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Enji Cooper d63d2d29cb Fix test-fenv:test_dfl_env when run on some amd64 CPUs 
Compare the fields that the AMD [1] and Intel [2] specs say will be
set once fnstenv returns.

Not all amd64 capable processors zero out the env.__x87.__other field
(example: AMD Opteron 6308). The AMD64/x64 specs aren't explicit on what the
env.__x87.__other field will contain after fnstenv is executed, so the values
in env.__x87.__other could be filled with arbitrary data depending on how the
CPU-specific implementation of fnstenv.

1. http://support.amd.com/TechDocs/26569_APM_v5.pdf
2. http://www.intel.com/Assets/en_US/PDF/manual/253666.pdf

Discussed with: kib, Anton Rang <anton.rang@isilon.com>
Reviewed by: Daniel O'Connor <darius@dons.net.au> (earlier patch; pre-generalization)
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
Reported by: Bill Morchin <wmorchin@isilon.com>
2015-10-14 20:22:12 +00:00
..
bsdbox Add mv / expr ; these are used by the updated freebsd-wifi-build environment. 2015-05-19 03:02:52 +00:00
build Add WITHOUT_LLDB for src.conf(5) 2015-10-14 00:23:31 +00:00
bus_space Add an example program (in Python) for the AMD Am79c900 (ILACC) 2015-08-02 21:24:03 +00:00
debugscripts Remove debugging code that sneaked in. 2015-04-09 07:52:03 +00:00
diag NO_MAN= has been deprecated in favor of MAN= for some time, go ahead 2014-04-13 05:21:56 +00:00
ifnet * Handle ++x as well as x++ while converting. 2014-06-25 15:22:14 +00:00
kerneldoc Clean up more lindev(4) vestiges. 2014-05-02 11:09:01 +00:00
KSE NO_MAN= has been deprecated in favor of MAN= for some time, go ahead 2014-04-13 05:21:56 +00:00
LibraryReport
regression Fix test-fenv:test_dfl_env when run on some amd64 CPUs 2015-10-14 20:22:12 +00:00
sched Add a new thread state "spinning" to schedgraph and add tracepoints at the 2014-11-04 16:35:56 +00:00
test Remove the old DTrace test suite makefile - it was somewhat primitive and 2015-02-28 23:35:29 +00:00
tools META_MODE: Remove DEP_RELDIR from Makefile.depend files. 2015-09-25 19:26:08 +00:00
install.sh Use = not == in test arguments. 2013-01-24 20:47:37 +00:00
make_libdeps.sh Avoid rs(1) hitting LINE_MAX with custom trees that have large dependencies. 2014-09-08 17:01:30 +00:00
README
tinder.sh

README 

$FreeBSD$

This directory tree contains tools used for the maintenance and
testing of FreeBSD.  There is no toplevel Makefile structure since
these tools are not meant to be built as part of the standard system,
though there may be individual Makefiles in some of the subdirs.

Please read the README files in the subdirs for further information.