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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* $Id: elf.h,v 1.32 2002/02/09 19:49:31 davem Exp $ */
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#ifdef __KERNEL__
11#include <asm/processor.h>
12#include <asm/uaccess.h>
David S. Miller97532f52006-02-17 10:14:38 -080013#include <asm/spitfire.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070014#endif
15
16/*
17 * Sparc section types
18 */
19#define STT_REGISTER 13
20
21/*
22 * Sparc ELF relocation types
23 */
24#define R_SPARC_NONE 0
25#define R_SPARC_8 1
26#define R_SPARC_16 2
27#define R_SPARC_32 3
28#define R_SPARC_DISP8 4
29#define R_SPARC_DISP16 5
30#define R_SPARC_DISP32 6
31#define R_SPARC_WDISP30 7
32#define R_SPARC_WDISP22 8
33#define R_SPARC_HI22 9
34#define R_SPARC_22 10
35#define R_SPARC_13 11
36#define R_SPARC_LO10 12
37#define R_SPARC_GOT10 13
38#define R_SPARC_GOT13 14
39#define R_SPARC_GOT22 15
40#define R_SPARC_PC10 16
41#define R_SPARC_PC22 17
42#define R_SPARC_WPLT30 18
43#define R_SPARC_COPY 19
44#define R_SPARC_GLOB_DAT 20
45#define R_SPARC_JMP_SLOT 21
46#define R_SPARC_RELATIVE 22
47#define R_SPARC_UA32 23
48#define R_SPARC_PLT32 24
49#define R_SPARC_HIPLT22 25
50#define R_SPARC_LOPLT10 26
51#define R_SPARC_PCPLT32 27
52#define R_SPARC_PCPLT22 28
53#define R_SPARC_PCPLT10 29
54#define R_SPARC_10 30
55#define R_SPARC_11 31
56#define R_SPARC_64 32
57#define R_SPARC_OLO10 33
58#define R_SPARC_WDISP16 40
59#define R_SPARC_WDISP19 41
60#define R_SPARC_7 43
61#define R_SPARC_5 44
62#define R_SPARC_6 45
63
64/* Bits present in AT_HWCAP, primarily for Sparc32. */
65
66#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */
67#define HWCAP_SPARC_STBAR 2
68#define HWCAP_SPARC_SWAP 4
69#define HWCAP_SPARC_MULDIV 8
70#define HWCAP_SPARC_V9 16
71#define HWCAP_SPARC_ULTRA3 32
David S. Miller97532f52006-02-17 10:14:38 -080072#define HWCAP_SPARC_BLKINIT 64
David S. Miller8b224b82007-08-16 13:56:39 -070073#define HWCAP_SPARC_N2 128
Linus Torvalds1da177e2005-04-16 15:20:36 -070074
75/*
76 * These are used to set parameters in the core dumps.
77 */
78#ifndef ELF_ARCH
79#define ELF_ARCH EM_SPARCV9
80#define ELF_CLASS ELFCLASS64
81#define ELF_DATA ELFDATA2MSB
82
83typedef unsigned long elf_greg_t;
84
85#define ELF_NGREG 36
86typedef elf_greg_t elf_gregset_t[ELF_NGREG];
87/* Format of 64-bit elf_gregset_t is:
88 * G0 --> G7
89 * O0 --> O7
90 * L0 --> L7
91 * I0 --> I7
92 * TSTATE
93 * TPC
94 * TNPC
95 * Y
96 */
97#define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs) \
98do { unsigned long *dest = &(__elf_regs[0]); \
99 struct pt_regs *src = (__pt_regs); \
100 unsigned long __user *sp; \
101 int i; \
102 for(i = 0; i < 16; i++) \
103 dest[i] = src->u_regs[i]; \
104 /* Don't try this at home kids... */ \
105 sp = (unsigned long __user *) \
106 ((src->u_regs[14] + STACK_BIAS) \
107 & 0xfffffffffffffff8UL); \
108 for(i = 0; i < 16; i++) \
109 __get_user(dest[i+16], &sp[i]); \
110 dest[32] = src->tstate; \
111 dest[33] = src->tpc; \
112 dest[34] = src->tnpc; \
113 dest[35] = src->y; \
114} while (0);
115
116typedef struct {
117 unsigned long pr_regs[32];
118 unsigned long pr_fsr;
119 unsigned long pr_gsr;
120 unsigned long pr_fprs;
121} elf_fpregset_t;
122#endif
123
124#define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs) \
Al Viro26ecbde2006-01-12 01:05:43 -0800125 ({ ELF_CORE_COPY_REGS((*(__elf_regs)), task_pt_regs(__tsk)); 1; })
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126
127/*
128 * This is used to ensure we don't load something for the wrong architecture.
129 */
130#ifndef elf_check_arch
131#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) /* Might be EM_SPARCV9 or EM_SPARC */
132#endif
133
134#define USE_ELF_CORE_DUMP
135#define ELF_EXEC_PAGESIZE PAGE_SIZE
136
137/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
138 use of this is to invoke "./ld.so someprog" to test out a new version of
139 the loader. We need to make sure that it is out of the way of the program
140 that it will "exec", and that there is sufficient room for the brk. */
141
142#ifndef ELF_ET_DYN_BASE
143#define ELF_ET_DYN_BASE 0x0000010000000000UL
144#endif
145
146
147/* This yields a mask that user programs can use to figure out what
148 instruction set this cpu supports. */
149
150/* On Ultra, we support all of the v8 capabilities. */
David S. Miller97532f52006-02-17 10:14:38 -0800151static inline unsigned int sparc64_elf_hwcap(void)
152{
153 unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR |
154 HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV |
155 HWCAP_SPARC_V9);
156
157 if (tlb_type == cheetah || tlb_type == cheetah_plus)
158 cap |= HWCAP_SPARC_ULTRA3;
David S. Miller8b224b82007-08-16 13:56:39 -0700159 else if (tlb_type == hypervisor) {
160 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 ||
161 sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
162 cap |= HWCAP_SPARC_BLKINIT;
163 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
164 cap |= HWCAP_SPARC_N2;
165 }
David S. Miller97532f52006-02-17 10:14:38 -0800166
167 return cap;
168}
169
170#define ELF_HWCAP sparc64_elf_hwcap();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171
172/* This yields a string that ld.so will use to load implementation
173 specific libraries for optimization. This is more specific in
174 intent than poking at uname or /proc/cpuinfo. */
175
176#define ELF_PLATFORM (NULL)
177
178#ifdef __KERNEL__
179#define SET_PERSONALITY(ex, ibcs2) \
180do { unsigned long new_flags = current_thread_info()->flags; \
181 new_flags &= _TIF_32BIT; \
182 if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
183 new_flags |= _TIF_32BIT; \
184 else \
185 new_flags &= ~_TIF_32BIT; \
186 if ((current_thread_info()->flags & _TIF_32BIT) \
187 != new_flags) \
188 set_thread_flag(TIF_ABI_PENDING); \
189 else \
190 clear_thread_flag(TIF_ABI_PENDING); \
191 /* flush_thread will update pgd cache */ \
192 if (ibcs2) \
193 set_personality(PER_SVR4); \
194 else if (current->personality != PER_LINUX32) \
195 set_personality(PER_LINUX); \
196} while (0)
197#endif
198
199#endif /* !(__ASM_SPARC64_ELF_H) */