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 $(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$(srctree)/arch/$(ARCH)/include/uapi -I$(srctree)/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 endif
 140
 141 ifndef DEBUG
 142   DEBUG := 0
 143 endif
 144
 145 ifeq ($(DEBUG),0)
 146   CFLAGS += -O6
 147 endif
 148
 149 ifdef PARSER_DEBUG
 150   PARSER_DEBUG_BISON := -t
 151   PARSER_DEBUG_FLEX  := -d
 152   CFLAGS             += -DPARSER_DEBUG
 153   $(call detected_var,PARSER_DEBUG_BISON)
 154   $(call detected_var,PARSER_DEBUG_FLEX)
 155 endif
 156
 157 # Try different combinations to accommodate systems that only have
 158 # python[2][-config] in weird combinations but always preferring
 159 # python2 and python2-config as per pep-0394. If we catch a
 160 # python[-config] in version 3, the version check will kill it.
 161 PYTHON2 := $(if $(call get-executable,python2),python2,python)
 162 override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2))
 163 PYTHON2_CONFIG := \
 164   $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
 165 override PYTHON_CONFIG := \
 166   $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG))
 167
 168 PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
 169
 170 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
 171 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
 172
 173 FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
 174 FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
 175 FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
 176 FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
 177
 178 CFLAGS += -fno-omit-frame-pointer
 179 CFLAGS += -ggdb3
 180 CFLAGS += -funwind-tables
 181 CFLAGS += -Wall
 182 CFLAGS += -Wextra
 183 CFLAGS += -std=gnu99
 184
 185 # Enforce a non-executable stack, as we may regress (again) in the future by
 186 # adding assembler files missing the .GNU-stack linker note.
 187 LDFLAGS += -Wl,-z,noexecstack
 188
 189 EXTLIBS = -lpthread -lrt -lm -ldl
 190
 191 ifeq ($(FEATURES_DUMP),)
 192 include $(srctree)/tools/build/Makefile.feature
 193 else
 194 include $(FEATURES_DUMP)
 195 endif
 196
 197 ifeq ($(feature-stackprotector-all), 1)
 198   CFLAGS += -fstack-protector-all
 199 endif
 200
 201 ifeq ($(DEBUG),0)
 202   ifeq ($(feature-fortify-source), 1)
 203     CFLAGS += -D_FORTIFY_SOURCE=2
 204   endif
 205 endif
 206
 207 CFLAGS += -I$(src-perf)/util/include
 208 CFLAGS += -I$(src-perf)/arch/$(ARCH)/include
 209 CFLAGS += -I$(srctree)/tools/include/
 210 CFLAGS += -I$(srctree)/arch/$(ARCH)/include/uapi
 211 CFLAGS += -I$(srctree)/arch/$(ARCH)/include
 212 CFLAGS += -I$(srctree)/include/uapi
 213 CFLAGS += -I$(srctree)/include
 214
 215 # $(obj-perf)      for generated common-cmds.h
 216 # $(obj-perf)/util for generated bison/flex headers
 217 ifneq ($(OUTPUT),)
 218 CFLAGS += -I$(obj-perf)/util
 219 CFLAGS += -I$(obj-perf)
 220 endif
 221
 222 CFLAGS += -I$(src-perf)/util
 223 CFLAGS += -I$(src-perf)
 224 CFLAGS += -I$(srctree)/tools/lib/
 225
 226 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 227
 228 ifeq ($(feature-sync-compare-and-swap), 1)
 229   CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
 230 endif
 231
 232 ifeq ($(feature-pthread-attr-setaffinity-np), 1)
 233   CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
 234 endif
 235
 236 ifndef NO_BIONIC
 237   $(call feature_check,bionic)
 238   ifeq ($(feature-bionic), 1)
 239     BIONIC := 1
 240     EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
 241     EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
 242   endif
 243 endif
 244
 245 ifdef NO_LIBELF
 246   NO_DWARF := 1
 247   NO_DEMANGLE := 1
 248   NO_LIBUNWIND := 1
 249   NO_LIBDW_DWARF_UNWIND := 1
 250   NO_LIBBPF := 1
 251 else
 252   ifeq ($(feature-libelf), 0)
 253     ifeq ($(feature-glibc), 1)
 254       LIBC_SUPPORT := 1
 255     endif
 256     ifeq ($(BIONIC),1)
