1# trace-cmd version
2EP_VERSION = 1
3EP_PATCHLEVEL = 1
4EP_EXTRAVERSION = 0
5
6# file format version
7FILE_VERSION = 6
8
9MAKEFLAGS += --no-print-directory
10
11
12# Makefiles suck: This macro sets a default value of $(2) for the
13# variable named by $(1), unless the variable has been set by
14# environment or command line. This is necessary for CC and AR
15# because make sets default values, so the simpler ?= approach
16# won't work as expected.
17define allow-override
18  $(if $(or $(findstring environment,$(origin $(1))),\
19            $(findstring command line,$(origin $(1)))),,\
20    $(eval $(1) = $(2)))
21endef
22
23# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
24$(call allow-override,CC,$(CROSS_COMPILE)gcc)
25$(call allow-override,AR,$(CROSS_COMPILE)ar)
26
27EXT = -std=gnu99
28INSTALL = install
29
30# Use DESTDIR for installing into a different root directory.
31# This is useful for building a package. The program will be
32# installed in this directory as if it was the root directory.
33# Then the build tool can move it later.
34DESTDIR ?=
35DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
36
37prefix ?= /usr/local
38bindir_relative = bin
39bindir = $(prefix)/$(bindir_relative)
40man_dir = $(prefix)/share/man
41man_dir_SQ = '$(subst ','\'',$(man_dir))'
42
43export man_dir man_dir_SQ INSTALL
44export DESTDIR DESTDIR_SQ
45
46set_plugin_dir := 1
47
48# Set plugin_dir to preffered global plugin location
49# If we install under $HOME directory we go under
50# $(HOME)/.traceevent/plugins
51#
52# We dont set PLUGIN_DIR in case we install under $HOME
53# directory, because by default the code looks under:
54# $(HOME)/.traceevent/plugins by default.
55#
56ifeq ($(plugin_dir),)
57ifeq ($(prefix),$(HOME))
58override plugin_dir = $(HOME)/.traceevent/plugins
59set_plugin_dir := 0
60else
61override plugin_dir = $(prefix)/lib/traceevent/plugins
62endif
63endif
64
65ifeq ($(set_plugin_dir),1)
66PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)"
67PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
68endif
69
70include ../../scripts/Makefile.include
71
72# copy a bit from Linux kbuild
73
74ifeq ("$(origin V)", "command line")
75  VERBOSE = $(V)
76endif
77ifndef VERBOSE
78  VERBOSE = 0
79endif
80
81ifeq ($(srctree),)
82srctree := $(patsubst %/,%,$(dir $(shell pwd)))
83srctree := $(patsubst %/,%,$(dir $(srctree)))
84srctree := $(patsubst %/,%,$(dir $(srctree)))
85#$(info Determined 'srctree' to be $(srctree))
86endif
87
88export prefix bindir src obj
89
90# Shell quotes
91bindir_SQ = $(subst ','\'',$(bindir))
92bindir_relative_SQ = $(subst ','\'',$(bindir_relative))
93plugin_dir_SQ = $(subst ','\'',$(plugin_dir))
94
95LIB_FILE = libtraceevent.a libtraceevent.so
96
97CONFIG_INCLUDES = 
98CONFIG_LIBS	=
99CONFIG_FLAGS	=
100
101VERSION		= $(EP_VERSION)
102PATCHLEVEL	= $(EP_PATCHLEVEL)
103EXTRAVERSION	= $(EP_EXTRAVERSION)
104
105OBJ		= $@
106N		=
107
108EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
109
110INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES)
111
112# Set compile option CFLAGS
113ifdef EXTRA_CFLAGS
114  CFLAGS := $(EXTRA_CFLAGS)
115else
116  CFLAGS := -g -Wall
117endif
118
119# Append required CFLAGS
120override CFLAGS += -fPIC
121override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
122override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
123
124ifeq ($(VERBOSE),1)
125  Q =
126else
127  Q = @
128endif
129
130# Disable command line variables (CFLAGS) overide from top
131# level Makefile (perf), otherwise build Makefile will get
132# the same command line setup.
