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Re: Workaround of CPU device errata?
- From: Nicholas Sherlock <n dot sherlock at gmail dot com>
- To: gcc-help at gcc dot gnu dot org
- Date: Fri, 16 Oct 2009 03:45:52 +1300
- Subject: Re: Workaround of CPU device errata?
- References: <20091015185339k-tsubota@mail.jp.nec.com>
k-tsubota@ap.jp.nec.com wrote:
Does anyone know how to confirm if these workarounds
are already implemented in current GCC?
-> http://download.intel.com/design/mobile/SPECUPDT/300303.pdf
-> Errata W11
As far as I can see, this is only of interest to debug-tool writers, not
application developers.
W17
Only applies in ring 0, where these registers are writable. The
workaround is for a debugger to ignore phantom breakpoints being
triggered, not for the application to change.
W34, W56
I don't know about these two. The first one sounds exceedingly unlikely
to be triggered.
Cheers,
Nicholas Sherlock