source: trunk/libs/newlib/src/include/elf/cris.h @ 581

Last change on this file since 581 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 7.9 KB
Line 
1/* CRIS ELF support for BFD.
2   Copyright 2000, 2001, 2004, 2010  Free Software Foundation, Inc.
3   Contributed by Axis Communications AB, Lund, Sweden.
4   Written by Hans-Peter Nilsson.
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 3 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 Foundation,
20   Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
21
22#ifndef _ELF_CRIS_H
23#define _ELF_CRIS_H
24
25#include "elf/reloc-macros.h"
26
27/* Relocations.  */
28START_RELOC_NUMBERS (elf_cris_reloc_type)
29  RELOC_NUMBER (R_CRIS_NONE,            0)
30  RELOC_NUMBER (R_CRIS_8,               1)
31  RELOC_NUMBER (R_CRIS_16,              2)
32  RELOC_NUMBER (R_CRIS_32,              3)
33
34  /* The "PC" position is the location right after the relocation.  */
35  RELOC_NUMBER (R_CRIS_8_PCREL,         4)
36  RELOC_NUMBER (R_CRIS_16_PCREL,        5)
37  RELOC_NUMBER (R_CRIS_32_PCREL,        6)
38
39  RELOC_NUMBER (R_CRIS_GNU_VTINHERIT,   7)
40  RELOC_NUMBER (R_CRIS_GNU_VTENTRY,     8)
41
42  /* Copy contents at dynlinking.  Generated by the linker.
43     The BFD equivalent is BFD_RELOC_CRIS_COPY.  */
44  RELOC_NUMBER (R_CRIS_COPY, 9)
45
46  /* Create GOT entry.  Generated by the linker.
47     The BFD equivalent is BFD_RELOC_CRIS_GLOB_DAT.  */
48  RELOC_NUMBER (R_CRIS_GLOB_DAT, 10)
49
50  /* Create PLT entry.  Generated by the linker.
51     The BFD equivalent is BFD_RELOC_CRIS_JUMP_SLOT.  */
52  RELOC_NUMBER (R_CRIS_JUMP_SLOT, 11)
53
54  /* Adjust by program base.  Generated by the linker.
55     The BFD equivalent is BFD_RELOC_CRIS_RELATIVE.  */
56  RELOC_NUMBER (R_CRIS_RELATIVE, 12)
57
58  /* A 16-bit offset to entry in GOT and request to create GOT entry for
59     that symbol.
60     The BFD equivalent is BFD_RELOC_CRIS_16_GOT.  */
61  RELOC_NUMBER (R_CRIS_16_GOT, 13)
62
63  /* A 32-bit offset to entry in GOT and request to create GOT entry for
64     that symbol.
65     The BFD equivalent is BFD_RELOC_CRIS_32_GOT.  */
66  RELOC_NUMBER (R_CRIS_32_GOT, 14)
67
68  /* A 16-bit offset to entry in PLT part of GOT and request to create PLT
69     entry for that symbol.
70     The BFD equivalent is BFD_RELOC_CRIS_16_GOTPLT.  */
71  RELOC_NUMBER (R_CRIS_16_GOTPLT, 15)
72
73  /* A 32-bit offset to entry in PLT part of GOT and request to create PLT
74     entry for that symbol.
75     The BFD equivalent is BFD_RELOC_CRIS_32_GOTPLT.  */
76  RELOC_NUMBER (R_CRIS_32_GOTPLT, 16)
77
78  /* A 32-bit offset from GOT to (local) symbol: no GOT entry should be
79     necessary.
80     The BFD equivalent is BFD_RELOC_CRIS_32_GOTREL.  */
81  RELOC_NUMBER (R_CRIS_32_GOTREL, 17)
82
83  /* A 32-bit offset from GOT to entry for this symbol in PLT and request
84     to create PLT entry for symbol.
85     The BFD equivalent is BFD_RELOC_CRIS_32_GOTREL.  */
86  RELOC_NUMBER (R_CRIS_32_PLT_GOTREL, 18)
87
88  /* A 32-bit offset from location after this relocation (addend specifies
89     offset) to entry for this symbol in PLT and request to create PLT
90     entry for symbol.
