#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
-#include "elf32-xgate.h"
#include "elf/xgate.h"
#include "opcode/xgate.h"
#include "libiberty.h"
-/* Relocation functions. */
-static reloc_howto_type *
-bfd_elf32_bfd_reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
-static reloc_howto_type *
-bfd_elf32_bfd_reloc_name_lookup (bfd *, const char *);
-static bfd_boolean
-xgate_info_to_howto_rel (bfd *, arelent *, Elf_Internal_Rela *);
-static bfd_boolean
-xgate_elf_set_mach_from_flags (bfd *);
-static struct bfd_hash_entry *
-stub_hash_newfunc (struct bfd_hash_entry *, struct bfd_hash_table *,
- const char *);
-static struct bfd_link_hash_table*
-xgate_elf_bfd_link_hash_table_create (bfd *);
+/* Forward declarations. */
+static bfd_reloc_status_type xgate_elf_ignore_reloc
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+static bfd_reloc_status_type xgate_elf_special_reloc
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
/* Use REL instead of RELA to save space */
#define USE_REL 1
return TRUE;
}
-/* Destroy an XGATE ELF linker hash table. */
-
-static void
-xgate_elf_bfd_link_hash_table_free (bfd *obfd)
-{
- struct xgate_elf_link_hash_table *ret =
- (struct xgate_elf_link_hash_table *) obfd->link.hash;
-
- bfd_hash_table_free (ret->stub_hash_table);
- free (ret->stub_hash_table);
- _bfd_elf_link_hash_table_free (obfd);
-}
-
-/* Create an XGATE ELF linker hash table. */
-
-static struct bfd_link_hash_table*
-xgate_elf_bfd_link_hash_table_create (bfd *abfd)
-{
- struct xgate_elf_link_hash_table *ret;
- bfd_size_type amt = sizeof(struct xgate_elf_link_hash_table);
-
- ret = (struct xgate_elf_link_hash_table *) bfd_zmalloc (amt);
- if (ret == (struct xgate_elf_link_hash_table *) NULL)
- return NULL;
-
- if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
- _bfd_elf_link_hash_newfunc, sizeof(struct elf_link_hash_entry),
- XGATE_ELF_DATA))
- {
- free (ret);
- return NULL;
- }
-
- /* Init the stub hash table too. */
- amt = sizeof(struct bfd_hash_table);
- ret->stub_hash_table = (struct bfd_hash_table*) bfd_zmalloc (amt);
- if (ret->stub_hash_table == NULL)
- {
- _bfd_elf_link_hash_table_free (abfd);
- return NULL;
- }
-
- if (!bfd_hash_table_init (ret->stub_hash_table, stub_hash_newfunc,
- sizeof(struct elf32_xgate_stub_hash_entry)))
- {
- free (ret->stub_hash_table);
- _bfd_elf_link_hash_table_free (abfd);
- return NULL;
- }
- ret->root.root.hash_table_free = xgate_elf_bfd_link_hash_table_free;
-
- return &ret->root.root;
-}
-
-static bfd_boolean
-xgate_elf_set_mach_from_flags (bfd *abfd ATTRIBUTE_UNUSED)
-{
- return TRUE;
-}
-
/* Specific sections:
- The .page0 is a data section that is mapped in [0x0000..0x00FF].
Page0 accesses are faster on the M68HC12.
{ NULL, 0, 0, 0, 0 }
};
-struct xgate_scan_param
-{
- struct xgate_page_info* pinfo;
- bfd_boolean use_memory_banks;
-};
-
-/* Assorted hash table functions. */
+/* Hook called when reading symbols. */
-/* Initialize an entry in the stub hash table. */
-
-static struct bfd_hash_entry *
-stub_hash_newfunc (struct bfd_hash_entry *entry,
- struct bfd_hash_table *table ATTRIBUTE_UNUSED,
- const char *string ATTRIBUTE_UNUSED)
-{
- return entry;
-}
-
-/* Hook called by the linker routine which adds symbols from an object
- file. */
-
-bfd_boolean
-elf32_xgate_add_symbol_hook (bfd *abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- Elf_Internal_Sym *sym,
- const char **namep ATTRIBUTE_UNUSED,
- flagword *flagsp ATTRIBUTE_UNUSED,
- asection **secp ATTRIBUTE_UNUSED,
- bfd_vma *valp ATTRIBUTE_UNUSED)
-{
- /* For some reason the st_target_internal value is not retained
- after xgate_frob_symbol is called, hence this temp hack. */
- sym->st_target_internal = 1;
- return TRUE;
-}
-
-/* External entry points for sizing and building linker stubs. */
-
-/* Set up various things so that we can make a list of input sections
- for each output section included in the link. Returns -1 on error,
- 0 when no stubs will be needed, and 1 on success. */
-
-int
-elf32_xgate_setup_section_lists (bfd *output_bfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED)
-{
- return 1;
-}
-
-/* Determine and set the size of the stub section for a final link.
