[Boost-bugs] [Boost C++ Libraries] #9634: v 1.54 - powerpc64/LE : filesystem : operations_test : core

Subject: [Boost-bugs] [Boost C++ Libraries] #9634: v 1.54 - powerpc64/LE : filesystem : operations_test : core
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-02-06 13:13:02

#9634: v 1.54 - powerpc64/LE : filesystem : operations_test : core
-------------------------------------+------------------------
 Reporter:  Tony Reix <tony.reix@…>  |      Owner:  bemandawes
     Type:  Bugs                     |     Status:  new
Milestone:  To Be Determined         |  Component:  filesystem
  Version:  Boost 1.54.0             |   Severity:  Problem
 Keywords:                           |
-------------------------------------+------------------------
 Hi,
 Test
 /boost1.54-1.54.0/bin.v2/libs/filesystem/test/operations_test_static.test/gcc-4.8/debug
 /link-static/operations_test generates a core, when testing it with
 version 1.54 on powerpc64/LE - Ubuntu 14.04 alpha2.
 Defect has already been opened against Ubuntu, since they do not seem to
 have lunch Boost tests in this environment: no answer yet.
 Debugging seems to show that the issue is in:

 BOOST : libs/filesystem/src/path.cpp

   std::locale path::imbue(const std::locale& loc)
   {
     std::locale temp(path_locale); <<<<<<<<<<<<<<<<<<<<<<< line 918
     path_locale = loc;
     codecvt_facet_ptr =
       &std::use_facet<std::codecvt<wchar_t, char, std::mbstate_t>
 >(path_locale);
     return temp;
   }

 At line 918, C++ tries to do some initialization. This seems to imply to
 use field _M_impl of path_locale, which is 0x0.
 It seems that no initialization of path_locale is done and thus _M_impl
 stay 0x0. Then, there is a crash in stdlibc++ code.


 (gdb) where
 #0  boost::filesystem::path::imbue (loc=...) at
 ../libs/filesystem/src/path.cpp:918
 #1  0x00000000100491b0 in boost::filesystem::path::codecvt () at
 ../libs/filesystem/src/path.cpp:911
 #2  0x000000001004aa3c in boost::filesystem::path::wstring
 (this=0x3ffffffff5c8) at ../boost/filesystem/path.hpp:386
 #3  0x000000001004a540 in boost::filesystem::detail::unique_path
 (model=..., ec=0x0) at ../libs/filesystem/src/unique_path.cpp:113
 #4  0x00000000100238c4 in boost::filesystem::unique_path (p=...) at
 ../boost/filesystem/operations.hpp:544
 #5  0x00000000100200cc in __static_initialization_and_destruction_0
 (__initialize_p=1, __priority=65535) at
 ../libs/filesystem/test/operations_test.cpp:118
 #6  0x00000000100201fc in _GLOBAL__sub_I__Z8cpp_mainiPPc () at
 ../libs/filesystem/test/operations_test.cpp:2034
 #7  0x000000001004d444 in __libc_csu_init ()
 #8  0x00003fffb7c8e1ec in generic_start_main (main=0x1003173c <main(int,
 char**)>, argc=<optimized out>, argv=0x3ffffffffa68,
 auxvec=0x3ffffffffb10, init=0x1004d3b0 <__libc_csu_init>,
     rtld_fini=<optimized out>, stack_end=<optimized out>, fini=<optimized
 out>) at ../csu/libc-start.c:246
 #9  0x00003fffb7c8e458 in __libc_start_main (argc=<optimized out>,
 argv=<optimized out>, ev=<optimized out>, auxvec=<optimized out>,
 rtld_fini=<optimized out>, stinfo=<optimized out>,
     stack_on_entry=<optimized out>) at ../sysdeps/unix/sysv/linux/powerpc
 /libc-start.c:93
 #10 0x0000000000000000 in ?? ()


 (gdb) p loc
 $25 = (const std::locale &) @0x3ffffffff418: {static none = 0, static
 ctype = 1, static numeric = 2, static collate = 4, static time = 8, static
 monetary = 16, static messages = 32, static all = 63,
   _M_impl = 0x100790f0, static _S_classic = 0x3fffb7fae0b8 <(anonymous
 namespace)::c_locale_impl>, static _S_global = 0x3fffb7fae0b8 <(anonymous
 namespace)::c_locale_impl>,
   static _S_categories = 0x3fffb7f92cb8 <__gnu_cxx::category_names>,
 static _S_once = 0}


 (gdb) p path_locale
 $26 = {static none = 0, static ctype = 1, static numeric = 2, static
 collate = 4, static time = 8, static monetary = 16, static messages = 32,
 static all = 63,
       M_impl = 0x0,
   static _S_classic = 0x3fffb7fae0b8 <(anonymous
 namespace)::c_locale_impl>, static _S_global = 0x3fffb7fae0b8 <(anonymous
 namespace)::c_locale_impl>,
   static _S_categories = 0x3fffb7f92cb8 <__gnu_cxx::category_names>,
 static _S_once = 0}


 So, the question is: why path_locale has not been initialized ? and why
 this happens in PPC/LE and not elsewhere ?

 I'm not an expert in C++ and need help.

 Thanks/Regards

 Tony

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9634>
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