xref: /openbmc/linux/tools/perf/Makefile.config (revision 160b8e75) 
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 ($(SRCARCH),powerpc)
29  NO_PERF_REGS := 0
30  LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
31endif
32
33# Additional ARCH settings for x86
34ifeq ($(SRCARCH),x86)
35  $(call detected,CONFIG_X86)
36  ifeq (${IS_64_BIT}, 1)
37    NO_SYSCALL_TABLE := 0
38    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
39    ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
40    LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
41    $(call detected,CONFIG_X86_64)
42  else
43    LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
44  endif
45  NO_PERF_REGS := 0
46endif
47
48ifeq ($(SRCARCH),arm)
49  NO_PERF_REGS := 0
50  LIBUNWIND_LIBS = -lunwind -lunwind-arm
51endif
52
53ifeq ($(SRCARCH),arm64)
54  NO_PERF_REGS := 0
55  LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
56endif
57
58ifeq ($(ARCH),s390)
59  NO_PERF_REGS := 0
60  NO_SYSCALL_TABLE := 0
61  CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
62endif
63
64ifeq ($(NO_PERF_REGS),0)
65  $(call detected,CONFIG_PERF_REGS)
66endif
67
68ifneq ($(NO_SYSCALL_TABLE),1)
69  CFLAGS += -DHAVE_SYSCALL_TABLE
70endif
71
72# So far there's only x86 and arm libdw unwind support merged in perf.
73# Disable it on all other architectures in case libdw unwind
74# support is detected in system. Add supported architectures
75# to the check.
76ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm powerpc s390))
77  NO_LIBDW_DWARF_UNWIND := 1
78endif
79
80ifeq ($(LIBUNWIND_LIBS),)
81  NO_LIBUNWIND := 1
82endif
83#
84# For linking with debug library, run like:
85#
86#   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
87#
88
89libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
90define libunwind_arch_set_flags_code
91  FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
92  FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
93endef
94
95ifdef LIBUNWIND_DIR
96  LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
97  LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
98  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
99  $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
100endif
101
102# Set per-feature check compilation flags
103FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
104FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
105FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
106FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
107
108ifdef CSINCLUDES
109  LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
110endif
111OPENCSDLIBS := -lopencsd_c_api -lopencsd
112ifdef CSLIBS
113  LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
114endif
115FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
116FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
117
118ifeq ($(NO_PERF_REGS),0)
119  CFLAGS += -DHAVE_PERF_REGS_SUPPORT
120endif
121
122# for linking with debug library, run like:
123# make DEBUG=1 LIBDW_DIR=/opt/libdw/
124ifdef LIBDW_DIR
125  LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
126  LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
127endif
128DWARFLIBS := -ldw
129ifeq ($(findstring -static,${LDFLAGS}),-static)
130  DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
131endif
132FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
133FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
134
135# for linking with debug library, run like:
136# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
137ifdef LIBBABELTRACE_DIR
138  LIBBABELTRACE_CFLAGS  := -I$(LIBBABELTRACE_DIR)/include
139  LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
140endif
141FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
142FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
143
144FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
145# include ARCH specific config
146-include $(src-perf)/arch/$(SRCARCH)/Makefile
147
148ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
149  CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
150endif
151
152include $(srctree)/tools/scripts/utilities.mak
153
154ifeq ($(call get-executable,$(FLEX)),)
155  dummy := $(error Error: $(FLEX) is missing on this system, please install it)
156endif
157
158ifeq ($(call get-executable,$(BISON)),)
159  dummy := $(error Error: $(BISON) is missing on this system, please install it)
160endif
161
162# Treat warnings as errors unless directed not to
163ifneq ($(WERROR),0)
164  CFLAGS += -Werror
165  CXXFLAGS += -Werror
166endif
167
168ifndef DEBUG
169  DEBUG := 0
170endif
171
172ifeq ($(DEBUG),0)
173ifeq ($(CC_NO_CLANG), 0)
174  CFLAGS += -O3
175else
176  CFLAGS += -O6
177endif
178endif
179
180ifdef PARSER_DEBUG
181  PARSER_DEBUG_BISON := -t
182  PARSER_DEBUG_FLEX  := -d
183  CFLAGS             += -DPARSER_DEBUG
184  $(call detected_var,PARSER_DEBUG_BISON)
185  $(call detected_var,PARSER_DEBUG_FLEX)
186endif
187
188# Try different combinations to accommodate systems that only have
189# python[2][-config] in weird combinations but always preferring
190# python2 and python2-config as per pep-0394. If we catch a
191# python[-config] in version 3, the version check will kill it.
