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1 | #ifndef __ASM_SPARC64_ELF_H |
2 | #define __ASM_SPARC64_ELF_H | |
3 | ||
4 | /* | |
5 | * ELF register definitions.. | |
6 | */ | |
7 | ||
8 | #include <asm/ptrace.h> | |
9 | #include <asm/processor.h> | |
10 | #include <asm/uaccess.h> | |
11 | #include <asm/spitfire.h> | |
12 | ||
13 | /* | |
14 | * Sparc section types | |
15 | */ | |
16 | #define STT_REGISTER 13 | |
17 | ||
18 | /* | |
19 | * Sparc ELF relocation types | |
20 | */ | |
21 | #define R_SPARC_NONE 0 | |
22 | #define R_SPARC_8 1 | |
23 | #define R_SPARC_16 2 | |
24 | #define R_SPARC_32 3 | |
25 | #define R_SPARC_DISP8 4 | |
26 | #define R_SPARC_DISP16 5 | |
27 | #define R_SPARC_DISP32 6 | |
28 | #define R_SPARC_WDISP30 7 | |
29 | #define R_SPARC_WDISP22 8 | |
30 | #define R_SPARC_HI22 9 | |
31 | #define R_SPARC_22 10 | |
32 | #define R_SPARC_13 11 | |
33 | #define R_SPARC_LO10 12 | |
34 | #define R_SPARC_GOT10 13 | |
35 | #define R_SPARC_GOT13 14 | |
36 | #define R_SPARC_GOT22 15 | |
37 | #define R_SPARC_PC10 16 | |
38 | #define R_SPARC_PC22 17 | |
39 | #define R_SPARC_WPLT30 18 | |
40 | #define R_SPARC_COPY 19 | |
41 | #define R_SPARC_GLOB_DAT 20 | |
42 | #define R_SPARC_JMP_SLOT 21 | |
43 | #define R_SPARC_RELATIVE 22 | |
44 | #define R_SPARC_UA32 23 | |
45 | #define R_SPARC_PLT32 24 | |
46 | #define R_SPARC_HIPLT22 25 | |
47 | #define R_SPARC_LOPLT10 26 | |
48 | #define R_SPARC_PCPLT32 27 | |
49 | #define R_SPARC_PCPLT22 28 | |
50 | #define R_SPARC_PCPLT10 29 | |
51 | #define R_SPARC_10 30 | |
52 | #define R_SPARC_11 31 | |
53 | #define R_SPARC_64 32 | |
54 | #define R_SPARC_OLO10 33 | |
55 | #define R_SPARC_WDISP16 40 | |
56 | #define R_SPARC_WDISP19 41 | |
57 | #define R_SPARC_7 43 | |
58 | #define R_SPARC_5 44 | |
59 | #define R_SPARC_6 45 | |
60 | ||
61 | /* Bits present in AT_HWCAP, primarily for Sparc32. */ | |
62 | ||
63 | #define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */ | |
64 | #define HWCAP_SPARC_STBAR 2 | |
65 | #define HWCAP_SPARC_SWAP 4 | |
66 | #define HWCAP_SPARC_MULDIV 8 | |
67 | #define HWCAP_SPARC_V9 16 | |
68 | #define HWCAP_SPARC_ULTRA3 32 | |
69 | #define HWCAP_SPARC_BLKINIT 64 | |
70 | #define HWCAP_SPARC_N2 128 | |
71 | ||
72 | #define CORE_DUMP_USE_REGSET | |
73 | ||
74 | /* | |
75 | * These are used to set parameters in the core dumps. | |
76 | */ | |
77 | #define ELF_ARCH EM_SPARCV9 | |
78 | #define ELF_CLASS ELFCLASS64 | |
79 | #define ELF_DATA ELFDATA2MSB | |
80 | ||
81 | /* Format of 64-bit elf_gregset_t is: | |
82 | * G0 --> G7 | |
83 | * O0 --> O7 | |
84 | * L0 --> L7 | |
85 | * I0 --> I7 | |
86 | * TSTATE | |
87 | * TPC | |
88 | * TNPC | |
89 | * Y | |
90 | */ | |
91 | typedef unsigned long elf_greg_t; | |
92 | #define ELF_NGREG 36 | |
93 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | |
94 | ||
95 | typedef struct { | |
96 | unsigned long pr_regs[32]; | |
97 | unsigned long pr_fsr; | |
98 | unsigned long pr_gsr; | |
99 | unsigned long pr_fprs; | |
100 | } elf_fpregset_t; | |
101 | ||
102 | /* Format of 32-bit elf_gregset_t is: | |
103 | * G0 --> G7 | |
104 | * O0 --> O7 | |
105 | * L0 --> L7 | |
106 | * I0 --> I7 | |
107 | * PSR, PC, nPC, Y, WIM, TBR | |
108 | */ | |
109 | typedef unsigned int compat_elf_greg_t; | |
110 | #define COMPAT_ELF_NGREG 38 | |
111 | typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG]; | |
112 | ||
113 | typedef struct { | |
114 | union { | |
115 | unsigned int pr_regs[32]; | |
116 | unsigned long pr_dregs[16]; | |
117 | } pr_fr; | |
118 | unsigned int __unused; | |
119 | unsigned int pr_fsr; | |
120 | unsigned char pr_qcnt; | |
121 | unsigned char pr_q_entrysize; | |
122 | unsigned char pr_en; | |
