tools/perf/config/Makefile

   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 LIB_INCLUDE := $(srctree)/tools/lib/
  15 CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
  16
  17 include $(src-perf)/config/Makefile.arch
  18
  19 NO_PERF_REGS := 1
  20
  21 # Additional ARCH settings for x86
  22 ifeq ($(ARCH),x86)
  23   ifeq (${IS_64_BIT}, 1)
  24     CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
  25     ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
  26     LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
  27   else
  28     LIBUNWIND_LIBS = -lunwind -lunwind-x86
  29   endif
  30   NO_PERF_REGS := 0
  31 endif
  32
  33 ifeq ($(ARCH),arm)
  34   NO_PERF_REGS := 0
  35   LIBUNWIND_LIBS = -lunwind -lunwind-arm
  36 endif
  37
  38 ifeq ($(ARCH),arm64)
  39   NO_PERF_REGS := 0
  40   LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
  41 endif
  42
  43 # So far there's only x86 and arm libdw unwind support merged in perf.
  44 # Disable it on all other architectures in case libdw unwind
  45 # support is detected in system. Add supported architectures
  46 # to the check.
  47 ifneq ($(ARCH),$(filter $(ARCH),x86 arm))
  48   NO_LIBDW_DWARF_UNWIND := 1
  49 endif
  50
  51 ifeq ($(LIBUNWIND_LIBS),)
  52   NO_LIBUNWIND := 1
  53 else
  54   #
  55   # For linking with debug library, run like:
  56   #
  57   #   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
  58   #
  59   ifdef LIBUNWIND_DIR
  60     LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
  61     LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
  62   endif
  63   LIBUNWIND_LDFLAGS += $(LIBUNWIND_LIBS)
  64
  65   # Set per-feature check compilation flags
  66   FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
  67   FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS)
  68   FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
  69   FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS)
  70 endif
  71
  72 ifeq ($(NO_PERF_REGS),0)
  73   CFLAGS += -DHAVE_PERF_REGS_SUPPORT
  74 endif
  75
  76 ifndef NO_LIBELF
  77   # for linking with debug library, run like:
  78   # make DEBUG=1 LIBDW_DIR=/opt/libdw/
  79   ifdef LIBDW_DIR
  80     LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
  81     LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
  82   endif
  83   FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
  84   FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) -ldw
  85 endif
  86
  87 # include ARCH specific config
  88 -include $(src-perf)/arch/$(ARCH)/Makefile
  89
  90 include $(src-perf)/config/utilities.mak
  91
  92 ifeq ($(call get-executable,$(FLEX)),)
  93   dummy := $(error Error: $(FLEX) is missing on this system, please install it)
  94 endif
  95
  96 ifeq ($(call get-executable,$(BISON)),)
  97   dummy := $(error Error: $(BISON) is missing on this system, please install it)
  98 endif
  99
 100 # Treat warnings as errors unless directed not to
 101 ifneq ($(WERROR),0)
 102   CFLAGS += -Werror
 103 endif
 104
 105 ifndef DEBUG
 106   DEBUG := 0
 107 endif
 108
 109 ifeq ($(DEBUG),0)
 110   CFLAGS += -O6
 111 endif
 112
 113 ifdef PARSER_DEBUG
 114   PARSER_DEBUG_BISON := -t
 115   PARSER_DEBUG_FLEX  := -d
 116   CFLAGS             += -DPARSER_DEBUG
 117 endif
 118
 119 ifndef NO_LIBPYTHON
 120   # Try different combinations to accommodate systems that only have
 121   # python[2][-config] in weird combinations but always preferring
 122   # python2 and python2-config as per pep-0394. If we catch a
 123   # python[-config] in version 3, the version check will kill it.
