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* elf32-mn10200.c (mn10200_elf_relax_section): New function.

Browse source 
(mn10200_elf_relax_delete_bytes): Likewise.
        (mn10200_elf_symbol_address_p): Likewise.
        (mn10200_elf_get_relocated_section_contents): Likewise.
        (bfd_elf32_bfd_relax_section): Define.
        (bfd_elf32_bfd_get_relocated_section_contents): Likewise.
First cut at relaxing linker for the mn10200:

	jsr:24 -> jsr:16
	jmp:24 -> jmp:16
	jmp:16 -> bra:8
	bCC .+4;bra:8 -> bCC':8


Reduces code size by about 2.5% for hello world.
This commit is contained in:
Jeff Law 1997-02-21 07:14:30 +00:00
parent 48242b28d6
commit fd39566111
2 changed files with 780 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
bfd/ChangeLog
View file

@ -1,4 +1,11 @@
Thu Feb 20 13:52:16 1997 Jeffrey A Law (law@cygnus.com)
Thu Feb 20 23:50:31 1997 Jeffrey A Law (law@cygnus.com)
* elf32-mn10200.c (mn10200_elf_relax_section): New function.
(mn10200_elf_relax_delete_bytes): Likewise.
(mn10200_elf_symbol_address_p): Likewise.
(mn10200_elf_get_relocated_section_contents): Likewise.
(bfd_elf32_bfd_relax_section): Define.
(bfd_elf32_bfd_get_relocated_section_contents): Likewise.
* elf32-mn10200.c (mn10200_elf_final_link_relocate): New function.
(mn10200_elf_relocate_section): Likewise.

774
bfd/elf32-mn10200.c
View file

@ -26,7 +26,10 @@ static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void mn10200_info_to_howto
PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
static boolean mn10200_elf_relax_delete_bytes
PARAMS ((bfd *, asection *, bfd_vma, int));
static boolean mn10200_elf_symbol_address_p
PARAMS ((bfd *, asection *, Elf32_External_Sym *, bfd_vma));
/* We have to use RELA instructions since md_apply_fix3 in the assembler
does absolutely nothing. */
@ -230,7 +233,6 @@ mn10200_elf_final_link_relocate (howto, input_bfd, output_bfd,
asection *sym_sec;
int is_local;
{
unsigned long insn;
unsigned long r_type = howto->type;
bfd_byte *hit_data = contents + offset;
@ -482,6 +484,771 @@ mn10200_elf_relocate_section (output_bfd, info, input_bfd, input_section,
return true;
}
/* This function handles relaxing for the mn10200.
There's quite a few relaxing opportunites available on the mn10200:
* jsr:24 -> jsr:16 2 bytes
* jmp:24 -> jmp:16 2 bytes
- jmp:16 -> bra:8 1 byte
- If the previous instruction is a conditional branch
around the jump/bra, we may be able to reverse its condition
and change its target to the jump's target. The jump/bra
can then be deleted. 1 byte
- mov abs24 -> mov abs16 2 byte savings
- Most instructions which accept imm24 can relax to imm16 2 bytes
- Most instructions which accept imm16 can relax to imm8 1 byte
- Most instructions which accept d24 can relax to d16 2 bytes
- Most instructions which accept d16 can relax to d8 1 byte
A '*' indicates a case this code can handle. */
static boolean
mn10200_elf_relax_section (abfd, sec, link_info, again)
bfd *abfd;
asection *sec;
struct bfd_link_info *link_info;
boolean *again;
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Rela *internal_relocs;
Elf_Internal_Rela *free_relocs = NULL;
Elf_Internal_Rela *irel, *irelend;
bfd_byte *contents = NULL;
bfd_byte *free_contents = NULL;
Elf32_External_Sym *extsyms = NULL;
Elf32_External_Sym *free_extsyms = NULL;
/* Assume nothing changes. */
*again = false;
/* We don't have to do anything for a relocateable link, if
this section does not have relocs, or if this is not a
code section. */
if (link_info->relocateable
|| (sec->flags & SEC_RELOC) == 0
|| sec->reloc_count == 0
|| (sec->flags & SEC_CODE) == 0)
return true;
/* If this is the first time we have been called for this section,
initialize the cooked size. */
if (sec->_cooked_size == 0)
sec->_cooked_size = sec->_raw_size;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
/* Get a copy of the native relocations. */
internal_relocs = (_bfd_elf32_link_read_relocs
(abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
link_info->keep_memory));
if (internal_relocs == NULL)
goto error_return;
if (! link_info->keep_memory)