192PYTHON2 := $(if $(call get-executable,python2),python2,python)
193override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2))
194PYTHON2_CONFIG := \
195  $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
196override PYTHON_CONFIG := \
197  $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG))
198
199grep-libs  = $(filter -l%,$(1))
200strip-libs  = $(filter-out -l%,$(1))
201
202PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
203
204ifdef PYTHON_CONFIG
205  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
206  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
207  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
208  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
209  PYTHON_EMBED_CCOPTS := $(filter-out -specs=%,$(PYTHON_EMBED_CCOPTS))
210  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
211endif
212
213FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
214FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
215FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
216FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
217
218CFLAGS += -fno-omit-frame-pointer
219CFLAGS += -ggdb3
220CFLAGS += -funwind-tables
221CFLAGS += -Wall
222CFLAGS += -Wextra
223CFLAGS += -std=gnu99
224
225CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
226CXXFLAGS += -Wall
227CXXFLAGS += -fno-omit-frame-pointer
228CXXFLAGS += -ggdb3
229CXXFLAGS += -funwind-tables
230CXXFLAGS += -Wno-strict-aliasing
231
232# Enforce a non-executable stack, as we may regress (again) in the future by
233# adding assembler files missing the .GNU-stack linker note.
234LDFLAGS += -Wl,-z,noexecstack
235
236EXTLIBS = -lpthread -lrt -lm -ldl
237
238ifeq ($(FEATURES_DUMP),)
239include $(srctree)/tools/build/Makefile.feature
240else
241include $(FEATURES_DUMP)
242endif
243
244ifeq ($(feature-stackprotector-all), 1)
245  CFLAGS += -fstack-protector-all
246endif
247
248ifeq ($(DEBUG),0)
249  ifeq ($(feature-fortify-source), 1)
250    CFLAGS += -D_FORTIFY_SOURCE=2
251  endif
252endif
253
254INC_FLAGS += -I$(src-perf)/util/include
255INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
256INC_FLAGS += -I$(srctree)/tools/include/uapi
257INC_FLAGS += -I$(srctree)/tools/include/
258INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
259INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
260INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
261
262# $(obj-perf)      for generated common-cmds.h
263# $(obj-perf)/util for generated bison/flex headers
264ifneq ($(OUTPUT),)
265INC_FLAGS += -I$(obj-perf)/util
266INC_FLAGS += -I$(obj-perf)
267endif
268
269INC_FLAGS += -I$(src-perf)/util
270INC_FLAGS += -I$(src-perf)
271INC_FLAGS += -I$(srctree)/tools/lib/
272
273CFLAGS   += $(INC_FLAGS)
274CXXFLAGS += $(INC_FLAGS)
275
276CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
277
278ifeq ($(feature-sync-compare-and-swap), 1)
279  CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
280endif
281
282ifeq ($(feature-pthread-attr-setaffinity-np), 1)
283  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
284endif
285
286ifeq ($(feature-pthread-barrier), 1)
287  CFLAGS += -DHAVE_PTHREAD_BARRIER
288endif
289
290ifndef NO_BIONIC
291  $(call feature_check,bionic)
292  ifeq ($(feature-bionic), 1)
293    BIONIC := 1
294    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
295    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
296  endif
297endif
298
299ifdef NO_LIBELF
300  NO_DWARF := 1
301  NO_DEMANGLE := 1
302  NO_LIBUNWIND := 1
303  NO_LIBDW_DWARF_UNWIND := 1
304  NO_LIBBPF := 1
305  NO_JVMTI := 1
306else
307  ifeq ($(feature-libelf), 0)
308    ifeq ($(feature-glibc), 1)
309      LIBC_SUPPORT := 1
310    endif
311    ifeq ($(BIONIC),1)
312      LIBC_SUPPORT := 1
313    endif
314    ifeq ($(LIBC_SUPPORT),1)
315      msg := $(warning No libelf found. Disables 'probe' tool, jvmti and BPF support in 'perf record'. Please install libelf-dev, libelf-devel or elfutils-libelf-devel);
316
317      NO_LIBELF := 1
318      NO_DWARF := 1
319      NO_DEMANGLE := 1
320      NO_LIBUNWIND := 1
321      NO_LIBDW_DWARF_UNWIND := 1
322      NO_LIBBPF := 1
323      NO_JVMTI := 1
324    else
325      ifneq ($(filter s% -static%,$(LDFLAGS),),)
326        msg := $(error No static glibc found, please install glibc-static);
