* [Qemu-devel] [PATCH v2] qapi: Reduce Makefile boilerplate
@ 2018-11-15 22:50 Eric Blake
2018-11-15 22:59 ` Paolo Bonzini
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Eric Blake @ 2018-11-15 22:50 UTC (permalink / raw)
To: qemu-devel; +Cc: armbru, pbonzini, xiezhide, qemu-trivial
Adding a new qapi module requires some rather tedious repetition to
wire it into Makefile and Makefile.objs. Add some indirection by
taking advantage of GNU Make string processing to expand a list
of module names into all the required artifacts, so that future
additions of a new module need only touch the list of module names.
The list has to live in Makefile.objs, due to the way that
unnest-vars slirps in that file without remembering any definition
of $(QAPI_MODULES) from Makefile.
Signed-off-by: Eric Blake <eblake@redhat.com>
---
v2: also condense Makefile.objs, prefer $(FOO:%=a%b) over
%(patsubst %,a%b,$(foo))
---
Makefile | 192 ++++++--------------------------------------------
Makefile.objs | 75 ++------------------
2 files changed, 30 insertions(+), 237 deletions(-)
diff --git a/Makefile b/Makefile
index f2947186a4c..c8b9efdad4b 100644
--- a/Makefile
+++ b/Makefile
@@ -88,82 +88,26 @@ endif
include $(SRC_PATH)/rules.mak
GENERATED_FILES = qemu-version.h config-host.h qemu-options.def
-GENERATED_FILES += qapi/qapi-builtin-types.h qapi/qapi-builtin-types.c
-GENERATED_FILES += qapi/qapi-types.h qapi/qapi-types.c
-GENERATED_FILES += qapi/qapi-types-block-core.h qapi/qapi-types-block-core.c
-GENERATED_FILES += qapi/qapi-types-block.h qapi/qapi-types-block.c
-GENERATED_FILES += qapi/qapi-types-char.h qapi/qapi-types-char.c
-GENERATED_FILES += qapi/qapi-types-common.h qapi/qapi-types-common.c
-GENERATED_FILES += qapi/qapi-types-crypto.h qapi/qapi-types-crypto.c
-GENERATED_FILES += qapi/qapi-types-introspect.h qapi/qapi-types-introspect.c
-GENERATED_FILES += qapi/qapi-types-job.h qapi/qapi-types-job.c
-GENERATED_FILES += qapi/qapi-types-migration.h qapi/qapi-types-migration.c
-GENERATED_FILES += qapi/qapi-types-misc.h qapi/qapi-types-misc.c
-GENERATED_FILES += qapi/qapi-types-net.h qapi/qapi-types-net.c
-GENERATED_FILES += qapi/qapi-types-rocker.h qapi/qapi-types-rocker.c
-GENERATED_FILES += qapi/qapi-types-run-state.h qapi/qapi-types-run-state.c
-GENERATED_FILES += qapi/qapi-types-sockets.h qapi/qapi-types-sockets.c
-GENERATED_FILES += qapi/qapi-types-tpm.h qapi/qapi-types-tpm.c
-GENERATED_FILES += qapi/qapi-types-trace.h qapi/qapi-types-trace.c
-GENERATED_FILES += qapi/qapi-types-transaction.h qapi/qapi-types-transaction.c
-GENERATED_FILES += qapi/qapi-types-ui.h qapi/qapi-types-ui.c
-GENERATED_FILES += qapi/qapi-builtin-visit.h qapi/qapi-builtin-visit.c
-GENERATED_FILES += qapi/qapi-visit.h qapi/qapi-visit.c
-GENERATED_FILES += qapi/qapi-visit-block-core.h qapi/qapi-visit-block-core.c
-GENERATED_FILES += qapi/qapi-visit-block.h qapi/qapi-visit-block.c
-GENERATED_FILES += qapi/qapi-visit-char.h qapi/qapi-visit-char.c
-GENERATED_FILES += qapi/qapi-visit-common.h qapi/qapi-visit-common.c
