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Add new bitfield 'want_p_paddr_set_to_zero'.

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Set this field for HPUX IA64 port.
Test this field when setting p_paddr.
This commit is contained in:
Nick Clifton 2002-07-23 11:15:06 +00:00
parent 88ff637d20
commit 5e8d754953
5 changed files with 126 additions and 102 deletions
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9
bfd/ChangeLog
View file

@ -1,3 +1,12 @@
2002-07-23 Nick Clifton <nickc@redhat.com>
* elf-bfd.h (struct elf_backend_data): Add new bitfield
'want_p_paddr_set_to_zero'.
* elfxx-target.h: Set default value for want_p_paddr_set_to_zero
to false;
* elfxx-ia64.c: Set want_p_paddr_set_zero for HPUX target.
* elf.c (copy_private_bfd_data): Test want_p_paddr_set_zero.
2002-07-23 Gabor Keresztfalvi <keresztg@mail.com>
* nlmcode.h (nlm_swap_auxiliary_headers_out): Swapped the order of

28
bfd/elf-bfd.h
View file

@ -3,21 +3,21 @@
2002 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _LIBELF_H_
#define _LIBELF_H_ 1
@ -859,6 +859,10 @@ struct elf_backend_data
unsigned can_refcount : 1;
unsigned want_got_sym : 1;
unsigned want_dynbss : 1;
/* Targets which do not support physical addressing often require
that the p_paddr field in the section header to be set to zero.
This field indicates whether this behavior is required. */
unsigned want_p_paddr_set_to_zero : 1;
};
/* Information stored for each BFD section in an ELF file. This

34
bfd/elf.c
View file

@ -2,21 +2,21 @@
Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* SECTION
@ -4813,9 +4813,10 @@ copy_private_bfd_data (ibfd, obfd)
/* The Solaris native linker always sets p_paddr to 0.
We try to catch that case here, and set it to the
correct value. */
correct value. Note - some backends require that
p_paddr be left as zero. */
if (segment->p_paddr == 0
&& segment->p_vaddr != 0
&& (! bed->want_p_paddr_set_to_zero)
&& isec == 0
&& output_section->lma != 0
&& (output_section->vma == (segment->p_vaddr
@ -4832,7 +4833,10 @@ copy_private_bfd_data (ibfd, obfd)
LMA address of the output section. */
if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr)
|| IS_CONTAINED_BY_FILEPOS (section, segment, bed)
|| IS_COREFILE_NOTE (segment, section))
|| IS_COREFILE_NOTE (segment, section)
|| (bed->want_p_paddr_set_to_zero &&
IS_CONTAINED_BY_VMA (output_section, segment))
)
{
if (matching_lma == 0)
matching_lma = output_section->lma;

