On Fri, Apr 13, 2018 at 10:54 AM, Russell King - ARM Linux <li...@armlinux.org.uk> wrote: > > FPE_FLTINV means "floating point invalid operation". Does it really > cover the case where hardware has failed, or is it intended to cover > the case where userspace did something wrong and asked for an invalid > operation from the FP hardware?
Note that the number of people who actually look at the si_code is approximately zero. But the ones that _do_ check the si_code are certainly not going to check it against a new code that they don't know about. I suspect that if you start searching for FLT_xyz occurrences in code, approximately 100% of them are from the kernel code that generates them, not from any actual users. So I'd be very surprised if you can find *anybody* who cares about that exact value (with the possible exceptions of test-suites). Sadly, google code-search is no more. It was useful for things like that. Linus