--- /dev/null
+/* Zilog Z800n COFF back-end for BFD.
+ Copyright (C) 1992 Free Software Foundation, Inc.
+ Written by Steve Chamberlain
+ sac@cygnus.com
+
+This file is part of BFD, the Binary File Descriptor library.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+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. */
+
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "obstack.h"
+#include "coff/z8k.h"
+#include "coff/internal.h"
+#include "libcoff.h"
+#include "seclet.h"
+extern bfd_error_vector_type bfd_error_vector;
+func_da() {}
+func_jr() {}
+
+static reloc_howto_type r_da =
+ HOWTO(R_DA , 0, 1, 16, false, 0, true,
+true,func_da,"r_da", true, 0x0000ffff,0x0000ffff, false);
+
+static reloc_howto_type r_jr =
+ HOWTO(R_JR, 0,1,8,true,0,true,true,func_jr,"r_jr", true,0,0,true);
+
+
+
+
+
+/* Turn a howto into a reloc number */
+
+static int coff_z8k_select_reloc(howto)
+reloc_howto_type *howto;
+{
+return howto->type;
+}
+#define SELECT_RELOC(x,howto) x= 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
+#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
+ dst->r_stuff[0] = 'S'; \
+ dst->r_stuff[1] = 'C';
+
+/* Code to turn a r_type into a howto ptr, uses the above howto table
+ */
+
+static void
+DEFUN(rtype2howto,(internal, dst),
+arelent *internal AND
+struct internal_reloc *dst)
+{
+ switch (dst->r_type) {
+ default:
+ printf("BAD %x\n", dst->r_type);
+ case R_DA:
+ internal->howto = &r_da;
+ break;
+ case R_JR:
+ internal->howto = &r_jr;
+ }
+}
+
+#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
+
+
+/* Perform any necessaru 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 DEFUN(reloc_processing,(relent,reloc, symbols, abfd, section) ,
+ arelent *relent AND
+ struct internal_reloc *reloc AND
+ asymbol **symbols AND
+ bfd *abfd AND
+ asection *section)
+{
+ relent->address = reloc->r_vaddr;
+ rtype2howto(relent,reloc);
+
+ if (reloc->r_symndx > 0)
+ {
+
+ relent->sym_ptr_ptr = symbols + obj_convert(abfd)[reloc->r_symndx];
+
+ }
+ else
+ {
+ relent->sym_ptr_ptr = &(bfd_abs_symbol);
+ }
+
+
+
+ relent->addend = reloc->r_offset;
+
+ relent->address-= section->vma;
+/* relent->section = 0;*/
+}
+
+static bfd_vma get_value();
+static
+extra_case(in_abfd, seclet, reloc, data, src_ptr, dst_ptr)
+bfd *in_abfd;
+bfd_seclet_type *seclet;
+arelent *reloc;
+bfd_byte *data;
+unsigned int *src_ptr;
+unsigned int *dst_ptr;
+{
+ switch (reloc->howto->type)
+ {
+ case R_DA:
+ bfd_put_16(in_abfd, get_value(reloc, seclet), data+*dst_ptr);
+ (*dst_ptr)+=2;
+ ( *src_ptr)+=2;
+ break;
+ case R_JR:
+ {
+ bfd_vma dst = get_value(reloc,seclet);
+ bfd_vma dot = seclet->offset
+ + *dst_ptr
+ + seclet->u.indirect.section->output_section->vma;
+ int gap = dst - dot - 1 ; /* -1 since were in the odd byte of the
+ word */
+ if (gap & 1)
+ abort();
+ gap/=2;
+ if (gap > 128 || gap< -128)
+ {
+ bfd_error_vector.reloc_value_truncated(reloc, seclet);
+ }
+ bfd_put_8(in_abfd, gap, data+*dst_ptr);
+ (*dst_ptr)++;
+ (*src_ptr)++;
+ break;
+ }
+ default:
+ abort();
+ }
+}
+#define EXTRA_CASES default: extra_case(in_abfd,seclet,reloc, data, &src_address, &dst_address);
+
+
+
+
+#include "coffcode.h"
+
+
+#undef coff_bfd_get_relocated_section_contents
+#undef coff_bfd_relax_section
+#define coff_bfd_get_relocated_section_contents bfd_coff_get_relocated_section_contents
+#define coff_bfd_relax_section bfd_coff_relax_section
+
+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 | DYNAMIC | WP_TEXT),
+
+ ( SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+ '/', /* ar_pad_char */
+ 15, /* ar_max_namelen */
+ 1, /* minimum section alignment */
+_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
+_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_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},
+
+ JUMP_TABLE(coff),
+ COFF_SWAP_TABLE
+};
projects / external / binutils.git / commitdiff