 257       LIBC_SUPPORT := 1
 258     endif
 259     ifeq ($(LIBC_SUPPORT),1)
 260       msg := $(warning No libelf found, disables 'probe' tool and BPF support in 'perf record', please install elfutils-libelf-devel/libelf-dev);
 261
 262       NO_LIBELF := 1
 263       NO_DWARF := 1
 264       NO_DEMANGLE := 1
 265       NO_LIBUNWIND := 1
 266       NO_LIBDW_DWARF_UNWIND := 1
 267       NO_LIBBPF := 1
 268     else
 269       ifneq ($(filter s% -static%,$(LDFLAGS),),)
 270         msg := $(error No static glibc found, please install glibc-static);
 271       else
 272         msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
 273       endif
 274     endif
 275   else
 276     ifndef NO_LIBDW_DWARF_UNWIND
 277       ifneq ($(feature-libdw-dwarf-unwind),1)
 278         NO_LIBDW_DWARF_UNWIND := 1
 279         msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
 280       endif
 281     endif
 282     ifneq ($(feature-dwarf), 1)
 283       msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
 284       NO_DWARF := 1
 285     else
 286       ifneq ($(feature-dwarf_getlocations), 1)
 287         msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
 288       else
 289         CFLAGS += -DHAVE_DWARF_GETLOCATIONS
 290       endif # dwarf_getlocations
 291     endif # Dwarf support
 292   endif # libelf support
 293 endif # NO_LIBELF
 294
 295 ifdef NO_DWARF
 296   NO_LIBDW_DWARF_UNWIND := 1
 297 endif
 298
 299 ifndef NO_LIBELF
 300   CFLAGS += -DHAVE_LIBELF_SUPPORT
 301   EXTLIBS += -lelf
 302   $(call detected,CONFIG_LIBELF)
 303
 304   ifeq ($(feature-libelf-mmap), 1)
 305     CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
 306   endif
 307
 308   ifeq ($(feature-libelf-getphdrnum), 1)
 309     CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
 310   endif
 311
 312   ifndef NO_DWARF
 313     ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
 314       msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
 315       NO_DWARF := 1
 316     else
 317       CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
 318       LDFLAGS += $(LIBDW_LDFLAGS)
 319       DWARFLIBS := -ldw
 320       ifeq ($(findstring -static,${LDFLAGS}),-static)
 321         DWARFLIBS += -lelf -lebl -lz -llzma -lbz2
 322       endif
 323       EXTLIBS += ${DWARFLIBS}
 324       $(call detected,CONFIG_DWARF)
 325     endif # PERF_HAVE_DWARF_REGS
 326   endif # NO_DWARF
 327
 328   ifndef NO_LIBBPF
 329     ifeq ($(feature-bpf), 1)
 330       CFLAGS += -DHAVE_LIBBPF_SUPPORT
 331       $(call detected,CONFIG_LIBBPF)
 332     endif
 333
 334     ifndef NO_DWARF
 335       ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 336         CFLAGS += -DHAVE_BPF_PROLOGUE
 337         $(call detected,CONFIG_BPF_PROLOGUE)
 338       else
 339         msg := $(warning BPF prologue is not supported by architecture $(ARCH), missing regs_query_register_offset());
 340       endif
 341     else
 342       msg := $(warning DWARF support is off, BPF prologue is disabled);
 343     endif
 344
 345   endif # NO_LIBBPF
 346 endif # NO_LIBELF
 347
 348 ifdef PERF_HAVE_JITDUMP
 349   ifndef NO_DWARF
 350     $(call detected,CONFIG_JITDUMP)
 351     CFLAGS += -DHAVE_JITDUMP
 352   endif
 353 endif
 354
 355 ifeq ($(ARCH),powerpc)
 356   ifndef NO_DWARF
 357     CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
 358   endif
 359 endif
 360
 361 ifndef NO_LIBUNWIND
 362   have_libunwind :=
 363
 364   ifeq ($(feature-libunwind-x86), 1)
 365     $(call detected,CONFIG_LIBUNWIND_X86)
 366     CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
 367     LDFLAGS += -lunwind-x86
 368     have_libunwind = 1
 369   endif
 370
 371   ifeq ($(feature-libunwind-aarch64), 1)
 372     $(call detected,CONFIG_LIBUNWIND_AARCH64)
 373     CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
 374     LDFLAGS += -lunwind-aarch64
 375     have_libunwind = 1
