[Qemu-devel] [RFC v4 3/7] Makefile: Rename targets for make recursion

Markus Armbruster posted 7 patches 6 years, 8 months ago
There is a newer version of this series
[Qemu-devel] [RFC v4 3/7] Makefile: Rename targets for make recursion
Posted by Markus Armbruster 6 years, 8 months ago
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>
---
 Makefile               | 30 ++++++++++++++++++------------
 configure              |  6 +++---
 tests/Makefile.include |  3 ++-
 3 files changed, 23 insertions(+), 16 deletions(-)

diff --git a/Makefile b/Makefile
index 12e470fa03..09c726bcc2 100644
--- a/Makefile
+++ b/Makefile
@@ -436,8 +436,8 @@ 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)
@@ -447,14 +447,16 @@ $(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
@@ -472,21 +474,25 @@ 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)")
 
 $(SUBDIR_RULES): libqemuutil.a $(common-obj-y) \
 	$(qom-obj-y) $(crypto-aes-obj-$(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)
 
@@ -1087,7 +1093,7 @@ 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 $(t);) \
 		echo '')
 	@echo  'Cleaning targets:'
 	@echo  '  clean           - Remove most generated files but keep the config'
diff --git a/configure b/configure
index d2fc346302..2897434dda 100755
--- a/configure
+++ b/configure
@@ -6570,7 +6570,7 @@ if test "$slirp" != "no"; then
   echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
 fi
 if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
-    echo "config-host.h: subdir-slirp" >> $config_host_mak
+    echo "config-host.h: slirp/all" >> $config_host_mak
 fi
 if test "$vde" = "yes" ; then
   echo "CONFIG_VDE=y" >> $config_host_mak
@@ -7836,10 +7836,10 @@ if test -n "$enabled_cross_compilers"; then
 fi
 
 if [ "$fdt" = "git" ]; then
-  echo "config-host.h: subdir-dtc" >> $config_host_mak
+  echo "config-host.h: dtc/all" >> $config_host_mak
 fi
 if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
-  echo "config-host.h: subdir-capstone" >> $config_host_mak
+  echo "config-host.h: capstone/all" >> $config_host_mak
 fi
 if test -n "$LIBCAPSTONE"; then
   echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
diff --git a/tests/Makefile.include b/tests/Makefile.include
index 1865f6b322..2b8d34ca25 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -1,3 +1,4 @@
+# -*- Mode: makefile -*-
 
 .PHONY: check-help
 check-help:
@@ -880,7 +881,7 @@ define do_test_tap
 endef
 
 .PHONY: $(patsubst %, check-qtest-%, $(QTEST_TARGETS))
-$(patsubst %, check-qtest-%, $(QTEST_TARGETS)): check-qtest-%: subdir-%-softmmu $(check-qtest-y)
+$(patsubst %, check-qtest-%, $(QTEST_TARGETS)): check-qtest-%: %-softmmu/all $(check-qtest-y)
 	$(call do_test_human,$(check-qtest-$*-y) $(check-qtest-generic-y), \
 	  QTEST_QEMU_BINARY=$*-softmmu/qemu-system-$* \
 	  QTEST_QEMU_IMG=qemu-img$(EXESUF))
-- 
2.17.2


Re: [Qemu-devel] [RFC v4 3/7] Makefile: Rename targets for make recursion
Posted by Richard Henderson 6 years, 8 months ago
On 5/23/19 4:15 AM, Markus Armbruster wrote:
> 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>
> ---
>  Makefile               | 30 ++++++++++++++++++------------
>  configure              |  6 +++---
>  tests/Makefile.include |  3 ++-
>  3 files changed, 23 insertions(+), 16 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~


Re: [Qemu-devel] [RFC v4 3/7] Makefile: Rename targets for make recursion
Posted by Philippe Mathieu-Daudé 6 years, 8 months ago
On 5/23/19 10:15 AM, Markus Armbruster wrote:
> 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>
> ---
>  Makefile               | 30 ++++++++++++++++++------------
>  configure              |  6 +++---
>  tests/Makefile.include |  3 ++-
>  3 files changed, 23 insertions(+), 16 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 12e470fa03..09c726bcc2 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -436,8 +436,8 @@ 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)
> @@ -447,14 +447,16 @@ $(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,)

OK

>  
>  dtc/%: .git-submodule-status
> @@ -472,21 +474,25 @@ 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))

