6e301b2bf2
* coff-a29k.c: Fix formatting. * coff-h8500.c: Likewise. * coff-i960.c: Likewise. * coff-ppc.c: Likewise. * coff-rs6000.c: Likewise. * coff-stgo32.c: Likewise. * coff-tic54x.c: Likewise. * coff-w65.c: Likewise. * cpu-h8500.c: Likewise. * cpu-hppa.c: Likewise. * cpu-ns32k.c: Likewise.
843 lines
25 KiB
C
843 lines
25 KiB
C
/* BFD support for the ns32k architecture.
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Copyright (C) 1990, 91, 94, 95, 96, 98, 1999 Free Software Foundation, Inc.
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Almost totally rewritten by Ian Dall from initial work
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by Andrew Cagney.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 "ns32k.h"
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#define N(machine, printable, d, next) \
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{ 32, 32, 8, bfd_arch_ns32k, machine, "ns32k",printable,3,d,bfd_default_compatible,bfd_default_scan, next, }
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static const bfd_arch_info_type arch_info_struct[] =
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{
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N(32532,"ns32k:32532",true, 0), /* the word ns32k will match this too */
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};
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const bfd_arch_info_type bfd_ns32k_arch =
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N(32032,"ns32k:32032",false, &arch_info_struct[0]);
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static long
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ns32k_sign_extend(value, bits)
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int value;
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int bits;
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{
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value = value & ((1 << bits) - 1);
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return (value & (1 << (bits-1))
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? value | (~((1 << bits) - 1))
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: value);
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}
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long
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_bfd_ns32k_get_displacement(buffer, offset, size)
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bfd_byte *buffer;
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long offset;
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long size;
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{
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long value;
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buffer += offset;
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switch (size)
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{
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case 1:
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value = ns32k_sign_extend (*buffer, 7);
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break;
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case 2:
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value = ns32k_sign_extend(*buffer++, 6);
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value = (value << 8) | (0xff & *buffer);
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break;
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case 4:
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value = ns32k_sign_extend(*buffer++, 6);
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value = (value << 8) | (0xff & *buffer++);
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value = (value << 8) | (0xff & *buffer++);
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value = (value << 8) | (0xff & *buffer);
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break;
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default:
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abort ();
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return 0;
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}
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return value;
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}
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int
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_bfd_ns32k_put_displacement(value, buffer, offset, size)
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long value;
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bfd_byte *buffer;
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long offset;
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long size;
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{
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buffer += offset;
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switch (size)
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{
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case 1:
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if (value < -64 || value > 63)
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return -1;
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value&=0x7f;
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*buffer++=value;
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break;
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case 2:
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if (value < -8192 || value > 8191)
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return -1;
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value&=0x3fff;
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value|=0x8000;
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*buffer++=(value>>8);
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*buffer++=value;
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break;
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case 4:
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if (value < -0x1f000000 || value >= 0x20000000)
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return -1;
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value|=0xc0000000;
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*buffer++=(value>>24);
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*buffer++=(value>>16);
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*buffer++=(value>>8);
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*buffer++=value;
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break;
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default:
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return -1;
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}
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return 0;
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}
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long
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_bfd_ns32k_get_immediate (buffer, offset, size)
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bfd_byte *buffer;
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long offset;
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long size;
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{
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long value = 0;
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buffer += offset;
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switch (size)
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{
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case 4:
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value = (value << 8) | (*buffer++ & 0xff);
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case 3:
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value = (value << 8) | (*buffer++ & 0xff);
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case 2:
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value = (value << 8) | (*buffer++ & 0xff);
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case 1:
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value = (value << 8) | (*buffer++ & 0xff);
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}
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return value;
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}
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int
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_bfd_ns32k_put_immediate (value, buffer, offset, size)
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long value;
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bfd_byte *buffer;
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long offset;
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long size;
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{
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buffer += offset + size - 1;
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switch (size)
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{
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case 4:
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*buffer-- = (value & 0xff); value >>= 8;
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case 3:
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*buffer-- = (value & 0xff); value >>= 8;
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case 2:
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*buffer-- = (value & 0xff); value >>= 8;
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case 1:
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*buffer-- = (value & 0xff); value >>= 8;
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}
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return 0;
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}
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/* This is just like the standard perform_relocation except we
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* use get_data and put_data which know about the ns32k
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* storage methods.
