summaryrefslogtreecommitdiff
path: root/tools/lib/traceevent/Makefile
blob: e852a8d54d841496f39e1b71c8bd6864072802ba (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
# trace-cmd version
EP_VERSION = 1
EP_PATCHLEVEL = 1
EP_EXTRAVERSION = 0

# file format version
FILE_VERSION = 6

MAKEFLAGS += --no-print-directory


# Makefiles suck: This macro sets a default value of $(2) for the
# variable named by $(1), unless the variable has been set by
# environment or command line. This is necessary for CC and AR
# because make sets default values, so the simpler ?= approach
# won't work as expected.
define allow-override
  $(if $(or $(findstring environment,$(origin $(1))),\
            $(findstring command line,$(origin $(1)))),,\
    $(eval $(1) = $(2)))
endef

# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
$(call allow-override,CC,$(CROSS_COMPILE)gcc)
$(call allow-override,AR,$(CROSS_COMPILE)ar)

EXT = -std=gnu99
INSTALL = install

# Use DESTDIR for installing into a different root directory.
# This is useful for building a package. The program will be
# installed in this directory as if it was the root directory.
# Then the build tool can move it later.
DESTDIR ?=
DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'

prefix ?= /usr/local
bindir_relative = bin
bindir = $(prefix)/$(bindir_relative)
man_dir = $(prefix)/share/man
man_dir_SQ = '$(subst ','\'',$(man_dir))'

export man_dir man_dir_SQ INSTALL
export DESTDIR DESTDIR_SQ

set_plugin_dir := 1

# Set plugin_dir to preffered global plugin location
# If we install under $HOME directory we go under
# $(HOME)/.traceevent/plugins
#
# We dont set PLUGIN_DIR in case we install under $HOME
# directory, because by default the code looks under:
# $(HOME)/.traceevent/plugins by default.
#
ifeq ($(plugin_dir),)
ifeq ($(prefix),$(HOME))
override plugin_dir = $(HOME)/.traceevent/plugins
set_plugin_dir := 0
else
override plugin_dir = $(prefix)/lib/traceevent/plugins
endif
endif

ifeq ($(set_plugin_dir),1)
PLUGIN_DIR = -DPLUGIN_DIR="$(DESTDIR)/$(plugin_dir)"
PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
endif

include $(if $(BUILD_SRC),$(BUILD_SRC)/)../../scripts/Makefile.include

# copy a bit from Linux kbuild

ifeq ("$(origin V)", "command line")
  VERBOSE = $(V)
endif
ifndef VERBOSE
  VERBOSE = 0
endif

ifeq ("$(origin O)", "command line")
  BUILD_OUTPUT := $(O)
endif

ifeq ($(BUILD_SRC),)
ifneq ($(BUILD_OUTPUT),)

define build_output
	$(if $(VERBOSE:1=),@)+$(MAKE) -C $(BUILD_OUTPUT) 	\
	BUILD_SRC=$(CURDIR) -f $(CURDIR)/Makefile $1
endef

saved-output := $(BUILD_OUTPUT)
BUILD_OUTPUT := $(shell cd $(BUILD_OUTPUT) && /bin/pwd)
$(if $(BUILD_OUTPUT),, \
     $(error output directory "$(saved-output)" does not exist))

all: sub-make

$(MAKECMDGOALS): sub-make

sub-make: force
	$(call build_output, $(MAKECMDGOALS))


# Leave processing to above invocation of make
skip-makefile := 1

endif # BUILD_OUTPUT
endif # BUILD_SRC

# We process the rest of the Makefile if this is the final invocation of make
ifeq ($(skip-makefile),)

srctree		:= $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR))
objtree		:= $(CURDIR)
src		:= $(srctree)
obj		:= $(objtree)

export prefix bindir src obj

# Shell quotes
bindir_SQ = $(subst ','\'',$(bindir))
bindir_relative_SQ = $(subst ','\'',$(bindir_relative))
plugin_dir_SQ = $(subst ','\'',$(plugin_dir))

LIB_FILE = libtraceevent.a libtraceevent.so

CONFIG_INCLUDES = 
CONFIG_LIBS	=
CONFIG_FLAGS	=

VERSION		= $(EP_VERSION)
PATCHLEVEL	= $(EP_PATCHLEVEL)
EXTRAVERSION	= $(EP_EXTRAVERSION)

OBJ		= $@
N		=

export Q VERBOSE

EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)

INCLUDES = -I. $(CONFIG_INCLUDES)

# Set compile option CFLAGS if not set elsewhere
CFLAGS ?= -g -Wall

# Append required CFLAGS
override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
override CFLAGS += $(udis86-flags) -D_GNU_SOURCE

ifeq ($(VERBOSE),1)
  Q =
  print_fpic_compile =
  print_shared_lib_compile =
  print_plugin_obj_compile =
  print_plugin_build =
  print_install =
else
  Q = @
  print_fpic_compile =		echo '  CC FPIC  '$(OBJ);
  print_shared_lib_compile =	echo '  BUILD    SHARED LIB '$(OBJ);
  print_plugin_obj_compile =	echo '  CC FPIC  '$(OBJ);
  print_plugin_build =		echo '  BUILD    PLUGIN '$(OBJ);
  print_static_lib_build =	echo '  BUILD    STATIC LIB '$(OBJ);
  print_install =		echo '  INSTALL  '$1;
endif

do_fpic_compile =					\
	($(print_fpic_compile)				\
	$(CC) -c $(CFLAGS) $(EXT) -fPIC $< -o $@)

do_compile_shared_library =			\
	($(print_shared_lib_compile)		\
	$(CC) --shared $^ -o $@)

do_compile_plugin_obj =				\
	($(print_plugin_obj_compile)		\
	$(CC) -c $(CFLAGS) -fPIC -o $@ $<)

do_plugin_build =				\
	($(print_plugin_build)			\
	$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $<)

do_build_static_lib =				\
	($(print_static_lib_build)		\
	$(RM) $@;  $(AR) rcs $@ $^)


do_compile = $(QUIET_CC)$(CC) -c $(CFLAGS) $(EXT) $< -o $(obj)/$@;

