參考資訊:
https://patchwork.kernel.org/project/linux-kbuild/patch/20190312215203.27643-1-natechancellor@gmail.com/
添加如下程式到lib/string.c
#ifdef __HAVE_ARCH_MEMCMP int bcmp(const void *cs, const void *ct, size_t n) { return memcmp(cs, ct, n); } EXPORT_SYMBOL(bcmp); #else /** * memcmp - Compare two areas of memory * @cs: One area of memory * @ct: Another area of memory * @count: The size of the area. */ #undef memcmp __visible int memcmp(const void *cs, const void *ct, size_t count) { const unsigned char *su1, *su2; int res = 0; for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--) if ((res = *su1 - *su2) != 0) break; return res; } EXPORT_SYMBOL(memcmp); #endif