riscv: disable generation of unwind tables
authorAndreas Schwab <schwab@suse.de>
Wed, 1 Feb 2023 09:29:45 +0000 (10:29 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 9 Feb 2023 10:28:20 +0000 (11:28 +0100)
commit4afacf17ff0f6a76b2ba5f5f3908ab18cf6de5e5
tree211cf77a15d83e66edd83290b31017b00d68b4b4
parent3028c3a169a2bbed54a3d73caebb0c3931ec6356
riscv: disable generation of unwind tables

commit 2f394c0e7d1129a35156e492bc8f445fb20f43ac upstream.

GCC 13 will enable -fasynchronous-unwind-tables by default on riscv.  In
the kernel, we don't have any use for unwind tables yet, so disable them.
More importantly, the .eh_frame section brings relocations
(R_RISC_32_PCREL, R_RISCV_SET{6,8,16}, R_RISCV_SUB{6,8,16}) into modules
that we are not prepared to handle.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Link: https://lore.kernel.org/r/mvmzg9xybqu.fsf@suse.de
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/riscv/Makefile