diff options
Diffstat (limited to 'rules.mak')
-rw-r--r-- | rules.mak | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/rules.mak b/rules.mak new file mode 100644 index 0000000..ed59c9e --- /dev/null +++ b/rules.mak @@ -0,0 +1,64 @@ + +# 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 + +%.o: %.c + $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," CC $(TARGET_DIR)$@") + +%.o: %.S + $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," AS $(TARGET_DIR)$@") + +%.o: %.m + $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," OBJC $(TARGET_DIR)$@") + +LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ $(1) $(LIBS)," LINK $(TARGET_DIR)$@") + +%$(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 +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 timestamp files for .h include files + +%.h: %.h-timestamp + @test -f $@ || cp $< $@ + +%.h-timestamp: %.mak + $(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@, " GEN $*.h") + @cmp $@ $*.h >/dev/null 2>&1 || cp $@ $*.h + +# will delete the target of a rule if commands exit with a nonzero exit status +.DELETE_ON_ERROR: |