[Boost-bugs] [Boost C++ Libraries] #11946: Boost.Context crashes on x86_64/MinGW

Subject: [Boost-bugs] [Boost C++ Libraries] #11946: Boost.Context crashes on x86_64/MinGW
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-01-28 16:33:13

#11946: Boost.Context crashes on x86_64/MinGW
---------------------------------+-------------------------
 Reporter:  tomasz.wlostowski@…  |      Owner:  olli
     Type:  Bugs                 |     Status:  new
Milestone:  To Be Determined     |  Component:  context
  Version:  Boost 1.60.0         |   Severity:  Showstopper
 Keywords:                       |
---------------------------------+-------------------------
 Dear Boost Developers,

 The GNU assembler version of the make_fcontext()/jump_fcontext() functions
 on x86_64 platforms have a serious bug that causes the program to
 segfault: the GAS code loads an invalid memory location instead of a
 constant due to a missing '$', for example:

 Is: movq 1, rcx            // rcx = mem[1]
 Should be: movq $1, rcx    // rcx = 1
 movq $1, %rcx -> moves

 The attached patch fixes the issue.

 Best Regards,
 Tomasz Wlostowski

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11946>
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