On Fri, Aug 12, 2022 at 09:25:23AM +0100, Conor Dooley wrote: > 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> Hey Luc, Would you be able to take a look at this patch and at https://lore.kernel.org/linux-sparse/YvYQSdQBuZGSit2s@wendy/T/#t please? They're causing sparse to fail for recent kernels when the extensions are used. Thanks, Conor. > > > 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 > > >
