tools/perf/Makefile.config at v5.10-rc3 · tjh.dev/kernel

tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
kernel / tools / perf / Makefile.config
at v5.10-rc3 1201 lines 36 kB view raw
   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))
  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 python2 or python
 227# aren't found, then python3 is used.
 228PYTHON_AUTO := python
 229PYTHON_AUTO := $(if $(call get-executable,python3),python3,$(PYTHON_AUTO))
 230PYTHON_AUTO := $(if $(call get-executable,python),python,$(PYTHON_AUTO))
 231PYTHON_AUTO := $(if $(call get-executable,python2),python2,$(PYTHON_AUTO))
 232override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON_AUTO))
 233PYTHON_AUTO_CONFIG := \
 234  $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
 235override PYTHON_CONFIG := \
 236  $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO_CONFIG))
 237
 238grep-libs  = $(filter -l%,$(1))
 239strip-libs  = $(filter-out -l%,$(1))
 240
 241PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
 242
 243# Python 3.8 changed the output of `python-config --ldflags` to not include the
 244# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
 245# libpython fails if that flag is not included in LDFLAGS
 246ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
 247  PYTHON_CONFIG_LDFLAGS := --ldflags --embed
 248else
 249  PYTHON_CONFIG_LDFLAGS := --ldflags
 250endif
 251
 252ifdef PYTHON_CONFIG
 253  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
 254  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
 255  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
 256  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
 257  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
 258endif
 259
 260FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
 261FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
 262FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
 263FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
 264
 265FEATURE_CHECK_LDFLAGS-libaio = -lrt
 266
 267FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
 268
 269CORE_CFLAGS += -fno-omit-frame-pointer
 270CORE_CFLAGS += -ggdb3
 271CORE_CFLAGS += -funwind-tables
 272CORE_CFLAGS += -Wall
 273CORE_CFLAGS += -Wextra
 274CORE_CFLAGS += -std=gnu99
 275
 276CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
 277CXXFLAGS += -Wall
 278CXXFLAGS += -fno-omit-frame-pointer
 279CXXFLAGS += -ggdb3
 280CXXFLAGS += -funwind-tables
 281CXXFLAGS += -Wno-strict-aliasing
 282
 283# Enforce a non-executable stack, as we may regress (again) in the future by
 284# adding assembler files missing the .GNU-stack linker note.
 285LDFLAGS += -Wl,-z,noexecstack
 286
 287EXTLIBS = -lpthread -lrt -lm -ldl
 288
 289ifneq ($(TCMALLOC),)
 290  CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
 291  EXTLIBS += -ltcmalloc
 292endif
 293
 294ifeq ($(FEATURES_DUMP),)
 295include $(srctree)/tools/build/Makefile.feature
 296else
 297include $(FEATURES_DUMP)
 298endif
 299
 300ifeq ($(feature-stackprotector-all), 1)
 301  CORE_CFLAGS += -fstack-protector-all
 302endif
 303
 304ifeq ($(DEBUG),0)
 305  ifeq ($(feature-fortify-source), 1)
 306    CORE_CFLAGS += -D_FORTIFY_SOURCE=2
 307  endif
 308endif
 309
 310INC_FLAGS += -I$(srctree)/tools/lib/perf/include
 311INC_FLAGS += -I$(src-perf)/util/include
 312INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
 313INC_FLAGS += -I$(srctree)/tools/include/
 314INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
 315INC_FLAGS += -I$(srctree)/tools/include/uapi
 316INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
 317INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
 318
 319# $(obj-perf)      for generated common-cmds.h
 320# $(obj-perf)/util for generated bison/flex headers
 321ifneq ($(OUTPUT),)