327      else
328        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
329      endif
330    endif
331  else
332    ifndef NO_LIBDW_DWARF_UNWIND
333      ifneq ($(feature-libdw-dwarf-unwind),1)
334        NO_LIBDW_DWARF_UNWIND := 1
335        msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
336      endif
337    endif
338    ifneq ($(feature-dwarf), 1)
339      ifndef NO_DWARF
340        msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
341        NO_DWARF := 1
342      endif
343    else
344      ifneq ($(feature-dwarf_getlocations), 1)
345        msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
346      else
347        CFLAGS += -DHAVE_DWARF_GETLOCATIONS
348      endif # dwarf_getlocations
349    endif # Dwarf support
350  endif # libelf support
351endif # NO_LIBELF
352
353ifdef NO_DWARF
354  NO_LIBDW_DWARF_UNWIND := 1
355endif
356
357ifeq ($(feature-sched_getcpu), 1)
358  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
359endif
360
361ifeq ($(feature-setns), 1)
362  CFLAGS += -DHAVE_SETNS_SUPPORT
363  $(call detected,CONFIG_SETNS)
364endif
365
366ifndef NO_CORESIGHT
367  ifeq ($(feature-libopencsd), 1)
368    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
369    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
370    EXTLIBS += $(OPENCSDLIBS)
371    $(call detected,CONFIG_LIBOPENCSD)
372    ifdef CSTRACE_RAW
373      CFLAGS += -DCS_DEBUG_RAW
374      ifeq (${CSTRACE_RAW}, packed)
375        CFLAGS += -DCS_RAW_PACKED
376      endif
377    endif
378  endif
379endif
380
381ifndef NO_LIBELF
382  CFLAGS += -DHAVE_LIBELF_SUPPORT
383  EXTLIBS += -lelf
384  $(call detected,CONFIG_LIBELF)
385
386  ifeq ($(feature-libelf-mmap), 1)
387    CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
388  endif
389
390  ifeq ($(feature-libelf-getphdrnum), 1)
391    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
392  endif
393
394  ifeq ($(feature-libelf-gelf_getnote), 1)
395    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
396  else
397    msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
398  endif
399
400  ifeq ($(feature-libelf-getshdrstrndx), 1)
401    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
402  endif
403
404  ifndef NO_DWARF
405    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
406      msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
407      NO_DWARF := 1
408    else
409      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
410      LDFLAGS += $(LIBDW_LDFLAGS)
411      EXTLIBS += ${DWARFLIBS}
412      $(call detected,CONFIG_DWARF)
413    endif # PERF_HAVE_DWARF_REGS
414  endif # NO_DWARF
415
416  ifndef NO_LIBBPF
417    ifeq ($(feature-bpf), 1)
418      CFLAGS += -DHAVE_LIBBPF_SUPPORT
419      $(call detected,CONFIG_LIBBPF)
420    endif
421
422    ifndef NO_DWARF
423      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
424        CFLAGS += -DHAVE_BPF_PROLOGUE
425        $(call detected,CONFIG_BPF_PROLOGUE)
426      else
427        msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
428      endif
429    else
430      msg := $(warning DWARF support is off, BPF prologue is disabled);
431    endif
432
433  endif # NO_LIBBPF
434endif # NO_LIBELF
435
436ifndef NO_SDT
437  ifneq ($(feature-sdt), 1)
438    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
439    NO_SDT := 1;
440  else
441    CFLAGS += -DHAVE_SDT_EVENT
442    $(call detected,CONFIG_SDT_EVENT)
443  endif
444endif
445
446ifdef PERF_HAVE_JITDUMP
447  ifndef NO_LIBELF
448    $(call detected,CONFIG_JITDUMP)
449    CFLAGS += -DHAVE_JITDUMP
450  endif
451endif
452
453ifeq ($(SRCARCH),powerpc)
454  ifndef NO_DWARF
455    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
456  endif
457endif
458
459ifndef NO_LIBUNWIND
460  have_libunwind :=
461
462  ifeq ($(feature-libunwind-x86), 1)
463    $(call detected,CONFIG_LIBUNWIND_X86)
464    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
465    LDFLAGS += -lunwind-x86
466    EXTLIBS_LIBUNWIND += -lunwind-x86
467    have_libunwind = 1
468  endif
469
470  ifeq ($(feature-libunwind-aarch64), 1)
471    $(call detected,CONFIG_LIBUNWIND_AARCH64)
472    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
473    LDFLAGS += -lunwind-aarch64
474    EXTLIBS_LIBUNWIND += -lunwind-aarch64