 376     $(call feature_check,libunwind-debug-frame-aarch64)
 377     ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
 378       msg := $(warning No debug_frame support found in libunwind-aarch64);
 379       CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
 380     endif
 381   endif
 382
 383   ifneq ($(feature-libunwind), 1)
 384     msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
 385     NO_LOCAL_LIBUNWIND := 1
 386   else
 387     have_libunwind := 1
 388     $(call detected,CONFIG_LOCAL_LIBUNWIND)
 389   endif
 390
 391   ifneq ($(have_libunwind), 1)
 392     NO_LIBUNWIND := 1
 393   endif
 394 else
 395   NO_LOCAL_LIBUNWIND := 1
 396 endif
 397
 398 ifndef NO_LIBBPF
 399   ifneq ($(feature-bpf), 1)
 400     msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
 401     NO_LIBBPF := 1
 402   endif
 403 endif
 404
 405 dwarf-post-unwind := 1
 406 dwarf-post-unwind-text := BUG
 407
 408 # setup DWARF post unwinder
 409 ifdef NO_LIBUNWIND
 410   ifdef NO_LIBDW_DWARF_UNWIND
 411     msg := $(warning Disabling post unwind, no support found.);
 412     dwarf-post-unwind := 0
 413   else
 414     dwarf-post-unwind-text := libdw
 415     $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
 416   endif
 417 else
 418   dwarf-post-unwind-text := libunwind
 419   $(call detected,CONFIG_LIBUNWIND)
 420   # Enable libunwind support by default.
 421   ifndef NO_LIBDW_DWARF_UNWIND
 422     NO_LIBDW_DWARF_UNWIND := 1
 423   endif
 424 endif
 425
 426 ifeq ($(dwarf-post-unwind),1)
 427   CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
 428   $(call detected,CONFIG_DWARF_UNWIND)
 429 else
 430   NO_DWARF_UNWIND := 1
 431 endif
 432
 433 ifndef NO_LOCAL_LIBUNWIND
 434   ifeq ($(ARCH),$(filter $(ARCH),arm arm64))
 435     $(call feature_check,libunwind-debug-frame)
 436     ifneq ($(feature-libunwind-debug-frame), 1)
 437       msg := $(warning No debug_frame support found in libunwind);
 438       CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 439     endif
 440   else
 441     # non-ARM has no dwarf_find_debug_frame() function:
 442     CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 443   endif
 444   EXTLIBS += $(LIBUNWIND_LIBS)
 445   LDFLAGS += $(LIBUNWIND_LIBS)
 446 endif
 447
 448 ifndef NO_LIBUNWIND
 449   CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
 450   CFLAGS  += $(LIBUNWIND_CFLAGS)
 451   LDFLAGS += $(LIBUNWIND_LDFLAGS)
 452 endif
 453
 454 ifndef NO_LIBAUDIT
 455   ifneq ($(feature-libaudit), 1)
 456     msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
 457     NO_LIBAUDIT := 1
 458   else
 459     CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
 460     EXTLIBS += -laudit
 461     $(call detected,CONFIG_AUDIT)
 462   endif
 463 endif
 464
 465 ifndef NO_LIBCRYPTO
 466   ifneq ($(feature-libcrypto), 1)
 467     msg := $(warning No libcrypto.h found, disables jitted code injection, please install libssl-devel or libssl-dev);
 468     NO_LIBCRYPTO := 1
 469   else
 470     CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
 471     EXTLIBS += -lcrypto
 472     $(call detected,CONFIG_CRYPTO)
 473   endif
 474 endif
 475
 476 ifdef NO_NEWT
 477   NO_SLANG=1
 478 endif
 479
 480 ifndef NO_SLANG
 481   ifneq ($(feature-libslang), 1)
 482     msg := $(warning slang not found, disables TUI support. Please install slang-devel or libslang-dev);
 483     NO_SLANG := 1
 484   else
 485     # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
 486     CFLAGS += -I/usr/include/slang
 487     CFLAGS += -DHAVE_SLANG_SUPPORT
 488     EXTLIBS += -lslang
 489     $(call detected,CONFIG_SLANG)
 490   endif
 491 endif
 492
 493 ifndef NO_GTK2
 494   FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
 495   ifneq ($(feature-gtk2), 1)
 496     msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
 497     NO_GTK2 := 1
 498   else
 499     ifeq ($(feature-gtk2-infobar), 1)
