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99c513f6 | 1 | /* RL78 ELF support for BFD. |
250d07de | 2 | Copyright (C) 2008-2021 Free Software Foundation, Inc. |
99c513f6 DD |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
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 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
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. | |
15 | ||
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 Foundation, | |
18 | Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ | |
19 | ||
20 | #ifndef _ELF_RL78_H | |
21 | #define _ELF_RL78_H | |
22 | ||
23 | #include "elf/reloc-macros.h" | |
24 | ||
25 | /* Note that there are a few internal relocation types used by the | |
26 | linker to do link-time relaxation. If you update this file, please | |
27 | check elf32-rl78.c to see if any of the internal relocations need to | |
28 | be, er, relocated. */ | |
29 | ||
30 | /* Preliminary relocations. */ | |
31 | START_RELOC_NUMBERS (elf_rl78_reloc_type) | |
32 | ||
33 | RELOC_NUMBER (R_RL78_NONE, 0x00) | |
34 | /* These are for data, and are bi-endian. */ | |
35 | RELOC_NUMBER (R_RL78_DIR32, 0x01) /* Was: R_RL78_32. */ | |
36 | RELOC_NUMBER (R_RL78_DIR24S, 0x02) /* Was: R_RL78_24. */ | |
37 | RELOC_NUMBER (R_RL78_DIR16, 0x03) | |
38 | RELOC_NUMBER (R_RL78_DIR16U, 0x04) /* Was: R_RL78_16_UNS. */ | |
39 | RELOC_NUMBER (R_RL78_DIR16S, 0x05) /* Was: R_RL78_16. */ | |
40 | RELOC_NUMBER (R_RL78_DIR8, 0x06) | |
41 | RELOC_NUMBER (R_RL78_DIR8U, 0x07) /* Was: R_RL78_8_UNS. */ | |
42 | RELOC_NUMBER (R_RL78_DIR8S, 0x08) /* Was: R_RL78_8. */ | |
43 | ||
44 | /* Signed pc-relative values. */ | |
45 | RELOC_NUMBER (R_RL78_DIR24S_PCREL, 0x09) /* Was: R_RL78_24_PCREL. */ | |
46 | RELOC_NUMBER (R_RL78_DIR16S_PCREL, 0x0a) /* Was: R_RL78_16_PCREL. */ | |
47 | RELOC_NUMBER (R_RL78_DIR8S_PCREL, 0x0b) /* Was: R_RL78_8_PCREL. */ | |
48 | ||
49 | /* These are for fields in the instructions. */ | |
50 | RELOC_NUMBER (R_RL78_DIR16UL, 0x0c) | |
51 | RELOC_NUMBER (R_RL78_DIR16UW, 0x0d) | |
52 | RELOC_NUMBER (R_RL78_DIR8UL, 0x0e) | |
53 | RELOC_NUMBER (R_RL78_DIR8UW, 0x0f) | |
54 | RELOC_NUMBER (R_RL78_DIR32_REV, 0x10) | |
55 | RELOC_NUMBER (R_RL78_DIR16_REV, 0x11) | |
56 | RELOC_NUMBER (R_RL78_DIR3U_PCREL, 0x12) | |
57 | ||
9cea966c DD |
58 | /* These are extensions added by Red Hat. */ |
59 | RELOC_NUMBER (R_RL78_RH_RELAX, 0x2d) /* Marks opcodes suitable for linker relaxation. */ | |
60 | RELOC_NUMBER (R_RL78_RH_SFR, 0x2e) /* SFR addresses - internal use only. */ | |
61 | RELOC_NUMBER (R_RL78_RH_SADDR, 0x2f) /* SADDR addresses - internal use only.. */ | |
62 | ||
99c513f6 DD |
63 | /* These are for complex relocs. */ |
64 | RELOC_NUMBER (R_RL78_ABS32, 0x41) | |
65 | RELOC_NUMBER (R_RL78_ABS24S, 0x42) | |
66 | RELOC_NUMBER (R_RL78_ABS16, 0x43) | |
67 | RELOC_NUMBER (R_RL78_ABS16U, 0x44) | |
68 | RELOC_NUMBER (R_RL78_ABS16S, 0x45) | |
69 | RELOC_NUMBER (R_RL78_ABS8, 0x46) | |
70 | RELOC_NUMBER (R_RL78_ABS8U, 0x47) | |
71 | RELOC_NUMBER (R_RL78_ABS8S, 0x48) | |
