source: trunk/libs/newlib/src/include/elf/rx.h @ 612

Last change on this file since 612 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
File size: 6.9 KB
Line 
1/* RX ELF support for BFD.
2   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
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_RX_H
21#define _ELF_RX_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-rx.c to see if any of the internal relocations need to
28   be, er, relocated.  */
29
30/* Preliminary relocations.  */
31START_RELOC_NUMBERS (elf_rx_reloc_type)
32
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.  */
43
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.  */
48
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)
57
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.  */
73
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)
92
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)
110
111END_RELOC_NUMBERS (R_RX_max)
112
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)
116
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
123#define E_FLAG_RX_SINSNS_SET            (1 << 6) /* Set if bit-5 is significant.  */
124#define E_FLAG_RX_SINSNS_YES            (1 << 7) /* Set if string instructions are used in the binary.  */
125#define E_FLAG_RX_SINSNS_NO             0        /* Bit-5 if this binary must not be linked with a string instruction using binary.  */
126#define E_FLAG_RX_SINSNS_MASK           (3 << 6) /* Mask of bits used to determine string instruction use.  */
127
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).  */
140
141#endif /* _ELF_RX_H */
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