/* M16C/M32C specific support for 32-bit ELF.
- Copyright (C) 2005-2014 Free Software Foundation, Inc.
+ Copyright (C) 2005-2021 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#include "sysdep.h"
#include "bfd.h"
/* Forward declarations. */
static reloc_howto_type * m32c_reloc_type_lookup
(bfd *, bfd_reloc_code_real_type);
-static void m32c_info_to_howto_rela
+static bool m32c_info_to_howto_rela
(bfd *, arelent *, Elf_Internal_Rela *);
-static bfd_boolean m32c_elf_relocate_section
+static int m32c_elf_relocate_section
(bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
-static bfd_boolean m32c_elf_check_relocs
+static bool m32c_elf_check_relocs
(bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
-static bfd_boolean m32c_elf_relax_delete_bytes (bfd *, asection *, bfd_vma, int);
+static bool m32c_elf_relax_delete_bytes (bfd *, asection *, bfd_vma, int);
#ifdef DEBUG
char * m32c_get_reloc (long reloc);
void dump_symtab (bfd *, void *, void *);
#endif
-static bfd_boolean m32c_elf_relax_section
-(bfd *abfd, asection *sec, struct bfd_link_info *link_info, bfd_boolean *again);
+static bool m32c_elf_relax_section
+(bfd *abfd, asection *sec, struct bfd_link_info *link_info, bool *again);
+static bfd_reloc_status_type m32c_apply_reloc_24
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
static reloc_howto_type m32c_elf_howto_table [] =
/* This reloc does nothing. */
HOWTO (R_M32C_NONE, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- FALSE, /* pc_relative */
+ 3, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_NONE", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
/* GCC intentionally overflows these next two in order to work
around limitations in the addressing modes, so don't complain
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_16", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_M32C_24, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
24, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ m32c_apply_reloc_24, /* special_function */
"R_M32C_24", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_M32C_32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_32", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_M32C_8_PCREL, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
- TRUE, /* pc_relative */
+ true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_8_PCREL", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
- 0xff, /* dst_mask */
- TRUE), /* pcrel_offset */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xff, /* dst_mask */
+ true), /* pcrel_offset */
HOWTO (R_M32C_16_PCREL, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- TRUE, /* pc_relative */
+ true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_16_PCREL", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
- 0xffff, /* dst_mask */
- TRUE), /* pcrel_offset */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ true), /* pcrel_offset */
HOWTO (R_M32C_8, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_unsigned, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_8", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
+ false, /* partial_inplace */
+ 0, /* src_mask */
0xff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_M32C_LO16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_LO16", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
+ false, /* partial_inplace */
+ 0, /* src_mask */
