Fri Sep 25 11:11:57 1992 Steve Chamberlain (sac@thepub.cygnus.com)
* coff-z8k.c: getting closer * coffcode.h (coff_get_relocated_section_contents): allow EXTRA_CASES hooks for different arches to provide different reloc types. * seclet.h: #ifndef around it to allow multiple inclusion * srec.c: minor doc fix
This commit is contained in:
Steve Chamberlain
parent
22a78f0d96
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8ad2a31dd8
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@ -1,3 +1,18 @@
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Fri Sep 25 11:11:57 1992 Steve Chamberlain (sac@thepub.cygnus.com)
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* coff-z8k.c: getting closer
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* coffcode.h (coff_get_relocated_section_contents): allow
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EXTRA_CASES hooks for different arches to provide different reloc
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types.
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* seclet.h: #ifndef around it to allow multiple inclusion
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* srec.c: minor doc fix
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Mon Sep 21 14:33:58 1992 Ian Lance Taylor (ian@cygnus.com)
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* hosts/hp9000.h, hosts/irix3.h: changes from WRS.
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Sun Sep 20 08:48:25 1992 Fred Fish (fnf@cygnus.com)
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* configure.in: Use i386-elf for all i386/i486 sysv4 hosts, not
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@ -0,0 +1,211 @@
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/* Zilog Z800n COFF back-end for BFD.
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Copyright (C) 1992 Free Software Foundation, Inc.
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Written by Steve Chamberlain
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sac@cygnus.com
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "obstack.h"
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#include "coff/z8k.h"
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#include "coff/internal.h"
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#include "libcoff.h"
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#include "seclet.h"
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extern bfd_error_vector_type bfd_error_vector;
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func_da() {}
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func_jr() {}
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static reloc_howto_type r_da =
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HOWTO(R_DA , 0, 1, 16, false, 0, true,
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true,func_da,"r_da", true, 0x0000ffff,0x0000ffff, false);
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static reloc_howto_type r_jr =
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HOWTO(R_JR, 0,1,8,true,0,true,true,func_jr,"r_jr", true,0,0,true);
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/* Turn a howto into a reloc number */
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static int coff_z8k_select_reloc(howto)
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reloc_howto_type *howto;
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{
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return howto->type;
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}
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#define SELECT_RELOC(x,howto) x= coff_z8k_select_reloc(howto)
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#define BADMAG(x) Z8KBADMAG(x)
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#define Z8K 1 /* Customize coffcode.h */
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#define __A_MAGIC_SET__
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/* Code to swap in the reloc */
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#define SWAP_IN_RELOC_OFFSET bfd_h_get_32
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#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
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#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
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dst->r_stuff[0] = 'S'; \
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dst->r_stuff[1] = 'C';
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/* Code to turn a r_type into a howto ptr, uses the above howto table
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*/
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static void
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DEFUN(rtype2howto,(internal, dst),
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arelent *internal AND
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struct internal_reloc *dst)
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{
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switch (dst->r_type) {
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default:
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printf("BAD %x\n", dst->r_type);
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case R_DA:
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internal->howto = &r_da;
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break;
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case R_JR:
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internal->howto = &r_jr;
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}
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}
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#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
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/* Perform any necessaru magic to the addend in a reloc entry */
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#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
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cache_ptr->addend = ext_reloc.r_offset;
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#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
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reloc_processing(relent, reloc, symbols, abfd, section)
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static void DEFUN(reloc_processing,(relent,reloc, symbols, abfd, section) ,
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arelent *relent AND
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struct internal_reloc *reloc AND
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asymbol **symbols AND
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bfd *abfd AND
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asection *section)
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{
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relent->address = reloc->r_vaddr;
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rtype2howto(relent,reloc);
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if (reloc->r_symndx > 0)
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{
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relent->sym_ptr_ptr = symbols + obj_convert(abfd)[reloc->r_symndx];
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}
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else
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{
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relent->sym_ptr_ptr = &(bfd_abs_symbol);
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}
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relent->addend = reloc->r_offset;
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relent->address-= section->vma;
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/* relent->section = 0;*/
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}
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static bfd_vma get_value();
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static
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extra_case(in_abfd, seclet, reloc, data, src_ptr, dst_ptr)
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bfd *in_abfd;
