Am 31.12.2015 5:06 nachm. schrieb Vegard Nossum <vegard.nos...@oracle.com>:
>
> Similarly to commit fb1770aa78a43530940d0c2dd161e77bc705bdac, with gcc 5
> on Ubuntu and CONFIG_STATIC_LINK=y I was seeing these linker errors:
Hi,
Oops, yes this patch looks good to me. Honestly I did never test the static
link case. Sorry.
With kind regards
Thomas
>
> /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/librt.a(timer_create.o):
> In function `__timer_create_new':
> (.text+0xcd): undefined reference to `pthread_once'
> /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/librt.a(timer_create.o):
> In function `__timer_create_new':
> (.text+0x126): undefined reference to `pthread_attr_init'
> /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/librt.a(timer_create.o):
> In function `__timer_create_new':
> (.text+0x168): undefined reference to `pthread_attr_setdetachstate'
> [...]
>
> Obviously we also need -lpthread for librt.a.
>
> Signed-off-by: Vegard Nossum <vegard.nos...@oracle.com>
> ---
> scripts/link-vmlinux.sh | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
> index dacf71a..ba6c34e 100755
> --- a/scripts/link-vmlinux.sh
> +++ b/scripts/link-vmlinux.sh
> @@ -62,7 +62,7 @@ vmlinux_link()
> -Wl,--start-group \
> ${KBUILD_VMLINUX_MAIN} \
> -Wl,--end-group \
> - -lutil -lrt ${1}
> + -lutil -lrt -lpthread ${1}
> rm -f linux
> fi
> }
> --
> 1.9.1
>
>
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