-/* BFD back-end for Motorolla MCore COFF/PE
- Copyright (C) 1999 Free Software Foundation, Inc.
+/* BFD back-end for Motorola MCore COFF/PE
+ Copyright 1999, 2000, 2001, 2002, 2003, 2004
+ Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
/* This file is compiled more than once, but we only compile the
final_link routine once. */
-extern boolean mcore_bfd_coff_final_link
+extern bfd_boolean mcore_bfd_coff_final_link
PARAMS ((bfd *, struct bfd_link_info *));
-
-static struct bfd_link_hash_table * coff_mcore_link_hash_table_create
+#if 0
+static struct bfd_link_hash_table *coff_mcore_link_hash_table_create
PARAMS ((bfd *));
-static bfd_reloc_status_type mcore_coff_unsupported_reloc
+#endif
+static bfd_reloc_status_type mcore_coff_unsupported_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
-static boolean coff_mcore_relocate_section
+static bfd_boolean coff_mcore_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
struct internal_reloc *, struct internal_syment *, asection **));
-static reloc_howto_type * mcore_coff_reloc_type_lookup
+static reloc_howto_type *mcore_coff_reloc_type_lookup
PARAMS ((bfd *, bfd_reloc_code_real_type));
-static reloc_howto_type * coff_mcore_rtype_to_howto
+static reloc_howto_type *coff_mcore_rtype_to_howto
PARAMS ((bfd *, asection *, struct internal_reloc *,
- struct coff_link_hash_entry *, struct internal_syment *, bfd_vma *));
-static const bfd_target * pe_object_p
- PARAMS ((bfd *));
-
-
+ struct coff_link_hash_entry *, struct internal_syment *,
+ bfd_vma *));
+static void mcore_emit_base_file_entry
+ PARAMS ((struct bfd_link_info *, bfd *, asection *, bfd_vma));
+static bfd_boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *));
\f
/* The NT loader points the toc register to &toc + 32768, in order to
use the complete range of a 16-bit displacement. We have to adjust
#define TOC_SECTION_NAME ".private.toc"
/* The main body of code is in coffcode.h. */
-#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
+#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
from smaller values. Start with zero, widen, *then* decrement. */
#define MINUS_ONE (((bfd_vma)0) - 1)
-
\f
static reloc_howto_type mcore_coff_howto_table[] =
{
/* Unused: */
- HOWTO (IMAGE_REL_MCORE_ABSOLUTE,/* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
+ HOWTO (IMAGE_REL_MCORE_ABSOLUTE,/* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
complain_overflow_dont, /* dont complain_on_overflow */
- NULL, /* special_function */
+ NULL, /* special_function */
"ABSOLUTE", /* name */
- false, /* partial_inplace */
- 0x00, /* src_mask */
- 0x00, /* dst_mask */
- false), /* pcrel_offset */
-
+ FALSE, /* partial_inplace */
+ 0x00, /* src_mask */
+ 0x00, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
HOWTO (IMAGE_REL_MCORE_ADDR32,/* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- NULL, /* special_function */
+ NULL, /* special_function */
"ADDR32", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
-
+ TRUE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
/* 8 bits + 2 zero bits; jmpi/jsri/lrw instructions.
- Should not appear in object files. */
+ Should not appear in object files. */
HOWTO (IMAGE_REL_MCORE_PCREL_IMM8BY4, /* type */
2, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
mcore_coff_unsupported_reloc, /* special_function */
"IMM8BY4", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
- /* bsr/bt/bf/br instructions; 11 bits + 1 zero bit
+ /* bsr/bt/bf/br instructions; 11 bits + 1 zero bit
Span 2k instructions == 4k bytes.
Only useful pieces at the relocated address are the opcode (5 bits) */
HOWTO (IMAGE_REL_MCORE_PCREL_IMM11BY2,/* type */
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
11, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
NULL, /* special_function */
"IMM11BY2", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0, /* src_mask */
0x7ff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
- /* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported. */
+ /* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported. */
HOWTO (IMAGE_REL_MCORE_PCREL_IMM4BY2, /* type */
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
4, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
mcore_coff_unsupported_reloc, /* special_function */
"IMM4BY2", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
- /* 32-bit pc-relative. Eventually this will help support PIC code. */
+ /* 32-bit pc-relative. Eventually this will help support PIC code. */
HOWTO (IMAGE_REL_MCORE_PCREL_32,/* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
NULL, /* special_function */
"PCREL_32", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0, /* src_mask */
0xffffffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* Like PCREL_IMM11BY2, this relocation indicates that there is a
'jsri' at the specified address. There is a separate relocation
- entry for the literal pool entry that it references, but we
+ entry for the literal pool entry that it references, but we
might be able to change the jsri to a bsr if the target turns out
to be close enough [even though we won't reclaim the literal pool
entry, we'll get some runtime efficiency back]. Note that this
- is a relocation that we are allowed to safely ignore. */
+ is a relocation that we are allowed to safely ignore. */
HOWTO (IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2,/* type */
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
11, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
NULL, /* special_function */
"JSR_IMM11BY2", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0, /* src_mask */
0x7ff, /* dst_mask */
- true), /* pcrel_offset */
-
+ TRUE), /* pcrel_offset */
+
HOWTO (IMAGE_REL_MCORE_RVA, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
NULL, /* special_function */
"MCORE_RVA", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- true) /* pcrel_offset */
+ TRUE) /* pcrel_offset */
};
\f
/* Extend the coff_link_hash_table structure with a few M*Core specific fields.
