[aarch64-port-dev ] [Roland Westrelin] Re: Aarch64 port for ZGC, so far
per.liden at oracle.com
Mon Apr 15 15:33:13 UTC 2019
On 04/15/2019 05:25 PM, Andrew Haley wrote:
> On 4/15/19 3:57 PM, Stuart Monteith wrote:
>> If I understand this correctly, siginfo_t would contain the
>> faulting address with the tag wiped. The ucontext would still contain
>> the full 64-bit registers, unmolested. I've asked internally, but that
>> is how I've interpreted it.
> That sounds sensible.
Also note that depending on what this oop is used for in the signal
handler, you might not need the tag bits (they typically are only useful
for ZGC). But if you really do need them, you can call
ZAddress::good(oop) to slap the bits on again.
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