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 (${IS_X86_64}, 1)
  24     CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
  25     ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
  26     LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
  27   else
  28     LIBUNWIND_LIBS = -lunwind -lunwind-x86
  29   endif
  30   NO_PERF_REGS := 0
  31 endif
  32
  33 ifeq ($(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         stackprotector-all              \
 202         timerfd                         \
 203         libdw-dwarf-unwind              \
 204         zlib
 205
 206 LIB_FEATURE_TESTS =                     \
 207         dwarf                           \
 208         glibc                           \
 209         gtk2                            \
 210         libaudit                        \
 211         libbfd                          \
 212         libelf                          \
 213         libnuma                         \
 214         libperl                         \
 215         libpython                       \
 216         libslang                        \
 217         libunwind                       \
 218         libdw-dwarf-unwind              \
 219         zlib
 220
 221 VF_FEATURE_TESTS =                      \
 222         backtrace                       \
 223         fortify-source                  \
 224         sync-compare-and-swap           \
 225         gtk2-infobar                    \
 226         libelf-getphdrnum               \
 227         libelf-mmap                     \
 228         libpython-version               \
 229         stackprotector-all              \
 230         timerfd                         \
 231         libunwind-debug-frame           \
 232         bionic                          \
 233         liberty                         \
 234         liberty-z                       \
 235         cplus-demangle                  \
 236         compile-32                      \
 237         compile-x32
 238
 239 # Set FEATURE_CHECK_(C|LD)FLAGS-all for all CORE_FEATURE_TESTS features.
 240 # If in the future we need per-feature checks/flags for features not
 241 # mentioned in this list we need to refactor this ;-).
 242 set_test_all_flags = $(eval $(set_test_all_flags_code))
 243 define set_test_all_flags_code
 244   FEATURE_CHECK_CFLAGS-all  += $(FEATURE_CHECK_CFLAGS-$(1))
 245   FEATURE_CHECK_LDFLAGS-all += $(FEATURE_CHECK_LDFLAGS-$(1))
 246 endef
 247
 248 $(foreach feat,$(CORE_FEATURE_TESTS),$(call set_test_all_flags,$(feat)))
 249
 250 #
 251 # Special fast-path for the 'all features are available' case:
 252 #
 253 $(call feature_check,all,$(MSG))
 254
 255 #
 256 # Just in case the build freshly failed, make sure we print the
 257 # feature matrix:
 258 #
 259 ifeq ($(feature-all), 1)
 260   #
 261   # test-all.c passed - just set all the core feature flags to 1:
 262   #
 263   $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_set,$(feat)))
 264 else
 265   $(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)
 266   $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
 267 endif
 268
 269 ifeq ($(feature-stackprotector-all), 1)
 270   CFLAGS += -fstack-protector-all
 271 endif
 272
 273 ifeq ($(DEBUG),0)
 274   ifeq ($(feature-fortify-source), 1)
 275     CFLAGS += -D_FORTIFY_SOURCE=2
 276   endif
 277 endif
 278
 279 CFLAGS += -I$(src-perf)/util/include
 280 CFLAGS += -I$(src-perf)/arch/$(ARCH)/include
 281 CFLAGS += -I$(srctree)/tools/include/
 282 CFLAGS += -I$(srctree)/arch/$(ARCH)/include/uapi
 283 CFLAGS += -I$(srctree)/arch/$(ARCH)/include
 284 CFLAGS += -I$(srctree)/include/uapi
 285 CFLAGS += -I$(srctree)/include
