problems with simple C++ program Alpha binary

[Kenneth Hoste <kenneth dot hoste at ugent dot be>]

Hello,

I successfully built a crosscompiler for Alpha (EV5)/Linux (host:  
x86_64/Linux) using crosstool-ng.
It was a breeze, so thanks to everyone involved in this project, I  
probably wouldn't have been
able to get an Alpha/Linux crosscompiler built otherwise.

I configured it as follows:

	• GCC 4.2.4
	• binutils 2.19.1
	• glibc 2.9
	• GMP 4.3.1
	• MPFR 2.4.1
	• Linux kernel 2.6.31.1
	• support for C, C++ and Fortran

I've used the crosscompiler to obtain Alpha binaries for SPEC CPU2000  
and CPU2006,
and have been testing them using the M5 simulator (m5sim.org).

The binaries work without problems for most of the benchmarks, but are  
troublesome for others.

Most of the problems I'm running into involve getting working binaries  
for C++ programs, even
very simple ones.

For example, running a compiled version of the following "hello world"  
C++ testcase results in a
program crash (complete error messages at the end of this email).

	#include <iostream>
	using namespace std;

	int main()
	{
	  cout << "Hello world\n";
	  return 0;
	}

The problem does not occur when the C++-style IO is replaced by C- 
style IO (stdio.h).

Does anyone know what could be the issue causing these problems?
I suspect something is wrong with my crosscompiler setup, but I have  
no idea where
to look or how to figure it out.

Any comments or pointers in the direction of solving this would be  
highly appreciated...


Error message using M5:

	panic: Tried to execute unmapped address 0x12048e5f4.

Error message on native Alpha/Linux hardware:

	Segmentation fault (core dumped)

gdb backtrace on native Alpha/Linux hardware:

(gdb) bt
#0  0x00000001201463d8 in _IO_2_1_stderr_ ()
#1  0x00000001200b082c in malloc ()
#2  0x000000012005d344 in __cxa_allocate_exception (thrown_size=128)
   at /user/data/gent/vsc400/vsc40023/tools/crosstool-ng.1.5.0/ 
targets/src/gcc-4.2.4/libstdc++-v3/libsupc++/eh_alloc.cc:104
#3  0x00000001200496b4 in std::__throw_runtime_error (
   __s=<value optimized out>)
   at /user/data/gent/vsc400/vsc40023/tools/crosstool-ng.1.5.0/ 
targets/src/gcc-4.2.4/libstdc++-v3/src/functexcept.cc:84
#4  0x00000001200441fc in std::locale::facet::_S_create_c_locale (
   __cloc=<value optimized out>, __s=<value optimized out>)
   at c++locale.cc:141
#5  0x000000012004bb18 in std::locale::facet::_S_initialize_once ()
   at /user/data/gent/vsc400/vsc40023/tools/crosstool-ng.1.5.0/ 
targets/src/gcc-4.2.4/libstdc++-v3/src/locale.cc:200
#6  0x000000012004bb54 in std::locale::facet::_S_get_c_locale ()
   at /user/data/gent/vsc400/vsc40023/tools/crosstool-ng.1.5.0/ 
targets/src/gcc-4.2.4/libstdc++-v3/src/locale.cc:213
#7  0x0000000120047484 in codecvt (this=0x120149710,
   __refs=<value optimized out>)
   at /user/data/gent/vsc400/vsc40023/tools/crosstool-ng.1.5.0/ 
targets/src/gcc-4.2.4/libstdc++-v3/src/codecvt.cc:44
#8  0x000000012004c6bc in _Impl (this=0x120149268,
   __refs=<value optimized out>)
   at /user/data/gent/vsc400/vsc40023/tools/crosstool-ng.1.5.0/ 
targets/src/gcc-4.2.4/libstdc++-v3/src/locale_init.cc:387
#9  0x000000012004d0f0 in std::locale::_S_initialize_once ()
   at /user/data/gent/vsc400/vsc40023/tools/crosstool-ng.1.5.0/ 
targets/src/gcc-4.2.4/libstdc++-v3/src/locale_init.cc:255
#10 0x000000012004d3f8 in locale (this=0x80)
   at /user/data/gent/vsc400/vsc40023/tools/crosstool-ng.1.5.0/ 
targets/src/gcc-4.2.4/libstdc++-v3/src/locale_init.cc:214
#11 0x00000001200250d4 in basic_streambuf (this=0x120147960)
   at /user/data/gent/vsc400/vsc40023/tools/crosstool-ng.1.5.0/ 
targets/alphaev5-unknown-linux-gnu/build/build-cc/alphaev5-unknown- 
linux-gnu/libstdc++-v3/include/streambuf:462
#12 0x000000012001f2ac in stdio_sync_filebuf (this=0x80,  
__f=0x12005d344)
   at /user/data/gent/vsc400/vsc40023/tools/crosstool-ng.1.5.0/ 
targets/alphaev5-unknown-linux-gnu/build/build-cc/alphaev5-unknown- 
linux-gnu/libstdc++-v3/include/ext/stdio_sync_filebuf.h:72
#13 0x0000000120000ad4 in Init (this=<value optimized out>)
   at /user/data/gent/vsc400/vsc40023/tools/crosstool-ng.1.5.0/ 
targets/src/gcc-4.2.4/libstdc++-v3/src/ios_init.cc:89
#14 0x00000001200006b4 in __static_initialization_and_destruction_0 ()
#15 0x0000000120000718 in global constructors keyed to main ()
#16 0x00000001200f7e38 in __do_global_ctors_aux ()
#17 0x0000000120000240 in _init ()

greetings,

Kenneth


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