xref: /openbmc/linux/tools/perf/Makefile.config (revision 2359ccdd) 
1
2ifeq ($(src-perf),)
3src-perf := $(srctree)/tools/perf
4endif
5
6ifeq ($(obj-perf),)
7obj-perf := $(OUTPUT)
8endif
9
10ifneq ($(obj-perf),)
11obj-perf := $(abspath $(obj-perf))/
12endif
13
14$(shell printf "" > $(OUTPUT).config-detected)
15detected     = $(shell echo "$(1)=y"       >> $(OUTPUT).config-detected)
16detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
17
18CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
19
20include $(srctree)/tools/scripts/Makefile.arch
21
22$(call detected_var,SRCARCH)
23
24NO_PERF_REGS := 1
25NO_SYSCALL_TABLE := 1
26
27# Additional ARCH settings for ppc
28ifeq ($(SRCARCH),powerpc)
29  NO_PERF_REGS := 0
30  NO_SYSCALL_TABLE := 0
31  CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
32  LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
33endif
34
35# Additional ARCH settings for x86
36ifeq ($(SRCARCH),x86)
37  $(call detected,CONFIG_X86)
38  ifeq (${IS_64_BIT}, 1)
39    NO_SYSCALL_TABLE := 0
40    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
41    ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
42    LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
43    $(call detected,CONFIG_X86_64)
44  else
45    LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
46  endif
47  NO_PERF_REGS := 0
48endif
49
50ifeq ($(SRCARCH),arm)
51  NO_PERF_REGS := 0
52  LIBUNWIND_LIBS = -lunwind -lunwind-arm
53endif
54
55ifeq ($(SRCARCH),arm64)
56  NO_PERF_REGS := 0
57  LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
58endif
59
60ifeq ($(ARCH),s390)
61  NO_PERF_REGS := 0
62  NO_SYSCALL_TABLE := 0
63  CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
64endif
65
66ifeq ($(NO_PERF_REGS),0)
67  $(call detected,CONFIG_PERF_REGS)
68endif
69
70ifneq ($(NO_SYSCALL_TABLE),1)
71  CFLAGS += -DHAVE_SYSCALL_TABLE
72endif
73
74# So far there's only x86 and arm libdw unwind support merged in perf.
75# Disable it on all other architectures in case libdw unwind
76# support is detected in system. Add supported architectures
77# to the check.
78ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390))
79  NO_LIBDW_DWARF_UNWIND := 1
80endif
81
82ifeq ($(LIBUNWIND_LIBS),)
83  NO_LIBUNWIND := 1
84endif
85#
86# For linking with debug library, run like:
87#
88#   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
89#
90
91libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
92define libunwind_arch_set_flags_code
93  FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
94  FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
95endef
96
97ifdef LIBUNWIND_DIR
98  LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
99  LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
100  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
101  $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
102endif
103
104# Set per-feature check compilation flags
105FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
106FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
107FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
108FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
109
110ifdef CSINCLUDES
111  LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
112endif
113OPENCSDLIBS := -lopencsd_c_api -lopencsd
114ifdef CSLIBS
115  LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
116endif
117FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
118FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
119
120ifeq ($(NO_PERF_REGS),0)
121  CFLAGS += -DHAVE_PERF_REGS_SUPPORT
122endif
123
124# for linking with debug library, run like:
125# make DEBUG=1 LIBDW_DIR=/opt/libdw/
126ifdef LIBDW_DIR
127  LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