 322INC_FLAGS += -I$(obj-perf)/util
 323INC_FLAGS += -I$(obj-perf)
 324endif
 325
 326INC_FLAGS += -I$(src-perf)/util
 327INC_FLAGS += -I$(src-perf)
 328INC_FLAGS += -I$(srctree)/tools/lib/
 329
 330CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 331
 332CFLAGS   += $(CORE_CFLAGS) $(INC_FLAGS)
 333CXXFLAGS += $(INC_FLAGS)
 334
 335LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
 336
 337ifeq ($(feature-sync-compare-and-swap), 1)
 338  CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
 339endif
 340
 341ifeq ($(feature-pthread-attr-setaffinity-np), 1)
 342  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
 343endif
 344
 345ifeq ($(feature-pthread-barrier), 1)
 346  CFLAGS += -DHAVE_PTHREAD_BARRIER
 347endif
 348
 349ifndef NO_BIONIC
 350  $(call feature_check,bionic)
 351  ifeq ($(feature-bionic), 1)
 352    BIONIC := 1
 353    CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
 354    CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
 355    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
 356    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
 357  endif
 358endif
 359
 360ifeq ($(feature-eventfd), 1)
 361  CFLAGS += -DHAVE_EVENTFD_SUPPORT
 362endif
 363
 364ifeq ($(feature-get_current_dir_name), 1)
 365  CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
 366endif
 367
 368ifeq ($(feature-gettid), 1)
 369  CFLAGS += -DHAVE_GETTID
 370endif
 371
 372ifeq ($(feature-file-handle), 1)
 373  CFLAGS += -DHAVE_FILE_HANDLE
 374endif
 375
 376ifdef NO_LIBELF
 377  NO_DWARF := 1
 378  NO_DEMANGLE := 1
 379  NO_LIBUNWIND := 1
 380  NO_LIBDW_DWARF_UNWIND := 1
 381  NO_LIBBPF := 1
 382  NO_JVMTI := 1
 383else
 384  ifeq ($(feature-libelf), 0)
 385    ifeq ($(feature-glibc), 1)
 386      LIBC_SUPPORT := 1
 387    endif
 388    ifeq ($(BIONIC),1)
 389      LIBC_SUPPORT := 1
 390    endif
 391    ifeq ($(LIBC_SUPPORT),1)
 392      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);
 393
 394      NO_LIBELF := 1
 395      NO_DWARF := 1
 396      NO_DEMANGLE := 1
 397      NO_LIBUNWIND := 1
 398      NO_LIBDW_DWARF_UNWIND := 1
 399      NO_LIBBPF := 1
 400      NO_JVMTI := 1
 401    else
 402      ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
 403        ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
 404          msg := $(error No libasan found, please install libasan);
 405        endif
 406      endif
 407
 408      ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
 409        ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
 410          msg := $(error No libubsan found, please install libubsan);
 411        endif
 412      endif
 413
 414      ifneq ($(filter s% -static%,$(LDFLAGS),),)
 415        msg := $(error No static glibc found, please install glibc-static);
 416      else
 417        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
 418      endif
 419    endif
 420  else
 421    ifndef NO_LIBDW_DWARF_UNWIND
 422      ifneq ($(feature-libdw-dwarf-unwind),1)
 423        NO_LIBDW_DWARF_UNWIND := 1
 424        msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
 425      endif
 426    endif
 427    ifneq ($(feature-dwarf), 1)
 428      ifndef NO_DWARF
 429        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);
 430        NO_DWARF := 1
 431      endif
 432    else
 433      ifneq ($(feature-dwarf_getlocations), 1)
 434        msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
 435      else
 436        CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
 437      endif # dwarf_getlocations
 438    endif # Dwarf support
 439  endif # libelf support
 440endif # NO_LIBELF
 441
 442ifeq ($(feature-glibc), 1)
 443  CFLAGS += -DHAVE_GLIBC_SUPPORT
 444endif
 445
 446ifeq ($(feature-libaio), 1)
 447  ifndef NO_AIO
 448    CFLAGS += -DHAVE_AIO_SUPPORT