91     The BFD equivalent is BFD_RELOC_CRIS_32_PLT_PCREL.  */
92  RELOC_NUMBER (R_CRIS_32_PLT_PCREL, 19)
93
94  /* An assembler-generated-only relocation, instructing the linker to
95     reserve two GOT slots, carrying the R_CRIS_DTP relocation for the
96     symbol (pointing to the first slot, the relocation fills in
97     both).  The value is a 32-bit-value, relative to the start of the
98     GOT.  Assembly syntax: "sym:GDGOTREL".  */
99  RELOC_NUMBER (R_CRIS_32_GOT_GD, 20)
100
101  /* Similar to R_CRIS_32_GOT_GD, but the value is a 16-bit unsigned
102     number, limiting access to 65536/4 global symbols per module (or
103     65536/8 thread variables; loosely speaking G*4+T*8 < 65536, where
104     T is the number of thread variables and G is the number of other
105     external global variables and functions).  Assembly syntax:
106     "sym:GDGOTREL16".  */
107  RELOC_NUMBER (R_CRIS_16_GOT_GD, 21)
108
109  /* Similar to R_CRIS_32_GOT_GD, but the value is the absolute
110     address of the GOT entry.  Disallowed in DSOs created with
111     -shared.  Assembly syntax: "sym:GD".  */
112  RELOC_NUMBER (R_CRIS_32_GD, 22)
113
114  /* A linker-generated-only relocation, instructing the dynamic
115     linker to fill in the module ID and module-relative-TLS-block
116     offset of the symbol in question, used for GOT entries.  Note
117     that this relocation instructs to fill in two 32-bit values.  */
118  RELOC_NUMBER (R_CRIS_DTP, 23)
119
120  /* An assembler-generated-only relocation, instructing the linker to
121     reserve the first two GOT slots, and attach the R_CRIS_DTPMOD
122     relocation(*) for the module to the first slot, the second
123     containing zero.  The value is 32 bits, the offset from the start
124     of the TLS block of the module to the thread-local symbol
125     mentioned in the relocation.  This relocation must only be applied
126     to module-local symbols.  Assembly syntax: "expr:DTPREL".  */
127  RELOC_NUMBER (R_CRIS_32_DTPREL, 24)
128
129  /* Similar to R_CRIS_32_DTPREL, but the value is a 16-bit signed
130     number, limiting the size of thread-variables of the DSO to 32768
131     bytes.  (Note: matches both model 1 and 2 and allows use of addo.w
132     as the instruction where this relocation is used.)  Assembly
133     syntax: "expr:DTPREL16".  */
134  RELOC_NUMBER (R_CRIS_16_DTPREL, 25)
135
136  /* An assembler-generated-only relocation, instructing the linker to
137     reserve a GOT slot and attach the R_CRIS_32_TPREL relocation for
138     the symbol in question.  The value is 32 bits, which is the
139     GOT-relative offset of the slot.  Assembly syntax:
140     "sym:TPOFFGOT".  */
141  RELOC_NUMBER (R_CRIS_32_GOT_TPREL, 26)
142
143  /* Similar to R_CRIS_32_TPREL, but the value is a 16-bit positive
144     number, limiting the number of thread- and global variables of
145     the DSO to 32768/4.  Assembly syntax: "sym:TPOFFGOT16".  */
146  RELOC_NUMBER (R_CRIS_16_GOT_TPREL, 27)
147
148  /* An assembler- and linker-generated relocation, instructing to
149     resolve the symbol in question yielding the TLS offset of the
150     thread variable, relative to the global TLS block.  Not allowed
151     as input when generating a DSO.  Assembly syntax:
152     "expr:TPOFF".  */
153  RELOC_NUMBER (R_CRIS_32_TPREL, 28)
154
155  /* Similar to R_CRIS_32_TPREL, but only applicable to executables
156     compiled with -msmall-tls. Not allowed in a DSO. The value is a
157     16-bit signed number, limiting the size of thread-variables of
158     the executable to 32768 bytes. (Note: being signed makes it match
159     both model 1 and 2 and allows use of addo.w as the instruction
160     where this relocation is applied.)  Assembly syntax:
161     "expr:TPOFF16".  */
162  RELOC_NUMBER (R_CRIS_16_TPREL, 29)
163
164  /* A linker-generated-only relocation, instructing the dynamic
165     linker to fill in the current module ID, used for GOT entries
166     (usually the fourth one).  */
167  RELOC_NUMBER (R_CRIS_DTPMOD, 30)
168
169  /* Similar to R_CRIS_32_GOT_TPREL, but the value is the absolute
170     address of the GOT entry.  Disallowed in DSOs created with
171     -shared.  Assembly syntax: "sym:IE".  */
172  RELOC_NUMBER (R_CRIS_32_IE, 31)
173
174  /* No other relocs must be visible outside the assembler.  */
175
176END_RELOC_NUMBERS (R_CRIS_max)
177
178/* User symbols in this file have a leading underscore.  */
179#define EF_CRIS_UNDERSCORE              0x00000001
180
181/* This is a mask for different incompatible machine variants.  */
182#define EF_CRIS_VARIANT_MASK            0x0000000e
183
184/* Variant 0; may contain v0..10 object.  */
185#define EF_CRIS_VARIANT_ANY_V0_V10      0x00000000
186
187/* Variant 1; contains v32 object.  */
188#define EF_CRIS_VARIANT_V32             0x00000002
189
190/* Variant 2; contains object compatible with v32 and v10.  */
191#define EF_CRIS_VARIANT_COMMON_V10_V32  0x00000004
192
193#endif /* _ELF_CRIS_H */
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