OK

>  
> -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)")

OK

>  
>  $(SUBDIR_RULES): libqemuutil.a $(common-obj-y) \
>  	$(qom-obj-y) $(crypto-aes-obj-$(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))",)

OK

>  
> -ALL_SUBDIRS=$(TARGET_DIRS) $(patsubst %,pc-bios/%, $(ROMS))
> +ALL_SUBDIRS=$(TARGET_DIRS) $(ROM_DIRS)
>  
>  recurse-all: $(SUBDIR_RULES) $(ROMSUBDIR_RULES)
>  
> @@ -1087,7 +1093,7 @@ endif
>  	@$(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);) \

OK

>  		echo '')
>  	@echo  'Cleaning targets:'
>  	@echo  '  clean           - Remove most generated files but keep the config'
> diff --git a/configure b/configure
> index d2fc346302..2897434dda 100755
> --- a/configure
> +++ b/configure
> @@ -6570,7 +6570,7 @@ if test "$slirp" != "no"; then
>    echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
>  fi
>  if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
> -    echo "config-host.h: subdir-slirp" >> $config_host_mak
> +    echo "config-host.h: slirp/all" >> $config_host_mak
>  fi
>  if test "$vde" = "yes" ; then
>    echo "CONFIG_VDE=y" >> $config_host_mak
> @@ -7836,10 +7836,10 @@ if test -n "$enabled_cross_compilers"; then
>  fi
>  
>  if [ "$fdt" = "git" ]; then
> -  echo "config-host.h: subdir-dtc" >> $config_host_mak
> +  echo "config-host.h: dtc/all" >> $config_host_mak
>  fi
>  if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
> -  echo "config-host.h: subdir-capstone" >> $config_host_mak
> +  echo "config-host.h: capstone/all" >> $config_host_mak
>  fi
>  if test -n "$LIBCAPSTONE"; then
>    echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
> diff --git a/tests/Makefile.include b/tests/Makefile.include
> index 1865f6b322..2b8d34ca25 100644
> --- a/tests/Makefile.include
> +++ b/tests/Makefile.include
> @@ -1,3 +1,4 @@
> +# -*- Mode: makefile -*-
>  
>  .PHONY: check-help
>  check-help:
> @@ -880,7 +881,7 @@ define do_test_tap
>  endef
>  
>  .PHONY: $(patsubst %, check-qtest-%, $(QTEST_TARGETS))
> -$(patsubst %, check-qtest-%, $(QTEST_TARGETS)): check-qtest-%: subdir-%-softmmu $(check-qtest-y)
> +$(patsubst %, check-qtest-%, $(QTEST_TARGETS)): check-qtest-%: %-softmmu/all $(check-qtest-y)
>  	$(call do_test_human,$(check-qtest-$*-y) $(check-qtest-generic-y), \
>  	  QTEST_QEMU_BINARY=$*-softmmu/qemu-system-$* \
>  	  QTEST_QEMU_IMG=qemu-img$(EXESUF))
> 

There is another one:

-- >8 --
 # gtester tests with TAP output

-$(patsubst %, check-report-qtest-%.tap, $(QTEST_TARGETS)):
check-report-qtest-%.tap: subdir-%-softmmu $(check-qtest-y)
+$(patsubst %, check-report-qtest-%.tap, $(QTEST_TARGETS)):
check-report-qtest-%.tap: %-softmmu/all $(check-qtest-y)
        $(call do_test_tap, $(check-qtest-$*-y) $(check-qtest-generic-y), \
          QTEST_QEMU_BINARY=$*-softmmu/qemu-system-$* \
          QTEST_QEMU_IMG=qemu-img$(EXESUF))
---

With the fix amended:
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>

Regards,

Phil.