0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_M32C_HI8, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_HI8", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
+ false, /* partial_inplace */
+ 0, /* src_mask */
0xff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_M32C_HI16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_HI16", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
+ false, /* partial_inplace */
+ 0, /* src_mask */
0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_M32C_RL_JUMP, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_RL_JUMP", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
HOWTO (R_M32C_RL_1ADDR, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_RL_1ADDR", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
HOWTO (R_M32C_RL_2ADDR, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_M32C_RL_2ADDR", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
};
\f
{
{ BFD_RELOC_NONE, R_M32C_NONE },
{ BFD_RELOC_16, R_M32C_16 },
- { BFD_RELOC_24, R_M32C_24 },
+ { BFD_RELOC_24, R_M32C_24 },
{ BFD_RELOC_32, R_M32C_32 },
- { BFD_RELOC_8_PCREL, R_M32C_8_PCREL },
- { BFD_RELOC_16_PCREL, R_M32C_16_PCREL },
+ { BFD_RELOC_8_PCREL, R_M32C_8_PCREL },
+ { BFD_RELOC_16_PCREL, R_M32C_16_PCREL },
{ BFD_RELOC_8, R_M32C_8 },
{ BFD_RELOC_LO16, R_M32C_LO16 },
{ BFD_RELOC_HI16, R_M32C_HI16 },
static reloc_howto_type *
m32c_reloc_type_lookup
- (bfd * abfd ATTRIBUTE_UNUSED,
+ (bfd * abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
unsigned int i;
- for (i = ARRAY_SIZE (m32c_reloc_map); --i;)
+ for (i = ARRAY_SIZE (m32c_reloc_map); i--;)
if (m32c_reloc_map [i].bfd_reloc_val == code)
return & m32c_elf_howto_table [m32c_reloc_map[i].m32c_reloc_val];
/* Set the howto pointer for an M32C ELF reloc. */
-static void
-m32c_info_to_howto_rela
- (bfd * abfd ATTRIBUTE_UNUSED,
- arelent * cache_ptr,
- Elf_Internal_Rela * dst)
+static bool
+m32c_info_to_howto_rela (bfd * abfd,
+ arelent * cache_ptr,
+ Elf_Internal_Rela * dst)
{
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
- BFD_ASSERT (r_type < (unsigned int) R_M32C_max);
+ if (r_type >= (unsigned int) R_M32C_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 = & m32c_elf_howto_table [r_type];
+ return true;
}
\f
+/* Apply R_M32C_24 relocations. We have to do this because it's not a
+ power-of-two size, and the generic code may think it overruns the
+ section if it's right at the end.
+
+ Must return something other than bfd_reloc_continue to avoid the
+ above problem. Typical return values include bfd_reloc_ok or
+ bfd_reloc_overflow.
+*/
+
+static bfd_reloc_status_type m32c_apply_reloc_24 (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void *vdata_start ATTRIBUTE_UNUSED,
+ asection *input_section,
+ bfd *ibfd ATTRIBUTE_UNUSED,
+ char **error_msg ATTRIBUTE_UNUSED)
+{
+ bfd_vma relocation;
+ bfd_reloc_status_type s;
+
+ s = bfd_elf_generic_reloc (abfd, reloc_entry, symbol,
+ vdata_start,
+ input_section, ibfd, error_msg);
+ if (s != bfd_reloc_continue)
+ return s;
+
+ /* Get symbol value. (Common symbols are special.) */
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_offset;
+
+ /* Add in supplied addend. */
+ relocation += reloc_entry->addend;
+
+ reloc_entry->addend = relocation;
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+}
+
/* Relocate an M32C ELF section.
There is some attempt to make this function usable for many architectures,
both USE_REL and USE_RELA ['twould be nice if such a critter existed],
section, which means that the addend must be adjusted
accordingly. */