 124   PYTHON2 := $(if $(call get-executable,python2),python2,python)
 125   override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2))
 126   PYTHON2_CONFIG := \
 127     $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
 128   override PYTHON_CONFIG := \
 129     $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG))
 130
 131   PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
 132
 133   PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
 134   PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
 135
 136   FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
 137   FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
 138   FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
 139   FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
 140 endif
 141
 142 CFLAGS += -fno-omit-frame-pointer
 143 CFLAGS += -ggdb3
 144 CFLAGS += -funwind-tables
 145 CFLAGS += -Wall
 146 CFLAGS += -Wextra
 147 CFLAGS += -std=gnu99
 148
 149 # Enforce a non-executable stack, as we may regress (again) in the future by
 150 # adding assembler files missing the .GNU-stack linker note.
 151 LDFLAGS += -Wl,-z,noexecstack
 152
 153 EXTLIBS = -lpthread -lrt -lm -ldl
 154
 155 ifneq ($(OUTPUT),)
 156   OUTPUT_FEATURES = $(OUTPUT)config/feature-checks/
 157   $(shell mkdir -p $(OUTPUT_FEATURES))
 158 endif
 159
 160 feature_check = $(eval $(feature_check_code))
 161 define feature_check_code
 162   feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C config/feature-checks test-$1.bin >/dev/null 2>/dev/null && echo 1 || echo 0)
 163 endef
 164
 165 feature_set = $(eval $(feature_set_code))
 166 define feature_set_code
 167   feature-$(1) := 1
 168 endef
 169
 170 #
 171 # Build the feature check binaries in parallel, ignore errors, ignore return value and suppress output:
 172 #
 173
 174 #
 175 # Note that this is not a complete list of all feature tests, just
 176 # those that are typically built on a fully configured system.
 177 #
 178 # [ Feature tests not mentioned here have to be built explicitly in
 179 #   the rule that uses them - an example for that is the 'bionic'
 180 #   feature check. ]
 181 #
 182 CORE_FEATURE_TESTS =                    \
 183         backtrace                       \
 184         dwarf                           \
 185         fortify-source                  \
 186         sync-compare-and-swap           \
 187         glibc                           \
 188         gtk2                            \
 189         gtk2-infobar                    \
 190         libaudit                        \
 191         libbfd                          \
 192         libelf                          \
 193         libelf-getphdrnum               \
 194         libelf-mmap                     \
 195         libnuma                         \
 196         libperl                         \
 197         libpython                       \
 198         libpython-version               \
 199         libslang                        \
 200         libunwind                       \
 201         pthread-attr-setaffinity-np     \
 202         stackprotector-all              \
 203         timerfd                         \
 204         libdw-dwarf-unwind              \
 205         zlib
 206
 207 LIB_FEATURE_TESTS =                     \
 208         dwarf                           \
 209         glibc                           \
 210         gtk2                            \
 211         libaudit                        \
 212         libbfd                          \
 213         libelf                          \
 214         libnuma                         \
 215         libperl                         \
 216         libpython                       \
 217         libslang                        \
 218         libunwind                       \
 219         libdw-dwarf-unwind              \
 220         zlib
 221
 222 VF_FEATURE_TESTS =                      \
 223         backtrace                       \
 224         fortify-source                  \
 225         sync-compare-and-swap           \
 226         gtk2-infobar                    \
 227         libelf-getphdrnum               \
 228         libelf-mmap                     \
 229         libpython-version               \
 230         pthread-attr-setaffinity-np     \
 231         stackprotector-all              \
 232         timerfd                         \
 233         libunwind-debug-frame           \
 234         bionic                          \
 235         liberty                         \
 236         liberty-z                       \
 237         cplus-demangle                  \
 238         compile-32                      \
 239         compile-x32
 240
 241 # Set FEATURE_CHECK_(C|LD)FLAGS-all for all CORE_FEATURE_TESTS features.
 242 # If in the future we need per-feature checks/flags for features not
 243 # mentioned in this list we need to refactor this ;-).