-GENERATED_FILES += qapi/qapi-visit-crypto.h qapi/qapi-visit-crypto.c
-GENERATED_FILES += qapi/qapi-visit-introspect.h qapi/qapi-visit-introspect.c
-GENERATED_FILES += qapi/qapi-visit-job.h qapi/qapi-visit-job.c
-GENERATED_FILES += qapi/qapi-visit-migration.h qapi/qapi-visit-migration.c
-GENERATED_FILES += qapi/qapi-visit-misc.h qapi/qapi-visit-misc.c
-GENERATED_FILES += qapi/qapi-visit-net.h qapi/qapi-visit-net.c
-GENERATED_FILES += qapi/qapi-visit-rocker.h qapi/qapi-visit-rocker.c
-GENERATED_FILES += qapi/qapi-visit-run-state.h qapi/qapi-visit-run-state.c
-GENERATED_FILES += qapi/qapi-visit-sockets.h qapi/qapi-visit-sockets.c
-GENERATED_FILES += qapi/qapi-visit-tpm.h qapi/qapi-visit-tpm.c
-GENERATED_FILES += qapi/qapi-visit-trace.h qapi/qapi-visit-trace.c
-GENERATED_FILES += qapi/qapi-visit-transaction.h qapi/qapi-visit-transaction.c
-GENERATED_FILES += qapi/qapi-visit-ui.h qapi/qapi-visit-ui.c
-GENERATED_FILES += qapi/qapi-commands.h qapi/qapi-commands.c
-GENERATED_FILES += qapi/qapi-commands-block-core.h qapi/qapi-commands-block-core.c
-GENERATED_FILES += qapi/qapi-commands-block.h qapi/qapi-commands-block.c
-GENERATED_FILES += qapi/qapi-commands-char.h qapi/qapi-commands-char.c
-GENERATED_FILES += qapi/qapi-commands-common.h qapi/qapi-commands-common.c
-GENERATED_FILES += qapi/qapi-commands-crypto.h qapi/qapi-commands-crypto.c
-GENERATED_FILES += qapi/qapi-commands-introspect.h qapi/qapi-commands-introspect.c
-GENERATED_FILES += qapi/qapi-commands-job.h qapi/qapi-commands-job.c
-GENERATED_FILES += qapi/qapi-commands-migration.h qapi/qapi-commands-migration.c
-GENERATED_FILES += qapi/qapi-commands-misc.h qapi/qapi-commands-misc.c
-GENERATED_FILES += qapi/qapi-commands-net.h qapi/qapi-commands-net.c
-GENERATED_FILES += qapi/qapi-commands-rocker.h qapi/qapi-commands-rocker.c
-GENERATED_FILES += qapi/qapi-commands-run-state.h qapi/qapi-commands-run-state.c
-GENERATED_FILES += qapi/qapi-commands-sockets.h qapi/qapi-commands-sockets.c
-GENERATED_FILES += qapi/qapi-commands-tpm.h qapi/qapi-commands-tpm.c
-GENERATED_FILES += qapi/qapi-commands-trace.h qapi/qapi-commands-trace.c
-GENERATED_FILES += qapi/qapi-commands-transaction.h qapi/qapi-commands-transaction.c
-GENERATED_FILES += qapi/qapi-commands-ui.h qapi/qapi-commands-ui.c
-GENERATED_FILES += qapi/qapi-events.h qapi/qapi-events.c
-GENERATED_FILES += qapi/qapi-events-block-core.h qapi/qapi-events-block-core.c
-GENERATED_FILES += qapi/qapi-events-block.h qapi/qapi-events-block.c
-GENERATED_FILES += qapi/qapi-events-char.h qapi/qapi-events-char.c
-GENERATED_FILES += qapi/qapi-events-common.h qapi/qapi-events-common.c
-GENERATED_FILES += qapi/qapi-events-crypto.h qapi/qapi-events-crypto.c
-GENERATED_FILES += qapi/qapi-events-introspect.h qapi/qapi-events-introspect.c
-GENERATED_FILES += qapi/qapi-events-job.h qapi/qapi-events-job.c
-GENERATED_FILES += qapi/qapi-events-migration.h qapi/qapi-events-migration.c
-GENERATED_FILES += qapi/qapi-events-misc.h qapi/qapi-events-misc.c
-GENERATED_FILES += qapi/qapi-events-net.h qapi/qapi-events-net.c