-static bfd_boolean
+static int
m32c_elf_relocate_section
- (bfd * output_bfd ATTRIBUTE_UNUSED,
+ (bfd * output_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info * info,
- bfd * input_bfd,
- asection * input_section,
- bfd_byte * contents,
+ bfd * input_bfd,
+ asection * input_section,
+ bfd_byte * contents,
Elf_Internal_Rela * relocs,
- Elf_Internal_Sym * local_syms,
- asection ** local_sections)
+ Elf_Internal_Sym * local_syms,
+ asection ** local_sections)
{
- Elf_Internal_Shdr * symtab_hdr;
+ Elf_Internal_Shdr * symtab_hdr;
struct elf_link_hash_entry ** sym_hashes;
- Elf_Internal_Rela * rel;
- Elf_Internal_Rela * relend;
- bfd *dynobj;
+ Elf_Internal_Rela * rel;
+ Elf_Internal_Rela * relend;
asection *splt;
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
relend = relocs + input_section->reloc_count;
- dynobj = elf_hash_table (info)->dynobj;
- splt = NULL;
- if (dynobj != NULL)
- splt = bfd_get_linker_section (dynobj, ".plt");
+ splt = elf_hash_table (info)->splt;
for (rel = relocs; rel < relend; rel ++)
{
- reloc_howto_type * howto;
- unsigned long r_symndx;
- Elf_Internal_Sym * sym;
- asection * sec;
+ reloc_howto_type * howto;
+ unsigned long r_symndx;
+ Elf_Internal_Sym * sym;
+ asection * sec;
struct elf_link_hash_entry * h;
- bfd_vma relocation;
- bfd_reloc_status_type r;
- const char * name = NULL;
- int r_type;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+ const char * name = NULL;
+ int r_type;
r_type = ELF32_R_TYPE (rel->r_info);
name = bfd_elf_string_from_elf_section
(input_bfd, symtab_hdr->sh_link, sym->st_name);
- name = (sym->st_name == 0) ? bfd_section_name (input_bfd, sec) : name;
+ name = sym->st_name == 0 ? bfd_section_name (sec) : name;
}
else
{
h = sym_hashes [r_symndx - symtab_hdr->sh_info];
+ if (info->wrap_hash != NULL
+ && (input_section->flags & SEC_DEBUGGING) != 0)
+ h = ((struct elf_link_hash_entry *)
+ unwrap_hash_lookup (info, input_bfd, &h->root));
+
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
}
else if (h->root.type == bfd_link_hash_undefweak)
;
- else if (!info->relocatable)
- {
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, rel->r_offset, TRUE)))
- return FALSE;
- }
+ else if (!bfd_link_relocatable (info))
+ (*info->callbacks->undefined_symbol) (info, h->root.root.string,
+ input_bfd, input_section,
+ rel->r_offset, true);
}
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))
{
/* This is a relocatable link. We don't have to change
- anything, unless the reloc is against a section symbol,
- in which case we have to adjust according to where the
- section symbol winds up in the output section. */
+ anything, unless the reloc is against a section symbol,
+ in which case we have to adjust according to where the
+ section symbol winds up in the output section. */
if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
rel->r_addend += sec->output_offset;
continue;
relocation, *plt_offset);*/
if (relocation <= 0xffff)
{
- /* If the symbol is in range for a 16-bit address, we should
+ /* If the symbol is in range for a 16-bit address, we should
have deallocated the plt entry in relax_section. */
- BFD_ASSERT (*plt_offset == (bfd_vma) -1);
+ BFD_ASSERT (*plt_offset == (bfd_vma) -1);
}
else
{
printf ("\n");
}
#endif
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset, relocation,
- rel->r_addend);
+ switch (ELF32_R_TYPE(rel->r_info))
+ {
+ case R_M32C_24:
+ /* Like m32c_apply_reloc_24, we must handle this one separately. */
+ relocation += rel->r_addend;
