Re: [PATCH v3.1 02/17] tools build: Fix feature Makefile dependencies for 'O='

[Jiri Olsa]

On Mon, Dec 14, 2015 at 09:38:15AM -0600, Josh Poimboeuf wrote:
> On Mon, Dec 14, 2015 at 04:29:39PM +0100, Jiri Olsa wrote:
> > On Mon, Dec 14, 2015 at 08:29:07AM -0600, Josh Poimboeuf wrote:
> > > Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
> > 
> > you might want to work on your changelogs
> > a little..  aaand actually include some ;-)
> 
> Well, I thought the subject said it all :-)

well, you could be more specific, like:
- how was it broken before
- what did you do to fix it
- how you added a test case to ensure this will never happen again ;-)

it makes the life of reviewer a bit easier, anyway:

Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>

thanks,
jirka

> 
> > did you update your branch with this change?
> 
> Sure, see branch 'perf-subcmd-v3.1':
> 
>   https://github.com/jpoimboe/linux
> 
> > 
> > jirka
> > 
> > > ---
> > >  tools/build/Makefile.feature |  2 +-
> > >  tools/build/feature/Makefile | 93 ++++++++++++++++++++++----------------------
> > >  2 files changed, 48 insertions(+), 47 deletions(-)


> > > 
> > > diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
> > > index b8c31ec..6c0519d 100644
> > > --- a/tools/build/Makefile.feature
> > > +++ b/tools/build/Makefile.feature
> > > @@ -7,7 +7,7 @@ endif
> > >  
> > >  feature_check = $(eval $(feature_check_code))
> > >  define feature_check_code
> > > -  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C $(feature_dir) test-$1.bin >/dev/null 2>/dev/null && echo 1 || echo 0)
> > > +  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C $(feature_dir) $(OUTPUT_FEATURES)test-$1.bin >/dev/null 2>/dev/null && echo 1 || echo 0)
> > >  endef
> > >  
> > >  feature_set = $(eval $(feature_set_code))
> > > diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
> > > index cea04ce9..bf8f035 100644
> > > --- a/tools/build/feature/Makefile
> > > +++ b/tools/build/feature/Makefile
> > > @@ -1,4 +1,3 @@
> > > -
> > >  FILES=					\
> > >  	test-all.bin			\
> > >  	test-backtrace.bin		\
> > > @@ -38,38 +37,40 @@ FILES=					\
> > >  	test-bpf.bin			\
> > >  	test-get_cpuid.bin
> > >  
> > > +FILES := $(addprefix $(OUTPUT),$(FILES))
> > > +
> > >  CC := $(CROSS_COMPILE)gcc -MD
> > >  PKG_CONFIG := $(CROSS_COMPILE)pkg-config
> > >  
> > >  all: $(FILES)
> > >  
> > > -__BUILD = $(CC) $(CFLAGS) -Wall -Werror -o $(OUTPUT)$@ $(patsubst %.bin,%.c,$@) $(LDFLAGS)
> > > -  BUILD = $(__BUILD) > $(OUTPUT)$(@:.bin=.make.output) 2>&1
> > > +__BUILD = $(CC) $(CFLAGS) -Wall -Werror -o $@ $(patsubst %.bin,%.c,$(@F)) $(LDFLAGS)
> > > +  BUILD = $(__BUILD) > $(@:.bin=.make.output) 2>&1
> > >  
> > >  ###############################
> > >  
> > > -test-all.bin:
> > > +$(OUTPUT)test-all.bin:
> > >  	$(BUILD) -fstack-protector-all -O2 -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lelf -laudit -I/usr/include/slang -lslang $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl -lz -llzma
> > >  
> > > -test-hello.bin:
> > > +$(OUTPUT)test-hello.bin:
> > >  	$(BUILD)
> > >  
> > > -test-pthread-attr-setaffinity-np.bin:
> > > +$(OUTPUT)test-pthread-attr-setaffinity-np.bin:
> > >  	$(BUILD) -D_GNU_SOURCE -lpthread
> > >  
> > > -test-stackprotector-all.bin:
> > > +$(OUTPUT)test-stackprotector-all.bin:
> > >  	$(BUILD) -fstack-protector-all
> > >  
> > > -test-fortify-source.bin:
> > > +$(OUTPUT)test-fortify-source.bin:
> > >  	$(BUILD) -O2 -D_FORTIFY_SOURCE=2
> > >  
> > > -test-bionic.bin:
> > > +$(OUTPUT)test-bionic.bin:
> > >  	$(BUILD)
> > >  
> > > -test-libelf.bin:
> > > +$(OUTPUT)test-libelf.bin:
> > >  	$(BUILD) -lelf
> > >  
> > > -test-glibc.bin:
> > > +$(OUTPUT)test-glibc.bin:
> > >  	$(BUILD)
> > >  
> > >  DWARFLIBS := -ldw
> > > @@ -77,37 +78,37 @@ ifeq ($(findstring -static,${LDFLAGS}),-static)
> > >  DWARFLIBS += -lelf -lebl -lz -llzma -lbz2
> > >  endif
> > >  
> > > -test-dwarf.bin:
> > > +$(OUTPUT)test-dwarf.bin:
> > >  	$(BUILD) $(DWARFLIBS)
> > >  
> > > -test-libelf-mmap.bin:
