/* Matsushita 10200 specific support for 32-bit ELF
- Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
PARAMS ((bfd *, asection *, bfd_vma, int));
static boolean mn10200_elf_symbol_address_p
PARAMS ((bfd *, asection *, Elf32_External_Sym *, bfd_vma));
+static bfd_reloc_status_type mn10200_elf_final_link_relocate
+ PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *,
+ bfd_byte *, bfd_vma, bfd_vma, bfd_vma,
+ struct bfd_link_info *, asection *, int));
+static boolean mn10200_elf_relocate_section
+PARAMS (( bfd *, struct bfd_link_info *, bfd *, asection *,
+ bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *,
+ asection **));
+static boolean mn10200_elf_relax_section
+ PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
+static bfd_byte * mn10200_elf_get_relocated_section_contents
+ PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
+ bfd_byte *, boolean, asymbol **));
/* We have to use RELA instructions since md_apply_fix3 in the assembler
does absolutely nothing. */
#define USE_RELA
-enum reloc_type
-{
+enum reloc_type {
R_MN10200_NONE = 0,
R_MN10200_32,
R_MN10200_16,
R_MN10200_MAX
};
-static reloc_howto_type elf_mn10200_howto_table[] =
-{
+static reloc_howto_type elf_mn10200_howto_table[] = {
/* Dummy relocation. Does nothing. */
HOWTO (R_MN10200_NONE,
0,
true),
};
-struct mn10200_reloc_map
-{
+struct mn10200_reloc_map {
bfd_reloc_code_real_type bfd_reloc_val;
unsigned char elf_reloc_val;
};
-static const struct mn10200_reloc_map mn10200_reloc_map[] =
-{
- { BFD_RELOC_NONE, R_MN10200_NONE, },
- { BFD_RELOC_32, R_MN10200_32, },
- { BFD_RELOC_16, R_MN10200_16, },
- { BFD_RELOC_8, R_MN10200_8, },
- { BFD_RELOC_24, R_MN10200_24, },
- { BFD_RELOC_8_PCREL, R_MN10200_PCREL8, },
+static const struct mn10200_reloc_map mn10200_reloc_map[] = {
+ { BFD_RELOC_NONE , R_MN10200_NONE , },
+ { BFD_RELOC_32 , R_MN10200_32 , },
+ { BFD_RELOC_16 , R_MN10200_16 , },
+ { BFD_RELOC_8 , R_MN10200_8 , },
+ { BFD_RELOC_24 , R_MN10200_24 , },
+ { BFD_RELOC_8_PCREL , R_MN10200_PCREL8 , },
{ BFD_RELOC_16_PCREL, R_MN10200_PCREL16, },
{ BFD_RELOC_24_PCREL, R_MN10200_PCREL24, },
};
}
/* Perform a relocation as part of a final link. */
+
static bfd_reloc_status_type
mn10200_elf_final_link_relocate (howto, input_bfd, output_bfd,
input_section, contents, offset, value,
case R_MN10200_16:
value += addend;
- if ((long)value > 0x7fff || (long)value < -0x8000)
+ if ((long) value > 0x7fff || (long) value < -0x8000)
return bfd_reloc_overflow;
bfd_put_16 (input_bfd, value, hit_data);
case R_MN10200_8:
value += addend;
- if ((long)value > 0x7f || (long)value < -0x80)
+ if ((long) value > 0x7f || (long) value < -0x80)
return bfd_reloc_overflow;
bfd_put_8 (input_bfd, value, hit_data);
case R_MN10200_24:
value += addend;
- if ((long)value > 0x7fffff || (long)value < -0x800000)
+ if ((long) value > 0x7fffff || (long) value < -0x800000)
return bfd_reloc_overflow;
value &= 0xffffff;
value -= (offset + 1);
value += addend;
- if ((long)value > 0xff || (long)value < -0x100)
- return bfd_reloc_overflow;
+ if ((long) value > 0xff || (long) value < -0x100)
+ return bfd_reloc_overflow;
bfd_put_8 (input_bfd, value, hit_data);
return bfd_reloc_ok;
value -= (offset + 2);
value += addend;
- if ((long)value > 0xffff || (long)value < -0x10000)
- return bfd_reloc_overflow;
+ if ((long) value > 0xffff || (long) value < -0x10000)
+ return bfd_reloc_overflow;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
value -= (offset + 3);
value += addend;
- if ((long)value > 0xffffff || (long)value < -0x1000000)
- return bfd_reloc_overflow;
+ if ((long) value > 0xffffff || (long) value < -0x1000000)
+ return bfd_reloc_overflow;
value &= 0xffffff;
value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000);
return bfd_reloc_notsupported;
}
}
-
\f
/* Relocate an MN10200 ELF section. */
static boolean
{
if (! ((*info->callbacks->undefined_symbol)
(info, h->root.root.string, input_bfd,
- input_section, rel->r_offset)))
+ input_section, rel->r_offset, true)))
return false;
relocation = 0;
}
if (r != bfd_reloc_ok)
{
const char *name;
- const char *msg = (const char *)0;
+ const char *msg = (const char *) 0;
if (h != NULL)
name = h->root.root.string;
case bfd_reloc_undefined:
if (! ((*info->callbacks->undefined_symbol)
(info, name, input_bfd, input_section,
- rel->r_offset)))
+ rel->r_offset, true)))
return false;
break;
abs24, imm24, d24 all look the same at the reloc level. It
might make the code simpler if we had different relocs for
the various relaxable operand types.
