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Diffstat (limited to 'bfd/elf32-xgate.h')
| -rw-r--r-- | bfd/elf32-xgate.h | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/bfd/elf32-xgate.h b/bfd/elf32-xgate.h new file mode 100644 index 0000000..7ecdf12 --- /dev/null +++ b/bfd/elf32-xgate.h @@ -0,0 +1,144 @@ +/* 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 */ |