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* This is probably a lot more complicated than it needs to be!
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*/
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static bfd_reloc_status_type
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do_ns32k_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd,
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error_message, get_data, put_data)
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bfd *abfd;
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arelent *reloc_entry;
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struct symbol_cache_entry *symbol;
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PTR data;
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asection *input_section;
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bfd *output_bfd;
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char **error_message ATTRIBUTE_UNUSED;
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long (*get_data) ();
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int (*put_data) ();
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{
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int overflow = 0;
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bfd_vma relocation;
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bfd_reloc_status_type flag = bfd_reloc_ok;
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bfd_size_type addr = reloc_entry->address;
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bfd_vma output_base = 0;
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reloc_howto_type *howto = reloc_entry->howto;
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asection *reloc_target_output_section;
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if ((symbol->section == &bfd_abs_section)
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&& output_bfd != (bfd *) NULL)
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{
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reloc_entry->address += input_section->output_offset;
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return bfd_reloc_ok;
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}
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/* If we are not producing relocateable output, return an error if
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the symbol is not defined. An undefined weak symbol is
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considered to have a value of zero (SVR4 ABI, p. 4-27). */
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if (symbol->section == &bfd_und_section
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&& (symbol->flags & BSF_WEAK) == 0
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&& output_bfd == (bfd *) NULL)
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flag = bfd_reloc_undefined;
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/* Is the address of the relocation really within the section? */
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if (reloc_entry->address > input_section->_cooked_size)
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return bfd_reloc_outofrange;
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/* Work out which section the relocation is targetted at and the
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initial relocation command value. */
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/* Get symbol value. (Common symbols are special.) */
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if (bfd_is_com_section (symbol->section))
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relocation = 0;
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else
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relocation = symbol->value;
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reloc_target_output_section = symbol->section->output_section;
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/* Convert input-section-relative symbol value to absolute. */
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if (output_bfd && howto->partial_inplace == false)
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output_base = 0;
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else
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output_base = reloc_target_output_section->vma;
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relocation += output_base + symbol->section->output_offset;
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/* Add in supplied addend. */
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relocation += reloc_entry->addend;
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/* Here the variable relocation holds the final address of the
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symbol we are relocating against, plus any addend. */
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if (howto->pc_relative == true)
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{
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/* This is a PC relative relocation. We want to set RELOCATION
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to the distance between the address of the symbol and the
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location. RELOCATION is already the address of the symbol.
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We start by subtracting the address of the section containing
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the location.
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If pcrel_offset is set, we must further subtract the position
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of the location within the section. Some targets arrange for
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the addend to be the negative of the position of the location
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within the section; for example, i386-aout does this. For
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i386-aout, pcrel_offset is false. Some other targets do not
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include the position of the location; for example, m88kbcs,
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or ELF. For those targets, pcrel_offset is true.
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If we are producing relocateable output, then we must ensure
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that this reloc will be correctly computed when the final
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relocation is done. If pcrel_offset is false we want to wind
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up with the negative of the location within the section,
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which means we must adjust the existing addend by the change
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in the location within the section. If pcrel_offset is true
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we do not want to adjust the existing addend at all.
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FIXME: This seems logical to me, but for the case of
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producing relocateable output it is not what the code
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actually does. I don't want to change it, because it seems
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far too likely that something will break. */
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relocation -=
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input_section->output_section->vma + input_section->output_offset;
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if (howto->pcrel_offset == true)
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relocation -= reloc_entry->address;
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}
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if (output_bfd != (bfd *) NULL)
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{
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if (howto->partial_inplace == false)
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{
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/* This is a partial relocation, and we want to apply the relocation
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to the reloc entry rather than the raw data. Modify the reloc
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inplace to reflect what we now know. */
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reloc_entry->addend = relocation;
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reloc_entry->address += input_section->output_offset;
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return flag;
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}
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else
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{
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/* This is a partial relocation, but inplace, so modify the
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reloc record a bit.
