# SPDX-License-Identifier: GPL-2.0
|
|
#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)
|
$(call allow-override,NM,$(CROSS_COMPILE)nm)
|
$(call allow-override,PKG_CONFIG,pkg-config)
|
|
EXT = -std=gnu99
|
INSTALL = install
|
|
# Use DESTDIR for installing into a different root directory.
|
# This is useful for building a package. The program will be
|
# installed in this directory as if it was the root directory.
|
# Then the build tool can move it later.
|
DESTDIR ?=
|
DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
|
|
LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
|
ifeq ($(LP64), 1)
|
libdir_relative_tmp = lib64
|
else
|
libdir_relative_tmp = lib
|
endif
|
|
libdir_relative ?= $(libdir_relative_tmp)
|
prefix ?= /usr/local
|
libdir = $(prefix)/$(libdir_relative)
|
|
set_plugin_dir := 1
|
|
# Set plugin_dir to preffered global plugin location
|
# If we install under $HOME directory we go under
|
# $(HOME)/.local/lib/traceevent/plugins
|
#
|
# We dont set PLUGIN_DIR in case we install under $HOME
|
# directory, because by default the code looks under:
|
# $(HOME)/.local/lib/traceevent/plugins by default.
|
#
|
ifeq ($(plugin_dir),)
|
ifeq ($(prefix),$(HOME))
|
override plugin_dir = $(HOME)/.local/lib/traceevent/plugins
|
set_plugin_dir := 0
|
else
|
override plugin_dir = $(libdir)/traceevent/plugins
|
endif
|
endif
|
|
ifeq ($(set_plugin_dir),1)
|
PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)"
|
PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
|
endif
|
|
include ../../../scripts/Makefile.include
|
|
# copy a bit from Linux kbuild
|
|
ifeq ("$(origin V)", "command line")
|
VERBOSE = $(V)
|
endif
|
ifndef VERBOSE
|
VERBOSE = 0
|
endif
|
|
ifeq ($(srctree),)
|
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
|
srctree := $(patsubst %/,%,$(dir $(srctree)))
|
srctree := $(patsubst %/,%,$(dir $(srctree)))
|
srctree := $(patsubst %/,%,$(dir $(srctree)))
|
#$(info Determined 'srctree' to be $(srctree))
|
endif
|
|
export prefix libdir src obj
|
|
# Shell quotes
|
plugin_dir_SQ = $(subst ','\'',$(plugin_dir))
|
|
CONFIG_INCLUDES =
|
CONFIG_LIBS =
|
CONFIG_FLAGS =
|
|
OBJ = $@
|
N =
|
|
INCLUDES = -I. -I.. -I $(srctree)/tools/include $(CONFIG_INCLUDES)
|
|
# Set compile option CFLAGS
|
ifdef EXTRA_CFLAGS
|
CFLAGS := $(EXTRA_CFLAGS)
|
else
|
CFLAGS := -g -Wall
|
endif
|
|
# Append required CFLAGS
|
override CFLAGS += -fPIC
|
override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
|
override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
|
|
ifeq ($(VERBOSE),1)
|
Q =
|
else
|
Q = @
|
endif
|
|
# Disable command line variables (CFLAGS) override from top
|
# level Makefile (perf), otherwise build Makefile will get
|
# the same command line setup.
|
MAKEOVERRIDES=
|
|
export srctree OUTPUT CC LD CFLAGS V
|
|
build := -f $(srctree)/tools/build/Makefile.build dir=. obj
|
|
DYNAMIC_LIST_FILE := $(OUTPUT)libtraceevent-dynamic-list
|
|
PLUGINS = plugin_jbd2.so
|
PLUGINS += plugin_hrtimer.so
|
PLUGINS += plugin_kmem.so
|
PLUGINS += plugin_kvm.so
|
PLUGINS += plugin_mac80211.so
|
PLUGINS += plugin_sched_switch.so
|
PLUGINS += plugin_function.so
|
PLUGINS += plugin_futex.so
|
PLUGINS += plugin_xen.so
|
PLUGINS += plugin_scsi.so
|
PLUGINS += plugin_cfg80211.so
|
PLUGINS += plugin_tlb.so
|
|
PLUGINS := $(addprefix $(OUTPUT),$(PLUGINS))
|
PLUGINS_IN := $(PLUGINS:.so=-in.o)
|
|
plugins: $(PLUGINS) $(DYNAMIC_LIST_FILE)
|
|
__plugin_obj = $(notdir $@)
|
plugin_obj = $(__plugin_obj:-in.o=)
|
|
$(PLUGINS_IN): force
|
$(Q)$(MAKE) $(build)=$(plugin_obj)
|
|
$(OUTPUT)libtraceevent-dynamic-list: $(PLUGINS)
|
$(QUIET_GEN)$(call do_generate_dynamic_list_file, $(PLUGINS), $@)
|
|
$(OUTPUT)%.so: $(OUTPUT)%-in.o
|
$(QUIET_LINK)$(CC) $(CFLAGS) -shared $(LDFLAGS) -nostartfiles -o $@ $^
|
|
define update_dir
|
(echo $1 > $@.tmp; \
|
if [ -r $@ ] && cmp -s $@ $@.tmp; then \
|
rm -f $@.tmp; \
|
else \
|
echo ' UPDATE $@'; \
|
mv -f $@.tmp $@; \
|
fi);
|
endef
|
|
tags: force
|
$(RM) tags
|
find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
|
--regex-c++='/_PE\(([^,)]*).*/TEP_ERRNO__\1/'
|
|
TAGS: force
|
$(RM) TAGS
|
find . -name '*.[ch]' | xargs etags \
|
--regex='/_PE(\([^,)]*\).*/TEP_ERRNO__\1/'
|
|
define do_install_mkdir
|
if [ ! -d '$(DESTDIR_SQ)$1' ]; then \
|
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
|
fi
|
endef
|
|
define do_install
|
$(call do_install_mkdir,$2); \
|
$(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'
|
endef
|
|
define do_install_plugins
|
for plugin in $1; do \
|
$(call do_install,$$plugin,$(plugin_dir_SQ)); \
|
done
|
endef
|
|
define do_generate_dynamic_list_file
|
symbol_type=`$(NM) -u -D $1 | awk 'NF>1 {print $$1}' | \
|
xargs echo "U w W" | tr 'w ' 'W\n' | sort -u | xargs echo`;\
|
if [ "$$symbol_type" = "U W" ];then \
|
(echo '{'; \
|
$(NM) -u -D $1 | awk 'NF>1 {sub("@.*", "", $$2); print "\t"$$2";"}' | sort -u;\
|
echo '};'; \
|
) > $2; \
|
else \
|
(echo Either missing one of [$1] or bad version of $(NM)) 1>&2;\
|
fi
|
endef
|
|
install: $(PLUGINS)
|
$(call QUIET_INSTALL, trace_plugins) \
|
$(call do_install_plugins, $(PLUGINS))
|
|
clean:
|
$(call QUIET_CLEAN, trace_plugins) \
|
$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd; \
|
$(RM) $(OUTPUT)libtraceevent-dynamic-list \
|
$(RM) TRACEEVENT-CFLAGS tags TAGS;
|
|
PHONY += force plugins
|
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)
|
