1 /* Intel 860 specific support for 32-bit ELF
2 Copyright 1999 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
26 static bfd_reloc_status_type elf32_i960_relocate
27 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
28 static reloc_howto_type *elf32_i960_reloc_type_lookup
29 PARAMS ((bfd *, bfd_reloc_code_real_type));
33 #define bfd_elf32_bfd_reloc_type_lookup elf32_i960_reloc_type_lookup
34 #define elf_info_to_howto elf32_i960_info_to_howto
35 #define elf_info_to_howto_rel elf32_i960_info_to_howto_rel
37 static reloc_howto_type elf_howto_table[]=
39 HOWTO(R_960_NONE, 0, 0, 0, false, 0, complain_overflow_bitfield,
40 elf32_i960_relocate, "R_960_NONE", true,
41 0x00000000, 0x00000000, false),
43 HOWTO (R_960_32, 0, 2, 32, false, 0, complain_overflow_bitfield,
44 elf32_i960_relocate, "R_960_32", true,
45 0xffffffff, 0xffffffff, false),
46 HOWTO (R_960_IP24, 0, 2, 24, true, 0, complain_overflow_signed,
47 elf32_i960_relocate, "R_960_IP24 ", true,
48 0x00ffffff, 0x00ffffff, false),
55 static enum elf_i960_reloc_type
56 elf32_i960_bfd_to_reloc_type (bfd_reloc_code_real_type code)
62 case BFD_RELOC_I960_CALLJ:
67 case BFD_RELOC_24_PCREL:
73 elf32_i960_info_to_howto (abfd, cache_ptr, dst)
74 bfd *abfd ATTRIBUTE_UNUSED;
75 arelent *cache_ptr ATTRIBUTE_UNUSED;
76 Elf32_Internal_Rela *dst ATTRIBUTE_UNUSED;
82 elf32_i960_info_to_howto_rel (abfd, cache_ptr, dst)
83 bfd *abfd ATTRIBUTE_UNUSED;
85 Elf32_Internal_Rel *dst;
87 enum elf_i960_reloc_type type;
89 type = (enum elf_i960_reloc_type) ELF32_R_TYPE (dst->r_info);
90 BFD_ASSERT (type < R_960_max);
92 cache_ptr->howto = &elf_howto_table[(int) type];
95 /* ELF relocs are against symbols. If we are producing relocateable
96 output, and the reloc is against an external symbol, and nothing
97 has given us any additional addend, the resulting reloc will also
98 be against the same symbol. In such a case, we don't want to
99 change anything about the way the reloc is handled, since it will
100 all be done at final link time. Rather than put special case code
101 into bfd_perform_relocation, all the reloc types use this howto
102 function. It just short circuits the reloc if producing
103 relocateable output against an external symbol. */
106 bfd_reloc_status_type
107 elf32_i960_relocate (abfd,
114 bfd *abfd ATTRIBUTE_UNUSED;
115 arelent *reloc_entry;
117 PTR data ATTRIBUTE_UNUSED;
118 asection *input_section;
120 char **error_message ATTRIBUTE_UNUSED;
122 /* HACK: I think this first condition is necessary when producing
123 relocatable output. After the end of HACK, the code is identical
124 to bfd_elf_generic_reloc(). I would _guess_ the first change
125 belongs there rather than here. martindo 1998-10-23. */
126 if (output_bfd != (bfd *) NULL
127 && reloc_entry->howto->pc_relative
128 && !reloc_entry->howto->pcrel_offset)
130 reloc_entry->addend -= symbol->value;
132 /* This is more dubious. */
133 else if (output_bfd != (bfd *) NULL
134 && (symbol->flags & BSF_SECTION_SYM) != 0)
136 reloc_entry->addend -= symbol->section->output_section->vma;
141 if (output_bfd != (bfd *) NULL
142 && (symbol->flags & BSF_SECTION_SYM) == 0
143 && (! reloc_entry->howto->partial_inplace
144 || reloc_entry->addend == 0))
146 reloc_entry->address += input_section->output_offset;
151 return bfd_reloc_continue;
154 static reloc_howto_type *
155 elf32_i960_reloc_type_lookup (abfd, code)
156 bfd *abfd ATTRIBUTE_UNUSED;
157 bfd_reloc_code_real_type code;
159 return elf_howto_table + elf32_i960_bfd_to_reloc_type (code);
162 #define TARGET_LITTLE_SYM bfd_elf32_i960_vec
163 #define TARGET_LITTLE_NAME "elf32-i960"
164 #define ELF_ARCH bfd_arch_i960
165 #define ELF_MACHINE_CODE EM_960
166 #define ELF_MAXPAGESIZE 1 /* FIXME: This number is wrong, It should be the page size in bytes. */
168 #include "elf32-target.h"