Feng Jiang bef64bcb94 riscv: lib: add strrchr() implementation ... Add an assembly implementation of strrchr() for RISC-V. This implementation minimizes instruction count and avoids unnecessary memory access to the stack. The performance benefits are most visible on small workloads (1-16 bytes) where the architectural savings in function overhead outweigh the execution time of the scan loop. Benchmark results (QEMU TCG, rv64): Length | Original (MB/s) | Optimized (MB/s) | Improvement -------|-----------------|------------------|------------ 1 B | 20 | 21 | +5.0% 7 B | 111 | 120 | +8.1% 16 B | 189 | 199 | +5.3% 512 B | 361 | 382 | +5.8% 4096 B | 388 | 391 | +0.8% Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn> Tested-by: Joel Stanley <joel@jms.id.au> Link: https://patch.msgid.link/20260130025018.172925-9-jiangfeng@kylinos.cn Signed-off-by: Paul Walmsley <pjw@kernel.org>		2026-04-04 18:42:44 -06:00
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.gitignore	riscv/purgatory: Omit use of bin2c	2022-08-11 09:32:34 -07:00
entry.S	riscv/purgatory: 4B align purgatory_start	2025-04-01 07:07:12 +00:00
kexec-purgatory.S	riscv: Fix typo in purgatory end label	2026-04-04 18:42:42 -06:00
Makefile	riscv: lib: add strrchr() implementation	2026-04-04 18:42:44 -06:00
purgatory.c	lib/crypto: sha256: Make library API use strongly-typed contexts	2025-07-04 10:18:53 -07:00