On Mon, Oct 21, 2013 at 05:36:24PM +0100, Ken Moffat wrote:
> On Mon, Oct 21, 2013 at 04:02:58PM +0000, Edward Welbourne wrote:
> > > It's the long one (subdir-dtc) where the problem exists.
> >
> > Obvious first step: configure quiet-command to actually show the
> > command, or remove this wrapping from the command, so that you can see
> > what the sub-make actually gets invoked with. We can guess, but it may
> > help to be entirely clear ! One thing to watch for: I'm not sure
> > whether all your quotes are actually going to survive the make-file
> > parsing and reach the shell ...
> >
> > I'm intrigued (but it's almost certainly off topic) that your calls to
> > quiet-command all end in a comma, $(call quiet-command,actual command,)
> > - what does quiet-command do with $2 ?
> >
> > Eddy.
>
> I haven't even figured out where quiet-command is located. I'm
> only an integration monkey, checking that everything in our "distro"
> (BLFS) will build with make-4.0. Will take a look.
>
> ĸen
1. The quiet-command is in rules.mak -
quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
And it's used in that file as well as generally. I'm not
sufficiently versed in this to try to change it - in particular I
don't grok the @$1 at the end. I do know that $V is normally unset
(it adds verbosity). Absolutely no idea about the comma, unless it
is syntactic sugar for a different make.
2. Unfortunately, rules.mak *is* adding -rR to the MAKEFLAGS -
# Don't use implicit rules or variables
# we have explicit rules for everything
MAKEFLAGS += -rR
Thanks for getting me to look at that.
I'll attach rules.mak. Is this a qemu bug which just happened to
work in make-3.82, or a make problem ?
ĸen
--
das eine Mal als Tragödie, dieses Mal als Farce
# Don't use implicit rules or variables
# we have explicit rules for everything
MAKEFLAGS += -rR
# Files with this suffixes are final, don't try to generate them
# using implicit rules
%.d:
%.h:
%.c:
%.m:
%.mak:
# Flags for dependency generation
QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(*D)/$(*F).d
# Same as -I$(SRC_PATH) -I., but for the nested source/object directories
QEMU_INCLUDES += -I$(<D) -I$(@D)
%.o: %.c
$(call quiet-command,$(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS)
$(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," CC $(TARGET_DIR)$@")
%.o: %.rc
$(call quiet-command,$(WINDRES) -I. -o $@ $<," RC $(TARGET_DIR)$@")
ifeq ($(LIBTOOL),)
LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \
$(sort $(filter %.o, $1)) $(filter-out %.o, $1) $(version-obj-y) \
$(LIBS)," LINK $(TARGET_DIR)$@")
else
LIBTOOL += $(if $(V),,--quiet)
%.lo: %.c
$(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC $(CC)
$(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," lt CC
$@")
%.lo: %.rc
$(call quiet-command,$(LIBTOOL) --mode=compile --tag=RC $(WINDRES) -I.
-o $@ $<,"lt RC $(TARGET_DIR)$@")
%.lo: %.dtrace
$(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC dtrace -o $@ -G
-s $<, " lt GEN $(TARGET_DIR)$@")
LINK = $(call quiet-command,\
$(if $(filter %.lo %.la,$^),$(LIBTOOL) --mode=link --tag=CC \
)$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \
$(sort $(filter %.o, $1)) $(filter-out %.o, $1) \
$(if $(filter %.lo %.la,$^),$(version-lobj-y),$(version-obj-y)) \
$(if $(filter %.lo %.la,$^),$(LIBTOOLFLAGS)) \
$(LIBS),$(if $(filter %.lo %.la,$^),"lt LINK ", " LINK
")"$(TARGET_DIR)$@")
endif
%.asm: %.S
$(call quiet-command,$(CPP) $(QEMU_INCLUDES) $(QEMU_CFLAGS)
$(QEMU_DGFLAGS) $(CFLAGS) -o $@ $<," CPP $(TARGET_DIR)$@")
%.o: %.asm
$(call quiet-command,$(AS) $(ASFLAGS) -o $@ $<," AS
$(TARGET_DIR)$@")
%.o: %.m
$(call quiet-command,$(OBJCC) $(QEMU_INCLUDES) $(QEMU_CFLAGS)
$(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," OBJC $(TARGET_DIR)$@")
%.o: %.dtrace
$(call quiet-command,dtrace -o $@ -G -s $<, " GEN $(TARGET_DIR)$@")
%$(EXESUF): %.o
$(call LINK,$^)
%.a:
$(call quiet-command,rm -f $@ && $(AR) rcs $@ $^," AR
$(TARGET_DIR)$@")
quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
# cc-option
# Usage: CFLAGS+=$(call cc-option, -falign-functions=0, -malign-functions=0)
cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
>/dev/null 2>&1 && echo OK), $2, $3)
VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.texi %.sh %.rc
set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN)
$1)))
# find-in-path
# Usage: $(call find-in-path, prog)
# Looks in the PATH if the argument contains no slash, else only considers one
# specific directory. Returns an # empty string if the program doesn't exist
# there.
find-in-path = $(if $(find-string /, $1), \
$(wildcard $1), \
$(wildcard $(patsubst %, %/$1, $(subst :, ,$(PATH)))))
# Generate files with tracetool
TRACETOOL=$(PYTHON) $(SRC_PATH)/scripts/tracetool.py
# Generate timestamp files for .h include files
config-%.h: config-%.h-timestamp
@cmp $< $@ >/dev/null 2>&1 || cp $< $@
config-%.h-timestamp: config-%.mak
$(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@, "
GEN $(TARGET_DIR)config-$*.h")
.PHONY: clean-timestamp
clean-timestamp:
rm -f *.timestamp
clean: clean-timestamp
# will delete the target of a rule if commands exit with a nonzero exit status
.DELETE_ON_ERROR:
# magic to descend into other directories
obj := .
old-nested-dirs :=
define push-var
$(eval save-$2-$1 = $(value $1))
$(eval $1 :=)
endef
define pop-var
$(eval subdir-$2-$1 := $(if $(filter $2,$(save-$2-$1)),$(addprefix $2,$($1))))
$(eval $1 = $(value save-$2-$1) $$(subdir-$2-$1))
$(eval save-$2-$1 :=)
endef
define unnest-dir
$(foreach var,$(nested-vars),$(call push-var,$(var),$1/))
$(eval obj := $(obj)/$1)
$(eval include $(SRC_PATH)/$1/Makefile.objs)
$(eval obj := $(patsubst %/$1,%,$(obj)))
$(foreach var,$(nested-vars),$(call pop-var,$(var),$1/))
endef
define unnest-vars-1
$(eval nested-dirs := $(filter-out \
$(old-nested-dirs), \
$(sort $(foreach var,$(nested-vars), $(filter %/, $($(var)))))))
$(if $(nested-dirs),
$(foreach dir,$(nested-dirs),$(call unnest-dir,$(patsubst %/,%,$(dir))))
$(eval old-nested-dirs := $(old-nested-dirs) $(nested-dirs))
$(call unnest-vars-1))
endef
define unnest-vars
$(call unnest-vars-1)
$(foreach var,$(nested-vars),$(eval $(var) := $(filter-out %/, $($(var)))))
$(shell mkdir -p $(sort $(foreach var,$(nested-vars),$(dir $($(var))))))
$(foreach var,$(nested-vars), $(eval \
-include $(addsuffix *.d, $(sort $(dir $($(var)))))))
endef
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