+
+ /* Sanity check the address. */
+ if (rel->r_offset + 3
+ > bfd_get_section_limit_octets (input_bfd, input_section))
+ r = bfd_reloc_outofrange;
+ else
+ {
+ bfd_put_8 (input_bfd, relocation & 0xff, contents + rel->r_offset);
+ bfd_put_8 (input_bfd, (relocation >> 8) & 0xff, contents + rel->r_offset + 1);
+ bfd_put_8 (input_bfd, (relocation >> 16) & 0xff, contents + rel->r_offset + 2);
+ r = bfd_reloc_ok;
+ }
+
+ break;
+
+ default:
+ r = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel->r_offset, relocation,
+ rel->r_addend);
+ break;
+ }
if (r != bfd_reloc_ok)
{
switch (r)
{
case bfd_reloc_overflow:
- r = info->callbacks->reloc_overflow
+ (*info->callbacks->reloc_overflow)
(info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0,
input_bfd, input_section, rel->r_offset);
break;
case bfd_reloc_undefined:
- r = info->callbacks->undefined_symbol
- (info, name, input_bfd, input_section, rel->r_offset,
- TRUE);
+ (*info->callbacks->undefined_symbol)
+ (info, name, input_bfd, input_section, rel->r_offset, true);
break;
case bfd_reloc_outofrange:
}
if (msg)
- r = info->callbacks->warning
- (info, msg, name, input_bfd, input_section, rel->r_offset);
-
- if (! r)
- return FALSE;
+ (*info->callbacks->warning) (info, msg, name, input_bfd,
+ input_section, rel->r_offset);
}
}
- return TRUE;
+ return true;
}
\f
/* We support 16-bit pointers to code above 64k by generating a thunk
below 64k containing a JMP instruction to the final address. */
-static bfd_boolean
+static bool
m32c_elf_check_relocs
- (bfd * abfd,
+ (bfd * abfd,
struct bfd_link_info * info,
- asection * sec,
+ asection * sec,
const Elf_Internal_Rela * relocs)
{
- Elf_Internal_Shdr * symtab_hdr;
+ Elf_Internal_Shdr * symtab_hdr;
struct elf_link_hash_entry ** sym_hashes;
- const Elf_Internal_Rela * rel;
- const Elf_Internal_Rela * rel_end;
+ const Elf_Internal_Rela * rel;
+ const Elf_Internal_Rela * rel_end;
bfd_vma *local_plt_offsets;
asection *splt;
bfd *dynobj;
- if (info->relocatable)
- return TRUE;
+ if (bfd_link_relocatable (info))
+ return true;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
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];
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
-
- /* PR15323, ref flags aren't set for references in the same
- object. */
- h->root.non_ir_ref = 1;
}
switch (ELF32_R_TYPE (rel->r_info))
- {
+ {
/* This relocation describes a 16-bit pointer to a function.
We may need to allocate a thunk in low memory; reserve memory
for it now. */
case R_M32C_16:
if (dynobj == NULL)
elf_hash_table (info)->dynobj = dynobj = abfd;
+ splt = elf_hash_table (info)->splt;
if (splt == NULL)
{
- splt = bfd_get_linker_section (dynobj, ".plt");
- if (splt == NULL)
- {
- flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY | SEC_LINKER_CREATED
- | SEC_READONLY | SEC_CODE);
- splt = bfd_make_section_anyway_with_flags (dynobj, ".plt",
- flags);
- if (splt == NULL
- || ! bfd_set_section_alignment (dynobj, splt, 1))
- return FALSE;
- }
+ flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY | SEC_LINKER_CREATED
+ | SEC_READONLY | SEC_CODE);
+ splt = bfd_make_section_anyway_with_flags (dynobj, ".plt",
+ flags);
+ elf_hash_table (info)->splt = splt;
+ if (splt == NULL
+ || !bfd_set_section_alignment (splt, 1))
+ return false;
}
if (h != NULL)
size = symtab_hdr->sh_info * sizeof (bfd_vma);
local_plt_offsets = (bfd_vma *) bfd_alloc (abfd, size);
if (local_plt_offsets == NULL)
- return FALSE;
+ return false;