 449  endif
 450endif
 451
 452ifdef NO_DWARF
 453  NO_LIBDW_DWARF_UNWIND := 1
 454endif
 455
 456ifeq ($(feature-sched_getcpu), 1)
 457  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
 458endif
 459
 460ifeq ($(feature-setns), 1)
 461  CFLAGS += -DHAVE_SETNS_SUPPORT
 462  $(call detected,CONFIG_SETNS)
 463endif
 464
 465ifdef CORESIGHT
 466  $(call feature_check,libopencsd)
 467  ifeq ($(feature-libopencsd), 1)
 468    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
 469    ifeq ($(feature-reallocarray), 0)
 470      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
 471    endif
 472    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
 473    EXTLIBS += $(OPENCSDLIBS)
 474    $(call detected,CONFIG_LIBOPENCSD)
 475    ifdef CSTRACE_RAW
 476      CFLAGS += -DCS_DEBUG_RAW
 477      ifeq (${CSTRACE_RAW}, packed)
 478        CFLAGS += -DCS_RAW_PACKED
 479      endif
 480    endif
 481  endif
 482endif
 483
 484ifndef NO_LIBELF
 485  CFLAGS += -DHAVE_LIBELF_SUPPORT
 486  EXTLIBS += -lelf
 487  $(call detected,CONFIG_LIBELF)
 488
 489  ifeq ($(feature-libelf-getphdrnum), 1)
 490    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
 491  endif
 492
 493  ifeq ($(feature-libelf-gelf_getnote), 1)
 494    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
 495  else
 496    msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
 497  endif
 498
 499  ifeq ($(feature-libelf-getshdrstrndx), 1)
 500    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
 501  endif
 502
 503  ifndef NO_LIBDEBUGINFOD
 504    $(call feature_check,libdebuginfod)
 505    ifeq ($(feature-libdebuginfod), 1)
 506      CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
 507      EXTLIBS += -ldebuginfod
 508    endif
 509  endif
 510
 511  ifndef NO_DWARF
 512    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
 513      msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
 514      NO_DWARF := 1
 515    else
 516      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
 517      LDFLAGS += $(LIBDW_LDFLAGS)
 518      EXTLIBS += ${DWARFLIBS}
 519      $(call detected,CONFIG_DWARF)
 520    endif # PERF_HAVE_DWARF_REGS
 521  endif # NO_DWARF
 522
 523  ifndef NO_LIBBPF
 524    ifeq ($(feature-bpf), 1)
 525      CFLAGS += -DHAVE_LIBBPF_SUPPORT
 526      $(call detected,CONFIG_LIBBPF)
 527
 528      # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
 529      $(call feature_check,libbpf)
 530      ifdef LIBBPF_DYNAMIC
 531        ifeq ($(feature-libbpf), 1)
 532          EXTLIBS += -lbpf
 533        else
 534          dummy := $(error Error: No libbpf devel library found, please install libbpf-devel);
 535        endif
 536      endif
 537    endif
 538
 539    ifndef NO_DWARF
 540      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 541        CFLAGS += -DHAVE_BPF_PROLOGUE
 542        $(call detected,CONFIG_BPF_PROLOGUE)
 543      else
 544        msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
 545      endif
 546    else
 547      msg := $(warning DWARF support is off, BPF prologue is disabled);
 548    endif
 549
 550  endif # NO_LIBBPF
 551endif # NO_LIBELF
 552
 553ifndef NO_SDT
 554  ifneq ($(feature-sdt), 1)
 555    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
 556    NO_SDT := 1;
 557  else
 558    CFLAGS += -DHAVE_SDT_EVENT
 559    $(call detected,CONFIG_SDT_EVENT)
 560  endif
 561endif
 562
 563ifdef PERF_HAVE_JITDUMP
 564  ifndef NO_LIBELF
 565    $(call detected,CONFIG_JITDUMP)
 566    CFLAGS += -DHAVE_JITDUMP
 567  endif
 568endif
 569
 570ifeq ($(SRCARCH),powerpc)
 571  ifndef NO_DWARF
 572    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
 573  endif
 574endif
 575
 576ifndef NO_LIBUNWIND
 577  have_libunwind :=
 578
 579  $(call feature_check,libunwind-x86)