 244 set_test_all_flags = $(eval $(set_test_all_flags_code))
 245 define set_test_all_flags_code
 246   FEATURE_CHECK_CFLAGS-all  += $(FEATURE_CHECK_CFLAGS-$(1))
 247   FEATURE_CHECK_LDFLAGS-all += $(FEATURE_CHECK_LDFLAGS-$(1))
 248 endef
 249
 250 $(foreach feat,$(CORE_FEATURE_TESTS),$(call set_test_all_flags,$(feat)))
 251
 252 #
 253 # Special fast-path for the 'all features are available' case:
 254 #
 255 $(call feature_check,all,$(MSG))
 256
 257 #
 258 # Just in case the build freshly failed, make sure we print the
 259 # feature matrix:
 260 #
 261 ifeq ($(feature-all), 1)
 262   #
 263   # test-all.c passed - just set all the core feature flags to 1:
 264   #
 265   $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_set,$(feat)))
 266 else
 267   $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS=$(LDFLAGS) -i -j -C config/feature-checks $(addsuffix .bin,$(CORE_FEATURE_TESTS)) >/dev/null 2>&1)
 268   $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
 269 endif
 270
 271 ifeq ($(feature-stackprotector-all), 1)
 272   CFLAGS += -fstack-protector-all
 273 endif
 274
 275 ifeq ($(DEBUG),0)
 276   ifeq ($(feature-fortify-source), 1)
 277     CFLAGS += -D_FORTIFY_SOURCE=2
 278   endif
 279 endif
 280
 281 CFLAGS += -I$(src-perf)/util/include
 282 CFLAGS += -I$(src-perf)/arch/$(ARCH)/include
 283 CFLAGS += -I$(srctree)/tools/include/
 284 CFLAGS += -I$(srctree)/arch/$(ARCH)/include/uapi
 285 CFLAGS += -I$(srctree)/arch/$(ARCH)/include
 286 CFLAGS += -I$(srctree)/include/uapi
 287 CFLAGS += -I$(srctree)/include
 288
 289 # $(obj-perf)      for generated common-cmds.h
 290 # $(obj-perf)/util for generated bison/flex headers
 291 ifneq ($(OUTPUT),)
 292 CFLAGS += -I$(obj-perf)/util
 293 CFLAGS += -I$(obj-perf)
 294 endif
 295
 296 CFLAGS += -I$(src-perf)/util
 297 CFLAGS += -I$(src-perf)
 298 CFLAGS += -I$(LIB_INCLUDE)
 299
 300 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 301
 302 ifeq ($(feature-sync-compare-and-swap), 1)
 303   CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
 304 endif
 305
 306 ifeq ($(feature-pthread-attr-setaffinity-np), 1)
 307   CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
 308 endif
 309
 310 ifndef NO_BIONIC
 311   $(call feature_check,bionic)
 312   ifeq ($(feature-bionic), 1)
 313     BIONIC := 1
 314     EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
 315     EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
 316   endif
 317 endif
 318
 319 ifdef NO_LIBELF
 320   NO_DWARF := 1
 321   NO_DEMANGLE := 1
 322   NO_LIBUNWIND := 1
 323   NO_LIBDW_DWARF_UNWIND := 1
 324 else
 325   ifeq ($(feature-libelf), 0)
 326     ifeq ($(feature-glibc), 1)
 327       LIBC_SUPPORT := 1
 328     endif
 329     ifeq ($(BIONIC),1)
 330       LIBC_SUPPORT := 1
 331     endif
 332     ifeq ($(LIBC_SUPPORT),1)
 333       msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
 334
 335       NO_LIBELF := 1
 336       NO_DWARF := 1
 337       NO_DEMANGLE := 1
 338       NO_LIBUNWIND := 1
 339       NO_LIBDW_DWARF_UNWIND := 1
 340     else
 341       ifneq ($(filter s% -static%,$(LDFLAGS),),)
 342         msg := $(error No static glibc found, please install glibc-static);
 343       else
 344         msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
 345       endif
 346     endif
 347   else
 348     ifndef NO_LIBDW_DWARF_UNWIND
 349       ifneq ($(feature-libdw-dwarf-unwind),1)
 350         NO_LIBDW_DWARF_UNWIND := 1
 351         msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
 352       endif
 353     endif
 354     ifneq ($(feature-dwarf), 1)
 355       msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
 356       NO_DWARF := 1
 357     endif # Dwarf support
 358   endif # libelf support
 359 endif # NO_LIBELF
 360
 361 ifndef NO_LIBELF
 362   CFLAGS += -DHAVE_LIBELF_SUPPORT
 363   EXTLIBS += -lelf
 364
 365   ifeq ($(feature-libelf-mmap), 1)