elf_local_got_offsets (abfd) = local_plt_offsets;
for (i = 0; i < symtab_hdr->sh_info; i++)
splt->size += 4;
}
break;
- }
+ }
}
- return TRUE;
+ return true;
}
/* This must exist if dynobj is ever set. */
-static bfd_boolean
+static bool
m32c_elf_finish_dynamic_sections (bfd *abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info)
+ struct bfd_link_info *info)
{
- bfd *dynobj;
- asection *splt;
+ bfd *dynobj = elf_hash_table (info)->dynobj;
+ asection *splt = elf_hash_table (info)->splt;
/* As an extra sanity check, verify that all plt entries have
been filled in. */
- if ((dynobj = elf_hash_table (info)->dynobj) != NULL
- && (splt = bfd_get_linker_section (dynobj, ".plt")) != NULL)
+ if (dynobj != NULL && splt != NULL)
{
bfd_byte *contents = splt->contents;
unsigned int i, size = splt->size;
}
}
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
m32c_elf_always_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info)
+ struct bfd_link_info *info)
{
bfd *dynobj;
asection *splt;
- if (info->relocatable)
- return TRUE;
+ if (bfd_link_relocatable (info))
+ return true;
dynobj = elf_hash_table (info)->dynobj;
if (dynobj == NULL)
- return TRUE;
+ return true;
- splt = bfd_get_linker_section (dynobj, ".plt");
+ splt = elf_hash_table (info)->splt;
BFD_ASSERT (splt != NULL);
splt->contents = (bfd_byte *) bfd_zalloc (dynobj, splt->size);
if (splt->contents == NULL)
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
\f
/* Function to set the ELF flag bits. */
-static bfd_boolean
+static bool
m32c_elf_set_private_flags (bfd *abfd, flagword flags)
{
elf_elfheader (abfd)->e_flags = flags;
- elf_flags_init (abfd) = TRUE;
- return TRUE;
+ elf_flags_init (abfd) = true;
+ return true;
}
/* Merge backend specific data from an object file to the output
object file when linking. */
-static bfd_boolean
-m32c_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
+static bool
+m32c_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
{
+ bfd *obfd = info->output_bfd;
flagword old_flags, old_partial;
flagword new_flags, new_partial;
- bfd_boolean error = FALSE;
+ bool error = false;
char new_opt[80];
char old_opt[80];
old_flags = elf_elfheader (obfd)->e_flags;
#ifdef DEBUG
- (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
- old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
- bfd_get_filename (ibfd));
+ _bfd_error_handler
+ ("old_flags = 0x%.8x, new_flags = 0x%.8x, init = %s, filename = %s",
+ old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
+ bfd_get_filename (ibfd));
#endif
if (!elf_flags_init (obfd))
{
/* First call, no flags set. */
- elf_flags_init (obfd) = TRUE;
+ elf_flags_init (obfd) = true;
elf_elfheader (obfd)->e_flags = new_flags;
}
/* Print out any mismatches from above. */
if (new_opt[0])
{
- error = TRUE;
- (*_bfd_error_handler)
- (_("%s: compiled with %s and linked with modules compiled with %s"),
- bfd_get_filename (ibfd), new_opt, old_opt);
+ error = true;
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: compiled with %s and linked with modules compiled with %s"),
+ ibfd, new_opt, old_opt);
}
new_flags &= ~ EF_M32C_ALL_FLAGS;
/* Warn about any other mismatches. */
if (new_flags != old_flags)
{
- error = TRUE;
- (*_bfd_error_handler)
- (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
- bfd_get_filename (ibfd), (long)new_flags, (long)old_flags);
+ error = true;
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: uses different e_flags (%#x) fields"
+ " than previous modules (%#x)"),
