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 $(call detected_var,SRCARCH)
  23
  24 NO_PERF_REGS := 1
  25
  26 # Additional ARCH settings for ppc
  27 ifeq ($(SRCARCH),powerpc)
  28   NO_PERF_REGS := 0
  29   LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
  30 endif
  31
  32 # Additional ARCH settings for x86
  33 ifeq ($(SRCARCH),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-x86_64 -lunwind -llzma
  39     $(call detected,CONFIG_X86_64)
  40   else
  41     LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
  42   endif
  43   NO_PERF_REGS := 0
  44 endif
  45
  46 ifeq ($(SRCARCH),arm)
  47   NO_PERF_REGS := 0
  48   LIBUNWIND_LIBS = -lunwind -lunwind-arm
  49 endif
  50
  51 ifeq ($(SRCARCH),arm64)
  52   NO_PERF_REGS := 0
  53   LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
  54 endif
  55
  56 ifeq ($(ARCH),s390)
  57   NO_PERF_REGS := 0
  58 endif
  59
  60 ifeq ($(NO_PERF_REGS),0)
  61   $(call detected,CONFIG_PERF_REGS)
  62 endif
  63
  64 # So far there's only x86 and arm libdw unwind support merged in perf.
  65 # Disable it on all other architectures in case libdw unwind
  66 # support is detected in system. Add supported architectures
  67 # to the check.
  68 ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm powerpc s390))
  69   NO_LIBDW_DWARF_UNWIND := 1
  70 endif
  71
  72 ifeq ($(LIBUNWIND_LIBS),)
  73   NO_LIBUNWIND := 1
  74 endif
  75 #
  76 # For linking with debug library, run like:
  77 #
  78 #   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
  79 #
  80
  81 libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
  82 define libunwind_arch_set_flags_code
  83   FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
  84   FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
  85 endef
  86
  87 ifdef LIBUNWIND_DIR
  88   LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
  89   LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
  90   LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
  91   $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
  92 endif
  93
  94 # Set per-feature check compilation flags
  95 FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
  96 FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
  97 FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
  98 FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
  99
 100 ifeq ($(NO_PERF_REGS),0)
 101   CFLAGS += -DHAVE_PERF_REGS_SUPPORT
 102 endif
 103
 104 # for linking with debug library, run like:
 105 # make DEBUG=1 LIBDW_DIR=/opt/libdw/
 106 ifdef LIBDW_DIR
 107   LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
 108   LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
 109 endif
 110 DWARFLIBS := -ldw
 111 ifeq ($(findstring -static,${LDFLAGS}),-static)
 112   DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
 113 endif
 114 FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
 115 FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
 116
 117 # for linking with debug library, run like:
 118 # make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
 119 ifdef LIBBABELTRACE_DIR
 120   LIBBABELTRACE_CFLAGS  := -I$(LIBBABELTRACE_DIR)/include
 121   LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
 122 endif
 123 FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
 124 FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
 125
 126 FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
 127 # include ARCH specific config
 128 -include $(src-perf)/arch/$(SRCARCH)/Makefile
 129
 130 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 131   CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 132 endif
 133
 134 include $(srctree)/tools/scripts/utilities.mak
 135
 136 ifeq ($(call get-executable,$(FLEX)),)
 137   dummy := $(error Error: $(FLEX) is missing on this system, please install it)
 138 endif
 139
 140 ifeq ($(call get-executable,$(BISON)),)
 141   dummy := $(error Error: $(BISON) is missing on this system, please install it)
 142 endif
 143
 144 # Treat warnings as errors unless directed not to
 145 ifneq ($(WERROR),0)
 146   CFLAGS += -Werror
 147   CXXFLAGS += -Werror
 148 endif
 149
 150 ifndef DEBUG
 151   DEBUG := 0
 152 endif
 153
 154 ifeq ($(DEBUG),0)
 155 ifeq ($(CC_NO_CLANG), 0)
 156   CFLAGS += -O3
 157 else
 158   CFLAGS += -O6
 159 endif
 160 endif
 161
 162 ifdef PARSER_DEBUG
 163   PARSER_DEBUG_BISON := -t
 164   PARSER_DEBUG_FLEX  := -d
 165   CFLAGS             += -DPARSER_DEBUG
 166   $(call detected_var,PARSER_DEBUG_BISON)
 167   $(call detected_var,PARSER_DEBUG_FLEX)
 168 endif
 169
 170 # Try different combinations to accommodate systems that only have
 171 # python[2][-config] in weird combinations but always preferring
 172 # python2 and python2-config as per pep-0394. If we catch a
 173 # python[-config] in version 3, the version check will kill it.
