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1/* $Id: elf.h,v 1.22 2000/07/12 01:27:08 davem Exp $ */
2#ifndef __ASMSPARC_ELF_H
3#define __ASMSPARC_ELF_H
4
5/*
6 * ELF register definitions..
7 */
8
9#include <asm/ptrace.h>
10
11#ifdef __KERNEL__
12#include <asm/mbus.h>
13#include <asm/uaccess.h>
14#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
72
73/* For the most part we present code dumps in the format
74 * Solaris does.
75 */
76typedef unsigned long elf_greg_t;
77#define ELF_NGREG 38
78typedef elf_greg_t elf_gregset_t[ELF_NGREG];
79
80/* Format is:
81 * G0 --> G7
82 * O0 --> O7
83 * L0 --> L7
84 * I0 --> I7
85 * PSR, PC, nPC, Y, WIM, TBR
86 */
87#define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs) \
88do { unsigned long *dest = &(__elf_regs[0]); \
89 struct pt_regs *src = (__pt_regs); \
90 unsigned long __user *sp; \
91 memcpy(&dest[0], &src->u_regs[0], \
92 sizeof(unsigned long) * 16); \
93 /* Don't try this at home kids... */ \
94 sp = (unsigned long __user *) src->u_regs[14]; \
95 copy_from_user(&dest[16], sp, \
96 sizeof(unsigned long) * 16); \
97 dest[32] = src->psr; \
98 dest[33] = src->pc; \
99 dest[34] = src->npc; \
100 dest[35] = src->y; \
101 dest[36] = dest[37] = 0; /* XXX */ \
102} while(0); /* Janitors: Don't touch this colon. */
103
104typedef struct {
105 union {
106 unsigned long pr_regs[32];
107 double pr_dregs[16];
108 } pr_fr;
109 unsigned long __unused;
110 unsigned long pr_fsr;
111 unsigned char pr_qcnt;
112 unsigned char pr_q_entrysize;
113 unsigned char pr_en;
114 unsigned int pr_q[64];
115} elf_fpregset_t;
116
117#define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs) \
118 ({ ELF_CORE_COPY_REGS((*(__elf_regs)), (__tsk)->thread.kregs); 1; })
119
120/*
121 * This is used to ensure we don't load something for the wrong architecture.
122 */
123#define elf_check_arch(x) ((x)->e_machine == EM_SPARC)
124
125/*
126 * These are used to set parameters in the core dumps.
127 */
128#define ELF_ARCH EM_SPARC
129#define ELF_CLASS ELFCLASS32
130#define ELF_DATA ELFDATA2MSB
131
132#define USE_ELF_CORE_DUMP
133#ifndef CONFIG_SUN4
134#define ELF_EXEC_PAGESIZE 4096
135#else
136#define ELF_EXEC_PAGESIZE 8192
137#endif
138
139
140/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
141 use of this is to invoke "./ld.so someprog" to test out a new version of
142 the loader. We need to make sure that it is out of the way of the program
143 that it will "exec", and that there is sufficient room for the brk. */
144
145#define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE)
146
147/* This yields a mask that user programs can use to figure out what
148 instruction set this cpu supports. This can NOT be done in userspace
149 on Sparc. */
150
151/* Sun4c has none of the capabilities, most sun4m's have them all.
152 * XXX This is gross, set some global variable at boot time. -DaveM
153 */
154#define ELF_HWCAP ((ARCH_SUN4C_SUN4) ? 0 : \
155 (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \
156 HWCAP_SPARC_SWAP | \
157 ((srmmu_modtype != Cypress && \
158 srmmu_modtype != Cypress_vE && \
159 srmmu_modtype != Cypress_vD) ? \
160 HWCAP_SPARC_MULDIV : 0)))
161
162/* This yields a string that ld.so will use to load implementation
163 specific libraries for optimization. This is more specific in
164 intent than poking at uname or /proc/cpuinfo. */
165
166#define ELF_PLATFORM (NULL)
167
168#ifdef __KERNEL__
169#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
170#endif
171
172#endif /* !(__ASMSPARC_ELF_H) */