128  LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
129endif
130DWARFLIBS := -ldw
131ifeq ($(findstring -static,${LDFLAGS}),-static)
132  DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
133endif
134FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
135FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
136
137# for linking with debug library, run like:
138# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
139ifdef LIBBABELTRACE_DIR
140  LIBBABELTRACE_CFLAGS  := -I$(LIBBABELTRACE_DIR)/include
141  LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
142endif
143FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
144FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
145
146FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
147# include ARCH specific config
148-include $(src-perf)/arch/$(SRCARCH)/Makefile
149
150ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
151  CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
152endif
153
154include $(srctree)/tools/scripts/utilities.mak
155
156ifeq ($(call get-executable,$(FLEX)),)
157  dummy := $(error Error: $(FLEX) is missing on this system, please install it)
158endif
159
160ifeq ($(call get-executable,$(BISON)),)
161  dummy := $(error Error: $(BISON) is missing on this system, please install it)
162endif
163
164# Treat warnings as errors unless directed not to
165ifneq ($(WERROR),0)
166  CFLAGS += -Werror
167  CXXFLAGS += -Werror
168endif
169
170ifndef DEBUG
171  DEBUG := 0
172endif
173
174ifeq ($(DEBUG),0)
175ifeq ($(CC_NO_CLANG), 0)
176  CFLAGS += -O3
177else
178  CFLAGS += -O6
179endif
180endif
181
182ifdef PARSER_DEBUG
183  PARSER_DEBUG_BISON := -t
184  PARSER_DEBUG_FLEX  := -d
185  CFLAGS             += -DPARSER_DEBUG
186  $(call detected_var,PARSER_DEBUG_BISON)
187  $(call detected_var,PARSER_DEBUG_FLEX)
188endif
189
190# Try different combinations to accommodate systems that only have
191# python[2][-config] in weird combinations but always preferring
192# python2 and python2-config as per pep-0394. If we catch a
193# python[-config] in version 3, the version check will kill it.
194PYTHON2 := $(if $(call get-executable,python2),python2,python)
195override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2))
196PYTHON2_CONFIG := \
197  $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
198override PYTHON_CONFIG := \
199  $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG))
200
201grep-libs  = $(filter -l%,$(1))
202strip-libs  = $(filter-out -l%,$(1))
203
204PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
205
206ifdef PYTHON_CONFIG
207  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
208  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
209  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
210  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
211  PYTHON_EMBED_CCOPTS := $(filter-out -specs=%,$(PYTHON_EMBED_CCOPTS))
212  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
213endif
214
215FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
216FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
217FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
218FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
219
220CFLAGS += -fno-omit-frame-pointer
221CFLAGS += -ggdb3
222CFLAGS += -funwind-tables
223CFLAGS += -Wall
224CFLAGS += -Wextra
225CFLAGS += -std=gnu99
226
227CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
228CXXFLAGS += -Wall
229CXXFLAGS += -fno-omit-frame-pointer
230CXXFLAGS += -ggdb3
231CXXFLAGS += -funwind-tables
232CXXFLAGS += -Wno-strict-aliasing
233
234# Enforce a non-executable stack, as we may regress (again) in the future by
235# adding assembler files missing the .GNU-stack linker note.