 174 PYTHON2 := $(if $(call get-executable,python2),python2,python)
 175 override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2))
 176 PYTHON2_CONFIG := \
 177   $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
 178 override PYTHON_CONFIG := \
 179   $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG))
 180
 181 grep-libs  = $(filter -l%,$(1))
 182 strip-libs  = $(filter-out -l%,$(1))
 183
 184 PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
 185
 186 ifdef PYTHON_CONFIG
 187   PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
 188   PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
 189   PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
 190   PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
 191   ifeq ($(CC_NO_CLANG), 1)
 192     PYTHON_EMBED_CCOPTS := $(filter-out -specs=%,$(PYTHON_EMBED_CCOPTS))
 193   endif
 194   FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
 195 endif
 196
 197 FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
 198 FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
 199 FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
 200 FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
 201
 202 CFLAGS += -fno-omit-frame-pointer
 203 CFLAGS += -ggdb3
 204 CFLAGS += -funwind-tables
 205 CFLAGS += -Wall
 206 CFLAGS += -Wextra
 207 CFLAGS += -std=gnu99
 208
 209 CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
 210 CXXFLAGS += -Wall
 211 CXXFLAGS += -fno-omit-frame-pointer
 212 CXXFLAGS += -ggdb3
 213 CXXFLAGS += -funwind-tables
 214 CXXFLAGS += -Wno-strict-aliasing
 215
 216 # Enforce a non-executable stack, as we may regress (again) in the future by
 217 # adding assembler files missing the .GNU-stack linker note.
 218 LDFLAGS += -Wl,-z,noexecstack
 219
 220 EXTLIBS = -lpthread -lrt -lm -ldl
 221
 222 ifeq ($(FEATURES_DUMP),)
 223 include $(srctree)/tools/build/Makefile.feature
 224 else
 225 include $(FEATURES_DUMP)
 226 endif
 227
 228 ifeq ($(feature-stackprotector-all), 1)
 229   CFLAGS += -fstack-protector-all
 230 endif
 231
 232 ifeq ($(DEBUG),0)
 233   ifeq ($(feature-fortify-source), 1)
 234     CFLAGS += -D_FORTIFY_SOURCE=2
 235   endif
 236 endif
 237
 238 INC_FLAGS += -I$(src-perf)/util/include
 239 INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
 240 INC_FLAGS += -I$(srctree)/tools/include/uapi
 241 INC_FLAGS += -I$(srctree)/tools/include/
 242 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
 243 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
 244 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
 245
 246 # $(obj-perf)      for generated common-cmds.h
 247 # $(obj-perf)/util for generated bison/flex headers
 248 ifneq ($(OUTPUT),)
 249 INC_FLAGS += -I$(obj-perf)/util
 250 INC_FLAGS += -I$(obj-perf)
 251 endif
 252
 253 INC_FLAGS += -I$(src-perf)/util
 254 INC_FLAGS += -I$(src-perf)
 255 INC_FLAGS += -I$(srctree)/tools/lib/
 256
 257 CFLAGS   += $(INC_FLAGS)
 258 CXXFLAGS += $(INC_FLAGS)
 259
 260 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 261
 262 ifeq ($(feature-sync-compare-and-swap), 1)
 263   CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
 264 endif
 265
 266 ifeq ($(feature-pthread-attr-setaffinity-np), 1)
 267   CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
 268 endif
 269
 270 ifndef NO_BIONIC