72 | RELOC_NUMBER (R_RL78_ABS24S_PCREL, 0x49) | |
73 | RELOC_NUMBER (R_RL78_ABS16S_PCREL, 0x4a) | |
74 | RELOC_NUMBER (R_RL78_ABS8S_PCREL, 0x4b) | |
75 | RELOC_NUMBER (R_RL78_ABS16UL, 0x4c) | |
76 | RELOC_NUMBER (R_RL78_ABS16UW, 0x4d) | |
77 | RELOC_NUMBER (R_RL78_ABS8UL, 0x4e) | |
78 | RELOC_NUMBER (R_RL78_ABS8UW, 0x4f) | |
79 | RELOC_NUMBER (R_RL78_ABS32_REV, 0x50) | |
80 | RELOC_NUMBER (R_RL78_ABS16_REV, 0x51) | |
81 | ||
82 | RELOC_NUMBER (R_RL78_SYM, 0x80) | |
83 | RELOC_NUMBER (R_RL78_OPneg, 0x81) | |
84 | RELOC_NUMBER (R_RL78_OPadd, 0x82) | |
85 | RELOC_NUMBER (R_RL78_OPsub, 0x83) | |
86 | RELOC_NUMBER (R_RL78_OPmul, 0x84) | |
87 | RELOC_NUMBER (R_RL78_OPdiv, 0x85) | |
88 | RELOC_NUMBER (R_RL78_OPshla, 0x86) | |
89 | RELOC_NUMBER (R_RL78_OPshra, 0x87) | |
90 | RELOC_NUMBER (R_RL78_OPsctsize, 0x88) | |
91 | RELOC_NUMBER (R_RL78_OPscttop, 0x8d) | |
92 | RELOC_NUMBER (R_RL78_OPand, 0x90) | |
93 | RELOC_NUMBER (R_RL78_OPor, 0x91) | |
94 | RELOC_NUMBER (R_RL78_OPxor, 0x92) | |
95 | RELOC_NUMBER (R_RL78_OPnot, 0x93) | |
96 | RELOC_NUMBER (R_RL78_OPmod, 0x94) | |
97 | RELOC_NUMBER (R_RL78_OPromtop, 0x95) | |
98 | RELOC_NUMBER (R_RL78_OPramtop, 0x96) | |
99 | ||
100 | END_RELOC_NUMBERS (R_RL78_max) | |
101 | ||
102 | #define EF_RL78_CPU_RL78 0x00000079 /* FIXME: correct value? */ | |
103 | #define EF_RL78_CPU_MASK 0x0000007F /* specific cpu bits. */ | |
104 | #define EF_RL78_ALL_FLAGS (EF_RL78_CPU_MASK) | |
105 | ||
106 | /* Values for the e_flags field in the ELF header. */ | |
4046d87a | 107 | #define E_FLAG_RL78_64BIT_DOUBLES (1 << 0) |
99c513f6 | 108 | #define E_FLAG_RL78_DSP (1 << 1) /* Defined in the RL78 CPU Object file specification, but not explained. */ |
1740ba0c NC |
109 | #define E_FLAG_RL78_CPU_MASK 0x0c |
110 | #define E_FLAG_RL78_ANY_CPU 0x00 /* CPU not specified. Assume no CPU specific code usage. */ | |
111 | #define E_FLAG_RL78_G10 0x04 /* CPU is missing register banks 1-3, so uses different ABI. */ | |
112 | #define E_FLAG_RL78_G13 0x08 /* CPU uses a peripheral for multiply/divide. */ | |
113 | #define E_FLAG_RL78_G14 0x0c /* CPU has multiply/divide instructions. */ | |
99c513f6 DD |
114 | |
115 | /* These define the addend field of R_RL78_RH_RELAX relocations. */ | |
599b6fb8 | 116 | #define RL78_RELAXA_MASK 0x000000f0 /* Mask for relax types */ |
9cea966c DD |
117 | #define RL78_RELAXA_BRA 0x00000010 /* Any type of branch (must be decoded). */ |
118 | #define RL78_RELAXA_ADDR16 0x00000020 /* addr16->sfr/saddr opportunity */ | |
99c513f6 DD |
119 | #define RL78_RELAXA_RNUM 0x0000000f /* Number of associated relocations. */ |
120 | /* These mark the place where alignment is requested, and the place where the filler bytes end. */ | |
121 | #define RL78_RELAXA_ALIGN 0x10000000 /* Start alignment; the remaining bits are the alignment value. */ | |
122 | #define RL78_RELAXA_ELIGN 0x20000000 /* End alignment; the remaining bits are the alignment value. */ | |
123 | #define RL78_RELAXA_ANUM 0x00ffffff /* Alignment amount, in bytes (i.e. .balign). */ | |
124 | ||
125 | #endif /* _ELF_RL78_H */ |