236LDFLAGS += -Wl,-z,noexecstack
237
238EXTLIBS = -lpthread -lrt -lm -ldl
239
240ifeq ($(FEATURES_DUMP),)
241include $(srctree)/tools/build/Makefile.feature
242else
243include $(FEATURES_DUMP)
244endif
245
246ifeq ($(feature-stackprotector-all), 1)
247  CFLAGS += -fstack-protector-all
248endif
249
250ifeq ($(DEBUG),0)
251  ifeq ($(feature-fortify-source), 1)
252    CFLAGS += -D_FORTIFY_SOURCE=2
253  endif
254endif
255
256INC_FLAGS += -I$(src-perf)/util/include
257INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
258INC_FLAGS += -I$(srctree)/tools/include/uapi
259INC_FLAGS += -I$(srctree)/tools/include/
260INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
261INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
262INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
263
264# $(obj-perf)      for generated common-cmds.h
265# $(obj-perf)/util for generated bison/flex headers
266ifneq ($(OUTPUT),)
267INC_FLAGS += -I$(obj-perf)/util
268INC_FLAGS += -I$(obj-perf)
269endif
270
271INC_FLAGS += -I$(src-perf)/util
272INC_FLAGS += -I$(src-perf)
273INC_FLAGS += -I$(srctree)/tools/lib/
274
275CFLAGS   += $(INC_FLAGS)
276CXXFLAGS += $(INC_FLAGS)
277
278CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
279
280ifeq ($(feature-sync-compare-and-swap), 1)
281  CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
282endif
283
284ifeq ($(feature-pthread-attr-setaffinity-np), 1)
285  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
286endif
287
288ifeq ($(feature-pthread-barrier), 1)
289  CFLAGS += -DHAVE_PTHREAD_BARRIER
290endif
291
292ifndef NO_BIONIC
293  $(call feature_check,bionic)
294  ifeq ($(feature-bionic), 1)
295    BIONIC := 1
296    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
297    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
298  endif
299endif
300
301ifdef NO_LIBELF
302  NO_DWARF := 1
303  NO_DEMANGLE := 1
304  NO_LIBUNWIND := 1
305  NO_LIBDW_DWARF_UNWIND := 1
306  NO_LIBBPF := 1
307  NO_JVMTI := 1
308else
309  ifeq ($(feature-libelf), 0)
310    ifeq ($(feature-glibc), 1)
311      LIBC_SUPPORT := 1
312    endif
313    ifeq ($(BIONIC),1)
314      LIBC_SUPPORT := 1
315    endif
316    ifeq ($(LIBC_SUPPORT),1)
317      msg := $(warning No libelf found. Disables 'probe' tool, jvmti and BPF support in 'perf record'. Please install libelf-dev, libelf-devel or elfutils-libelf-devel);
318
319      NO_LIBELF := 1
320      NO_DWARF := 1
321      NO_DEMANGLE := 1
322      NO_LIBUNWIND := 1
323      NO_LIBDW_DWARF_UNWIND := 1
324      NO_LIBBPF := 1
325      NO_JVMTI := 1
326    else
327      ifneq ($(filter s% -static%,$(LDFLAGS),),)
328        msg := $(error No static glibc found, please install glibc-static);
329      else
330        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
331      endif
332    endif
333  else
334    ifndef NO_LIBDW_DWARF_UNWIND
335      ifneq ($(feature-libdw-dwarf-unwind),1)
336        NO_LIBDW_DWARF_UNWIND := 1
337        msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
338      endif
339    endif
340    ifneq ($(feature-dwarf), 1)
341      ifndef NO_DWARF
342        msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
343        NO_DWARF := 1
344      endif
345    else
346      ifneq ($(feature-dwarf_getlocations), 1)
347        msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
348      else
349        CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
350      endif # dwarf_getlocations
351    endif # Dwarf support
352  endif # libelf support
353endif # NO_LIBELF
354
355ifeq ($(feature-glibc), 1)
356  CFLAGS += -DHAVE_GLIBC_SUPPORT
357endif
358
359ifdef NO_DWARF
360  NO_LIBDW_DWARF_UNWIND := 1
361endif
362
363ifeq ($(feature-sched_getcpu), 1)
364  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
365endif
366
367ifeq ($(feature-setns), 1)
368  CFLAGS += -DHAVE_SETNS_SUPPORT
369  $(call detected,CONFIG_SETNS)
370endif
371
372ifndef NO_CORESIGHT
373  ifeq ($(feature-libopencsd), 1)
374    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
375    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
376    EXTLIBS += $(OPENCSDLIBS)
377    $(call detected,CONFIG_LIBOPENCSD)
378    ifdef CSTRACE_RAW
379      CFLAGS += -DCS_DEBUG_RAW
