/* BFD back-end for AMD 29000 COFF binaries.
- Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+ Copyright 1990, 91, 92, 93, 94, 95, 97, 98, 1999
+ Free Software Foundation, Inc.
Contributed by David Wood at New York University 7/8/91.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#define A29K 1
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
-#include "obstack.h"
#include "coff/a29k.h"
#include "coff/internal.h"
#include "libcoff.h"
static boolean coff_a29k_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
struct internal_reloc *, struct internal_syment *, asection **));
+static boolean coff_a29k_adjust_symndx
+ PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
+ struct internal_reloc *, boolean *));
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
#define INSERT_HWORD(WORD,HWORD) \
(((WORD) & 0xff00ff00) | (((HWORD) & 0xff00) << 8) | ((HWORD)& 0xff))
#define EXTRACT_HWORD(WORD) \
- (((WORD) & 0x00ff0000) >> 8) | ((WORD)& 0xff)
+ ((((WORD) & 0x00ff0000) >> 8) | ((WORD)& 0xff))
#define SIGN_EXTEND_HWORD(HWORD) \
- ((HWORD) & 0x8000 ? (HWORD)|0xffff0000 : (HWORD))
+ ((HWORD) & 0x8000 ? (HWORD)|(~0xffffL) : (HWORD))
/* Provided the symbol, returns the value reffed */
static long
if ((part1_consth_active) && (r_type != R_IHCONST))
{
part1_consth_active = false;
- *error_message = (char *) "Missing IHCONST";
+ *error_message = (char *) _("Missing IHCONST");
return(bfd_reloc_dangerous);
}
signed_value = EXTRACT_HWORD(insn);
signed_value = SIGN_EXTEND_HWORD(signed_value);
signed_value <<= 2;
- signed_value += sym_value + reloc_entry->addend;
- if (((signed_value + reloc_entry->address) & ~0x3ffff) == 0)
+
+ /* See the note on the R_IREL reloc in coff_a29k_relocate_section. */
+ if (signed_value == - (long) reloc_entry->address)
+ signed_value = 0;
+
+ signed_value += sym_value + reloc_entry->addend;
+ if ((signed_value & ~0x3ffff) == 0)
{ /* Absolute jmp/call */
insn |= (1<<24); /* Make it absolute */
- signed_value += reloc_entry->address;
/* FIXME: Should we change r_type to R_IABS */
}
else
{
/* Relative jmp/call, so subtract from the value the
address of the place we're coming from */
- signed_value -= (input_section->output_section->vma
+ signed_value -= (reloc_entry->address
+ + input_section->output_section->vma
+ input_section->output_offset);
if (signed_value>0x1ffff || signed_value<-0x20000)
return(bfd_reloc_overflow);
/* consth, part 2
Now relocate the reference */
if (part1_consth_active == false) {
- *error_message = (char *) "Missing IHIHALF";
+ *error_message = (char *) _("Missing IHIHALF");
return(bfd_reloc_dangerous);
}
/* sym_ptr_ptr = r_symndx, in coff_slurp_reloc_table() */
case R_BYTE:
insn = bfd_get_8(abfd, hit_data);
unsigned_value = insn + sym_value + reloc_entry->addend;
- if (unsigned_value & 0xffffff00) {
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"byte value too large in module %s\n",
- abfd->filename);
+ if (unsigned_value & 0xffffff00)
return(bfd_reloc_overflow);
- }
bfd_put_8(abfd, unsigned_value, hit_data);
break;
case R_HWORD:
insn = bfd_get_16(abfd, hit_data);
unsigned_value = insn + sym_value + reloc_entry->addend;
- if (unsigned_value & 0xffff0000) {
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"hword value too large in module %s\n",
- abfd->filename);
+ if (unsigned_value & 0xffff0000)
return(bfd_reloc_overflow);
- }
-
bfd_put_16(abfd, insn, hit_data);
break;
case R_WORD:
bfd_put_32(abfd, insn, hit_data);
break;
default:
- *error_message = "Unrecognized reloc";
+ *error_message = _("Unrecognized reloc");
return (bfd_reloc_dangerous);
}
static reloc_howto_type howto_table[] =
{
{R_ABS, 0, 3, 32, false, 0, complain_overflow_bitfield,a29k_reloc,"ABS", true, 0xffffffff,0xffffffff, false},
- {1}, {2}, {3}, {4}, {5}, {6}, {7}, {8}, {9}, {10},
- {11}, {12}, {13}, {14}, {15}, {16}, {17}, {18}, {19}, {20},
- {21}, {22}, {23},
+ EMPTY_HOWTO (1),
+ EMPTY_HOWTO (2),
+ EMPTY_HOWTO (3),
+ EMPTY_HOWTO (4),
+ EMPTY_HOWTO (5),
+ EMPTY_HOWTO (6),
+ EMPTY_HOWTO (7),
+ EMPTY_HOWTO (8),
+ EMPTY_HOWTO (9),
+ EMPTY_HOWTO (10),
+ EMPTY_HOWTO (11),
+ EMPTY_HOWTO (12),
+ EMPTY_HOWTO (13),
+ EMPTY_HOWTO (14),
+ EMPTY_HOWTO (15),
+ EMPTY_HOWTO (16),
+ EMPTY_HOWTO (17),
+ EMPTY_HOWTO (18),
+ EMPTY_HOWTO (19),
+ EMPTY_HOWTO (20),
+ EMPTY_HOWTO (21),
+ EMPTY_HOWTO (22),
+ EMPTY_HOWTO (23),
{R_IREL, 0, 3, 32, true, 0, complain_overflow_signed,a29k_reloc,"IREL", true, 0xffffffff,0xffffffff, false},
{R_IABS, 0, 3, 32, false, 0, complain_overflow_bitfield, a29k_reloc,"IABS", true, 0xffffffff,0xffffffff, false},