 500       GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
 501     endif
 502     CFLAGS += -DHAVE_GTK2_SUPPORT
 503     GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
 504     GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
 505     EXTLIBS += -ldl
 506   endif
 507 endif
 508
 509 grep-libs  = $(filter -l%,$(1))
 510 strip-libs = $(filter-out -l%,$(1))
 511
 512 ifdef NO_LIBPERL
 513   CFLAGS += -DNO_LIBPERL
 514 else
 515   PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
 516   PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
 517   PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
 518   PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
 519   FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 520
 521   ifneq ($(feature-libperl), 1)
 522     CFLAGS += -DNO_LIBPERL
 523     NO_LIBPERL := 1
 524     msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
 525   else
 526     LDFLAGS += $(PERL_EMBED_LDFLAGS)
 527     EXTLIBS += $(PERL_EMBED_LIBADD)
 528     $(call detected,CONFIG_LIBPERL)
 529   endif
 530 endif
 531
 532 ifeq ($(feature-timerfd), 1)
 533   CFLAGS += -DHAVE_TIMERFD_SUPPORT
 534 else
 535   msg := $(warning No timerfd support. Disables 'perf kvm stat live');
 536 endif
 537
 538 disable-python = $(eval $(disable-python_code))
 539 define disable-python_code
 540   CFLAGS += -DNO_LIBPYTHON
 541   $(warning $1)
 542   NO_LIBPYTHON := 1
 543 endef
 544
 545 ifdef NO_LIBPYTHON
 546   $(call disable-python,Python support disabled by user)
 547 else
 548
 549   ifndef PYTHON
 550     $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
 551   else
 552     PYTHON_WORD := $(call shell-wordify,$(PYTHON))
 553
 554     ifndef PYTHON_CONFIG
 555       $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
 556     else
 557
 558       PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
 559
 560       PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
 561       PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
 562       PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
 563       PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
 564       FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
 565
 566       ifneq ($(feature-libpython), 1)
 567         $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
 568       else
 569
 570         ifneq ($(feature-libpython-version), 1)
 571           $(warning Python 3 is not yet supported; please set)
 572           $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
 573           $(warning If you also have Python 2 installed, then)
 574           $(warning try something like:)
 575           $(warning $(and ,))
 576           $(warning $(and ,)  make PYTHON=python2)
 577           $(warning $(and ,))
 578           $(warning Otherwise, disable Python support entirely:)
 579           $(warning $(and ,))
 580           $(warning $(and ,)  make NO_LIBPYTHON=1)
 581           $(warning $(and ,))
 582           $(error   $(and ,))
 583         else
 584           LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
 585           EXTLIBS += $(PYTHON_EMBED_LIBADD)
 586           LANG_BINDINGS += $(obj-perf)python/perf.so
 587           $(call detected,CONFIG_LIBPYTHON)
 588         endif
 589       endif
 590     endif
 591   endif
 592 endif
 593
 594 ifeq ($(feature-libbfd), 1)
 595   EXTLIBS += -lbfd
 596
 597   # call all detections now so we get correct
 598   # status in VF output
 599   $(call feature_check,liberty)
 600   $(call feature_check,liberty-z)
 601   $(call feature_check,cplus-demangle)
 602
 603   ifeq ($(feature-liberty), 1)
 604     EXTLIBS += -liberty
 605   else
 606     ifeq ($(feature-liberty-z), 1)
 607       EXTLIBS += -liberty -lz
 608     endif
 609   endif
 610 endif
 611
 612 ifdef NO_DEMANGLE
 613   CFLAGS += -DNO_DEMANGLE
 614 else
 615   ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