free_relocs = internal_relocs;
/* Walk through them looking for relaxing opportunities. */
irelend = internal_relocs + sec->reloc_count;
for (irel = internal_relocs; irel < irelend; irel++)
{
bfd_vma symval;
/* If this isn't something that can be relaxed, then ignore
this reloc. */
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_NONE
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_8
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_MAX)
continue;
/* Get the section contents if we haven't done so already. */
if (contents == NULL)
{
/* Get cached copy if it exists. */
if (elf_section_data (sec)->this_hdr.contents != NULL)
contents = elf_section_data (sec)->this_hdr.contents;
else
{
/* Go get them off disk. */
contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
if (contents == NULL)
goto error_return;
free_contents = contents;
if (! bfd_get_section_contents (abfd, sec, contents,
(file_ptr) 0, sec->_raw_size))
goto error_return;
}
}
/* Read the local symbols if we haven't done so already. */
if (extsyms == NULL)
{
/* Get cached copy if it exists. */
if (symtab_hdr->contents != NULL)
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
else
{
/* Go get them off disk. */
extsyms = ((Elf32_External_Sym *)
bfd_malloc (symtab_hdr->sh_info
* sizeof (Elf32_External_Sym)));
if (extsyms == NULL)
goto error_return;
free_extsyms = extsyms;
if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|| (bfd_read (extsyms, sizeof (Elf32_External_Sym),
symtab_hdr->sh_info, abfd)
!= (symtab_hdr->sh_info * sizeof (Elf32_External_Sym))))
goto error_return;
}
}
/* Get the value of the symbol referred to by the reloc. */
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
{
Elf_Internal_Sym isym;
/* A local symbol. */
bfd_elf32_swap_symbol_in (abfd,
extsyms + ELF32_R_SYM (irel->r_info),
&isym);
#if 0
if (isym.st_shndx != _bfd_elf_section_from_bfd_section (abfd, sec))
{
((*_bfd_error_handler)
("%s: 0x%lx: warning: symbol in unexpected section",
bfd_get_filename (abfd), (unsigned long) 0));
continue;
}
#endif
symval = (isym.st_value
+ sec->output_section->vma
+ sec->output_offset);
}
else
{
unsigned long indx;
struct elf_link_hash_entry *h;
/* An external symbol. */
indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
h = elf_sym_hashes (abfd)[indx];
BFD_ASSERT (h != NULL);
if (h->root.type != bfd_link_hash_defined
&& 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. */
continue;
}
symval = (h->root.u.def.value
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
}
/* For simplicity of coding, we are going to modify the section
contents, the section relocs, and the BFD symbol table. We
must tell the rest of the code not to free up this
information. It would be possible to instead create a table
of changes which have to be made, as is done in coff-mips.c;
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)
{
bfd_vma value = symval;
/* Deal with pc-relative gunk. */
value -= (sec->output_section->vma + sec->output_offset);
value -= irel->r_offset;
value += irel->r_addend;
/* 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)
{
unsigned char code;
/* Get the opcode. */
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
if (code != 0xe0 && code != 0xe1)
continue;
/* Note that we've changed the relocs, section contents, etc. */
elf_section_data (sec)->relocs = internal_relocs;
free_relocs = NULL;
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
symtab_hdr->contents = (bfd_byte *) extsyms;
free_extsyms = NULL;
/* Fix the opcode. */
if (code == 0xe0)
bfd_put_8 (abfd, 0xfc, contents + irel->r_offset - 2);
else if (code == 0xe1)
bfd_put_8 (abfd, 0xfd, contents + irel->r_offset - 2);
/* Fix the relocation's type. */
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_MN10200_PCREL16);
/* The opcode got shorter too, so we have to fix the
addend and offset too! */
irel->r_addend -= 1;
irel->r_offset -= 1;
/* Delete two bytes of data. */
if (!mn10200_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 2))
goto error_return;
/* That will change things, so, we should relax again.
