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author | simon <simon@FreeBSD.org> | 2006-07-29 19:41:41 +0000 |
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committer | simon <simon@FreeBSD.org> | 2006-07-29 19:41:41 +0000 |
commit | 018ef6efe1e20b420eaa3afdaa37b0abeba93a1a (patch) | |
tree | e9b6155f49a3b6073b95b808e1e0a1ec5489a21f /secure/lib/libcrypto/man/OPENSSL_ia32cap.3 | |
parent | 152e76d1d1dcc649357b52f30943345b06aa162c (diff) | |
download | FreeBSD-src-018ef6efe1e20b420eaa3afdaa37b0abeba93a1a.zip FreeBSD-src-018ef6efe1e20b420eaa3afdaa37b0abeba93a1a.tar.gz |
Upgrade to OpenSSL 0.9.8b.
Diffstat (limited to 'secure/lib/libcrypto/man/OPENSSL_ia32cap.3')
-rw-r--r-- | secure/lib/libcrypto/man/OPENSSL_ia32cap.3 | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/secure/lib/libcrypto/man/OPENSSL_ia32cap.3 b/secure/lib/libcrypto/man/OPENSSL_ia32cap.3 new file mode 100644 index 0000000..d78837c --- /dev/null +++ b/secure/lib/libcrypto/man/OPENSSL_ia32cap.3 @@ -0,0 +1,162 @@ +.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32 +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sh \" Subsection heading +.br +.if t .Sp +.ne 5 +.PP +\fB\\$1\fR +.PP +.. +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. | will give a +.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to +.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C' +.\" expand to `' in nroff, nothing in troff, for use with C<>. +.tr \(*W-|\(bv\*(Tr +.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' +.ie n \{\ +. ds -- \(*W- +. ds PI pi +. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch +. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch +. ds L" "" +. ds R" "" +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds -- \|\(em\| +. ds PI \(*p +. ds L" `` +. ds R" '' +'br\} +.\" +.\" If the F register is turned on, we'll generate index entries on stderr for +.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index +.\" entries marked with X<> in POD. Of course, you'll have to process the +.\" output yourself in some meaningful fashion. +.if \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. nr % 0 +. rr F +.\} +.\" +.\" For nroff, turn off justification. Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.hy 0 +.if n .na +.\" +.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). +.\" Fear. Run. Save yourself. No user-serviceable parts. +. \" fudge factors for nroff and troff +.if n \{\ +. ds #H 0 +. ds #V .8m +. ds #F .3m +. ds #[ \f1 +. ds #] \fP +.\} +.if t \{\ +. ds #H ((1u-(\\\\n(.fu%2u))*.13m) +. ds #V .6m +. ds #F 0 +. ds #[ \& +. ds #] \& +.\} +. \" simple accents for nroff and troff +.if n \{\ +. ds ' \& +. ds ` \& +. ds ^ \& +. ds , \& +. ds ~ ~ +. ds / +.\} +.if t \{\ +. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" +. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' +. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' +. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' +. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' +. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' +.\} +. \" troff and (daisy-wheel) nroff accents +.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' +.ds 8 \h'\*(#H'\(*b\h'-\*(#H' +.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] +.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' +.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' +.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] +.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] +.ds ae a\h'-(\w'a'u*4/10)'e +.ds Ae A\h'-(\w'A'u*4/10)'E +. \" corrections for vroff +.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' +.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' +. \" for low resolution devices (crt and lpr) +.if \n(.H>23 .if \n(.V>19 \ +\{\ +. ds : e +. ds 8 ss +. ds o a +. ds d- d\h'-1'\(ga +. ds D- D\h'-1'\(hy +. ds th \o'bp' +. ds Th \o'LP' +. ds ae ae +. ds Ae AE +.\} +.rm #[ #] #H #V #F C +.\" ======================================================================== +.\" +.IX Title "OPENSSL_ia32cap 3" +.TH OPENSSL_ia32cap 3 "2006-07-29" "0.9.8b" "OpenSSL" +.SH "NAME" +OPENSSL_ia32cap \- finding the IA\-32 processor capabilities +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +.Vb 2 +\& unsigned long *OPENSSL_ia32cap_loc(void); +\& #define OPENSSL_ia32cap (*(OPENSSL_ia32cap_loc())) +.Ve +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +Value returned by \fIOPENSSL_ia32cap_loc()\fR is address of a variable +containing \s-1IA\-32\s0 processor capabilities bit vector as it appears in \s-1EDX\s0 +register after executing \s-1CPUID\s0 instruction with EAX=1 input value (see +Intel Application Note #241618). Naturally it's meaningful on IA\-32[E] +platforms only. The variable is normally set up automatically upon +toolkit initialization, but can be manipulated afterwards to modify +crypto library behaviour. For the moment of this writing three bits are +significant, namely bit #28 denoting Hyperthreading, which is used to +distinguish Intel P4 core, bit #26 denoting \s-1SSE2\s0 support, and bit #4 +denoting presence of Time-Stamp Counter. Clearing bit #26 at run-time +for example disables high-performance \s-1SSE2\s0 code present in the crypto +library. You might have to do this if target OpenSSL application is +executed on \s-1SSE2\s0 capable \s-1CPU\s0, but under control of \s-1OS\s0 which does not +support \s-1SSE2\s0 extentions. Even though you can manipulate the value +programmatically, you most likely will find it more appropriate to set +up an environment variable with the same name prior starting target +application, e.g. 'env OPENSSL_ia32cap=0x10 apps/openssl', to achieve +same effect without modifying the application source code. +Alternatively you can reconfigure the toolkit with no\-sse2 option and +recompile. |