/* BFD back-end for Zilog Z800n COFF binaries.
- Copyright 1992, 1993, 1994 Free Software Foundation, Inc.
+ Copyright 1992, 1993, 1994, 1995, 1997, 1999, 2000
+ Free Software Foundation, Inc.
Contributed by Cygnus Support.
Written by Steve Chamberlain, <sac@cygnus.com>.
#include "bfd.h"
#include "sysdep.h"
-#include "obstack.h"
#include "libbfd.h"
#include "bfdlink.h"
#include "coff/z8k.h"
complain_overflow_bitfield, 0, "r_imm8", true, 0x000000ff, 0x000000ff,
false);
+static reloc_howto_type r_rel16 =
+HOWTO (R_REL16, 0, 1, 16, false, 0,
+ complain_overflow_bitfield, 0, "r_rel16", true, 0x0000ffff, 0x0000ffff,
+ true);
+
static reloc_howto_type r_jr =
HOWTO (R_JR, 0, 1, 8, true, 0, complain_overflow_signed, 0,
"r_jr", true, 0, 0, true);
+static reloc_howto_type r_disp7 =
+HOWTO (R_DISP7, 0, 1, 7, true, 0, complain_overflow_bitfield, 0,
+ "r_disp7", true, 0, 0, true);
+
+static reloc_howto_type r_callr =
+HOWTO (R_CALLR, 0, 1, 12, true, 0, complain_overflow_signed, 0,
+ "r_callr", true, 0xfff, 0xfff, true);
+
/* Turn a howto into a reloc number */
-static int
+static int
coff_z8k_select_reloc (howto)
reloc_howto_type *howto;
{
#define SELECT_RELOC(x,howto) x.r_type = coff_z8k_select_reloc(howto)
-
#define BADMAG(x) Z8KBADMAG(x)
#define Z8K 1 /* Customize coffcode.h */
#define __A_MAGIC_SET__
-
-
/* Code to swap in the reloc */
#define SWAP_IN_RELOC_OFFSET bfd_h_get_32
#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
{
switch (dst->r_type)
{
- default:
- fprintf (stderr, "BAD 0x%x\n", dst->r_type);
+ default:
+ abort ();
+ break;
case R_IMM8:
internal->howto = &r_imm8;
break;
case R_JR:
internal->howto = &r_jr;
break;
+ case R_DISP7:
+ internal->howto = &r_disp7;
+ break;
+ case R_CALLR:
+ internal->howto = &r_callr;
+ break;
+ case R_REL16:
+ internal->howto = &r_rel16;
+ break;
case R_IMM32:
internal->howto = &r_imm32;
break;
#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
-
-/* Perform any necessaru magic to the addend in a reloc entry */
-
+/* Perform any necessary magic to the addend in a reloc entry */
#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
cache_ptr->addend = ext_reloc.r_offset;
-
#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
reloc_processing(relent, reloc, symbols, abfd, section)
-static void
+static void
reloc_processing (relent, reloc, symbols, abfd, section)
arelent * relent;
struct internal_reloc *reloc;
relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
}
-
relent->addend = reloc->r_offset;
relent->address -= section->vma;
}
case R_IMM4L:
bfd_put_8 (in_abfd,
- ((bfd_get_8 (in_abfd, data + *dst_ptr) & 0xf0)
+ ((bfd_get_8 (in_abfd, data + *dst_ptr) & 0xf0)
| (0x0f
& bfd_coff_reloc16_get_value (reloc, link_info,
input_section))),
(*src_ptr)++;
break;
}
+
+ case R_DISP7:
+ {
+ bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section);
+ bfd_vma dot = (link_order->offset
+ + *dst_ptr
+ + input_section->output_section->vma);
+ int gap = dst - dot - 1;/* -1 since were in the odd byte of the
+ word and the pc's been incremented */
+
+ if (gap & 1)
+ abort ();
+ gap /= 2;
+
+ if (gap > 0 || gap < -128)
+ {
+ if (! ((*link_info->callbacks->reloc_overflow)
+ (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
+ reloc->howto->name, reloc->addend, input_section->owner,
+ input_section, reloc->address)))
+ abort ();
+ }
+ bfd_put_8 (in_abfd,
+ (bfd_get_8 ( in_abfd, data + *dst_ptr) & 0x80) + (-gap & 0x7f),
+ data + *dst_ptr);
+ (*dst_ptr)++;
+ (*src_ptr)++;
+ break;
+ }
+
+ case R_CALLR:
+ {
+ bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section);
+ bfd_vma dot = (link_order->offset
+ + *dst_ptr
+ + input_section->output_section->vma);
+ int gap = dst - dot - 2;
+
+ if (gap & 1)
+ abort ();
+ gap /= 2;
+ if (gap > 8191 || gap < -8192)
+ {
+ if (! ((*link_info->callbacks->reloc_overflow)
+ (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
+ reloc->howto->name, reloc->addend, input_section->owner,
+ input_section, reloc->address)))
+ abort ();
+ }
+ bfd_put_16 (in_abfd,
+ (bfd_get_16 ( in_abfd, data + *dst_ptr) & 0xf000) | (-gap & 0x0fff),
+ data + *dst_ptr);
+ (*dst_ptr) += 2;
+ (*src_ptr) += 2;
+ break;
+ }
+
+ case R_REL16:
+ {
+ bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section);
+ bfd_vma dot = (link_order->offset
+ + *dst_ptr
+ + input_section->output_section->vma);
+ int gap = dst - dot - 2;
+
+ if (gap > 32767 || gap < -32768)
+ {
+ if (! ((*link_info->callbacks->reloc_overflow)
+ (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
+ reloc->howto->name, reloc->addend, input_section->owner,
+ input_section, reloc->address)))
+ abort ();
+ }
+ bfd_put_16 (in_abfd,gap,data + *dst_ptr);
+ (*dst_ptr) += 2;
+ (*src_ptr) += 2;
+ break;
+ }
default:
abort ();
}
#include "coffcode.h"
-
#undef coff_bfd_get_relocated_section_contents
#undef coff_bfd_relax_section
#define coff_bfd_get_relocated_section_contents \
bfd_coff_reloc16_get_relocated_section_contents
#define coff_bfd_relax_section bfd_coff_reloc16_relax_section
-const bfd_target z8kcoff_vec =
-{
- "coff-z8k", /* 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 | SEC_LOAD | SEC_RELOC), /* section flags */
- '_', /* leading symbol underscore */
- '/', /* ar_pad_char */
- 15, /* ar_max_namelen */
- bfd_getb64, bfd_getb_signed_64, bfd_putb64,
- bfd_getb32, bfd_getb_signed_32, bfd_putb32,
- bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* 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_dummy_target, coff_object_p, /* bfd_check_format */
- bfd_generic_archive_p, _bfd_dummy_target},
- {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
- bfd_false},
- {bfd_false, coff_write_object_contents, /* bfd_write_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,
-};
+CREATE_BIG_COFF_TARGET_VEC (z8kcoff_vec, "coff-z8k", 0, 0, '_', NULL)