ld not picking up .bss sections from Digital Fortran

ld not picking up .bss sections from Digital Fortran

[Joe Sirott]

Hi,

I'm trying to link code generated by Digital Fortran with GNU C code
(under cygwin B20.1). The code crashes with segmentation faults. When I
run the code under gdb, it turns out that static variables in the C code
are pointing to the same memory areas as the Fortran local variables. It
appears that a .bss section that the Fortran compiler sets aside for
local variables is not being picked up by ld. It doesn't appear in the
link map, but a dumpbin of the section headers of the Fortran object
file looks like this:

> SECTION HEADER #3
>     .bss name
>        0 physical address
>        0 virtual address
>      808 size of raw data
>        0 file pointer to raw data
>        0 file pointer to relocation table
>        0 file pointer to line numbers
>        0 number of relocations
>        0 number of line numbers
> C0400080 flags
>          Uninitialized Data
>          8 byte align
>          Read Write

Any ideas why this doesn't work?
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Re: ld not picking up .bss sections from Digital Fortran

[Suhaib M. Siddiqi]

You are out of luck here!!!
You are trying something which cannot be done at present.
 DVF stuff is not compatible with
GNU and/or Cygnus.

Suhaib





----- Original Message -----
From: Joe Sirott <sirott@pmel.noaa.gov>
To: <gnu-win32@cygnus.com>
Sent: Thursday, January 28, 1999 4:36 PM
Subject: ld not picking up .bss sections from Digital Fortran


>Hi,
>
>I'm trying to link code generated by Digital Fortran with GNU C code
>(under cygwin B20.1). The code crashes with segmentation faults. When I
>run the code under gdb, it turns out that static variables in the C
code
>are pointing to the same memory areas as the Fortran local variables.
It
>appears that a .bss section that the Fortran compiler sets aside for
>local variables is not being picked up by ld. It doesn't appear in the
>link map, but a dumpbin of the section headers of the Fortran object
>file looks like this:
>
>> SECTION HEADER #3
>>     .bss name
>>        0 physical address
>>        0 virtual address
>>      808 size of raw data
>>        0 file pointer to raw data
>>        0 file pointer to relocation table
>>        0 file pointer to line numbers
>>        0 number of relocations
>>        0 number of line numbers
>> C0400080 flags
>>          Uninitialized Data
>>          8 byte align
>>          Read Write
>
>Any ideas why this doesn't work?
>-
>For help on using this list (especially unsubscribing), send a message
to
>"gnu-win32-request@cygnus.com" with one line of text: "help".
>


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