 580  ifeq ($(feature-libunwind-x86), 1)
 581    $(call detected,CONFIG_LIBUNWIND_X86)
 582    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
 583    LDFLAGS += -lunwind-x86
 584    EXTLIBS_LIBUNWIND += -lunwind-x86
 585    have_libunwind = 1
 586  endif
 587
 588  $(call feature_check,libunwind-aarch64)
 589  ifeq ($(feature-libunwind-aarch64), 1)
 590    $(call detected,CONFIG_LIBUNWIND_AARCH64)
 591    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
 592    LDFLAGS += -lunwind-aarch64
 593    EXTLIBS_LIBUNWIND += -lunwind-aarch64
 594    have_libunwind = 1
 595    $(call feature_check,libunwind-debug-frame-aarch64)
 596    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
 597      msg := $(warning No debug_frame support found in libunwind-aarch64);
 598      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
 599    endif
 600  endif
 601
 602  ifneq ($(feature-libunwind), 1)
 603    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
 604    NO_LOCAL_LIBUNWIND := 1
 605  else
 606    have_libunwind := 1
 607    $(call detected,CONFIG_LOCAL_LIBUNWIND)
 608  endif
 609
 610  ifneq ($(have_libunwind), 1)
 611    NO_LIBUNWIND := 1
 612  endif
 613else
 614  NO_LOCAL_LIBUNWIND := 1
 615endif
 616
 617ifndef NO_LIBBPF
 618  ifneq ($(feature-bpf), 1)
 619    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
 620    NO_LIBBPF := 1
 621  endif
 622endif
 623
 624dwarf-post-unwind := 1
 625dwarf-post-unwind-text := BUG
 626
 627# setup DWARF post unwinder
 628ifdef NO_LIBUNWIND
 629  ifdef NO_LIBDW_DWARF_UNWIND
 630    msg := $(warning Disabling post unwind, no support found.);
 631    dwarf-post-unwind := 0
 632  else
 633    dwarf-post-unwind-text := libdw
 634    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
 635  endif
 636else
 637  dwarf-post-unwind-text := libunwind
 638  $(call detected,CONFIG_LIBUNWIND)
 639  # Enable libunwind support by default.
 640  ifndef NO_LIBDW_DWARF_UNWIND
 641    NO_LIBDW_DWARF_UNWIND := 1
 642  endif
 643endif
 644
 645ifeq ($(dwarf-post-unwind),1)
 646  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
 647  $(call detected,CONFIG_DWARF_UNWIND)
 648else
 649  NO_DWARF_UNWIND := 1
 650endif
 651
 652ifndef NO_LOCAL_LIBUNWIND
 653  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
 654    $(call feature_check,libunwind-debug-frame)
 655    ifneq ($(feature-libunwind-debug-frame), 1)
 656      msg := $(warning No debug_frame support found in libunwind);
 657      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 658    endif
 659  else
 660    # non-ARM has no dwarf_find_debug_frame() function:
 661    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 662  endif
 663  EXTLIBS += $(LIBUNWIND_LIBS)
 664  LDFLAGS += $(LIBUNWIND_LIBS)
 665endif
 666ifeq ($(findstring -static,${LDFLAGS}),-static)
 667  # gcc -static links libgcc_eh which contans piece of libunwind
 668  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
 669endif
 670
 671ifndef NO_LIBUNWIND
 672  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
 673  CFLAGS  += $(LIBUNWIND_CFLAGS)
 674  LDFLAGS += $(LIBUNWIND_LDFLAGS)
 675  EXTLIBS += $(EXTLIBS_LIBUNWIND)
 676endif
 677
 678ifeq ($(NO_SYSCALL_TABLE),0)
 679  $(call detected,CONFIG_TRACE)
 680else
 681  ifndef NO_LIBAUDIT
 682    $(call feature_check,libaudit)
 683    ifneq ($(feature-libaudit), 1)
 684      msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
 685      NO_LIBAUDIT := 1
 686    else
 687      CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
 688      EXTLIBS += -laudit
 689      $(call detected,CONFIG_TRACE)
 690    endif
 691  endif
 692endif
 693
 694ifndef NO_LIBCRYPTO
 695  ifneq ($(feature-libcrypto), 1)
 696    msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
 697    NO_LIBCRYPTO := 1
 698  else
