1 /* IA-64 ELF support for BFD.
2 Copyright 1998, 1999, 2000 Free Software Foundation, Inc.
3 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 /* Bits in the e_flags field of the Elf64_Ehdr: */
27 #define EF_IA_64_MASKOS 0x0000000f /* os-specific flags */
28 #define EF_IA_64_ARCH 0xff000000 /* arch. version mask */
30 /* ??? These four definitions are not part of the SVR4 ABI.
31 They were present in David's initial code drop, so it is probable
32 that they are used by HP/UX. */
33 #define EF_IA_64_TRAPNIL (1 << 0) /* trap NIL pointer dereferences */
34 #define EF_IA_64_EXT (1 << 2) /* program uses arch. extensions */
35 #define EF_IA_64_BE (1 << 3) /* PSR BE bit set (big-endian) */
36 #define EFA_IA_64_EAS2_3 0x23000000 /* ia64 EAS 2.3 */
38 #define EF_IA_64_ABI64 (1 << 4) /* 64-bit ABI */
40 #define EF_IA_64_REDUCEDFP (1 << 5) /* Only FP6-FP11 used. */
41 #define EF_IA_64_CONS_GP (1 << 6) /* gp as program wide constant. */
42 #define EF_IA_64_NOFUNCDESC_CONS_GP (1 << 7) /* And no function descriptors. */
44 #define EF_IA_64_ABSOLUTE (1 << 8) /* Load at absolute addresses. */
46 #define ELF_STRING_ia64_archext ".IA_64.archext"
47 #define ELF_STRING_ia64_pltoff ".IA_64.pltoff"
48 #define ELF_STRING_ia64_unwind ".IA_64.unwind"
49 #define ELF_STRING_ia64_unwind_info ".IA_64.unwind_info"
50 #define ELF_STRING_ia64_unwind_once ".gnu.linkonce.ia64unw."
51 #define ELF_STRING_ia64_unwind_info_once ".gnu.linkonce.ia64unwi."
53 /* Bits in the sh_flags field of Elf64_Shdr: */
55 #define SHF_IA_64_SHORT 0x10000000 /* section near gp */
56 #define SHF_IA_64_NORECOV 0x20000000 /* spec insns w/o recovery */
58 /* Possible values for sh_type in Elf64_Shdr: */
60 #define SHT_IA_64_EXT (SHT_LOPROC + 0) /* extension bits */
61 #define SHT_IA_64_UNWIND (SHT_LOPROC + 1) /* unwind bits */
63 /* Bits in the p_flags field of Elf64_Phdr: */
65 #define PF_IA_64_NORECOV 0x80000000
67 /* Possible values for p_type in Elf64_Phdr: */
69 #define PT_IA_64_ARCHEXT (PT_LOPROC + 0) /* arch extension bits */
70 #define PT_IA_64_UNWIND (PT_LOPROC + 1) /* ia64 unwind bits */
72 /* Possible values for d_tag in Elf64_Dyn: */
74 #define DT_IA_64_PLT_RESERVE (DT_LOPROC + 0)
76 /* ia64-specific relocation types: */
78 /* Relocs apply to specific instructions within a bundle. The least
79 significant 2 bits of the address indicate which instruction in the
80 bundle the reloc refers to (0=first slot, 1=second slow, 2=third
81 slot, 3=undefined) and the remaining bits give the address of the
82 bundle (16 byte aligned).
