-frepo option

-frepo option

[andy]

Sorry if it's not exactly a cross-compile issue

Here's a simplle program:
#include <string>
#include <stdio.h>
#include <vector>

typedef struct my_struct
{
   int a;
   short b;
}MyStruct;

vector<MyStruct> myVec;

void test();
int main ()

{
        test();
        return 0;
}


void test()
{
        MyStruct blah;

        try{
               myVec.push_back(blah);
              throw(1);
        }
        catch(...){

        }
}

I'm compiling it with the -frepo option ( 2.95.1)
#g++ -frepo -o test.o -c test.cpp
#g++ -O2 -o testapp test.o
collect: recompiling test.cpp
collect: relinking
test.o: In function `vector<my_struct, allocator<my_struct>
>::_M_insert_aux(my_struct *, my_struct const &)':
test.o(.text+0x620): undefined reference to
`__uninitialized_copy_aux__H2ZP9my_structZP9my_struct_X01X01X11G12__false_type_X
11'
test.o(.text+0x69c): undefined reference to
`__uninitialized_copy_aux__H2ZP9my_structZP9my_struct_X01X01X11G12__false_type_X
11'
collect2: ld returned 1 exit status

What's the right way to use this option ?
Is there any advantage of using it ( in terms of the code size)

TIA
Andy



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Re: -frepo option

[Alexandre Oliva]

On Dec  6, 2000, andy@softbookpress.com wrote:

> I'm compiling it with the -frepo option ( 2.95.1)
> test.o(.text+0x620): undefined reference to
> `__uninitialized_copy_aux__H2ZP9my_structZP9my_struct_X01X01X11G12__false_type_X11'

Try GCC 2.95.2.  I seem to recall some bugs in the implementation of
-frepo that may have been fixed in the latest release.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist    *Please* write to mailing lists, not to me

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Re: -frepo option

[andy]

I just rebuilt and  installed gcc 2.95.2 and it still does not work!
I'm on arm-linux (armv4l unknown).
However I tried it under OpenBSD 2.7  gcc 2.95.2 and it does work
So, what do I need to do to make it work  on the arm linux ?

TIA Andy


>On Dec  6, 2000, andy@softbookpress.com wrote:
>
>> I'm compiling it with the -frepo option ( 2.95.1)
>> test.o(.text+0x620): undefined reference to
>>
>>`__uninitialized_copy_aux__H2ZP9my_structZP9my_struct_X01X01X11G12__false_type_X
>>11'
>
>Try GCC 2.95.2.  I seem to recall some bugs in the implementation of
>-frepo that may have been fixed in the latest release.
>
>--
>Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
>Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
>CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
>Free Software Evangelist    *Please* write to mailing lists, not to me




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Re: -frepo option

[andy]

Aargh! Compiler bug.
I applied the following fix
http://gcc.gnu.org/ml/gcc-patches/1999-10n/msg00840.html
- it works!

Andy


>I just rebuilt and  installed gcc 2.95.2 and it still does not work!
>I'm on arm-linux (armv4l unknown).
>However I tried it under OpenBSD 2.7  gcc 2.95.2 and it does work
>So, what do I need to do to make it work  on the arm linux ?
>
>TIA Andy
>
>
>>On Dec  6, 2000, andy@softbookpress.com wrote:
>>
>>> I'm compiling it with the -frepo option ( 2.95.1)
>>> test.o(.text+0x620): undefined reference to
>>>
>>>`__uninitialized_copy_aux__H2ZP9my_structZP9my_struct_X01X01X11G12__false_typ
>>>e_X
>>>11'
>>
>>Try GCC 2.95.2.  I seem to recall some bugs in the implementation of
>>-frepo that may have been fixed in the latest release.
>>
>>--
>>Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
>>Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
>>CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
>>Free Software Evangelist    *Please* write to mailing lists, not to me
>
>
>
>
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