 699    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
 700    EXTLIBS += -lcrypto
 701    $(call detected,CONFIG_CRYPTO)
 702  endif
 703endif
 704
 705ifdef NO_NEWT
 706  NO_SLANG=1
 707endif
 708
 709ifndef NO_SLANG
 710  ifneq ($(feature-libslang), 1)
 711    ifneq ($(feature-libslang-include-subdir), 1)
 712      msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
 713      NO_SLANG := 1
 714    else
 715      CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
 716    endif
 717  endif
 718  ifndef NO_SLANG
 719    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
 720    CFLAGS += -DHAVE_SLANG_SUPPORT
 721    EXTLIBS += -lslang
 722    $(call detected,CONFIG_SLANG)
 723  endif
 724endif
 725
 726ifdef GTK2
 727  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
 728  $(call feature_check,gtk2)
 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    $(call feature_check,gtk2-infobar)
 734    ifeq ($(feature-gtk2-infobar), 1)
 735      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
 736    endif
 737    CFLAGS += -DHAVE_GTK2_SUPPORT
 738    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
 739    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
 740    EXTLIBS += -ldl
 741  endif
 742endif
 743
 744ifdef NO_LIBPERL
 745  CFLAGS += -DNO_LIBPERL
 746else
 747  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
 748  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
 749  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
 750  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
 751  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
 752  PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
 753  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
 754  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 755
 756  ifneq ($(feature-libperl), 1)
 757    CFLAGS += -DNO_LIBPERL
 758    NO_LIBPERL := 1
 759    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
 760  else
 761    LDFLAGS += $(PERL_EMBED_LDFLAGS)
 762    EXTLIBS += $(PERL_EMBED_LIBADD)
 763    CFLAGS += -DHAVE_LIBPERL_SUPPORT
 764    $(call detected,CONFIG_LIBPERL)
 765  endif
 766endif
 767
 768ifeq ($(feature-timerfd), 1)
 769  CFLAGS += -DHAVE_TIMERFD_SUPPORT
 770else
 771  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
 772endif
 773
 774disable-python = $(eval $(disable-python_code))
 775define disable-python_code
 776  CFLAGS += -DNO_LIBPYTHON
 777  $(warning $1)
 778  NO_LIBPYTHON := 1
 779endef
 780
 781ifdef NO_LIBPYTHON
 782  $(call disable-python,Python support disabled by user)
 783else
 784
 785  ifndef PYTHON
 786    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
 787  else
 788    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
 789
 790    ifndef PYTHON_CONFIG
 791      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
 792    else
 793
 794      ifneq ($(feature-libpython), 1)
 795        $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
 796      else
 797         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
 798         EXTLIBS += $(PYTHON_EMBED_LIBADD)
 799         LANG_BINDINGS += $(obj-perf)python/perf.so
 800         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
 801         $(call detected,CONFIG_LIBPYTHON)
 802      endif
 803    endif
 804  endif
 805endif
 806
 807ifeq ($(feature-libbfd), 1)
 808  EXTLIBS += -lbfd -lopcodes
 809else
 810  # we are on a system that requires -liberty and (maybe) -lz
 811  # to link against -lbfd; test each case individually here
 812
 813  # call all detections now so we get correct
 814  # status in VF output
 815  $(call feature_check,libbfd-liberty)
 816  $(call feature_check,libbfd-liberty-z)
 817
 818  ifeq ($(feature-libbfd-liberty), 1)
 819    EXTLIBS += -lbfd -lopcodes -liberty
 820    FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