-GENERATED_FILES += qapi/qapi-events-rocker.h qapi/qapi-events-rocker.c
-GENERATED_FILES += qapi/qapi-events-run-state.h qapi/qapi-events-run-state.c
-GENERATED_FILES += qapi/qapi-events-sockets.h qapi/qapi-events-sockets.c
-GENERATED_FILES += qapi/qapi-events-tpm.h qapi/qapi-events-tpm.c
-GENERATED_FILES += qapi/qapi-events-trace.h qapi/qapi-events-trace.c
-GENERATED_FILES += qapi/qapi-events-transaction.h qapi/qapi-events-transaction.c
-GENERATED_FILES += qapi/qapi-events-ui.h qapi/qapi-events-ui.c
-GENERATED_FILES += qapi/qapi-introspect.c qapi/qapi-introspect.h
-GENERATED_FILES += qapi/qapi-doc.texi
+
+#see Makefile.objs for the definition of QAPI_MODULES
+GENERATED_QAPI_FILES = qapi/qapi-builtin-types.h qapi/qapi-builtin-types.c
+GENERATED_QAPI_FILES += qapi/qapi-types.h qapi/qapi-types.c
+GENERATED_QAPI_FILES += $(QAPI_MODULES:%=qapi/qapi-types-%.h)
+GENERATED_QAPI_FILES += $(QAPI_MODULES:%=qapi/qapi-types-%.c)
+GENERATED_QAPI_FILES += qapi/qapi-builtin-visit.h qapi/qapi-builtin-visit.c
+GENERATED_QAPI_FILES += qapi/qapi-visit.h qapi/qapi-visit.c
+GENERATED_QAPI_FILES += $(QAPI_MODULES:%=qapi/qapi-visit-%.h)
+GENERATED_QAPI_FILES += $(QAPI_MODULES:%=qapi/qapi-visit-%.c)
+GENERATED_QAPI_FILES += qapi/qapi-commands.h qapi/qapi-commands.c
+GENERATED_QAPI_FILES += $(QAPI_MODULES:%=qapi/qapi-commands-%.h)
+GENERATED_QAPI_FILES += $(QAPI_MODULES:%=qapi/qapi-commands-%.c)
+GENERATED_QAPI_FILES += qapi/qapi-events.h qapi/qapi-events.c
+GENERATED_QAPI_FILES += $(QAPI_MODULES:%=qapi/qapi-events-%.h)
+GENERATED_QAPI_FILES += $(QAPI_MODULES:%=qapi/qapi-events-%.c)
+GENERATED_QAPI_FILES += qapi/qapi-introspect.c qapi/qapi-introspect.h
+GENERATED_QAPI_FILES += qapi/qapi-doc.texi
+
+GENERATED_FILES += $(GENERATED_QAPI_FILES)
GENERATED_FILES += trace/generated-tcg-tracers.h
@@ -583,100 +527,10 @@ qga/qapi-generated/qapi-gen-timestamp: $(SRC_PATH)/qga/qapi-schema.json $(qapi-p
"GEN","$(@:%-timestamp=%)")
@>$@
-qapi-modules = $(SRC_PATH)/qapi/qapi-schema.json $(SRC_PATH)/qapi/common.json \
- $(SRC_PATH)/qapi/block.json $(SRC_PATH)/qapi/block-core.json \
- $(SRC_PATH)/qapi/char.json \
- $(SRC_PATH)/qapi/crypto.json \
- $(SRC_PATH)/qapi/introspect.json \
- $(SRC_PATH)/qapi/job.json \
- $(SRC_PATH)/qapi/migration.json \
- $(SRC_PATH)/qapi/misc.json \
- $(SRC_PATH)/qapi/net.json \
- $(SRC_PATH)/qapi/rocker.json \
- $(SRC_PATH)/qapi/run-state.json \
- $(SRC_PATH)/qapi/sockets.json \
- $(SRC_PATH)/qapi/tpm.json \
- $(SRC_PATH)/qapi/trace.json \
- $(SRC_PATH)/qapi/transaction.json \
- $(SRC_PATH)/qapi/ui.json
+qapi-modules = $(SRC_PATH)/qapi/qapi-schema.json \
+ $(QAPI_MODULES:%=$(SRC_PATH)/qapi/%.json)
-qapi/qapi-builtin-types.c qapi/qapi-builtin-types.h \
-qapi/qapi-types.c qapi/qapi-types.h \
-qapi/qapi-types-block-core.c qapi/qapi-types-block-core.h \
-qapi/qapi-types-block.c qapi/qapi-types-block.h \
-qapi/qapi-types-char.c qapi/qapi-types-char.h \
-qapi/qapi-types-common.c qapi/qapi-types-common.h \
-qapi/qapi-types-crypto.c qapi/qapi-types-crypto.h \
