[Buildroot] [PATCH 1/1] cutelyst: link with libatomic when needed
Thomas Petazzoni
thomas.petazzoni at bootlin.com
Tue Aug 28 09:58:58 UTC 2018
Hello,
On Mon, 27 Aug 2018 18:41:02 +0200, Fabrice Fontaine wrote:
> On some architectures, atomic binutils are provided by the libatomic
> library from gcc. Linking with libatomic is therefore necessary,
> otherwise the build fails with:
>
> sparc-buildroot-linux-uclibc/sysroot/lib/libatomic.so.1: error adding symbols: DSO missing from command line
>
> This is often for example the case on sparcv8 32 bit.
>
> Fixes:
> - http://autobuild.buildroot.net/results/9e307ab9c7067b26d7b33a572204394808e25772
>
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
If this package unconditionally needs atomic intrinsics, then it also
needs to depends on BR2_TOOLCHAIN_HAS_ATOMIC. Indeed, libatomic is not
available in gcc < 4.8.
Best regards,
Thomas
--
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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