tools/perf/Makefile.config

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