On Thu, Apr 22, 2021 at 11:25:45AM -0700, Manoj Gupta wrote:
> LLD 13 and GNU ld 2.37 support -z start-stop-gc which allows garbage
> collection of C identifier name sections despite the __start_/__stop_
> references. Simply set the retain attribute so that GCC 11 (if
> configure-time binutils is 2.36 or newer)/Clang 13 will set the
> SHF_GNU_RETAIN section attribute to prevent garbage collection.
>
> Without the patch, there are linker errors like the following with -z
> start-stop-gc:
> ld.lld: error: undefined symbol: __stop___cmd
> >>> referenced by iw.c:418
> >>> iw.o:(__handle_cmd)
>
> Suggested-by: Fangrui Song <maskray@xxxxxxxxxx>
>
> Signed-off-by: Manoj Gupta <manojgupta@xxxxxxxxxx>
> ---
> iw.h | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
