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