#define coff_mcore_hash_table(info) \
((mcore_hash_table *) ((info)->hash))
+#if 0
/* Create an MCore coff linker hash table. */
+
static struct bfd_link_hash_table *
coff_mcore_link_hash_table_create (abfd)
bfd * abfd;
{
mcore_hash_table * ret;
- ret = ((mcore_hash_table *) bfd_alloc (abfd, sizeof (* ret)));
+ ret = (mcore_hash_table *) bfd_malloc ((bfd_size_type) sizeof (* ret));
if (ret == (mcore_hash_table *) NULL)
return NULL;
if (! _bfd_coff_link_hash_table_init
(& ret->root, abfd, _bfd_coff_link_hash_newfunc))
{
- bfd_release (abfd, ret);
+ free (ret);
return (struct bfd_link_hash_table *) NULL;
}
return & ret->root.root;
}
+#endif
\f
/* Add an entry to the base file. */
+
static void
mcore_emit_base_file_entry (info, output_bfd, input_section, reloc_offset)
struct bfd_link_info * info;
if (coff_data (output_bfd)->pe)
addr -= pe_data (output_bfd)->pe_opthdr.ImageBase;
-
+
fwrite (&addr, 1, sizeof (addr), (FILE *) info->base_file);
}
\f
-/*ARGSUSED*/
static bfd_reloc_status_type
mcore_coff_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
output_bfd, error_message)
char ** error_message ATTRIBUTE_UNUSED;
{
BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
-
- _bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"),
- bfd_get_filename (abfd),
+
+ _bfd_error_handler (_("%B: Relocation %s (%d) is not currently supported.\n"),
+ abfd,
reloc_entry->howto->name,
reloc_entry->howto->type);
-
+
return bfd_reloc_notsupported;
}
-
\f
-/* A cheesy little macro to make the code a little more readable. */
+/* A cheesy little macro to make the code a little more readable. */
#define HOW2MAP(bfd_rtype, mcore_rtype) \
case bfd_rtype: return & mcore_coff_howto_table [mcore_rtype]
bfd_reloc_code_real_type code;
{
switch (code)
- {
+ {
HOW2MAP (BFD_RELOC_32, IMAGE_REL_MCORE_ADDR32);
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM8BY4, IMAGE_REL_MCORE_PCREL_IMM8BY4);
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM11BY2, IMAGE_REL_MCORE_PCREL_IMM11BY2);
HOW2MAP (BFD_RELOC_32_PCREL, IMAGE_REL_MCORE_PCREL_32);
HOW2MAP (BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2, IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2);
HOW2MAP (BFD_RELOC_RVA, IMAGE_REL_MCORE_RVA);
- default:
+ default:
return NULL;
}
/*NOTREACHED*/
{
reloc_howto_type * howto;
-
if (rel->r_type >= NUM_ELEM (mcore_coff_howto_table))
return NULL;
-
+
howto = mcore_coff_howto_table + rel->r_type;
if (rel->r_type == IMAGE_REL_MCORE_RVA)
* addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase;
-
- if (howto->pc_relative)
+
+ else if (howto->pc_relative)
{
* addendp = sec->vma - 2; /* XXX guess - is this right ? */
-
+
/* If the symbol is defined, then the generic code is going to
add back the symbol value in order to cancel out an
adjustment it made to the addend. However, we set the addend
}
else
* addendp = 0;
-
+
return howto;
}
-/* Return true if this relocation should appear in the output .reloc section.
+/* Return TRUE if this relocation should appear in the output .reloc section.