 616     EXTLIBS += -liberty
 617     CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 618   else
 619     ifneq ($(feature-libbfd), 1)
 620       ifneq ($(feature-liberty), 1)
 621         ifneq ($(feature-liberty-z), 1)
 622           # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
 623           # or any of 'bfd iberty z' trinity
 624           ifeq ($(feature-cplus-demangle), 1)
 625             EXTLIBS += -liberty
 626             CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 627           else
 628             msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
 629             CFLAGS += -DNO_DEMANGLE
 630           endif
 631         endif
 632       endif
 633     endif
 634   endif
 635 endif
 636
 637 ifneq ($(filter -lbfd,$(EXTLIBS)),)
 638   CFLAGS += -DHAVE_LIBBFD_SUPPORT
 639 endif
 640
 641 ifndef NO_ZLIB
 642   ifeq ($(feature-zlib), 1)
 643     CFLAGS += -DHAVE_ZLIB_SUPPORT
 644     EXTLIBS += -lz
 645     $(call detected,CONFIG_ZLIB)
 646   else
 647     NO_ZLIB := 1
 648   endif
 649 endif
 650
 651 ifndef NO_LZMA
 652   ifeq ($(feature-lzma), 1)
 653     CFLAGS += -DHAVE_LZMA_SUPPORT
 654     EXTLIBS += -llzma
 655     $(call detected,CONFIG_LZMA)
 656   else
 657     msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
 658     NO_LZMA := 1
 659   endif
 660 endif
 661
 662 ifndef NO_BACKTRACE
 663   ifeq ($(feature-backtrace), 1)
 664     CFLAGS += -DHAVE_BACKTRACE_SUPPORT
 665   endif
 666 endif
 667
 668 ifndef NO_LIBNUMA
 669   ifeq ($(feature-libnuma), 0)
 670     msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
 671     NO_LIBNUMA := 1
 672   else
 673     ifeq ($(feature-numa_num_possible_cpus), 0)
 674       msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
 675       NO_LIBNUMA := 1
 676     else
 677       CFLAGS += -DHAVE_LIBNUMA_SUPPORT
 678       EXTLIBS += -lnuma
 679       $(call detected,CONFIG_NUMA)
 680     endif
 681   endif
 682 endif
 683
 684 ifdef HAVE_KVM_STAT_SUPPORT
 685     CFLAGS += -DHAVE_KVM_STAT_SUPPORT
 686 endif
 687
 688 ifeq (${IS_64_BIT}, 1)
 689   ifndef NO_PERF_READ_VDSO32
 690     $(call feature_check,compile-32)
 691     ifeq ($(feature-compile-32), 1)
 692       CFLAGS += -DHAVE_PERF_READ_VDSO32
 693     else
 694       NO_PERF_READ_VDSO32 := 1
 695     endif
 696   endif
 697   ifneq ($(ARCH), x86)
 698     NO_PERF_READ_VDSOX32 := 1
 699   endif
 700   ifndef NO_PERF_READ_VDSOX32
 701     $(call feature_check,compile-x32)
 702     ifeq ($(feature-compile-x32), 1)
 703       CFLAGS += -DHAVE_PERF_READ_VDSOX32
 704     else
 705       NO_PERF_READ_VDSOX32 := 1
 706     endif
 707   endif
 708 else
 709   NO_PERF_READ_VDSO32 := 1
 710   NO_PERF_READ_VDSOX32 := 1
 711 endif
 712
 713 ifdef LIBBABELTRACE
 714   $(call feature_check,libbabeltrace)
 715   ifeq ($(feature-libbabeltrace), 1)
 716     CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
 717     LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
 718     EXTLIBS += -lbabeltrace-ctf
 719     $(call detected,CONFIG_LIBBABELTRACE)
 720   else
 721     msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
 722   endif
 723 endif
 724
 725 ifndef NO_AUXTRACE
 726   ifeq ($(feature-get_cpuid), 0)
 727     msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
 728     NO_AUXTRACE := 1
 729   else
 730     $(call detected,CONFIG_AUXTRACE)
 731     CFLAGS += -DHAVE_AUXTRACE_SUPPORT
 732   endif
 733 endif
 734
 735 # Among the variables below, these:
 736 #   perfexecdir
 737 #   template_dir
 738 #   mandir
 739 #   infodir
 740 #   htmldir
 741 #   ETC_PERFCONFIG (but not sysconfdir)
 742 # can be specified as a relative path some/where/else;
 743 # this is interpreted as relative to $(prefix) and "perf" at
 744 # runtime figures out where they are based on the path to the executable.
 745 # This can help installing the suite in a relocatable way.
