/* Motorola MCore specific support for 32-bit ELF
- Copyright 1994, 1995, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
- 2007 Free Software Foundation, Inc.
+ Copyright (C) 1994-2020 Free Software Foundation, Inc.
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 2 of the License, or
+ 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,
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. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
/* This file is based on a preliminary RCE ELF ABI. The
information may not match the final RCE ELF ABI. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
object file when linking. */
static bfd_boolean
-mcore_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
+mcore_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
{
+ bfd *obfd = info->output_bfd;
flagword old_flags;
flagword new_flags;
- /* Check if we have the same endianess. */
- if (! _bfd_generic_verify_endian_match (ibfd, obfd))
+ /* Check if we have the same endianness. */
+ if (! _bfd_generic_verify_endian_match (ibfd, info))
return FALSE;
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
if (! elf_flags_init (obfd))
{
- /* First call, no flags set. */
+ /* First call, no flags set. */
elf_flags_init (obfd) = TRUE;
elf_elfheader (obfd)->e_flags = new_flags;
}
mcore_elf_unsupported_reloc (bfd * abfd,
arelent * reloc_entry,
asymbol * symbol ATTRIBUTE_UNUSED,
- PTR data ATTRIBUTE_UNUSED,
+ void * data ATTRIBUTE_UNUSED,
asection * input_section ATTRIBUTE_UNUSED,
bfd * output_bfd ATTRIBUTE_UNUSED,
char ** error_message ATTRIBUTE_UNUSED)
{
BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
- _bfd_error_handler (_("%B: Relocation %s (%d) is not currently supported.\n"),
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: %s unsupported"),
abfd,
- reloc_entry->howto->name,
- reloc_entry->howto->type);
+ reloc_entry->howto->name);
return bfd_reloc_notsupported;
}
/* This reloc does nothing. */
HOWTO (R_MCORE_NONE, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
+ 3, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- NULL, /* special_function */
+ complain_overflow_dont, /* complain_on_overflow */
+ NULL, /* special_function */
"R_MCORE_NONE", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
/* GNU extension to record C++ vtable hierarchy. */
HOWTO (R_MCORE_GNU_VTINHERIT, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- NULL, /* special_function */
- "R_MCORE_GNU_VTINHERIT", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- FALSE), /* pcrel_offset */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_MCORE_GNU_VTINHERIT", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
/* GNU extension to record C++ vtable member usage. */
- HOWTO (R_MCORE_GNU_VTENTRY, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- _bfd_elf_rel_vtable_reloc_fn, /* special_function */
- "R_MCORE_GNU_VTENTRY", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_MCORE_RELATIVE, /* type */
+ HOWTO (R_MCORE_GNU_VTENTRY, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont,/* complain_on_overflow */
+ _bfd_elf_rel_vtable_reloc_fn, /* special_function */
+ "R_MCORE_GNU_VTENTRY", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_MCORE_RELATIVE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
- NULL, /* special_function */
- "R_MCORE_RELATIVE", /* name */
+ NULL, /* special_function */
+ "R_MCORE_RELATIVE", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
case BFD_RELOC_MCORE_PCREL_IMM4BY2: mcore_reloc = R_MCORE_PCRELIMM4BY2; break;
case BFD_RELOC_32_PCREL: mcore_reloc = R_MCORE_PCREL32; break;
case BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2: mcore_reloc = R_MCORE_PCRELJSR_IMM11BY2; break;
- case BFD_RELOC_VTABLE_INHERIT: mcore_reloc = R_MCORE_GNU_VTINHERIT; break;
- case BFD_RELOC_VTABLE_ENTRY: mcore_reloc = R_MCORE_GNU_VTENTRY; break;
- case BFD_RELOC_RVA: mcore_reloc = R_MCORE_RELATIVE; break;
+ case BFD_RELOC_VTABLE_INHERIT: mcore_reloc = R_MCORE_GNU_VTINHERIT; break;
+ case BFD_RELOC_VTABLE_ENTRY: mcore_reloc = R_MCORE_GNU_VTENTRY; break;
+ case BFD_RELOC_RVA: mcore_reloc = R_MCORE_RELATIVE; break;
default:
return NULL;
}
/* Set the howto pointer for a RCE ELF reloc. */
-static void
-mcore_elf_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED,
+static bfd_boolean
+mcore_elf_info_to_howto (bfd * abfd,
arelent * cache_ptr,
Elf_Internal_Rela * dst)
{
+ unsigned int r_type;
+
if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4])
/* Initialize howto table if needed. */
mcore_elf_howto_init ();
- BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_MCORE_max);
+ r_type = ELF32_R_TYPE (dst->r_info);
+ if (r_type >= R_MCORE_max)
+ {
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+ abfd, r_type);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
- cache_ptr->howto = mcore_elf_howto_table [ELF32_R_TYPE (dst->r_info)];
+ cache_ptr->howto = mcore_elf_howto_table [r_type];
+ return TRUE;
}
\f
/* The RELOCATE_SECTION function is called by the ELF backend linker
#ifdef DEBUG
_bfd_error_handler
- ("mcore_elf_relocate_section called for %B section %A, %ld relocations%s",
+ ("mcore_elf_relocate_section called for %pB section %pA, %u relocations%s",
input_bfd,
input_section,
- (long) input_section->reloc_count,
- (info->relocatable) ? " (relocatable)" : "");
+ input_section->reloc_count,
+ (bfd_link_relocatable (info)) ? " (relocatable)" : "");
#endif
if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4]) /* Initialize howto table if needed */
