/* Matsushita 10200 specific support for 32-bit ELF
- Copyright (C) 1996-2015 Free Software Foundation, Inc.
+ Copyright (C) 1996-2021 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
#include "libbfd.h"
#include "elf-bfd.h"
-static bfd_boolean
+static bool
mn10200_elf_relax_delete_bytes (bfd *, asection *, bfd_vma, int);
-static bfd_boolean
+static bool
mn10200_elf_symbol_address_p (bfd *, asection *, Elf_Internal_Sym *, bfd_vma);
enum reloc_type
0,
3,
0,
- FALSE,
+ false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_MN10200_NONE",
- FALSE,
+ false,
0,
0,
- FALSE),
+ false),
/* Standard 32 bit reloc. */
HOWTO (R_MN10200_32,
0,
2,
32,
- FALSE,
+ false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_32",
- FALSE,
+ false,
0xffffffff,
0xffffffff,
- FALSE),
+ false),
/* Standard 16 bit reloc. */
HOWTO (R_MN10200_16,
0,
1,
16,
- FALSE,
+ false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_16",
- FALSE,
+ false,
0xffff,
0xffff,
- FALSE),
+ false),
/* Standard 8 bit reloc. */
HOWTO (R_MN10200_8,
0,
0,
8,
- FALSE,
+ false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_8",
- FALSE,
+ false,
0xff,
0xff,
- FALSE),
+ false),
/* Standard 24 bit reloc. */
HOWTO (R_MN10200_24,
0,
2,
24,
- FALSE,
+ false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_24",
- FALSE,
+ false,
0xffffff,
0xffffff,
- FALSE),
+ false),
/* Simple 8 pc-relative reloc. */
HOWTO (R_MN10200_PCREL8,
0,
0,
8,
- TRUE,
+ true,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_PCREL8",
- FALSE,
+ false,
0xff,
0xff,
- TRUE),
+ true),
/* Simple 16 pc-relative reloc. */
HOWTO (R_MN10200_PCREL16,
0,
1,
16,
- TRUE,
+ true,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_PCREL16",
- FALSE,
+ false,
0xffff,
0xffff,
- TRUE),
+ true),
/* Simple 32bit pc-relative reloc with a 1 byte adjustment
to get the pc-relative offset correct. */
HOWTO (R_MN10200_PCREL24,
0,
2,
24,
- TRUE,
+ true,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_PCREL24",
- FALSE,
+ false,
0xffffff,
0xffffff,
- TRUE),
+ true),
};
struct mn10200_reloc_map
/* Set the howto pointer for an MN10200 ELF reloc. */
-static void
-mn10200_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
+static bool
+mn10200_info_to_howto (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_MN10200_MAX);
+ if (r_type >= (unsigned int) R_MN10200_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 = &elf_mn10200_howto_table[r_type];
+ return cache_ptr->howto != NULL;
}
/* Perform a relocation as part of a final link. */
}
\f
/* Relocate an MN10200 ELF section. */
-static bfd_boolean
+static int
mn10200_elf_relocate_section (bfd *output_bfd,
struct bfd_link_info *info,
bfd *input_bfd,
}
else
{
- bfd_boolean unresolved_reloc, warned, ignored;
+ bool unresolved_reloc, warned, ignored;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
name = (bfd_elf_string_from_elf_section
(input_bfd, symtab_hdr->sh_link, sym->st_name));
if (name == NULL || *name == '\0')
- name = bfd_section_name (input_bfd, sec);
+ name = bfd_section_name (sec);
}
switch (r)
{
case bfd_reloc_overflow:
- if (! ((*info->callbacks->reloc_overflow)
- (info, (h ? &h->root : NULL), name, howto->name,
- (bfd_vma) 0, input_bfd, input_section,
- rel->r_offset)))
- return FALSE;
+ (*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:
- if (! ((*info->callbacks->undefined_symbol)
- (info, name, input_bfd, input_section,
- rel->r_offset, TRUE)))
- return FALSE;
+ (*info->callbacks->undefined_symbol) (info, name, input_bfd,
+ input_section,
+ rel->r_offset, true);
break;
case bfd_reloc_outofrange:
/* fall through */
common_error:
- if (!((*info->callbacks->warning)
- (info, msg, name, input_bfd, input_section,
- rel->r_offset)))
- return FALSE;
+ (*info->callbacks->warning) (info, msg, name, input_bfd,
+ input_section, rel->r_offset);
break;
}
}
}
- return TRUE;
+ return true;
}
/* Delete some bytes from a section while relaxing. */
-static bfd_boolean
+static bool
mn10200_elf_relax_delete_bytes (bfd *abfd, asection *sec,
bfd_vma addr, int count)
{
}
}
- return TRUE;
+ return true;
}
/* This function handles relaxing for the mn10200.