- The basic idea here is to examine all the relocations looking for
- PC-relative calls to a target that is unreachable with any "9-bit PC-REL"
- instruction. */
-
-bfd_boolean
-elf32_xgate_size_stubs (bfd *output_bfd ATTRIBUTE_UNUSED,
- bfd *stub_bfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- asection * (*add_stub_section) (const char*, asection*) ATTRIBUTE_UNUSED)
-{
- return FALSE;
-}
-
-/* Build all the stubs associated with the current output file. The
- stubs are kept in a hash table attached to the main linker hash
- table. This function is called via xgateelf_finish in the
- linker. */
-
-bfd_boolean
-elf32_xgate_build_stubs (bfd *abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED)
-{
- return TRUE;
-}
-
-void
-xgate_elf_get_bank_parameters (struct bfd_link_info *info ATTRIBUTE_UNUSED)
+static void
+elf32_xgate_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
+ asymbol *sym)
{
- return;
+ /* Mark xgate symbols. */
+ ((elf_symbol_type *) sym)->internal_elf_sym.st_target_internal = 1;
}
/* This function is used for relocs which are only used for relaxing,
which the linker should otherwise ignore. */
-bfd_reloc_status_type
+static bfd_reloc_status_type
xgate_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED,
arelent *reloc_entry,
asymbol *symbol ATTRIBUTE_UNUSED,
return bfd_reloc_ok;
}
-bfd_reloc_status_type
+static bfd_reloc_status_type
xgate_elf_special_reloc (bfd *abfd ATTRIBUTE_UNUSED,
arelent *reloc_entry ATTRIBUTE_UNUSED,
asymbol *symbol ATTRIBUTE_UNUSED,
abort ();
}
-/* Look through the relocs for a section during the first phase.
- Since we don't do .gots or .plts, we just need to consider the
- virtual table relocs for gc. */
-
-bfd_boolean
-elf32_xgate_check_relocs (bfd *abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- asection *sec ATTRIBUTE_UNUSED,
- const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
-{
- return TRUE;
-}
-
-/* Relocate a XGATE/S12x ELF section. */
-
-bfd_boolean
-elf32_xgate_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- bfd *input_bfd ATTRIBUTE_UNUSED,
- asection *input_section ATTRIBUTE_UNUSED,
- bfd_byte *contents ATTRIBUTE_UNUSED,
- Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED,
- Elf_Internal_Sym *local_syms ATTRIBUTE_UNUSED,
- asection **local_sections ATTRIBUTE_UNUSED)
-{
- return TRUE;
-}
-
-/* Set and control ELF flags in ELF header. */
-
-bfd_boolean
-_bfd_xgate_elf_set_private_flags (bfd *abfd ATTRIBUTE_UNUSED,
- flagword flags ATTRIBUTE_UNUSED)
-{
- return TRUE;
-}
-
-bfd_boolean
+static bfd_boolean
_bfd_xgate_elf_print_private_bfd_data (bfd *abfd, void *ptr)
{
FILE *file = (FILE *) ptr;
return TRUE;
}
-void
-elf32_xgate_post_process_headers (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
-{
-
-}
-
#define ELF_ARCH bfd_arch_xgate
#define ELF_MACHINE_CODE EM_XGATE
-#define ELF_TARGET_ID XGATE_ELF_DATA
#define ELF_MAXPAGESIZE 0x1000
#define TARGET_BIG_SYM xgate_elf32_vec
#define TARGET_BIG_NAME "elf32-xgate"
-#define elf_info_to_howto NULL
#define elf_info_to_howto_rel xgate_info_to_howto_rel
-#define elf_backend_check_relocs elf32_xgate_check_relocs
-#define elf_backend_relocate_section elf32_xgate_relocate_section
-#define elf_backend_object_p xgate_elf_set_mach_from_flags
-#define elf_backend_final_write_processing NULL
-#define elf_backend_can_gc_sections 1
#define elf_backend_special_sections elf32_xgate_special_sections
-#define elf_backend_post_process_headers elf32_xgate_post_process_headers
-#define elf_backend_add_symbol_hook elf32_xgate_add_symbol_hook
-
-#define bfd_elf32_bfd_link_hash_table_create xgate_elf_bfd_link_hash_table_create
-#define bfd_elf32_bfd_set_private_flags _bfd_xgate_elf_set_private_flags
+#define elf_backend_symbol_processing elf32_xgate_backend_symbol_processing
#define bfd_elf32_bfd_print_private_bfd_data _bfd_xgate_elf_print_private_bfd_data
-#define xgate_stub_hash_lookup(table, string, create, copy) \
- ((struct elf32_xgate_stub_hash_entry *) \
- bfd_hash_lookup ((table), (string), (create), (copy)))
-
#include "elf32-target.h"
+++ /dev/null
-/* Freescale XGATE-specific support for 32-bit ELF
- Copyright (C) 2012-2018 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_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_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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