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252b5132 | 1 | /* BFD back-end for Sparc COFF files. |
5a65713f | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001 |
5f771d47 | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by Cygnus Support. |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
24 | #include "libbfd.h" | |
25 | #include "coff/sparc.h" | |
26 | #include "coff/internal.h" | |
27 | #include "libcoff.h" | |
28 | ||
29 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) | |
30 | ||
31 | #define BADMAG(x) ((x).f_magic != SPARCMAGIC && (x).f_magic != LYNXCOFFMAGIC) | |
32 | ||
33 | /* The page size is a guess based on ELF. */ | |
34 | #define COFF_PAGE_SIZE 0x10000 | |
35 | ||
5a65713f AJ |
36 | |
37 | static reloc_howto_type *coff_sparc_reloc_type_lookup | |
38 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
39 | static void rtype2howto PARAMS ((arelent *, struct internal_reloc *)); | |
dc810e39 | 40 | |
252b5132 RH |
41 | enum reloc_type |
42 | { | |
43 | R_SPARC_NONE = 0, | |
cbfe05c4 KH |
44 | R_SPARC_8, R_SPARC_16, R_SPARC_32, |
45 | R_SPARC_DISP8, R_SPARC_DISP16, R_SPARC_DISP32, | |
252b5132 RH |
46 | R_SPARC_WDISP30, R_SPARC_WDISP22, |
47 | R_SPARC_HI22, R_SPARC_22, | |
48 | R_SPARC_13, R_SPARC_LO10, | |
49 | R_SPARC_GOT10, R_SPARC_GOT13, R_SPARC_GOT22, | |
50 | R_SPARC_PC10, R_SPARC_PC22, | |
51 | R_SPARC_WPLT30, | |
52 | R_SPARC_COPY, | |
53 | R_SPARC_GLOB_DAT, R_SPARC_JMP_SLOT, | |
54 | R_SPARC_RELATIVE, | |
55 | R_SPARC_UA32, | |
56 | R_SPARC_max | |
57 | }; | |
58 | ||
59 | #if 0 | |
dc810e39 | 60 | static const char *const reloc_type_names[] = |
252b5132 RH |
61 | { |
62 | "R_SPARC_NONE", | |
63 | "R_SPARC_8", "R_SPARC_16", "R_SPARC_32", | |
64 | "R_SPARC_DISP8", "R_SPARC_DISP16", "R_SPARC_DISP32", | |
65 | "R_SPARC_WDISP30", "R_SPARC_WDISP22", | |
66 | "R_SPARC_HI22", "R_SPARC_22", | |
67 | "R_SPARC_13", "R_SPARC_LO10", | |
68 | "R_SPARC_GOT10", "R_SPARC_GOT13", "R_SPARC_GOT22", | |
69 | "R_SPARC_PC10", "R_SPARC_PC22", | |
70 | "R_SPARC_WPLT30", | |
71 | "R_SPARC_COPY", | |
72 | "R_SPARC_GLOB_DAT", "R_SPARC_JMP_SLOT", | |
73 | "R_SPARC_RELATIVE", | |
74 | "R_SPARC_UA32", | |
75 | }; | |
76 | #endif | |
77 | ||
78 | /* This is stolen pretty directly from elf.c. */ | |
79 | static bfd_reloc_status_type | |
80 | bfd_coff_generic_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, | |
81 | asection *, bfd *, char **)); | |
82 | ||
83 | static bfd_reloc_status_type | |
84 | bfd_coff_generic_reloc (abfd, reloc_entry, symbol, data, input_section, | |
85 | output_bfd, error_message) | |
5f771d47 | 86 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
87 | arelent *reloc_entry; |
88 | asymbol *symbol; | |
5f771d47 | 89 | PTR data ATTRIBUTE_UNUSED; |
252b5132 RH |
90 | asection *input_section; |
91 | bfd *output_bfd; | |
5f771d47 | 92 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
93 | { |
94 | if (output_bfd != (bfd *) NULL | |
95 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
96 | { | |
97 | reloc_entry->address += input_section->output_offset; | |
98 | return bfd_reloc_ok; | |
99 | } | |
100 | ||
101 | return bfd_reloc_continue; | |
102 | } | |
103 | ||
cbfe05c4 | 104 | static reloc_howto_type coff_sparc_howto_table[] = |
252b5132 RH |
105 | { |
106 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_NONE", false,0,0x00000000,true), | |
107 | HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_8", false,0,0x000000ff,true), | |
108 | HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_16", false,0,0x0000ffff,true), | |
109 | HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_32", false,0,0xffffffff,true), | |
110 | HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP8", false,0,0x000000ff,true), | |
111 | HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP16", false,0,0x0000ffff,true), | |
112 | HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP32", false,0,0x00ffffff,true), | |
113 | HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP30", false,0,0x3fffffff,true), | |
114 | HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP22", false,0,0x003fffff,true), | |
115 | HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_HI22", false,0,0x003fffff,true), | |
116 | HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_22", false,0,0x003fffff,true), | |
117 | HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_13", false,0,0x00001fff,true), | |
118 | HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_LO10", false,0,0x000003ff,true), | |
119 | HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT10", false,0,0x000003ff,true), | |