+ ibfd, new_flags, old_flags);
}
}
}
\f
-static bfd_boolean
+static bool
m32c_elf_print_private_bfd_data (bfd *abfd, void *ptr)
{
FILE *file = (FILE *) ptr;
}
fputc ('\n', file);
- return TRUE;
+ return true;
}
/* Return the MACH for an e_flags value. */
switch (elf_elfheader (abfd)->e_flags & EF_M32C_CPU_MASK)
{
case EF_M32C_CPU_M16C: return bfd_mach_m16c;
- case EF_M32C_CPU_M32C: return bfd_mach_m32c;
+ case EF_M32C_CPU_M32C: return bfd_mach_m32c;
}
return bfd_mach_m16c;
}
-static bfd_boolean
+static bool
m32c_elf_object_p (bfd *abfd)
{
bfd_default_set_arch_mach (abfd, bfd_arch_m32c,
elf32_m32c_machine (abfd));
- return TRUE;
+ return true;
}
\f
Elf_Internal_Sym *isymend;
Elf_Internal_Sym *isym;
Elf_Internal_Shdr *symtab_hdr;
- bfd_boolean free_internal = 0, free_external = 0;
+ bool free_internal = 0, free_external = 0;
char * st_info_str;
char * st_info_stb_str;
char * st_other_str;
struct relax_plt_data
{
asection *splt;
- bfd_boolean *again;
+ bool *again;
};
-static bfd_boolean
+static bool
m32c_relax_plt_check (struct elf_link_hash_entry *h, void * xdata)
{
struct relax_plt_data *data = (struct relax_plt_data *) xdata;
{
h->plt.offset = -1;
data->splt->size -= 4;
- *data->again = TRUE;
+ *data->again = true;
}
}
- return TRUE;
+ return true;
}
/* A subroutine of m32c_elf_relax_section. If the global symbol H
previously had a plt entry, give it a new entry offset. */
-static bfd_boolean
+static bool
m32c_relax_plt_realloc (struct elf_link_hash_entry *h, void * xdata)
{
bfd_vma *entry = (bfd_vma *) xdata;
*entry += 4;
}
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
m32c_elf_relax_plt_section (asection *splt,
- struct bfd_link_info *info,
- bfd_boolean *again)
+ struct bfd_link_info *info,
+ bool *again)
{
struct relax_plt_data relax_plt_data;
bfd *ibfd;
/* Assume nothing changes. */
- *again = FALSE;
+ *again = false;
- if (info->relocatable)
- return TRUE;
+ if (bfd_link_relocatable (info))
+ return true;
/* Quick check for an empty plt. */
if (splt->size == 0)
- return TRUE;
+ return true;
/* Map across all global symbols; see which ones happen to
fall in the low 64k. */
/* Likewise for local symbols, though that's somewhat less convenient
as we have to walk the list of input bfds and swap in symbol data. */
- for (ibfd = info->input_bfds; ibfd ; ibfd = ibfd->link_next)
+ for (ibfd = info->input_bfds; ibfd ; ibfd = ibfd->link.next)
{
bfd_vma *local_plt_offsets = elf_local_got_offsets (ibfd);
Elf_Internal_Shdr *symtab_hdr;
symtab_hdr->sh_info, 0,
NULL, NULL, NULL);
if (isymbuf == NULL)
- return FALSE;
+ return false;
}
for (idx = 0; idx < symtab_hdr->sh_info; ++idx)
{
local_plt_offsets[idx] = -1;
splt->size -= 4;
- *again = TRUE;
+ *again = true;
}
}
elf_link_hash_traverse (elf_hash_table (info),
m32c_relax_plt_realloc, &entry);
- for (ibfd = info->input_bfds; ibfd ; ibfd = ibfd->link_next)
+ for (ibfd = info->input_bfds; ibfd ; ibfd = ibfd->link.next)
{
bfd_vma *local_plt_offsets = elf_local_got_offsets (ibfd);
unsigned int nlocals = elf_tdata (ibfd)->symtab_hdr.sh_info;
for (idx = 0; idx < nlocals; ++idx)
if (local_plt_offsets[idx] != (bfd_vma) -1)
{
- local_plt_offsets[idx] = entry;
+ local_plt_offsets[idx] = entry;
entry += 4;
}
}
}
- return TRUE;
+ return true;
}
static int
m32c_offset_for_reloc (bfd *abfd,
Elf_Internal_Rela *rel,
Elf_Internal_Shdr *symtab_hdr,
- Elf_External_Sym_Shndx *shndx_buf ATTRIBUTE_UNUSED,
+ bfd_byte *shndx_buf ATTRIBUTE_UNUSED,
Elf_Internal_Sym *intsyms)
{