 271   $(call feature_check,bionic)
 272   ifeq ($(feature-bionic), 1)
 273     BIONIC := 1
 274     EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
 275     EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
 276   endif
 277 endif
 278
 279 ifdef NO_LIBELF
 280   NO_DWARF := 1
 281   NO_DEMANGLE := 1
 282   NO_LIBUNWIND := 1
 283   NO_LIBDW_DWARF_UNWIND := 1
 284   NO_LIBBPF := 1
 285   NO_JVMTI := 1
 286 else
 287   ifeq ($(feature-libelf), 0)
 288     ifeq ($(feature-glibc), 1)
 289       LIBC_SUPPORT := 1
 290     endif
 291     ifeq ($(BIONIC),1)
 292       LIBC_SUPPORT := 1
 293     endif
 294     ifeq ($(LIBC_SUPPORT),1)
 295       msg := $(warning No libelf found. Disables 'probe' tool, jvmti and BPF support in 'perf record'. Please install libelf-dev, libelf-devel or elfutils-libelf-devel);
 296
 297       NO_LIBELF := 1
 298       NO_DWARF := 1
 299       NO_DEMANGLE := 1
 300       NO_LIBUNWIND := 1
 301       NO_LIBDW_DWARF_UNWIND := 1
 302       NO_LIBBPF := 1
 303       NO_JVMTI := 1
 304     else
 305       ifneq ($(filter s% -static%,$(LDFLAGS),),)
 306         msg := $(error No static glibc found, please install glibc-static);
 307       else
 308         msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
 309       endif
 310     endif
 311   else
 312     ifndef NO_LIBDW_DWARF_UNWIND
 313       ifneq ($(feature-libdw-dwarf-unwind),1)
 314         NO_LIBDW_DWARF_UNWIND := 1
 315         msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
 316       endif
 317     endif
 318     ifneq ($(feature-dwarf), 1)
 319       ifndef NO_DWARF
 320         msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
 321         NO_DWARF := 1
 322       endif
 323     else
 324       ifneq ($(feature-dwarf_getlocations), 1)
 325         msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
 326       else
 327         CFLAGS += -DHAVE_DWARF_GETLOCATIONS
 328       endif # dwarf_getlocations
 329     endif # Dwarf support
 330   endif # libelf support
 331 endif # NO_LIBELF
 332
 333 ifdef NO_DWARF
 334   NO_LIBDW_DWARF_UNWIND := 1
 335 endif
 336
 337 ifeq ($(feature-sched_getcpu), 1)
 338   CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
 339 endif
 340
 341 ifeq ($(feature-setns), 1)
 342   CFLAGS += -DHAVE_SETNS_SUPPORT
 343   $(call detected,CONFIG_SETNS)
 344 endif
 345
 346 ifndef NO_LIBELF
 347   CFLAGS += -DHAVE_LIBELF_SUPPORT
 348   EXTLIBS += -lelf
 349   $(call detected,CONFIG_LIBELF)
 350
 351   ifeq ($(feature-libelf-mmap), 1)
 352     CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
 353   endif
 354
 355   ifeq ($(feature-libelf-getphdrnum), 1)
 356     CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
 357   endif
 358
 359   ifeq ($(feature-libelf-gelf_getnote), 1)
 360     CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
 361   else
 362     msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
 363   endif
 364
 365   ifeq ($(feature-libelf-getshdrstrndx), 1)
 366     CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
 367   endif
 368
 369   ifndef NO_DWARF
 370     ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
 371       msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
 372       NO_DWARF := 1
 373     else
 374       CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
