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Makefile: Rename targets for make recursion

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We make a few sub-directories recursively, in particular
$(TARGET_DIRS).

For goal "all", we do it the nice way: "all" has a prerequisite
subdir-T for each T in $(TARGET_DIRS), and T's recipe runs make
recursively.  Behaves nicely with -j and -k.

For other goals such as "clean" and "install", the recipe runs make
recursively in a for loop.  Ignores -j and -k.

The next commit will fix that for "clean" and "install".  This commit
prepares the ground by renaming the targets we use for "all" to
include the goal for the sub-make.  This will permit reusing them for
goals other than "all".

Targets subdir-T for T in $(TARGET_DIRS) run "make all" in T.  Rename
to T/all, and declare phony.

Targets romsubdir-R for R in $(ROMS) run "make" in pc-bios/R.  Default
goal is "all" for all R.  Rename to pc-bios/R/all, and declare phony.

The remainder are renamed just for consistency.

Target subdir-dtc runs "make libbft/libfdt.a" in dtc.  Rename to
dtc/all, and declare phony.

Target subdir-capstone runs make $(BUILD_DIR)/capstone/$(LIBCAPSTONE)
in $(SRC_PATH)/capstone.  Rename to capstone/all, and declare phony.

Target subdir-slirp runs "make" in $(SRC_PATH)/slirp.  Default goal is
all, which builds $(BUILD_DIR)/libslirp.a.  Rename to slirp/all, and
declare phony.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190528082308.22032-4-armbru@redhat.com>
[Add compatibility gunk to keep make working across the rename]
This commit is contained in:
Markus Armbruster committed 2019-07-03 13:18:17 +02:00
1 parent 30cccc9b02
commit 3b8593eeaa
3 files changed
+30 -17
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Makefile
+24 -12
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@@ -454,8 +454,8 @@ config-host.h-timestamp: config-host.mak
qemu-options.def: $(SRC_PATH)/qemu-options.hx $(SRC_PATH)/scripts/hxtool
$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"GEN","$@")
SUBDIR_RULES=$(patsubst %,subdir-%, $(TARGET_DIRS))
SOFTMMU_SUBDIR_RULES=$(filter %-softmmu,$(SUBDIR_RULES))
SUBDIR_RULES=$(addsuffix /all, $(TARGET_DIRS))
SOFTMMU_SUBDIR_RULES=$(filter %-softmmu/all,$(SUBDIR_RULES))
$(SOFTMMU_SUBDIR_RULES): $(authz-obj-y)
$(SOFTMMU_SUBDIR_RULES): $(block-obj-y)
@@ -465,14 +465,16 @@ $(SOFTMMU_SUBDIR_RULES): $(io-obj-y)
$(SOFTMMU_SUBDIR_RULES): config-all-devices.mak
$(SOFTMMU_SUBDIR_RULES): $(edk2-decompressed)
subdir-%:
$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $* V="$(V)" TARGET_DIR="$*/" all,)
.PHONY: $(SUBDIR_RULES)
$(SUBDIR_RULES):
$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $(dir $@) V="$(V)" TARGET_DIR="$(dir $@)" all,)
DTC_MAKE_ARGS=-I$(SRC_PATH)/dtc VPATH=$(SRC_PATH)/dtc -C dtc V="$(V)" LIBFDT_srcdir=$(SRC_PATH)/dtc/libfdt
DTC_CFLAGS=$(CFLAGS) $(QEMU_CFLAGS)
DTC_CPPFLAGS=-I$(BUILD_DIR)/dtc -I$(SRC_PATH)/dtc -I$(SRC_PATH)/dtc/libfdt
subdir-dtc: .git-submodule-status dtc/libfdt dtc/tests
.PHONY: dtc/all
dtc/all: .git-submodule-status dtc/libfdt dtc/tests
$(call quiet-command,$(MAKE) $(DTC_MAKE_ARGS) CPPFLAGS="$(DTC_CPPFLAGS)" CFLAGS="$(DTC_CFLAGS)" LDFLAGS="$(LDFLAGS)" ARFLAGS="$(ARFLAGS)" CC="$(CC)" AR="$(AR)" LD="$(LD)" $(SUBDIR_MAKEFLAGS) libfdt/libfdt.a,)
dtc/%: .git-submodule-status
@@ -490,21 +492,31 @@ CAP_CFLAGS += -DCAPSTONE_HAS_ARM64
CAP_CFLAGS += -DCAPSTONE_HAS_POWERPC
CAP_CFLAGS += -DCAPSTONE_HAS_X86
subdir-capstone: .git-submodule-status
.PHONY: capstone/all
capstone/all: .git-submodule-status
$(call quiet-command,$(MAKE) -C $(SRC_PATH)/capstone CAPSTONE_SHARED=no BUILDDIR="$(BUILD_DIR)/capstone" CC="$(CC)" AR="$(AR)" LD="$(LD)" RANLIB="$(RANLIB)" CFLAGS="$(CAP_CFLAGS)" $(SUBDIR_MAKEFLAGS) $(BUILD_DIR)/capstone/$(LIBCAPSTONE))
subdir-slirp: .git-submodule-status
.PHONY: slirp/all
slirp/all: .git-submodule-status
$(call quiet-command,$(MAKE) -C $(SRC_PATH)/slirp BUILD_DIR="$(BUILD_DIR)/slirp" CC="$(CC)" AR="$(AR)" LD="$(LD)" RANLIB="$(RANLIB)" CFLAGS="$(QEMU_CFLAGS) $(CFLAGS)" LDFLAGS="$(LDFLAGS)")
# Compatibility gunk to keep make working across the rename of targets
# for recursion, to be removed some time after 4.1.
subdir-dtc: dtc/all
subdir-capstone: capstone/all
subdir-slirp: slirp/all
$(SUBDIR_RULES): libqemuutil.a $(common-obj-y) \
$(qom-obj-y) $(crypto-user-obj-$(CONFIG_USER_ONLY))
ROMSUBDIR_RULES=$(patsubst %,romsubdir-%, $(ROMS))
ROM_DIRS = $(addprefix pc-bios/, $(ROMS))
ROMSUBDIR_RULES=$(addsuffix /all, $(ROM_DIRS))
# Only keep -O and -g cflags
romsubdir-%:
$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C pc-bios/$* V="$(V)" TARGET_DIR="$*/" CFLAGS="$(filter -O% -g%,$(CFLAGS))",)
.PHONY: $(ROMSUBDIR_RULES)
$(ROMSUBDIR_RULES):
$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $(dir $@) V="$(V)" TARGET_DIR="$(dir $@)" CFLAGS="$(filter -O% -g%,$(CFLAGS))",)
ALL_SUBDIRS=$(TARGET_DIRS) $(patsubst %,pc-bios/%, $(ROMS))
ALL_SUBDIRS=$(TARGET_DIRS) $(ROM_DIRS)
recurse-all: $(SUBDIR_RULES) $(ROMSUBDIR_RULES)
@@ -1131,7 +1143,7 @@ endif
@$(if $(TARGET_DIRS), \
echo 'Architecture specific targets:'; \
$(foreach t, $(TARGET_DIRS), \
printf " %-30s - Build for %s\\n" $(patsubst %,subdir-%,$(t)) $(t);) \
printf " %-30s - Build for %s\\n" $(t)/all $(t);) \
echo '')
@echo 'Cleaning targets:'
@echo ' clean - Remove most generated files but keep the config'