475    have_libunwind = 1
476    $(call feature_check,libunwind-debug-frame-aarch64)
477    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
478      msg := $(warning No debug_frame support found in libunwind-aarch64);
479      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
480    endif
481  endif
482
483  ifneq ($(feature-libunwind), 1)
484    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
485    NO_LOCAL_LIBUNWIND := 1
486  else
487    have_libunwind := 1
488    $(call detected,CONFIG_LOCAL_LIBUNWIND)
489  endif
490
491  ifneq ($(have_libunwind), 1)
492    NO_LIBUNWIND := 1
493  endif
494else
495  NO_LOCAL_LIBUNWIND := 1
496endif
497
498ifndef NO_LIBBPF
499  ifneq ($(feature-bpf), 1)
500    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
501    NO_LIBBPF := 1
502  endif
503endif
504
505dwarf-post-unwind := 1
506dwarf-post-unwind-text := BUG
507
508# setup DWARF post unwinder
509ifdef NO_LIBUNWIND
510  ifdef NO_LIBDW_DWARF_UNWIND
511    msg := $(warning Disabling post unwind, no support found.);
512    dwarf-post-unwind := 0
513  else
514    dwarf-post-unwind-text := libdw
515    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
516  endif
517else
518  dwarf-post-unwind-text := libunwind
519  $(call detected,CONFIG_LIBUNWIND)
520  # Enable libunwind support by default.
521  ifndef NO_LIBDW_DWARF_UNWIND
522    NO_LIBDW_DWARF_UNWIND := 1
523  endif
524endif
525
526ifeq ($(dwarf-post-unwind),1)
527  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
528  $(call detected,CONFIG_DWARF_UNWIND)
529else
530  NO_DWARF_UNWIND := 1
531endif
532
533ifndef NO_LOCAL_LIBUNWIND
534  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
535    $(call feature_check,libunwind-debug-frame)
536    ifneq ($(feature-libunwind-debug-frame), 1)
537      msg := $(warning No debug_frame support found in libunwind);
538      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
539    endif
540  else
541    # non-ARM has no dwarf_find_debug_frame() function:
542    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
543  endif
544  EXTLIBS += $(LIBUNWIND_LIBS)
545  LDFLAGS += $(LIBUNWIND_LIBS)
546endif
547ifeq ($(findstring -static,${LDFLAGS}),-static)
548  # gcc -static links libgcc_eh which contans piece of libunwind
549  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
550endif
551
552ifndef NO_LIBUNWIND
553  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
554  CFLAGS  += $(LIBUNWIND_CFLAGS)
555  LDFLAGS += $(LIBUNWIND_LDFLAGS)
556  EXTLIBS += $(EXTLIBS_LIBUNWIND)
557endif
558
559ifeq ($(NO_SYSCALL_TABLE),0)
560  $(call detected,CONFIG_TRACE)
561else
562  ifndef NO_LIBAUDIT
563    ifneq ($(feature-libaudit), 1)
564      msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
565      NO_LIBAUDIT := 1
566    else
567      CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
568      EXTLIBS += -laudit
569      $(call detected,CONFIG_TRACE)
570    endif
571  endif
572endif
573
574ifndef NO_LIBCRYPTO
575  ifneq ($(feature-libcrypto), 1)
576    msg := $(warning No libcrypto.h found, disables jitted code injection, please install libssl-devel or libssl-dev);
577    NO_LIBCRYPTO := 1
578  else
579    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
580    EXTLIBS += -lcrypto
581    $(call detected,CONFIG_CRYPTO)
582  endif
583endif
584
585ifdef NO_NEWT
586  NO_SLANG=1
587endif
588
589ifndef NO_SLANG
590  ifneq ($(feature-libslang), 1)
591    msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
592    NO_SLANG := 1
593  else
594    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
595    CFLAGS += -I/usr/include/slang
596    CFLAGS += -DHAVE_SLANG_SUPPORT
597    EXTLIBS += -lslang
598    $(call detected,CONFIG_SLANG)
599  endif
600endif
601
602ifndef NO_GTK2
603  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
604  ifneq ($(feature-gtk2), 1)
605    msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
606    NO_GTK2 := 1
607  else
608    ifeq ($(feature-gtk2-infobar), 1)
609      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
610    endif
611    CFLAGS += -DHAVE_GTK2_SUPPORT
612    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
613    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
614    EXTLIBS += -ldl
615  endif
616endif
617