Note that this is not required, and it may be slow. */
*again = true;
}
}
/* Try to turn a 16bit pc-relative branch into a 8bit pc-relative
branch. */
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_PCREL16)
{
bfd_vma value = symval;
/* Deal with pc-relative gunk. */
value -= (sec->output_section->vma + sec->output_offset);
value -= irel->r_offset;
value += irel->r_addend;
/* 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)
{
unsigned char code;
/* Get the opcode. */
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
if (code != 0xfc)
continue;
/* Note that we've changed the relocs, section contents, etc. */
elf_section_data (sec)->relocs = internal_relocs;
free_relocs = NULL;
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
symtab_hdr->contents = (bfd_byte *) extsyms;
free_extsyms = NULL;
/* Fix the opcode. */
bfd_put_8 (abfd, 0xea, contents + irel->r_offset - 1);
/* Fix the relocation's type. */
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_MN10200_PCREL8);
/* Delete one byte of data. */
if (!mn10200_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 1))
goto error_return;
/* That will change things, so, we should relax again.
Note that this is not required, and it may be slow. */
*again = true;
}
}
/* Try to eliminate an unconditional 8 bit pc-relative branch
which immediately follows a conditional 8 bit pc-relative
branch around the unconditional branch.
original: new:
bCC lab1 bCC' lab2
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)
{
Elf_Internal_Rela *nrel;
bfd_vma value = symval;
unsigned char code;
/* Deal with pc-relative gunk. */
value -= (sec->output_section->vma + sec->output_offset);
value -= irel->r_offset;
value += irel->r_addend;
/* Do nothing if this reloc is the last byte in the section. */
if (irel->r_offset == sec->_cooked_size)
continue;
/* See if the next instruction is an unconditional pc-relative
branch, more often than not this test will fail, so we
test it first to speed things up. */
code = bfd_get_8 (abfd, contents + irel->r_offset + 1);
if (code != 0xea)
continue;
/* Also make sure the next relocation applies to the next
instruction and that it's a pc-relative 8 bit branch. */
nrel = irel + 1;
if (nrel == irelend
|| irel->r_offset + 2 != nrel->r_offset
|| ELF32_R_TYPE (nrel->r_info) != (int) R_MN10200_PCREL8)
continue;
/* Make sure our destination immediately follows the
unconditional branch. */
if (symval != (sec->output_section->vma + sec->output_offset
+ irel->r_offset + 3))
continue;
/* Now make sure we are a conditional branch. This may not
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
elsewhere, we'd need to know the start of this insn
for this check to be accurate. */
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
if (code != 0xe0 && code != 0xe1 && code != 0xe2
&& code != 0xe3 && code != 0xe4 && code != 0xe5
&& code != 0xe6 && code != 0xe7 && code != 0xe8
&& code != 0xe9 && code != 0xec && code != 0xed
&& code != 0xee && code != 0xef && code != 0xfc
&& code != 0xfd && code != 0xfe && code != 0xff)
continue;
/* We also have to be sure there is no symbol/label
at the unconditional branch. */
if (mn10200_elf_symbol_address_p (abfd, sec, extsyms,
irel->r_offset + 1))
continue;
/* Note that we've changed the relocs, section contents, etc. */
elf_section_data (sec)->relocs = internal_relocs;
free_relocs = NULL;
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
symtab_hdr->contents = (bfd_byte *) extsyms;
free_extsyms = NULL;
/* 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;
}
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;
/* Make the reloc for the second branch a null reloc. */
nrel->r_info = ELF32_R_INFO (ELF32_R_SYM (nrel->r_info),
R_MN10200_NONE);
/* Delete two bytes of data. */
if (!mn10200_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 2))
goto error_return;
printf("yahoo\n");
/* That will change things, so, we should relax again.
