This patch enables GCOV code coverage measurement on RISC-V.
Lightly tested on QEMU and Hifive Unleashed board, seems to work as
expected.
Signed-off-by: NZong Li <zong.li@sifive.com>
Reviewed-by: NAnup Patel <anup@brainfault.org>
Acked-by: NJonathan Corbet <corbet@lwn.net>
Signed-off-by: NPaul Walmsley <paul.walmsley@sifive.com>