Re: [Boost-bugs] [Boost C++ Libraries] #12719: context test cases and examples segmentation fault when built with mingw-w64 toolchain

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #12719: context test cases and examples segmentation fault when built with mingw-w64 toolchain
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-04-17 14:30:47

#12719: context test cases and examples segmentation fault when built with
mingw-w64 toolchain
-------------------------------+------------------------
  Reporter:  patrick.zani@…    |      Owner:  olli
      Type:  Bugs              |     Status:  reopened
 Milestone:  To Be Determined  |  Component:  context
   Version:  Boost 1.63.0      |   Severity:  Regression
Resolution:                    |   Keywords:
-------------------------------+------------------------
Changes (by p.remmers@…):

 * status:  closed => reopened
 * resolution:  fixed =>

Comment:

 Unfortunately, the patch does not fix the crashes.
 When looking at the differences between the masm and the gas version,
 there is still something missing:
 +    /* restore MMX control- and status-word */
 +    ldmxcsr  0xa0(%rsp)
 +    /* restore x87 control-word */
 +    fldcw   0xa4(%rsp)

 I'll attach a patch, but I haven't verified it, because boost takes so
 long to rebuild, and I've had trouble doing an incremental build (the fix
 didn't end up in the package).
 I will write an update when the rebuild is done.
 Sadly, I've seen that the next release is imminent, and this fix will
 probably not be included until wednesday...

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12719#comment:5>
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