618ifdef NO_LIBPERL
619  CFLAGS += -DNO_LIBPERL
620else
621  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
622  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
623  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
624  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
625  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
626  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
627  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
628
629  ifneq ($(feature-libperl), 1)
630    CFLAGS += -DNO_LIBPERL
631    NO_LIBPERL := 1
632    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
633  else
634    LDFLAGS += $(PERL_EMBED_LDFLAGS)
635    EXTLIBS += $(PERL_EMBED_LIBADD)
636    $(call detected,CONFIG_LIBPERL)
637  endif
638endif
639
640ifeq ($(feature-timerfd), 1)
641  CFLAGS += -DHAVE_TIMERFD_SUPPORT
642else
643  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
644endif
645
646disable-python = $(eval $(disable-python_code))
647define disable-python_code
648  CFLAGS += -DNO_LIBPYTHON
649  $(warning $1)
650  NO_LIBPYTHON := 1
651endef
652
653ifdef NO_LIBPYTHON
654  $(call disable-python,Python support disabled by user)
655else
656
657  ifndef PYTHON
658    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
659  else
660    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
661
662    ifndef PYTHON_CONFIG
663      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
664    else
665
666      ifneq ($(feature-libpython), 1)
667        $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
668      else
669        ifneq ($(feature-libpython-version), 1)
670          $(warning Python 3 is not yet supported; please set)
671          $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
672          $(warning If you also have Python 2 installed, then)
673          $(warning try something like:)
674          $(warning $(and ,))
675          $(warning $(and ,)  make PYTHON=python2)
676          $(warning $(and ,))
677          $(warning Otherwise, disable Python support entirely:)
678          $(warning $(and ,))
679          $(warning $(and ,)  make NO_LIBPYTHON=1)
680          $(warning $(and ,))
681          $(error   $(and ,))
682        else
683          LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
684          EXTLIBS += $(PYTHON_EMBED_LIBADD)
685          LANG_BINDINGS += $(obj-perf)python/perf.so
686          $(call detected,CONFIG_LIBPYTHON)
687        endif
688      endif
689    endif
690  endif
691endif
692
693ifeq ($(feature-libbfd), 1)
694  EXTLIBS += -lbfd
695
696  # call all detections now so we get correct
697  # status in VF output
698  $(call feature_check,liberty)
699  $(call feature_check,liberty-z)
700  $(call feature_check,cplus-demangle)
701
702  ifeq ($(feature-liberty), 1)
703    EXTLIBS += -liberty
704  else
705    ifeq ($(feature-liberty-z), 1)
706      EXTLIBS += -liberty -lz
707    endif
708  endif
709endif
710
711ifdef NO_DEMANGLE
712  CFLAGS += -DNO_DEMANGLE
713else
714  ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
715    EXTLIBS += -liberty
716    CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
717  else
718    ifneq ($(feature-libbfd), 1)
719      ifneq ($(feature-liberty), 1)
720        ifneq ($(feature-liberty-z), 1)
721          # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
722          # or any of 'bfd iberty z' trinity
723          ifeq ($(feature-cplus-demangle), 1)
724            EXTLIBS += -liberty
725            CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
726          else
727            msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
728            CFLAGS += -DNO_DEMANGLE
729          endif
730        endif
731      endif
732    endif
733  endif
734endif
735
736ifneq ($(filter -lbfd,$(EXTLIBS)),)
737  CFLAGS += -DHAVE_LIBBFD_SUPPORT
738endif
739
740ifndef NO_ZLIB
741  ifeq ($(feature-zlib), 1)
742    CFLAGS += -DHAVE_ZLIB_SUPPORT
743    EXTLIBS += -lz
744    $(call detected,CONFIG_ZLIB)
745  else
746    NO_ZLIB := 1
747  endif
748endif
749
750ifndef NO_LZMA
751  ifeq ($(feature-lzma), 1)
752    CFLAGS += -DHAVE_LZMA_SUPPORT
753    EXTLIBS += -llzma
754    $(call detected,CONFIG_LZMA)
755  else
756    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
757    NO_LZMA := 1