 821  else
 822    ifeq ($(feature-libbfd-liberty-z), 1)
 823      EXTLIBS += -lbfd -lopcodes -liberty -lz
 824      FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
 825    endif
 826  endif
 827  $(call feature_check,disassembler-four-args)
 828endif
 829
 830ifeq ($(feature-libbfd-buildid), 1)
 831  CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
 832else
 833  msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
 834endif
 835
 836ifdef NO_DEMANGLE
 837  CFLAGS += -DNO_DEMANGLE
 838else
 839  ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
 840    EXTLIBS += -liberty
 841  else
 842    ifeq ($(filter -liberty,$(EXTLIBS)),)
 843      $(call feature_check,cplus-demangle)
 844
 845      # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
 846      # or any of 'bfd iberty z' trinity
 847      ifeq ($(feature-cplus-demangle), 1)
 848        EXTLIBS += -liberty
 849      else
 850        msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
 851        CFLAGS += -DNO_DEMANGLE
 852      endif
 853    endif
 854  endif
 855
 856  ifneq ($(filter -liberty,$(EXTLIBS)),)
 857    CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 858  endif
 859endif
 860
 861ifneq ($(filter -lbfd,$(EXTLIBS)),)
 862  CFLAGS += -DHAVE_LIBBFD_SUPPORT
 863endif
 864
 865ifndef NO_ZLIB
 866  ifeq ($(feature-zlib), 1)
 867    CFLAGS += -DHAVE_ZLIB_SUPPORT
 868    EXTLIBS += -lz
 869    $(call detected,CONFIG_ZLIB)
 870  else
 871    NO_ZLIB := 1
 872  endif
 873endif
 874
 875ifndef NO_LZMA
 876  ifeq ($(feature-lzma), 1)
 877    CFLAGS += -DHAVE_LZMA_SUPPORT
 878    EXTLIBS += -llzma
 879    $(call detected,CONFIG_LZMA)
 880  else
 881    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
 882    NO_LZMA := 1
 883  endif
 884endif
 885
 886ifndef NO_LIBZSTD
 887  ifeq ($(feature-libzstd), 1)
 888    CFLAGS += -DHAVE_ZSTD_SUPPORT
 889    CFLAGS += $(LIBZSTD_CFLAGS)
 890    LDFLAGS += $(LIBZSTD_LDFLAGS)
 891    EXTLIBS += -lzstd
 892    $(call detected,CONFIG_ZSTD)
 893  else
 894    msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
 895    NO_LIBZSTD := 1
 896  endif
 897endif
 898
 899ifndef NO_LIBCAP
 900  ifeq ($(feature-libcap), 1)
 901    CFLAGS += -DHAVE_LIBCAP_SUPPORT
 902    EXTLIBS += -lcap
 903    $(call detected,CONFIG_LIBCAP)
 904  else
 905    msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
 906    NO_LIBCAP := 1
 907  endif
 908endif
 909
 910ifndef NO_BACKTRACE
 911  ifeq ($(feature-backtrace), 1)
 912    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
 913  endif
 914endif
 915
 916ifndef NO_LIBNUMA
 917  ifeq ($(feature-libnuma), 0)
 918    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
 919    NO_LIBNUMA := 1
 920  else
 921    ifeq ($(feature-numa_num_possible_cpus), 0)
 922      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
 923      NO_LIBNUMA := 1
 924    else
 925      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
 926      EXTLIBS += -lnuma
 927      $(call detected,CONFIG_NUMA)
 928    endif
 929  endif
 930endif
 931
 932ifdef HAVE_KVM_STAT_SUPPORT
 933    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
 934endif
 935
 936ifeq ($(feature-disassembler-four-args), 1)
 937    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
 938endif
 939
 940ifeq (${IS_64_BIT}, 1)
 941  ifndef NO_PERF_READ_VDSO32
 942    $(call feature_check,compile-32)
 943    ifeq ($(feature-compile-32), 1)
 944      CFLAGS += -DHAVE_PERF_READ_VDSO32
 945    else
 946      NO_PERF_READ_VDSO32 := 1
 947    endif
 948  endif
 949  ifneq ($(SRCARCH), x86)
 950    NO_PERF_READ_VDSOX32 := 1
 951  endif
 952  ifndef NO_PERF_READ_VDSOX32
 953    $(call feature_check,compile-x32)
 954    ifeq ($(feature-compile-x32), 1)
 955      CFLAGS += -DHAVE_PERF_READ_VDSOX32
 956    else
