1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_SPARC64_ELF_H
3 #define __ASM_SPARC64_ELF_H
4
5 /*
6 * ELF register definitions..
7 */
8
9 #include <asm/ptrace.h>
10 #include <asm/processor.h>
11 #include <asm/spitfire.h>
12 #include <asm/adi.h>
13
14 /*
15 * Sparc section types
16 */
17 #define STT_REGISTER 13
18
19 /*
20 * Sparc ELF relocation types
21 */
22 #define R_SPARC_NONE 0
23 #define R_SPARC_8 1
24 #define R_SPARC_16 2
25 #define R_SPARC_32 3
26 #define R_SPARC_DISP8 4
27 #define R_SPARC_DISP16 5
28 #define R_SPARC_DISP32 6
29 #define R_SPARC_WDISP30 7
30 #define R_SPARC_WDISP22 8
31 #define R_SPARC_HI22 9
32 #define R_SPARC_22 10
33 #define R_SPARC_13 11
34 #define R_SPARC_LO10 12
35 #define R_SPARC_GOT10 13
36 #define R_SPARC_GOT13 14
37 #define R_SPARC_GOT22 15
38 #define R_SPARC_PC10 16
39 #define R_SPARC_PC22 17
40 #define R_SPARC_WPLT30 18
41 #define R_SPARC_COPY 19
42 #define R_SPARC_GLOB_DAT 20
43 #define R_SPARC_JMP_SLOT 21
44 #define R_SPARC_RELATIVE 22
45 #define R_SPARC_UA32 23
46 #define R_SPARC_PLT32 24
47 #define R_SPARC_HIPLT22 25
48 #define R_SPARC_LOPLT10 26
49 #define R_SPARC_PCPLT32 27
50 #define R_SPARC_PCPLT22 28
51 #define R_SPARC_PCPLT10 29
52 #define R_SPARC_10 30
53 #define R_SPARC_11 31
54 #define R_SPARC_64 32
55 #define R_SPARC_OLO10 33
56 #define R_SPARC_WDISP16 40
57 #define R_SPARC_WDISP19 41
58 #define R_SPARC_7 43
59 #define R_SPARC_5 44
60 #define R_SPARC_6 45
61
62 /* Bits present in AT_HWCAP, primarily for Sparc32. */
63 #define HWCAP_SPARC_FLUSH 0x00000001
64 #define HWCAP_SPARC_STBAR 0x00000002
65 #define HWCAP_SPARC_SWAP 0x00000004
66 #define HWCAP_SPARC_MULDIV 0x00000008
67 #define HWCAP_SPARC_V9 0x00000010
68 #define HWCAP_SPARC_ULTRA3 0x00000020
69 #define HWCAP_SPARC_BLKINIT 0x00000040
70 #define HWCAP_SPARC_N2 0x00000080
71
72 /* Solaris compatible AT_HWCAP bits. */
73 #define AV_SPARC_MUL32 0x00000100 /* 32x32 multiply is efficient */
74 #define AV_SPARC_DIV32 0x00000200 /* 32x32 divide is efficient */
75 #define AV_SPARC_FSMULD 0x00000400 /* 'fsmuld' is efficient */
76 #define AV_SPARC_V8PLUS 0x00000800 /* v9 insn available to 32bit */
77 #define AV_SPARC_POPC 0x00001000 /* 'popc' is efficient */
78 #define AV_SPARC_VIS 0x00002000 /* VIS insns available */
79 #define AV_SPARC_VIS2 0x00004000 /* VIS2 insns available */
80 #define AV_SPARC_ASI_BLK_INIT 0x00008000 /* block init ASIs available */
81 #define AV_SPARC_FMAF 0x00010000 /* fused multiply-add */
82 #define AV_SPARC_VIS3 0x00020000 /* VIS3 insns available */
83 #define AV_SPARC_HPC 0x00040000 /* HPC insns available */
84 #define AV_SPARC_RANDOM 0x00080000 /* 'random' insn available */
85 #define AV_SPARC_TRANS 0x00100000 /* transaction insns available */
86 #define AV_SPARC_FJFMAU 0x00200000 /* unfused multiply-add */
87 #define AV_SPARC_IMA 0x00400000 /* integer multiply-add */
88 #define AV_SPARC_ASI_CACHE_SPARING \
89 0x00800000 /* cache sparing ASIs available */
90 #define AV_SPARC_PAUSE 0x01000000 /* PAUSE available */
91 #define AV_SPARC_CBCOND 0x02000000 /* CBCOND insns available */
92
93 /* Solaris decided to enumerate every single crypto instruction type
94 * in the AT_HWCAP bits. This is wasteful, since if crypto is present,
95 * you still need to look in the CFR register to see if the opcode is
96 * really available. So we simply advertise only "crypto" support.
97 */
98 #define HWCAP_SPARC_CRYPTO 0x04000000 /* CRYPTO insns available */
99 #define HWCAP_SPARC_ADI 0x08000000 /* ADI available */
100
101 #define CORE_DUMP_USE_REGSET
102
103 /*
104 * These are used to set parameters in the core dumps.
105 */
106 #define ELF_ARCH EM_SPARCV9
107 #define ELF_CLASS ELFCLASS64
108 #define ELF_DATA ELFDATA2MSB
109
110 /* Format of 64-bit elf_gregset_t is:
111 * G0 --> G7
112 * O0 --> O7
113 * L0 --> L7
114 * I0 --> I7
115 * TSTATE
116 * TPC
117 * TNPC
118 * Y
119 */
120 typedef unsigned long elf_greg_t;
121 #define ELF_NGREG 36
122 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
123
124 typedef struct {
125 unsigned long pr_regs[32];
126 unsigned long pr_fsr;
127 unsigned long pr_gsr;
128 unsigned long pr_fprs;
129 } elf_fpregset_t;
130
131 /* Format of 32-bit elf_gregset_t is:
132 * G0 --> G7
133 * O0 --> O7
134 * L0 --> L7
135 * I0 --> I7
136 * PSR, PC, nPC, Y, WIM, TBR
137 */
138 typedef unsigned int compat_elf_greg_t;
139 #define COMPAT_ELF_NGREG 38
140 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
141
142 typedef struct {
143 union {
144 unsigned int pr_regs[32];
145 unsigned long pr_dregs[16];
146 } pr_fr;
147 unsigned int __unused;
148 unsigned int pr_fsr;
149 unsigned char pr_qcnt;
150 unsigned char pr_q_entrysize;
151 unsigned char pr_en;
152 unsigned int pr_q[64];
153 } compat_elf_fpregset_t;
154
155 /* UltraSparc extensions. Still unused, but will be eventually. */
156 typedef struct {
157 unsigned int pr_type;
158 unsigned int pr_align;
159 union {
160 struct {
161 union {
162 unsigned int pr_regs[32];
163 unsigned long pr_dregs[16];
164 long double pr_qregs[8];
165 } pr_xfr;
166 } pr_v8p;
167 unsigned int pr_xfsr;
168 unsigned int pr_fprs;
169 unsigned int pr_xg[8];
170 unsigned int pr_xo[8];
171 unsigned long pr_tstate;
172 unsigned int pr_filler[8];
173 } pr_un;
174 } elf_xregset_t;
175
176 /*
177 * This is used to ensure we don't load something for the wrong architecture.
178 */
179 #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)
180 #define compat_elf_check_arch(x) ((x)->e_machine == EM_SPARC || \
181 (x)->e_machine == EM_SPARC32PLUS)
182 #define compat_start_thread start_thread32
183
184 #define ELF_EXEC_PAGESIZE PAGE_SIZE
185
186 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical
187 use of this is to invoke "./ld.so someprog" to test out a new version of
188 the loader. We need to make sure that it is out of the way of the program
189 that it will "exec", and that there is sufficient room for the brk. */
190
191 #define ELF_ET_DYN_BASE 0x0000010000000000UL
192 #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
193
194 extern unsigned long sparc64_elf_hwcap;
195 #define ELF_HWCAP sparc64_elf_hwcap
196
197 /* This yields a string that ld.so will use to load implementation
198 specific libraries for optimization. This is more specific in
199 intent than poking at uname or /proc/cpuinfo. */
200
201 #define ELF_PLATFORM (NULL)
202
203 #define SET_PERSONALITY(ex) \
204 do { if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
205 set_thread_flag(TIF_32BIT); \
206 else \
207 clear_thread_flag(TIF_32BIT); \
208 /* flush_thread will update pgd cache */ \
209 if (personality(current->personality) != PER_LINUX32) \
210 set_personality(PER_LINUX | \
211 (current->personality & (~PER_MASK))); \
212 } while (0)
213
214 extern unsigned int vdso_enabled;
215
216 #define ARCH_DLINFO \
217 do { \
218 extern struct adi_config adi_state; \
219 if (vdso_enabled) \
220 NEW_AUX_ENT(AT_SYSINFO_EHDR, \
221 (unsigned long)current->mm->context.vdso); \
222 NEW_AUX_ENT(AT_ADI_BLKSZ, adi_state.caps.blksz); \
223 NEW_AUX_ENT(AT_ADI_NBITS, adi_state.caps.nbits); \
224 NEW_AUX_ENT(AT_ADI_UEONADI, adi_state.caps.ue_on_adi); \
225 } while (0)
226
227 struct linux_binprm;
228
229 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
230 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
231 int uses_interp);
232 #endif /* !(__ASM_SPARC64_ELF_H) */
233
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