 286
 287 # $(obj-perf)      for generated common-cmds.h
 288 # $(obj-perf)/util for generated bison/flex headers
 289 ifneq ($(OUTPUT),)
 290 CFLAGS += -I$(obj-perf)/util
 291 CFLAGS += -I$(obj-perf)
 292 endif
 293
 294 CFLAGS += -I$(src-perf)/util
 295 CFLAGS += -I$(src-perf)
 296 CFLAGS += -I$(LIB_INCLUDE)
 297
 298 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 299
 300 ifeq ($(feature-sync-compare-and-swap), 1)
 301   CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
 302 endif
 303
 304 ifndef NO_BIONIC
 305   $(call feature_check,bionic)
 306   ifeq ($(feature-bionic), 1)
 307     BIONIC := 1
 308     EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
 309     EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
 310   endif
 311 endif
 312
 313 ifdef NO_LIBELF
 314   NO_DWARF := 1
 315   NO_DEMANGLE := 1
 316   NO_LIBUNWIND := 1
 317   NO_LIBDW_DWARF_UNWIND := 1
 318 else
 319   ifeq ($(feature-libelf), 0)
 320     ifeq ($(feature-glibc), 1)
 321       LIBC_SUPPORT := 1
 322     endif
 323     ifeq ($(BIONIC),1)
 324       LIBC_SUPPORT := 1
 325     endif
 326     ifeq ($(LIBC_SUPPORT),1)
 327       msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
 328
 329       NO_LIBELF := 1
 330       NO_DWARF := 1
 331       NO_DEMANGLE := 1
 332       NO_LIBUNWIND := 1
 333       NO_LIBDW_DWARF_UNWIND := 1
 334     else
 335       ifneq ($(filter s% -static%,$(LDFLAGS),),)
 336         msg := $(error No static glibc found, please install glibc-static);
 337       else
 338         msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
 339       endif
 340     endif
 341   else
 342     ifndef NO_LIBDW_DWARF_UNWIND
 343       ifneq ($(feature-libdw-dwarf-unwind),1)
 344         NO_LIBDW_DWARF_UNWIND := 1
 345         msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
 346       endif
 347     endif
 348     ifneq ($(feature-dwarf), 1)
 349       msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
 350       NO_DWARF := 1
 351     endif # Dwarf support
 352   endif # libelf support
 353 endif # NO_LIBELF
 354
 355 ifndef NO_LIBELF
 356   CFLAGS += -DHAVE_LIBELF_SUPPORT
 357   EXTLIBS += -lelf
 358
 359   ifeq ($(feature-libelf-mmap), 1)
 360     CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
 361   endif
 362
 363   ifeq ($(feature-libelf-getphdrnum), 1)
 364     CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
 365   endif
 366
 367   # include ARCH specific config
 368   -include $(src-perf)/arch/$(ARCH)/Makefile
 369
 370   ifndef NO_DWARF
 371     ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
 372       msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
 373       NO_DWARF := 1
 374     else
 375       CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
 376       LDFLAGS += $(LIBDW_LDFLAGS)
 377       EXTLIBS += -ldw
 378     endif # PERF_HAVE_DWARF_REGS
 379   endif # NO_DWARF
 380 endif # NO_LIBELF
 381
 382 ifeq ($(ARCH),powerpc)
 383   ifndef NO_DWARF
 384     CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
 385   endif
 386 endif
 387
 388 ifndef NO_LIBUNWIND
 389   ifneq ($(feature-libunwind), 1)
 390     msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
 391     NO_LIBUNWIND := 1
 392   endif
 393 endif
 394
 395 dwarf-post-unwind := 1
 396 dwarf-post-unwind-text := BUG
 397
 398 # setup DWARF post unwinder
 399 ifdef NO_LIBUNWIND
 400   ifdef NO_LIBDW_DWARF_UNWIND
 401     msg := $(warning Disabling post unwind, no support found.);
 402     dwarf-post-unwind := 0
 403   else
 404     dwarf-post-unwind-text := libdw
 405   endif
 406 else
 407   dwarf-post-unwind-text := libunwind
 408   # Enable libunwind support by default.