-
+
We don't handle imm16->imm8 or d16->d8 as they're very rare
and somewhat more difficult to support. */
-static boolean
+static boolean
mn10200_elf_relax_section (abfd, sec, link_info, again)
bfd *abfd;
asection *sec;
else
{
/* Go get them off disk. */
- extsyms = ((Elf32_External_Sym *)
- bfd_malloc (symtab_hdr->sh_size));
+ bfd_size_type amt = symtab_hdr->sh_size;
+ extsyms = (Elf32_External_Sym *) bfd_malloc (amt);
if (extsyms == NULL)
goto error_return;
free_extsyms = extsyms;
if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
- || (bfd_read (extsyms, 1, symtab_hdr->sh_size, abfd)
- != symtab_hdr->sh_size))
+ || bfd_bread (extsyms, amt, abfd) != amt)
goto error_return;
}
}
that would be more work, but would require less memory when
the linker is run. */
-
/* Try to turn a 24bit pc-relative branch/call into a 16bit pc-relative
branch/call. */
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_PCREL24)
/* See if the value will fit in 16 bits, note the high value is
0x7fff + 2 as the target will be two bytes closer if we are
able to relax. */
- if ((long)value < 0x8001 && (long)value > -0x8000)
+ if ((long) value < 0x8001 && (long) value > -0x8000)
{
unsigned char code;
/* See if the value will fit in 8 bits, note the high value is
0x7f + 1 as the target will be one bytes closer if we are
able to relax. */
- if ((long)value < 0x80 && (long)value > -0x80)
+ if ((long) value < 0x80 && (long) value > -0x80)
{
unsigned char code;
bra lab2
lab1: lab1:
-
This happens when the bCC can't reach lab2 at assembly time,
but due to other relaxations it can reach at link time. */
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_PCREL8)
continue;
/* Now make sure we are a conditional branch. This may not
- be necessary, but why take the chance.
+ be necessary, but why take the chance.
Note these checks assume that R_MN10200_PCREL8 relocs
only occur on bCC and bCCx insns. If they occured
/* Reverse the condition of the first branch. */
switch (code)
{
- case 0xfc:
- code = 0xfd;
- break;
- case 0xfd:
- code = 0xfc;
- break;
- case 0xfe:
- code = 0xff;
- break;
- case 0xff:
- code = 0xfe;
- break;
- case 0xe8:
- code = 0xe9;
- break;
- case 0xe9:
- code = 0xe8;
- break;
- case 0xe0:
- code = 0xe2;
- break;
- case 0xe2:
- code = 0xe0;
- break;
- case 0xe3:
- code = 0xe1;
- break;
- case 0xe1:
- code = 0xe3;
- break;
- case 0xe4:
- code = 0xe6;
- break;
- case 0xe6:
- code = 0xe4;
- break;
- case 0xe7:
- code = 0xe5;
- break;
- case 0xe5:
- code = 0xe7;
- break;
- case 0xec:
- code = 0xed;
- break;
- case 0xed:
- code = 0xec;
- break;
- case 0xee:
- code = 0xef;
- break;
- case 0xef:
- code = 0xee;
- break;
+ case 0xfc:
+ code = 0xfd;
+ break;
+ case 0xfd:
+ code = 0xfc;
+ break;
+ case 0xfe:
+ code = 0xff;
+ break;
+ case 0xff:
+ code = 0xfe;
+ break;
+ case 0xe8:
+ code = 0xe9;
+ break;
+ case 0xe9:
+ code = 0xe8;
+ break;
+ case 0xe0:
+ code = 0xe2;
+ break;
+ case 0xe2:
+ code = 0xe0;
+ break;
+ case 0xe3:
+ code = 0xe1;
+ break;
+ case 0xe1:
+ code = 0xe3;
+ break;
+ case 0xe4:
+ code = 0xe6;
+ break;
+ case 0xe6:
+ code = 0xe4;
+ break;
+ case 0xe7:
+ code = 0xe5;
+ break;
+ case 0xe5:
+ code = 0xe7;
+ break;
+ case 0xec:
+ code = 0xed;
+ break;
+ case 0xed:
+ code = 0xec;
+ break;
+ case 0xee:
+ code = 0xef;
+ break;
+ case 0xef:
+ code = 0xee;
+ break;
}
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
-
+
/* Set the reloc type and symbol for the first branch
from the second branch. */
irel->r_info = nrel->r_info;
{
bfd_vma value = symval;
- /* See if the value will fit in 16 bits.
+ /* See if the value will fit in 16 bits.
