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From "Martin Sebor (JIRA)" <j...@apache.org>
Subject [jira] Created: (STDCXX-162) [x86_64] atomic operations disabled
Date Mon, 06 Mar 2006 20:14:27 GMT
[x86_64] atomic operations disabled
-----------------------------------

         Key: STDCXX-162
         URL: http://issues.apache.org/jira/browse/STDCXX-162
     Project: C++ Standard Library
        Type: Improvement
  Components: Configuration  
    Versions: 4.1.3    
 Environment: x86_64
    Reporter: Martin Sebor
    Priority: Critical
     Fix For: 4.1.4


Atomic operations are disabled on AMD64 and EM64T.

$ uname -srp && cat t.cpp && make t && LD_LIBRARY_PATH=../lib:$LD_LIBRARY_PATH
./t
Linux 2.6.9-22.ELsmp x86_64
#include <cassert>
#include <string>
#include <pthread.h>

int main ()
{
    typedef std::char_traits<char>                      Traits;
    typedef std::allocator<char>                        Allocator;
    typedef __rw::__string_ref<char, Traits, Allocator> strref;

    struct SmallRef {
        int                    ref_count;
        std::string::size_type capacity;
        std::string::size_type size;
    };

    struct LargeRef {
        pthread_mutex_t        mutex;
        int                    ref_count;
        std::string::size_type capacity;
        std::string::size_type size;
    };

    assert (sizeof (strref) <= sizeof (SmallRef));
    assert (sizeof (strref) <  sizeof (LargeRef));
}
gcc -c -I/build/sebor/dev/stdlib/include/ansi -D_RWSTDDEBUG   -pthread -D_RWSTD_USE_CONFIG
-I/build/sebor/gcc-3.4.4-15D/include -I/build/sebor/dev/stdlib/include -I/build/sebor/dev/stdlib/../rwtest
-I/build/sebor/dev/stdlib/../rwtest/include -I/build/sebor/dev/stdlib/tests/include  -pedantic
-nostdinc++ -g  -Wall -W -Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long -Wcast-align
 t.cpp
gcc t.o -o t -L/build/sebor/gcc-3.4.4-15D/rwtest -lrwtest15d -pthread -L/build/sebor/gcc-3.4.4-15D/lib
-lstd15d  -lsupc++ -lm
t: t.cpp:24: int main(): Assertion `sizeof (strref) <= sizeof (SmallRef)' failed.
Aborted


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