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tools lib traceevent: Add plugin build support 

Backporting missing pieces of plugin building infrastructure:

  - Adding Makefile 'plugins' target to build all
    defined plugins

  - Adding Makefile 'install_plugins' target as 'install_lib'
    target dependency

  - Link plugin objects with shared object building

Backported from Steven Rostedt's trace-cmd repo (HEAD 0f2c2fb):
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git

Plugins are by default installed into following locations:

  '$(HOME)/.traceevent/plugins'
     - If we are installing under $(HOME)

  '$(prefix)/lib/traceevent/plugins'
     - Otherwise

This path is propagated to the plugin object as a plugins search path.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386076182-14484-4-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2013-12-03 14:09:17 +01:00 committed by Arnaldo Carvalho de Melo
parent c877bbd8ec
commit e0e96d03f0
1 changed files with 47 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
tools/lib/traceevent/Makefile
View File

@ -43,6 +43,30 @@ 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
# copy a bit from Linux kbuild
ifeq ("$(origin V)", "command line")
@ -96,6 +120,7 @@ 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
@ -138,8 +163,8 @@ else
print_app_build = echo ' BUILD '$(OBJ);
print_fpic_compile = echo ' CC FPIC '$(OBJ);
print_shared_lib_compile = echo ' BUILD SHARED LIB '$(OBJ);
print_plugin_obj_compile = echo ' BUILD PLUGIN OBJ '$(OBJ);
print_plugin_build = echo ' BUILD PLUGIN '$(OBJ);
print_plugin_obj_compile = echo ' CC FPIC '$(OBJ);
print_plugin_build = echo ' BUILD PLUGIN '$(OBJ);
print_static_lib_build = echo ' BUILD STATIC LIB '$(OBJ);
print_install = echo ' INSTALL '$1' to $(DESTDIR_SQ)$2';
endif
@ -187,9 +212,11 @@ PEVENT_LIB_OBJS += parse-filter.o
PEVENT_LIB_OBJS += parse-utils.o
PEVENT_LIB_OBJS += kbuffer-parse.o
ALL_OBJS = $(PEVENT_LIB_OBJS)
PLUGINS := $(PLUGIN_OBJS:.o=.so)
CMD_TARGETS = $(LIB_FILE)
ALL_OBJS = $(PEVENT_LIB_OBJS) $(PLUGIN_OBJS)
CMD_TARGETS = $(LIB_FILE) $(PLUGINS)
TARGETS = $(CMD_TARGETS)
@ -204,9 +231,17 @@ libtraceevent.so: $(PEVENT_LIB_OBJS)
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 \
@ -294,9 +329,16 @@ define do_install
$(INSTALL) $1 '$(DESTDIR_SQ)$2'
endef
install_lib: all_cmd
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: