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
