aboutsummaryrefslogtreecommitdiff
path: root/bfd/elf32-xgate.h
diff options
context:
space:
mode:
authorNick Clifton <nickc@redhat.com>2012-05-03 13:04:57 +0000
committerNick Clifton <nickc@redhat.com>2012-05-03 13:04:57 +0000
commita8acc5fb18af9d4b0da318218680534414325e13 (patch)
treeddfb438efe30f3cbb98fe76cf5ff105713254d7d /bfd/elf32-xgate.h
parentfec1623758b5b14d80c4a61e82568c65b71aa6d7 (diff)
downloadgdb-a8acc5fb18af9d4b0da318218680534414325e13.zip
gdb-a8acc5fb18af9d4b0da318218680534414325e13.tar.gz
gdb-a8acc5fb18af9d4b0da318218680534414325e13.tar.bz2
Add support for Motorola XGATE embedded CPU
Diffstat (limited to 'bfd/elf32-xgate.h')
-rw-r--r--bfd/elf32-xgate.h144
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 */