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If we've relocated with a symbol with a section, change
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into a ref to the section belonging to the symbol. */
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reloc_entry->address += input_section->output_offset;
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/* WTF?? */
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if (abfd->xvec->flavour == bfd_target_coff_flavour)
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{
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#if 1
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/* For m68k-coff, the addend was being subtracted twice during
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relocation with -r. Removing the line below this comment
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fixes that problem; see PR 2953.
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However, Ian wrote the following, regarding removing the line below,
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which explains why it is still enabled: --djm
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If you put a patch like that into BFD you need to check all the COFF
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linkers. I am fairly certain that patch will break coff-i386 (e.g.,
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SCO); see coff_i386_reloc in coff-i386.c where I worked around the
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problem in a different way. There may very well be a reason that the
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code works as it does.
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Hmmm. The first obvious point is that bfd_perform_relocation should
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not have any tests that depend upon the flavour. It's seem like
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entirely the wrong place for such a thing. The second obvious point
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is that the current code ignores the reloc addend when producing
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relocateable output for COFF. That's peculiar. In fact, I really
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have no idea what the point of the line you want to remove is.
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A typical COFF reloc subtracts the old value of the symbol and adds in
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the new value to the location in the object file (if it's a pc
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relative reloc it adds the difference between the symbol value and the
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location). When relocating we need to preserve that property.
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BFD handles this by setting the addend to the negative of the old
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value of the symbol. Unfortunately it handles common symbols in a
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non-standard way (it doesn't subtract the old value) but that's a
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different story (we can't change it without losing backward
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compatibility with old object files) (coff-i386 does subtract the old
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value, to be compatible with existing coff-i386 targets, like SCO).
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So everything works fine when not producing relocateable output. When
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we are producing relocateable output, logically we should do exactly
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what we do when not producing relocateable output. Therefore, your
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patch is correct. In fact, it should probably always just set
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reloc_entry->addend to 0 for all cases, since it is, in fact, going to
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add the value into the object file. This won't hurt the COFF code,
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which doesn't use the addend; I'm not sure what it will do to other
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formats (the thing to check for would be whether any formats both use
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the addend and set partial_inplace).
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When I wanted to make coff-i386 produce relocateable output, I ran
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into the problem that you are running into: I wanted to remove that
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line. Rather than risk it, I made the coff-i386 relocs use a special
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function; it's coff_i386_reloc in coff-i386.c. The function
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specifically adds the addend field into the object file, knowing that
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bfd_perform_relocation is not going to. If you remove that line, then
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coff-i386.c will wind up adding the addend field in twice. It's
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trivial to fix; it just needs to be done.
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The problem with removing the line is just that it may break some
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working code. With BFD it's hard to be sure of anything. The right
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way to deal with this is simply to build and test at least all the
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supported COFF targets. It should be straightforward if time and disk
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space consuming. For each target:
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1) build the linker
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2) generate some executable, and link it using -r (I would
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probably use paranoia.o and link against newlib/libc.a, which
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for all the supported targets would be available in
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/usr/cygnus/progressive/H-host/target/lib/libc.a).
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3) make the change to reloc.c
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4) rebuild the linker
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5) repeat step 2
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6) if the resulting object files are the same, you have at least
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made it no worse
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7) if they are different you have to figure out which version is
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right
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*/
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relocation -= reloc_entry->addend;
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#endif
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reloc_entry->addend = 0;
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}
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else
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{
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reloc_entry->addend = relocation;
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}
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}
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}
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else
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{
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reloc_entry->addend = 0;
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}
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/* FIXME: This overflow checking is incomplete, because the value
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might have overflowed before we get here. For a correct check we
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need to compute the value in a size larger than bitsize, but we
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can't reasonably do that for a reloc the same size as a host
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machine word.