120 | HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT13", false,0,0x00001fff,true), | |
121 | HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT22", false,0,0x003fffff,true), | |
122 | HOWTO(R_SPARC_PC10, 0,2,10,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC10", false,0,0x000003ff,true), | |
123 | HOWTO(R_SPARC_PC22, 0,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC22", false,0,0x003fffff,true), | |
124 | HOWTO(R_SPARC_WPLT30, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_WPLT30", false,0,0x00000000,true), | |
125 | HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_COPY", false,0,0x00000000,true), | |
126 | 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), | |
127 | 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), | |
128 | HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_RELATIVE",false,0,0x00000000,true), | |
129 | HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_UA32", false,0,0x00000000,true), | |
130 | }; | |
131 | ||
132 | struct coff_reloc_map { | |
133 | bfd_reloc_code_real_type bfd_reloc_val; | |
134 | unsigned char coff_reloc_val; | |
135 | }; | |
136 | ||
dc810e39 | 137 | static const struct coff_reloc_map sparc_reloc_map[] = |
252b5132 RH |
138 | { |
139 | { BFD_RELOC_NONE, R_SPARC_NONE, }, | |
140 | { BFD_RELOC_16, R_SPARC_16, }, | |
141 | { BFD_RELOC_8, R_SPARC_8 }, | |
142 | { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, | |
143 | { BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */ | |
144 | { BFD_RELOC_32, R_SPARC_32 }, | |
145 | { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, | |
146 | { BFD_RELOC_HI22, R_SPARC_HI22 }, | |
147 | { BFD_RELOC_LO10, R_SPARC_LO10, }, | |
148 | { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, | |
149 | { BFD_RELOC_SPARC22, R_SPARC_22 }, | |
150 | { BFD_RELOC_SPARC13, R_SPARC_13 }, | |
151 | { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, | |
152 | { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, | |
153 | { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, | |
154 | { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, | |
155 | { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, | |
156 | { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, | |
157 | { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, | |
158 | { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, | |
159 | { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, | |
160 | { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, | |
161 | { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, | |
162 | /* { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */ | |
163 | }; | |
164 | ||
165 | static reloc_howto_type * | |
166 | coff_sparc_reloc_type_lookup (abfd, code) | |
5f771d47 | 167 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
168 | bfd_reloc_code_real_type code; |
169 | { | |
170 | unsigned int i; | |
171 | for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct coff_reloc_map); i++) | |
172 | { | |
173 | if (sparc_reloc_map[i].bfd_reloc_val == code) | |
174 | return &coff_sparc_howto_table[(int) sparc_reloc_map[i].coff_reloc_val]; | |
175 | } | |
176 | return 0; | |
177 | } | |
178 | #define coff_bfd_reloc_type_lookup coff_sparc_reloc_type_lookup | |
179 | ||
180 | static void | |
181 | rtype2howto (cache_ptr, dst) | |
182 | arelent *cache_ptr; | |
183 | struct internal_reloc *dst; | |
184 | { | |
185 | BFD_ASSERT (dst->r_type < (unsigned int) R_SPARC_max); | |
186 | cache_ptr->howto = &coff_sparc_howto_table[dst->r_type]; | |
187 | } | |
188 | ||
189 | #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry) | |
190 | ||
dc810e39 AM |
191 | #define SWAP_IN_RELOC_OFFSET H_GET_32 |
192 | #define SWAP_OUT_RELOC_OFFSET H_PUT_32 | |
252b5132 RH |
193 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ |
194 | cache_ptr->addend = reloc.r_offset; | |
195 | ||
196 | /* Clear the r_spare field in relocs. */ | |
197 | #define SWAP_OUT_RELOC_EXTRA(abfd,src,dst) \ | |
198 | do { \ | |
199 | dst->r_spare[0] = 0; \ | |
200 | dst->r_spare[1] = 0; \ | |
201 | } while (0) | |
202 | ||
203 | #define __A_MAGIC_SET__ | |
204 | ||
cbfe05c4 | 205 | /* Enable Sparc-specific hacks in coffcode.h. */ |
252b5132 RH |
206 | |
207 | #define COFF_SPARC | |
208 | ||
209 | #include "coffcode.h" | |
210 | ||
c3c89269 NC |
211 | #ifndef TARGET_SYM |
212 | #define TARGET_SYM sparccoff_vec | |
252b5132 | 213 | #endif |
252b5132 | 214 | |
c3c89269 NC |
215 | #ifndef TARGET_NAME |
216 | #define TARGET_NAME "coff-sparc" | |
217 | #endif | |
252b5132 | 218 | |
c3c89269 | 219 | CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, '_', NULL) |