123 | unsigned int pr_q[64]; | |
124 | } compat_elf_fpregset_t; | |
125 | ||
126 | /* UltraSparc extensions. Still unused, but will be eventually. */ | |
127 | typedef struct { | |
128 | unsigned int pr_type; | |
129 | unsigned int pr_align; | |
130 | union { | |
131 | struct { | |
132 | union { | |
133 | unsigned int pr_regs[32]; | |
134 | unsigned long pr_dregs[16]; | |
135 | long double pr_qregs[8]; | |
136 | } pr_xfr; | |
137 | } pr_v8p; | |
138 | unsigned int pr_xfsr; | |
139 | unsigned int pr_fprs; | |
140 | unsigned int pr_xg[8]; | |
141 | unsigned int pr_xo[8]; | |
142 | unsigned long pr_tstate; | |
143 | unsigned int pr_filler[8]; | |
144 | } pr_un; | |
145 | } elf_xregset_t; | |
146 | ||
147 | /* | |
148 | * This is used to ensure we don't load something for the wrong architecture. | |
149 | */ | |
150 | #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) | |
151 | #define compat_elf_check_arch(x) ((x)->e_machine == EM_SPARC || \ | |
152 | (x)->e_machine == EM_SPARC32PLUS) | |
153 | #define compat_start_thread start_thread32 | |
154 | ||
155 | #define USE_ELF_CORE_DUMP | |
156 | #define ELF_EXEC_PAGESIZE PAGE_SIZE | |
157 | ||
158 | /* This is the location that an ET_DYN program is loaded if exec'ed. Typical | |
159 | use of this is to invoke "./ld.so someprog" to test out a new version of | |
160 | the loader. We need to make sure that it is out of the way of the program | |
161 | that it will "exec", and that there is sufficient room for the brk. */ | |
162 | ||
163 | #define ELF_ET_DYN_BASE 0x0000010000000000UL | |
164 | #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL | |
165 | ||
166 | ||
167 | /* This yields a mask that user programs can use to figure out what | |
168 | instruction set this cpu supports. */ | |
169 | ||
170 | /* On Ultra, we support all of the v8 capabilities. */ | |
171 | static inline unsigned int sparc64_elf_hwcap(void) | |
172 | { | |
173 | unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | | |
174 | HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV | | |
175 | HWCAP_SPARC_V9); | |
176 | ||
177 | if (tlb_type == cheetah || tlb_type == cheetah_plus) | |
178 | cap |= HWCAP_SPARC_ULTRA3; | |
179 | else if (tlb_type == hypervisor) { | |
180 | if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || | |
181 | sun4v_chip_type == SUN4V_CHIP_NIAGARA2) | |
182 | cap |= HWCAP_SPARC_BLKINIT; | |
183 | if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2) | |
184 | cap |= HWCAP_SPARC_N2; | |
185 | } | |
186 | ||
187 | return cap; | |
188 | } | |
189 | ||
190 | #define ELF_HWCAP sparc64_elf_hwcap(); | |
191 | ||
192 | /* This yields a string that ld.so will use to load implementation | |
193 | specific libraries for optimization. This is more specific in | |
194 | intent than poking at uname or /proc/cpuinfo. */ | |
195 | ||
196 | #define ELF_PLATFORM (NULL) | |
197 | ||
198 | #define SET_PERSONALITY(ex, ibcs2) \ | |
199 | do { unsigned long new_flags = current_thread_info()->flags; \ | |
200 | new_flags &= _TIF_32BIT; \ | |
201 | if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ | |
202 | new_flags |= _TIF_32BIT; \ | |
203 | else \ | |
204 | new_flags &= ~_TIF_32BIT; \ | |
205 | if ((current_thread_info()->flags & _TIF_32BIT) \ | |
206 | != new_flags) \ | |
207 | set_thread_flag(TIF_ABI_PENDING); \ | |
208 | else \ | |
209 | clear_thread_flag(TIF_ABI_PENDING); \ | |
210 | /* flush_thread will update pgd cache */ \ | |
211 | if (ibcs2) \ | |
212 | set_personality(PER_SVR4); \ | |
213 | else if (current->personality != PER_LINUX32) \ | |
214 | set_personality(PER_LINUX); \ | |
215 | } while (0) | |
216 | ||
217 | #endif /* !(__ASM_SPARC64_ELF_H) */ |