 375       LDFLAGS += $(LIBDW_LDFLAGS)
 376       EXTLIBS += ${DWARFLIBS}
 377       $(call detected,CONFIG_DWARF)
 378     endif # PERF_HAVE_DWARF_REGS
 379   endif # NO_DWARF
 380
 381   ifndef NO_LIBBPF
 382     ifeq ($(feature-bpf), 1)
 383       CFLAGS += -DHAVE_LIBBPF_SUPPORT
 384       $(call detected,CONFIG_LIBBPF)
 385     endif
 386
 387     ifndef NO_DWARF
 388       ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
 389         CFLAGS += -DHAVE_BPF_PROLOGUE
 390         $(call detected,CONFIG_BPF_PROLOGUE)
 391       else
 392         msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
 393       endif
 394     else
 395       msg := $(warning DWARF support is off, BPF prologue is disabled);
 396     endif
 397
 398   endif # NO_LIBBPF
 399 endif # NO_LIBELF
 400
 401 ifndef NO_SDT
 402   ifneq ($(feature-sdt), 1)
 403     msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
 404     NO_SDT := 1;
 405   else
 406     CFLAGS += -DHAVE_SDT_EVENT
 407     $(call detected,CONFIG_SDT_EVENT)
 408   endif
 409 endif
 410
 411 ifdef PERF_HAVE_JITDUMP
 412   ifndef NO_LIBELF
 413     $(call detected,CONFIG_JITDUMP)
 414     CFLAGS += -DHAVE_JITDUMP
 415   endif
 416 endif
 417
 418 ifeq ($(SRCARCH),powerpc)
 419   ifndef NO_DWARF
 420     CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
 421   endif
 422 endif
 423
 424 ifndef NO_LIBUNWIND
 425   have_libunwind :=
 426
 427   ifeq ($(feature-libunwind-x86), 1)
 428     $(call detected,CONFIG_LIBUNWIND_X86)
 429     CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
 430     LDFLAGS += -lunwind-x86
 431     EXTLIBS_LIBUNWIND += -lunwind-x86
 432     have_libunwind = 1
 433   endif
 434
 435   ifeq ($(feature-libunwind-aarch64), 1)
 436     $(call detected,CONFIG_LIBUNWIND_AARCH64)
 437     CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
 438     LDFLAGS += -lunwind-aarch64
 439     EXTLIBS_LIBUNWIND += -lunwind-aarch64
 440     have_libunwind = 1
 441     $(call feature_check,libunwind-debug-frame-aarch64)
 442     ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
 443       msg := $(warning No debug_frame support found in libunwind-aarch64);
 444       CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
 445     endif
 446   endif
 447
 448   ifneq ($(feature-libunwind), 1)
 449     msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
 450     NO_LOCAL_LIBUNWIND := 1
 451   else
 452     have_libunwind := 1
 453     $(call detected,CONFIG_LOCAL_LIBUNWIND)
 454   endif
 455
 456   ifneq ($(have_libunwind), 1)
 457     NO_LIBUNWIND := 1
 458   endif
 459 else
 460   NO_LOCAL_LIBUNWIND := 1
 461 endif
 462
 463 ifndef NO_LIBBPF
 464   ifneq ($(feature-bpf), 1)
 465     msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
 466     NO_LIBBPF := 1
 467   endif
 468 endif
 469
 470 dwarf-post-unwind := 1
 471 dwarf-post-unwind-text := BUG
 472
 473 # setup DWARF post unwinder
 474 ifdef NO_LIBUNWIND
 475   ifdef NO_LIBDW_DWARF_UNWIND
 476     msg := $(warning Disabling post unwind, no support found.);
 477     dwarf-post-unwind := 0
 478   else
 479     dwarf-post-unwind-text := libdw
 480     $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
 481   endif
 482 else
 483   dwarf-post-unwind-text := libunwind
 484   $(call detected,CONFIG_LIBUNWIND)
 485   # Enable libunwind support by default.
 486   ifndef NO_LIBDW_DWARF_UNWIND
 487     NO_LIBDW_DWARF_UNWIND := 1
 488   endif
 489 endif
 490
 491 ifeq ($(dwarf-post-unwind),1)
 492   CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
 493   $(call detected,CONFIG_DWARF_UNWIND)
 494 else
 495   NO_DWARF_UNWIND := 1
 496 endif
 497
 498 ifndef NO_LOCAL_LIBUNWIND
 499   ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
 500     $(call feature_check,libunwind-debug-frame)
 501     ifneq ($(feature-libunwind-debug-frame), 1)
 502       msg := $(warning No debug_frame support found in libunwind);
 503       CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 504     endif
 505   else
 506     # non-ARM has no dwarf_find_debug_frame() function:
 507     CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
 508   endif
 509   EXTLIBS += $(LIBUNWIND_LIBS)
 510   LDFLAGS += $(LIBUNWIND_LIBS)
 511 endif
 512 ifeq ($(findstring -static,${LDFLAGS}),-static)
 513   # gcc -static links libgcc_eh which contans piece of libunwind
 514   LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
 515 endif
 516
 517 ifndef NO_LIBUNWIND
 518   CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
 519   CFLAGS  += $(LIBUNWIND_CFLAGS)
 520   LDFLAGS += $(LIBUNWIND_LDFLAGS)
 521   EXTLIBS += $(EXTLIBS_LIBUNWIND)
 522 endif
 523
 524 ifndef NO_LIBAUDIT
 525   ifneq ($(feature-libaudit), 1)
 526     msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
 527     NO_LIBAUDIT := 1
 528   else
 529     CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
 530     EXTLIBS += -laudit
 531     $(call detected,CONFIG_AUDIT)
 532   endif
 533 endif
 534
 535 ifndef NO_LIBCRYPTO
 536   ifneq ($(feature-libcrypto), 1)
 537     msg := $(warning No libcrypto.h found, disables jitted code injection, please install libssl-devel or libssl-dev);
 538     NO_LIBCRYPTO := 1
 539   else
 540     CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
 541     EXTLIBS += -lcrypto
 542     $(call detected,CONFIG_CRYPTO)
 543   endif
 544 endif
 545
 546 ifdef NO_NEWT
 547   NO_SLANG=1
 548 endif
 549
 550 ifndef NO_SLANG
 551   ifneq ($(feature-libslang), 1)
 552     msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
 553     NO_SLANG := 1
 554   else
 555     # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
 556     CFLAGS += -I/usr/include/slang
 557     CFLAGS += -DHAVE_SLANG_SUPPORT
 558     EXTLIBS += -lslang
 559     $(call detected,CONFIG_SLANG)
 560   endif
 561 endif
 562
 563 ifndef NO_GTK2
 564   FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
 565   ifneq ($(feature-gtk2), 1)
 566     msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
 567     NO_GTK2 := 1
 568   else
 569     ifeq ($(feature-gtk2-infobar), 1)
 570       GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
 571     endif
 572     CFLAGS += -DHAVE_GTK2_SUPPORT
 573     GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
 574     GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
 575     EXTLIBS += -ldl
 576   endif
 577 endif
 578
 579
 580 ifdef NO_LIBPERL
 581   CFLAGS += -DNO_LIBPERL
 582 else
 583   PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
 584   PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
 585   PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
 586   PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
 587   FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 588
 589   ifneq ($(feature-libperl), 1)
 590     CFLAGS += -DNO_LIBPERL
 591     NO_LIBPERL := 1
 592     msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
 593   else
 594     LDFLAGS += $(PERL_EMBED_LDFLAGS)
 595     EXTLIBS += $(PERL_EMBED_LIBADD)
 596     $(call detected,CONFIG_LIBPERL)
 597   endif
 598 endif
 599
 600 ifeq ($(feature-timerfd), 1)
 601   CFLAGS += -DHAVE_TIMERFD_SUPPORT
 602 else
 603   msg := $(warning No timerfd support. Disables 'perf kvm stat live');
 604 endif
 605
 606 disable-python = $(eval $(disable-python_code))
 607 define disable-python_code
 608   CFLAGS += -DNO_LIBPYTHON