380      ifeq (${CSTRACE_RAW}, packed)
381        CFLAGS += -DCS_RAW_PACKED
382      endif
383    endif
384  endif
385endif
386
387ifndef NO_LIBELF
388  CFLAGS += -DHAVE_LIBELF_SUPPORT
389  EXTLIBS += -lelf
390  $(call detected,CONFIG_LIBELF)
391
392  ifeq ($(feature-libelf-mmap), 1)
393    CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
394  endif
395
396  ifeq ($(feature-libelf-getphdrnum), 1)
397    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
398  endif
399
400  ifeq ($(feature-libelf-gelf_getnote), 1)
401    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
402  else
403    msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
404  endif
405
406  ifeq ($(feature-libelf-getshdrstrndx), 1)
407    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
408  endif
409
410  ifndef NO_DWARF
411    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
412      msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
413      NO_DWARF := 1
414    else
415      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
416      LDFLAGS += $(LIBDW_LDFLAGS)
417      EXTLIBS += ${DWARFLIBS}
418      $(call detected,CONFIG_DWARF)
419    endif # PERF_HAVE_DWARF_REGS
420  endif # NO_DWARF
421
422  ifndef NO_LIBBPF
423    ifeq ($(feature-bpf), 1)
424      CFLAGS += -DHAVE_LIBBPF_SUPPORT
425      $(call detected,CONFIG_LIBBPF)
426    endif
427
428    ifndef NO_DWARF
429      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
430        CFLAGS += -DHAVE_BPF_PROLOGUE
431        $(call detected,CONFIG_BPF_PROLOGUE)
432      else
433        msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
434      endif
435    else
436      msg := $(warning DWARF support is off, BPF prologue is disabled);
437    endif
438
439  endif # NO_LIBBPF
440endif # NO_LIBELF
441
442ifndef NO_SDT
443  ifneq ($(feature-sdt), 1)
444    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
445    NO_SDT := 1;
446  else
447    CFLAGS += -DHAVE_SDT_EVENT
448    $(call detected,CONFIG_SDT_EVENT)
449  endif
450endif
451
452ifdef PERF_HAVE_JITDUMP
453  ifndef NO_LIBELF
454    $(call detected,CONFIG_JITDUMP)
455    CFLAGS += -DHAVE_JITDUMP
456  endif
457endif
458
459ifeq ($(SRCARCH),powerpc)
460  ifndef NO_DWARF
461    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
462  endif
463endif
464
465ifndef NO_LIBUNWIND
466  have_libunwind :=
467
468  ifeq ($(feature-libunwind-x86), 1)
469    $(call detected,CONFIG_LIBUNWIND_X86)
470    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
471    LDFLAGS += -lunwind-x86
472    EXTLIBS_LIBUNWIND += -lunwind-x86
473    have_libunwind = 1
474  endif
475
476  ifeq ($(feature-libunwind-aarch64), 1)
477    $(call detected,CONFIG_LIBUNWIND_AARCH64)
478    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
479    LDFLAGS += -lunwind-aarch64
480    EXTLIBS_LIBUNWIND += -lunwind-aarch64
481    have_libunwind = 1
482    $(call feature_check,libunwind-debug-frame-aarch64)
483    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
484      msg := $(warning No debug_frame support found in libunwind-aarch64);
485      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
486    endif
487  endif
488
489  ifneq ($(feature-libunwind), 1)
490    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
491    NO_LOCAL_LIBUNWIND := 1
492  else
493    have_libunwind := 1
494    $(call detected,CONFIG_LOCAL_LIBUNWIND)
495  endif
496
497  ifneq ($(have_libunwind), 1)
498    NO_LIBUNWIND := 1
499  endif
500else
501  NO_LOCAL_LIBUNWIND := 1
502endif
503
504ifndef NO_LIBBPF
505  ifneq ($(feature-bpf), 1)
506    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
507    NO_LIBBPF := 1
508  endif
509endif
510
511dwarf-post-unwind := 1
512dwarf-post-unwind-text := BUG
513
514# setup DWARF post unwinder
515ifdef NO_LIBUNWIND
516  ifdef NO_LIBDW_DWARF_UNWIND
517    msg := $(warning Disabling post unwind, no support found.);
518    dwarf-post-unwind := 0
519  else
520    dwarf-post-unwind-text := libdw
521    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
522  endif
523else
524  dwarf-post-unwind-text := libunwind
525  $(call detected,CONFIG_LIBUNWIND)
526  # Enable libunwind support by default.
