When compiling with -Os option along with -ffreestanding, both GCC
and clang will add implicit calls to memcpy() and memset() for stack
variables initialized in declaration.
The C standard as per Clause 4, the compiler cannot necessarily
assume that anything beyond:
* float.h
* iso646.h
* limits.h
* stdalign.h
* stdarg.h
* stdbool.h
* stddef.h
* stdint.h
* stdnoreturn.h
* fenv.h
* math.h
* and the numeric conversion functions of stdlib.h.
This patch maps memcpy() and memset() as weak-alias of sbi_memcpy()
and sbi_memset() respectively so that implicit calls to memcpy()
and memset() will compile properly.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Dong Du <Dd_nirvana@sjtu.edu.cn>
Reviewed-by: Xiang W <wxjstz@126.com>
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