linux-stable/tools/lib/traceevent/Makefile
Sudip Mukherjee 9606b11726 libtraceevent: Fix lib installation with O=
[ Upstream commit 587db8ebda ]

When we use 'O=' with make to build libtraceevent in a separate folder
it fails to install libtraceevent.a and libtraceevent.so.1.1.0 with the
error:

  INSTALL  /home/sudip/linux/obj-trace/libtraceevent.a
  INSTALL  /home/sudip/linux/obj-trace/libtraceevent.so.1.1.0

  cp: cannot stat 'libtraceevent.a': No such file or directory
  Makefile:225: recipe for target 'install_lib' failed
  make: *** [install_lib] Error 1

I used the command:

  make O=../../../obj-trace DESTDIR=~/test prefix==/usr  install

It turns out libtraceevent Makefile, even though it builds in a separate
folder, searches for libtraceevent.a and libtraceevent.so.1.1.0 in its
source folder.

So, add the 'OUTPUT' prefix to the source path so that 'make' looks for
the files in the correct place.

Signed-off-by: Sudipm Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191115113610.21493-1-sudipm.mukherjee@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-12 12:11:50 +01:00

301 lines
7.8 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
# trace-cmd version
EP_VERSION = 1
EP_PATCHLEVEL = 1
EP_EXTRAVERSION = 0
# file format version
FILE_VERSION = 6
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)
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 = lib64
else
libdir_relative = lib
endif
prefix ?= /usr/local
libdir = $(prefix)/$(libdir_relative)
man_dir = $(prefix)/share/man
man_dir_SQ = '$(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)/.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 $(srctree)))
#$(info Determined 'srctree' to be $(srctree))
endif
export prefix libdir src obj
# Shell quotes
libdir_SQ = $(subst ','\'',$(libdir))
libdir_relative_SQ = $(subst ','\'',$(libdir_relative))
plugin_dir_SQ = $(subst ','\'',$(plugin_dir))
CONFIG_INCLUDES =
CONFIG_LIBS =
CONFIG_FLAGS =
VERSION = $(EP_VERSION)
PATCHLEVEL = $(EP_PATCHLEVEL)
EXTRAVERSION = $(EP_EXTRAVERSION)
OBJ = $@
N =
EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
LIB_TARGET = libtraceevent.a libtraceevent.so.$(EVENT_PARSE_VERSION)
LIB_INSTALL = libtraceevent.a libtraceevent.so*
LIB_INSTALL := $(addprefix $(OUTPUT),$(LIB_INSTALL))
INCLUDES = -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
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_xen.so
PLUGINS += plugin_scsi.so
PLUGINS += plugin_cfg80211.so
PLUGINS := $(addprefix $(OUTPUT),$(PLUGINS))
PLUGINS_IN := $(PLUGINS:.so=-in.o)
TE_IN := $(OUTPUT)libtraceevent-in.o
LIB_TARGET := $(addprefix $(OUTPUT),$(LIB_TARGET))
DYNAMIC_LIST_FILE := $(OUTPUT)libtraceevent-dynamic-list
CMD_TARGETS = $(LIB_TARGET) $(PLUGINS) $(DYNAMIC_LIST_FILE)
TARGETS = $(CMD_TARGETS)
all: all_cmd
all_cmd: $(CMD_TARGETS)
$(TE_IN): force
$(Q)$(MAKE) $(build)=libtraceevent
$(OUTPUT)libtraceevent.so.$(EVENT_PARSE_VERSION): $(TE_IN)
$(QUIET_LINK)$(CC) --shared $^ -Wl,-soname,libtraceevent.so.$(EP_VERSION) -o $@
@ln -sf $(@F) $(OUTPUT)libtraceevent.so
@ln -sf $(@F) $(OUTPUT)libtraceevent.so.$(EP_VERSION)
$(OUTPUT)libtraceevent.a: $(TE_IN)
$(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
$(OUTPUT)libtraceevent-dynamic-list: $(PLUGINS)
$(QUIET_GEN)$(call do_generate_dynamic_list_file, $(PLUGINS), $@)
plugins: $(PLUGINS)
__plugin_obj = $(notdir $@)
plugin_obj = $(__plugin_obj:-in.o=)
$(PLUGINS_IN): force
$(Q)$(MAKE) $(build)=$(plugin_obj)
$(OUTPUT)%.so: $(OUTPUT)%-in.o
$(QUIET_LINK)$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $^
define make_version.h
(echo '/* This file is automatically generated. Do not modify. */'; \
echo \#define VERSION_CODE $(shell \
expr $(VERSION) \* 256 + $(PATCHLEVEL)); \
echo '#define EXTRAVERSION ' $(EXTRAVERSION); \
echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"'; \
echo '#define FILE_VERSION '$(FILE_VERSION); \
) > $1
endef
define update_version.h
($(call make_version.h, $@.tmp); \
if [ -r $@ ] && cmp -s $@ $@.tmp; then \
rm -f $@.tmp; \
else \
echo ' UPDATE $@'; \
mv -f $@.tmp $@; \
fi);
endef
ep_version.h: force
$(Q)$(N)$(call update_version.h)
VERSION_FILES = ep_version.h
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\(([^,)]*).*/PEVENT_ERRNO__\1/'
TAGS: force
$(RM) TAGS
find . -name '*.[ch]' | xargs etags \
--regex='/_PE(\([^,)]*\).*/PEVENT_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 [ "$$symbol_type" = "U W" ];then \
(echo '{'; \
$(NM) -u -D $1 | awk 'NF>1 {print "\t"$$2";"}' | sort -u;\
echo '};'; \
) > $2; \
else \
(echo Either missing one of [$1] or bad version of $(NM)) 1>&2;\
fi
endef
install_lib: all_cmd install_plugins
$(call QUIET_INSTALL, $(LIB_TARGET)) \
$(call do_install_mkdir,$(libdir_SQ)); \
cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ)
install_plugins: $(PLUGINS)
$(call QUIET_INSTALL, trace_plugins) \
$(call do_install_plugins, $(PLUGINS))
install_headers:
$(call QUIET_INSTALL, headers) \
$(call do_install,event-parse.h,$(prefix)/include/traceevent,644); \
$(call do_install,event-utils.h,$(prefix)/include/traceevent,644); \
$(call do_install,kbuffer.h,$(prefix)/include/traceevent,644)
install: install_lib
clean:
$(call QUIET_CLEAN, libtraceevent) \
$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd \
$(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)