 609   $(warning $1)
 610   NO_LIBPYTHON := 1
 611 endef
 612
 613 ifdef NO_LIBPYTHON
 614   $(call disable-python,Python support disabled by user)
 615 else
 616
 617   ifndef PYTHON
 618     $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
 619   else
 620     PYTHON_WORD := $(call shell-wordify,$(PYTHON))
 621
 622     ifndef PYTHON_CONFIG
 623       $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
 624     else
 625
 626       ifneq ($(feature-libpython), 1)
 627         $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
 628       else
 629         ifneq ($(feature-libpython-version), 1)
 630           $(warning Python 3 is not yet supported; please set)
 631           $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
 632           $(warning If you also have Python 2 installed, then)
 633           $(warning try something like:)
 634           $(warning $(and ,))
 635           $(warning $(and ,)  make PYTHON=python2)
 636           $(warning $(and ,))
 637           $(warning Otherwise, disable Python support entirely:)
 638           $(warning $(and ,))
 639           $(warning $(and ,)  make NO_LIBPYTHON=1)
 640           $(warning $(and ,))
 641           $(error   $(and ,))
 642         else
 643           LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
 644           EXTLIBS += $(PYTHON_EMBED_LIBADD)
 645           LANG_BINDINGS += $(obj-perf)python/perf.so
 646           $(call detected,CONFIG_LIBPYTHON)
 647         endif
 648       endif
 649     endif
 650   endif
 651 endif
 652
 653 ifeq ($(feature-libbfd), 1)
 654   EXTLIBS += -lbfd
 655
 656   # call all detections now so we get correct
 657   # status in VF output
 658   $(call feature_check,liberty)
 659   $(call feature_check,liberty-z)
 660   $(call feature_check,cplus-demangle)
 661
 662   ifeq ($(feature-liberty), 1)
 663     EXTLIBS += -liberty
 664   else
 665     ifeq ($(feature-liberty-z), 1)
 666       EXTLIBS += -liberty -lz
 667     endif
 668   endif
 669 endif
 670
 671 ifdef NO_DEMANGLE
 672   CFLAGS += -DNO_DEMANGLE
 673 else
 674   ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
 675     EXTLIBS += -liberty
 676     CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 677   else
 678     ifneq ($(feature-libbfd), 1)
 679       ifneq ($(feature-liberty), 1)
 680         ifneq ($(feature-liberty-z), 1)
 681           # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
 682           # or any of 'bfd iberty z' trinity
 683           ifeq ($(feature-cplus-demangle), 1)
 684             EXTLIBS += -liberty
 685             CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
 686           else
 687             msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
 688             CFLAGS += -DNO_DEMANGLE
 689           endif
 690         endif
 691       endif
 692     endif
 693   endif
 694 endif
 695
 696 ifneq ($(filter -lbfd,$(EXTLIBS)),)
 697   CFLAGS += -DHAVE_LIBBFD_SUPPORT
 698 endif
 699
 700 ifndef NO_ZLIB
 701   ifeq ($(feature-zlib), 1)
 702     CFLAGS += -DHAVE_ZLIB_SUPPORT
 703     EXTLIBS += -lz
 704     $(call detected,CONFIG_ZLIB)
 705   else
 706     NO_ZLIB := 1
 707   endif
 708 endif
 709
 710 ifndef NO_LZMA
 711   ifeq ($(feature-lzma), 1)
 712     CFLAGS += -DHAVE_LZMA_SUPPORT
 713     EXTLIBS += -llzma
 714     $(call detected,CONFIG_LZMA)
 715   else
 716     msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
 717     NO_LZMA := 1
 718   endif
 719 endif
 720
 721 ifndef NO_BACKTRACE
 722   ifeq ($(feature-backtrace), 1)
 723     CFLAGS += -DHAVE_BACKTRACE_SUPPORT
 724   endif
 725 endif
 726
 727 ifndef NO_LIBNUMA
 728   ifeq ($(feature-libnuma), 0)
 729     msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
 730     NO_LIBNUMA := 1
 731   else
 732     ifeq ($(feature-numa_num_possible_cpus), 0)
 733       msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
 734       NO_LIBNUMA := 1
 735     else
 736       CFLAGS += -DHAVE_LIBNUMA_SUPPORT
 737       EXTLIBS += -lnuma