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bfd_seclet_type *seclet;
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arelent *reloc;
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bfd_byte *data;
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unsigned int *src_ptr;
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unsigned int *dst_ptr;
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{
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switch (reloc->howto->type)
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{
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case R_DA:
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bfd_put_16(in_abfd, get_value(reloc, seclet), data+*dst_ptr);
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(*dst_ptr)+=2;
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( *src_ptr)+=2;
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break;
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case R_JR:
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{
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bfd_vma dst = get_value(reloc,seclet);
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bfd_vma dot = seclet->offset
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+ *dst_ptr
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+ seclet->u.indirect.section->output_section->vma;
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int gap = dst - dot - 1 ; /* -1 since were in the odd byte of the
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word */
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if (gap & 1)
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abort();
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gap/=2;
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if (gap > 128 || gap< -128)
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{
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bfd_error_vector.reloc_value_truncated(reloc, seclet);
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}
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bfd_put_8(in_abfd, gap, data+*dst_ptr);
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(*dst_ptr)++;
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(*src_ptr)++;
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break;
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}
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default:
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abort();
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}
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}
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#define EXTRA_CASES default: extra_case(in_abfd,seclet,reloc, data, &src_address, &dst_address);
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#include "coffcode.h"
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#undef coff_bfd_get_relocated_section_contents
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#undef coff_bfd_relax_section
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#define coff_bfd_get_relocated_section_contents bfd_coff_get_relocated_section_contents
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#define coff_bfd_relax_section bfd_coff_relax_section
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bfd_target z8kcoff_vec =
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{
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"coff-z8k", /* name */
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bfd_target_coff_flavour,
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true, /* data byte order is big */
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true, /* header byte order is big */
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(HAS_RELOC | EXEC_P | /* object flags */
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HAS_LINENO | HAS_DEBUG |
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HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
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( SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
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'/', /* ar_pad_char */
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15, /* ar_max_namelen */
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1, /* minimum section alignment */
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_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
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_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
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{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
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bfd_generic_archive_p, _bfd_dummy_target},
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{bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
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bfd_false},
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{bfd_false, coff_write_object_contents, /* bfd_write_contents */
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_bfd_write_archive_contents, bfd_false},
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JUMP_TABLE(coff),
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COFF_SWAP_TABLE
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};
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@ -2657,10 +2657,15 @@ DEFUN(coff_write_object_contents,(abfd),
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internal_a.magic = PAGEMAGICBCS;
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#endif /* M88 */
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#if M68 || I386 || MIPS || WE32K
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#if M68 || MIPS || WE32K
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#define __A_MAGIC_SET__
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/* Never was anything here for the 68k */
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#endif /* M68 || I386 || MIPS || WE32K */
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#endif /* M68 || MIPS || WE32K */
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#if I386
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# define __A_MAGIC_SET__
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internal_a.magic = ZMAGIC;
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#endif /* I386 */
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#if RS6000COFF_C
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#define __A_MAGIC_SET__
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@ -4162,9 +4167,13 @@ DEFUN(bfd_coff_get_relocated_section_contents,(in_abfd, seclet, data),
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dst_address+=2;
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src_address+=2;
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break;
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#ifdef EXTRA_CASES
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EXTRA_CASES
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#else
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default:
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abort();
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#endif
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}
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}
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}
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@ -1,3 +1,5 @@
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#ifndef _SECLET_H
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#define _SECLET_H
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typedef enum
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{
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@ -29,3 +31,4 @@ struct bfd_seclet_struct
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typedef struct bfd_seclet_struct bfd_seclet_type;
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bfd_seclet_type *EXFUN(bfd_new_seclet,(bfd*,asection*));
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#endif
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