X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=rules.mak;h=49edb9bf07eca605858f5070b9db2340346b7ffd;hb=8b7acc79b9adb4dda6cc867b90e3a1e873f4f7e8;hp=4bc5e52fa3295b8388670b6d9e4fd94dade7f314;hpb=fa79c914efd35cb60e0bc18512c03690c48b13e2;p=qemu.git diff --git a/rules.mak b/rules.mak index 4bc5e52fa..49edb9bf0 100644 --- a/rules.mak +++ b/rules.mak @@ -8,30 +8,60 @@ MAKEFLAGS += -rR %.d: %.h: %.c: +%.cpp: %.m: %.mak: +# Flags for C++ compilation +QEMU_CXXFLAGS = -D__STDC_LIMIT_MACROS $(filter-out -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wredundant-decls, $(QEMU_CFLAGS)) + # Flags for dependency generation QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(*D)/$(*F).d +# Same as -I$(SRC_PATH) -I., but for the nested source/object directories +QEMU_INCLUDES += -I$(/dev/null 2>&1 && echo OK), $2, $3) -VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.texi %.sh +VPATH_SUFFIXES = %.c %.h %.S %.cpp %.m %.mak %.texi %.sh %.rc set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1))) # find-in-path @@ -59,17 +89,49 @@ find-in-path = $(if $(find-string /, $1), \ $(wildcard $1), \ $(wildcard $(patsubst %, %/$1, $(subst :, ,$(PATH))))) +# Logical functions (for operating on y/n values like CONFIG_FOO vars) +# Inputs to these must be either "y" (true) or "n" or "" (both false) +# Output is always either "y" or "n". +# Usage: $(call land,$(CONFIG_FOO),$(CONFIG_BAR)) +# Logical NOT +lnot = $(if $(subst n,,$1),n,y) +# Logical AND +land = $(if $(findstring yy,$1$2),y,n) +# Logical OR +lor = $(if $(findstring y,$1$2),y,n) +# Logical XOR (note that this is the inverse of leqv) +lxor = $(if $(filter $(call lnot,$1),$(call lnot,$2)),n,y) +# Logical equivalence (note that leqv "","n" is true) +leqv = $(if $(filter $(call lnot,$1),$(call lnot,$2)),y,n) +# Logical if: like make's $(if) but with an leqv-like test +lif = $(if $(subst n,,$1),$2,$3) + +# String testing functions: inputs to these can be any string; +# the output is always either "y" or "n". Leading and trailing whitespace +# is ignored when comparing strings. +# String equality +eq = $(if $(subst $2,,$1)$(subst $1,,$2),n,y) +# String inequality +ne = $(if $(subst $2,,$1)$(subst $1,,$2),y,n) +# Emptiness/non-emptiness tests: +isempty = $(if $1,n,y) +notempty = $(if $1,y,n) + # Generate files with tracetool TRACETOOL=$(PYTHON) $(SRC_PATH)/scripts/tracetool.py # Generate timestamp files for .h include files -%.h: %.h-timestamp - @test -f $@ || cp $< $@ +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") -%.h-timestamp: %.mak - $(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@, " GEN $*.h") - @cmp $@ $*.h >/dev/null 2>&1 || cp $@ $*.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: @@ -112,4 +174,6 @@ 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