1 /* BFD back-end for Sparc COFF files.
2 Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
25 #include "coff/sparc.h"
26 #include "coff/internal.h"
29 #define BADMAG(x) ((x).f_magic != SPARCMAGIC && (x).f_magic != LYNXCOFFMAGIC)
31 /* The page size is a guess based on ELF. */
32 #define COFF_PAGE_SIZE 0x10000
37 R_SPARC_8
, R_SPARC_16
, R_SPARC_32
,
38 R_SPARC_DISP8
, R_SPARC_DISP16
, R_SPARC_DISP32
,
39 R_SPARC_WDISP30
, R_SPARC_WDISP22
,
40 R_SPARC_HI22
, R_SPARC_22
,
41 R_SPARC_13
, R_SPARC_LO10
,
42 R_SPARC_GOT10
, R_SPARC_GOT13
, R_SPARC_GOT22
,
43 R_SPARC_PC10
, R_SPARC_PC22
,
46 R_SPARC_GLOB_DAT
, R_SPARC_JMP_SLOT
,
53 static CONST
char *CONST reloc_type_names
[] =
56 "R_SPARC_8", "R_SPARC_16", "R_SPARC_32",
57 "R_SPARC_DISP8", "R_SPARC_DISP16", "R_SPARC_DISP32",
58 "R_SPARC_WDISP30", "R_SPARC_WDISP22",
59 "R_SPARC_HI22", "R_SPARC_22",
60 "R_SPARC_13", "R_SPARC_LO10",
61 "R_SPARC_GOT10", "R_SPARC_GOT13", "R_SPARC_GOT22",
62 "R_SPARC_PC10", "R_SPARC_PC22",
65 "R_SPARC_GLOB_DAT", "R_SPARC_JMP_SLOT",
71 /* This is stolen pretty directly from elf.c. */
72 static bfd_reloc_status_type
73 bfd_coff_generic_reloc
PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
,
74 asection
*, bfd
*, char **));
76 static bfd_reloc_status_type
77 bfd_coff_generic_reloc (abfd
, reloc_entry
, symbol
, data
, input_section
,
78 output_bfd
, error_message
)
83 asection
*input_section
;
87 if (output_bfd
!= (bfd
*) NULL
88 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
89 && reloc_entry
->addend
== 0)
91 reloc_entry
->address
+= input_section
->output_offset
;
95 return bfd_reloc_continue
;
98 static reloc_howto_type coff_sparc_howto_table
[] =
100 HOWTO(R_SPARC_NONE
, 0,0, 0,false,0,complain_overflow_dont
, bfd_coff_generic_reloc
,"R_SPARC_NONE", false,0,0x00000000,true),
101 HOWTO(R_SPARC_8
, 0,0, 8,false,0,complain_overflow_bitfield
,bfd_coff_generic_reloc
,"R_SPARC_8", false,0,0x000000ff,true),
102 HOWTO(R_SPARC_16
, 0,1,16,false,0,complain_overflow_bitfield
,bfd_coff_generic_reloc
,"R_SPARC_16", false,0,0x0000ffff,true),
103 HOWTO(R_SPARC_32
, 0,2,32,false,0,complain_overflow_bitfield
,bfd_coff_generic_reloc
,"R_SPARC_32", false,0,0xffffffff,true),
104 HOWTO(R_SPARC_DISP8
, 0,0, 8,true, 0,complain_overflow_signed
, bfd_coff_generic_reloc
,"R_SPARC_DISP8", false,0,0x000000ff,true),
105 HOWTO(R_SPARC_DISP16
, 0,1,16,true, 0,complain_overflow_signed
, bfd_coff_generic_reloc
,"R_SPARC_DISP16", false,0,0x0000ffff,true),
106 HOWTO(R_SPARC_DISP32
, 0,2,32,true, 0,complain_overflow_signed
, bfd_coff_generic_reloc
,"R_SPARC_DISP32", false,0,0x00ffffff,true),
107 HOWTO(R_SPARC_WDISP30
, 2,2,30,true, 0,complain_overflow_signed
, bfd_coff_generic_reloc
,"R_SPARC_WDISP30", false,0,0x3fffffff,true),
108 HOWTO(R_SPARC_WDISP22
, 2,2,22,true, 0,complain_overflow_signed
, bfd_coff_generic_reloc
,"R_SPARC_WDISP22", false,0,0x003fffff,true),
109 HOWTO(R_SPARC_HI22
, 10,2,22,false,0,complain_overflow_dont
, bfd_coff_generic_reloc
,"R_SPARC_HI22", false,0,0x003fffff,true),
110 HOWTO(R_SPARC_22
, 0,2,22,false,0,complain_overflow_bitfield
,bfd_coff_generic_reloc
,"R_SPARC_22", false,0,0x003fffff,true),
111 HOWTO(R_SPARC_13
, 0,2,13,false,0,complain_overflow_bitfield