 957      NO_PERF_READ_VDSOX32 := 1
 958    endif
 959  endif
 960else
 961  NO_PERF_READ_VDSO32 := 1
 962  NO_PERF_READ_VDSOX32 := 1
 963endif
 964
 965ifndef NO_LIBBABELTRACE
 966  $(call feature_check,libbabeltrace)
 967  ifeq ($(feature-libbabeltrace), 1)
 968    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
 969    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
 970    EXTLIBS += -lbabeltrace-ctf
 971    $(call detected,CONFIG_LIBBABELTRACE)
 972  else
 973    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
 974  endif
 975endif
 976
 977ifndef NO_AUXTRACE
 978  ifeq ($(SRCARCH),x86)
 979    ifeq ($(feature-get_cpuid), 0)
 980      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
 981      NO_AUXTRACE := 1
 982    endif
 983  endif
 984  ifndef NO_AUXTRACE
 985    $(call detected,CONFIG_AUXTRACE)
 986    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
 987  endif
 988endif
 989
 990ifndef NO_JVMTI
 991  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
 992    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
 993  else
 994    ifneq (,$(wildcard /usr/sbin/alternatives))
 995      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
 996    endif
 997  endif
 998  ifndef JDIR
 999    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1000    NO_JVMTI := 1
1001  endif
1002endif
1003
1004ifndef NO_JVMTI
1005  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1006  $(call feature_check,jvmti)
1007  ifeq ($(feature-jvmti), 1)
1008    $(call detected_var,JDIR)
1009    ifndef NO_JVMTI_CMLR
1010      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1011      $(call feature_check,jvmti-cmlr)
1012      ifeq ($(feature-jvmti-cmlr), 1)
1013        CFLAGS += -DHAVE_JVMTI_CMLR
1014      endif
1015    endif # NO_JVMTI_CMLR
1016  else
1017    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1018    NO_JVMTI := 1
1019  endif
1020endif
1021
1022USE_CXX = 0
1023USE_CLANGLLVM = 0
1024ifdef LIBCLANGLLVM
1025  $(call feature_check,cxx)
1026  ifneq ($(feature-cxx), 1)
1027    msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1028  else
1029    $(call feature_check,llvm)
1030    $(call feature_check,llvm-version)
1031    ifneq ($(feature-llvm), 1)
1032      msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1033    else
1034      $(call feature_check,clang)
1035      ifneq ($(feature-clang), 1)
1036        msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1037      else
1038        CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1039        CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1040        $(call detected,CONFIG_CXX)
1041        $(call detected,CONFIG_CLANGLLVM)
1042	USE_CXX = 1
1043	USE_LLVM = 1
1044	USE_CLANG = 1
1045        ifneq ($(feature-llvm-version),1)
1046          msg := $(warning This version of LLVM is not tested. May cause build errors)
1047        endif
1048      endif
1049    endif
1050  endif
1051endif
1052
1053ifdef LIBPFM4
1054  $(call feature_check,libpfm4)
1055  ifeq ($(feature-libpfm4), 1)
1056    CFLAGS += -DHAVE_LIBPFM
1057    EXTLIBS += -lpfm
1058    ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1059    $(call detected,CONFIG_LIBPFM4)
1060  else
1061    msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1062    NO_LIBPFM4 := 1
1063  endif
1064endif
1065
1066# Among the variables below, these:
1067#   perfexecdir
1068#   perf_include_dir
1069#   perf_examples_dir
1070#   template_dir
1071#   mandir
1072#   infodir
1073#   htmldir
1074#   ETC_PERFCONFIG (but not sysconfdir)
1075# can be specified as a relative path some/where/else;
1076# this is interpreted as relative to $(prefix) and "perf" at
1077# runtime figures out where they are based on the path to the executable.
1078# This can help installing the suite in a relocatable way.
