Re: [Qemu-devel] [PATCH] build: Fix linking failure for qemu-ga

[Blue Swirl]

Thanks, applied.

On Sat, Jul 28, 2012 at 7:11 PM,  <address@hidden> wrote:
> From: Dunrong Huang <address@hidden>
>
> This patch will fix the following linking failed:
>
>   LINK  qemu-ga
> gcc: error: qga/../qapi-generated/qga-qapi-types.o: No such file or directory
> gcc: error: qga/../qapi-generated/qga-qapi-visit.o: No such file or directory
> gcc: error: qga/../qapi-generated/qga-qmp-marshal.o: No such file or directory
> make: *** [qemu-ga] Error 1
>
> Commit cdc976b040f2760103ce2fb49f4d504093a7163f changes the
> dependencies of qemu-ga to depend "../qapi-generated/qga-qapi-types.o",
> which will be expanded to "qga/../qapi-generated/qga-qapi-types.o" when
> building qemu-ga.
>
> In top-level Makefile, we defined a target "qapi-generated/qga-qapi-types.o"
> which was not equal to "qga/../qapi-generated/qga-qapi-types" in the
> Makefile world. So "No such file" error happened when qemu-ga was linking.
>
> The easy approach to fix is to change the target name to
> "qga/../qapi-generated/qga-qapi-types.o", but it is weird.
>
> So, in order to solve it more graciously, I move those temporary
> files(qga-qapi-*.{c,h}) qemu-ga depends on to qemu-ga/qapi-generated,
> this makes dependencies more clearer.
>
> Signed-off-by: Dunrong Huang <address@hidden>
> ---
>  Makefile          |   19 +++++++++----------
>  qga/Makefile.objs |    4 ++--
>  2 files changed, 11 insertions(+), 12 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index a1195ff..621cb86 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -173,7 +173,7 @@ qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx
>         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"  
> GEN   $@")
>
>  qemu-ga$(EXESUF): LIBS = $(LIBS_QGA)
> -qemu-ga$(EXESUF): QEMU_CFLAGS += -I qapi-generated
> +qemu-ga$(EXESUF): QEMU_CFLAGS += -I qga/qapi-generated
>
>  gen-out-type = $(subst .,-,$(suffix $@))
>
> @@ -181,15 +181,15 @@ ifneq ($(wildcard config-host.mak),)
>  include $(SRC_PATH)/tests/Makefile
>  endif
>
> -qapi-generated/qga-qapi-types.c qapi-generated/qga-qapi-types.h :\
> +qga/qapi-generated/qga-qapi-types.c qga/qapi-generated/qga-qapi-types.h :\
>  $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-types.py
> -       $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py 
> $(gen-out-type) -o qapi-generated -p "qga-" < $<, "  GEN   $@")
> -qapi-generated/qga-qapi-visit.c qapi-generated/qga-qapi-visit.h :\
> +       $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py 
> $(gen-out-type) -o qga/qapi-generated -p "qga-" < $<, "  GEN   $@")
> +qga/qapi-generated/qga-qapi-visit.c qga/qapi-generated/qga-qapi-visit.h :\
>  $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-visit.py
> -       $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py 
> $(gen-out-type) -o qapi-generated -p "qga-" < $<, "  GEN   $@")
> -qapi-generated/qga-qmp-commands.h qapi-generated/qga-qmp-marshal.c :\
> +       $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py 
> $(gen-out-type) -o qga/qapi-generated -p "qga-" < $<, "  GEN   $@")
> +qga/qapi-generated/qga-qmp-commands.h qga/qapi-generated/qga-qmp-marshal.c :\
>  $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-commands.py
> -       $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py 
> $(gen-out-type) -o qapi-generated -p "qga-" < $<, "  GEN   $@")
> +       $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py 
> $(gen-out-type) -o qga/qapi-generated -p "qga-" < $<, "  GEN   $@")
>
>  qapi-types.c qapi-types.h :\
>  $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-types.py
> @@ -201,9 +201,7 @@ qmp-commands.h qmp-marshal.c :\
>  $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py
>         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py 
> $(gen-out-type) -m -o "." < $<, "  GEN   $@")
>
> -QGALIB_OBJ=$(addprefix qapi-generated/, qga-qapi-types.o qga-qapi-visit.o 
> qga-qmp-marshal.o)
> -QGALIB_GEN=$(addprefix qapi-generated/, qga-qapi-types.h qga-qapi-visit.h 
> qga-qmp-commands.h)
> -$(QGALIB_OBJ): $(QGALIB_GEN)
> +QGALIB_GEN=$(addprefix qga/qapi-generated/, qga-qapi-types.h 
> qga-qapi-visit.h qga-qmp-commands.h)
>  $(qga-obj-y) qemu-ga.o: $(QGALIB_GEN)
>
>  qemu-ga$(EXESUF): qemu-ga.o $(qga-obj-y) $(tools-obj-y) $(qapi-obj-y) 
> $(qobject-obj-y) $(version-obj-y)
> @@ -227,6 +225,7 @@ clean:
>         rm -f $(foreach f,$(GENERATED_HEADERS),$(f) $(f)-timestamp)
>         rm -f $(foreach f,$(GENERATED_SOURCES),$(f) $(f)-timestamp)
>         rm -rf qapi-generated
> +       rm -rf qga/qapi-generated
>         $(MAKE) -C tests/tcg clean
>         for d in $(ALL_SUBDIRS) $(QEMULIBS) libcacard; do \
>         if test -d $$d; then $(MAKE) -C $$d $@ || exit 1; fi; \
> diff --git a/qga/Makefile.objs b/qga/Makefile.objs
> index b54b9b1..cd3e135 100644
> --- a/qga/Makefile.objs
> +++ b/qga/Makefile.objs
> @@ -1,5 +1,5 @@
>  qga-obj-y = commands.o guest-agent-command-state.o
>  qga-obj-$(CONFIG_POSIX) += commands-posix.o channel-posix.o
>  qga-obj-$(CONFIG_WIN32) += commands-win32.o channel-win32.o service-win32.o
> -qga-obj-y += ../qapi-generated/qga-qapi-types.o 
> ../qapi-generated/qga-qapi-visit.o
> -qga-obj-y += ../qapi-generated/qga-qmp-marshal.o
> +qga-obj-y += qapi-generated/qga-qapi-types.o qapi-generated/qga-qapi-visit.o
> +qga-obj-y += qapi-generated/qga-qmp-marshal.o
> --
> 1.7.8.6
>
>