On Wed, Aug 10, 2022 at 08:31:38PM -0700, Palmer Dabbelt wrote:
> This was recently added to binutils and with any luck will soon be in
> Linux, without it sparse will fail when trying to build new kernels on
> systems with new toolchains.
>
In passing while testing the zihintpause one:
Tested-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
> Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>
> ---
> target-riscv.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/target-riscv.c b/target-riscv.c
> index 217ab7e8..db0f7e57 100644
> --- a/target-riscv.c
> +++ b/target-riscv.c
> @@ -19,6 +19,7 @@
> #define RISCV_GENERIC (RISCV_MUL|RISCV_DIV|RISCV_ATOMIC|RISCV_FPU)
> #define RISCV_ZICSR (1 << 10)
> #define RISCV_ZIFENCEI (1 << 11)
> +#define RISCV_ZICBOM (1 << 12)
>
> static unsigned int riscv_flags;
>
> @@ -41,6 +42,7 @@ static void parse_march_riscv(const char *arg)
> { "c", RISCV_COMP },
> { "_zicsr", RISCV_ZICSR },
> { "_zifencei", RISCV_ZIFENCEI },
> + { "_zicbom", RISCV_ZICBOM },
> };
> int i;
>
> @@ -131,6 +133,8 @@ static void predefine_riscv(const struct target *self)
> predefine("__riscv_zicsr", 1, "1");
> if (riscv_flags & RISCV_ZIFENCEI)
> predefine("__riscv_zifencei", 1, "1");
> + if (riscv_flags & RISCV_ZICBOM)
> + predefine("__riscv_zicbom", 1, "1");
>
> if (cmodel)
> predefine_strong("__riscv_cmodel_%s", cmodel);
> --
> 2.34.1
>
