[compiler-rt] [msan][aarch64] mallinfo interceptor (PR #73728)

[Vitaly Buka via llvm-commits]

vitalybuka wrote:

> AFAICS the interceptor zeros out the struct - which is enough to pass compiler-rt/test/msan/Linux/mallinfo.cpp, because it only tests that the struct is unpoisoned, not the actual contents - but doesn't actually give any useful info. Do any apps need the real info?

This fact is unchanged by the patch.
Real libc malloc info is irrelevant as we use c.
And some  fields are irrelevant mallinfo.


https://github.com/llvm/llvm-project/pull/73728