There are quite a few relaxing opportunities available on the mn10200:
- * jsr:24 -> jsr:16 2 bytes
+ * jsr:24 -> jsr:16 2 bytes
* jmp:24 -> jmp:16 2 bytes
* jmp:16 -> bra:8 1 byte
We don't handle imm16->imm8 or d16->d8 as they're very rare
and somewhat more difficult to support. */
-static bfd_boolean
+static bool
mn10200_elf_relax_section (bfd *abfd,
asection *sec,
struct bfd_link_info *link_info,
- bfd_boolean *again)
+ bool *again)
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Rela *internal_relocs;
Elf_Internal_Sym *isymbuf = NULL;
/* Assume nothing changes. */
- *again = FALSE;
+ *again = false;
/* We don't have to do anything for a relocatable link, if
this section does not have relocs, or if this is not a
|| (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;
&& h->root.type != bfd_link_hash_defweak)
{
/* This appears to be a reference to an undefined
- symbol. Just ignore it--it will be caught by the
- regular reloc processing. */
+ symbol. Just ignore it--it will be caught by the
+ regular reloc processing. */
continue;
}
/* That will change things, so, we should relax again.
Note that this is not required, and it may be slow. */
- *again = TRUE;
+ *again = true;
}
}
/* That will change things, so, we should relax again.
Note that this is not required, and it may be slow. */
- *again = TRUE;
+ *again = true;
}
}
/* That will change things, so, we should relax again.
Note that this is not required, and it may be slow. */
- *again = TRUE;
+ *again = true;
}
/* Try to turn a 24bit immediate, displacement or absolute address
/* That will change things, so, we should relax again.
Note that this is not required, and it may be slow. */
- *again = TRUE;
+ *again = true;
break;
/* mov imm24,an -> mov imm16,an
/* That will change things, so, we should relax again.
Note that this is not required, and it may be slow. */
- *again = TRUE;
+ *again = true;
break;
/* cmp imm24,dn -> cmp imm16,dn
/* That will change things, so, we should relax again.
Note that this is not required, and it may be slow. */
- *again = TRUE;
+ *again = true;
break;
/* movb (abs24),dn ->movbu (abs16),dn extxb bn */
/* That will change things, so, we should relax again.
Note that this is not required, and it may be slow. */
- *again = TRUE;
+ *again = true;
break;
}
}
}
}
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
+ if (elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
- return TRUE;
+ return true;
error_return:
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
+ if (symtab_hdr->contents != (unsigned char *) isymbuf)
free (isymbuf);
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
+ if (elf_section_data (sec)->this_hdr.contents != contents)
free (contents);
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
+ if (elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
- return FALSE;
+ return false;
}
/* Return TRUE if a symbol exists at the given address, else return
FALSE. */
-static bfd_boolean
+static bool
mn10200_elf_symbol_address_p (bfd *abfd,
asection *sec,
Elf_Internal_Sym *isym,
{
if (isym->st_shndx == sec_shndx
&& isym->st_value == addr)
- return TRUE;
+ return true;
}
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|| sym_hash->root.type == bfd_link_hash_defweak)
&& sym_hash->root.u.def.section == sec
&& sym_hash->root.u.def.value == addr)
- return TRUE;
+ return true;
}
- return FALSE;
+ return false;
}
/* This is a version of bfd_generic_get_relocated_section_contents
struct bfd_link_info *link_info,
struct bfd_link_order *link_order,
bfd_byte *data,
- bfd_boolean relocatable,
+ bool relocatable,
asymbol **symbols)
{
Elf_Internal_Shdr *symtab_hdr;
internal_relocs = (_bfd_elf_link_read_relocs
(input_bfd, input_section, NULL,
- (Elf_Internal_Rela *) NULL, FALSE));
+ (Elf_Internal_Rela *) NULL, false));
if (internal_relocs == NULL)
goto error_return;
isymbuf, sections))
goto error_return;
- if (sections != NULL)
- free (sections);
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
+ free (sections);
+ if (symtab_hdr->contents != (unsigned char *) isymbuf)
free (isymbuf);
if (elf_section_data (input_section)->relocs != internal_relocs)
free (internal_relocs);
return data;
error_return:
- if (sections != NULL)
- free (sections);
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
+ free (sections);
+ if (symtab_hdr->contents != (unsigned char *) isymbuf)
free (isymbuf);
- if (internal_relocs != NULL
- && elf_section_data (input_section)->relocs != internal_relocs)
+ if (elf_section_data (input_section)->relocs != internal_relocs)
free (internal_relocs);
return NULL;
}
#define elf_backend_rela_normal 1
#define elf_info_to_howto mn10200_info_to_howto
-#define elf_info_to_howto_rel 0
+#define elf_info_to_howto_rel NULL
#define elf_backend_relocate_section mn10200_elf_relocate_section
#define bfd_elf32_bfd_relax_section mn10200_elf_relax_section
#define bfd_elf32_bfd_get_relocated_section_contents \
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