758  endif
759endif
760
761ifndef NO_BACKTRACE
762  ifeq ($(feature-backtrace), 1)
763    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
764  endif
765endif
766
767ifndef NO_LIBNUMA
768  ifeq ($(feature-libnuma), 0)
769    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
770    NO_LIBNUMA := 1
771  else
772    ifeq ($(feature-numa_num_possible_cpus), 0)
773      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
774      NO_LIBNUMA := 1
775    else
776      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
777      EXTLIBS += -lnuma
778      $(call detected,CONFIG_NUMA)
779    endif
780  endif
781endif
782
783ifdef HAVE_KVM_STAT_SUPPORT
784    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
785endif
786
787ifeq (${IS_64_BIT}, 1)
788  ifndef NO_PERF_READ_VDSO32
789    $(call feature_check,compile-32)
790    ifeq ($(feature-compile-32), 1)
791      CFLAGS += -DHAVE_PERF_READ_VDSO32
792    else
793      NO_PERF_READ_VDSO32 := 1
794    endif
795  endif
796  ifneq ($(SRCARCH), x86)
797    NO_PERF_READ_VDSOX32 := 1
798  endif
799  ifndef NO_PERF_READ_VDSOX32
800    $(call feature_check,compile-x32)
801    ifeq ($(feature-compile-x32), 1)
802      CFLAGS += -DHAVE_PERF_READ_VDSOX32
803    else
804      NO_PERF_READ_VDSOX32 := 1
805    endif
806  endif
807else
808  NO_PERF_READ_VDSO32 := 1
809  NO_PERF_READ_VDSOX32 := 1
810endif
811
812ifndef NO_LIBBABELTRACE
813  $(call feature_check,libbabeltrace)
814  ifeq ($(feature-libbabeltrace), 1)
815    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
816    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
817    EXTLIBS += -lbabeltrace-ctf
818    $(call detected,CONFIG_LIBBABELTRACE)
819  else
820    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
821  endif
822endif
823
824ifndef NO_AUXTRACE
825  ifeq ($(SRCARCH),x86)
826    ifeq ($(feature-get_cpuid), 0)
827      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
828      NO_AUXTRACE := 1
829    endif
830  endif
831  ifndef NO_AUXTRACE
832    $(call detected,CONFIG_AUXTRACE)
833    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
834  endif
835endif
836
837ifndef NO_JVMTI
838  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
839    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
840  else
841    ifneq (,$(wildcard /usr/sbin/alternatives))
842      JDIR=$(shell alternatives --display java | tail -1 | cut -d' ' -f 5 | sed 's%/jre/bin/java.%%g')
843    endif
844  endif
845  ifndef JDIR
846    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
847    NO_JVMTI := 1
848  endif
849endif
850
851ifndef NO_JVMTI
852  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
853  $(call feature_check,jvmti)
854  ifeq ($(feature-jvmti), 1)
855    $(call detected_var,JDIR)
856  else
857    $(warning No openjdk development package found, please install JDK package)
858    NO_JVMTI := 1
859  endif
860endif
861
862USE_CXX = 0
863USE_CLANGLLVM = 0
864ifdef LIBCLANGLLVM
865  $(call feature_check,cxx)
866  ifneq ($(feature-cxx), 1)
867    msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
868  else
869    $(call feature_check,llvm)
870    $(call feature_check,llvm-version)
871    ifneq ($(feature-llvm), 1)
872      msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
873    else
874      $(call feature_check,clang)
875      ifneq ($(feature-clang), 1)
876        msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
877      else
878        CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
879        CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
880        $(call detected,CONFIG_CXX)
881        $(call detected,CONFIG_CLANGLLVM)
882	USE_CXX = 1
883	USE_LLVM = 1
884	USE_CLANG = 1
885        ifneq ($(feature-llvm-version),1)
886          msg := $(warning This version of LLVM is not tested. May cause build errors)
887        endif
888      endif
889    endif
890  endif
891endif
892
893# Among the variables below, these:
894#   perfexecdir
895#   template_dir
896#   mandir
897#   infodir
898#   htmldir
899#   ETC_PERFCONFIG (but not sysconfdir)
900# can be specified as a relative path some/where/else;
901# this is interpreted as relative to $(prefix) and "perf" at
902# runtime figures out where they are based on the path to the executable.