for (; rel < relend; rel++)
{
- enum elf_mcore_reloc_type r_type = (enum elf_mcore_reloc_type) ELF32_R_TYPE (rel->r_info);
- bfd_vma offset = rel->r_offset;
- bfd_vma addend = rel->r_addend;
- bfd_reloc_status_type r = bfd_reloc_other;
- asection * sec = NULL;
- reloc_howto_type * howto;
- bfd_vma relocation;
- Elf_Internal_Sym * sym = NULL;
- unsigned long r_symndx;
+ enum elf_mcore_reloc_type r_type = (enum elf_mcore_reloc_type) ELF32_R_TYPE (rel->r_info);
+ bfd_vma offset = rel->r_offset;
+ bfd_vma addend = rel->r_addend;
+ bfd_reloc_status_type r = bfd_reloc_other;
+ asection * sec = NULL;
+ reloc_howto_type * howto;
+ bfd_vma relocation;
+ Elf_Internal_Sym * sym = NULL;
+ unsigned long r_symndx;
struct elf_link_hash_entry * h = NULL;
- unsigned short oldinst = 0;
+ unsigned short oldinst = 0;
/* Unknown relocation handling. */
if ((unsigned) r_type >= (unsigned) R_MCORE_max
|| ! mcore_elf_howto_table [(int)r_type])
{
- _bfd_error_handler (_("%B: Unknown relocation type %d\n"),
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
input_bfd, (int) r_type);
bfd_set_error (bfd_error_bad_value);
/* Complain about known relocation that are not yet supported. */
if (howto->special_function == mcore_elf_unsupported_reloc)
{
- _bfd_error_handler (_("%B: Relocation %s (%d) is not currently supported.\n"),
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: %s unsupported"),
input_bfd,
- howto->name,
- (int)r_type);
+ howto->name);
bfd_set_error (bfd_error_bad_value);
ret = FALSE;
}
else
{
- bfd_boolean unresolved_reloc, warned;
+ bfd_boolean unresolved_reloc, warned, ignored;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
- unresolved_reloc, warned);
+ unresolved_reloc, warned, ignored);
}
- if (sec != NULL && elf_discarded_section (sec))
- {
- /* For relocs against symbols from removed linkonce sections,
- or sections discarded by a linker script, we just want the
- section contents zeroed. Avoid any special processing. */
- _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
- rel->r_info = 0;
- rel->r_addend = 0;
- continue;
- }
+ if (sec != NULL && discarded_section (sec))
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
continue;
switch (r_type)
break;
if (* name == '\0')
- name = bfd_section_name (input_bfd, sec);
+ name = bfd_section_name (sec);
}
(*info->callbacks->reloc_overflow)
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
-/* Update the got entry reference counts for the section being removed. */
-
-static bfd_boolean
-mcore_elf_gc_sweep_hook (bfd * abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info * info ATTRIBUTE_UNUSED,
- asection * sec ATTRIBUTE_UNUSED,
- const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED)
-{
- return TRUE;
-}
-
/* 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. */
{
Elf_Internal_Shdr * symtab_hdr;
struct elf_link_hash_entry ** sym_hashes;
- struct elf_link_hash_entry ** sym_hashes_end;
const Elf_Internal_Rela * rel;
const Elf_Internal_Rela * rel_end;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
- sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
- if (!elf_bad_symtab (abfd))
- sym_hashes_end -= symtab_hdr->sh_info;
rel_end = relocs + sec->reloc_count;
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx < symtab_hdr->sh_info)
- h = NULL;
+ h = NULL;
else
{
h = sym_hashes [r_symndx - symtab_hdr->sh_info];
}
switch (ELF32_R_TYPE (rel->r_info))
- {
- /* This relocation describes the C++ object vtable hierarchy.
- Reconstruct it for later use during GC. */
- case R_MCORE_GNU_VTINHERIT:
- if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return FALSE;
- break;
-
- /* This relocation describes which C++ vtable entries are actually
- used. Record for later use during GC. */
- case R_MCORE_GNU_VTENTRY:
- if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
- return FALSE;
- break;
- }
+ {
+ /* This relocation describes the C++ object vtable hierarchy.
+ Reconstruct it for later use during GC. */
+ case R_MCORE_GNU_VTINHERIT:
+ if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return FALSE;
+ break;
+
+ /* This relocation describes which C++ vtable entries are actually
+ used. Record for later use during GC. */
+ case R_MCORE_GNU_VTENTRY:
+ if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
+ break;
+ }
}
return TRUE;
{
{ STRING_COMMA_LEN (".ctors"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
{ STRING_COMMA_LEN (".dtors"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
- { NULL, 0, 0, 0, 0 }
+ { NULL, 0, 0, 0, 0 }
};
-#define TARGET_BIG_SYM bfd_elf32_mcore_big_vec
+#define TARGET_BIG_SYM mcore_elf32_be_vec
#define TARGET_BIG_NAME "elf32-mcore-big"
-#define TARGET_LITTLE_SYM bfd_elf32_mcore_little_vec
-#define TARGET_LITTLE_NAME "elf32-mcore-little"
+#define TARGET_LITTLE_SYM mcore_elf32_le_vec
+#define TARGET_LITTLE_NAME "elf32-mcore-little"
#define ELF_ARCH bfd_arch_mcore
#define ELF_MACHINE_CODE EM_MCORE
#define bfd_elf32_bfd_reloc_name_lookup mcore_elf_reloc_name_lookup
#define elf_backend_relocate_section mcore_elf_relocate_section
#define elf_backend_gc_mark_hook mcore_elf_gc_mark_hook
-#define elf_backend_gc_sweep_hook mcore_elf_gc_sweep_hook
-#define elf_backend_check_relocs mcore_elf_check_relocs
+#define elf_backend_check_relocs mcore_elf_check_relocs
#define elf_backend_special_sections mcore_elf_special_sections
#define elf_backend_can_gc_sections 1
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