 746
 747 # Make the path relative to DESTDIR, not to prefix
 748 ifndef DESTDIR
 749 prefix ?= $(HOME)
 750 endif
 751 bindir_relative = bin
 752 bindir = $(abspath $(prefix)/$(bindir_relative))
 753 mandir = share/man
 754 infodir = share/info
 755 perfexecdir = libexec/perf-core
 756 sharedir = $(prefix)/share
 757 template_dir = share/perf-core/templates
 758 STRACE_GROUPS_DIR = share/perf-core/strace/groups
 759 htmldir = share/doc/perf-doc
 760 tipdir = share/doc/perf-tip
 761 srcdir = $(srctree)/tools/perf
 762 ifeq ($(prefix),/usr)
 763 sysconfdir = /etc
 764 ETC_PERFCONFIG = $(sysconfdir)/perfconfig
 765 else
 766 sysconfdir = $(prefix)/etc
 767 ETC_PERFCONFIG = etc/perfconfig
 768 endif
 769 ifndef lib
 770 ifeq ($(ARCH)$(IS_64_BIT), x861)
 771 lib = lib64
 772 else
 773 lib = lib
 774 endif
 775 endif # lib
 776 libdir = $(prefix)/$(lib)
 777
 778 # Shell quote (do not use $(call) to accommodate ancient setups);
 779 ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
 780 STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
 781 DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
 782 bindir_SQ = $(subst ','\'',$(bindir))
 783 mandir_SQ = $(subst ','\'',$(mandir))
 784 infodir_SQ = $(subst ','\'',$(infodir))
 785 perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
 786 template_dir_SQ = $(subst ','\'',$(template_dir))
 787 htmldir_SQ = $(subst ','\'',$(htmldir))
 788 tipdir_SQ = $(subst ','\'',$(tipdir))
 789 prefix_SQ = $(subst ','\'',$(prefix))
 790 sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
 791 libdir_SQ = $(subst ','\'',$(libdir))
 792 srcdir_SQ = $(subst ','\'',$(srcdir))
 793
 794 ifneq ($(filter /%,$(firstword $(perfexecdir))),)
 795 perfexec_instdir = $(perfexecdir)
 796 STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
 797 tip_instdir = $(tipdir)
 798 else
 799 perfexec_instdir = $(prefix)/$(perfexecdir)
 800 STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
 801 tip_instdir = $(prefix)/$(tipdir)
 802 endif
 803 perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
 804 STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
 805 tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
 806
 807 # If we install to $(HOME) we keep the traceevent default:
 808 # $(HOME)/.traceevent/plugins
 809 # Otherwise we install plugins into the global $(libdir).
 810 ifdef DESTDIR
 811 plugindir=$(libdir)/traceevent/plugins
 812 plugindir_SQ= $(subst ','\'',$(plugindir))
 813 endif
 814
 815 print_var = $(eval $(print_var_code)) $(info $(MSG))
 816 define print_var_code
 817     MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
 818 endef
 819
 820 ifeq ($(VF),1)
 821   $(call print_var,prefix)
 822   $(call print_var,bindir)
 823   $(call print_var,libdir)
 824   $(call print_var,sysconfdir)
 825   $(call print_var,LIBUNWIND_DIR)
 826   $(call print_var,LIBDW_DIR)
 827
 828   ifeq ($(dwarf-post-unwind),1)
 829     $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
 830   endif
 831   $(info )
 832 endif
 833
 834 $(call detected_var,bindir_SQ)
 835 $(call detected_var,PYTHON_WORD)
 836 ifneq ($(OUTPUT),)
 837 $(call detected_var,OUTPUT)
 838 endif
 839 $(call detected_var,htmldir_SQ)
 840 $(call detected_var,infodir_SQ)
 841 $(call detected_var,mandir_SQ)
 842 $(call detected_var,ETC_PERFCONFIG_SQ)
 843 $(call detected_var,STRACE_GROUPS_DIR_SQ)
 844 $(call detected_var,prefix_SQ)
 845 $(call detected_var,perfexecdir_SQ)
 846 $(call detected_var,tipdir_SQ)
 847 $(call detected_var,srcdir_SQ)
 848 $(call detected_var,LIBDIR)
 849 $(call detected_var,GTK_CFLAGS)
 850 $(call detected_var,PERL_EMBED_CCOPTS)
 851 $(call detected_var,PYTHON_EMBED_CCOPTS)