[Buildroot] [autobuild.buildroot.net] Daily results for 2019-09-17

Arnout Vandecappelle arnout at mind.be
Sat Sep 21 11:26:00 UTC 2019



On 18/09/2019 22:56, Peter Seiderer wrote:
> Hello,
> 
> On Wed, 18 Sep 2019 06:16:20 -0000, Thomas Petazzoni <thomas.petazzoni at bootlin.com> wrote:
> 
> [...]
>>
>> Results for branch 'master'
>> ===========================
> [...]
> 
>>    x86_64    |           ffmpeg-4.2           | NOK | http://autobuild.buildroot.net/results/061fd3cd6e29c86f49ebfe47b4abb7497ee17fa5 |     
> 
> The ffmpeg configure step fails with:
> 
>  ERROR: gnutls not found using pkg-config
> 
> From build/ffmpeg-4.2/ffbuild/config.log:
> 
>  .../host/bin/../x86_64-buildroot-linux-gnu/sysroot/usr/lib/libgnutls.so: undefined reference to `__get_cpuid_count'
> 
> From build/gnutls-3.6.9/lib/accelerated/x86/x86-common.c:
> 
>  41 #ifdef HAVE_CPUID_H
>  42 # include <cpuid.h>
>  43 #else
>  44 # define __get_cpuid(...) 0
>  45 # define __get_cpuid_count(...) 0
>  46 #endif
> 
> The given toolchain cpuid.h file is missing the get_cpuid_count definition (for
> an cpuid.h file with it see e.g. [1])...
> 
> The gnutls search for cpuid.h can be disabled by the
> '--disable-hardware-acceleration' configure option, so the build could
> be fixed by the following patch:
> 
> --- a/package/gnutls/gnutls.mk
> +++ b/package/gnutls/gnutls.mk
> @@ -27,7 +27,8 @@ GNUTLS_CONF_OPTS = \
>         --with-librt-prefix=$(STAGING_DIR) \
>         --without-tpm \
>         $(if $(BR2_PACKAGE_GNUTLS_OPENSSL),--enable,--disable)-openssl-compatibility \
> -       $(if $(BR2_PACKAGE_GNUTLS_TOOLS),--enable-tools,--disable-tools)
> +       $(if $(BR2_PACKAGE_GNUTLS_TOOLS),--enable-tools,--disable-tools) \
> +       --disable-hardware-acceleration
>  GNUTLS_CONF_ENV = gl_cv_socket_ipv6=yes \
>         ac_cv_header_wchar_h=$(if $(BR2_USE_WCHAR),yes,no) \
>         gt_cv_c_wchar_t=$(if $(BR2_USE_WCHAR),yes,no) \
> 
> 
> Unconditionally disabling hardware acceleration seems to be overkill, but
> did not spot the right condition (yet)...
> 
> Or alternatively patch configure to check not only for cpuid.h header,
> but although check for __get_cpuid/__get_cpuid_count presence...

 Fixed by http://patchwork.ozlabs.org/patch/1157883/ I guess?

 Regards,
 Arnout

> 
> Regards,
> Peter
> 
> [1] https://github.com/gcc-mirror/gcc/blob/master/gcc/config/i386/cpuid.h
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