84 The top 5 bits of the reloc code specifies the expression type, the
85 low 3 bits the format of the data word being relocated. */
87 #include "elf/reloc-macros.h"
89 START_RELOC_NUMBERS (elf_ia64_reloc_type)
90 RELOC_NUMBER (R_IA64_NONE, 0x00) /* none */
92 RELOC_NUMBER (R_IA64_IMM14, 0x21) /* symbol + addend, add imm14 */
93 RELOC_NUMBER (R_IA64_IMM22, 0x22) /* symbol + addend, add imm22 */
94 RELOC_NUMBER (R_IA64_IMM64, 0x23) /* symbol + addend, mov imm64 */
95 RELOC_NUMBER (R_IA64_DIR32MSB, 0x24) /* symbol + addend, data4 MSB */
96 RELOC_NUMBER (R_IA64_DIR32LSB, 0x25) /* symbol + addend, data4 LSB */
97 RELOC_NUMBER (R_IA64_DIR64MSB, 0x26) /* symbol + addend, data8 MSB */
98 RELOC_NUMBER (R_IA64_DIR64LSB, 0x27) /* symbol + addend, data8 LSB */
100 RELOC_NUMBER (R_IA64_GPREL22, 0x2a) /* @gprel(sym+add), add imm22 */
101 RELOC_NUMBER (R_IA64_GPREL64I, 0x2b) /* @gprel(sym+add), mov imm64 */
102 RELOC_NUMBER (R_IA64_GPREL32MSB, 0x2c) /* @gprel(sym+add), data4 MSB */
103 RELOC_NUMBER (R_IA64_GPREL32LSB, 0x2d) /* @gprel(sym+add), data4 LSB */
104 RELOC_NUMBER (R_IA64_GPREL64MSB, 0x2e) /* @gprel(sym+add), data8 MSB */
105 RELOC_NUMBER (R_IA64_GPREL64LSB, 0x2f) /* @gprel(sym+add), data8 LSB */
107 RELOC_NUMBER (R_IA64_LTOFF22, 0x32) /* @ltoff(sym+add), add imm22 */
108 RELOC_NUMBER (R_IA64_LTOFF64I, 0x33) /* @ltoff(sym+add), mov imm64 */
110 RELOC_NUMBER (R_IA64_PLTOFF22, 0x3a) /* @pltoff(sym+add), add imm22 */
111 RELOC_NUMBER (R_IA64_PLTOFF64I, 0x3b) /* @pltoff(sym+add), mov imm64 */
112 RELOC_NUMBER (R_IA64_PLTOFF64MSB, 0x3e) /* @pltoff(sym+add), data8 MSB */
113 RELOC_NUMBER (R_IA64_PLTOFF64LSB, 0x3f) /* @pltoff(sym+add), data8 LSB */
115 RELOC_NUMBER (R_IA64_FPTR64I, 0x43) /* @fptr(sym+add), mov imm64 */
116 RELOC_NUMBER (R_IA64_FPTR32MSB, 0x44) /* @fptr(sym+add), data4 MSB */
117 RELOC_NUMBER (R_IA64_FPTR32LSB, 0x45) /* @fptr(sym+add), data4 LSB */
118 RELOC_NUMBER (R_IA64_FPTR64MSB, 0x46) /* @fptr(sym+add), data8 MSB */
119 RELOC_NUMBER (R_IA64_FPTR64LSB, 0x47) /* @fptr(sym+add), data8 LSB */
121 RELOC_NUMBER (R_IA64_PCREL60B, 0x48) /* @pcrel(sym+add), brl */
122 RELOC_NUMBER (R_IA64_PCREL21B, 0x49) /* @pcrel(sym+add), ptb, call */
123 RELOC_NUMBER (R_IA64_PCREL21M, 0x4a) /* @pcrel(sym+add), chk.s */
124 RELOC_NUMBER (R_IA64_PCREL21F, 0x4b) /* @pcrel(sym+add), fchkf */
125 RELOC_NUMBER (R_IA64_PCREL32MSB, 0x4c) /* @pcrel(sym+add), data4 MSB */
126 RELOC_NUMBER (R_IA64_PCREL32LSB, 0x4d) /* @pcrel(sym+add), data4 LSB */
127 RELOC_NUMBER (R_IA64_PCREL64MSB, 0x4e) /* @pcrel(sym+add), data8 MSB */
128 RELOC_NUMBER (R_IA64_PCREL64LSB, 0x4f) /* @pcrel(sym+add), data8 LSB */
130 RELOC_NUMBER (R_IA64_LTOFF_FPTR22, 0x52) /* @ltoff(@fptr(s+a)), imm22 */
131 RELOC_NUMBER (R_IA64_LTOFF_FPTR64I, 0x53) /* @ltoff(@fptr(s+a)), imm64 */
132 RELOC_NUMBER (R_IA64_LTOFF_FPTR32MSB, 0x54) /* @ltoff(@fptr(s+a)), 4 MSB */
133 RELOC_NUMBER (R_IA64_LTOFF_FPTR32LSB, 0x55) /* @ltoff(@fptr(s+a)), 4 LSB */
134 RELOC_NUMBER (R_IA64_LTOFF_FPTR64MSB, 0x56) /* @ltoff(@fptr(s+a)), 8 MSB */
135 RELOC_NUMBER (R_IA64_LTOFF_FPTR64LSB, 0x57) /* @ltoff(@fptr(s+a)), 8 LSB */
