mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-02 15:18:19 +00:00
20aec89aac
When building rtla tools, if the necessary libraries are not installed (libtraceevent and libtracefs), show the ones that are missing in one consolidated output, and also show how to install them (at least for Fedora). Link: https://lore.kernel.org/all/CAHk-=wh+e1qcCnEYJ3JRDVLNCYbJ=0u+Ts5bOYZnY3mX_k-hFA@mail.gmail.com/ Link: https://lkml.kernel.org/r/20220810113918.5d19ce59@gandalf.local.home Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
150 lines
5 KiB
Makefile
150 lines
5 KiB
Makefile
NAME := rtla
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# Follow the kernel version
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VERSION := $(shell cat VERSION 2> /dev/null || make -sC ../../.. kernelversion | grep -v make)
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# From libtracefs:
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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,STRIP,$(CROSS_COMPILE)strip)
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$(call allow-override,PKG_CONFIG,pkg-config)
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$(call allow-override,LD_SO_CONF_PATH,/etc/ld.so.conf.d/)
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$(call allow-override,LDCONFIG,ldconfig)
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INSTALL = install
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MKDIR = mkdir
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FOPTS := -flto=auto -ffat-lto-objects -fexceptions -fstack-protector-strong \
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-fasynchronous-unwind-tables -fstack-clash-protection
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WOPTS := -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -Wno-maybe-uninitialized
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TRACEFS_HEADERS := $$($(PKG_CONFIG) --cflags libtracefs)
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CFLAGS := -O -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(MOPTS) $(WOPTS) $(TRACEFS_HEADERS) $(EXTRA_CFLAGS)
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LDFLAGS := -ggdb $(EXTRA_LDFLAGS)
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LIBS := $$($(PKG_CONFIG) --libs libtracefs)
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SRC := $(wildcard src/*.c)
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HDR := $(wildcard src/*.h)
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OBJ := $(SRC:.c=.o)
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DIRS := src
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FILES := Makefile README.txt
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CEXT := bz2
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TARBALL := $(NAME)-$(VERSION).tar.$(CEXT)
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TAROPTS := -cvjf $(TARBALL)
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BINDIR := /usr/bin
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DATADIR := /usr/share
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DOCDIR := $(DATADIR)/doc
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MANDIR := $(DATADIR)/man
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LICDIR := $(DATADIR)/licenses
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SRCTREE := $(or $(BUILD_SRC),$(CURDIR))
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# If running from the tarball, man pages are stored in the Documentation
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# dir. If running from the kernel source, man pages are stored in
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# Documentation/tools/rtla/.
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ifneq ($(wildcard Documentation/.*),)
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DOCSRC = Documentation/
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else
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DOCSRC = $(SRCTREE)/../../../Documentation/tools/rtla/
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endif
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LIBTRACEEVENT_MIN_VERSION = 1.5
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LIBTRACEFS_MIN_VERSION = 1.3
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.PHONY: all warnings show_warnings
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all: warnings rtla
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TEST_LIBTRACEEVENT = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 || echo n")
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ifeq ("$(TEST_LIBTRACEEVENT)", "n")
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WARNINGS = show_warnings
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MISSING_LIBS += echo "** libtraceevent version $(LIBTRACEEVENT_MIN_VERSION) or higher";
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MISSING_PACKAGES += "libtraceevent-devel"
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MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ ";
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endif
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TEST_LIBTRACEFS = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEFS_MIN_VERSION) libtracefs > /dev/null 2>&1 || echo n")
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ifeq ("$(TEST_LIBTRACEFS)", "n")
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WARNINGS = show_warnings
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MISSING_LIBS += echo "** libtracefs version $(LIBTRACEFS_MIN_VERSION) or higher";
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MISSING_PACKAGES += "libtracefs-devel"
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MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/ ";
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endif
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define show_dependencies
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@echo "********************************************"; \
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echo "** NOTICE: Failed build dependencies"; \
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echo "**"; \
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echo "** Required Libraries:"; \
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$(MISSING_LIBS) \
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echo "**"; \
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echo "** Consider installing the latest libtracefs from your"; \
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echo "** distribution, e.g., 'dnf install $(MISSING_PACKAGES)' on Fedora,"; \
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echo "** or from source:"; \
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echo "**"; \
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$(MISSING_SOURCE) \
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echo "**"; \
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echo "********************************************"
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endef
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show_warnings:
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$(call show_dependencies);
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ifneq ("$(WARNINGS)", "")
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ERROR_OUT = $(error Please add the necessary dependencies)
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warnings: $(WARNINGS)
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$(ERROR_OUT)
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endif
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rtla: $(OBJ)
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$(CC) -o rtla $(LDFLAGS) $(OBJ) $(LIBS)
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static: $(OBJ)
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$(CC) -o rtla-static $(LDFLAGS) --static $(OBJ) $(LIBS) -lpthread -ldl
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.PHONY: install
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install: doc_install
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$(MKDIR) -p $(DESTDIR)$(BINDIR)
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$(INSTALL) rtla -m 755 $(DESTDIR)$(BINDIR)
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$(STRIP) $(DESTDIR)$(BINDIR)/rtla
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@test ! -f $(DESTDIR)$(BINDIR)/osnoise || rm $(DESTDIR)$(BINDIR)/osnoise
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ln -s rtla $(DESTDIR)$(BINDIR)/osnoise
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@test ! -f $(DESTDIR)$(BINDIR)/timerlat || rm $(DESTDIR)$(BINDIR)/timerlat
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ln -s rtla $(DESTDIR)$(BINDIR)/timerlat
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.PHONY: clean tarball
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clean: doc_clean
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@test ! -f rtla || rm rtla
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@test ! -f rtla-static || rm rtla-static
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@test ! -f src/rtla.o || rm src/rtla.o
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@test ! -f $(TARBALL) || rm -f $(TARBALL)
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@rm -rf *~ $(OBJ) *.tar.$(CEXT)
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tarball: clean
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rm -rf $(NAME)-$(VERSION) && mkdir $(NAME)-$(VERSION)
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echo $(VERSION) > $(NAME)-$(VERSION)/VERSION
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cp -r $(DIRS) $(FILES) $(NAME)-$(VERSION)
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mkdir $(NAME)-$(VERSION)/Documentation/
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cp -rp $(SRCTREE)/../../../Documentation/tools/rtla/* $(NAME)-$(VERSION)/Documentation/
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tar $(TAROPTS) --exclude='*~' $(NAME)-$(VERSION)
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rm -rf $(NAME)-$(VERSION)
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.PHONY: doc doc_clean doc_install
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doc:
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$(MAKE) -C $(DOCSRC)
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doc_clean:
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$(MAKE) -C $(DOCSRC) clean
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doc_install:
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$(MAKE) -C $(DOCSRC) install
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