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rtla: Consolidate and show all necessary libraries that failed for building

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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>
This commit is contained in:
Steven Rostedt (Google) 2022-08-10 11:39:18 -04:00
parent 1a7b22ab15
commit 20aec89aac
1 changed files with 36 additions and 26 deletions
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62
tools/tracing/rtla/Makefile
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@ -61,40 +61,50 @@ endif
LIBTRACEEVENT_MIN_VERSION = 1.5 LIBTRACEEVENT_MIN_VERSION = 1.5
LIBTRACEFS_MIN_VERSION = 1.3 LIBTRACEFS_MIN_VERSION = 1.3
.PHONY: all warnings show_warnings
all: warnings rtla
TEST_LIBTRACEEVENT = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 || echo n") TEST_LIBTRACEEVENT = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 || echo n")
ifeq ("$(TEST_LIBTRACEEVENT)", "n") ifeq ("$(TEST_LIBTRACEEVENT)", "n")
.PHONY: warning_traceevent WARNINGS = show_warnings
warning_traceevent: MISSING_LIBS += echo "** libtraceevent version $(LIBTRACEEVENT_MIN_VERSION) or higher";
@echo "********************************************" MISSING_PACKAGES += "libtraceevent-devel"
@echo "** NOTICE: libtraceevent version $(LIBTRACEEVENT_MIN_VERSION) or higher not found" MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ ";
@echo "**"
@echo "** Consider installing the latest libtraceevent from your"
@echo "** distribution, e.g., 'dnf install libtraceevent' on Fedora,"
@echo "** or from source:"
@echo "**"
@echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ "
@echo "**"
@echo "********************************************"
endif endif
TEST_LIBTRACEFS = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEFS_MIN_VERSION) libtracefs > /dev/null 2>&1 || echo n") TEST_LIBTRACEFS = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEFS_MIN_VERSION) libtracefs > /dev/null 2>&1 || echo n")
ifeq ("$(TEST_LIBTRACEFS)", "n") ifeq ("$(TEST_LIBTRACEFS)", "n")
.PHONY: warning_tracefs WARNINGS = show_warnings
warning_tracefs: MISSING_LIBS += echo "** libtracefs version $(LIBTRACEFS_MIN_VERSION) or higher";
@echo "********************************************" MISSING_PACKAGES += "libtracefs-devel"
@echo "** NOTICE: libtracefs version $(LIBTRACEFS_MIN_VERSION) or higher not found" MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/ ";
@echo "**"
@echo "** Consider installing the latest libtracefs from your"
@echo "** distribution, e.g., 'dnf install libtracefs' on Fedora,"
@echo "** or from source:"
@echo "**"
@echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/ "
@echo "**"
@echo "********************************************"
endif endif
.PHONY: all define show_dependencies
all: rtla @echo "********************************************"; \
echo "** NOTICE: Failed build dependencies"; \
echo "**"; \
echo "** Required Libraries:"; \
$(MISSING_LIBS) \
echo "**"; \
echo "** Consider installing the latest libtracefs from your"; \
echo "** distribution, e.g., 'dnf install $(MISSING_PACKAGES)' on Fedora,"; \
echo "** or from source:"; \
echo "**"; \
$(MISSING_SOURCE) \
echo "**"; \
echo "********************************************"
endef
show_warnings:
$(call show_dependencies);
ifneq ("$(WARNINGS)", "")
ERROR_OUT = $(error Please add the necessary dependencies)
warnings: $(WARNINGS)
$(ERROR_OUT)
endif
rtla: $(OBJ) rtla: $(OBJ)
$(CC) -o rtla $(LDFLAGS) $(OBJ) $(LIBS) $(CC) -o rtla $(LDFLAGS) $(OBJ) $(LIBS)