Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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)