1 /* RX ELF support for BFD.
2 Copyright (C) 2008-2016 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 3 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 Foundation,
18 Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
23 #include "elf/reloc-macros.h"
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-rx.c to see if any of the internal relocations need to
30 /* Preliminary relocations. */
31 START_RELOC_NUMBERS (elf_rx_reloc_type
)
33 RELOC_NUMBER (R_RX_NONE
, 0x00)
34 /* These are for data, and are bi-endian. */
35 RELOC_NUMBER (R_RX_DIR32
, 0x01) /* Was: R_RX_32. */
36 RELOC_NUMBER (R_RX_DIR24S
, 0x02) /* Was: R_RX_24. */
37 RELOC_NUMBER (R_RX_DIR16
, 0x03)
38 RELOC_NUMBER (R_RX_DIR16U
, 0x04) /* Was: R_RX_16_UNS. */
39 RELOC_NUMBER (R_RX_DIR16S
, 0x05) /* Was: R_RX_16. */
40 RELOC_NUMBER (R_RX_DIR8
, 0x06)
41 RELOC_NUMBER (R_RX_DIR8U
, 0x07) /* Was: R_RX_8_UNS. */
42 RELOC_NUMBER (R_RX_DIR8S
, 0x08) /* Was: R_RX_8. */
44 /* Signed pc-relative values. */
45 RELOC_NUMBER (R_RX_DIR24S_PCREL
, 0x09) /* Was: R_RX_24_PCREL. */
46 RELOC_NUMBER (R_RX_DIR16S_PCREL
, 0x0a) /* Was: R_RX_16_PCREL. */
47 RELOC_NUMBER (R_RX_DIR8S_PCREL
, 0x0b) /* Was: R_RX_8_PCREL. */
49 /* These are for fields in the instructions. */
50 RELOC_NUMBER (R_RX_DIR16UL
, 0x0c)
51 RELOC_NUMBER (R_RX_DIR16UW
, 0x0d)
52 RELOC_NUMBER (R_RX_DIR8UL
, 0x0e)
53 RELOC_NUMBER (R_RX_DIR8UW
, 0x0f)
54 RELOC_NUMBER (R_RX_DIR32_REV
, 0x10)
55 RELOC_NUMBER (R_RX_DIR16_REV
, 0x11)
56 RELOC_NUMBER (R_RX_DIR3U_PCREL
, 0x12)
58 /* These are extensions added by Red Hat. */
59 RELOC_NUMBER (R_RX_RH_3_PCREL
, 0x20) /* Like R_RX_DIR8S_PCREL but only 3-bits. */
60 RELOC_NUMBER (R_RX_RH_16_OP
, 0x21) /* Like R_RX_DIR16 but for opcodes - always big endian. */
61 RELOC_NUMBER (R_RX_RH_24_OP
, 0x22) /* Like R_RX_DIR24S but for opcodes - always big endian. */
62 RELOC_NUMBER (R_RX_RH_32_OP
, 0x23) /* Like R_RX_DIR32 but for opcodes - always big endian. */
63 RELOC_NUMBER (R_RX_RH_24_UNS
, 0x24) /* Like R_RX_DIR24S but for unsigned values. */
64 RELOC_NUMBER (R_RX_RH_8_NEG
, 0x25) /* Like R_RX_DIR8 but -x is stored. */
65 RELOC_NUMBER (R_RX_RH_16_NEG
, 0x26) /* Like R_RX_DIR16 but -x is stored. */
66 RELOC_NUMBER (R_RX_RH_24_NEG
, 0x27) /* Like R_RX_DIR24S but -x is stored. */
67 RELOC_NUMBER (R_RX_RH_32_NEG
, 0x28) /* Like R_RX_DIR32 but -x is stored. */
68 RELOC_NUMBER (R_RX_RH_DIFF
, 0x29) /* Subtract from a previous relocation. */
69 RELOC_NUMBER (R_RX_RH_GPRELB
, 0x2a) /* Byte value, relative to __gp. */
70 RELOC_NUMBER (R_RX_RH_GPRELW
, 0x2b) /* Word value, relative to __gp. */
71 RELOC_NUMBER (R_RX_RH_GPRELL
, 0x2c) /* Long value, relative to __gp. */
72 RELOC_NUMBER (R_RX_RH_RELAX
, 0x2d) /* Marks opcodes suitable for linker relaxation. */
74 /* These are for complex relocs. */
75 RELOC_NUMBER (R_RX_ABS32
, 0x41)
76 RELOC_NUMBER (R_RX_ABS24S
, 0x42)
77 RELOC_NUMBER (R_RX_ABS16
, 0x43)
78 RELOC_NUMBER (R_RX_ABS16U
, 0x44)
79 RELOC_NUMBER (R_RX_ABS16S
, 0x45)
80 RELOC_NUMBER (R_RX_ABS8
, 0x46)
81 RELOC_NUMBER (R_RX_ABS8U
, 0x47)
82 RELOC_NUMBER (R_RX_ABS8S
, 0x48)
83 RELOC_NUMBER (R_RX_ABS24S_PCREL
