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From "Martin Sebor (JIRA)" <j...@apache.org>
Subject [jira] Commented: (STDCXX-600) [gcc 4.0.1/Mac OS X] SIGABRT throwing an exception
Date Tue, 16 Oct 2007 17:20:50 GMT

    [ https://issues.apache.org/jira/browse/STDCXX-600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12535304
] 

Martin Sebor commented on STDCXX-600:
-------------------------------------

While switching the order the std::exception virtual members either way (before rev 583667
and after) doesn't seem to cause any problems when linking the library, doing the same with
std::bad::alloc dtor and std::bad::alloc::what() causes the following linker error when linking
the shared library:

ld: multiple definitions of symbol __ZTVSt9bad_alloc
memory.o definition of __ZTVSt9bad_alloc in section (__DATA,__const)
/usr/lib/gcc/i686-apple-darwin8/4.0.1/../../../libsupc++.a(new_handler.o) private external
definition of __ZTVSt9bad_alloc in section (__DATA,__const)
/usr/bin/libtool: internal link edit command failed

and the following one when linking with an archive of it:

/build/sebor/stdcxx-gcc-4.0.1-11s/lib/libstd11s.a(memory.o) definition of vtable for std::bad_allocin
section (__DATA,__const)
/usr/lib/gcc/i686-apple-darwin8/4.0.1/../../../libsupc++.a(new_handler.o) private external
definition of vtable for std::bad_allocin section (__DATA,__const)
collect2: ld returned 1 exit status


> [gcc 4.0.1/Mac OS X] SIGABRT throwing an exception
> --------------------------------------------------
>
>                 Key: STDCXX-600
>                 URL: https://issues.apache.org/jira/browse/STDCXX-600
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: 18. Language Support
>    Affects Versions: trunk
>         Environment: gcc 4.0.1 on Darwin Kernel Version 8.10.1
>            Reporter: Martin Sebor
>            Priority: Critical
>
> Throwing an exception from the library causes a SIGABRT. Example programs that demonstrate
library exceptions abort, as does the program below:
> $ cat t.cpp && make t && gdb -q t
> #include <string>
> int main ()
> {
>     try {
>         std::string s;
>         s.replace (1, 1, "x");
>     }
>     catch (...) {
>     }
> }
>     
> gcc -c -I/Users/sebor/stdcxx/include/ansi -D_RWSTDDEBUG    -I/Users/sebor/stdcxx/include
-I/build/sebor/stdcxx-gcc-4.0.1-15d/include -I/Users/sebor/stdcxx/examples/include  -pedantic
-nostdinc++ -g  -W -Wall -Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long -Wcast-align
  t.cpp
> gcc t.o -o t  -L/build/sebor/stdcxx-gcc-4.0.1-15d/lib  -lstd15d -lsupc++ -lgcc_eh -lm

> Reading symbols for shared libraries ... done
> (gdb) run
> Starting program: /build/sebor/stdcxx-gcc-4.0.1-15d/examples/t 
> Reading symbols for shared libraries .+ done
> Program received signal SIGABRT, Aborted.
> 0x9003d66c in kill ()
> (gdb) where
> #0  0x9003d66c in kill ()
> #1  0x9010e8cf in raise ()
> #2  0x9010d422 in abort ()
> #3  0x00002959 in _Unwind_SetGR () at t.cpp:11
> #4  0x000026a6 in __gxx_personality_v0 () at t.cpp:11
> #5  0x002681c4 in _Unwind_RaiseException_Phase2 () at /Users/sebor/stdcxx/src/wctype.cpp:1058
> #6  0x002683f4 in _Unwind_RaiseException () at /Users/sebor/stdcxx/src/wctype.cpp:1058
> #7  0x00260a57 in __cxa_throw () at /Users/sebor/stdcxx/src/wctype.cpp:1058
> #8  0x0020b774 in __rw::__rw_throw_exception (id=9, what=0x11001d0 "") at /Users/sebor/stdcxx/src/exception.cpp:694
> #9  0x0020ac40 in __rw::__rw_throw (id=9) at /Users/sebor/stdcxx/src/exception.cpp:832
> #10 0x00238149 in std::string::replace (this=0xbffffa88, __pos1=1, __n1=1, __s=0xbac8
"x", __n2=1) at /Users/sebor/stdcxx/include/string.cc:312
> #11 0x0023852f in std::string::replace (this=0xbffffa88, __pos=1, __n=1, __s=0xbac8 "x")
at /Users/sebor/stdcxx/include/string:545
> #12 0x00001c4d in main () at t.cpp:7

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