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


From: Fam Zheng
Subject: Re: [Qemu-devel] [PATCH v6 5/8] configure: introduce --enable-modules
Date: Thu, 12 Sep 2013 10:06:25 +0800
User-agent: Mutt/1.5.21 (2010-09-15)

On Wed, 09/11 15:46, Paolo Bonzini wrote:
> 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.
> 
OK, will do it.

> >  # 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))) \
Missing comma here:                                               ^

Objects won't be static linked without --enable-modules.

Fam

> > +    $(foreach v,$(filter %-m,$(nested-vars)), \
> > +        $(eval $(patsubst %-m,%-y,$v) += $($v)) \
> > +        $(eval $v := )))
> >  
> >  endef
> > 
> 



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