137 RELOC_NUMBER (R_IA64_SEGREL32MSB, 0x5c) /* @segrel(sym+add), data4 MSB */
138 RELOC_NUMBER (R_IA64_SEGREL32LSB, 0x5d) /* @segrel(sym+add), data4 LSB */
139 RELOC_NUMBER (R_IA64_SEGREL64MSB, 0x5e) /* @segrel(sym+add), data8 MSB */
140 RELOC_NUMBER (R_IA64_SEGREL64LSB, 0x5f) /* @segrel(sym+add), data8 LSB */
142 RELOC_NUMBER (R_IA64_SECREL32MSB, 0x64) /* @secrel(sym+add), data4 MSB */
143 RELOC_NUMBER (R_IA64_SECREL32LSB, 0x65) /* @secrel(sym+add), data4 LSB */
144 RELOC_NUMBER (R_IA64_SECREL64MSB, 0x66) /* @secrel(sym+add), data8 MSB */
145 RELOC_NUMBER (R_IA64_SECREL64LSB, 0x67) /* @secrel(sym+add), data8 LSB */
147 RELOC_NUMBER (R_IA64_REL32MSB, 0x6c) /* data 4 + REL */
148 RELOC_NUMBER (R_IA64_REL32LSB, 0x6d) /* data 4 + REL */
149 RELOC_NUMBER (R_IA64_REL64MSB, 0x6e) /* data 8 + REL */
150 RELOC_NUMBER (R_IA64_REL64LSB, 0x6f) /* data 8 + REL */
152 RELOC_NUMBER (R_IA64_LTV32MSB, 0x74) /* symbol + addend, data4 MSB */
153 RELOC_NUMBER (R_IA64_LTV32LSB, 0x75) /* symbol + addend, data4 LSB */
154 RELOC_NUMBER (R_IA64_LTV64MSB, 0x76) /* symbol + addend, data8 MSB */
155 RELOC_NUMBER (R_IA64_LTV64LSB, 0x77) /* symbol + addend, data8 LSB */
157 RELOC_NUMBER (R_IA64_PCREL21BI, 0x79) /* @pcrel(sym+add), ptb, call */
158 RELOC_NUMBER (R_IA64_PCREL22, 0x7a) /* @pcrel(sym+add), imm22 */
159 RELOC_NUMBER (R_IA64_PCREL64I, 0x7b) /* @pcrel(sym+add), imm64 */
161 RELOC_NUMBER (R_IA64_IPLTMSB, 0x80) /* dynamic reloc, imported PLT, MSB */
162 RELOC_NUMBER (R_IA64_IPLTLSB, 0x81) /* dynamic reloc, imported PLT, LSB */
163 RELOC_NUMBER (R_IA64_COPY, 0x84) /* dynamic reloc, data copy */
164 RELOC_NUMBER (R_IA64_LTOFF22X, 0x86) /* LTOFF22, relaxable. */
165 RELOC_NUMBER (R_IA64_LDXMOV, 0x87) /* Use of LTOFF22X. */
167 RELOC_NUMBER (R_IA64_TPREL14, 0x91) /* @tprel(sym+add), add imm14 */
168 RELOC_NUMBER (R_IA64_TPREL22, 0x92) /* @tprel(sym+add), add imm22 */
169 RELOC_NUMBER (R_IA64_TPREL64I, 0x93) /* @tprel(sym+add), add imm64 */
170 RELOC_NUMBER (R_IA64_TPREL64MSB, 0x96) /* @tprel(sym+add), data8 MSB */
171 RELOC_NUMBER (R_IA64_TPREL64LSB, 0x97) /* @tprel(sym+add), data8 LSB */
173 RELOC_NUMBER (R_IA64_LTOFF_TP22, 0x9a) /* @ltoff(@tprel(s+a)), add imm22 */
175 RELOC_NUMBER (R_IA64_DTPMOD64MSB, 0xa6) /* @dtpmod(sym+add), data8 MSB */
176 RELOC_NUMBER (R_IA64_DTPMOD64LSB, 0xa7) /* @dtpmod(sym+add), data8 LSB */
177 RELOC_NUMBER (R_IA64_LTOFF_DTPMOD22, 0xaa) /* @ltoff(@dtpmod(s+a)), imm22 */
179 RELOC_NUMBER (R_IA64_DTPREL14, 0xb1) /* @dtprel(sym+add), imm14 */
180 RELOC_NUMBER (R_IA64_DTPREL22, 0xb2) /* @dtprel(sym+add), imm22 */
181 RELOC_NUMBER (R_IA64_DTPREL64I, 0xb3) /* @dtprel(sym+add), imm64 */
182 RELOC_NUMBER (R_IA64_DTPREL32MSB, 0xb4) /* @dtprel(sym+add), data4 MSB */
183 RELOC_NUMBER (R_IA64_DTPREL32LSB, 0xb5) /* @dtprel(sym+add), data4 LSB */
184 RELOC_NUMBER (R_IA64_DTPREL64MSB, 0xb6) /* @dtprel(sym+add), data8 MSB */
185 RELOC_NUMBER (R_IA64_DTPREL64LSB, 0xb7) /* @dtprel(sym+add), data8 LSB */
187 RELOC_NUMBER (R_IA64_LTOFF_DTPREL22, 0xba) /* @ltoff(@dtprel(s+a)), imm22 */
189 FAKE_RELOC (R_IA64_MAX_RELOC_CODE, 0xba)
190 END_RELOC_NUMBERS (R_IA64_max)
192 #endif /* _ELF_IA64_H */