RFC: TLS improvements for IA32 and AMD64/EM64T

[Andreas Jaeger]

Alexandre Oliva <aoliva@redhat.com> writes:

> Index: include/elf/x86-64.h
> ===================================================================
> RCS file: /cvs/uberbaum/./include/elf/x86-64.h,v
> retrieving revision 1.8
> diff -u -p -r1.8 x86-64.h
> --- include/elf/x86-64.h 25 Jul 2005 15:41:07 -0000 1.8
> +++ include/elf/x86-64.h 15 Sep 2005 22:39:19 -0000
> @@ -1,5 +1,5 @@
>  /* x86_64 ELF support for BFD.
> -   Copyright (C) 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
> +   Copyright (C) 2000, 2001, 2002, 2004, 2005 Free Software Foundation, Inc.
>     Contributed by Jan Hubicka <jh@suse.cz>
>  
>     This file is part of BFD, the Binary File Descriptor library.
> @@ -53,6 +53,13 @@ START_RELOC_NUMBERS (elf_x86_64_reloc_ty
>       RELOC_NUMBER (R_X86_64_GOTOFF64, 25)     /* 64 bit offset to GOT */
>       RELOC_NUMBER (R_X86_64_GOTPC32,  26)     /* 32 bit signed pc relative
>                                                   offset to GOT */
> +     RELOC_NUMBER (R_X86_64_GOTPC32_TLSDESC, 27)
> +					      /* 32 bit signed pc relative
> +						 offset to TLS descriptor
> +						 in the GOT.  */
> +     RELOC_NUMBER (R_X86_64_TLSDESC, 28)      /* 2x64-bit TLS descriptor.  */
> +     RELOC_NUMBER (R_X86_64_TLSDESC_CALL, 29) /* Relaxable call through TLS
> +						 descriptor.  */

Please check the current x86-64 ABI, the relocations until 31 are all
taken and reserved, you cannot use the above ones,

Andreas
-- 
 Andreas Jaeger, aj@suse.de, http://www.suse.de/~aj
  SUSE Linux Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
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