, 0x49)
84 RELOC_NUMBER (R_RX_ABS16S_PCREL
, 0x4a)
85 RELOC_NUMBER (R_RX_ABS8S_PCREL
, 0x4b)
86 RELOC_NUMBER (R_RX_ABS16UL
, 0x4c)
87 RELOC_NUMBER (R_RX_ABS16UW
, 0x4d)
88 RELOC_NUMBER (R_RX_ABS8UL
, 0x4e)
89 RELOC_NUMBER (R_RX_ABS8UW
, 0x4f)
90 RELOC_NUMBER (R_RX_ABS32_REV
, 0x50)
91 RELOC_NUMBER (R_RX_ABS16_REV
, 0x51)
93 RELOC_NUMBER (R_RX_SYM
, 0x80)
94 RELOC_NUMBER (R_RX_OPneg
, 0x81)
95 RELOC_NUMBER (R_RX_OPadd
, 0x82)
96 RELOC_NUMBER (R_RX_OPsub
, 0x83)
97 RELOC_NUMBER (R_RX_OPmul
, 0x84)
98 RELOC_NUMBER (R_RX_OPdiv
, 0x85)
99 RELOC_NUMBER (R_RX_OPshla
, 0x86)
100 RELOC_NUMBER (R_RX_OPshra
, 0x87)
101 RELOC_NUMBER (R_RX_OPsctsize
, 0x88)
102 RELOC_NUMBER (R_RX_OPscttop
, 0x8d)
103 RELOC_NUMBER (R_RX_OPand
, 0x90)
104 RELOC_NUMBER (R_RX_OPor
, 0x91)
105 RELOC_NUMBER (R_RX_OPxor
, 0x92)
106 RELOC_NUMBER (R_RX_OPnot
, 0x93)
107 RELOC_NUMBER (R_RX_OPmod
, 0x94)
108 RELOC_NUMBER (R_RX_OPromtop
, 0x95)
109 RELOC_NUMBER (R_RX_OPramtop
, 0x96)
111 END_RELOC_NUMBERS (R_RX_max
)
113 #define EF_RX_CPU_RX 0x00000079 /* FIXME: this collides with the E_FLAG_RX_... values below. */
114 #define EF_RX_CPU_MASK 0x0000007F /* specific cpu bits. */
115 #define EF_RX_ALL_FLAGS (EF_RX_CPU_MASK)
117 /* Values for the e_flags field in the ELF header. */
118 #define E_FLAG_RX_64BIT_DOUBLES (1 << 0)
119 #define E_FLAG_RX_DSP (1 << 1) /* Defined in the RX CPU Object file specification, but not explained. */
120 #define E_FLAG_RX_PID (1 << 2) /* Unofficial - DJ */
121 #define E_FLAG_RX_ABI (1 << 3) /* Binary passes stacked arguments using natural alignment. Unofficial - NC. */
122 #define E_FLAG_RX_SINSNS_SET (1 << 6) /* Set if bit-5 is significant. */
123 #define E_FLAG_RX_SINSNS_YES (1 << 7) /* Set if string instructions are used in the binary. */
124 #define E_FLAG_RX_SINSNS_NO 0 /* Bit-5 if this binary must not be linked with a string instruction using binary. */
125 #define E_FLAG_RX_SINSNS_MASK (3 << 6) /* Mask of bits used to determine string instruction use. */
126 #define E_FLAG_RX_V2 (1 << 8) /* RX v2 instructions */
128 /* These define the addend field of R_RX_RH_RELAX relocations. */
129 #define RX_RELAXA_IMM6 0x00000010 /* Imm8/16/24/32 at bit offset 6. */
130 #define RX_RELAXA_IMM12 0x00000020 /* Imm8/16/24/32 at bit offset 12. */
131 #define RX_RELAXA_DSP4 0x00000040 /* Dsp0/8/16 at bit offset 4. */
132 #define RX_RELAXA_DSP6 0x00000080 /* Dsp0/8/16 at bit offset 6. */
133 #define RX_RELAXA_DSP14 0x00000100 /* Dsp0/8/16 at bit offset 14. */
134 #define RX_RELAXA_BRA 0x00000200 /* Any type of branch (must be decoded). */
135 #define RX_RELAXA_RNUM 0x0000000f /* Number of associated relocations. */
136 /* These mark the place where alignment is requested, and the place where the filler bytes end. */
137 #define RX_RELAXA_ALIGN 0x10000000 /* Start alignment; the remaining bits are the alignment value. */
138 #define RX_RELAXA_ELIGN 0x20000000 /* End alignment; the remaining bits are the alignment value. */
139 #define RX_RELAXA_ANUM 0x00ffffff /* Alignment amount, in bytes (i.e. .balign). */
141 #endif /* _ELF_RX_H */
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