 366     CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
 367   endif
 368
 369   ifeq ($(feature-libelf-getphdrnum), 1)
 370     CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
 371   endif
 372
 373   # include ARCH specific config
 374   -include $(src-perf)/arch/$(ARCH)/Makefile
 375
 376   ifndef NO_DWARF
 377     ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
 378       msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
 379       NO_DWARF := 1
 380     else
 381       CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
 382       LDFLAGS += $(LIBDW_LDFLAGS)
 383       EXTLIBS += -ldw
 384     endif # PERF_HAVE_DWARF_REGS
 385   endif # NO_DWARF
 386 endif # NO_LIBELF
 387
 388 ifeq ($(ARCH),powerpc)
 389   ifndef NO_DWARF
 390     CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
 391   endif
 392 endif
 393
 394 ifndef NO_LIBUNWIND
 395   ifneq ($(feature-libunwind), 1)
 396     msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
 397     NO_LIBUNWIND := 1
 398   endif
 399 endif
 400
 401 dwarf-post-unwind := 1
 402 dwarf-post-unwind-text := BUG
 403
 404 # setup DWARF post unwinder
 405 ifdef NO_LIBUNWIND
 406   ifdef NO_LIBDW_DWARF_UNWIND
 407     msg := $(warning Disabling post unwind, no support found.);
 408     dwarf-post-unwind := 0
 409   else
 410     dwarf-post-unwind-text := libdw
 411   endif
 412 else
 413   dwarf-post-unwind-text := libunwind
 414   # Enable libunwind support by default.
 415   ifndef NO_LIBDW_DWARF_UNWIND
 416     NO_LIBDW_DWARF_UNWIND := 1
 417   endif
 418 endif
 419
 420 ifeq ($(dwarf-post-unwind),1)
 421   CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
 422 else
 423   NO_DWARF_UNWIND := 1
 424 endif
 425
 426 ifndef NO_LIBUNWIND
 427   ifeq ($(ARCH),$(filter $(ARCH),arm arm64))
 428     $(call feature_check,libunwind-debug-frame)
 429     ifneq ($(feature-libunwind-debug-frame), 1)
 430       msg := $(warning No debug_frame support found in libunwind);
 431       CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 432     endif
 433   else
 434     # non-ARM has no dwarf_find_debug_frame() function:
 435     CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 436   endif
 437   CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
 438   EXTLIBS += $(LIBUNWIND_LIBS)
 439   CFLAGS  += $(LIBUNWIND_CFLAGS)
 440   LDFLAGS += $(LIBUNWIND_LDFLAGS)
 441 endif
 442
 443 ifndef NO_LIBAUDIT
 444   ifneq ($(feature-libaudit), 1)
 445     msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
 446     NO_LIBAUDIT := 1
 447   else
 448     CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
 449     EXTLIBS += -laudit
 450   endif
 451 endif
 452
 453 ifdef NO_NEWT
 454   NO_SLANG=1
 455 endif
 456
 457 ifndef NO_SLANG
 458   ifneq ($(feature-libslang), 1)
 459     msg := $(warning slang not found, disables TUI support. Please install slang-devel or libslang-dev);
 460     NO_SLANG := 1
 461   else
 462     # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
 463     CFLAGS += -I/usr/include/slang
 464     CFLAGS += -DHAVE_SLANG_SUPPORT
 465     EXTLIBS += -lslang
 466   endif
 467 endif
 468
 469 ifndef NO_GTK2
 470   FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
 471   ifneq ($(feature-gtk2), 1)
 472     msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
 473     NO_GTK2 := 1
 474   else
 475     ifeq ($(feature-gtk2-infobar), 1)
 476       GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
 477     endif
 478     CFLAGS += -DHAVE_GTK2_SUPPORT
 479     GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
 480     GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
 481     EXTLIBS += -ldl
 482   endif
 483 endif
 484
 485 grep-libs  = $(filter -l%,$(1))
 486 strip-libs = $(filter-out -l%,$(1))
 487
 488 ifdef NO_LIBPERL
 489   CFLAGS += -DNO_LIBPERL
 490 else
 491   PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