903# This can help installing the suite in a relocatable way.
904
905# Make the path relative to DESTDIR, not to prefix
906ifndef DESTDIR
907prefix ?= $(HOME)
908endif
909bindir_relative = bin
910bindir = $(abspath $(prefix)/$(bindir_relative))
911mandir = share/man
912infodir = share/info
913perfexecdir = libexec/perf-core
914sharedir = $(prefix)/share
915template_dir = share/perf-core/templates
916STRACE_GROUPS_DIR = share/perf-core/strace/groups
917htmldir = share/doc/perf-doc
918tipdir = share/doc/perf-tip
919srcdir = $(srctree)/tools/perf
920ifeq ($(prefix),/usr)
921sysconfdir = /etc
922ETC_PERFCONFIG = $(sysconfdir)/perfconfig
923else
924sysconfdir = $(prefix)/etc
925ETC_PERFCONFIG = etc/perfconfig
926endif
927ifndef lib
928ifeq ($(SRCARCH)$(IS_64_BIT), x861)
929lib = lib64
930else
931lib = lib
932endif
933endif # lib
934libdir = $(prefix)/$(lib)
935
936# Shell quote (do not use $(call) to accommodate ancient setups);
937ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
938STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
939DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
940bindir_SQ = $(subst ','\'',$(bindir))
941mandir_SQ = $(subst ','\'',$(mandir))
942infodir_SQ = $(subst ','\'',$(infodir))
943perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
944template_dir_SQ = $(subst ','\'',$(template_dir))
945htmldir_SQ = $(subst ','\'',$(htmldir))
946tipdir_SQ = $(subst ','\'',$(tipdir))
947prefix_SQ = $(subst ','\'',$(prefix))
948sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
949libdir_SQ = $(subst ','\'',$(libdir))
950srcdir_SQ = $(subst ','\'',$(srcdir))
951
952ifneq ($(filter /%,$(firstword $(perfexecdir))),)
953perfexec_instdir = $(perfexecdir)
954STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
955tip_instdir = $(tipdir)
956else
957perfexec_instdir = $(prefix)/$(perfexecdir)
958STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
959tip_instdir = $(prefix)/$(tipdir)
960endif
961perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
962STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
963tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
964
965# If we install to $(HOME) we keep the traceevent default:
966# $(HOME)/.traceevent/plugins
967# Otherwise we install plugins into the global $(libdir).
968ifdef DESTDIR
969plugindir=$(libdir)/traceevent/plugins
970plugindir_SQ= $(subst ','\'',$(plugindir))
971endif
972
973print_var = $(eval $(print_var_code)) $(info $(MSG))
974define print_var_code
975    MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
976endef
977
978ifeq ($(VF),1)
979  # Display EXTRA features which are detected manualy
980  # from here with feature_check call and thus cannot
981  # be partof global state output.
982  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),))
983  $(call print_var,prefix)
984  $(call print_var,bindir)
985  $(call print_var,libdir)
986  $(call print_var,sysconfdir)
987  $(call print_var,LIBUNWIND_DIR)
988  $(call print_var,LIBDW_DIR)
989  $(call print_var,JDIR)
990
991  ifeq ($(dwarf-post-unwind),1)
992    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
993  endif
994  $(info )
995endif
996
997$(call detected_var,bindir_SQ)
998$(call detected_var,PYTHON_WORD)
999ifneq ($(OUTPUT),)
1000$(call detected_var,OUTPUT)
1001endif
1002$(call detected_var,htmldir_SQ)
1003$(call detected_var,infodir_SQ)
1004$(call detected_var,mandir_SQ)
1005$(call detected_var,ETC_PERFCONFIG_SQ)
1006$(call detected_var,STRACE_GROUPS_DIR_SQ)
1007$(call detected_var,prefix_SQ)
1008$(call detected_var,perfexecdir_SQ)
1009$(call detected_var,tipdir_SQ)
1010$(call detected_var,srcdir_SQ)
1011$(call detected_var,LIBDIR)
1012$(call detected_var,GTK_CFLAGS)
1013$(call detected_var,PERL_EMBED_CCOPTS)
1014$(call detected_var,PYTHON_EMBED_CCOPTS)
1015