527  ifndef NO_LIBDW_DWARF_UNWIND
528    NO_LIBDW_DWARF_UNWIND := 1
529  endif
530endif
531
532ifeq ($(dwarf-post-unwind),1)
533  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
534  $(call detected,CONFIG_DWARF_UNWIND)
535else
536  NO_DWARF_UNWIND := 1
537endif
538
539ifndef NO_LOCAL_LIBUNWIND
540  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
541    $(call feature_check,libunwind-debug-frame)
542    ifneq ($(feature-libunwind-debug-frame), 1)
543      msg := $(warning No debug_frame support found in libunwind);
544      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
545    endif
546  else
547    # non-ARM has no dwarf_find_debug_frame() function:
548    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
549  endif
550  EXTLIBS += $(LIBUNWIND_LIBS)
551  LDFLAGS += $(LIBUNWIND_LIBS)
552endif
553ifeq ($(findstring -static,${LDFLAGS}),-static)
554  # gcc -static links libgcc_eh which contans piece of libunwind
555  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
556endif
557
558ifndef NO_LIBUNWIND
559  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
560  CFLAGS  += $(LIBUNWIND_CFLAGS)
561  LDFLAGS += $(LIBUNWIND_LDFLAGS)
562  EXTLIBS += $(EXTLIBS_LIBUNWIND)
563endif
564
565ifeq ($(NO_SYSCALL_TABLE),0)
566  $(call detected,CONFIG_TRACE)
567else
568  ifndef NO_LIBAUDIT
569    ifneq ($(feature-libaudit), 1)
570      msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
571      NO_LIBAUDIT := 1
572    else
573      CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
574      EXTLIBS += -laudit
575      $(call detected,CONFIG_TRACE)
576    endif
577  endif
578endif
579
580ifndef NO_LIBCRYPTO
581  ifneq ($(feature-libcrypto), 1)
582    msg := $(warning No libcrypto.h found, disables jitted code injection, please install libssl-devel or libssl-dev);
583    NO_LIBCRYPTO := 1
584  else
585    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
586    EXTLIBS += -lcrypto
587    $(call detected,CONFIG_CRYPTO)
588  endif
589endif
590
591ifdef NO_NEWT
592  NO_SLANG=1
593endif
594
595ifndef NO_SLANG
596  ifneq ($(feature-libslang), 1)
597    msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
598    NO_SLANG := 1
599  else
600    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
601    CFLAGS += -I/usr/include/slang
602    CFLAGS += -DHAVE_SLANG_SUPPORT
603    EXTLIBS += -lslang
604    $(call detected,CONFIG_SLANG)
605  endif
606endif
607
608ifndef NO_GTK2
609  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
610  ifneq ($(feature-gtk2), 1)
611    msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
612    NO_GTK2 := 1
613  else
614    ifeq ($(feature-gtk2-infobar), 1)
615      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
616    endif
617    CFLAGS += -DHAVE_GTK2_SUPPORT
618    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
619    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
620    EXTLIBS += -ldl
621  endif
622endif
623
624ifdef NO_LIBPERL
625  CFLAGS += -DNO_LIBPERL
626else
627  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
628  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
629  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
630  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
631  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
632  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
633  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
634
635  ifneq ($(feature-libperl), 1)
636    CFLAGS += -DNO_LIBPERL
637    NO_LIBPERL := 1
638    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
639  else
640    LDFLAGS += $(PERL_EMBED_LDFLAGS)
641    EXTLIBS += $(PERL_EMBED_LIBADD)