 492   PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
 493   PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
 494   PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
 495   FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 496
 497   ifneq ($(feature-libperl), 1)
 498     CFLAGS += -DNO_LIBPERL
 499     NO_LIBPERL := 1
 500     msg := $(warning Missing perl devel files. Disabling perl scripting support, consider installing perl-ExtUtils-Embed);
 501   else
 502     LDFLAGS += $(PERL_EMBED_LDFLAGS)
 503     EXTLIBS += $(PERL_EMBED_LIBADD)
 504   endif
 505 endif
 506
 507 ifeq ($(feature-timerfd), 1)
 508   CFLAGS += -DHAVE_TIMERFD_SUPPORT
 509 else
 510   msg := $(warning No timerfd support. Disables 'perf kvm stat live');
 511 endif
 512
 513 disable-python = $(eval $(disable-python_code))
 514 define disable-python_code
 515   CFLAGS += -DNO_LIBPYTHON
 516   $(if $(1),$(warning No $(1) was found))
 517   $(warning Python support will not be built)
 518   NO_LIBPYTHON := 1
 519 endef
 520
 521 ifdef NO_LIBPYTHON
 522   $(call disable-python)
 523 else
 524
 525   ifndef PYTHON
 526     $(call disable-python,python interpreter)
 527   else
 528     PYTHON_WORD := $(call shell-wordify,$(PYTHON))
 529
 530     ifndef PYTHON_CONFIG
 531       $(call disable-python,python-config tool)
 532     else
 533
 534       PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
 535
 536       PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
 537       PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
 538       PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS))
 539       PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
 540       FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
 541
 542       ifneq ($(feature-libpython), 1)
 543         $(call disable-python,Python.h (for Python 2.x))
 544       else
 545
 546         ifneq ($(feature-libpython-version), 1)
 547           $(warning Python 3 is not yet supported; please set)
 548           $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
 549           $(warning If you also have Python 2 installed, then)
 550           $(warning try something like:)
 551           $(warning $(and ,))
 552           $(warning $(and ,)  make PYTHON=python2)
 553           $(warning $(and ,))
 554           $(warning Otherwise, disable Python support entirely:)
 555           $(warning $(and ,))
 556           $(warning $(and ,)  make NO_LIBPYTHON=1)
 557           $(warning $(and ,))
 558           $(error   $(and ,))
 559         else
 560           LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
 561           EXTLIBS += $(PYTHON_EMBED_LIBADD)
 562           LANG_BINDINGS += $(obj-perf)python/perf.so
 563         endif
 564       endif
 565     endif
 566   endif
 567 endif
 568
 569 ifeq ($(feature-libbfd), 1)
 570   EXTLIBS += -lbfd
 571
 572   # call all detections now so we get correct
 573   # status in VF output
 574   $(call feature_check,liberty)
 575   $(call feature_check,liberty-z)
 576   $(call feature_check,cplus-demangle)
 577
 578   ifeq ($(feature-liberty), 1)
 579     EXTLIBS += -liberty
 580   else
 581     ifeq ($(feature-liberty-z), 1)
 582       EXTLIBS += -liberty -lz
 583     endif
 584   endif
 585 endif
 586
 587 ifdef NO_DEMANGLE
 588   CFLAGS += -DNO_DEMANGLE
 589 else
 590   ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
 591     EXTLIBS += -liberty
 592     CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 593   else
 594     ifneq ($(feature-libbfd), 1)
 595       ifneq ($(feature-liberty), 1)
 596         ifneq ($(feature-liberty-z), 1)
 597           # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
 598           # or any of 'bfd iberty z' trinity
 599           ifeq ($(feature-cplus-demangle), 1)
 600             EXTLIBS += -liberty
 601             CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 602           else