-qapi/qapi-types-introspect.c qapi/qapi-types-introspect.h \
-qapi/qapi-types-job.c qapi/qapi-types-job.h \
-qapi/qapi-types-migration.c qapi/qapi-types-migration.h \
-qapi/qapi-types-misc.c qapi/qapi-types-misc.h \
-qapi/qapi-types-net.c qapi/qapi-types-net.h \
-qapi/qapi-types-rocker.c qapi/qapi-types-rocker.h \
-qapi/qapi-types-run-state.c qapi/qapi-types-run-state.h \
-qapi/qapi-types-sockets.c qapi/qapi-types-sockets.h \
-qapi/qapi-types-tpm.c qapi/qapi-types-tpm.h \
-qapi/qapi-types-trace.c qapi/qapi-types-trace.h \
-qapi/qapi-types-transaction.c qapi/qapi-types-transaction.h \
-qapi/qapi-types-ui.c qapi/qapi-types-ui.h \
-qapi/qapi-builtin-visit.c qapi/qapi-builtin-visit.h \
-qapi/qapi-visit.c qapi/qapi-visit.h \
-qapi/qapi-visit-block-core.c qapi/qapi-visit-block-core.h \
-qapi/qapi-visit-block.c qapi/qapi-visit-block.h \
-qapi/qapi-visit-char.c qapi/qapi-visit-char.h \
-qapi/qapi-visit-common.c qapi/qapi-visit-common.h \
-qapi/qapi-visit-crypto.c qapi/qapi-visit-crypto.h \
-qapi/qapi-visit-introspect.c qapi/qapi-visit-introspect.h \
-qapi/qapi-visit-job.c qapi/qapi-visit-job.h \
-qapi/qapi-visit-migration.c qapi/qapi-visit-migration.h \
-qapi/qapi-visit-misc.c qapi/qapi-visit-misc.h \
-qapi/qapi-visit-net.c qapi/qapi-visit-net.h \
-qapi/qapi-visit-rocker.c qapi/qapi-visit-rocker.h \
-qapi/qapi-visit-run-state.c qapi/qapi-visit-run-state.h \
-qapi/qapi-visit-sockets.c qapi/qapi-visit-sockets.h \
-qapi/qapi-visit-tpm.c qapi/qapi-visit-tpm.h \
-qapi/qapi-visit-trace.c qapi/qapi-visit-trace.h \
-qapi/qapi-visit-transaction.c qapi/qapi-visit-transaction.h \
-qapi/qapi-visit-ui.c qapi/qapi-visit-ui.h \
-qapi/qapi-commands.h qapi/qapi-commands.c \
-qapi/qapi-commands-block-core.c qapi/qapi-commands-block-core.h \
-qapi/qapi-commands-block.c qapi/qapi-commands-block.h \
-qapi/qapi-commands-char.c qapi/qapi-commands-char.h \
-qapi/qapi-commands-common.c qapi/qapi-commands-common.h \
-qapi/qapi-commands-crypto.c qapi/qapi-commands-crypto.h \
-qapi/qapi-commands-introspect.c qapi/qapi-commands-introspect.h \
-qapi/qapi-commands-job.c qapi/qapi-commands-job.h \
-qapi/qapi-commands-migration.c qapi/qapi-commands-migration.h \
-qapi/qapi-commands-misc.c qapi/qapi-commands-misc.h \
-qapi/qapi-commands-net.c qapi/qapi-commands-net.h \
-qapi/qapi-commands-rocker.c qapi/qapi-commands-rocker.h \
-qapi/qapi-commands-run-state.c qapi/qapi-commands-run-state.h \
-qapi/qapi-commands-sockets.c qapi/qapi-commands-sockets.h \
-qapi/qapi-commands-tpm.c qapi/qapi-commands-tpm.h \
-qapi/qapi-commands-trace.c qapi/qapi-commands-trace.h \
-qapi/qapi-commands-transaction.c qapi/qapi-commands-transaction.h \
-qapi/qapi-commands-ui.c qapi/qapi-commands-ui.h \
-qapi/qapi-events.c qapi/qapi-events.h \
-qapi/qapi-events-block-core.c qapi/qapi-events-block-core.h \
-qapi/qapi-events-block.c qapi/qapi-events-block.h \
-qapi/qapi-events-char.c qapi/qapi-events-char.h \
-qapi/qapi-events-common.c qapi/qapi-events-common.h \
-qapi/qapi-events-crypto.c qapi/qapi-events-crypto.h \