$(obj)/%.o: $(src)/%.c
	$(call do_compile)

%.o: $(src)/%.c
	$(call do_compile)

PEVENT_LIB_OBJS  = event-parse.o
PEVENT_LIB_OBJS += event-plugin.o
PEVENT_LIB_OBJS += trace-seq.o
PEVENT_LIB_OBJS += parse-filter.o
PEVENT_LIB_OBJS += parse-utils.o
PEVENT_LIB_OBJS += kbuffer-parse.o

PLUGIN_OBJS  = plugin_jbd2.o
PLUGIN_OBJS += plugin_hrtimer.o
PLUGIN_OBJS += plugin_kmem.o
PLUGIN_OBJS += plugin_kvm.o
PLUGIN_OBJS += plugin_mac80211.o
PLUGIN_OBJS += plugin_sched_switch.o
PLUGIN_OBJS += plugin_function.o
PLUGIN_OBJS += plugin_xen.o
PLUGIN_OBJS += plugin_scsi.o
PLUGIN_OBJS += plugin_cfg80211.o

PLUGINS := $(PLUGIN_OBJS:.o=.so)

ALL_OBJS = $(PEVENT_LIB_OBJS) $(PLUGIN_OBJS)

CMD_TARGETS = $(LIB_FILE) $(PLUGINS)

TARGETS = $(CMD_TARGETS)


all: all_cmd

all_cmd: $(CMD_TARGETS)

libtraceevent.so: $(PEVENT_LIB_OBJS)
	$(Q)$(do_compile_shared_library)

libtraceevent.a: $(PEVENT_LIB_OBJS)
	$(Q)$(do_build_static_lib)

plugins: $(PLUGINS)

$(PEVENT_LIB_OBJS): %.o: $(src)/%.c TRACEEVENT-CFLAGS
	$(Q)$(do_fpic_compile)

$(PLUGIN_OBJS): %.o : $(src)/%.c
	$(Q)$(do_compile_plugin_obj)

$(PLUGINS): %.so: %.o
	$(Q)$(do_plugin_build)

define make_version.h
	(echo '/* This file is automatically generated. Do not modify. */';		\
	echo \#define VERSION_CODE $(shell						\
	expr $(VERSION) \* 256 + $(PATCHLEVEL));					\
	echo '#define EXTRAVERSION ' $(EXTRAVERSION);					\
	echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"';	\
	echo '#define FILE_VERSION '$(FILE_VERSION);					\
	) > $1
endef

define update_version.h
	($(call make_version.h, $@.tmp);		\
	if [ -r $@ ] && cmp -s $@ $@.tmp; then		\
		rm -f $@.tmp;				\
	else						\
		echo '  UPDATE                 $@';	\
		mv -f $@.tmp $@;			\
	fi);
endef

ep_version.h: force
	$(Q)$(N)$(call update_version.h)

VERSION_FILES = ep_version.h

define update_dir
	(echo $1 > $@.tmp;	\
	if [ -r $@ ] && cmp -s $@ $@.tmp; then		\
		rm -f $@.tmp;				\
	else						\
		echo '  UPDATE                 $@';	\
		mv -f $@.tmp $@;			\
	fi);
endef

## make deps

all_objs := $(sort $(ALL_OBJS))
all_deps := $(all_objs:%.o=.%.d)

# let .d file also depends on the source and header files
define check_deps
		@set -e; $(RM) $@; \
		$(CC) -MM $(CFLAGS) $< > $@.$$$$; \
		sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
		$(RM) $@.$$$$
endef

$(all_deps): .%.d: $(src)/%.c
	$(Q)$(call check_deps)

$(all_objs) : %.o : .%.d

dep_includes := $(wildcard $(all_deps))

ifneq ($(dep_includes),)
 include $(dep_includes)
endif

### Detect environment changes
TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)

TRACEEVENT-CFLAGS: force
	@FLAGS='$(TRACK_CFLAGS)'; \
	    if test x"$$FLAGS" != x"`cat TRACEEVENT-CFLAGS 2>/dev/null`" ; then \
		echo 1>&2 "  FLAGS:   * new build flags or cross compiler"; \
		echo "$$FLAGS" >TRACEEVENT-CFLAGS; \
            fi

tags:	force
	$(RM) tags
	find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
	--regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'

TAGS:	force
	$(RM) TAGS
	find . -name '*.[ch]' | xargs etags \
	--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'

define do_install
	$(print_install)				\
	if [ ! -d '$(DESTDIR_SQ)$2' ]; then		\
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2';	\
	fi;						\
	$(INSTALL) $1 '$(DESTDIR_SQ)$2'
endef

install_lib: all_cmd install_plugins
	$(Q)$(call do_install,$(LIB_FILE),$(bindir_SQ))

PLUGINS_INSTALL = $(subst .so,.install,$(PLUGINS))

$(PLUGINS_INSTALL): %.install : %.so force
	$(Q)$(call do_install,$<,$(plugin_dir_SQ))

install_plugins: $(PLUGINS_INSTALL)

install: install_lib

clean:
	$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d
	$(RM) TRACEEVENT-CFLAGS tags TAGS

endif # skip-makefile

PHONY += force
force:

# Declare the contents of the .PHONY variable as phony.  We keep that
# information in a variable so we can use it in if_changed and friends.
.PHONY: $(PHONY)