642    CFLAGS += -DHAVE_LIBPERL_SUPPORT
643    $(call detected,CONFIG_LIBPERL)
644  endif
645endif
646
647ifeq ($(feature-timerfd), 1)
648  CFLAGS += -DHAVE_TIMERFD_SUPPORT
649else
650  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
651endif
652
653disable-python = $(eval $(disable-python_code))
654define disable-python_code
655  CFLAGS += -DNO_LIBPYTHON
656  $(warning $1)
657  NO_LIBPYTHON := 1
658endef
659
660ifdef NO_LIBPYTHON
661  $(call disable-python,Python support disabled by user)
662else
663
664  ifndef PYTHON
665    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
666  else
667    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
668
669    ifndef PYTHON_CONFIG
670      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
671    else
672
673      ifneq ($(feature-libpython), 1)
674        $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
675      else
676         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
677         EXTLIBS += $(PYTHON_EMBED_LIBADD)
678         LANG_BINDINGS += $(obj-perf)python/perf.so
679         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
680         $(call detected,CONFIG_LIBPYTHON)
681      endif
682    endif
683  endif
684endif
685
686ifeq ($(feature-libbfd), 1)
687  EXTLIBS += -lbfd
688
689  # call all detections now so we get correct
690  # status in VF output
691  $(call feature_check,liberty)
692  $(call feature_check,liberty-z)
693  $(call feature_check,cplus-demangle)
694
695  ifeq ($(feature-liberty), 1)
696    EXTLIBS += -liberty
697  else
698    ifeq ($(feature-liberty-z), 1)
699      EXTLIBS += -liberty -lz
700    endif
701  endif
702endif
703
704ifdef NO_DEMANGLE
705  CFLAGS += -DNO_DEMANGLE
706else
707  ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
708    EXTLIBS += -liberty
709    CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
710  else
711    ifneq ($(feature-libbfd), 1)
712      ifneq ($(feature-liberty), 1)
713        ifneq ($(feature-liberty-z), 1)
714          # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
715          # or any of 'bfd iberty z' trinity
716          ifeq ($(feature-cplus-demangle), 1)
717            EXTLIBS += -liberty
718            CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
719          else
720            msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
721            CFLAGS += -DNO_DEMANGLE
722          endif
723        endif
724      endif
725    endif
726  endif
727endif
728
729ifneq ($(filter -lbfd,$(EXTLIBS)),)
730  CFLAGS += -DHAVE_LIBBFD_SUPPORT
731endif
732
733ifndef NO_ZLIB
734  ifeq ($(feature-zlib), 1)
735    CFLAGS += -DHAVE_ZLIB_SUPPORT
736    EXTLIBS += -lz
737    $(call detected,CONFIG_ZLIB)
738  else
739    NO_ZLIB := 1
740  endif
741endif
742
743ifndef NO_LZMA
744  ifeq ($(feature-lzma), 1)
745    CFLAGS += -DHAVE_LZMA_SUPPORT
746    EXTLIBS += -llzma
747    $(call detected,CONFIG_LZMA)
748  else
749    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
750    NO_LZMA := 1
751  endif
752endif
753
754ifndef NO_BACKTRACE
755  ifeq ($(feature-backtrace), 1)
756    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
757  endif
758endif
759
760ifndef NO_LIBNUMA
761  ifeq ($(feature-libnuma), 0)
762    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
763    NO_LIBNUMA := 1
764  else
765    ifeq ($(feature-numa_num_possible_cpus), 0)
766      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
767      NO_LIBNUMA := 1
768    else
769      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
770      EXTLIBS += -lnuma
771      $(call detected,CONFIG_NUMA)
772    endif
773  endif
774endif
775
776ifdef HAVE_KVM_STAT_SUPPORT