-qapi/qapi-events-introspect.c qapi/qapi-events-introspect.h \
-qapi/qapi-events-job.c qapi/qapi-events-job.h \
-qapi/qapi-events-migration.c qapi/qapi-events-migration.h \
-qapi/qapi-events-misc.c qapi/qapi-events-misc.h \
-qapi/qapi-events-net.c qapi/qapi-events-net.h \
-qapi/qapi-events-rocker.c qapi/qapi-events-rocker.h \
-qapi/qapi-events-run-state.c qapi/qapi-events-run-state.h \
-qapi/qapi-events-sockets.c qapi/qapi-events-sockets.h \
-qapi/qapi-events-tpm.c qapi/qapi-events-tpm.h \
-qapi/qapi-events-trace.c qapi/qapi-events-trace.h \
-qapi/qapi-events-transaction.c qapi/qapi-events-transaction.h \
-qapi/qapi-events-ui.c qapi/qapi-events-ui.h \
-qapi/qapi-introspect.h qapi/qapi-introspect.c \
-qapi/qapi-doc.texi: \
-qapi-gen-timestamp ;
+$(GENERATED_QAPI_FILES): qapi-gen-timestamp ;
qapi-gen-timestamp: $(qapi-modules) $(qapi-py)
$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-gen.py \
-o "qapi" -b $<, \
diff --git a/Makefile.objs b/Makefile.objs
index 1e1ff387d79..56af0347d37 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -1,63 +1,18 @@
+QAPI_MODULES = block-core block char common crypto introspect job migration
+QAPI_MODULES += misc net rocker run-state sockets tpm trace transaction ui
+
#######################################################################
# Common libraries for tools and emulators
stub-obj-y = stubs/ crypto/
util-obj-y = util/ qobject/ qapi/
util-obj-y += qapi/qapi-builtin-types.o
util-obj-y += qapi/qapi-types.o
-util-obj-y += qapi/qapi-types-block-core.o
-util-obj-y += qapi/qapi-types-block.o
-util-obj-y += qapi/qapi-types-char.o
-util-obj-y += qapi/qapi-types-common.o
-util-obj-y += qapi/qapi-types-crypto.o
-util-obj-y += qapi/qapi-types-introspect.o
-util-obj-y += qapi/qapi-types-job.o
-util-obj-y += qapi/qapi-types-migration.o
-util-obj-y += qapi/qapi-types-misc.o
-util-obj-y += qapi/qapi-types-net.o
-util-obj-y += qapi/qapi-types-rocker.o
-util-obj-y += qapi/qapi-types-run-state.o
-util-obj-y += qapi/qapi-types-sockets.o
-util-obj-y += qapi/qapi-types-tpm.o
-util-obj-y += qapi/qapi-types-trace.o
-util-obj-y += qapi/qapi-types-transaction.o
-util-obj-y += qapi/qapi-types-ui.o
+util-obj-y += $(QAPI_MODULES:%=qapi/qapi-types-%.o)
util-obj-y += qapi/qapi-builtin-visit.o
util-obj-y += qapi/qapi-visit.o
-util-obj-y += qapi/qapi-visit-block-core.o
-util-obj-y += qapi/qapi-visit-block.o
-util-obj-y += qapi/qapi-visit-char.o
-util-obj-y += qapi/qapi-visit-common.o
-util-obj-y += qapi/qapi-visit-crypto.o
-util-obj-y += qapi/qapi-visit-introspect.o
-util-obj-y += qapi/qapi-visit-job.o
-util-obj-y += qapi/qapi-visit-migration.o
-util-obj-y += qapi/qapi-visit-misc.o
-util-obj-y += qapi/qapi-visit-net.o
-util-obj-y += qapi/qapi-visit-rocker.o
-util-obj-y += qapi/qapi-visit-run-state.o
-util-obj-y += qapi/qapi-visit-sockets.o
-util-obj-y += qapi/qapi-visit-tpm.o
-util-obj-y += qapi/qapi-visit-trace.o
-util-obj-y += qapi/qapi-visit-transaction.o
-util-obj-y += qapi/qapi-visit-ui.o
+util-obj-y += $(QAPI_MODULES:%=qapi/qapi-visit-%.o)
util-obj-y += qapi/qapi-events.o
