[OE-core] [poky] [PATCH 1/1] gcc-runtime: fix LSB library checks for libstdc++.so.6

[Kamble, Nitin A]

> -----Original Message-----
> From: Khem Raj [mailto:raj.khem at gmail.com]
> Sent: Monday, March 07, 2011 9:14 AM
> To: Kamble, Nitin A
> Cc: poky at yoctoproject.org; openembedded-core at lists.openembedded.org
> Subject: Re: [poky] [PATCH 1/1] gcc-runtime: fix LSB library checks for
> libstdc++.so.6
> 
> On Mon, Mar 7, 2011 at 8:55 AM, Nitin A Kamble
> <nitin.a.kamble at intel.com> wrote:
> > From: Nitin A Kamble <nitin.a.kamble at intel.com>
> >
> > [YOCTO #795]
> >
> > When we run library check of LSB on qemux86 and qemuppc, we got some
> failures
> > about 'libstdc++.so.6'.
> >
> > Test environment:
> > Platform: Qemu-x86, Qemu-ppc
> > lsb image: poky-image-lsb-qemux86-test.ext3(Feb 26th, auto-build
> server)
> > Library check of LSB: 4.1.0-1
> >
> > The error log:
> > Did not find _ZNKSt5ctypeIcE8do_widenEPKcS2_Pc (GLIBCXX_3.4) in
> libstdc++.so.6
> > Unmangled symbol name: std::ctype<char>::do_widen(char const*, char
> const*,
> > char*) const
> > ...
> >
> >  found that some weak symbols ('W') change into local ('t') during
> link time
> > and be stripped. According to compiling log, the option
> > "-fvisibility-inlines-hidden" is used for gcc. And this option caused
> some weak
> > symbols change into local.
> >
> 
> 
> you could use oe_filter_out functionality to strip out a given option
> and you wont need to touch so many parts. Just do something like
> 
> CXXFLAGS = "${@oe_filter_out('-fvisibility-inlines-hidden',
> '${CXXFLAGS}', d)}" in gcc runtime recipe and you should be set
> 
> Thanks
> 
> -Khem
Good to know another trick. Thanks Khem.
Nitin


