ARM: 9022/1: Change arch/arm/lib/mem*.S to use WEAK instead of .weak
mainline inclusion from mainline-5.11-rc1 commit 735e8d93 category: feature feature: ARM KASAN support bugzilla: 46872 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=735e8d93dc2b107f7891a9c2b1c4cfbea1fcbbbc ------------------------------------------------- Commit d6d51a96 ("ARM: 9014/2: Replace string mem* functions for KASan") add .weak directives to memcpy/memmove/memset to avoid collision with KASAN interceptors. This does not work with LLVM's integrated assembler (the assembly snippet `.weak memcpy ... .globl memcpy` produces a STB_GLOBAL memcpy while GNU as produces a STB_WEAK memcpy). LLVM 12 (since https://reviews.llvm.org/D90108) will error on such an overridden symbol binding. Use the appropriate WEAK macro instead. Link: https://github.com/ClangBuiltLinux/linux/issues/1190Reviewed-by: NJing Xiangfeng <jingxiangfeng@huawei.com> Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
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