,bfd_coff_generic_reloc
,"R_SPARC_13", false,0,0x00001fff,true),
112 HOWTO(R_SPARC_LO10
, 0,2,10,false,0,complain_overflow_dont
, bfd_coff_generic_reloc
,"R_SPARC_LO10", false,0,0x000003ff,true),
113 HOWTO(R_SPARC_GOT10
, 0,2,10,false,0,complain_overflow_bitfield
,bfd_coff_generic_reloc
,"R_SPARC_GOT10", false,0,0x000003ff,true),
114 HOWTO(R_SPARC_GOT13
, 0,2,13,false,0,complain_overflow_bitfield
,bfd_coff_generic_reloc
,"R_SPARC_GOT13", false,0,0x00001fff,true),
115 HOWTO(R_SPARC_GOT22
, 10,2,22,false,0,complain_overflow_bitfield
,bfd_coff_generic_reloc
,"R_SPARC_GOT22", false,0,0x003fffff,true),
116 HOWTO(R_SPARC_PC10
, 0,2,10,false,0,complain_overflow_bitfield
,bfd_coff_generic_reloc
,"R_SPARC_PC10", false,0,0x000003ff,true),
117 HOWTO(R_SPARC_PC22
, 0,2,22,false,0,complain_overflow_bitfield
,bfd_coff_generic_reloc
,"R_SPARC_PC22", false,0,0x003fffff,true),
118 HOWTO(R_SPARC_WPLT30
, 0,0,00,false,0,complain_overflow_dont
, bfd_coff_generic_reloc
,"R_SPARC_WPLT30", false,0,0x00000000,true),
119 HOWTO(R_SPARC_COPY
, 0,0,00,false,0,complain_overflow_dont
, bfd_coff_generic_reloc
,"R_SPARC_COPY", false,0,0x00000000,true),
120 HOWTO(R_SPARC_GLOB_DAT
,0,0,00,false,0,complain_overflow_dont
, bfd_coff_generic_reloc
,"R_SPARC_GLOB_DAT",false,0,0x00000000,true),
121 HOWTO(R_SPARC_JMP_SLOT
,0,0,00,false,0,complain_overflow_dont
, bfd_coff_generic_reloc
,"R_SPARC_JMP_SLOT",false,0,0x00000000,true),
122 HOWTO(R_SPARC_RELATIVE
,0,0,00,false,0,complain_overflow_dont
, bfd_coff_generic_reloc
,"R_SPARC_RELATIVE",false,0,0x00000000,true),
123 HOWTO(R_SPARC_UA32
, 0,0,00,false,0,complain_overflow_dont
, bfd_coff_generic_reloc
,"R_SPARC_UA32", false,0,0x00000000,true),
126 struct coff_reloc_map
{
127 unsigned char bfd_reloc_val
;
128 unsigned char coff_reloc_val
;
131 static CONST
struct coff_reloc_map sparc_reloc_map
[] =
133 { BFD_RELOC_NONE
, R_SPARC_NONE
, },
134 { BFD_RELOC_16
, R_SPARC_16
, },
135 { BFD_RELOC_8
, R_SPARC_8
},
136 { BFD_RELOC_8_PCREL
, R_SPARC_DISP8
},
137 { BFD_RELOC_CTOR
, R_SPARC_32
}, /* @@ Assumes 32 bits. */
138 { BFD_RELOC_32
, R_SPARC_32
},
139 { BFD_RELOC_32_PCREL
, R_SPARC_DISP32
},
140 { BFD_RELOC_HI22
, R_SPARC_HI22
},
141 { BFD_RELOC_LO10
, R_SPARC_LO10
, },
142 { BFD_RELOC_32_PCREL_S2
, R_SPARC_WDISP30
},
143 { BFD_RELOC_SPARC22
, R_SPARC_22
},
144 { BFD_RELOC_SPARC13
, R_SPARC_13
},
145 { BFD_RELOC_SPARC_GOT10
, R_SPARC_GOT10
},
146 { BFD_RELOC_SPARC_GOT13
, R_SPARC_GOT13
},
147 { BFD_RELOC_SPARC_GOT22
, R_SPARC_GOT22
},
148 { BFD_RELOC_SPARC_PC10
, R_SPARC_PC10
},
149 { BFD_RELOC_SPARC_PC22
, R_SPARC_PC22
},
150 { BFD_RELOC_SPARC_WPLT30
, R_SPARC_WPLT30
},
151 { BFD_RELOC_SPARC_COPY
, R_SPARC_COPY
},
152 { BFD_RELOC_SPARC_GLOB_DAT
, R_SPARC_GLOB_DAT
},
153 { BFD_RELOC_SPARC_JMP_SLOT
, R_SPARC_JMP_SLOT
},
154 { BFD_RELOC_SPARC_RELATIVE
, R_SPARC_RELATIVE
},
155 { BFD_RELOC_SPARC_WDISP22
, R_SPARC_WDISP22
},
156 /* { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */
159 static CONST
struct reloc_howto_struct
*
160 coff_sparc_reloc_type_lookup (abfd
, code
)
162 bfd_reloc_code_real_type code
;
165 for (i
= 0; i
< sizeof (sparc_reloc_map
) / sizeof (struct coff_reloc_map
); i
++)
167 if (sparc_reloc_map
