[PATCH v1 1/3] riscv: Add multiarch support for strcpy

[Jeff Law]

On 9/18/25 18:50, Yao Zihong wrote:
> This patch introduces the riscv multiarch/IFUNC support for strcpy on RISC-V
> without changing behavior.
> 
> - Add sysdeps/riscv/multiarch/strcpy-generic.c to re-export the default
>    string/strcpy.c as __strcpy_generic.
> - Add sysdeps/unix/sysv/linux/riscv/multiarch/strcpy.c that provides the
>    IFUNC wrapper and currently resolves to the generic implementation.
> - Register strcpy and strcpy-generic in the multiarch Makefile.
> - List the generic strcpy in ifunc-impl-list.c.
> 
> Signed-off-by: Yao Zihong <zihong.plct@isrc.iscas.ac.cn>
> ---
>   sysdeps/riscv/multiarch/strcpy-generic.c      | 26 ++++++++++
>   .../unix/sysv/linux/riscv/multiarch/Makefile  |  2 +
>   .../linux/riscv/multiarch/ifunc-impl-list.c   |  4 +-
>   .../unix/sysv/linux/riscv/multiarch/strcpy.c  | 52 +++++++++++++++++++
>   4 files changed, 83 insertions(+), 1 deletion(-)
>   create mode 100644 sysdeps/riscv/multiarch/strcpy-generic.c
>   create mode 100644 sysdeps/unix/sysv/linux/riscv/multiarch/strcpy.c
This is functionally equivalent to what I was preparing to submit.  I 
don't know if I'm considered a glibc maintainer/reviewer anymore, but if 
so, this is OK for the trunk by me.  Though I would suggest waiting for 
the entire set to be reviewed as I'll have questions about the vector 
version :-)


jeff