This function is referenced in pe_mkobject in peicode.h. */
-static boolean
+
+static bfd_boolean
in_reloc_p (abfd, howto)
bfd * abfd ATTRIBUTE_UNUSED;
reloc_howto_type * howto;
{
return ! howto->pc_relative && howto->type != IMAGE_REL_MCORE_RVA;
-}
-
+}
\f
/* The reloc processing routine for the optimized COFF linker. */
-static boolean
+static bfd_boolean
coff_mcore_relocate_section (output_bfd, info, input_bfd, input_section,
contents, relocs, syms, sections)
bfd * output_bfd;
{
struct internal_reloc * rel;
struct internal_reloc * relend;
- boolean hihalf;
+ bfd_boolean hihalf;
bfd_vma hihalf_val;
-
- /* If we are performing a relocateable link, we don't need to do a
+
+ /* If we are performing a relocatable link, we don't need to do a
thing. The caller will take care of adjusting the reloc
addresses and symbol indices. */
- if (info->relocateable)
- return true;
-
+ if (info->relocatable)
+ return TRUE;
+
/* Check if we have the same endianess */
if ( input_bfd->xvec->byteorder != output_bfd->xvec->byteorder
&& output_bfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
{
(*_bfd_error_handler)
- (_("%s: compiled for a %s endian system and target is %s endian.\n"),
- bfd_get_filename (input_bfd),
- bfd_big_endian (input_bfd) ? "big" : "little",
- bfd_big_endian (output_bfd) ? "big" : "little");
+ (_("%B: compiled for a %s system and target is %s.\n"),
+ input_bfd,
+ bfd_big_endian (input_bfd) ? _("big endian") : _("little endian"),
+ bfd_big_endian (output_bfd) ? _("big endian") : _("little endian"));
bfd_set_error (bfd_error_wrong_format);
- return false;
+ return FALSE;
}
- hihalf = false;
+ hihalf = FALSE;
hihalf_val = 0;
rel = relocs;
relend = rel + input_section->reloc_count;
-
+
for (; rel < relend; rel++)
{
long symndx;
reloc_howto_type * howto = NULL;
struct coff_link_hash_entry * h;
const char * my_name;
-
+
symndx = rel->r_symndx;
loc = contents + rel->r_vaddr - input_section->vma;
sym = syms + symndx;
}
+ addend = 0;
+
/* Get the howto and initialise the addend. */
howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
sym, & addend);
if (howto == NULL)
- return false;
+ return FALSE;
val = 0;
-
+
if (h == NULL)
{
if (symndx == -1)
else
{
asection * sec = sections[symndx];
-
- val = (sym->n_value
+
+ val = (sym->n_value
+ sec->output_section->vma
+ sec->output_offset);
else if ( sym->_n._n_n._n_zeroes == 0
&& sym->_n._n_n._n_offset != 0)
my_name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
- else
+ else
{
static char buf [SYMNMLEN + 1];
-
+
strncpy (buf, sym->_n._n_name, SYMNMLEN);
buf[SYMNMLEN] = '\0';
my_name = buf;
|| h->root.type == bfd_link_hash_defweak)
{
asection * sec = h->root.u.def.section;
-
+
val = (h->root.u.def.value
+ sec->output_section->vma
+ sec->output_offset);
{
if (! ((*info->callbacks->undefined_symbol)
(info, h->root.root.string, input_bfd, input_section,
- rel->r_vaddr - input_section->vma)))
- return false;
+ rel->r_vaddr - input_section->vma, TRUE)))
+ return FALSE;
}
-
+
my_name = h->root.root.string;
- }
+ }
rstat = bfd_reloc_ok;
-
+
/* Each case must do its own relocation, setting rstat appropriately. */
switch (r_type)
{
default:
- _bfd_error_handler (_("%s: unsupported relocation type 0x%02x"),
- bfd_get_filename (input_bfd), r_type);
+ _bfd_error_handler (_("%B: unsupported relocation type 0x%02x"),
+ input_bfd, r_type);
bfd_set_error (bfd_error_bad_value);
- return false;
-
+ return FALSE;
+
case IMAGE_REL_MCORE_ABSOLUTE:
- fprintf (stderr,
- _("Warning: unsupported reloc %s <file %s, section %s>\n"),
- howto->name,
- bfd_get_filename (input_bfd),
- input_section->name);
-
- fprintf (stderr,"sym %ld (%s), r_vaddr %ld (%lx)\n",
- rel->r_symndx, my_name, (long) rel->r_vaddr,
- (unsigned long) rel->r_vaddr);
+ _bfd_error_handler
+ (_("Warning: unsupported reloc %s <file %B, section %A>\n"
+ "sym %ld (%s), r_vaddr %ld (%lx)"),
+ input_bfd, input_section, howto->name,
+ rel->r_symndx, my_name, (long) rel->r_vaddr,
+ (unsigned long) rel->r_vaddr);
break;
-
+
case IMAGE_REL_MCORE_PCREL_IMM8BY4:
case IMAGE_REL_MCORE_PCREL_IMM11BY2:
case IMAGE_REL_MCORE_PCREL_IMM4BY2:
case IMAGE_REL_MCORE_PCREL_32:
case IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2:
case IMAGE_REL_MCORE_ADDR32:
- case IMAGE_REL_MCORE_RVA:
