145 lines
4.7 KiB
C
145 lines
4.7 KiB
C
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/* Freescale XGATE-specific support for 32-bit ELF
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Copyright 2012 Free Software Foundation, Inc.
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Contributed by Sean Keys (skeys@ipdatasys.com)
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(Heavily copied from the HC11 port by Stephane Carrez (stcarrez@nerim.fr))
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#ifndef _ELF32_XGATE_H
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#define _ELF32_XGATE_H
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#include "elf-bfd.h"
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#include "bfdlink.h"
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#include "elf/xgate.h"
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/* Set and control ELF flags in ELF header. */
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extern bfd_boolean _bfd_xgate_elf_merge_private_bfd_data (bfd*,bfd*);
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extern bfd_boolean _bfd_xgate_elf_set_private_flags (bfd*,flagword);
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extern bfd_boolean _bfd_xgate_elf_print_private_bfd_data (bfd*, void*);
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struct elf32_xgate_stub_hash_entry
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{
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/* Base hash table entry structure. */
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struct bfd_hash_entry root;
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/* The stub section. */
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asection *stub_sec;
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/* Offset within stub_sec of the beginning of this stub. */
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bfd_vma stub_offset;
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/* Given the symbol's value and its section we can determine its final
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value when building the stubs (so the stub knows where to jump. */
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bfd_vma target_value;
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asection *target_section;
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};
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struct xgate_page_info
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{
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bfd_vma bank_virtual;
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bfd_vma bank_physical;
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bfd_vma bank_physical_end;
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bfd_vma bank_mask;
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bfd_vma bank_size;
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int bank_shift;
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int bank_param_initialized;
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bfd_vma trampoline_addr;
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};
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struct xgate_elf_link_hash_table
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{
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struct elf_link_hash_table root;
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struct xgate_page_info pinfo;
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/* The stub hash table. */
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struct bfd_hash_table* stub_hash_table;
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/* Linker stub bfd. */
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bfd *stub_bfd;
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asection* stub_section;
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asection* tramp_section;
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/* Linker call-backs. */
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asection * (*add_stub_section) (const char *, asection *);
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/* Assorted information used by elf32_hppa_size_stubs. */
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unsigned int bfd_count;
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int top_index;
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asection ** input_list;
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/* Small local sym cache. */
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struct sym_cache sym_cache;
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bfd_boolean (*size_one_stub) (struct bfd_hash_entry*, void*);
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bfd_boolean (*build_one_stub) (struct bfd_hash_entry*, void*);
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};
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/* Get the XGate ELF linker hash table from a link_info structure. */
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#define xgate_elf_hash_table(p) \
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((struct xgate_elf_link_hash_table *) ((p)->hash))
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/* Create a XGATE ELF linker hash table. */
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extern struct xgate_elf_link_hash_table* xgate_elf_hash_table_create
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(bfd *);
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extern void xgate_elf_bfd_link_hash_table_free (struct bfd_link_hash_table *);
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extern void xgate_elf_get_bank_parameters (struct bfd_link_info *);
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/* Return 1 if the address is in banked memory.
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This can be applied to a virtual address and to a physical address. */
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extern int xgate_addr_is_banked (struct xgate_page_info *, bfd_vma);
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/* Return the physical address seen by the processor, taking
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into account banked memory. */
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extern bfd_vma xgate_phys_addr (struct xgate_page_info *, bfd_vma);
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/* Return the page number corresponding to an address in banked memory. */
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extern bfd_vma xgate_phys_page (struct xgate_page_info *, bfd_vma);
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bfd_reloc_status_type xgate_elf_ignore_reloc
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(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
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bfd_reloc_status_type xgate_elf_special_reloc
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(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
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bfd_boolean elf32_xgate_check_relocs
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(bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
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bfd_boolean elf32_xgate_relocate_section
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(bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
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bfd_boolean elf32_xgate_add_symbol_hook
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(bfd *, struct bfd_link_info *, Elf_Internal_Sym *, const char **,
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flagword *, asection **, bfd_vma *);
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/* Tweak the OSABI field of the elf header. */
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extern void elf32_xgate_post_process_headers (bfd *, struct bfd_link_info *);
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int elf32_xgate_setup_section_lists (bfd *, struct bfd_link_info *);
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bfd_boolean elf32_xgate_size_stubs
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(bfd *, bfd *, struct bfd_link_info *,
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asection * (*) (const char *, asection *));
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bfd_boolean elf32_xgate_build_stubs (bfd * abfd, struct bfd_link_info *);
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#endif /* _ELF32_XGATE_H */
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