Dear OE hackers,
Am Dienstag, den 12.01.2010, 11:40 +0100 schrieb Paul Menzel: > sorry for bothering you with this. I am trying to reproduce the errors > Henning has seen with g++ 4.4.2 [1] and therefore added the following > lines to my `local.conf` for Ångström with BeagleBoard [2]. > > Am Montag, den 11.01.2010, 23:42 +0100 schrieb Paul Menzel: > > […] > > > Putting > > > > PREFERRED_VERSION_binutils = "2.20" > > PREFERRED_VERSION_binutils-cross = "2.20" > > PREFERRED_VERSION_binutils-cross-sdk = "2.20" > > > > PREFERRED_VERSION_gcc = "4.4.2" > > PREFERRED_VERSION_gcc-cross = "4.4.2" > > PREFERRED_VERSION_gcc-cross-sdk = "4.4.2" > > PREFERRED_VERSION_gcc-cross-initial = "4.4.2" > > PREFERRED_VERSION_gcc-cross-intermediate = "4.4.2" > > > > in my `local.conf` and running `bitbake vdr` gave me an error in > > `do_compile` for `libcap_1.10.bb`. > > > > arm-angstrom-linux-gnueabi-ld -soname libcap.so.1 -x -shared > -o libcap.so.1.10 cap_alloc.o cap_proc.o cap_extint.o cap_flag.o > cap_text.o cap_sys.o > > arm-angstrom-linux-gnueabi-ld: cap_text.o: relocation > R_ARM_MOVW_ABS_NC against `a local symbol' can not be used when making > a shared object; recompile with -fPIC > > I do not get these errors if I use the standard versions defined for > Ångström which is 4.1.1. Adding `-fPIC` to the flags as suggested in > [3] > solves the problem for me. > > Does anyone know if GCC’s behavior was changed somehow? according to Khem Raj this has to do with binutils/ld [2]. Please find the patch inlined and attached. Thanks, Paul --- From c119072b0f13b674d705d3bc50150a252bf7c5d2 Mon Sep 17 00:00:00 2001 From: Paul Menzel <[email protected]> Date: Sat, 16 Jan 2010 14:41:03 +0100 Subject: [PATCH] libcap: Append `-fPIC` to `CFLAGS` to fix compilation on newer binutils/ld. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Doing `bitbake libcap` with PREFERRED_VERSION_binutils = "2.20" PREFERRED_VERSION_binutils-cross = "2.20" PREFERRED_VERSION_binutils-cross-sdk = "2.20" PREFERRED_VERSION_gcc = "4.4.2" PREFERRED_VERSION_gcc-cross = "4.4.2" PREFERRED_VERSION_gcc-cross-sdk = "4.4.2" PREFERRED_VERSION_gcc-cross-initial = "4.4.2" PREFERRED_VERSION_gcc-cross-intermediate = "4.4.2" in `local.conf` made `do_compile` error out with the following message [1]. arm-angstrom-linux-gnueabi-ld -soname libcap.so.1 -x -shared -o libcap.so.1.10 cap_alloc.o cap_proc.o cap_extint.o cap_flag.o cap_text.o cap_sys.o arm-angstrom-linux-gnueabi-ld: cap_text.o: relocation R_ARM_MOVW_ABS_NC against `a local symbol' can not be used when making a shared object; recompile with -fPIC Khem Raj explained it the following way [2]. Am Mittwoch, den 13.01.2010, 02:27 -0800 schrieb Khem Raj: > > I also get the same error which I did not get before with GCC 4.1.1. > > Older versions of binutils/ld can not detect MOVT/MOVW relocations which > are absolute and cant be used in PIC code. > hence even if the error was there it remained latent. Therefore just append `-fPIC` to the CFLAGS and bump the PR variable. The strange thing is still, that other distributions seem to have patched libcap to build with `-fPIC` long ago [3–5]. [1] http://lists.linuxtogo.org/pipermail/openembedded-devel/2010-January/016142.html [2] http://lists.linuxtogo.org/pipermail/openembedded-devel/2010-January/016211.html [3] http://www.linuxfromscratch.org/patches/downloads/libcap/libcap-1.10-fedora_fixes-1.patch [4] http://frugalware.org/pipermail/frugalware-darcs/2005-May/000824.html [5] http://cvs.fedoraproject.org/viewvc/rpms/libcap/F-7/libcap-1.10-fPIC.patch?revision=1.1&view=markup Signed-off-by: Paul Menzel <[email protected]> --- recipes/libcap/libcap_1.10.bb | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/recipes/libcap/libcap_1.10.bb b/recipes/libcap/libcap_1.10.bb index 172acac..241529e 100644 --- a/recipes/libcap/libcap_1.10.bb +++ b/recipes/libcap/libcap_1.10.bb @@ -3,9 +3,9 @@ PRIORITY = "optional" SECTION = "libs" LICENSE = "GPL" DEPENDS = "bison-native flex-native" -PR = "r1" +PR = "r2" -CFLAGS_append = " -I${S}/libcap/include" +CFLAGS_append = " -I${S}/libcap/include -fPIC" SRC_URI = "${KERNELORG_MIRROR}/pub/linux/libs/security/linux-privs/kernel-2.4/${PN}-${PV}.tar.bz2 \ file://makenames.patch;patch=1 \ -- 1.6.6
From c119072b0f13b674d705d3bc50150a252bf7c5d2 Mon Sep 17 00:00:00 2001 From: Paul Menzel <[email protected]> Date: Sat, 16 Jan 2010 14:41:03 +0100 Subject: [PATCH] libcap: Append `-fPIC` to `CFLAGS` to fix compilation on newer binutils/ld. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Doing `bitbake libcap` with PREFERRED_VERSION_binutils = "2.20" PREFERRED_VERSION_binutils-cross = "2.20" PREFERRED_VERSION_binutils-cross-sdk = "2.20" PREFERRED_VERSION_gcc = "4.4.2" PREFERRED_VERSION_gcc-cross = "4.4.2" PREFERRED_VERSION_gcc-cross-sdk = "4.4.2" PREFERRED_VERSION_gcc-cross-initial = "4.4.2" PREFERRED_VERSION_gcc-cross-intermediate = "4.4.2" in `local.conf` made `do_compile` error out with the following message [1]. arm-angstrom-linux-gnueabi-ld -soname libcap.so.1 -x -shared -o libcap.so.1.10 cap_alloc.o cap_proc.o cap_extint.o cap_flag.o cap_text.o cap_sys.o arm-angstrom-linux-gnueabi-ld: cap_text.o: relocation R_ARM_MOVW_ABS_NC against `a local symbol' can not be used when making a shared object; recompile with -fPIC Khem Raj explained it the following way [2]. Am Mittwoch, den 13.01.2010, 02:27 -0800 schrieb Khem Raj: > > I also get the same error which I did not get before with GCC 4.1.1. > > Older versions of binutils/ld can not detect MOVT/MOVW relocations which > are absolute and cant be used in PIC code. > hence even if the error was there it remained latent. Therefore just append `-fPIC` to the CFLAGS and bump the PR variable. The strange thing is still, that other distributions seem to have patched libcap to build with `-fPIC` long ago [3–5]. [1] http://lists.linuxtogo.org/pipermail/openembedded-devel/2010-January/016142.html [2] http://lists.linuxtogo.org/pipermail/openembedded-devel/2010-January/016211.html [3] http://www.linuxfromscratch.org/patches/downloads/libcap/libcap-1.10-fedora_fixes-1.patch [4] http://frugalware.org/pipermail/frugalware-darcs/2005-May/000824.html [5] http://cvs.fedoraproject.org/viewvc/rpms/libcap/F-7/libcap-1.10-fPIC.patch?revision=1.1&view=markup Signed-off-by: Paul Menzel <[email protected]> --- recipes/libcap/libcap_1.10.bb | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/recipes/libcap/libcap_1.10.bb b/recipes/libcap/libcap_1.10.bb index 172acac..241529e 100644 --- a/recipes/libcap/libcap_1.10.bb +++ b/recipes/libcap/libcap_1.10.bb @@ -3,9 +3,9 @@ PRIORITY = "optional" SECTION = "libs" LICENSE = "GPL" DEPENDS = "bison-native flex-native" -PR = "r1" +PR = "r2" -CFLAGS_append = " -I${S}/libcap/include" +CFLAGS_append = " -I${S}/libcap/include -fPIC" SRC_URI = "${KERNELORG_MIRROR}/pub/linux/libs/security/linux-privs/kernel-2.4/${PN}-${PV}.tar.bz2 \ file://makenames.patch;patch=1 \ -- 1.6.6
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