[i
].bfd_reloc_val
== code
)
168 return &coff_sparc_howto_table
[(int) sparc_reloc_map
[i
].coff_reloc_val
];
172 #define coff_bfd_reloc_type_lookup coff_sparc_reloc_type_lookup
175 rtype2howto (cache_ptr
, dst
)
177 struct internal_reloc
*dst
;
179 BFD_ASSERT (dst
->r_type
< (unsigned int) R_SPARC_max
);
180 cache_ptr
->howto
= &coff_sparc_howto_table
[dst
->r_type
];
183 #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
185 #define SWAP_IN_RELOC_OFFSET bfd_h_get_32
186 #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
187 /* This is just like the standard one, except for the addition of the
188 last line, the adjustment of the addend. */
189 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
191 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
192 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
193 coffsym = (obj_symbols (abfd) \
194 + (cache_ptr->sym_ptr_ptr - symbols)); \
196 coffsym = coff_symbol_from (abfd, ptr); \
197 if (coffsym != (coff_symbol_type *) NULL \
198 && coffsym->native->u.syment.n_scnum == 0) \
199 cache_ptr->addend = 0; \
200 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
201 && ptr->section != (asection *) NULL) \
202 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
204 cache_ptr->addend = 0; \
205 cache_ptr->addend += reloc.r_offset; \
208 /* Clear the r_spare field in relocs. */
209 #define SWAP_OUT_RELOC_EXTRA(abfd,src,dst) \
211 dst->r_spare[0] = 0; \
212 dst->r_spare[1] = 0; \
215 #define __A_MAGIC_SET__
217 /* Enable Sparc-specific hacks in coffcode.h. */
221 #include "coffcode.h"
233 "coff-sparc", /* name */
235 bfd_target_coff_flavour
,
236 true, /* data byte order is big */
237 true, /* header byte order is big */
239 (HAS_RELOC
| EXEC_P
| /* object flags */
240 HAS_LINENO
| HAS_DEBUG
|
241 HAS_SYMS
| HAS_LOCALS
| DYNAMIC
| WP_TEXT
| D_PAGED
),
243 (SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
), /* section flags */
244 0, /* leading underscore */
245 '/', /* ar_pad_char */
246 15, /* ar_max_namelen */
248 2, /* minimum alignment power */
249 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
250 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
251 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
, /* data */
252 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
253 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
254 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
, /* hdrs */
256 /* Note that we allow an object file to be treated as a core file as well. */
257 {_bfd_dummy_target
, coff_object_p
, /* bfd_check_format */
258 bfd_generic_archive_p
, coff_object_p
},
259 {bfd_false
, coff_mkobject
, _bfd_generic_mkarchive
, /* bfd_set_format */
261 {bfd_false
, coff_write_object_contents
, /* bfd_write_contents */
262 _bfd_write_archive_contents
, bfd_false
},
264 BFD_JUMP_TABLE_GENERIC (coff
),
265 BFD_JUMP_TABLE_COPY (coff
),
266 BFD_JUMP_TABLE_CORE (_bfd_nocore
),
267 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff
),
268 BFD_JUMP_TABLE_SYMBOLS (coff
),
269 BFD_JUMP_TABLE_RELOCS (coff
),
270 BFD_JUMP_TABLE_WRITE (coff
),
271 BFD_JUMP_TABLE_LINK (coff
),
272 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic
),