127
bfd/elfxx-ia64.c
View file

@ -2,21 +2,21 @@
Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of BFD, the Binary File Descriptor library.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
@ -25,35 +25,33 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "opcode/ia64.h"
#include "elf/ia64.h"
/*
* THE RULES for all the stuff the linker creates --
*
* GOT Entries created in response to LTOFF or LTOFF_FPTR
* relocations. Dynamic relocs created for dynamic
* symbols in an application; REL relocs for locals
* in a shared library.
*
* FPTR The canonical function descriptor. Created for local
* symbols in applications. Descriptors for dynamic symbols
* and local symbols in shared libraries are created by
* ld.so. Thus there are no dynamic relocs against these
* objects. The FPTR relocs for such _are_ passed through
* to the dynamic relocation tables.
*
* FULL_PLT Created for a PCREL21B relocation against a dynamic symbol.
* Requires the creation of a PLTOFF entry. This does not
* require any dynamic relocations.
*
* PLTOFF Created by PLTOFF relocations. For local symbols, this
* is an alternate function descriptor, and in shared libraries
* requires two REL relocations. Note that this cannot be
* transformed into an FPTR relocation, since it must be in
* range of the GP. For dynamic symbols, this is a function
* descriptor for a MIN_PLT entry, and requires one IPLT reloc.
*
* MIN_PLT Created by PLTOFF entries against dynamic symbols. This
* does not reqire dynamic relocations.
*/
/* THE RULES for all the stuff the linker creates --
GOT Entries created in response to LTOFF or LTOFF_FPTR
relocations. Dynamic relocs created for dynamic
symbols in an application; REL relocs for locals
in a shared library.
FPTR The canonical function descriptor. Created for local
symbols in applications. Descriptors for dynamic symbols
and local symbols in shared libraries are created by
ld.so. Thus there are no dynamic relocs against these
objects. The FPTR relocs for such _are_ passed through
to the dynamic relocation tables.
FULL_PLT Created for a PCREL21B relocation against a dynamic symbol.
Requires the creation of a PLTOFF entry. This does not
require any dynamic relocations.
PLTOFF Created by PLTOFF relocations. For local symbols, this
is an alternate function descriptor, and in shared libraries
requires two REL relocations. Note that this cannot be
transformed into an FPTR relocation, since it must be in
range of the GP. For dynamic symbols, this is a function
descriptor for a MIN_PLT entry, and requires one IPLT reloc.
MIN_PLT Created by PLTOFF entries against dynamic symbols. This
does not reqire dynamic relocations. */
#define USE_RELA /* we want RELA relocs, not REL */
@ -140,7 +138,7 @@ struct elfNN_ia64_link_hash_entry
struct elfNN_ia64_link_hash_table
{
/* The main hash table */
/* The main hash table. */
struct elf_link_hash_table root;
asection *got_sec; /* the linkage table section (or NULL) */
@ -327,7 +325,7 @@ static void elfNN_hpux_post_process_headers
boolean elfNN_hpux_backend_section_from_bfd_section
PARAMS ((bfd *abfd, asection *sec, int *retval));
/* ia64-specific relocation */
/* ia64-specific relocation. */
/* Perform a relocation. Not much to do here as all the hard work is
done in elfNN_ia64_final_link_relocate. */
@ -461,7 +459,7 @@ static unsigned char elf_code_to_howto_index[R_IA64_MAX_RELOC_CODE + 1];
/* Given a BFD reloc type, return the matching HOWTO structure. */
static reloc_howto_type*
static reloc_howto_type *
lookup_howto (rtype)
unsigned int rtype;
{
@ -1087,24 +1085,22 @@ elfNN_ia64_fake_sections (abfd, hdr, sec)
else if (strcmp (name, ".HP.opt_annot") == 0)
hdr->sh_type = SHT_IA_64_HP_OPT_ANOT;
else if (strcmp (name, ".reloc") == 0)
/*
* This is an ugly, but unfortunately necessary hack that is
* needed when producing EFI binaries on IA-64. It tells
* elf.c:elf_fake_sections() not to consider ".reloc" as a section
* containing ELF relocation info. We need this hack in order to
* be able to generate ELF binaries that can be translated into
* EFI applications (which are essentially COFF objects). Those
* files contain a COFF ".reloc" section inside an ELFNN object,
* which would normally cause BFD to segfault because it would
* attempt to interpret this section as containing relocation
* entries for section "oc". With this hack enabled, ".reloc"
* will be treated as a normal data section, which will avoid the
* segfault. However, you won't be able to create an ELFNN binary
* with a section named "oc" that needs relocations, but that's
* the kind of ugly side-effects you get when detecting section
* types based on their names... In practice, this limitation is
* unlikely to bite.
*/
/* This is an ugly, but unfortunately necessary hack that is
needed when producing EFI binaries on IA-64. It tells
elf.c:elf_fake_sections() not to consider ".reloc" as a section
containing ELF relocation info. We need this hack in order to
be able to generate ELF binaries that can be translated into
EFI applications (which are essentially COFF objects). Those
files contain a COFF ".reloc" section inside an ELFNN object,
which would normally cause BFD to segfault because it would
attempt to interpret this section as containing relocation
entries for section "oc". With this hack enabled, ".reloc"
will be treated as a normal data section, which will avoid the
segfault. However, you won't be able to create an ELFNN binary
with a section named "oc" that needs relocations, but that's
the kind of ugly side-effects you get when detecting section
types based on their names... In practice, this limitation is
unlikely to bite. */
hdr->sh_type = SHT_PROGBITS;
if (sec->flags & SEC_SMALL_DATA)
@ -1510,6 +1506,8 @@ elfNN_ia64_dynamic_symbol_p (h, info)
case STV_INTERNAL:
case STV_HIDDEN:
return false;
default:
break;
}
if (h->root.type == bfd_link_hash_undefweak
@ -4796,6 +4794,9 @@ elfNN_hpux_backend_section_from_bfd_section (abfd, sec, retval)
#undef elf_backend_section_from_bfd_section
#define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
#undef elf_backend_want_p_paddr_set_to_zero
#define elf_backend_want_p_paddr_set_to_zero 1
#undef ELF_MAXPAGESIZE
#define ELF_MAXPAGESIZE 0x1000 /* 1K */
@ -4803,3 +4804,5 @@ elfNN_hpux_backend_section_from_bfd_section (abfd, sec, retval)
#define elfNN_bed elfNN_ia64_hpux_bed
#include "elfNN-target.h"
#undef elf_backend_want_p_paddr_set_to_zero

30
bfd/elfxx-target.h
View file

@ -2,21 +2,21 @@
Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* This structure contains everything that BFD knows about a target.
It includes things like its byte order, name, what routines to call
@ -89,6 +89,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef elf_backend_want_dynbss
#define elf_backend_want_dynbss 1
#endif
#ifndef elf_backend_want_p_paddr_set_to_zero
#define elf_backend_want_p_paddr_set_to_zero 0
#endif
#define bfd_elfNN_bfd_debug_info_start bfd_void
#define bfd_elfNN_bfd_debug_info_end bfd_void
@ -519,7 +522,8 @@ static const struct elf_backend_data elfNN_bed =
elf_backend_can_gc_sections,
elf_backend_can_refcount,
elf_backend_want_got_sym,
elf_backend_want_dynbss
elf_backend_want_dynbss,
elf_backend_want_p_paddr_set_to_zero
};
#endif