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FIXME: We should also do overflow checking on the result after
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adding in the value contained in the object file. */
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if (howto->complain_on_overflow != complain_overflow_dont)
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{
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bfd_vma check;
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/* Get the value that will be used for the relocation, but
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starting at bit position zero. */
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if (howto->rightshift > howto->bitpos)
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check = relocation >> (howto->rightshift - howto->bitpos);
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else
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check = relocation << (howto->bitpos - howto->rightshift);
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switch (howto->complain_on_overflow)
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{
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case complain_overflow_signed:
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{
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/* Assumes two's complement. */
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bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1;
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bfd_signed_vma reloc_signed_min = ~reloc_signed_max;
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/* The above right shift is incorrect for a signed value.
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Fix it up by forcing on the upper bits. */
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if (howto->rightshift > howto->bitpos
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&& (bfd_signed_vma) relocation < 0)
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check |= ((bfd_vma) - 1
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& ~((bfd_vma) - 1
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>> (howto->rightshift - howto->bitpos)));
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if ((bfd_signed_vma) check > reloc_signed_max
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|| (bfd_signed_vma) check < reloc_signed_min)
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flag = bfd_reloc_overflow;
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}
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break;
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case complain_overflow_unsigned:
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{
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/* Assumes two's complement. This expression avoids
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overflow if howto->bitsize is the number of bits in
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bfd_vma. */
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bfd_vma reloc_unsigned_max =
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(((1 << (howto->bitsize - 1)) - 1) << 1) | 1;
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if ((bfd_vma) check > reloc_unsigned_max)
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flag = bfd_reloc_overflow;
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}
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break;
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case complain_overflow_bitfield:
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{
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/* Assumes two's complement. This expression avoids
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overflow if howto->bitsize is the number of bits in
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bfd_vma. */
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bfd_vma reloc_bits = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1;
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if (((bfd_vma) check & ~reloc_bits) != 0
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&& ((bfd_vma) check & ~reloc_bits) != (-1 & ~reloc_bits))
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{
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/* The above right shift is incorrect for a signed
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value. See if turning on the upper bits fixes the
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overflow. */
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if (howto->rightshift > howto->bitpos
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&& (bfd_signed_vma) relocation < 0)
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{
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check |= ((bfd_vma) - 1
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& ~((bfd_vma) - 1
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>> (howto->rightshift - howto->bitpos)));
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if (((bfd_vma) check & ~reloc_bits) != (-1 & ~reloc_bits))
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flag = bfd_reloc_overflow;
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}
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else
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flag = bfd_reloc_overflow;
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}
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}
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break;
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default:
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abort ();
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}
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}
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/*
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Either we are relocating all the way, or we don't want to apply
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the relocation to the reloc entry (probably because there isn't
