X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=rules.mak;h=d0b04e44f544ee8434b8f5f9628d2cc7ecfcdf6d;hb=4fd50339c0b55fa6387fa3c28f755c306997064c;hp=a4955da9f30f14adde78eb0b07f907b9325fa597;hpb=93a0dba7ea7968ad558b225fce8d4b6527308b3f;p=qemu.git

diff --git a/rules.mak b/rules.mak
index a4955da9f..d0b04e44f 100644
--- a/rules.mak
+++ b/rules.mak
@@ -1,19 +1,117 @@
 
+# 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) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<,CC $@)
+	$(call quiet-command,$(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  CC    $(TARGET_DIR)$@")
+
+ifeq ($(LIBTOOL),)
+%.lo: %.c
+	@echo "missing libtool. please install and rerun configure"; exit 1
+else
+%.lo: %.c
+	$(call quiet-command,$(LIBTOOL) --mode=compile --quiet --tag=CC $(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  lt CC $@")
+endif
 
 %.o: %.S
-	$(call quiet-command,$(CC) $(CPPFLAGS) -c -o $@ $<,AS $@)
+	$(call quiet-command,$(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  AS    $(TARGET_DIR)$@")
 
 %.o: %.m
-	$(call quiet-command,$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<,OBJC $@)
+	$(call quiet-command,$(OBJCC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  OBJC  $(TARGET_DIR)$@")
 
-LINK = $(call quiet-command,$(CC) $(LDFLAGS) -o $@ $^ $(LIBS),LINK $@)
+LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ $(sort $(filter %.o, $1)) $(filter-out %.o, $1) $(LIBS),"  LINK  $(TARGET_DIR)$@")
 
 %$(EXESUF): %.o
-	$(LINK)
+	$(call LINK,$^)
 
 %.a:
-	$(call quiet-command,rm -f $@ && $(AR) rcs $@ $^,AR $@)
+	$(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
+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
+
+%.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 $@ $*.h
+
+# will delete the target of a rule if commands exit with a nonzero exit status
+.DELETE_ON_ERROR:
+
+# magic to descend into other directories
+
+obj := .
+old-nested-dirs :=
+
+define push-var
+$(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
 
-quiet-command = $(if $(V),$1,@echo $2 && $1)
+define unnest-vars
+$(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