Review llvm D55878 default to -Wl,--hash-style=gnu

[Andriy Voskoboinyk]

Wed, 30 Jan 2019 12:07:03 +0200 було написано Ray <i at maskray.me>:

Do we have support in kernel for it? Or that means we will need to
add LDFLAGS+=-Wl,--hash-style=sysv for kernel builds?

> Can someone review this upstream clang change
> https://reviews.llvm.org/D55878 for default -Wl,--hash-style option
> used on FreeBSD? The current reviewers might be busy at the moment..
>
> MIPS ABI require .dynsym to be s orted in a different way, but other
> architectures can benefit from this change (a few hundreds bytes to a
> few kilobytes for typical executables).
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