[MacPorts] #65153: nss fails to build for x86_64 on 10.6.8: no such instruction: `pclmulqdq $16, %xmm2, %xmm0'
MacPorts
noreply at macports.org
Tue May 10 11:47:22 UTC 2022
#65153: nss fails to build for x86_64 on 10.6.8: no such instruction: `pclmulqdq
$16, %xmm2,%xmm0'
---------------------------+---------------------------------
Reporter: barracuda156 | Owner: (none)
Type: defect | Status: new
Priority: Normal | Milestone:
Component: ports | Version: 2.7.2
Resolution: | Keywords: x86_64, snowleopard
Port: nss |
---------------------------+---------------------------------
Comment (by barracuda156):
Apparently this is where it has been broken:
{{{
- Bug 805604 - Support for AES-NI and AVX accelerated AES-GCM was
contributed by Shay Gueron of
Intel. If compiled on Linux systems in 64-bit mode, NSS will include
runtime detection to
check if the platform supports AES-NI and PCLMULQDQ. If so, NSS uses
the optimized code path,
reducing the CPU cycles per byte to 1/20 of what was required before
the patch
(https://bugzilla.mozilla.org/show_bug.cgi?id=805604 and
https://crypto.stanford.edu/RealWorldCrypto/slides/gueron.pdf).
Support for other platforms,
such as Windows, will follow in a future NSS release.
(https://bugzilla.mozilla.org/show_bug.cgi?id=540986)
}}}
--
Ticket URL: <https://trac.macports.org/ticket/65153#comment:3>
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