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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 #define HWCAP_SPARC_FLUSH       0x00000001
63 #define HWCAP_SPARC_STBAR       0x00000002
64 #define HWCAP_SPARC_SWAP        0x00000004
65 #define HWCAP_SPARC_MULDIV      0x00000008
66 #define HWCAP_SPARC_V9		0x00000010
67 #define HWCAP_SPARC_ULTRA3	0x00000020
68 #define HWCAP_SPARC_BLKINIT	0x00000040
69 #define HWCAP_SPARC_N2		0x00000080
70 
71 /* Solaris compatible AT_HWCAP bits. */
72 #define AV_SPARC_MUL32		0x00000100 /* 32x32 multiply is efficient */
73 #define AV_SPARC_DIV32		0x00000200 /* 32x32 divide is efficient */
74 #define AV_SPARC_FSMULD		0x00000400 /* 'fsmuld' is efficient */
75 #define AV_SPARC_V8PLUS		0x00000800 /* v9 insn available to 32bit */
76 #define AV_SPARC_POPC		0x00001000 /* 'popc' is efficient */
77 #define AV_SPARC_VIS		0x00002000 /* VIS insns available */
78 #define AV_SPARC_VIS2		0x00004000 /* VIS2 insns available */
79 #define AV_SPARC_ASI_BLK_INIT	0x00008000 /* block init ASIs available */
80 #define AV_SPARC_FMAF		0x00010000 /* fused multiply-add */
81 #define AV_SPARC_VIS3		0x00020000 /* VIS3 insns available */
82 #define AV_SPARC_HPC		0x00040000 /* HPC insns available */
83 #define AV_SPARC_RANDOM		0x00080000 /* 'random' insn available */
84 #define AV_SPARC_TRANS		0x00100000 /* transaction insns available */
85 #define AV_SPARC_FJFMAU		0x00200000 /* unfused multiply-add */
86 #define AV_SPARC_IMA		0x00400000 /* integer multiply-add */
87 #define AV_SPARC_ASI_CACHE_SPARING \
88 				0x00800000 /* cache sparing ASIs available */
89 #define AV_SPARC_PAUSE		0x01000000 /* PAUSE available */
90 #define AV_SPARC_CBCOND		0x02000000 /* CBCOND insns available */
91 
92 /* Solaris decided to enumerate every single crypto instruction type
93  * in the AT_HWCAP bits.  This is wasteful, since if crypto is present,
94  * you still need to look in the CFR register to see if the opcode is
95  * really available.  So we simply advertise only "crypto" support.
96  */
97 #define HWCAP_SPARC_CRYPTO	0x04000000 /* CRYPTO insns available */
98 #define HWCAP_SPARC_ADI		0x08000000 /* ADI available */
99 
100 #define CORE_DUMP_USE_REGSET
101 
102 /*
103  * These are used to set parameters in the core dumps.
104  */
105 #define ELF_ARCH		EM_SPARCV9
106 #define ELF_CLASS		ELFCLASS64
107 #define ELF_DATA		ELFDATA2MSB
108 
109 /* Format of 64-bit elf_gregset_t is:
110  * 	G0 --> G7
111  * 	O0 --> O7
112  * 	L0 --> L7
113  * 	I0 --> I7
114  *	TSTATE
115  *	TPC
116  *	TNPC
117  *	Y
118  */
119 typedef unsigned long elf_greg_t;
120 #define ELF_NGREG 36
121 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
122 
123 typedef struct {
124 	unsigned long	pr_regs[32];
125 	unsigned long	pr_fsr;
126 	unsigned long	pr_gsr;
127 	unsigned long	pr_fprs;
128 } elf_fpregset_t;
129 
130 /* Format of 32-bit elf_gregset_t is:
131  * 	G0 --> G7
132  *	O0 --> O7
133  *	L0 --> L7
134  *	I0 --> I7
135  *	PSR, PC, nPC, Y, WIM, TBR
136  */
137 typedef unsigned int compat_elf_greg_t;
138 #define COMPAT_ELF_NGREG 38
139 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
140 
141 typedef struct {
142 	union {
143 		unsigned int	pr_regs[32];
144 		unsigned long	pr_dregs[16];
145 	} pr_fr;
146 	unsigned int __unused;
147 	unsigned int	pr_fsr;
148 	unsigned char	pr_qcnt;
149 	unsigned char	pr_q_entrysize;
150 	unsigned char	pr_en;
151 	unsigned int	pr_q[64];
152 } compat_elf_fpregset_t;
153 
154 /* UltraSparc extensions.  Still unused, but will be eventually.  */
155 typedef struct {
156 	unsigned int pr_type;
157 	unsigned int pr_align;
158 	union {
159 		struct {
160 			union {
161 				unsigned int	pr_regs[32];
162 				unsigned long	pr_dregs[16];
163 				long double	pr_qregs[8];
164 			} pr_xfr;
165 		} pr_v8p;
166 		unsigned int	pr_xfsr;
167 		unsigned int	pr_fprs;
168 		unsigned int	pr_xg[8];
169 		unsigned int	pr_xo[8];
170 		unsigned long	pr_tstate;
171 		unsigned int	pr_filler[8];
172 	} pr_un;
173 } elf_xregset_t;
174 
175 /*
176  * This is used to ensure we don't load something for the wrong architecture.
177  */
178 #define elf_check_arch(x)		((x)->e_machine == ELF_ARCH)
179 #define compat_elf_check_arch(x)	((x)->e_machine == EM_SPARC || \
180 					 (x)->e_machine == EM_SPARC32PLUS)
181 #define compat_start_thread		start_thread32
182 
183 #define ELF_EXEC_PAGESIZE	PAGE_SIZE
184 
185 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
186    use of this is to invoke "./ld.so someprog" to test out a new version of
187    the loader.  We need to make sure that it is out of the way of the program
188    that it will "exec", and that there is sufficient room for the brk.  */
189 
190 #define ELF_ET_DYN_BASE		0x0000010000000000UL
191 #define COMPAT_ELF_ET_DYN_BASE	0x0000000070000000UL
192 
193 extern unsigned long sparc64_elf_hwcap;
194 #define ELF_HWCAP	sparc64_elf_hwcap
195 
196 /* This yields a string that ld.so will use to load implementation
197    specific libraries for optimization.  This is more specific in
198    intent than poking at uname or /proc/cpuinfo.  */
199 
200 #define ELF_PLATFORM	(NULL)
201 
202 #define SET_PERSONALITY(ex)				\
203 do {	if ((ex).e_ident[EI_CLASS] == ELFCLASS32)	\
204 		set_thread_flag(TIF_32BIT);		\
205 	else						\
206 		clear_thread_flag(TIF_32BIT);		\
207 	/* flush_thread will update pgd cache */	\
208 	if (personality(current->personality) != PER_LINUX32)	\
209 		set_personality(PER_LINUX |		\
210 			(current->personality & (~PER_MASK)));	\
211 } while (0)
212 
213 #endif /* !(__ASM_SPARC64_ELF_H) */
214