bfd_vma symval;
/* If the displacement is within the given range and the new encoding
differs from the old encoding (the index), then the insn can be
relaxed to the new encoding. */
-typedef struct {
+typedef const struct {
int bytes;
unsigned int max_disp;
unsigned char new_encoding;
{ 0, 0, 31 }, /* */
};
-static bfd_boolean
-m32c_elf_relax_section
- (bfd * abfd,
- asection * sec,
- struct bfd_link_info * link_info,
- bfd_boolean * again)
+static bool
+m32c_elf_relax_section (bfd *abfd,
+ asection *sec,
+ struct bfd_link_info *link_info,
+ bool *again)
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Shdr *shndx_hdr;
bfd_byte * free_contents = NULL;
Elf_Internal_Sym *intsyms = NULL;
Elf_Internal_Sym *free_intsyms = NULL;
- Elf_External_Sym_Shndx *shndx_buf = NULL;
+ bfd_byte *shndx_buf = NULL;
int machine;
- if (abfd == elf_hash_table (link_info)->dynobj
+ if (is_elf_hash_table (link_info->hash)
+ && abfd == elf_hash_table (link_info)->dynobj
&& (sec->flags & SEC_LINKER_CREATED) != 0
&& strcmp (sec->name, ".plt") == 0)
return m32c_elf_relax_plt_section (sec, link_info, again);
/* Assume nothing changes. */
- *again = FALSE;
+ *again = false;
machine = elf32_m32c_machine (abfd);
/* We don't have to do anything for a relocatable link, if
this section does not have relocs, or if this is not a
code section. */
- if (link_info->relocatable
+ if (bfd_link_relocatable (link_info)
|| (sec->flags & SEC_RELOC) == 0
|| sec->reloc_count == 0
|| (sec->flags & SEC_CODE) == 0)
- return TRUE;
+ return true;
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
+ symtab_hdr = & elf_symtab_hdr (abfd);
+ if (elf_symtab_shndx_list (abfd))
+ shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr;
+ else
+ shndx_hdr = NULL;
/* Get the section contents. */
if (elf_section_data (sec)->this_hdr.contents != NULL)
symtab_hdr->contents = (bfd_byte *) intsyms;
}
- if (shndx_hdr->sh_size != 0)
+ if (shndx_hdr && shndx_hdr->sh_size != 0)
{
- bfd_size_type amt;
+ size_t amt;
- amt = symtab_hdr->sh_info;
- amt *= sizeof (Elf_External_Sym_Shndx);
- shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
- if (shndx_buf == NULL)
+ if (_bfd_mul_overflow (symtab_hdr->sh_info,
+ sizeof (Elf_External_Sym_Shndx), &amt))
+ {
+ bfd_set_error (bfd_error_file_too_big);
+ goto error_return;
+ }
+ if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0)
goto error_return;
- if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
- || bfd_bread (shndx_buf, amt, abfd) != amt)
+ shndx_buf = _bfd_malloc_and_read (abfd, amt, amt);
+ if (shndx_buf == NULL)
goto error_return;
- shndx_hdr->contents = (bfd_byte *) shndx_buf;
+ shndx_hdr->contents = shndx_buf;
}
/* Get a copy of the native relocations. */
/* The RL_ relocs must be just before the operand relocs they go
with, so we must sort them to guarantee this. */
qsort (internal_relocs, sec->reloc_count, sizeof (Elf_Internal_Rela),
- compare_reloc);
+ compare_reloc);
/* Walk through them looking for relaxing opportunities. */
irelend = internal_relocs + sec->reloc_count;
*/
/* Get the value of the symbol referred to by the reloc. Just
- in case this is the last reloc in the list, use the RL's
- addend to choose between this reloc (no addend) or the next
- (yes addend, which means at least one following reloc). */
+ in case this is the last reloc in the list, use the RL's
+ addend to choose between this reloc (no addend) or the next
+ (yes addend, which means at least one following reloc). */
srel = irel + (relax_relocs ? 1 : 0);