-util-obj-y += qapi/qapi-events-block-core.o
-util-obj-y += qapi/qapi-events-block.o
-util-obj-y += qapi/qapi-events-char.o
-util-obj-y += qapi/qapi-events-common.o
-util-obj-y += qapi/qapi-events-crypto.o
-util-obj-y += qapi/qapi-events-introspect.o
-util-obj-y += qapi/qapi-events-job.o
-util-obj-y += qapi/qapi-events-migration.o
-util-obj-y += qapi/qapi-events-misc.o
-util-obj-y += qapi/qapi-events-net.o
-util-obj-y += qapi/qapi-events-rocker.o
-util-obj-y += qapi/qapi-events-run-state.o
-util-obj-y += qapi/qapi-events-sockets.o
-util-obj-y += qapi/qapi-events-tpm.o
-util-obj-y += qapi/qapi-events-trace.o
-util-obj-y += qapi/qapi-events-transaction.o
-util-obj-y += qapi/qapi-events-ui.o
+util-obj-y += $(QAPI_MODULES:%=qapi/qapi-events-%.o)
util-obj-y += qapi/qapi-introspect.o
chardev-obj-y = chardev/
@@ -138,23 +93,7 @@ common-obj-$(CONFIG_FDT) += device_tree.o
# qapi
common-obj-y += qapi/qapi-commands.o
-common-obj-y += qapi/qapi-commands-block-core.o
-common-obj-y += qapi/qapi-commands-block.o
-common-obj-y += qapi/qapi-commands-char.o
-common-obj-y += qapi/qapi-commands-common.o
-common-obj-y += qapi/qapi-commands-crypto.o
-common-obj-y += qapi/qapi-commands-introspect.o
-common-obj-y += qapi/qapi-commands-job.o
-common-obj-y += qapi/qapi-commands-migration.o
-common-obj-y += qapi/qapi-commands-misc.o
-common-obj-y += qapi/qapi-commands-net.o
-common-obj-y += qapi/qapi-commands-rocker.o
-common-obj-y += qapi/qapi-commands-run-state.o
-common-obj-y += qapi/qapi-commands-sockets.o
-common-obj-y += qapi/qapi-commands-tpm.o
-common-obj-y += qapi/qapi-commands-trace.o
-common-obj-y += qapi/qapi-commands-transaction.o
-common-obj-y += qapi/qapi-commands-ui.o
+common-obj-y += $(QAPI_MODULES:%=qapi/qapi-commands-%.o)
common-obj-y += qapi/qapi-introspect.o
common-obj-y += qmp.o hmp.o
endif
--
2.17.2
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] [PATCH v2] qapi: Reduce Makefile boilerplate
2018-11-15 22:50 [Qemu-devel] [PATCH v2] qapi: Reduce Makefile boilerplate Eric Blake
@ 2018-11-15 22:59 ` Paolo Bonzini
2018-11-16 10:17 ` Markus Armbruster
2018-11-16 10:26 ` Daniel P. Berrangé
2 siblings, 0 replies; 5+ messages in thread
From: Paolo Bonzini @ 2018-11-15 22:59 UTC (permalink / raw)
To: Eric Blake, qemu-devel; +Cc: armbru, xiezhide, qemu-trivial
On 15/11/2018 23:50, Eric Blake wrote:
> Adding a new qapi module requires some rather tedious repetition to
> wire it into Makefile and Makefile.objs. Add some indirection by
> taking advantage of GNU Make string processing to expand a list
> of module names into all the required artifacts, so that future
> additions of a new module need only touch the list of module names.
>
> The list has to live in Makefile.objs, due to the way that
> unnest-vars slirps in that file without remembering any definition
> of $(QAPI_MODULES) from Makefile.
I don't see offhand why that would happen; Makefile.objs is simply
included from Makefile. Anyway, if this works it's okay as well.
Feel free to send me the non-working patch offlist.
