Thread (103 messages) 103 messages, 16 authors, 2017-12-04

[PATCH v2 18/18] arm64: select ARCH_SUPPORTS_LTO_CLANG

From: peterz@infradead.org (Peter Zijlstra)
Date: 2017-11-16 16:59:47
Also in: linux-kbuild, lkml

On Thu, Nov 16, 2017 at 08:50:41AM -0800, Nick Desaulniers wrote:
On Thu, Nov 16, 2017 at 8:30 AM, Peter Zijlstra [off-list ref] wrote:
quoted
Ideally we'd get the toolchain people to commit to supporting the kernel
memory model along side the C11 one. That would help a ton.
Does anyone from the kernel side participate in the C standardization process?
Yes, Paul McKenney and Will Deacon. Doesn't mean these two can still be
reconciled though. From what I understand C11 (and onwards) are
incompatible with the kernel model on a number of subtle points.

Not to mention that there's people in the C11 process that strongly
argue for stuff that would break every single multi-threaded program
written since the 70s, which would include pretty much all OS kernels.
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