symval = OFFSET_FOR_RELOC (srel);
if (gap_size == 0)
continue;
- *again = TRUE;
+ *again = true;
srel->r_info = ELF32_R_INFO (ELF32_R_SYM (srel->r_info), new_type);
} /* next relocation */
- if (free_relocs != NULL)
- {
- free (free_relocs);
- free_relocs = NULL;
- }
+ free (free_relocs);
+ free_relocs = NULL;
if (free_contents != NULL)
{
/* Cache the symbols for elf_link_input_bfd. */
else
{
- symtab_hdr->contents = NULL /* (unsigned char *) intsyms*/;
+ symtab_hdr->contents = NULL /* (unsigned char *) intsyms*/;
}
free_intsyms = NULL;
}
- return TRUE;
+ return true;
error_return:
- if (free_relocs != NULL)
- free (free_relocs);
- if (free_contents != NULL)
- free (free_contents);
+ free (free_relocs);
+ free (free_contents);
if (shndx_buf != NULL)
{
shndx_hdr->contents = NULL;
free (shndx_buf);
}
- if (free_intsyms != NULL)
- free (free_intsyms);
- return FALSE;
+ free (free_intsyms);
+ return false;
}
/* Delete some bytes from a section while relaxing. */
-static bfd_boolean
-m32c_elf_relax_delete_bytes
- (bfd * abfd,
- asection * sec,
- bfd_vma addr,
- int count)
+static bool
+m32c_elf_relax_delete_bytes (bfd *abfd,
+ asection *sec,
+ bfd_vma addr,
+ int count)
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Shdr *shndx_hdr;
Elf_External_Sym_Shndx *shndx;
struct elf_link_hash_entry ** sym_hashes;
struct elf_link_hash_entry ** end_hashes;
- unsigned int symcount;
+ unsigned int symcount;
contents = elf_section_data (sec)->this_hdr.contents;
isymend = isym + symtab_hdr->sh_info;
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
- shndx_hdr = & elf_tdata (abfd)->symtab_shndx_hdr;
- shndx_buf = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
+ if (elf_symtab_shndx_list (abfd))
+ {
+ shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr;
+ shndx_buf = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
+ }
+ else
+ {
+ shndx_hdr = NULL;
+ shndx_buf = NULL;
+ }
shndx = shndx_buf;
for (; isym < isymend; isym++, shndx = (shndx ? shndx + 1 : NULL))
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
- symtab_hdr->sh_info);
sym_hashes = elf_sym_hashes (abfd);
- // sym_hashes += symtab_hdr->sh_info;
end_hashes = sym_hashes + symcount;
for (; sym_hashes < end_hashes; sym_hashes ++)
}
}
- return TRUE;
+ return true;
}
\f
/* This is for versions of gcc prior to 4.3. */
static unsigned int
-_bfd_m32c_elf_eh_frame_address_size (bfd *abfd, asection *sec ATTRIBUTE_UNUSED)
+_bfd_m32c_elf_eh_frame_address_size (bfd *abfd,
+ const asection *sec ATTRIBUTE_UNUSED)
{
if ((elf_elfheader (abfd)->e_flags & EF_M32C_CPU_MASK) == EF_M32C_CPU_M16C)
return 2;
#define ELF_MAXPAGESIZE 0x100
#if 0
-#define TARGET_BIG_SYM bfd_elf32_m32c_vec
+#define TARGET_BIG_SYM m32c_elf32_vec
#define TARGET_BIG_NAME "elf32-m32c"
#else
-#define TARGET_LITTLE_SYM bfd_elf32_m32c_vec
+#define TARGET_LITTLE_SYM m32c_elf32_vec
#define TARGET_LITTLE_NAME "elf32-m32c"
#endif
#define elf_info_to_howto m32c_info_to_howto_rela
#define elf_backend_object_p m32c_elf_object_p
#define elf_backend_relocate_section m32c_elf_relocate_section
-#define elf_backend_check_relocs m32c_elf_check_relocs
+#define elf_backend_check_relocs m32c_elf_check_relocs
#define elf_backend_object_p m32c_elf_object_p
-#define elf_symbol_leading_char ('_')
+#define elf_symbol_leading_char ('_')
#define elf_backend_always_size_sections \
m32c_elf_always_size_sections
#define elf_backend_finish_dynamic_sections \
projects / deliverable / binutils-gdb.git / blobdiff