Paolo
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] [PATCH v2] qapi: Reduce Makefile boilerplate
2018-11-15 22:50 [Qemu-devel] [PATCH v2] qapi: Reduce Makefile boilerplate Eric Blake
2018-11-15 22:59 ` Paolo Bonzini
@ 2018-11-16 10:17 ` Markus Armbruster
2018-11-16 10:26 ` Daniel P. Berrangé
2 siblings, 0 replies; 5+ messages in thread
From: Markus Armbruster @ 2018-11-16 10:17 UTC (permalink / raw)
To: Eric Blake; +Cc: qemu-devel, qemu-trivial, pbonzini, xiezhide
Eric Blake <eblake@redhat.com> writes:
> Adding a new qapi module requires some rather tedious repetition to
> wire it into Makefile and Makefile.objs. Add some indirection by
> taking advantage of GNU Make string processing to expand a list
> of module names into all the required artifacts, so that future
> additions of a new module need only touch the list of module names.
>
> The list has to live in Makefile.objs, due to the way that
> unnest-vars slirps in that file without remembering any definition
> of $(QAPI_MODULES) from Makefile.
>
> Signed-off-by: Eric Blake <eblake@redhat.com>
>
> ---
> v2: also condense Makefile.objs, prefer $(FOO:%=a%b) over
> %(patsubst %,a%b,$(foo))
> ---
> Makefile | 192 ++++++--------------------------------------------
> Makefile.objs | 75 ++------------------
> 2 files changed, 30 insertions(+), 237 deletions(-)
Lovely diffstat.
Reviewed-by: Markus Armbruster <armbru@redhat.com>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] [PATCH v2] qapi: Reduce Makefile boilerplate
2018-11-15 22:50 [Qemu-devel] [PATCH v2] qapi: Reduce Makefile boilerplate Eric Blake
2018-11-15 22:59 ` Paolo Bonzini
2018-11-16 10:17 ` Markus Armbruster
@ 2018-11-16 10:26 ` Daniel P. Berrangé
2018-11-16 15:06 ` Eric Blake
2 siblings, 1 reply; 5+ messages in thread
From: Daniel P. Berrangé @ 2018-11-16 10:26 UTC (permalink / raw)
To: Eric Blake; +Cc: qemu-devel, qemu-trivial, pbonzini, armbru, xiezhide
On Thu, Nov 15, 2018 at 04:50:52PM -0600, Eric Blake wrote:
> Adding a new qapi module requires some rather tedious repetition to
> wire it into Makefile and Makefile.objs. Add some indirection by
> taking advantage of GNU Make string processing to expand a list
> of module names into all the required artifacts, so that future
> additions of a new module need only touch the list of module names.
>
> The list has to live in Makefile.objs, due to the way that
> unnest-vars slirps in that file without remembering any definition
> of $(QAPI_MODULES) from Makefile.
>
> Signed-off-by: Eric Blake <eblake@redhat.com>
>
> ---
> v2: also condense Makefile.objs, prefer $(FOO:%=a%b) over
> %(patsubst %,a%b,$(foo))
> ---
> Makefile | 192 ++++++--------------------------------------------
> Makefile.objs | 75 ++------------------
> 2 files changed, 30 insertions(+), 237 deletions(-)
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Though I'd also suggest .gitignore is updated to use wildcards
to exclude the generated files.
Regards,
Daniel
--
|: https://berrange.com -o- https://www.flickr.com/photos/dberrange :|
|: https://libvirt.org -o- https://fstop138.berrange.com :|
|: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] [PATCH v2] qapi: Reduce Makefile boilerplate
2018-11-16 10:26 ` Daniel P. Berrangé
@ 2018-11-16 15:06 ` Eric Blake
0 siblings, 0 replies; 5+ messages in thread
From: Eric Blake @ 2018-11-16 15:06 UTC (permalink / raw)
To: Daniel P. Berrangé
Cc: qemu-devel, qemu-trivial, pbonzini, armbru, xiezhide
On 11/16/18 4:26 AM, Daniel P. Berrangé wrote:
>> Makefile | 192 ++++++--------------------------------------------
>> Makefile.objs | 75 ++------------------
>> 2 files changed, 30 insertions(+), 237 deletions(-)
>
> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
>
> Though I'd also suggest .gitignore is updated to use wildcards
> to exclude the generated files.
Oh, good idea. v3 coming up
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 5+ messages in thread
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2018-11-15 22:50 [Qemu-devel] [PATCH v2] qapi: Reduce Makefile boilerplate Eric Blake
2018-11-15 22:59 ` Paolo Bonzini
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2018-11-16 10:26 ` Daniel P. Berrangé
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