 409   ifndef NO_LIBDW_DWARF_UNWIND
 410     NO_LIBDW_DWARF_UNWIND := 1
 411   endif
 412 endif
 413
 414 ifeq ($(dwarf-post-unwind),1)
 415   CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
 416 else
 417   NO_DWARF_UNWIND := 1
 418 endif
 419
 420 ifndef NO_LIBUNWIND
 421   ifeq ($(ARCH),$(filter $(ARCH),arm arm64))
 422     $(call feature_check,libunwind-debug-frame)
 423     ifneq ($(feature-libunwind-debug-frame), 1)
 424       msg := $(warning No debug_frame support found in libunwind);
 425       CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 426     endif
 427   else
 428     # non-ARM has no dwarf_find_debug_frame() function:
 429     CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 430   endif
 431   CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
 432   EXTLIBS += $(LIBUNWIND_LIBS)
 433   CFLAGS  += $(LIBUNWIND_CFLAGS)
 434   LDFLAGS += $(LIBUNWIND_LDFLAGS)
 435 endif
 436
 437 ifndef NO_LIBAUDIT
 438   ifneq ($(feature-libaudit), 1)
 439     msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
 440     NO_LIBAUDIT := 1
 441   else
 442     CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
 443     EXTLIBS += -laudit
 444   endif
 445 endif
 446
 447 ifdef NO_NEWT
 448   NO_SLANG=1
 449 endif
 450
 451 ifndef NO_SLANG
 452   ifneq ($(feature-libslang), 1)
 453     msg := $(warning slang not found, disables TUI support. Please install slang-devel or libslang-dev);
 454     NO_SLANG := 1
 455   else
 456     # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
 457     CFLAGS += -I/usr/include/slang
 458     CFLAGS += -DHAVE_SLANG_SUPPORT
 459     EXTLIBS += -lslang
 460   endif
 461 endif
 462
 463 ifndef NO_GTK2
 464   FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
 465   ifneq ($(feature-gtk2), 1)
 466     msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
 467     NO_GTK2 := 1
 468   else
 469     ifeq ($(feature-gtk2-infobar), 1)
 470       GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
 471     endif
 472     CFLAGS += -DHAVE_GTK2_SUPPORT
 473     GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
 474     GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
 475     EXTLIBS += -ldl
 476   endif
 477 endif
 478
 479 grep-libs  = $(filter -l%,$(1))
 480 strip-libs = $(filter-out -l%,$(1))
 481
 482 ifdef NO_LIBPERL
 483   CFLAGS += -DNO_LIBPERL
 484 else
 485   PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
 486   PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
 487   PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
 488   PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
 489   FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 490
 491   ifneq ($(feature-libperl), 1)
 492     CFLAGS += -DNO_LIBPERL
 493     NO_LIBPERL := 1
 494     msg := $(warning Missing perl devel files. Disabling perl scripting support, consider installing perl-ExtUtils-Embed);
 495   else
 496     LDFLAGS += $(PERL_EMBED_LDFLAGS)
 497     EXTLIBS += $(PERL_EMBED_LIBADD)
 498   endif
 499 endif
 500
 501 ifeq ($(feature-timerfd), 1)
 502   CFLAGS += -DHAVE_TIMERFD_SUPPORT
 503 else
 504   msg := $(warning No timerfd support. Disables 'perf kvm stat live');
 505 endif
 506
 507 disable-python = $(eval $(disable-python_code))
 508 define disable-python_code
 509   CFLAGS += -DNO_LIBPYTHON
 510   $(if $(1),$(warning No $(1) was found))
 511   $(warning Python support will not be built)
 512   NO_LIBPYTHON := 1
 513 endef
 514
 515 ifdef NO_LIBPYTHON
 516   $(call disable-python)
 517 else
 518
 519   ifndef PYTHON
 520     $(call disable-python,python interpreter)
 521   else
 522     PYTHON_WORD := $(call shell-wordify,$(PYTHON))
 523
 524     ifndef PYTHON_CONFIG
 525       $(call disable-python,python-config tool)
 526     else
 527
 528       PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
 529
 530       PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
 531       PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
 532       PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS))
 533       PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
 534       FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
 535
 536       ifneq ($(feature-libpython), 1)
