diff options
| author | Andreas Schwab <schwab@suse.de> | 2023-02-01 10:29:45 +0100 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-02-01 20:51:57 -0800 |
| commit | 2f394c0e7d1129a35156e492bc8f445fb20f43ac (patch) | |
| tree | bed4be3f0ba40fa01c47a962226d8ef7f0cf5510 /arch/riscv/Makefile | |
| parent | 87f48c7ccc73afc78630530d9af51f458f58cab8 (diff) | |
riscv: disable generation of unwind tables
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>
Diffstat (limited to 'arch/riscv/Makefile')
| -rw-r--r-- | arch/riscv/Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index faf2c2177094..82153960ac00 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -80,6 +80,9 @@ ifeq ($(CONFIG_PERF_EVENTS),y) KBUILD_CFLAGS += -fno-omit-frame-pointer endif +# Avoid generating .eh_frame sections. +KBUILD_CFLAGS += -fno-asynchronous-unwind-tables -fno-unwind-tables + KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax) KBUILD_AFLAGS_MODULE += $(call as-option,-Wa$(comma)-mno-relax) |