 603             msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
 604             CFLAGS += -DNO_DEMANGLE
 605           endif
 606         endif
 607       endif
 608     endif
 609   endif
 610 endif
 611
 612 ifneq ($(filter -lbfd,$(EXTLIBS)),)
 613   CFLAGS += -DHAVE_LIBBFD_SUPPORT
 614 endif
 615
 616 ifndef NO_ZLIB
 617   ifeq ($(feature-zlib), 1)
 618     CFLAGS += -DHAVE_ZLIB_SUPPORT
 619     EXTLIBS += -lz
 620   else
 621     NO_ZLIB := 1
 622   endif
 623 endif
 624
 625 ifndef NO_BACKTRACE
 626   ifeq ($(feature-backtrace), 1)
 627     CFLAGS += -DHAVE_BACKTRACE_SUPPORT
 628   endif
 629 endif
 630
 631 ifndef NO_LIBNUMA
 632   ifeq ($(feature-libnuma), 0)
 633     msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
 634     NO_LIBNUMA := 1
 635   else
 636     CFLAGS += -DHAVE_LIBNUMA_SUPPORT
 637     EXTLIBS += -lnuma
 638   endif
 639 endif
 640
 641 ifdef HAVE_KVM_STAT_SUPPORT
 642     CFLAGS += -DHAVE_KVM_STAT_SUPPORT
 643 endif
 644
 645 ifeq (${IS_64_BIT}, 1)
 646   ifndef NO_PERF_READ_VDSO32
 647     $(call feature_check,compile-32)
 648     ifeq ($(feature-compile-32), 1)
 649       CFLAGS += -DHAVE_PERF_READ_VDSO32
 650     else
 651       NO_PERF_READ_VDSO32 := 1
 652     endif
 653   endif
 654   ifneq (${IS_X86_64}, 1)
 655     NO_PERF_READ_VDSOX32 := 1
 656   endif
 657   ifndef NO_PERF_READ_VDSOX32
 658     $(call feature_check,compile-x32)
 659     ifeq ($(feature-compile-x32), 1)
 660       CFLAGS += -DHAVE_PERF_READ_VDSOX32
 661     else
 662       NO_PERF_READ_VDSOX32 := 1
 663     endif
 664   endif
 665 else
 666   NO_PERF_READ_VDSO32 := 1
 667   NO_PERF_READ_VDSOX32 := 1
 668 endif
 669
 670 # Among the variables below, these:
 671 #   perfexecdir
 672 #   template_dir
 673 #   mandir
 674 #   infodir
 675 #   htmldir
 676 #   ETC_PERFCONFIG (but not sysconfdir)
 677 # can be specified as a relative path some/where/else;
 678 # this is interpreted as relative to $(prefix) and "perf" at
 679 # runtime figures out where they are based on the path to the executable.
 680 # This can help installing the suite in a relocatable way.
 681
 682 # Make the path relative to DESTDIR, not to prefix
 683 ifndef DESTDIR
 684 prefix ?= $(HOME)
 685 endif
 686 bindir_relative = bin
 687 bindir = $(prefix)/$(bindir_relative)
 688 mandir = share/man
 689 infodir = share/info
 690 perfexecdir = libexec/perf-core
 691 sharedir = $(prefix)/share
 692 template_dir = share/perf-core/templates
 693 htmldir = share/doc/perf-doc
 694 ifeq ($(prefix),/usr)
 695 sysconfdir = /etc
 696 ETC_PERFCONFIG = $(sysconfdir)/perfconfig
 697 else
 698 sysconfdir = $(prefix)/etc
 699 ETC_PERFCONFIG = etc/perfconfig
 700 endif
 701 ifndef lib
 702 ifeq ($(IS_X86_64),1)
 703 lib = lib64
 704 else
 705 lib = lib
 706 endif
 707 endif # lib
 708 libdir = $(prefix)/$(lib)
 709
 710 # Shell quote (do not use $(call) to accommodate ancient setups);
 711 ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
 712 DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
 713 bindir_SQ = $(subst ','\'',$(bindir))
 714 mandir_SQ = $(subst ','\'',$(mandir))
 715 infodir_SQ = $(subst ','\'',$(infodir))
 716 perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
 717 template_dir_SQ = $(subst ','\'',$(template_dir))
 718 htmldir_SQ = $(subst ','\'',$(htmldir))
 719 prefix_SQ = $(subst ','\'',$(prefix))
 720 sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
 721 libdir_SQ = $(subst ','\'',$(libdir))
 722
 723 ifneq ($(filter /%,$(firstword $(perfexecdir))),)
 724 perfexec_instdir = $(perfexecdir)
 725 else
 726 perfexec_instdir = $(prefix)/$(perfexecdir)
 727 endif
 728 perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
 729
 730 # If we install to $(HOME) we keep the traceevent default:
 731 # $(HOME)/.traceevent/plugins
 732 # Otherwise we install plugins into the global $(libdir).
