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Re: [Qemu-devel] [PATCH v6 5/8] configure: introduce --enable-modules


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH v6 5/8] configure: introduce --enable-modules
Date: Wed, 11 Sep 2013 15:46:38 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8

Il 11/09/2013 15:34, Fam Zheng ha scritto:
> The new option will enable support of shared object build. Otherwise
> objects are static linked to executables.
> 
> Signed-off-by: Fam Zheng <address@hidden>
> ---
>  Makefile.target | 6 +++++-
>  configure       | 8 ++++++++
>  rules.mak       | 6 +++++-
>  3 files changed, 18 insertions(+), 2 deletions(-)
> 
> diff --git a/Makefile.target b/Makefile.target
> index 87906ea..7fb9e4d 100644
> --- a/Makefile.target
> +++ b/Makefile.target
> @@ -152,7 +152,11 @@ obj-y-save := $(obj-y)
>  block-obj-y :=
>  common-obj-y :=
>  include $(SRC_PATH)/Makefile.objs
> -dummy := $(call unnest-vars,..,block-obj-y common-obj-y)
> +dummy := $(call unnest-vars,.., \
> +               block-obj-y \
> +               block-obj-m \
> +               common-obj-y \
> +               common-obj-m)
>  

This would have to be in patch 3; in fact, it probably makes sense to
squash the two together.

Paolo

>  # Now restore obj-y
>  obj-y := $(obj-y-save)
> diff --git a/configure b/configure
> index a80f143..275b1a0 100755
> --- a/configure
> +++ b/configure
> @@ -192,6 +192,7 @@ gcov_tool="gcov"
>  EXESUF=""
>  DSOSUF=".so"
>  LDFLAGS_SHARED="-shared"
> +modules="no"
>  prefix="/usr/local"
>  mandir="\${prefix}/share/man"
>  datadir="\${prefix}/share"
> @@ -651,6 +652,8 @@ for opt do
>    ;;
>    --disable-debug-info)
>    ;;
> +  --enable-modules) modules="yes"
> +  ;;
>    --cpu=*)
>    ;;
>    --target-list=*) target_list="$optarg"
> @@ -1056,6 +1059,7 @@ echo "  --moddir=PATH            install modules in 
> PATH"
>  echo "  --sysconfdir=PATH        install config in PATH$confsuffix"
>  echo "  --localstatedir=PATH     install local state in PATH (set at runtime 
> on win32)"
>  echo "  --with-confsuffix=SUFFIX suffix for QEMU data inside datadir and 
> sysconfdir [$confsuffix]"
> +echo "  --enable-modules         enable modules support"
>  echo "  --enable-debug-tcg       enable TCG debugging"
>  echo "  --disable-debug-tcg      disable TCG debugging (default)"
>  echo "  --enable-debug-info       enable debugging information (default)"
> @@ -3585,6 +3589,7 @@ echo "python            $python"
>  if test "$slirp" = "yes" ; then
>      echo "smbd              $smbd"
>  fi
> +echo "module support    $modules"
>  echo "host CPU          $cpu"
>  echo "host big endian   $bigendian"
>  echo "target list       $target_list"
> @@ -3703,6 +3708,9 @@ echo "libs_softmmu=$libs_softmmu" >> $config_host_mak
>  
>  echo "ARCH=$ARCH" >> $config_host_mak
>  
> +if test "$modules" = "yes"; then
> +  echo "CONFIG_MODULES=y" >> $config_host_mak
> +fi
>  case "$cpu" in
>    arm|i386|x86_64|x32|ppc|aarch64)
>      # The TCG interpreter currently does not support ld/st optimization.
> diff --git a/rules.mak b/rules.mak
> index 9275d91..22492a9 100644
> --- a/rules.mak
> +++ b/rules.mak
> @@ -187,6 +187,10 @@ $(if $1,$(foreach v,$(nested-vars),$(eval \
>  $(foreach v,$(filter %-m,$(nested-vars)), \
>      $(call add-modules,$v))
>  
> -$(eval modules: $(patsubst %.mo,%$(DSOSUF),$(modules-m)))
> +$(if $(CONFIG_MODULES), \
> +    $(eval modules: $(patsubst %.mo,%$(DSOSUF),$(modules-m))) \
> +    $(foreach v,$(filter %-m,$(nested-vars)), \
> +        $(eval $(patsubst %-m,%-y,$v) += $($v)) \
> +        $(eval $v := )))
>  
>  endef
> 




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