+ /* XXX fixme - shouldn't this be like the code for the RVA reloc ? */
rstat = _bfd_relocate_contents (howto, input_bfd, val, loc);
break;
+
+ case IMAGE_REL_MCORE_RVA:
+ rstat = _bfd_final_link_relocate
+ (howto, input_bfd,
+ input_section, contents, rel->r_vaddr - input_section->vma,
+ val, addend);
+ break;
}
-
+
if (info->base_file)
{
/* Emit a reloc if the backend thinks it needs it. */
if (sym && pe_data (output_bfd)->in_reloc_p (output_bfd, howto))
mcore_emit_base_file_entry (info, output_bfd, input_section, rel->r_vaddr);
}
-
+
switch (rstat)
{
default:
abort ();
-
+
case bfd_reloc_ok:
break;
-
+
case bfd_reloc_overflow:
if (! ((*info->callbacks->reloc_overflow)
- (info, my_name, howto->name,
+ (info, my_name, howto->name,
(bfd_vma) 0, input_bfd,
input_section, rel->r_vaddr - input_section->vma)))
- return false;
+ return FALSE;
}
- }
+ }
- return true;
+ return TRUE;
}
-
\f
-/* Tailor coffcode.h -- macro heaven. */
+/* Tailor coffcode.h -- macro heaven. */
/* We use the special COFF backend linker, with our own special touch. */
#define SELECT_RELOC(internal, howto) {internal.r_type = howto->type;}
+/* Make sure that the 'r_offset' field is copied properly
+ so that identical binaries will compare the same. */
+#define SWAP_IN_RELOC_OFFSET H_GET_32
+#define SWAP_OUT_RELOC_OFFSET H_PUT_32
+
#define COFF_PAGE_SIZE 0x1000
#include "coffcode.h"
\f
-static const bfd_target *
-pe_object_p (abfd)
- bfd * abfd;
-{
-#ifdef COFF_IMAGE_WITH_PE
- /* We need to hack badly to handle a PE image correctly. In PE
- images created by the GNU linker, the offset to the COFF header
- is always the size. However, this is not the case in images
- generated by other PE linkers. The PE format stores a four byte
- offset to the PE signature just before the COFF header at
- location 0x3c of the file. We pick up that offset, verify that
- the PE signature is there, and then set ourselves up to read in
- the COFF header. */
- {
- bfd_byte ext_offset[4];
- file_ptr offset;
- bfd_byte ext_signature[4];
- unsigned long signature;
-
- if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0
- || bfd_read (ext_offset, 1, 4, abfd) != 4)
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_wrong_format);
- return NULL;
- }
-
- offset = bfd_h_get_32 (abfd, ext_offset);
-
- if (bfd_seek (abfd, offset, SEEK_SET) != 0
- || bfd_read (ext_signature, 1, 4, abfd) != 4)
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_wrong_format);
-
- return NULL;
- }
-
- signature = bfd_h_get_32 (abfd, ext_signature);
-
- if (signature != 0x4550)
- {
- bfd_set_error (bfd_error_wrong_format);
- return NULL;
- }
-
- /* Here is the hack. coff_object_p wants to read filhsz bytes to
- pick up the COFF header. We adjust so that that will work. 20
- is the size of the mips COFF filehdr. */
- if (bfd_seek (abfd, (bfd_tell (abfd) - bfd_coff_filhsz (abfd) + 20),
- SEEK_SET) != 0)
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_wrong_format);
-
- return NULL;
- }
- }
-#endif
-
- return coff_object_p (abfd);
-}
-\f
-/* Forward declaration to initialise alterbative_target field. */
+/* Forward declaration to initialise alternative_target field. */
extern const bfd_target TARGET_LITTLE_SYM;
-/* The transfer vectors that lead the outside world to all of the above. */
-CREATE_BIG_COFF_TARGET_VEC (TARGET_BIG_SYM, TARGET_BIG_NAME, D_PAGED, (SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 0, & TARGET_LITTLE_SYM)
-CREATE_LITTLE_COFF_TARGET_VEC (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, D_PAGED, (SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 0, & TARGET_BIG_SYM)
+/* The transfer vectors that lead the outside world to all of the above. */
+CREATE_BIG_COFF_TARGET_VEC (TARGET_BIG_SYM, TARGET_BIG_NAME, D_PAGED,
+ (SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_READONLY | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
+ 0, & TARGET_LITTLE_SYM, COFF_SWAP_TABLE)
+CREATE_LITTLE_COFF_TARGET_VEC (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, D_PAGED,
+ (SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_READONLY | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
+ 0, & TARGET_BIG_SYM, COFF_SWAP_TABLE)
projects / deliverable / binutils-gdb.git / blobdiff