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any room in the output format to describe addends to relocs)
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*/
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/* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
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(OSF version 1.3, compiler version 3.11). It miscompiles the
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following program:
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struct str
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{
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unsigned int i0;
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} s = { 0 };
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int
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main ()
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{
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unsigned long x;
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x = 0x100000000;
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x <<= (unsigned long) s.i0;
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if (x == 0)
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printf ("failed\n");
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else
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printf ("succeeded (%lx)\n", x);
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}
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*/
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relocation >>= (bfd_vma) howto->rightshift;
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/* Shift everything up to where it's going to be used */
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relocation <<= (bfd_vma) howto->bitpos;
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/* Wait for the day when all have the mask in them */
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/* What we do:
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i instruction to be left alone
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o offset within instruction
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r relocation offset to apply
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S src mask
|
|
D dst mask
|
|
N ~dst mask
|
|
A part 1
|
|
B part 2
|
|
R result
|
|
|
|
Do this:
|
|
i i i i i o o o o o from bfd_get<size>
|
|
and S S S S S to get the size offset we want
|
|
+ r r r r r r r r r r to get the final value to place
|
|
and D D D D D to chop to right size
|
|
-----------------------
|
|
A A A A A
|
|
And this:
|
|
... i i i i i o o o o o from bfd_get<size>
|
|
and N N N N N get instruction
|
|
-----------------------
|
|
... B B B B B
|
|
|
|
And then:
|
|
B B B B B
|
|
or A A A A A
|
|
-----------------------
|
|
R R R R R R R R R R put into bfd_put<size>
|
|
*/
|
|
|
|
#define DOIT(x) \
|
|
x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
|
|
|
|
switch (howto->size)
|
|
{
|
|
case 0:
|
|
{
|
|
char x = get_data (data, addr, 1);
|
|
DOIT (x);
|
|
overflow = put_data(x, data, addr, 1);
|
|
}
|
|
break;
|
|
|
|
case 1:
|
|
if (relocation)
|
|
{
|
|
short x = get_data (data, addr, 2);
|
|
DOIT (x);
|
|
overflow = put_data(x, (unsigned char *) data, addr, 2);
|
|
}
|
|
break;
|
|
case 2:
|
|
if (relocation)
|
|
{
|
|
long x = get_data (data, addr, 4);
|
|
DOIT (x);
|
|
overflow = put_data(x, data, addr, 4);
|
|
}
|
|
break;
|
|
case -2:
|
|
{
|
|
long x = get_data(data, addr, 4);
|
|
relocation = -relocation;
|
|
DOIT(x);
|
|
overflow = put_data(x, data , addr, 4);
|
|
}
|
|
break;
|
|
|
|
case 3:
|
|
/* Do nothing */
|
|
break;
|
|
|
|
case 4:
|
|
#ifdef BFD64
|
|
if (relocation)
|
|
{
|
|
bfd_vma x = get_data (data, addr, 8);
|
|
DOIT (x);
|
|
overflow = put_data(x, data, addr, 8);
|
|
}
|
|
#else
|
|
abort ();
|
|
#endif
|
|
break;
|
|
default:
|
|
return bfd_reloc_other;
|
|
}
|
|
if ((howto->complain_on_overflow != complain_overflow_dont) && overflow)
|
|
return bfd_reloc_overflow;
|
|
|
|
return flag;
|
|
}
|
|
|
|
/* Relocate a given location using a given value and howto. */
|
|
|
|
bfd_reloc_status_type
|
|
_bfd_do_ns32k_reloc_contents ( howto, input_bfd, relocation, location,
|
|
get_data, put_data)
|
|
reloc_howto_type *howto;
|
|
bfd *input_bfd ATTRIBUTE_UNUSED;
|
|
bfd_vma relocation;
|
|
bfd_byte *location;
|
|
long (*get_data) ();
|
|
int (*put_data) ();
|
|
{
|
|
int size;
|
|
bfd_vma x;
|
|
boolean overflow;
|
|
|
|
/* If the size is negative, negate RELOCATION. This isn't very
|
|
general. */
|
|
if (howto->size < 0)
|
|
relocation = -relocation;
|
|
|
|
/* Get the value we are going to relocate. */
|
|
size = bfd_get_reloc_size (howto);
|
|
switch (size)
|
|
{
|
|
default:
|
|
case 0:
|
|
abort ();
|
|
case 1:
|
|
case 2:
|
|
case 4:
|
|
#ifdef BFD64
|
|
case 8:
|
|
#endif
|
|
x = get_data (location, 0, size);
|
|
break;
|
|
}
|
|
|
|
/* Check for overflow. FIXME: We may drop bits during the addition
|
|
which we don't check for. We must either check at every single
|
|
operation, which would be tedious, or we must do the computations
|
|
in a type larger than bfd_vma, which would be inefficient. */
|
|
overflow = false;
|
|
if (howto->complain_on_overflow != complain_overflow_dont)
|
|
{
|
|
bfd_vma check;
|
|
bfd_signed_vma signed_check;
|
|
bfd_vma add;
|
|
bfd_signed_vma signed_add;
|
|
|
|
if (howto->rightshift == 0)
|
|
{
|
|
check = relocation;
|
|
signed_check = (bfd_signed_vma) relocation;
|
|
}
|
|
else
|
|
{
|
|
/* Drop unwanted bits from the value we are relocating to. */
|
|
check = relocation >> howto->rightshift;
|
|
|
|
/* If this is a signed value, the rightshift just dropped
|
|
leading 1 bits (assuming twos complement). */
|
|
if ((bfd_signed_vma) relocation >= 0)
|
|
signed_check = check;
|
|
else
|
|
signed_check = (check
|
|
| ((bfd_vma) - 1
|
|
& ~((bfd_vma) - 1 >> howto->rightshift)));
|
|
}
|
|
|
|
/* Get the value from the object file. */
|
|
add = x & howto->src_mask;
|
|
|
|
/* Get the value from the object file with an appropriate sign.