> > > +$(OUTPUT)test-libelf-mmap.bin:
> > >  	$(BUILD) -lelf
> > >  
> > > -test-libelf-getphdrnum.bin:
> > > +$(OUTPUT)test-libelf-getphdrnum.bin:
> > >  	$(BUILD) -lelf
> > >  
> > > -test-libnuma.bin:
> > > +$(OUTPUT)test-libnuma.bin:
> > >  	$(BUILD) -lnuma
> > >  
> > > -test-numa_num_possible_cpus.bin:
> > > +$(OUTPUT)test-numa_num_possible_cpus.bin:
> > >  	$(BUILD) -lnuma
> > >  
> > > -test-libunwind.bin:
> > > +$(OUTPUT)test-libunwind.bin:
> > >  	$(BUILD) -lelf
> > >  
> > > -test-libunwind-debug-frame.bin:
> > > +$(OUTPUT)test-libunwind-debug-frame.bin:
> > >  	$(BUILD) -lelf
> > >  
> > > -test-libaudit.bin:
> > > +$(OUTPUT)test-libaudit.bin:
> > >  	$(BUILD) -laudit
> > >  
> > > -test-libslang.bin:
> > > +$(OUTPUT)test-libslang.bin:
> > >  	$(BUILD) -I/usr/include/slang -lslang
> > >  
> > > -test-gtk2.bin:
> > > +$(OUTPUT)test-gtk2.bin:
> > >  	$(BUILD) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
> > >  
> > > -test-gtk2-infobar.bin:
> > > +$(OUTPUT)test-gtk2-infobar.bin:
> > >  	$(BUILD) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
> > >  
> > >  grep-libs  = $(filter -l%,$(1))
> > > @@ -119,63 +120,63 @@ PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
> > >  PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
> > >  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
> > >  
> > > -test-libperl.bin:
> > > +$(OUTPUT)test-libperl.bin:
> > >  	$(BUILD) $(FLAGS_PERL_EMBED)
> > >  
> > > -test-libpython.bin:
> > > +$(OUTPUT)test-libpython.bin:
> > >  	$(BUILD)
> > >  
> > > -test-libpython-version.bin:
> > > +$(OUTPUT)test-libpython-version.bin:
> > >  	$(BUILD)
> > >  
> > > -test-libbfd.bin:
> > > +$(OUTPUT)test-libbfd.bin:
> > >  	$(BUILD) -DPACKAGE='"perf"' -lbfd -lz -liberty -ldl
> > >  
> > > -test-liberty.bin:
> > > -	$(CC) $(CFLAGS) -Wall -Werror -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty
> > > +$(OUTPUT)test-liberty.bin:
> > > +	$(CC) $(CFLAGS) -Wall -Werror -o $@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty
> > >  
> > > -test-liberty-z.bin:
> > > -	$(CC) $(CFLAGS) -Wall -Werror -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty -lz
> > > +$(OUTPUT)test-liberty-z.bin:
> > > +	$(CC) $(CFLAGS) -Wall -Werror -o $@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty -lz
> > >  
> > > -test-cplus-demangle.bin:
> > > +$(OUTPUT)test-cplus-demangle.bin:
> > >  	$(BUILD) -liberty
> > >  
> > > -test-backtrace.bin:
> > > +$(OUTPUT)test-backtrace.bin:
> > >  	$(BUILD)
> > >  
> > > -test-timerfd.bin:
> > > +$(OUTPUT)test-timerfd.bin:
> > >  	$(BUILD)
> > >  
> > > -test-libdw-dwarf-unwind.bin:
> > > +$(OUTPUT)test-libdw-dwarf-unwind.bin:
> > >  	$(BUILD) # -ldw provided by $(FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind)
> > >  
> > > -test-libbabeltrace.bin:
> > > +$(OUTPUT)test-libbabeltrace.bin:
> > >  	$(BUILD) # -lbabeltrace provided by $(FEATURE_CHECK_LDFLAGS-libbabeltrace)
> > >  
> > > -test-sync-compare-and-swap.bin:
> > > +$(OUTPUT)test-sync-compare-and-swap.bin:
> > >  	$(BUILD)
> > >  
> > > -test-compile-32.bin:
> > > -	$(CC) -m32 -o $(OUTPUT)$@ test-compile.c
> > > +$(OUTPUT)test-compile-32.bin:
> > > +	$(CC) -m32 -o $@ test-compile.c
> > >  
> > > -test-compile-x32.bin:
> > > -	$(CC) -mx32 -o $(OUTPUT)$@ test-compile.c
> > > +$(OUTPUT)test-compile-x32.bin:
> > > +	$(CC) -mx32 -o $@ test-compile.c
> > >  
> > > -test-zlib.bin:
> > > +$(OUTPUT)test-zlib.bin:
> > >  	$(BUILD) -lz
> > >  
> > > -test-lzma.bin:
> > > +$(OUTPUT)test-lzma.bin:
> > >  	$(BUILD) -llzma
> > >  
> > > -test-get_cpuid.bin:
> > > +$(OUTPUT)test-get_cpuid.bin:
> > >  	$(BUILD)
> > >  
> > > -test-bpf.bin:
> > > +$(OUTPUT)test-bpf.bin:
> > >  	$(BUILD)
> > >  
> > > --include *.d
> > > +-include $(OUTPUT)*.d
> > >  
> > >  ###############################
> > >  
> > >  clean:
> > > -	rm -f $(FILES) *.d $(FILES:.bin=.make.output)
> > > +	rm -f $(FILES) $(OUTPUT)*.d $(FILES:.bin=.make.output)
> > > -- 
> > > 2.4.3
> > > 
> 
> -- 
> Josh
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