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From "Martin Sebor (JIRA)" <j...@apache.org>
Subject [jira] Commented: (STDCXX-1043) [Como como 4.3.10.1] std::cout << std::endl cayses SIGSEGV on Linux
Date Tue, 08 Sep 2009 17:07:57 GMT

    [ https://issues.apache.org/jira/browse/STDCXX-1043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12752608#action_12752608
] 

Martin Sebor commented on STDCXX-1043:
--------------------------------------

Does an unoptimized non-reentrant build (11s) work? We use EDG eccp only for conformance testing;
optimization or thread safety might have problems, shared library builds are known not to
work at all.

> [Como como 4.3.10.1] std::cout << std::endl cayses SIGSEGV on Linux
> -------------------------------------------------------------------
>
>                 Key: STDCXX-1043
>                 URL: https://issues.apache.org/jira/browse/STDCXX-1043
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: 22. Localization
>    Affects Versions: 4.2.1
>         Environment: Linux Gentoo x86_64, como 4.3.10.1, GCC 4.3.2 backend with -m32
switch.
> stdcxx 4.2.1 BUILDTYPE 12s with full locales installed.
>            Reporter: Jaroslaw Zola
>            Priority: Critical
>
> The program below
> x.cpp:
> #include <iostream>
> int main() {
>     std::cout << std::endl;
>     return 0;
> }
> results in SIGSEGV.
> como -g3 -gstabs x.cpp -o x
> ./x
> Segmentation fault (core dumped)
> gdb ./x core
> [...]
> Core was generated by `./x'.
> Program terminated with signal 11, Segmentation fault.
> [New process 6685]
> #0  0xf7e46cb3 in strchr () from /lib32/libc.so.6
> (gdb) bt
> #0  0xf7e46cb3 in strchr () from /lib32/libc.so.6
> #1  0x080571bf in std::locale::_C_get_std_facet ()
> #2  0x08049a6a in _ZN4__rw18__rw_get_std_facetERKSt6localeNS_10__rw_facet13_C_facet_typeEPFPS3_jPKcE
(__11910_42___loc=0xff8ac138, 
>     __11911_48___type=__N4__rw10__rw_facet8_C_ctypeE, __11912_48___ctor=0x804a7b9 <__rw::__rw_ct_ctype(unsigned
int, char const*)>)
>     at /opt/stdcxx-4.2.1-como/include/loc/_locale.h:369
> #3  0x0804995f in _ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc (this=0x8091ae4, __15295_27___c=10
'\n') at /opt/stdcxx-4.2.1-como/include/rw/_basic_ios.h:225
> #4  0x080499fb in _ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_ (__16097_39___strm=0x8091ae0)
at /opt/stdcxx-4.2.1-como/include/ostream:480
> #5  0x08049824 in main () at x.cpp:4
> changing LANG, LC_ALL, etc. to C or any other locale seems to have no effect on the program's
behavior.

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