|
|
The expression involving howto->src_mask isolates the upper
|
|
bit of src_mask. If that bit is set in the value we are
|
|
adding, it is negative, and we subtract out that number times
|
|
two. If src_mask includes the highest possible bit, then we
|
|
can not get the upper bit, but that does not matter since
|
|
signed_add needs no adjustment to become negative in that
|
|
case. */
|
|
signed_add = add;
|
|
if ((add & (((~howto->src_mask) >> 1) & howto->src_mask)) != 0)
|
|
signed_add -= (((~howto->src_mask) >> 1) & howto->src_mask) << 1;
|
|
|
|
/* Add the value from the object file, shifted so that it is a
|
|
straight number. */
|
|
if (howto->bitpos == 0)
|
|
{
|
|
check += add;
|
|
signed_check += signed_add;
|
|
}
|
|
else
|
|
{
|
|
check += add >> howto->bitpos;
|
|
|
|
/* For the signed case we use ADD, rather than SIGNED_ADD,
|
|
to avoid warnings from SVR4 cc. This is OK since we
|
|
explictly handle the sign bits. */
|
|
if (signed_add >= 0)
|
|
signed_check += add >> howto->bitpos;
|
|
else
|
|
signed_check += ((add >> howto->bitpos)
|
|
| ((bfd_vma) - 1
|
|
& ~((bfd_vma) - 1 >> howto->bitpos)));
|
|
}
|
|
|
|
switch (howto->complain_on_overflow)
|
|
{
|
|
case complain_overflow_signed:
|
|
{
|
|
/* Assumes two's complement. */
|
|
bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1;
|
|
bfd_signed_vma reloc_signed_min = ~reloc_signed_max;
|
|
|
|
if (signed_check > reloc_signed_max
|
|
|| signed_check < reloc_signed_min)
|
|
overflow = true;
|
|
}
|
|
break;
|
|
case complain_overflow_unsigned:
|
|
{
|
|
/* Assumes two's complement. This expression avoids
|
|
overflow if howto->bitsize is the number of bits in
|
|
bfd_vma. */
|
|
bfd_vma reloc_unsigned_max =
|
|
(((1 << (howto->bitsize - 1)) - 1) << 1) | 1;
|
|
|
|
if (check > reloc_unsigned_max)
|
|
overflow = true;
|
|
}
|
|
break;
|
|
case complain_overflow_bitfield:
|
|
{
|
|
/* Assumes two's complement. This expression avoids
|
|
overflow if howto->bitsize is the number of bits in
|
|
bfd_vma. */
|
|
bfd_vma reloc_bits = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1;
|
|
|
|
if ((check & ~reloc_bits) != 0
|
|
&& (((bfd_vma) signed_check & ~reloc_bits)
|
|
!= (-1 & ~reloc_bits)))
|
|
overflow = true;
|
|
}
|
|
break;
|
|
default:
|
|
abort ();
|
|
}
|
|
}
|
|
|
|
/* Put RELOCATION in the right bits. */
|
|
relocation >>= (bfd_vma) howto->rightshift;
|
|
relocation <<= (bfd_vma) howto->bitpos;
|
|
|
|
/* Add RELOCATION to the right bits of X. */
|
|
x = ((x & ~howto->dst_mask)
|
|
| (((x & howto->src_mask) + relocation) & howto->dst_mask));
|
|
|
|
/* Put the relocated value back in the object file. */
|
|
switch (size)
|
|
{
|
|
default:
|
|
case 0:
|
|
abort ();
|
|
case 1:
|
|
case 2:
|
|
case 4:
|
|
#ifdef BFD64
|
|
case 8:
|
|
#endif