 537         $(call disable-python,Python.h (for Python 2.x))
 538       else
 539
 540         ifneq ($(feature-libpython-version), 1)
 541           $(warning Python 3 is not yet supported; please set)
 542           $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
 543           $(warning If you also have Python 2 installed, then)
 544           $(warning try something like:)
 545           $(warning $(and ,))
 546           $(warning $(and ,)  make PYTHON=python2)
 547           $(warning $(and ,))
 548           $(warning Otherwise, disable Python support entirely:)
 549           $(warning $(and ,))
 550           $(warning $(and ,)  make NO_LIBPYTHON=1)
 551           $(warning $(and ,))
 552           $(error   $(and ,))
 553         else
 554           LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
 555           EXTLIBS += $(PYTHON_EMBED_LIBADD)
 556           LANG_BINDINGS += $(obj-perf)python/perf.so
 557         endif
 558       endif
 559     endif
 560   endif
 561 endif
 562
 563 ifeq ($(feature-libbfd), 1)
 564   EXTLIBS += -lbfd
 565
 566   # call all detections now so we get correct
 567   # status in VF output
 568   $(call feature_check,liberty)
 569   $(call feature_check,liberty-z)
 570   $(call feature_check,cplus-demangle)
 571
 572   ifeq ($(feature-liberty), 1)
 573     EXTLIBS += -liberty
 574   else
 575     ifeq ($(feature-liberty-z), 1)
 576       EXTLIBS += -liberty -lz
 577     endif
 578   endif
 579 endif
 580
 581 ifdef NO_DEMANGLE
 582   CFLAGS += -DNO_DEMANGLE
 583 else
 584   ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
 585     EXTLIBS += -liberty
 586     CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 587   else
 588     ifneq ($(feature-libbfd), 1)
 589       ifneq ($(feature-liberty), 1)
 590         ifneq ($(feature-liberty-z), 1)
 591           # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
 592           # or any of 'bfd iberty z' trinity
 593           ifeq ($(feature-cplus-demangle), 1)
 594             EXTLIBS += -liberty
 595             CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 596           else
 597             msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
 598             CFLAGS += -DNO_DEMANGLE
 599           endif
 600         endif
 601       endif
 602     endif
 603   endif
 604 endif
 605
 606 ifneq ($(filter -lbfd,$(EXTLIBS)),)
 607   CFLAGS += -DHAVE_LIBBFD_SUPPORT
 608 endif
 609
 610 ifndef NO_ZLIB
 611   ifeq ($(feature-zlib), 1)
 612     CFLAGS += -DHAVE_ZLIB_SUPPORT
 613     EXTLIBS += -lz
 614   else
 615     NO_ZLIB := 1
 616   endif
 617 endif
 618
 619 ifndef NO_BACKTRACE
 620   ifeq ($(feature-backtrace), 1)
 621     CFLAGS += -DHAVE_BACKTRACE_SUPPORT
 622   endif
 623 endif
 624
 625 ifndef NO_LIBNUMA
 626   ifeq ($(feature-libnuma), 0)
 627     msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
 628     NO_LIBNUMA := 1
 629   else
 630     CFLAGS += -DHAVE_LIBNUMA_SUPPORT
 631     EXTLIBS += -lnuma
 632   endif
 633 endif
 634
 635 ifdef HAVE_KVM_STAT_SUPPORT
 636     CFLAGS += -DHAVE_KVM_STAT_SUPPORT
 637 endif
 638
 639 ifeq (${IS_64_BIT}, 1)
 640   ifndef NO_PERF_READ_VDSO32
 641     $(call feature_check,compile-32)
 642     ifeq ($(feature-compile-32), 1)
 643       CFLAGS += -DHAVE_PERF_READ_VDSO32
 644     else
 645       NO_PERF_READ_VDSO32 := 1
 646     endif
 647   endif
 648   ifneq (${IS_X86_64}, 1)
 649     NO_PERF_READ_VDSOX32 := 1
 650   endif
 651   ifndef NO_PERF_READ_VDSOX32
 652     $(call feature_check,compile-x32)
 653     ifeq ($(feature-compile-x32), 1)
 654       CFLAGS += -DHAVE_PERF_READ_VDSOX32
 655     else
 656       NO_PERF_READ_VDSOX32 := 1
 657     endif
 658   endif
 659 else
 660   NO_PERF_READ_VDSO32 := 1
 661   NO_PERF_READ_VDSOX32 := 1
 662 endif
 663
 664 # Among the variables below, these:
 665 #   perfexecdir
 666 #   template_dir
 667 #   mandir
 668 #   infodir
 669 #   htmldir
 670 #   ETC_PERFCONFIG (but not sysconfdir)
 671 # can be specified as a relative path some/where/else;
 672 # this is interpreted as relative to $(prefix) and "perf" at
 673 # runtime figures out where they are based on the path to the executable.
 674 # This can help installing the suite in a relocatable way.
