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boards/risc-v/eic7700x: Use the optimized RISC-V string routines.

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Both boards used the C string and memory routines while the
architecture's hand written ones sat unused beside them.  A 64 bit core
with a filesystem, a network stack and a display above it spends a great
deal of its time in these functions, and the assembly moves a register at
a time rather than a byte.

RISCV_STRING_FUNCTION selects the whole set, so one symbol covers memcpy,
memset, memmove and the string routines together.  The generic memset
tuning options go with it, since the C memset they tune is no longer
built.

These routines need the alignment fixes in apache/nuttx#19856 and
apache/nuttx#19857 to be correct on misaligned pointers.

Assisted-by: Claude:claude-opus-5
Signed-off-by: Justin Hammond <justin@dynam.ac>
This commit is contained in:
Justin Hammond 2026-08-16 18:03:11 +08:00 • committed by Xiang Xiao
parent aa8ce27d35
commit cbff2682f9
2 changed files with 2 additions and 4 deletions
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3
boards/risc-v/eic7700x/eic7700-evb/configs/nsh/defconfig
View file

@ -78,8 +78,6 @@ CONFIG_INTELHEX_BINARY=y
CONFIG_IRQ_WORK_STACKSIZE=2048
CONFIG_LIBC_ENVPATH=y
CONFIG_LIBC_EXECFUNCS=y
CONFIG_LIBC_MEMSET_64BIT=y
CONFIG_LIBC_MEMSET_OPTSPEED=y
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_MM_PGALLOC=y
@ -96,6 +94,7 @@ CONFIG_RAM_SIZE=1006632960
CONFIG_RAM_START=0x80200000
CONFIG_RAW_BINARY=y
CONFIG_READLINE_CMD_HISTORY=y
CONFIG_RISCV_STRING_FUNCTION=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_BACKTRACE=y
CONFIG_SCHED_CPULOAD_SYSCLK=y

3
boards/risc-v/eic7700x/starpro64/configs/nsh/defconfig
View file

@ -73,8 +73,6 @@ CONFIG_INTELHEX_BINARY=y
CONFIG_IRQ_WORK_STACKSIZE=2048
CONFIG_LIBC_ENVPATH=y
CONFIG_LIBC_EXECFUNCS=y
CONFIG_LIBC_MEMSET_64BIT=y
CONFIG_LIBC_MEMSET_OPTSPEED=y
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_MM_PGALLOC=y
@ -91,6 +89,7 @@ CONFIG_RAM_SIZE=1006632960
CONFIG_RAM_START=0x80200000
CONFIG_RAW_BINARY=y
CONFIG_READLINE_CMD_HISTORY=y
CONFIG_RISCV_STRING_FUNCTION=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_BACKTRACE=y
CONFIG_SCHED_CPULOAD_SYSCLK=y