|
|
put_data(x, location, 0, size);
|
|
break;
|
|
}
|
|
|
|
return overflow ? bfd_reloc_overflow : bfd_reloc_ok;
|
|
}
|
|
|
|
bfd_reloc_status_type
|
|
_bfd_ns32k_reloc_disp (abfd, reloc_entry, symbol, data, input_section,
|
|
output_bfd, error_message)
|
|
bfd *abfd;
|
|
arelent *reloc_entry;
|
|
struct symbol_cache_entry *symbol;
|
|
PTR data;
|
|
asection *input_section;
|
|
bfd *output_bfd;
|
|
char **error_message;
|
|
{
|
|
return do_ns32k_reloc (abfd, reloc_entry, symbol, data, input_section,
|
|
output_bfd, error_message,
|
|
_bfd_ns32k_get_displacement,
|
|
_bfd_ns32k_put_displacement);
|
|
}
|
|
|
|
bfd_reloc_status_type
|
|
_bfd_ns32k_reloc_imm (abfd, reloc_entry, symbol, data, input_section,
|
|
output_bfd, error_message)
|
|
bfd *abfd;
|
|
arelent *reloc_entry;
|
|
struct symbol_cache_entry *symbol;
|
|
PTR data;
|
|
asection *input_section;
|
|
bfd *output_bfd;
|
|
char **error_message;
|
|
{
|
|
return do_ns32k_reloc (abfd, reloc_entry, symbol, data, input_section,
|
|
output_bfd, error_message, _bfd_ns32k_get_immediate,
|
|
_bfd_ns32k_put_immediate);
|
|
}
|
|
|
|
bfd_reloc_status_type
|
|
_bfd_ns32k_final_link_relocate (howto, input_bfd, input_section, contents,
|
|
address, value, addend)
|
|
reloc_howto_type *howto;
|
|
bfd *input_bfd;
|
|
asection *input_section;
|
|
bfd_byte *contents;
|
|
bfd_vma address;
|
|
bfd_vma value;
|
|
bfd_vma addend;
|
|
{
|
|
bfd_vma relocation;
|
|
|
|
/* Sanity check the address. */
|
|
if (address > input_section->_cooked_size)
|
|
return bfd_reloc_outofrange;
|
|
|
|
/* This function assumes that we are dealing with a basic relocation
|
|
against a symbol. We want to compute the value of the symbol to
|
|
relocate to. This is just VALUE, the value of the symbol, plus
|
|
ADDEND, any addend associated with the reloc. */
|
|
relocation = value + addend;
|
|
|
|
/* If the relocation is PC relative, we want to set RELOCATION to
|
|
the distance between the symbol (currently in RELOCATION) and the
|
|
location we are relocating. Some targets (e.g., i386-aout)
|
|
arrange for the contents of the section to be the negative of the
|
|
offset of the location within the section; for such targets
|
|
pcrel_offset is false. Other targets (e.g., m88kbcs or ELF)
|
|
simply leave the contents of the section as zero; for such
|
|
targets pcrel_offset is true. If pcrel_offset is false we do not
|
|
need to subtract out the offset of the location within the
|
|
section (which is just ADDRESS). */
|
|
if (howto->pc_relative)
|
|
{
|
|
relocation -= (input_section->output_section->vma
|
|
+ input_section->output_offset);
|
|
if (howto->pcrel_offset)
|
|
relocation -= address;
|
|
}
|
|
|
|
return _bfd_ns32k_relocate_contents (howto, input_bfd, relocation,
|
|
contents + address);
|
|
}
|