01474dc706
Use tools/build/ makefiles to build rtla, inheriting the benefits of it. For example, having a proper way to handle dependencies. rtla is built using perf infra-structure when building inside the kernel tree. At this point, rtla diverges from perf in two points: Documentation and tarball generation/build. At the documentation level, rtla is one step ahead, placing the documentation at Documentation/tools/rtla/, using the same build tools as kernel documentation. The idea is to move perf documentation to the same scheme and then share the same makefiles. rtla has a tarball target that the (old) RHEL8 uses. The tarball was kept using a simple standalone makefile for compatibility. The standalone makefile shares most of the code, e.g., flags, with regular buildings. The tarball method was set as deprecated. If necessary, we can make a rtla tarball like perf, which includes the entire tools/build. But this would also require changes in the user side (the directory structure changes, and probably the deps to build the package). Inspired on perf and objtool. Link: https://lkml.kernel.org/r/57563abf2715d22515c0c54a87cff3849eca5d52.1710519524.git.bristot@kernel.org Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: John Kacur <jkacur@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
1.9 KiB
SPDX-License-Identifier: GPL-2.0-only
ifeq ($(srctree),) srctree := $(patsubst %/,%,$(dir $(CURDIR))) srctree := $(patsubst %/,%,$(dir $(srctree))) srctree := $(patsubst %/,%,$(dir $(srctree))) endif
include $(srctree)/tools/scripts/Makefile.include
O is an alias for OUTPUT
OUTPUT := $(O)
ifeq ($(OUTPUT),) OUTPUT := $(CURDIR) else
subdir is used by the ../Makefile in $(call descend,)
ifneq ($(subdir),) OUTPUT := $(OUTPUT)/$(subdir) endif endif
ifneq ($(patsubst %/,,$(lastword $(OUTPUT))),) OUTPUT := $(OUTPUT)/ endif
RTLA := $(OUTPUT)rtla RTLA_IN := $(RTLA)-in.o
VERSION := $(shell sh -c "make -sC ../../.. kernelversion | grep -v make") DOCSRC := ../../../Documentation/tools/rtla/
FEATURE_TESTS := libtraceevent FEATURE_TESTS += libtracefs FEATURE_DISPLAY := libtraceevent FEATURE_DISPLAY += libtracefs
ifeq ($(V),1) Q = else Q = @ endif
all: $(RTLA)
include $(srctree)/tools/build/Makefile.include include Makefile.rtla
check for dependencies only on required targets
NON_CONFIG_TARGETS := clean install tarball doc doc_clean doc_install
config := 1 ifdef MAKECMDGOALS ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),) config := 0 endif endif
ifeq ($(config),1) include $(srctree)/tools/build/Makefile.feature include Makefile.config endif
CFLAGS += $(INCLUDES) $(LIB_INCLUDES)
export CFLAGS OUTPUT srctree
$(RTLA): $(RTLA_IN) $(QUIET_LINK)$(CC) $(LDFLAGS) -o $(RTLA) $(RTLA_IN) $(EXTLIBS)
static: $(RTLA_IN) $(eval LDFLAGS += -static) $(QUIET_LINK)$(CC) -static $(LDFLAGS) -o $(RTLA)-static $(RTLA_IN) $(EXTLIBS)
rtla.%: fixdep FORCE make -f $(srctree)/tools/build/Makefile.build dir=. $@
$(RTLA_IN): fixdep FORCE make $(build)=rtla
clean: doc_clean fixdep-clean $(call QUIET_CLEAN, rtla) $(Q)find . -name '.o' -delete -o -name '..cmd' -delete -o -name '..d' -delete $(Q)rm -f rtla rtla-static fixdep FEATURE-DUMP rtla- $(Q)rm -rf feature .PHONY: FORCE clean