133MAKEOVERRIDES=
134
135export srctree OUTPUT CC LD CFLAGS V
136build := -f $(srctree)/tools/build/Makefile.build dir=. obj
137
138PLUGINS  = plugin_jbd2.so
139PLUGINS += plugin_hrtimer.so
140PLUGINS += plugin_kmem.so
141PLUGINS += plugin_kvm.so
142PLUGINS += plugin_mac80211.so
143PLUGINS += plugin_sched_switch.so
144PLUGINS += plugin_function.so
145PLUGINS += plugin_xen.so
146PLUGINS += plugin_scsi.so
147PLUGINS += plugin_cfg80211.so
148
149PLUGINS    := $(addprefix $(OUTPUT),$(PLUGINS))
150PLUGINS_IN := $(PLUGINS:.so=-in.o)
151
152TE_IN    := $(OUTPUT)libtraceevent-in.o
153LIB_FILE := $(addprefix $(OUTPUT),$(LIB_FILE))
154
155CMD_TARGETS = $(LIB_FILE) $(PLUGINS)
156
157TARGETS = $(CMD_TARGETS)
158
159all: all_cmd
160
161all_cmd: $(CMD_TARGETS)
162
163$(TE_IN): force
164	$(Q)$(MAKE) $(build)=libtraceevent
165
166$(OUTPUT)libtraceevent.so: $(TE_IN)
167	$(QUIET_LINK)$(CC) --shared $^ -o $@
168
169$(OUTPUT)libtraceevent.a: $(TE_IN)
170	$(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
171
172plugins: $(PLUGINS)
173
174__plugin_obj = $(notdir $@)
175  plugin_obj = $(__plugin_obj:-in.o=)
176
177$(PLUGINS_IN): force
178	$(Q)$(MAKE) $(build)=$(plugin_obj)
179
180$(OUTPUT)%.so: $(OUTPUT)%-in.o
181	$(QUIET_LINK)$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $^
182
183define make_version.h
184  (echo '/* This file is automatically generated. Do not modify. */';		\
185   echo \#define VERSION_CODE $(shell						\
186   expr $(VERSION) \* 256 + $(PATCHLEVEL));					\
187   echo '#define EXTRAVERSION ' $(EXTRAVERSION);				\
188   echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"';	\
189   echo '#define FILE_VERSION '$(FILE_VERSION);					\
190  ) > $1
191endef
192
193define update_version.h
194  ($(call make_version.h, $@.tmp);		\
195    if [ -r $@ ] && cmp -s $@ $@.tmp; then	\
196      rm -f $@.tmp;				\
197    else					\
198      echo '  UPDATE                 $@';	\
199      mv -f $@.tmp $@;				\
200    fi);
201endef
202
203ep_version.h: force
204	$(Q)$(N)$(call update_version.h)
205
206VERSION_FILES = ep_version.h
207
208define update_dir
209  (echo $1 > $@.tmp;				\
210   if [ -r $@ ] && cmp -s $@ $@.tmp; then	\
211     rm -f $@.tmp;				\
212   else						\
213     echo '  UPDATE                 $@';	\
214     mv -f $@.tmp $@;				\
215   fi);
216endef
217
218tags:	force
219	$(RM) tags
220	find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
221	--regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
222
223TAGS:	force
224	$(RM) TAGS
225	find . -name '*.[ch]' | xargs etags \
226	--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
227
228define do_install
229	if [ ! -d '$(DESTDIR_SQ)$2' ]; then		\
230		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2';	\
231	fi;						\
232	$(INSTALL) $1 '$(DESTDIR_SQ)$2'
233endef
234
235define do_install_plugins
236	for plugin in $1; do				\
237	  $(call do_install,$$plugin,$(plugin_dir_SQ));	\
238	done
239endef
240
241install_lib: all_cmd install_plugins
242	$(call QUIET_INSTALL, $(LIB_FILE)) \
243		$(call do_install,$(LIB_FILE),$(bindir_SQ))
244
245install_plugins: $(PLUGINS)
246	$(call QUIET_INSTALL, trace_plugins) \
247		$(call do_install_plugins, $(PLUGINS))
248
249install: install_lib
250
251clean:
252	$(call QUIET_CLEAN, libtraceevent) \
253		$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d \
254		$(RM) TRACEEVENT-CFLAGS tags TAGS
255
256PHONY += force plugins
257force:
258
259# Declare the contents of the .PHONY variable as phony.  We keep that
260# information in a variable so we can use it in if_changed and friends.
261.PHONY: $(PHONY)
262