tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 <linux/config.h>
10#include <asm/ptrace.h>
11
12#ifdef __KERNEL__
13#include <asm/mbus.h>
14#include <asm/uaccess.h>
15#endif
16
17/*
18 * Sparc section types
19 */
20#define STT_REGISTER 13
21
22/*
23 * Sparc ELF relocation types
24 */
25#define R_SPARC_NONE 0
26#define R_SPARC_8 1
27#define R_SPARC_16 2
28#define R_SPARC_32 3
29#define R_SPARC_DISP8 4
30#define R_SPARC_DISP16 5
31#define R_SPARC_DISP32 6
32#define R_SPARC_WDISP30 7
33#define R_SPARC_WDISP22 8
34#define R_SPARC_HI22 9
35#define R_SPARC_22 10
36#define R_SPARC_13 11
37#define R_SPARC_LO10 12
38#define R_SPARC_GOT10 13
39#define R_SPARC_GOT13 14
40#define R_SPARC_GOT22 15
41#define R_SPARC_PC10 16
42#define R_SPARC_PC22 17
43#define R_SPARC_WPLT30 18
44#define R_SPARC_COPY 19
45#define R_SPARC_GLOB_DAT 20
46#define R_SPARC_JMP_SLOT 21
47#define R_SPARC_RELATIVE 22
48#define R_SPARC_UA32 23
49#define R_SPARC_PLT32 24
50#define R_SPARC_HIPLT22 25
51#define R_SPARC_LOPLT10 26
52#define R_SPARC_PCPLT32 27
53#define R_SPARC_PCPLT22 28
54#define R_SPARC_PCPLT10 29
55#define R_SPARC_10 30
56#define R_SPARC_11 31
57#define R_SPARC_64 32
58#define R_SPARC_OLO10 33
59#define R_SPARC_WDISP16 40
60#define R_SPARC_WDISP19 41
61#define R_SPARC_7 43
62#define R_SPARC_5 44
63#define R_SPARC_6 45
64
65/* Bits present in AT_HWCAP, primarily for Sparc32. */
66
67#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */
68#define HWCAP_SPARC_STBAR 2
69#define HWCAP_SPARC_SWAP 4
70#define HWCAP_SPARC_MULDIV 8
71#define HWCAP_SPARC_V9 16
72#define HWCAP_SPARC_ULTRA3 32
73
74/* For the most part we present code dumps in the format
75 * Solaris does.
76 */
77typedef unsigned long elf_greg_t;
78#define ELF_NGREG 38
79typedef elf_greg_t elf_gregset_t[ELF_NGREG];
80
81/* Format is:
82 * G0 --> G7
83 * O0 --> O7
84 * L0 --> L7
85 * I0 --> I7
86 * PSR, PC, nPC, Y, WIM, TBR
87 */
88#define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs) \
89do { unsigned long *dest = &(__elf_regs[0]); \
90 struct pt_regs *src = (__pt_regs); \
91 unsigned long __user *sp; \
92 memcpy(&dest[0], &src->u_regs[0], \
93 sizeof(unsigned long) * 16); \
94 /* Don't try this at home kids... */ \
95 sp = (unsigned long __user *) src->u_regs[14]; \
96 copy_from_user(&dest[16], sp, \
97 sizeof(unsigned long) * 16); \
98 dest[32] = src->psr; \
99 dest[33] = src->pc; \
100 dest[34] = src->npc; \
101 dest[35] = src->y; \
102 dest[36] = dest[37] = 0; /* XXX */ \
103} while(0); /* Janitors: Don't touch this colon. */
104
105typedef struct {
106 union {
107 unsigned long pr_regs[32];
108 double pr_dregs[16];
109 } pr_fr;
110 unsigned long __unused;
111 unsigned long pr_fsr;
112 unsigned char pr_qcnt;
113 unsigned char pr_q_entrysize;
114 unsigned char pr_en;
115 unsigned int pr_q[64];
116} elf_fpregset_t;
117
118#define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs) \
119 ({ ELF_CORE_COPY_REGS((*(__elf_regs)), (__tsk)->thread.kregs); 1; })
120
121/*
122 * This is used to ensure we don't load something for the wrong architecture.
123 */
124#define elf_check_arch(x) ((x)->e_machine == EM_SPARC)
125
126/*
127 * These are used to set parameters in the core dumps.
128 */
129#define ELF_ARCH EM_SPARC
130#define ELF_CLASS ELFCLASS32
131#define ELF_DATA ELFDATA2MSB
132
133#define USE_ELF_CORE_DUMP
134#ifndef CONFIG_SUN4
135#define ELF_EXEC_PAGESIZE 4096
136#else
137#define ELF_EXEC_PAGESIZE 8192
138#endif
139
140
141/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
142 use of this is to invoke "./ld.so someprog" to test out a new version of
143 the loader. We need to make sure that it is out of the way of the program
144 that it will "exec", and that there is sufficient room for the brk. */
145
146#define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE)
147
148/* This yields a mask that user programs can use to figure out what
149 instruction set this cpu supports. This can NOT be done in userspace
150 on Sparc. */
151
152/* Sun4c has none of the capabilities, most sun4m's have them all.
153 * XXX This is gross, set some global variable at boot time. -DaveM
154 */
155#define ELF_HWCAP ((ARCH_SUN4C_SUN4) ? 0 : \
156 (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \
157 HWCAP_SPARC_SWAP | \
158 ((srmmu_modtype != Cypress && \
159 srmmu_modtype != Cypress_vE && \
160 srmmu_modtype != Cypress_vD) ? \
161 HWCAP_SPARC_MULDIV : 0)))
162
163/* This yields a string that ld.so will use to load implementation
164 specific libraries for optimization. This is more specific in
165 intent than poking at uname or /proc/cpuinfo. */
166
167#define ELF_PLATFORM (NULL)
168
169#ifdef __KERNEL__
170#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
171#endif
172
173#endif /* !(__ASMSPARC_ELF_H) */