relative to $(prefix) and "perf" at
1242# runtime figures out where they are based on the path to the executable.
1243# This can help installing the suite in a relocatable way.
1244
1245# Make the path relative to DESTDIR, not to prefix
1246ifndef DESTDIR
1247prefix ?= $(HOME)
1248endif
1249bindir_relative = bin
1250bindir = $(abspath $(prefix)/$(bindir_relative))
1251includedir_relative = include
1252includedir = $(abspath $(prefix)/$(includedir_relative))
1253mandir = share/man
1254infodir = share/info
1255perfexecdir = libexec/perf-core
1256# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1257libbpf_include_dir = /usr/include
1258perf_examples_dir = lib/perf/examples
1259sharedir = $(prefix)/share
1260template_dir = share/perf-core/templates
1261STRACE_GROUPS_DIR = share/perf-core/strace/groups
1262htmldir = share/doc/perf-doc
1263tipdir = share/doc/perf-tip
1264srcdir = $(srctree)/tools/perf
1265ifeq ($(prefix),/usr)
1266sysconfdir = /etc
1267ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1268else
1269sysconfdir = $(prefix)/etc
1270ETC_PERFCONFIG = etc/perfconfig
1271endif
1272ifndef lib
1273ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1274lib = lib64
1275else
1276lib = lib
1277endif
1278endif # lib
1279libdir = $(prefix)/$(lib)
1280
1281# Shell quote (do not use $(call) to accommodate ancient setups);
1282ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1283STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1284DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1285bindir_SQ = $(subst ','\'',$(bindir))
1286includedir_SQ = $(subst ','\'',$(includedir))
1287mandir_SQ = $(subst ','\'',$(mandir))
1288infodir_SQ = $(subst ','\'',$(infodir))
1289perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1290libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1291perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1292template_dir_SQ = $(subst ','\'',$(template_dir))
1293htmldir_SQ = $(subst ','\'',$(htmldir))
1294tipdir_SQ = $(subst ','\'',$(tipdir))
1295prefix_SQ = $(subst ','\'',$(prefix))
1296sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1297libdir_SQ = $(subst ','\'',$(libdir))
1298srcdir_SQ = $(subst ','\'',$(srcdir))
1299
1300ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1301perfexec_instdir = $(perfexecdir)
1302perf_include_instdir = $(libbpf_include_dir)
1303perf_examples_instdir = $(perf_examples_dir)
1304STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1305tip_instdir = $(tipdir)
1306else
1307perfexec_instdir = $(prefix)/$(perfexecdir)
1308perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1309perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1310STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1311tip_instdir = $(prefix)/$(tipdir)
1312endif
1313perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1314perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1315perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1316STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1317tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1318
1319export perfexec_instdir_SQ
 
 
 
 
 
 
1320
1321print_var = $(eval $(print_var_code)) $(info $(MSG))
1322define print_var_code
1323    MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1324endef
1325
1326ifeq ($(feature_display),1)
1327  $(call feature_display_entries)
1328endif
1329
1330ifeq ($(VF),1)
1331  # Display EXTRA features which are detected manualy
1332  # from here with feature_check call and thus cannot
1333  # be partof global state output.
1334  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1335  $(call print_var,prefix)
1336  $(call print_var,bindir)
1337  $(call print_var,libdir)
1338  $(call print_var,sysconfdir)
1339  $(call print_var,LIBUNWIND_DIR)
1340  $(call print_var,LIBDW_DIR)
1341  $(call print_var,JDIR)
1342
1343  ifeq ($(dwarf-post-unwind),1)
1344    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1345  endif
 
1346endif
1347
1348$(info )
1349
1350$(call detected_var,bindir_SQ)
1351$(call detected_var,PYTHON_WORD)
1352ifneq ($(OUTPUT),)
1353$(call detected_var,OUTPUT)
1354endif
1355$(call detected_var,htmldir_SQ)
1356$(call detected_var,infodir_SQ)
1357$(call detected_var,mandir_SQ)
1358$(call detected_var,ETC_PERFCONFIG_SQ)
1359$(call detected_var,STRACE_GROUPS_DIR_SQ)
1360$(call detected_var,prefix_SQ)
1361$(call detected_var,perfexecdir_SQ)
1362$(call detected_var,libbpf_include_dir_SQ)
1363$(call detected_var,perf_examples_dir_SQ)
1364$(call detected_var,tipdir_SQ)
1365$(call detected_var,srcdir_SQ)
1366$(call detected_var,LIBDIR)
1367$(call detected_var,GTK_CFLAGS)
1368$(call detected_var,PERL_EMBED_CCOPTS)
1369$(call detected_var,PYTHON_EMBED_CCOPTS)
1370ifneq ($(BISON_FILE_PREFIX_MAP),)
1371$(call detected_var,BISON_FILE_PREFIX_MAP)
1372endif
1373
1374# re-generate FEATURE-DUMP as we may have called feature_check, found out
1375# extra libraries to add to LDFLAGS of some other test and then redo those
1376# tests.
1377$(shell rm -f $(FEATURE_DUMP_FILENAME))
1378$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))