 733 ifdef DESTDIR
 734 plugindir=$(libdir)/traceevent/plugins
 735 plugindir_SQ= $(subst ','\'',$(plugindir))
 736 endif
 737
 738 #
 739 # Print the result of the feature test:
 740 #
 741 feature_print_status = $(eval $(feature_print_status_code)) $(info $(MSG))
 742
 743 define feature_print_status_code
 744   ifeq ($(feature-$(1)), 1)
 745     MSG = $(shell printf '...%30s: [ \033[32mon\033[m  ]' $(1))
 746   else
 747     MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
 748   endif
 749 endef
 750
 751 feature_print_var = $(eval $(feature_print_var_code)) $(info $(MSG))
 752 define feature_print_var_code
 753     MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
 754 endef
 755
 756 feature_print_text = $(eval $(feature_print_text_code)) $(info $(MSG))
 757 define feature_print_text_code
 758     MSG = $(shell printf '...%30s: %s' $(1) $(2))
 759 endef
 760
 761 PERF_FEATURES := $(foreach feat,$(LIB_FEATURE_TESTS),feature-$(feat)($(feature-$(feat))))
 762 PERF_FEATURES_FILE := $(shell touch $(OUTPUT)PERF-FEATURES; cat $(OUTPUT)PERF-FEATURES)
 763
 764 ifeq ($(dwarf-post-unwind),1)
 765   PERF_FEATURES += dwarf-post-unwind($(dwarf-post-unwind-text))
 766 endif
 767
 768 # The $(display_lib) controls the default detection message
 769 # output. It's set if:
 770 # - detected features differes from stored features from
 771 #   last build (in PERF-FEATURES file)
 772 # - one of the $(LIB_FEATURE_TESTS) is not detected
 773 # - VF is enabled
 774
 775 ifneq ("$(PERF_FEATURES)","$(PERF_FEATURES_FILE)")
 776   $(shell echo "$(PERF_FEATURES)" > $(OUTPUT)PERF-FEATURES)
 777   display_lib := 1
 778 endif
 779
 780 feature_check = $(eval $(feature_check_code))
 781 define feature_check_code
 782   ifneq ($(feature-$(1)), 1)
 783     display_lib := 1
 784   endif
 785 endef
 786
 787 $(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_check,$(feat)))
 788
 789 ifeq ($(VF),1)
 790   display_lib := 1
 791   display_vf := 1
 792 endif
 793
 794 ifeq ($(display_lib),1)
 795   $(info )
 796   $(info Auto-detecting system features:)
 797   $(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_print_status,$(feat),))
 798
 799   ifeq ($(dwarf-post-unwind),1)
 800     $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
 801   endif
 802 endif
 803
 804 ifeq ($(display_vf),1)
 805   $(foreach feat,$(VF_FEATURE_TESTS),$(call feature_print_status,$(feat),))
 806   $(info )
 807   $(call feature_print_var,prefix)
 808   $(call feature_print_var,bindir)
 809   $(call feature_print_var,libdir)
 810   $(call feature_print_var,sysconfdir)
 811   $(call feature_print_var,LIBUNWIND_DIR)
 812   $(call feature_print_var,LIBDW_DIR)
 813 endif
 814
 815 ifeq ($(display_lib),1)
 816   $(info )
 817 endif