{R_ILOHALF, 0, 3, 16, true, 0, complain_overflow_signed, a29k_reloc,"ILOHALF", true, 0x0000ffff,0x0000ffff, false},
static boolean
coff_a29k_relocate_section (output_bfd, info, input_bfd, input_section,
contents, relocs, syms, sections)
- bfd *output_bfd;
+ bfd *output_bfd ATTRIBUTE_UNUSED;
struct bfd_link_info *info;
bfd *input_bfd;
asection *input_section;
symndx = rel->r_symndx;
loc = contents + rel->r_vaddr - input_section->vma;
- if (symndx == -1)
+ if (symndx == -1 || rel->r_type == R_IHCONST)
h = NULL;
else
h = obj_coff_sym_hashes (input_bfd)[symndx];
}
else
{
- if (h->root.type == bfd_link_hash_defined)
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
{
sec = h->root.u.def.section;
val = (h->root.u.def.value
if (hihalf)
{
if (! ((*info->callbacks->reloc_dangerous)
- (info, "missing IHCONST reloc", input_bfd,
+ (info, _("missing IHCONST reloc"), input_bfd,
input_section, rel->r_vaddr - input_section->vma)))
return false;
hihalf = false;
signed_value = SIGN_EXTEND_HWORD (signed_value);
signed_value <<= 2;
+ /* Unfortunately, there are two different versions of COFF
+ a29k. In the original AMD version, the value stored in
+ the field for the R_IREL reloc is a simple addend. In
+ the GNU version, the value is the negative of the address
+ of the reloc within section. We try to cope here by
+ assuming the AMD version, unless the addend is exactly
+ the negative of the address; in the latter case we assume
+ the GNU version. This means that something like
+ .text
+ nop
+ jmp i-4
+ will fail, because the addend of -4 will happen to equal
+ the negative of the address within the section. The
+ compiler will never generate code like this.
+
+ At some point in the future we may want to take out this
+ check. */
+
+ if (signed_value == - (long) (rel->r_vaddr - input_section->vma))
+ signed_value = 0;
+
/* Determine the destination of the jump. */
- signed_value += val + rel->r_vaddr - input_section->vma;
+ signed_value += val;
if ((signed_value & ~0x3ffff) == 0)
{
if (! hihalf)
{
if (! ((*info->callbacks->reloc_dangerous)
- (info, "missing IHIHALF reloc", input_bfd,
+ (info, _("missing IHIHALF reloc"), input_bfd,
input_section, rel->r_vaddr - input_section->vma)))
return false;
hihalf_val = 0;
#define coff_relocate_section coff_a29k_relocate_section
-#include "coffcode.h"
+/* We don't want to change the symndx of a R_IHCONST reloc, since it
+ is actually an addend, not a symbol index at all. */
-const bfd_target a29kcoff_big_vec =
+/*ARGSUSED*/
+static boolean
+coff_a29k_adjust_symndx (obfd, info, ibfd, sec, irel, adjustedp)
+ bfd *obfd ATTRIBUTE_UNUSED;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ bfd *ibfd ATTRIBUTE_UNUSED;
+ asection *sec ATTRIBUTE_UNUSED;
+ struct internal_reloc *irel;
+ boolean *adjustedp;
{
- "coff-a29k-big", /* name */
- bfd_target_coff_flavour,
- true, /* data byte order is big */
- true, /* header byte order is big */
-
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | WP_TEXT),
-
- (SEC_HAS_CONTENTS | SEC_ALLOC /* section flags */
- | SEC_LOAD | SEC_RELOC
- | SEC_READONLY ),
- '_', /* leading underscore */
- '/', /* ar_pad_char */
- 15, /* ar_max_namelen */
- 2, /* minimum section alignment */
- /* data */
- bfd_getb64, bfd_getb_signed_64, bfd_putb64,
- bfd_getb32, bfd_getb_signed_32, bfd_putb32,
- bfd_getb16, bfd_getb_signed_16, bfd_putb16,
- /* hdrs */
- bfd_getb64, bfd_getb_signed_64, bfd_putb64,
- bfd_getb32, bfd_getb_signed_32, bfd_putb32,
- bfd_getb16, bfd_getb_signed_16, bfd_putb16,
-
- {
-
- _bfd_dummy_target,
- coff_object_p,
- bfd_generic_archive_p,
- _bfd_dummy_target
- },
- {
- bfd_false,
- coff_mkobject,
- _bfd_generic_mkarchive,
- bfd_false
- },
- {
- bfd_false,
- coff_write_object_contents,
- _bfd_write_archive_contents,
- bfd_false
- },
-
- BFD_JUMP_TABLE_GENERIC (coff),
- BFD_JUMP_TABLE_COPY (coff),
- BFD_JUMP_TABLE_CORE (_bfd_nocore),
- BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
- BFD_JUMP_TABLE_SYMBOLS (coff),
- BFD_JUMP_TABLE_RELOCS (coff),
- BFD_JUMP_TABLE_WRITE (coff),
- BFD_JUMP_TABLE_LINK (coff),
- BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
-
- COFF_SWAP_TABLE
- };
+ if (irel->r_type == R_IHCONST)
+ *adjustedp = true;
+ else
+ *adjustedp = false;
+ return true;
+}
+
+#define coff_adjust_symndx coff_a29k_adjust_symndx
+
+#include "coffcode.h"
+
+CREATE_BIG_COFF_TARGET_VEC (a29kcoff_big_vec, "coff-a29k-big", 0, SEC_READONLY, '_', NULL)
projects / external / binutils.git / blobdiff