1079
1080# Make the path relative to DESTDIR, not to prefix
1081ifndef DESTDIR
1082prefix ?= $(HOME)
1083endif
1084bindir_relative = bin
1085bindir = $(abspath $(prefix)/$(bindir_relative))
1086mandir = share/man
1087infodir = share/info
1088perfexecdir = libexec/perf-core
1089perf_include_dir = lib/perf/include
1090perf_examples_dir = lib/perf/examples
1091sharedir = $(prefix)/share
1092template_dir = share/perf-core/templates
1093STRACE_GROUPS_DIR = share/perf-core/strace/groups
1094htmldir = share/doc/perf-doc
1095tipdir = share/doc/perf-tip
1096srcdir = $(srctree)/tools/perf
1097ifeq ($(prefix),/usr)
1098sysconfdir = /etc
1099ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1100else
1101sysconfdir = $(prefix)/etc
1102ETC_PERFCONFIG = etc/perfconfig
1103endif
1104ifndef lib
1105ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1106lib = lib64
1107else
1108lib = lib
1109endif
1110endif # lib
1111libdir = $(prefix)/$(lib)
1112
1113# Shell quote (do not use $(call) to accommodate ancient setups);
1114ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1115STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1116DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1117bindir_SQ = $(subst ','\'',$(bindir))
1118mandir_SQ = $(subst ','\'',$(mandir))
1119infodir_SQ = $(subst ','\'',$(infodir))
1120perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1121perf_include_dir_SQ = $(subst ','\'',$(perf_include_dir))
1122perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1123template_dir_SQ = $(subst ','\'',$(template_dir))
1124htmldir_SQ = $(subst ','\'',$(htmldir))
1125tipdir_SQ = $(subst ','\'',$(tipdir))
1126prefix_SQ = $(subst ','\'',$(prefix))
1127sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1128libdir_SQ = $(subst ','\'',$(libdir))
1129srcdir_SQ = $(subst ','\'',$(srcdir))
1130
1131ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1132perfexec_instdir = $(perfexecdir)
1133perf_include_instdir = $(perf_include_dir)
1134perf_examples_instdir = $(perf_examples_dir)
1135STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1136tip_instdir = $(tipdir)
1137else
1138perfexec_instdir = $(prefix)/$(perfexecdir)
1139perf_include_instdir = $(prefix)/$(perf_include_dir)
1140perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1141STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1142tip_instdir = $(prefix)/$(tipdir)
1143endif
1144perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1145perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1146perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1147STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1148tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1149
1150# If we install to $(HOME) we keep the traceevent default:
1151# $(HOME)/.traceevent/plugins
1152# Otherwise we install plugins into the global $(libdir).
1153ifdef DESTDIR
1154plugindir=$(libdir)/traceevent/plugins
1155plugindir_SQ= $(subst ','\'',$(plugindir))
1156endif
1157
1158print_var = $(eval $(print_var_code)) $(info $(MSG))
1159define print_var_code
1160    MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
1161endef
1162
1163ifeq ($(VF),1)
1164  # Display EXTRA features which are detected manualy
1165  # from here with feature_check call and thus cannot
1166  # be partof global state output.
1167  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),))
1168  $(call print_var,prefix)
1169  $(call print_var,bindir)
1170  $(call print_var,libdir)
1171  $(call print_var,sysconfdir)
1172  $(call print_var,LIBUNWIND_DIR)
1173  $(call print_var,LIBDW_DIR)
1174  $(call print_var,JDIR)
1175
1176  ifeq ($(dwarf-post-unwind),1)
1177    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
1178  endif
1179  $(info )
1180endif
1181
1182$(call detected_var,bindir_SQ)
1183$(call detected_var,PYTHON_WORD)
1184ifneq ($(OUTPUT),)
1185$(call detected_var,OUTPUT)
1186endif
1187$(call detected_var,htmldir_SQ)
1188$(call detected_var,infodir_SQ)
1189$(call detected_var,mandir_SQ)
1190$(call detected_var,ETC_PERFCONFIG_SQ)
1191$(call detected_var,STRACE_GROUPS_DIR_SQ)
1192$(call detected_var,prefix_SQ)
1193$(call detected_var,perfexecdir_SQ)
1194$(call detected_var,perf_include_dir_SQ)
1195$(call detected_var,perf_examples_dir_SQ)
1196$(call detected_var,tipdir_SQ)
1197$(call detected_var,srcdir_SQ)
1198$(call detected_var,LIBDIR)
1199$(call detected_var,GTK_CFLAGS)
1200$(call detected_var,PERL_EMBED_CCOPTS)
1201$(call detected_var,PYTHON_EMBED_CCOPTS)