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252b5132 RH |
1 | /* BFD back-end for Apollo 68000 COFF binaries. |
2 | Copyright 1990, 91, 92, 93, 94, 95, 1997 Free Software Foundation, Inc. | |
3 | By Troy Rollo (troy@cbme.unsw.edu.au) | |
4 | Based on m68k standard COFF version 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/apollo.h" | |
26 | #include "coff/internal.h" | |
27 | #include "libcoff.h" | |
28 | ||
29 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) | |
30 | ||
31 | #ifdef ONLY_DECLARE_RELOCS | |
32 | extern reloc_howto_type apollocoff_howto_table[]; | |
33 | #else | |
34 | reloc_howto_type apollocoff_howto_table[] = | |
35 | { | |
36 | HOWTO(R_RELBYTE, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "8", true, 0x000000ff,0x000000ff, false), | |
37 | HOWTO(R_RELWORD, 0, 1, 16, false, 0, complain_overflow_bitfield, 0, "16", true, 0x0000ffff,0x0000ffff, false), | |
38 | HOWTO(R_RELLONG, 0, 2, 32, false, 0, complain_overflow_bitfield, 0, "32", true, 0xffffffff,0xffffffff, false), | |
39 | HOWTO(R_PCRBYTE, 0, 0, 8, true, 0, complain_overflow_signed, 0, "DISP8", true, 0x000000ff,0x000000ff, false), | |
40 | HOWTO(R_PCRWORD, 0, 1, 16, true, 0, complain_overflow_signed, 0, "DISP16", true, 0x0000ffff,0x0000ffff, false), | |
41 | HOWTO(R_PCRLONG, 0, 2, 32, true, 0, complain_overflow_signed, 0, "DISP32", true, 0xffffffff,0xffffffff, false), | |
42 | HOWTO(R_RELLONG_NEG, 0, -2, 32, false, 0, complain_overflow_bitfield, 0, "-32", true, 0xffffffff,0xffffffff, false), | |
43 | }; | |
44 | #endif /* not ONLY_DECLARE_RELOCS */ | |
45 | ||
46 | #ifndef BADMAG | |
47 | #define BADMAG(x) M68KBADMAG(x) | |
48 | #endif | |
49 | #define APOLLO_M68 1 /* Customize coffcode.h */ | |
50 | ||
51 | /* Turn a howto into a reloc number */ | |
52 | ||
53 | #ifdef ONLY_DECLARE_RELOCS | |
54 | extern void apollo_rtype2howto PARAMS ((arelent *internal, int relocentry)); | |
55 | extern int apollo_howto2rtype PARAMS ((reloc_howto_type *)); | |
56 | #else | |
57 | void | |
58 | apollo_rtype2howto(internal, relocentry) | |
59 | arelent *internal; | |
60 | int relocentry; | |
61 | { | |
62 | switch (relocentry) | |
63 | { | |
64 | case R_RELBYTE: internal->howto = apollocoff_howto_table + 0; break; | |
65 | case R_RELWORD: internal->howto = apollocoff_howto_table + 1; break; | |
66 | case R_RELLONG: internal->howto = apollocoff_howto_table + 2; break; | |
67 | case R_PCRBYTE: internal->howto = apollocoff_howto_table + 3; break; | |
68 | case R_PCRWORD: internal->howto = apollocoff_howto_table + 4; break; | |
69 | case R_PCRLONG: internal->howto = apollocoff_howto_table + 5; break; | |
70 | case R_RELLONG_NEG: internal->howto = apollocoff_howto_table + 6; break; | |
71 | } | |
72 | } | |
73 | ||
74 | int | |
75 | apollo_howto2rtype (internal) | |
76 | reloc_howto_type *internal; | |
77 | { | |
78 | if (internal->pc_relative) | |
79 | { | |
80 | switch (internal->bitsize) | |
81 | { | |
82 | case 32: return R_PCRLONG; | |
83 | case 16: return R_PCRWORD; | |
84 | case 8: return R_PCRBYTE; | |
85 | } | |
86 | } | |
87 | else | |
88 | { | |
89 | switch (internal->bitsize) | |
90 | { | |
91 | case 32: return R_RELLONG; | |
92 | case 16: return R_RELWORD; | |
93 | case 8: return R_RELBYTE; | |
94 | } | |
95 | } | |
96 | return R_RELLONG; | |
97 | } | |
98 | #endif /* not ONLY_DECLARE_RELOCS */ | |
99 | ||
100 | #define RTYPE2HOWTO(internal, relocentry) \ | |
101 | apollo_rtype2howto(internal, (relocentry)->r_type) | |
102 | ||
103 | #define SELECT_RELOC(external, internal) \ | |
104 | external.r_type = apollo_howto2rtype(internal); | |
105 | ||
106 | #include "coffcode.h" | |
107 | ||
c3c89269 NC |
108 | #ifndef TARGET_SYM |
109 | #define TARGET_SYM apollocoff_vec | |
252b5132 | 110 | #endif |
252b5132 | 111 | |
c3c89269 NC |
112 | #ifndef TARGET_NAME |
113 | #define TARGET_NAME "apollo-m68k" | |
114 | #endif | |
252b5132 | 115 | |
252b5132 | 116 | #ifdef NAMES_HAVE_UNDERSCORE |
c3c89269 | 117 | CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, '_', NULL) |
252b5132 | 118 | #else |
c3c89269 | 119 | CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, 0, NULL) |
252b5132 | 120 | #endif |