Note that this is not required, and it may be slow. */
*again = true;
}
}
if (free_relocs != NULL)
{
free (free_relocs);
free_relocs = NULL;
}
if (free_contents != NULL)
{
if (! link_info->keep_memory)
free (free_contents);
else
{
/* Cache the section contents for elf_link_input_bfd. */
elf_section_data (sec)->this_hdr.contents = contents;
}
free_contents = NULL;
}
if (free_extsyms != NULL)
{
if (! link_info->keep_memory)
free (free_extsyms);
else
{
/* Cache the symbols for elf_link_input_bfd. */
symtab_hdr->contents = extsyms;
}
free_extsyms = NULL;
}
return true;
error_return:
if (free_relocs != NULL)
free (free_relocs);
if (free_contents != NULL)
free (free_contents);
if (free_extsyms != NULL)
free (free_extsyms);
return false;
}
/* Delete some bytes from a section while relaxing. */
static boolean
mn10200_elf_relax_delete_bytes (abfd, sec, addr, count)
bfd *abfd;
asection *sec;
bfd_vma addr;
int count;
{
Elf_Internal_Shdr *symtab_hdr;
Elf32_External_Sym *extsyms;
int shndx;
bfd_byte *contents;
Elf_Internal_Rela *irel, *irelend;
Elf_Internal_Rela *irelalign;
bfd_vma toaddr;
Elf32_External_Sym *esym, *esymend;
struct elf_link_hash_entry **sym_hash, **sym_hash_end;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
contents = elf_section_data (sec)->this_hdr.contents;
/* The deletion must stop at the next ALIGN reloc for an aligment
power larger than the number of bytes we are deleting. */
irelalign = NULL;
toaddr = sec->_cooked_size;
irel = elf_section_data (sec)->relocs;
irelend = irel + sec->reloc_count;
/* Actually delete the bytes. */
memmove (contents + addr, contents + addr + count, toaddr - addr - count);
sec->_cooked_size -= count;
/* Adjust all the relocs. */
for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
{
/* Get the new reloc address. */
if ((irel->r_offset > addr
&& irel->r_offset < toaddr))
irel->r_offset -= count;
}
/* Adjust all the symbols. */
esym = extsyms;
esymend = esym + symtab_hdr->sh_info;
for (; esym < esymend; esym++)
{
Elf_Internal_Sym isym;
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
if (isym.st_shndx == shndx
&& isym.st_value > addr
&& isym.st_value < toaddr)
{
isym.st_value -= count;
bfd_elf32_swap_symbol_out (abfd, &isym, esym);
}
}
sym_hash = elf_sym_hashes (abfd);
sym_hash_end = (sym_hash
+ (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
- symtab_hdr->sh_info));
for (; sym_hash < sym_hash_end; sym_hash++)
{
if (((*sym_hash)->root.type == bfd_link_hash_defined
|| (*sym_hash)->root.type == bfd_link_hash_defweak)
&& (*sym_hash)->root.u.def.section == sec
&& (*sym_hash)->root.u.def.value > addr
&& (*sym_hash)->root.u.def.value < toaddr)
{
(*sym_hash)->root.u.def.value -= count;
}
}
return true;
}
/* Return true if a symbol exists at the given address, else return
false. */
static boolean
mn10200_elf_symbol_address_p (abfd, sec, extsyms, addr)
bfd *abfd;
asection *sec;
Elf32_External_Sym *extsyms;
bfd_vma addr;
{
Elf_Internal_Shdr *symtab_hdr;
int shndx;
Elf32_External_Sym *esym, *esymend;
struct elf_link_hash_entry **sym_hash, **sym_hash_end;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
/* Examine all the symbols. */
esym = extsyms;
esymend = esym + symtab_hdr->sh_info;
for (; esym < esymend; esym++)
{
Elf_Internal_Sym isym;
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
if (isym.st_shndx == shndx
&& isym.st_value == addr)
return true;
}
sym_hash = elf_sym_hashes (abfd);
sym_hash_end = (sym_hash
+ (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
- symtab_hdr->sh_info));
