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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 16:38:50 GMT

    [ https://issues.apache.org/jira/browse/STDCXX-600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12535292
] 

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

Enhancing the original test case to catch the exception and print out the what() string reveals
either another problem or a different symptom of the same one. The following post might be
a clue as to what's going on:

http://www.nabble.com/RE%3A-4.2.0-rc-6%2C-final-candidate-p13234984.html

$ cat t.cpp && make t && gdb -q t
#include <cstdio>
#include <exception>
#include <string>

int main ()
{
    try {
        std::string s;
        s.replace (1, 1, "x");
    }
    catch (std::exception &ex) {
        std::fprintf (stderr, "%s\n", ex.what ());
    }
} 
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
terminate called after throwing an instance of 'std::out_of_range'
t(17938) malloc: ***  Deallocation of a pointer not malloced: 0x11003c0; This could be a double
free(), or free() called with the middle of an allocated block; Try setting environment variable
MallocHelp to see tools to help debug
  what():  
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x00000016
0x900298db in fputs ()
(gdb) where
#0  0x900298db in fputs ()
#1  0x00261b9b in __gnu_cxx::__verbose_terminate_handler () at /Users/sebor/stdcxx/src/wctype.cpp:1058
#2  0x00260912 in __cxxabiv1::__terminate () at /Users/sebor/stdcxx/src/wctype.cpp:1058
#3  0x00260950 in std::terminate () at /Users/sebor/stdcxx/src/wctype.cpp:1058
#4  0x00260a64 in __cxa_throw () at /Users/sebor/stdcxx/src/wctype.cpp:1058
#5  0x0020b774 in __rw::__rw_throw_exception (id=9, what=0x11001d0 "") at /Users/sebor/stdcxx/src/exception.cpp:694
#6  0x0020ac40 in __rw::__rw_throw (id=9) at /Users/sebor/stdcxx/src/exception.cpp:832
#7  0x00238149 in std::string::replace (this=0xbffffa74, __pos1=1, __n1=1, __s=0xbac4 "x",
__n2=1) at /Users/sebor/stdcxx/include/string.cc:312
#8  0x0023852f in std::string::replace (this=0xbffffa74, __pos=1, __n=1, __s=0xbac4 "x") at
/Users/sebor/stdcxx/include/string:545
#9  0x00001bde in main () at t.cpp:9


> [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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