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<title>openbsd/src/lib/libcrypto/perlasm, branch OPENBSD_6_3_BASE</title>
<subtitle>A mirror of https://github.com/libressl/openbsd.git
</subtitle>
<id>https://git.lua4.win/openbsd/atom?h=OPENBSD_6_3_BASE</id>
<link rel='self' href='https://git.lua4.win/openbsd/atom?h=OPENBSD_6_3_BASE'/>
<link rel='alternate' type='text/html' href='https://git.lua4.win/openbsd/'/>
<updated>2017-12-11T05:48:01+00:00</updated>
<entry>
<title>http://repzret.org/p/repzret/</title>
<updated>2017-12-11T05:48:01+00:00</updated>
<author>
<name>deraadt</name>
<email></email>
</author>
<published>2017-12-11T05:48:01+00:00</published>
<link rel='alternate' type='text/html' href='https://git.lua4.win/openbsd/commit/?id=06a79a412573b1755b84374f8fdb1970ca59f1b6'/>
<id>urn:sha1:06a79a412573b1755b84374f8fdb1970ca59f1b6</id>
<content type='text'>
My read of this:  Long time ago (Think Conan, not dinasaurs) during the race
to make speedier processors, a cpu vendor built a pipeline with a bad stall,
and proposed a tremendously hasky workaround.  A wizard adopted this into his
perl scroll, and failed to reflect later when no compiler adopted the practice.
This relic remains at the tail end of some functions in OpenSSL as
".byte 0xf3,0xc3".  Banish it straight to hell.
ok mlarkin, others also stared blankly
</content>
</entry>
<entry>
<title>.init stub creation doesn't need a jmp + .align to reach a branch target,</title>
<updated>2017-06-28T13:34:50+00:00</updated>
<author>
<name>deraadt</name>
<email></email>
</author>
<published>2017-06-28T13:34:50+00:00</published>
<link rel='alternate' type='text/html' href='https://git.lua4.win/openbsd/commit/?id=8dee50e45d344123bec1d8e5197c42f009053fec'/>
<id>urn:sha1:8dee50e45d344123bec1d8e5197c42f009053fec</id>
<content type='text'>
just fall into the code.  The .align created a FILL zone in the .init section,
which on i386 was filled with a NOP-sled, something we want to get away
from.
discussed with kettenis and tom
</content>
</entry>
<entry>
<title>Replace all uses of magic numbers when operating on OPENSSL_ia32_P[] by</title>
<updated>2016-11-04T17:30:30+00:00</updated>
<author>
<name>miod</name>
<email></email>
</author>
<published>2016-11-04T17:30:30+00:00</published>
<link rel='alternate' type='text/html' href='https://git.lua4.win/openbsd/commit/?id=1a12fc8399638223feca8f853e2ac2cc22eeb471'/>
<id>urn:sha1:1a12fc8399638223feca8f853e2ac2cc22eeb471</id>
<content type='text'>
meaningful constants in a private header file, so that reviewers can actually
get a chance to figure out what the code is attempting to do without knowing
all cpuid bits.

While there, turn it from an array of two 32-bit ints into a properly aligned
64-bit int.

Use of OPENSSL_ia32_P is now restricted to the assembler parts. C code will
now always use OPENSSL_cpu_caps() and check for the proper bits in the
whole 64-bit word it returns.

i386 tests and ok jsing@
</content>
</entry>
<entry>
<title>Bring back the expansion-into-.byte-sequences routines removed in r1.9, but</title>
<updated>2015-09-11T14:57:29+00:00</updated>
<author>
<name>miod</name>
<email></email>
</author>
<published>2015-09-11T14:57:29+00:00</published>
<link rel='alternate' type='text/html' href='https://git.lua4.win/openbsd/commit/?id=1e96b158b233731c4fcc4561d29354dfa0b7799a'/>
<id>urn:sha1:1e96b158b233731c4fcc4561d29354dfa0b7799a</id>
<content type='text'>
only define them if not building for the "openbsd" flavour.

This way, non-obfuscated output can still be generated for analysis, by using
the "openbsd" flavour (which OpenBSD HEAD will do), and obfuscated output,
compatible with older as(1), will be generated for other platforms.