 738       $(call detected,CONFIG_NUMA)
 739     endif
 740   endif
 741 endif
 742
 743 ifdef HAVE_KVM_STAT_SUPPORT
 744     CFLAGS += -DHAVE_KVM_STAT_SUPPORT
 745 endif
 746
 747 ifeq (${IS_64_BIT}, 1)
 748   ifndef NO_PERF_READ_VDSO32
 749     $(call feature_check,compile-32)
 750     ifeq ($(feature-compile-32), 1)
 751       CFLAGS += -DHAVE_PERF_READ_VDSO32
 752     else
 753       NO_PERF_READ_VDSO32 := 1
 754     endif
 755   endif
 756   ifneq ($(SRCARCH), x86)
 757     NO_PERF_READ_VDSOX32 := 1
 758   endif
 759   ifndef NO_PERF_READ_VDSOX32
 760     $(call feature_check,compile-x32)
 761     ifeq ($(feature-compile-x32), 1)
 762       CFLAGS += -DHAVE_PERF_READ_VDSOX32
 763     else
 764       NO_PERF_READ_VDSOX32 := 1
 765     endif
 766   endif
 767 else
 768   NO_PERF_READ_VDSO32 := 1
 769   NO_PERF_READ_VDSOX32 := 1
 770 endif
 771
 772 ifdef LIBBABELTRACE
 773   $(call feature_check,libbabeltrace)
 774   ifeq ($(feature-libbabeltrace), 1)
 775     CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
 776     LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
 777     EXTLIBS += -lbabeltrace-ctf
 778     $(call detected,CONFIG_LIBBABELTRACE)
 779   else
 780     msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
 781   endif
 782 endif
 783
 784 ifndef NO_AUXTRACE
 785   ifeq ($(SRCARCH),x86)
 786     ifeq ($(feature-get_cpuid), 0)
 787       msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
 788       NO_AUXTRACE := 1
 789     endif
 790   endif
 791   ifndef NO_AUXTRACE
 792     $(call detected,CONFIG_AUXTRACE)
 793     CFLAGS += -DHAVE_AUXTRACE_SUPPORT
 794   endif
 795 endif
 796
 797 ifndef NO_JVMTI
 798   ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
 799     JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
 800   else
 801     ifneq (,$(wildcard /usr/sbin/alternatives))
 802       JDIR=$(shell alternatives --display java | tail -1 | cut -d' ' -f 5 | sed 's%/jre/bin/java.%%g')
 803     endif
 804   endif
 805   ifndef JDIR
 806     $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
 807     NO_JVMTI := 1
 808   endif
 809 endif
 810
 811 ifndef NO_JVMTI
 812   FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
 813   $(call feature_check,jvmti)
 814   ifeq ($(feature-jvmti), 1)
 815     $(call detected_var,JDIR)
 816   else
 817     $(warning No openjdk development package found, please install JDK package)
 818     NO_JVMTI := 1
 819   endif
 820 endif
 821
 822 USE_CXX = 0
 823 USE_CLANGLLVM = 0
 824 ifdef LIBCLANGLLVM
 825   $(call feature_check,cxx)
 826   ifneq ($(feature-cxx), 1)
 827     msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
 828   else
 829     $(call feature_check,llvm)
 830     $(call feature_check,llvm-version)
 831     ifneq ($(feature-llvm), 1)
 832       msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
 833     else
 834       $(call feature_check,clang)
 835       ifneq ($(feature-clang), 1)
 836         msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
 837       else
 838         CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
 839         CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
 840         $(call detected,CONFIG_CXX)
 841         $(call detected,CONFIG_CLANGLLVM)
 842         USE_CXX = 1
 843         USE_LLVM = 1
 844         USE_CLANG = 1
 845         ifneq ($(feature-llvm-version),1)
 846           msg := $(warning This version of LLVM is not tested. May cause build errors)
 847         endif
 848       endif
 849     endif
 850   endif
 851 endif
 852
 853 # Among the variables below, these:
 854 #   perfexecdir
 855 #   template_dir
 856 #   mandir
 857 #   infodir
 858 #   htmldir
 859 #   ETC_PERFCONFIG (but not sysconfdir)
 860 # can be specified as a relative path some/where/else;
 861 # this is interpreted as relative to $(prefix) and "perf" at
 862 # runtime figures out where they are based on the path to the executable.
 863 # This can help installing the suite in a relocatable way.