777    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
778endif
779
780ifeq (${IS_64_BIT}, 1)
781  ifndef NO_PERF_READ_VDSO32
782    $(call feature_check,compile-32)
783    ifeq ($(feature-compile-32), 1)
784      CFLAGS += -DHAVE_PERF_READ_VDSO32
785    else
786      NO_PERF_READ_VDSO32 := 1
787    endif
788  endif
789  ifneq ($(SRCARCH), x86)
790    NO_PERF_READ_VDSOX32 := 1
791  endif
792  ifndef NO_PERF_READ_VDSOX32
793    $(call feature_check,compile-x32)
794    ifeq ($(feature-compile-x32), 1)
795      CFLAGS += -DHAVE_PERF_READ_VDSOX32
796    else
797      NO_PERF_READ_VDSOX32 := 1
798    endif
799  endif
800else
801  NO_PERF_READ_VDSO32 := 1
802  NO_PERF_READ_VDSOX32 := 1
803endif
804
805ifndef NO_LIBBABELTRACE
806  $(call feature_check,libbabeltrace)
807  ifeq ($(feature-libbabeltrace), 1)
808    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
809    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
810    EXTLIBS += -lbabeltrace-ctf
811    $(call detected,CONFIG_LIBBABELTRACE)
812  else
813    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
814  endif
815endif
816
817ifndef NO_AUXTRACE
818  ifeq ($(SRCARCH),x86)
819    ifeq ($(feature-get_cpuid), 0)
820      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
821      NO_AUXTRACE := 1
822    endif
823  endif
824  ifndef NO_AUXTRACE
825    $(call detected,CONFIG_AUXTRACE)
826    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
827  endif
828endif
829
830ifndef NO_JVMTI
831  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
832    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
833  else
834    ifneq (,$(wildcard /usr/sbin/alternatives))
835      JDIR=$(shell alternatives --display java | tail -1 | cut -d' ' -f 5 | sed 's%/jre/bin/java.%%g')
836    endif
837  endif
838  ifndef JDIR
839    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
840    NO_JVMTI := 1
841  endif
842endif
843
844ifndef NO_JVMTI
845  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
846  $(call feature_check,jvmti)
847  ifeq ($(feature-jvmti), 1)
848    $(call detected_var,JDIR)
849  else
850    $(warning No openjdk development package found, please install JDK package)
851    NO_JVMTI := 1
852  endif
853endif
854
855USE_CXX = 0
856USE_CLANGLLVM = 0
857ifdef LIBCLANGLLVM
858  $(call feature_check,cxx)
859  ifneq ($(feature-cxx), 1)
860    msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
861  else
862    $(call feature_check,llvm)
863    $(call feature_check,llvm-version)
864    ifneq ($(feature-llvm), 1)
865      msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
866    else
867      $(call feature_check,clang)
868      ifneq ($(feature-clang), 1)
869        msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
870      else
871        CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
872        CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
873        $(call detected,CONFIG_CXX)
874        $(call detected,CONFIG_CLANGLLVM)
875	USE_CXX = 1
876	USE_LLVM = 1
877	USE_CLANG = 1
878        ifneq ($(feature-llvm-version),1)
879          msg := $(warning This version of LLVM is not tested. May cause build errors)
880        endif
881      endif
882    endif
883  endif
884endif
885
886# Among the variables below, these:
887#   perfexecdir
888#   template_dir
889#   mandir
890#   infodir
891#   htmldir
892#   ETC_PERFCONFIG (but not sysconfdir)
893# can be specified as a relative path some/where/else;
894# this is interpreted as relative to $(prefix) and "perf" at
895# runtime figures out where they are based on the path to the executable.
896# This can help installing the suite in a relocatable way.