The portable version of LibreSSL can then use "openbsd-portable" as the
flavour for OpenBSD/amd64 so that generated files can be compiled with
OpenBSD 5.7 and other older versions stuck with as(1) 2.15.
</content>
</entry>
<entry>
<title>Fixup inter-bank movq/movd operations, emit bytes for pclmulqdq again.</title>
<updated>2015-09-11T12:17:57+00:00</updated>
<author>
<name>bcook</name>
<email></email>
</author>
<published>2015-09-11T12:17:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.lua4.win/openbsd/commit/?id=eafebfdd3adba0417a72d6cc8a75f367fc2fbbdb'/>
<id>urn:sha1:eafebfdd3adba0417a72d6cc8a75f367fc2fbbdb</id>
<content type='text'>
Fixes builds gcc + Apple's assembler, working on reenabling builds with older
OpenBSD releases.

based on OpenSSL commit:
 https://git.openssl.org/?p=openssl.git;a=commitdiff;h=902b30df193afc3417a96ba72a81ed390bd50de3

ok miod@
</content>
</entry>
<entry>
<title>Remove the logic responsible for outputting most AES-NI instructions as</title>
<updated>2015-07-19T02:26:32+00:00</updated>
<author>
<name>miod</name>
<email></email>
</author>
<published>2015-07-19T02:26:32+00:00</published>
<link rel='alternate' type='text/html' href='https://git.lua4.win/openbsd/commit/?id=3a1c21ea05417cdafece6fcfc145ab3f83910695'/>
<id>urn:sha1:3a1c21ea05417cdafece6fcfc145ab3f83910695</id>
<content type='text'>
raw byte sequences. The toolchains have had some time to update and assemble
the instructions correctly (except for p{ins,ext}rd which are not supported
yet by as(1) under OpenBSD, but will be fixed shortly).

Inspired by a discussion between tedu@ and John-Mark Gurney.
Verified to still work on Mac OS X and average Linux distros by bcook@
</content>
</entry>
<entry>
<title>s/assember/assembler/ before someone gets offended.  At the last</title>
<updated>2014-06-06T20:18:20+00:00</updated>
<author>
<name>deraadt</name>
<email></email>
</author>
<published>2014-06-06T20:18:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.lua4.win/openbsd/commit/?id=7bff3543d8495e130543a4e9d5a67d4ac4941aac'/>
<id>urn:sha1:7bff3543d8495e130543a4e9d5a67d4ac4941aac</id>
<content type='text'>
hackathon, just saying 'ass ember' was enough to start giggles.
Unfortunately far more offensive stuff remains in here...
</content>
</entry>
<entry>
<title>A few months back there was a big community fuss regarding direct-use</title>
<updated>2014-06-02T15:08:38+00:00</updated>
<author>
<name>deraadt</name>
<email></email>
</author>
<published>2014-06-02T15:08:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.lua4.win/openbsd/commit/?id=63bcac43aa0d6361864d2102a9cbe8ec910b763e'/>
<id>urn:sha1:63bcac43aa0d6361864d2102a9cbe8ec910b763e</id>
<content type='text'>
of the intel RDRAND instruction.  Consensus was RDRAND should probably
only be used as an additional source of entropy in a mixer.

Guess which library bends over backwards to provide easy access to
RDRAND?  Yep.  Guess which applications are using this support?  Not
even one... but still, this is being placed as a trap for someone.

Send this support straight to the abyss.
ok kettenis
</content>
</entry>
<entry>
<title>Stop paying lip service to non-AT&amp;T syntax assemblers in the x86 world.</title>
<updated>2014-04-17T20:17:45+00:00</updated>
<author>
<name>miod</name>
<email></email>
</author>
<published>2014-04-17T20:17:45+00:00</published>
<link rel='alternate' type='text/html' href='https://git.lua4.win/openbsd/commit/?id=233ad8c9007aff9089a52327cffb9efe414dc123'/>
<id>urn:sha1:233ad8c9007aff9089a52327cffb9efe414dc123</id>
<content type='text'>
</content>
</entry>
<entry>
<title>Merge conflicts; remove MacOS, Netware, OS/2, VMS and Windows build machinery.</title>
<updated>2014-04-13T15:25:35+00:00</updated>
<author>
<name>miod</name>
<email></email>
</author>
<published>2014-04-13T15:25:35+00:00</published>
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<id>urn:sha1:d2b3c9742a7df4ab87384039c99682d1944f66d7</id>
<content type='text'>
</content>
</entry>
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