 675
 676 # Make the path relative to DESTDIR, not to prefix
 677 ifndef DESTDIR
 678 prefix ?= $(HOME)
 679 endif
 680 bindir_relative = bin
 681 bindir = $(prefix)/$(bindir_relative)
 682 mandir = share/man
 683 infodir = share/info
 684 perfexecdir = libexec/perf-core
 685 sharedir = $(prefix)/share
 686 template_dir = share/perf-core/templates
 687 htmldir = share/doc/perf-doc
 688 ifeq ($(prefix),/usr)
 689 sysconfdir = /etc
 690 ETC_PERFCONFIG = $(sysconfdir)/perfconfig
 691 else
 692 sysconfdir = $(prefix)/etc
 693 ETC_PERFCONFIG = etc/perfconfig
 694 endif
 695 ifndef lib
 696 ifeq ($(IS_X86_64),1)
 697 lib = lib64
 698 else
 699 lib = lib
 700 endif
 701 endif # lib
 702 libdir = $(prefix)/$(lib)
 703
 704 # Shell quote (do not use $(call) to accommodate ancient setups);
 705 ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
 706 DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
 707 bindir_SQ = $(subst ','\'',$(bindir))
 708 mandir_SQ = $(subst ','\'',$(mandir))
 709 infodir_SQ = $(subst ','\'',$(infodir))
 710 perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
 711 template_dir_SQ = $(subst ','\'',$(template_dir))
 712 htmldir_SQ = $(subst ','\'',$(htmldir))
 713 prefix_SQ = $(subst ','\'',$(prefix))
 714 sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
 715 libdir_SQ = $(subst ','\'',$(libdir))
 716
 717 ifneq ($(filter /%,$(firstword $(perfexecdir))),)
 718 perfexec_instdir = $(perfexecdir)
 719 else
 720 perfexec_instdir = $(prefix)/$(perfexecdir)
 721 endif
 722 perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
 723
 724 # If we install to $(HOME) we keep the traceevent default:
 725 # $(HOME)/.traceevent/plugins
 726 # Otherwise we install plugins into the global $(libdir).
 727 ifdef DESTDIR
 728 plugindir=$(libdir)/traceevent/plugins
 729 plugindir_SQ= $(subst ','\'',$(plugindir))
 730 endif
 731
 732 #
 733 # Print the result of the feature test:
 734 #
 735 feature_print_status = $(eval $(feature_print_status_code)) $(info $(MSG))
 736
 737 define feature_print_status_code
 738   ifeq ($(feature-$(1)), 1)
 739     MSG = $(shell printf '...%30s: [ \033[32mon\033[m  ]' $(1))
 740   else
 741     MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
 742   endif
 743 endef
 744
 745 feature_print_var = $(eval $(feature_print_var_code)) $(info $(MSG))
 746 define feature_print_var_code
 747     MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
 748 endef
 749
 750 feature_print_text = $(eval $(feature_print_text_code)) $(info $(MSG))
 751 define feature_print_text_code
 752     MSG = $(shell printf '...%30s: %s' $(1) $(2))
 753 endef
 754
 755 PERF_FEATURES := $(foreach feat,$(LIB_FEATURE_TESTS),feature-$(feat)($(feature-$(feat))))
 756 PERF_FEATURES_FILE := $(shell touch $(OUTPUT)PERF-FEATURES; cat $(OUTPUT)PERF-FEATURES)
 757
 758 ifeq ($(dwarf-post-unwind),1)
 759   PERF_FEATURES += dwarf-post-unwind($(dwarf-post-unwind-text))
 760 endif
 761
 762 # The $(display_lib) controls the default detection message
 763 # output. It's set if:
 764 # - detected features differes from stored features from
 765 #   last build (in PERF-FEATURES file)
 766 # - one of the $(LIB_FEATURE_TESTS) is not detected
 767 # - VF is enabled
 768
 769 ifneq ("$(PERF_FEATURES)","$(PERF_FEATURES_FILE)")
 770   $(shell echo "$(PERF_FEATURES)" > $(OUTPUT)PERF-FEATURES)
 771   display_lib := 1
 772 endif
 773
 774 feature_check = $(eval $(feature_check_code))
 775 define feature_check_code
 776   ifneq ($(feature-$(1)), 1)
 777     display_lib := 1
 778   endif
 779 endef
 780
 781 $(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_check,$(feat)))
 782
 783 ifeq ($(VF),1)
 784   display_lib := 1
 785   display_vf := 1
 786 endif
 787
 788 ifeq ($(display_lib),1)
 789   $(info )
 790   $(info Auto-detecting system features:)
 791   $(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_print_status,$(feat),))
 792
 793   ifeq ($(dwarf-post-unwind),1)
 794     $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
 795   endif
 796 endif
 797
 798 ifeq ($(display_vf),1)
 799   $(foreach feat,$(VF_FEATURE_TESTS),$(call feature_print_status,$(feat),))
 800   $(info )
 801   $(call feature_print_var,prefix)
 802   $(call feature_print_var,bindir)
 803   $(call feature_print_var,libdir)
 804   $(call feature_print_var,sysconfdir)
 805   $(call feature_print_var,LIBUNWIND_DIR)
 806   $(call feature_print_var,LIBDW_DIR)
 807 endif
 808
 809 ifeq ($(display_lib),1)
 810   $(info )
 811 endif