| From | Andi Kleen <> | Subject | Re: [RFC/PATCH RESEND -next 03/21] x86: add kasan hooks fort memcpy/memmove/memset functions | Date | Wed, 09 Jul 2014 12:31:58 -0700 |
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Andrey Ryabinin <a.ryabinin@samsung.com> writes: > + > +#undef memcpy > +void *kasan_memset(void *ptr, int val, size_t len); > +void *kasan_memcpy(void *dst, const void *src, size_t len); > +void *kasan_memmove(void *dst, const void *src, size_t len); > + > +#define memcpy(dst, src, len) kasan_memcpy((dst), (src), (len)) > +#define memset(ptr, val, len) kasan_memset((ptr), (val), (len)) > +#define memmove(dst, src, len) kasan_memmove((dst), (src), (len))
I don't think just define is enough, gcc can call these functions implicitely too (both with and without __). For example for a struct copy.
You need to have true linker level aliases.
-Andi
-- ak@linux.intel.com -- Speaking for myself only
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