Re: minimal example of string_ctor core

["Anthony Williams" <anthony_w dot geo at yahoo dot com>]

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On sparc-solaris-2.7, using egcs-20000501 (gnu binutils 2.9.1),
compiling the 21_strings test program from testsuite
ctor_copy_dtor.cc, I get a core dump.

Loading into gdb shows it to be in line 94 of the test program.

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This GDB was configured as "sparc-sun-solaris2.7"...
Core was generated by `/export/home/awilliam/testgcc/a.out'.
Program terminated with signal 11, Segmentation Fault.
Reading symbols from /work/egcs/lib/libstdc++.so.3...done.
Reading symbols from /usr/lib/libm.so.1...done.
Reading symbols from /usr/lib/libc.so.1...done.
Reading symbols from /usr/lib/libdl.so.1...done.
Reading symbols from
/usr/platform/SUNW,Ultra-Enterprise-10000/lib/libc_psr.so.1...done.
#0  0xff170b50 in seg1 () from
/usr/platform/SUNW,Ultra-Enterprise-10000/lib/libc_psr.so.1
(gdb) where
#0  0xff170b50 in seg1 () from
/usr/platform/SUNW,Ultra-Enterprise-10000/lib/libc_psr.so.1
#1  0xff1708a0 in blalign () from
/usr/platform/SUNW,Ultra-Enterprise-10000/lib/libc_psr.so.1
#2  0x14068 in std::char_traits<char>::copy (
    __s1=0x31880
"ÿ6B8ÿ6BPÿ6Bhÿ6B\200ÿ6B\230ÿ6B°ÿ6BÈÿ6Bàÿ6Bøÿ6C\020ÿ6C(ÿ6C@ÿ6CXÿ6Cpÿ6C\
10ÿ6C ÿ6C¸ÿ6CÐÿ6Cèÿ6D",
    __s2=0x3fbef814 "", __n=23) at
/work/egcs/include/g++-v3/bits/char_traits.h:187
#3  0x13b24 in std::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_S_copy_chars (
    __p=0x31164 "rodeo beach, marin", __j1=0xffbef830 "rodeo beach,
marin", __j2=0x31164 "rodeo beach, marin")
    at /work/egcs/include/g++-v3/bits/basic_string.h:294
#4  0x135dc in char * std::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_S_construct<char const *> (
    __beg=0xffbef830 "rodeo beach, marin", __end=0x3fbef82b "",
__a=@0xffbef818) at /work/egcs/include/g++-v3/bits/string.tcc:133
#5  0x13188 in char * std::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_S_construct_aux<char const *> (
    __beg=0x3fbef82b "", __end=0xffbef818 "", __a=@0xffbef818) at
/work/egcs/include/g++-v3/bits/basic_string.h:660
#6  0x12bc0 in char * std::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_S_construct<char const *> (
    __beg=0xffbef830 "rodeo beach, marin", __end=0x3fbef82b "",
__a=@0xffbef818)
    at /work/egcs/include/g++-v3/bits/basic_string.h:677
#7  0x129cc in std::basic_string<char, std::char_traits<char>,
std::allocator<char> >::basic_string (this=0xffbef808,
    __s=0xffbef830 "rodeo beach, marin", __n=1073741819,
__a=@0xffbef818) at /work/egcs/include/g++-v3/bits/string.tcc:199
#8  0x11c6c in test01 () at ctor_copy_dtor.cc:94
#9  0x12688 in main () at ctor_copy_dtor.cc:179
(gdb) up 8
#8  0x11c6c in test01 () at ctor_copy_dtor.cc:94
94          std::string str03(str_lit01, csz01 - 1);

Anthony

- ----- Original Message -----
From: Benjamin Kosnik <bkoz@cygnus.com>
To: <libstdc++@sourceware.cygnus.com>
Sent: 11 May 2000 02:02
Subject: minimal example of string_ctor core


>
> Can somebody provide me with this? FWIW, I don't see this behavior
> on Solaris2.6.
>
- -benjamin

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