897
898# Make the path relative to DESTDIR, not to prefix
899ifndef DESTDIR
900prefix ?= $(HOME)
901endif
902bindir_relative = bin
903bindir = $(abspath $(prefix)/$(bindir_relative))
904mandir = share/man
905infodir = share/info
906perfexecdir = libexec/perf-core
907sharedir = $(prefix)/share
908template_dir = share/perf-core/templates
909STRACE_GROUPS_DIR = share/perf-core/strace/groups
910htmldir = share/doc/perf-doc
911tipdir = share/doc/perf-tip
912srcdir = $(srctree)/tools/perf
913ifeq ($(prefix),/usr)
914sysconfdir = /etc
915ETC_PERFCONFIG = $(sysconfdir)/perfconfig
916else
917sysconfdir = $(prefix)/etc
918ETC_PERFCONFIG = etc/perfconfig
919endif
920ifndef lib
921ifeq ($(SRCARCH)$(IS_64_BIT), x861)
922lib = lib64
923else
924lib = lib
925endif
926endif # lib
927libdir = $(prefix)/$(lib)
928
929# Shell quote (do not use $(call) to accommodate ancient setups);
930ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
931STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
932DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
933bindir_SQ = $(subst ','\'',$(bindir))
934mandir_SQ = $(subst ','\'',$(mandir))
935infodir_SQ = $(subst ','\'',$(infodir))
936perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
937template_dir_SQ = $(subst ','\'',$(template_dir))
938htmldir_SQ = $(subst ','\'',$(htmldir))
939tipdir_SQ = $(subst ','\'',$(tipdir))
940prefix_SQ = $(subst ','\'',$(prefix))
941sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
942libdir_SQ = $(subst ','\'',$(libdir))
943srcdir_SQ = $(subst ','\'',$(srcdir))
944
945ifneq ($(filter /%,$(firstword $(perfexecdir))),)
946perfexec_instdir = $(perfexecdir)
947STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
948tip_instdir = $(tipdir)
949else
950perfexec_instdir = $(prefix)/$(perfexecdir)
951STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
952tip_instdir = $(prefix)/$(tipdir)
953endif
954perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
955STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
956tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
957
958# If we install to $(HOME) we keep the traceevent default:
959# $(HOME)/.traceevent/plugins
960# Otherwise we install plugins into the global $(libdir).
961ifdef DESTDIR
962plugindir=$(libdir)/traceevent/plugins
963plugindir_SQ= $(subst ','\'',$(plugindir))
964endif
965
966print_var = $(eval $(print_var_code)) $(info $(MSG))
967define print_var_code
968    MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
969endef
970
971ifeq ($(VF),1)
972  # Display EXTRA features which are detected manualy
973  # from here with feature_check call and thus cannot
974  # be partof global state output.
975  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),))
976  $(call print_var,prefix)
977  $(call print_var,bindir)
978  $(call print_var,libdir)
979  $(call print_var,sysconfdir)
980  $(call print_var,LIBUNWIND_DIR)
981  $(call print_var,LIBDW_DIR)
982  $(call print_var,JDIR)
983
984  ifeq ($(dwarf-post-unwind),1)
985    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
986  endif
987  $(info )
988endif
989
990$(call detected_var,bindir_SQ)
991$(call detected_var,PYTHON_WORD)
992ifneq ($(OUTPUT),)
993$(call detected_var,OUTPUT)
994endif
995$(call detected_var,htmldir_SQ)
996$(call detected_var,infodir_SQ)
997$(call detected_var,mandir_SQ)
998$(call detected_var,ETC_PERFCONFIG_SQ)
999$(call detected_var,STRACE_GROUPS_DIR_SQ)
1000$(call detected_var,prefix_SQ)
1001$(call detected_var,perfexecdir_SQ)
1002$(call detected_var,tipdir_SQ)
1003$(call detected_var,srcdir_SQ)
1004$(call detected_var,LIBDIR)
1005$(call detected_var,GTK_CFLAGS)
1006$(call detected_var,PERL_EMBED_CCOPTS)
1007$(call detected_var,PYTHON_EMBED_CCOPTS)
1008