> 
> > see http://bugzilla.pokylinux.org/show_bug.cgi?id=795 for more
> information on the bug.
> >
> > Signed-off-by: Nitin A Kamble <nitin.a.kamble at intel.com>
> > Signed-off-by: Jingdong Lu <jingdong.lu at windriver.com>
> > ---
> >  meta/conf/bitbake.conf                             |    2 +-
> >  meta/conf/distro/include/poky-eglibc.inc           |    2 +-
> >  meta/conf/distro/include/poky-glibc.inc            |    2 +-
> >  meta/conf/distro/include/poky-uclibc.inc           |    2 +-
> >  .../recipes-devtools/gcc/gcc-configure-runtime.inc |    1 +
> >  meta/recipes-devtools/gcc/gcc-runtime_4.5.1.bb     |    2 +-
> >  6 files changed, 6 insertions(+), 5 deletions(-)
> >
> > diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
> > index cf99a81..473306a 100644
> > --- a/meta/conf/bitbake.conf
> > +++ b/meta/conf/bitbake.conf
> > @@ -463,7 +463,7 @@ export CFLAGS = "${TARGET_CFLAGS}"
> >  export TARGET_CFLAGS = "${TARGET_CPPFLAGS} ${SELECTED_OPTIMIZATION}"
> >
> >  export BUILD_CXXFLAGS = "${BUILD_CFLAGS} -fpermissive"
> > -export CXXFLAGS = "${TARGET_CXXFLAGS}"
> > +export CXXFLAGS = "${TARGET_CXXFLAGS} ${CXXFLAGS_EXTRA}"
> >  export TARGET_CXXFLAGS = "${TARGET_CFLAGS} -fpermissive"
> >
> >  export BUILD_LDFLAGS = "-L${STAGING_LIBDIR_NATIVE} \
> > diff --git a/meta/conf/distro/include/poky-eglibc.inc
> b/meta/conf/distro/include/poky-eglibc.inc
> > index 3d2c362..44a0146 100644
> > --- a/meta/conf/distro/include/poky-eglibc.inc
> > +++ b/meta/conf/distro/include/poky-eglibc.inc
> > @@ -19,7 +19,7 @@ PREFERRED_PROVIDER_virtual/${SDK_PREFIX}libc-
> initial-nativesdk ?= "eglibc-initia
> >
> >  TARGET_OS = "${GLIBCTARGETOS}"
> >
> > -CXXFLAGS += "-fvisibility-inlines-hidden"
> > +CXXFLAGS_EXTRA += "-fvisibility-inlines-hidden"
> >
> >  LIBC_DEPENDENCIES = "libsegfault \
> >                     eglibc \
> > diff --git a/meta/conf/distro/include/poky-glibc.inc
> b/meta/conf/distro/include/poky-glibc.inc
> > index 4be7122..d3f28c0 100644
> > --- a/meta/conf/distro/include/poky-glibc.inc
> > +++ b/meta/conf/distro/include/poky-glibc.inc
> > @@ -18,7 +18,7 @@ PREFERRED_PROVIDER_virtual/${SDK_PREFIX}libc-
> initial-nativesdk ?= "glibc-initial
> >
> >  TARGET_OS = "${GLIBCTARGETOS}"
> >
> > -CXXFLAGS += "-fvisibility-inlines-hidden"
> > +CXXFLAGS_EXTRA += "-fvisibility-inlines-hidden"
> >
> >  LIBC_DEPENDENCIES = "\
> >     libsegfault \
> > diff --git a/meta/conf/distro/include/poky-uclibc.inc
> b/meta/conf/distro/include/poky-uclibc.inc
> > index def9dfe..13c17f9 100644
> > --- a/meta/conf/distro/include/poky-uclibc.inc
> > +++ b/meta/conf/distro/include/poky-uclibc.inc
> > @@ -15,7 +15,7 @@ USE_NLS_glib-2.0 = "yes"
> >
> >  TARGET_OS = "${UCLIBCTARGETOS}"
> >
> > -CXXFLAGS += "-fvisibility-inlines-hidden"
> > +CXXFLAGS_EXTRA += "-fvisibility-inlines-hidden"
> >
> >  IMAGE_LINGUAS = ""
> >
> > diff --git a/meta/recipes-devtools/gcc/gcc-configure-runtime.inc
> b/meta/recipes-devtools/gcc/gcc-configure-runtime.inc
> > index 6cc11e2..d4dfbc2 100644
> > --- a/meta/recipes-devtools/gcc/gcc-configure-runtime.inc
> > +++ b/meta/recipes-devtools/gcc/gcc-configure-runtime.inc
> > @@ -1,5 +1,6 @@
> >  require gcc-configure-common.inc
> >
> > +CXXFLAGS_EXTA = ""
> >  EXTRA_OECONF_PATHS = " \
> >     --with-local-prefix=${STAGING_DIR_TARGET}${prefix} \
> >     --with-gxx-include-dir=${includedir}/c++/ \
> > diff --git a/meta/recipes-devtools/gcc/gcc-runtime_4.5.1.bb
> b/meta/recipes-devtools/gcc/gcc-runtime_4.5.1.bb
> > index 093f9bf..c1e680d 100644
> > --- a/meta/recipes-devtools/gcc/gcc-runtime_4.5.1.bb
> > +++ b/meta/recipes-devtools/gcc/gcc-runtime_4.5.1.bb
> > @@ -1,4 +1,4 @@
> > -PR = "r2"
> > +PR = "r3"
> >
> >  require gcc-${PV}.inc
> >  require gcc-configure-runtime.inc
> > --
> > 1.7.3.4
> >
> > _______________________________________________
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> > poky at yoctoproject.org
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> >