And which -march -mabi you used will got issue?
On Wed, Apr 19, 2023 at 8:51 AM Palmer Dabbelt <pal...@rivosinc.com> wrote: > > On Tue, 18 Apr 2023 17:47:31 PDT (-0700), Kito Cheng wrote: > > Do you mind shared gcc configure and the option you tried? > > Just riscv-gnu-toolchain with "--enbale-multilib --enable-linux". > > > On Wed, Apr 19, 2023 at 4:01 AM Palmer Dabbelt <pal...@rivosinc.com> wrote: > >> > >> On Tue, 18 Apr 2023 08:44:24 PDT (-0700), gcc-patches@gcc.gnu.org wrote: > >> >> Yep, if I drop the non-canonicial strings via > >> >> > >> >> diff --git a/gcc/config/riscv/multilib-generator > >> >> b/gcc/config/riscv/multilib-generator > >> >> index 58b7198b243..a63a4d69c18 100755 > >> >> --- a/gcc/config/riscv/multilib-generator > >> >> +++ b/gcc/config/riscv/multilib-generator > >> >> @@ -174,7 +174,7 @@ for cmodel in cmodels: > >> >> ext_combs = expand_combination(ext) > >> >> alts = sum([[x] + [x + y for y in ext_combs] for x in [arch] + > >> >> extra], []) > >> >> alts = filter(lambda x: len(x) != 0, alts) > >> >> - alts = alts + list(map(lambda a : arch_canonicalize(a, > >> >> args.misa_spec), alts)) > >> >> + alts = list(map(lambda a : arch_canonicalize(a, > >> >> args.misa_spec), alts)) > >> >> > >> >> # Drop duplicated entry. > >> >> alts = unique(alts) > >> >> > >> >> then I can't link `-march=rv32imafdcv`, I need > >> >> `-march=rv32imacv_zicsr_zve32f_zve32x_zve64x_zvl128b_zvl32b_zvl64b`. > >> >> That's > >> >> kind of a headache for users to type in. > >> > > >> > Yes, that's a headache for users, but arch string canonicalization is > >> > hiddened at the process, > >> > so the user could still just use rv32imafdcv at compile time and > >> > multi-lib config. > >> > > >> > And the driver and multilib-generator (with arch_canonicalize) script > >> > will handle those headache in the background. > >> > >> Sorry, I'm not exactly sure what you're trying to say. I just rebuilt > >> GCC with this patch (and t-linux-multilib regenerated from it), it's not > >> resolving multlibs for the short names.