We allow any 16bit match here. We prune those we can't
handle below. */
- if ((long)value < 0x7fff && (long)value > -0x8000)
+ if ((long) value < 0x7fff && (long) value > -0x8000)
{
unsigned char code;
*again = true;
break;
- /* mov imm24,an -> mov imm16,an
+ /* mov imm24,an -> mov imm16,an
cmp imm24,an -> cmp imm16,an
mov (abs24),dn -> mov (abs16),dn
mov dn,(abs24) -> mov dn,(abs16)
add imm24,dn -> add imm16,dn
add imm24,an -> add imm16,an
sub imm24,dn -> sub imm16,dn
- sub imm24,an -> sub imm16,an
+ sub imm24,an -> sub imm16,an
And all d24->d16 in memory ops. */
case 0x78:
case 0xd0:
move the value out of high mem and thus not fit
in a signed 16bit value. */
if (((code & 0xfc) == 0x78
- || (code & 0xfc) == 0x60
- || (code & 0xfc) == 0x64
- || (code & 0xfc) == 0x68
- || (code & 0xfc) == 0x6c
- || (code & 0xfc) == 0x80
- || (code & 0xfc) == 0xf0
- || (code & 0xfc) == 0x00
- || (code & 0xfc) == 0x10
- || (code & 0xfc) == 0xb0
- || (code & 0xfc) == 0x30
- || (code & 0xfc) == 0xa0
- || (code & 0xfc) == 0x20
- || (code & 0xfc) == 0x90)
- && (value & 0x8000) != 0)
+ || (code & 0xfc) == 0x60
+ || (code & 0xfc) == 0x64
+ || (code & 0xfc) == 0x68
+ || (code & 0xfc) == 0x6c
+ || (code & 0xfc) == 0x80
+ || (code & 0xfc) == 0xf0
+ || (code & 0xfc) == 0x00
+ || (code & 0xfc) == 0x10
+ || (code & 0xfc) == 0xb0
+ || (code & 0xfc) == 0x30
+ || (code & 0xfc) == 0xa0
+ || (code & 0xfc) == 0x20
+ || (code & 0xfc) == 0x90)
+ && (value & 0x8000) != 0)
continue;
/* Note that we've changed the reldection contents, etc. */
irelend = irel + sec->reloc_count;
/* Actually delete the bytes. */
- memmove (contents + addr, contents + addr + count, toaddr - addr - count);
+ memmove (contents + addr, contents + addr + count,
+ (size_t) (toaddr - addr - count));
sec->_cooked_size -= count;
/* Adjust all the relocs. */
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
- input_section->_raw_size);
+ (size_t) input_section->_raw_size);
if ((input_section->flags & SEC_RELOC) != 0
&& input_section->reloc_count > 0)
Elf_Internal_Sym *isymp;
asection **secpp;
Elf32_External_Sym *esym, *esymend;
+ bfd_size_type size;
if (symtab_hdr->contents != NULL)
external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
else
{
- external_syms = ((Elf32_External_Sym *)
- bfd_malloc (symtab_hdr->sh_info
- * sizeof (Elf32_External_Sym)));
- if (external_syms == NULL && symtab_hdr->sh_info > 0)
+ size = symtab_hdr->sh_info;
+ size *= sizeof (Elf32_External_Sym);
+ external_syms = (Elf32_External_Sym *) bfd_malloc (size);
+ if (external_syms == NULL && size != 0)
goto error_return;
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
- || (bfd_read (external_syms, sizeof (Elf32_External_Sym),
- symtab_hdr->sh_info, input_bfd)
- != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym))))
+ || bfd_bread (external_syms, size, input_bfd) != size)
goto error_return;
}
if (internal_relocs == NULL)
goto error_return;
- internal_syms = ((Elf_Internal_Sym *)
- bfd_malloc (symtab_hdr->sh_info
- * sizeof (Elf_Internal_Sym)));
- if (internal_syms == NULL && symtab_hdr->sh_info > 0)
+ size = symtab_hdr->sh_info;
+ size *= sizeof (Elf_Internal_Sym);
+ internal_syms = (Elf_Internal_Sym *) bfd_malloc (size);
+ if (internal_syms == NULL && size != 0)
goto error_return;
- sections = (asection **) bfd_malloc (symtab_hdr->sh_info
- * sizeof (asection *));
- if (sections == NULL && symtab_hdr->sh_info > 0)
+ size = symtab_hdr->sh_info;
+ size *= sizeof (asection *);
+ sections = (asection **) bfd_malloc (size);
+ if (sections == NULL && size != 0)
goto error_return;
isymp = internal_syms;
return NULL;
}
-
#define TARGET_LITTLE_SYM bfd_elf32_mn10200_vec
#define TARGET_LITTLE_NAME "elf32-mn10200"
#define ELF_ARCH bfd_arch_mn10200
-#define ELF_MACHINE_CODE EM_CYGNUS_MN10200
+#define ELF_MACHINE_CODE EM_MN10200
+#define ELF_MACHINE_ALT1 EM_CYGNUS_MN10200
#define ELF_MAXPAGESIZE 0x1000
#define elf_info_to_howto mn10200_info_to_howto
projects / binutils-gdb.git / blobdiff