Re: [Qemu-devel] [RFC v4 3/7] Makefile: Rename targets for make recursion
Posted by Markus Armbruster 6 years, 8 months ago
Philippe Mathieu-Daudé <philmd@redhat.com> writes:

> On 5/23/19 10:15 AM, Markus Armbruster wrote:
>> 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>
>> ---
>>  Makefile               | 30 ++++++++++++++++++------------
>>  configure              |  6 +++---
>>  tests/Makefile.include |  3 ++-
>>  3 files changed, 23 insertions(+), 16 deletions(-)
>> 
>> diff --git a/Makefile b/Makefile
>> index 12e470fa03..09c726bcc2 100644
>> --- a/Makefile
>> +++ b/Makefile
>> @@ -436,8 +436,8 @@ 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)
>> @@ -447,14 +447,16 @@ $(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,)
>
> OK
>
>>  
>>  dtc/%: .git-submodule-status
>> @@ -472,21 +474,25 @@ 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))
>
> OK
>
>>  
>> -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)")
>
> OK
>
>>  
>>  $(SUBDIR_RULES): libqemuutil.a $(common-obj-y) \
>>  	$(qom-obj-y) $(crypto-aes-obj-$(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%,$(CFLAGS))",)
>
> OK
>
>>  
>> -ALL_SUBDIRS=$(TARGET_DIRS) $(patsubst %,pc-bios/%, $(ROMS))
>> +ALL_SUBDIRS=$(TARGET_DIRS) $(ROM_DIRS)
>>  
>>  recurse-all: $(SUBDIR_RULES) $(ROMSUBDIR_RULES)
>>  
>> @@ -1087,7 +1093,7 @@ endif
>>  	@$(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 $(t);) \
>
> OK
>
>>  		echo '')
>>  	@echo  'Cleaning targets:'
>>  	@echo  '  clean           - Remove most generated files but keep the config'
>> diff --git a/configure b/configure
>> index d2fc346302..2897434dda 100755
>> --- a/configure
>> +++ b/configure
>> @@ -6570,7 +6570,7 @@ if test "$slirp" != "no"; then
>>    echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
>>  fi
>>  if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
>> -    echo "config-host.h: subdir-slirp" >> $config_host_mak
>> +    echo "config-host.h: slirp/all" >> $config_host_mak
>>  fi
>>  if test "$vde" = "yes" ; then
>>    echo "CONFIG_VDE=y" >> $config_host_mak
>> @@ -7836,10 +7836,10 @@ if test -n "$enabled_cross_compilers"; then
>>  fi
>>  
>>  if [ "$fdt" = "git" ]; then
>> -  echo "config-host.h: subdir-dtc" >> $config_host_mak
>> +  echo "config-host.h: dtc/all" >> $config_host_mak
>>  fi
>>  if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
>> -  echo "config-host.h: subdir-capstone" >> $config_host_mak
>> +  echo "config-host.h: capstone/all" >> $config_host_mak
>>  fi
>>  if test -n "$LIBCAPSTONE"; then
>>    echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
>> diff --git a/tests/Makefile.include b/tests/Makefile.include
>> index 1865f6b322..2b8d34ca25 100644
>> --- a/tests/Makefile.include
>> +++ b/tests/Makefile.include
>> @@ -1,3 +1,4 @@
>> +# -*- Mode: makefile -*-
>>  
>>  .PHONY: check-help
>>  check-help:
>> @@ -880,7 +881,7 @@ define do_test_tap
>>  endef
>>  
>>  .PHONY: $(patsubst %, check-qtest-%, $(QTEST_TARGETS))
>> -$(patsubst %, check-qtest-%, $(QTEST_TARGETS)): check-qtest-%: subdir-%-softmmu $(check-qtest-y)
>> +$(patsubst %, check-qtest-%, $(QTEST_TARGETS)): check-qtest-%: %-softmmu/all $(check-qtest-y)
>>  	$(call do_test_human,$(check-qtest-$*-y) $(check-qtest-generic-y), \
>>  	  QTEST_QEMU_BINARY=$*-softmmu/qemu-system-$* \
>>  	  QTEST_QEMU_IMG=qemu-img$(EXESUF))
>> 
>
> There is another one:
>
> -- >8 --
>  # gtester tests with TAP output
>
> -$(patsubst %, check-report-qtest-%.tap, $(QTEST_TARGETS)): check-report-qtest-%.tap: subdir-%-softmmu $(check-qtest-y)
> +$(patsubst %, check-report-qtest-%.tap, $(QTEST_TARGETS)): check-report-qtest-%.tap: %-softmmu/all $(check-qtest-y)
>         $(call do_test_tap, $(check-qtest-$*-y) $(check-qtest-generic-y), \
>           QTEST_QEMU_BINARY=$*-softmmu/qemu-system-$* \
>           QTEST_QEMU_IMG=qemu-img$(EXESUF))

Good catch.

> ---
>
> With the fix amended:
> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>

Thanks!