Messages in this thread Patch in this message | | | Subject | Re: [PATCH 1/2] riscv: Add memmove string operation. | From | Andrey Ryabinin <> | Date | Thu, 22 Aug 2019 18:59:02 +0300 |
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On 8/7/19 10:19 AM, Nick Hu wrote: > There are some features which need this string operation for compilation, > like KASAN. So the purpose of this porting is for the features like KASAN > which cannot be compiled without it. >
Compilation error can be fixed by diff bellow (I didn't test it). If you don't need memmove very early (before kasan_early_init()) than arch-specific not-instrumented memmove() isn't necessary to have.
--- mm/kasan/common.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/mm/kasan/common.c b/mm/kasan/common.c index 6814d6d6a023..897f9520bab3 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -107,6 +107,7 @@ void *memset(void *addr, int c, size_t len) return __memset(addr, c, len); } +#ifdef __HAVE_ARCH_MEMMOVE #undef memmove void *memmove(void *dest, const void *src, size_t len) { @@ -115,6 +116,7 @@ void *memmove(void *dest, const void *src, size_t len) return __memmove(dest, src, len); } +#endif #undef memcpy void *memcpy(void *dest, const void *src, size_t len) -- 2.21.0
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