for (; sym_hash < sym_hash_end; sym_hash++)
{
if (((*sym_hash)->root.type == bfd_link_hash_defined
|| (*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 false;
}
/* This is a version of bfd_generic_get_relocated_section_contents
which uses mn10200_elf_relocate_section. */
static bfd_byte *
mn10200_elf_get_relocated_section_contents (output_bfd, link_info, link_order,
data, relocateable, symbols)
bfd *output_bfd;
struct bfd_link_info *link_info;
struct bfd_link_order *link_order;
bfd_byte *data;
boolean relocateable;
asymbol **symbols;
{
Elf_Internal_Shdr *symtab_hdr;
asection *input_section = link_order->u.indirect.section;
bfd *input_bfd = input_section->owner;
asection **sections = NULL;
Elf_Internal_Rela *internal_relocs = NULL;
Elf32_External_Sym *external_syms = NULL;
Elf_Internal_Sym *internal_syms = NULL;
/* We only need to handle the case of relaxing, or of having a
particular set of section contents, specially. */
if (relocateable
|| elf_section_data (input_section)->this_hdr.contents == NULL)
return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
link_order, data,
relocateable,
symbols);
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
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;
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)
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))))
goto error_return;
}
internal_relocs = (_bfd_elf32_link_read_relocs
(input_bfd, input_section, (PTR) NULL,
(Elf_Internal_Rela *) NULL, false));
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)
goto error_return;
sections = (asection **) bfd_malloc (symtab_hdr->sh_info
* sizeof (asection *));
if (sections == NULL && symtab_hdr->sh_info > 0)
goto error_return;
isymp = internal_syms;
secpp = sections;
esym = external_syms;
esymend = esym + symtab_hdr->sh_info;
for (; esym < esymend; ++esym, ++isymp, ++secpp)
{
asection *isec;
bfd_elf32_swap_symbol_in (input_bfd, esym, isymp);
if (isymp->st_shndx == SHN_UNDEF)
isec = bfd_und_section_ptr;
else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
else if (isymp->st_shndx == SHN_ABS)
isec = bfd_abs_section_ptr;
else if (isymp->st_shndx == SHN_COMMON)
isec = bfd_com_section_ptr;
else
{
/* Who knows? */
isec = NULL;
}
*secpp = isec;
}
if (! mn10200_elf_relocate_section (output_bfd, link_info, input_bfd,
input_section, data, internal_relocs,
internal_syms, sections))
goto error_return;
if (sections != NULL)
free (sections);
sections = NULL;
if (internal_syms != NULL)
free (internal_syms);
internal_syms = NULL;
if (external_syms != NULL && symtab_hdr->contents == NULL)
free (external_syms);
external_syms = NULL;
if (internal_relocs != elf_section_data (input_section)->relocs)
free (internal_relocs);
internal_relocs = NULL;
}
return data;
error_return:
if (internal_relocs != NULL
&& internal_relocs != elf_section_data (input_section)->relocs)
free (internal_relocs);
if (external_syms != NULL && symtab_hdr->contents == NULL)
free (external_syms);
if (internal_syms != NULL)
free (internal_syms);
if (sections != NULL)
free (sections);
return NULL;
}
#define TARGET_LITTLE_SYM bfd_elf32_mn10200_vec
#define TARGET_LITTLE_NAME "elf32-mn10200"
#define ELF_ARCH bfd_arch_mn10200
@ -491,6 +1258,9 @@ mn10200_elf_relocate_section (output_bfd, info, input_bfd, input_section,
#define elf_info_to_howto mn10200_info_to_howto
#define elf_info_to_howto_rel 0
#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 \
mn10200_elf_get_relocated_section_contents
#define elf_symbol_leading_char '_'