gcc binary format output

Kai Ruottu karuottu@mbnet.fi
Tue Jul 18 12:25:00 GMT 2006
Kai Ruottu kirjoitti:
> Victor Roman Archidona kirjoitti:
>> Thanks for your feedback Kai. In the binutils mailing list has been
>> sent a patch that fixes the problem. The URL for anyone interested in
>> it is:
>>
>> http://www.sourceware.org/ml/binutils/2006-07/msg00192.html
>>   
> lets see what the 'x86_64-freebsd6.1' ones will do now.
The given patches weren't enough :-(   The resulted GNU linker complained
about not finding the output format etc.  A quick "how these things were 
done
in 'alpha', 'i386' etc." comparison revealed that also the 'ld/emulparams'
directory required the following patch in the current 
'binutils-2.17.50.0.3' :

---------------- clip ----------------------------
*** elf_x86_64_fbsd.sh.orig     Thu Mar  7 21:52:39 2002
--- elf_x86_64_fbsd.sh  Tue Jul 18 15:06:58 2006
***************
*** 1,2 ****
--- 1,3 ----
  . ${srcdir}/emulparams/elf_x86_64.sh
  . ${srcdir}/emulparams/elf_fbsd.sh
+ OUTPUT_FORMAT="elf64-x86-64-freebsd"
---------------- clip ----------------------------


After adding this the produced binutils gave right labeled executables and
more importantly the crosscompilers to the 'x86_64-freebsd6.1' target
could be built, giving seemingly OK shared libraries with the following:

kai@Dell:/data1/home/src/gcc-4.0.3/build/gcc> readelf -h libgcc_s.so.1
ELF Header:
  Magic:   7f 45 4c 46 02 01 01 09 00 00 00 00 00 00 00 00
  Class:                             ELF64
  Data:                              2's complement, little endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - FreeBSD
  ABI Version:                       0
  Type:                              DYN (Shared object file)
  Machine:                           Advanced Micro Devices X86-64
  Version:                           0x1


output got via the 'readelf -h'...



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