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/* Freescale XGATE-specific support for 32-bit ELF
Copyright 2012 Free Software Foundation, Inc.
Contributed by Sean Keys (skeys@ipdatasys.com)
(Heavily copied from the HC11 port by Stephane Carrez (stcarrez@nerim.fr))
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 3 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.
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., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#ifndef _ELF32_XGATE_H
#define _ELF32_XGATE_H
#include "elf-bfd.h"
#include "bfdlink.h"
#include "elf/xgate.h"
/* Set and control ELF flags in ELF header. */
extern bfd_boolean _bfd_xgate_elf_merge_private_bfd_data (bfd*,bfd*);
extern bfd_boolean _bfd_xgate_elf_set_private_flags (bfd*,flagword);
extern bfd_boolean _bfd_xgate_elf_print_private_bfd_data (bfd*, void*);
struct elf32_xgate_stub_hash_entry
{
/* Base hash table entry structure. */
struct bfd_hash_entry root;
/* The stub section. */
asection *stub_sec;
/* Offset within stub_sec of the beginning of this stub. */
bfd_vma stub_offset;
/* Given the symbol's value and its section we can determine its final
value when building the stubs (so the stub knows where to jump. */
bfd_vma target_value;
asection *target_section;
};
struct xgate_page_info
{
bfd_vma bank_virtual;
bfd_vma bank_physical;
bfd_vma bank_physical_end;
bfd_vma bank_mask;
bfd_vma bank_size;
int bank_shift;
int bank_param_initialized;
bfd_vma trampoline_addr;
};
struct xgate_elf_link_hash_table
{
struct elf_link_hash_table root;
struct xgate_page_info pinfo;
/* The stub hash table. */
struct bfd_hash_table* stub_hash_table;
/* Linker stub bfd. */
bfd *stub_bfd;
asection* stub_section;
asection* tramp_section;
/* Linker call-backs. */
asection * (*add_stub_section) (const char *, asection *);
/* Assorted information used by elf32_hppa_size_stubs. */
unsigned int bfd_count;
int top_index;
asection ** input_list;
/* Small local sym cache. */
struct sym_cache sym_cache;
bfd_boolean (*size_one_stub) (struct bfd_hash_entry*, void*);
bfd_boolean (*build_one_stub) (struct bfd_hash_entry*, void*);
};
/* Get the XGate ELF linker hash table from a link_info structure. */
#define xgate_elf_hash_table(p) \
((struct xgate_elf_link_hash_table *) ((p)->hash))
/* Create a XGATE ELF linker hash table. */
extern struct xgate_elf_link_hash_table* xgate_elf_hash_table_create
(bfd *);
extern void xgate_elf_bfd_link_hash_table_free (struct bfd_link_hash_table *);
extern void xgate_elf_get_bank_parameters (struct bfd_link_info *);
/* Return 1 if the address is in banked memory.
This can be applied to a virtual address and to a physical address. */
extern int xgate_addr_is_banked (struct xgate_page_info *, bfd_vma);
/* Return the physical address seen by the processor, taking
into account banked memory. */
extern bfd_vma xgate_phys_addr (struct xgate_page_info *, bfd_vma);
/* Return the page number corresponding to an address in banked memory. */
extern bfd_vma xgate_phys_page (struct xgate_page_info *, bfd_vma);
bfd_reloc_status_type xgate_elf_ignore_reloc
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
bfd_reloc_status_type xgate_elf_special_reloc
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
bfd_boolean elf32_xgate_check_relocs
(bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
bfd_boolean elf32_xgate_relocate_section
(bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
bfd_boolean elf32_xgate_add_symbol_hook
(bfd *, struct bfd_link_info *, Elf_Internal_Sym *, const char **,
flagword *, asection **, bfd_vma *);
/* Tweak the OSABI field of the elf header. */
extern void elf32_xgate_post_process_headers (bfd *, struct bfd_link_info *);
int elf32_xgate_setup_section_lists (bfd *, struct bfd_link_info *);
bfd_boolean elf32_xgate_size_stubs
(bfd *, bfd *, struct bfd_link_info *,
asection * (*) (const char *, asection *));
bfd_boolean elf32_xgate_build_stubs (bfd * abfd, struct bfd_link_info *);
#endif /* _ELF32_XGATE_H */
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