This seems more like a patch for riscv-gnu-toolchain rather than GCC?
panciyan <[email protected]> 於 2026年8月19日週三 下午1:48寫道： > > Building glibc with -march=rv64gcv causes GCC to auto-vectorize generic > C code (e.g. calc_state_hash in regex), generating RVV instructions. On > hardware without the V extension, this results in SIGILL. > > Signed-off-by: Ciyan Pan <[email protected]> > ChangeLog: > > * configure: Regenerate. > * configure.ac: Remove rv64gcv-lp64d. > > --- > configure | 5 ----- > configure.ac | 2 +- > 2 files changed, 1 insertion(+), 6 deletions(-) > > diff --git a/configure b/configure > index d610aa16..6328fcee 100755 > --- a/configure > +++ b/configure > @@ -4159,11 +4159,6 @@ fi > if test "x$enable_multilib" = xyes > then : > glibc_multilib_names="rv32imac-ilp32 rv32gc-ilp32d rv64imac-lp64 > rv64gc-lp64d" > - # Vector extension is currently not supported on Big-endian systems. > - if test "x$endian" = xlittle > - then : > - glibc_multilib_names+=" rv64gcv-lp64d" > - fi > > else $as_nop > glibc_multilib_names="$with_arch-$with_abi" > diff --git a/configure.ac b/configure.ac > index 4e534faa..dd32ec6c 100644 > --- a/configure.ac > +++ b/configure.ac > @@ -158,7 +158,7 @@ AS_IF([test "x$enable_multilib" = xyes || test > "x$with_multilib_generator" != xn > [AC_SUBST(multilib_flags,--disable-multilib)]) > > AS_IF([test "x$enable_multilib" = xyes], > - [AC_SUBST(glibc_multilib_names,"rv32imac-ilp32 rv32gc-ilp32d > rv64imac-lp64 rv64gc-lp64d rv64gcv-lp64d")], > + [AC_SUBST(glibc_multilib_names,"rv32imac-ilp32 rv32gc-ilp32d > rv64imac-lp64 rv64gc-lp64d")], > [AC_SUBST(glibc_multilib_names,"$with_arch-$with_abi")]) > > AS_IF([test "x$enable_multilib" = xyes], > -- > 2.43.0 >
