On Wed, Aug 09, 2023 at 06:49:30PM +0800, Yu Chien Peter Lin wrote:
This patch adds ISA string to the -march to generate zbb instructions for U-Boot binaries, along with optimized string functions introduced from Linux kernel.
Signed-off-by: Yu Chien Peter Lin peterlin@andestech.com
arch/riscv/Kconfig | 92 +++++++++++++++++++++++++++++ arch/riscv/Makefile | 5 +- arch/riscv/include/asm/string.h | 18 ++++++ arch/riscv/lib/Makefile | 3 + arch/riscv/lib/strcmp_zbb.S | 81 +++++++++++++++++++++++++ arch/riscv/lib/strlen_zbb.S | 101 ++++++++++++++++++++++++++++++++ arch/riscv/lib/strncmp_zbb.S | 94 +++++++++++++++++++++++++++++ 7 files changed, 393 insertions(+), 1 deletion(-) create mode 100644 arch/riscv/lib/strcmp_zbb.S create mode 100644 arch/riscv/lib/strlen_zbb.S create mode 100644 arch/riscv/lib/strncmp_zbb.S
Reviewed-by: Leo Yu-Chi Liang ycliang@andestech.com