 864
 865 # Make the path relative to DESTDIR, not to prefix
 866 ifndef DESTDIR
 867 prefix ?= $(HOME)
 868 endif
 869 bindir_relative = bin
 870 bindir = $(abspath $(prefix)/$(bindir_relative))
 871 mandir = share/man
 872 infodir = share/info
 873 perfexecdir = libexec/perf-core
 874 sharedir = $(prefix)/share
 875 template_dir = share/perf-core/templates
 876 STRACE_GROUPS_DIR = share/perf-core/strace/groups
 877 htmldir = share/doc/perf-doc
 878 tipdir = share/doc/perf-tip
 879 srcdir = $(srctree)/tools/perf
 880 ifeq ($(prefix),/usr)
 881 sysconfdir = /etc
 882 ETC_PERFCONFIG = $(sysconfdir)/perfconfig
 883 else
 884 sysconfdir = $(prefix)/etc
 885 ETC_PERFCONFIG = etc/perfconfig
 886 endif
 887 ifndef lib
 888 ifeq ($(SRCARCH)$(IS_64_BIT), x861)
 889 lib = lib64
 890 else
 891 lib = lib
 892 endif
 893 endif # lib
 894 libdir = $(prefix)/$(lib)
 895
 896 # Shell quote (do not use $(call) to accommodate ancient setups);
 897 ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
 898 STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
 899 DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
 900 bindir_SQ = $(subst ','\'',$(bindir))
 901 mandir_SQ = $(subst ','\'',$(mandir))
 902 infodir_SQ = $(subst ','\'',$(infodir))
 903 perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
 904 template_dir_SQ = $(subst ','\'',$(template_dir))
 905 htmldir_SQ = $(subst ','\'',$(htmldir))
 906 tipdir_SQ = $(subst ','\'',$(tipdir))
 907 prefix_SQ = $(subst ','\'',$(prefix))
 908 sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
 909 libdir_SQ = $(subst ','\'',$(libdir))
 910 srcdir_SQ = $(subst ','\'',$(srcdir))
 911
 912 ifneq ($(filter /%,$(firstword $(perfexecdir))),)
 913 perfexec_instdir = $(perfexecdir)
 914 STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
 915 tip_instdir = $(tipdir)
 916 else
 917 perfexec_instdir = $(prefix)/$(perfexecdir)
 918 STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
 919 tip_instdir = $(prefix)/$(tipdir)
 920 endif
 921 perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
 922 STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
 923 tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
 924
 925 # If we install to $(HOME) we keep the traceevent default:
 926 # $(HOME)/.traceevent/plugins
 927 # Otherwise we install plugins into the global $(libdir).
 928 ifdef DESTDIR
 929 plugindir=$(libdir)/traceevent/plugins
 930 plugindir_SQ= $(subst ','\'',$(plugindir))
 931 endif
 932
 933 print_var = $(eval $(print_var_code)) $(info $(MSG))
 934 define print_var_code
 935     MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
 936 endef
 937
 938 ifeq ($(VF),1)
 939   $(call print_var,prefix)
 940   $(call print_var,bindir)
 941   $(call print_var,libdir)
 942   $(call print_var,sysconfdir)
 943   $(call print_var,LIBUNWIND_DIR)
 944   $(call print_var,LIBDW_DIR)
 945   $(call print_var,JDIR)
 946
 947   ifeq ($(dwarf-post-unwind),1)
 948     $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
 949   endif
 950   $(info )
 951 endif
 952
 953 $(call detected_var,bindir_SQ)
 954 $(call detected_var,PYTHON_WORD)
 955 ifneq ($(OUTPUT),)
 956 $(call detected_var,OUTPUT)
 957 endif
 958 $(call detected_var,htmldir_SQ)
 959 $(call detected_var,infodir_SQ)
 960 $(call detected_var,mandir_SQ)
 961 $(call detected_var,ETC_PERFCONFIG_SQ)
 962 $(call detected_var,STRACE_GROUPS_DIR_SQ)
 963 $(call detected_var,prefix_SQ)
 964 $(call detected_var,perfexecdir_SQ)
 965 $(call detected_var,tipdir_SQ)
 966 $(call detected_var,srcdir_SQ)
 967 $(call detected_var,LIBDIR)
 968 $(call detected_var,GTK_CFLAGS)
 969 $(call detected_var,PERL_EMBED_CCOPTS)
 970 $(call detected_var,PYTHON_EMBED_CCOPTS)