[Boost-bugs] [Boost C++ Libraries] #8650: Segmentation fault on x86 Linux with SSE2 intrinsics

Subject: [Boost-bugs] [Boost C++ Libraries] #8650: Segmentation fault on x86 Linux with SSE2 intrinsics
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-06-04 17:37:11

#8650: Segmentation fault on x86 Linux with SSE2 intrinsics
---------------------------------------+------------------------------------
 Reporter:  andrey.zhdanoff@…          |       Owner:  olli   
     Type:  Bugs                       |      Status:  new    
Milestone:  To Be Determined           |   Component:  context
  Version:  Boost 1.53.0               |    Severity:  Problem
 Keywords:                             |  
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 Modified coroutine/example/echo.cpp by adding function which using SSE2
 intrinsic . Program built for x86 is seg-faulting due to miss-aligned
 stack. Build with:
 g++ echosse.cpp -m32 -o echosse -O3 -g -I ../boost/boost_build/include
 /boost-1_53/ -Wl,libboost_context-gcc46-mt-s-1_53.a
 GCC version tested: 4.6.2, 4.8.0.
 Problem is in make_i386_sysv_elf_gas.S, line:
     leal   -0x8(%eax),     %edx         /* reserve space for the last
 frame on context stack; (ESP - 0x4) % 16 == 0 */
 - apparently pasted from x64 version.
 Changing to:
 leal   -0x14(%eax),     %edx
 fixed the problem for me.

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/8650>
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