1 /* $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
6 * ELF register definitions..
9 #include <asm/ptrace.h>
10 #include <asm/processor.h>
11 #include <asm/uaccess.h>
12 #include <asm/spitfire.h>
17 #define STT_REGISTER 13
20 * Sparc ELF relocation types
22 #define R_SPARC_NONE 0
26 #define R_SPARC_DISP8 4
27 #define R_SPARC_DISP16 5
28 #define R_SPARC_DISP32 6
29 #define R_SPARC_WDISP30 7
30 #define R_SPARC_WDISP22 8
31 #define R_SPARC_HI22 9
34 #define R_SPARC_LO10 12
35 #define R_SPARC_GOT10 13
36 #define R_SPARC_GOT13 14
37 #define R_SPARC_GOT22 15
38 #define R_SPARC_PC10 16
39 #define R_SPARC_PC22 17
40 #define R_SPARC_WPLT30 18
41 #define R_SPARC_COPY 19
42 #define R_SPARC_GLOB_DAT 20
43 #define R_SPARC_JMP_SLOT 21
44 #define R_SPARC_RELATIVE 22
45 #define R_SPARC_UA32 23
46 #define R_SPARC_PLT32 24
47 #define R_SPARC_HIPLT22 25
48 #define R_SPARC_LOPLT10 26
49 #define R_SPARC_PCPLT32 27
50 #define R_SPARC_PCPLT22 28
51 #define R_SPARC_PCPLT10 29
55 #define R_SPARC_OLO10 33
56 #define R_SPARC_WDISP16 40
57 #define R_SPARC_WDISP19 41
62 /* Bits present in AT_HWCAP, primarily for Sparc32. */
64 #define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */
65 #define HWCAP_SPARC_STBAR 2
66 #define HWCAP_SPARC_SWAP 4
67 #define HWCAP_SPARC_MULDIV 8
68 #define HWCAP_SPARC_V9 16
69 #define HWCAP_SPARC_ULTRA3 32
70 #define HWCAP_SPARC_BLKINIT 64
71 #define HWCAP_SPARC_N2 128
74 * These are used to set parameters in the core dumps.
77 #define ELF_ARCH EM_SPARCV9
78 #define ELF_CLASS ELFCLASS64
79 #define ELF_DATA ELFDATA2MSB
81 typedef unsigned long elf_greg_t
;
84 typedef elf_greg_t elf_gregset_t
[ELF_NGREG
];
85 /* Format of 64-bit elf_gregset_t is:
95 #define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs) \
96 do { unsigned long *dest = &(__elf_regs[0]); \
97 struct pt_regs *src = (__pt_regs); \
98 unsigned long __user *sp; \
100 for(i = 0; i < 16; i++) \
101 dest[i] = src->u_regs[i]; \
102 /* Don't try this at home kids... */ \
103 sp = (unsigned long __user *) \
104 ((src->u_regs[14] + STACK_BIAS) \
105 & 0xfffffffffffffff8UL); \
106 for(i = 0; i < 16; i++) \
107 __get_user(dest[i+16], &sp[i]); \
108 dest[32] = src->tstate; \
109 dest[33] = src->tpc; \
110 dest[34] = src->tnpc; \
115 unsigned long pr_regs
[32];
116 unsigned long pr_fsr
;
117 unsigned long pr_gsr
;
118 unsigned long pr_fprs
;
122 #define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs) \
123 ({ ELF_CORE_COPY_REGS((*(__elf_regs)), task_pt_regs(__tsk)); 1; })
126 * This is used to ensure we don't load something for the wrong architecture.
128 #ifndef elf_check_arch
129 #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) /* Might be EM_SPARCV9 or EM_SPARC */
132 #define USE_ELF_CORE_DUMP
133 #define ELF_EXEC_PAGESIZE PAGE_SIZE
135 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical
136 use of this is to invoke "./ld.so someprog" to test out a new version of
137 the loader. We need to make sure that it is out of the way of the program
138 that it will "exec", and that there is sufficient room for the brk. */
140 #ifndef ELF_ET_DYN_BASE
141 #define ELF_ET_DYN_BASE 0x0000010000000000UL
145 /* This yields a mask that user programs can use to figure out what
146 instruction set this cpu supports. */
148 /* On Ultra, we support all of the v8 capabilities. */
149 static inline unsigned int sparc64_elf_hwcap(void)
151 unsigned int cap
= (HWCAP_SPARC_FLUSH
| HWCAP_SPARC_STBAR
|
152 HWCAP_SPARC_SWAP
| HWCAP_SPARC_MULDIV
|
155 if (tlb_type
== cheetah
|| tlb_type
== cheetah_plus
)
156 cap
|= HWCAP_SPARC_ULTRA3
;
157 else if (tlb_type
== hypervisor
) {
158 if (sun4v_chip_type
== SUN4V_CHIP_NIAGARA1
||
159 sun4v_chip_type
== SUN4V_CHIP_NIAGARA2
)
160 cap
|= HWCAP_SPARC_BLKINIT
;
161 if (sun4v_chip_type
== SUN4V_CHIP_NIAGARA2
)
162 cap
|= HWCAP_SPARC_N2
;
168 #define ELF_HWCAP sparc64_elf_hwcap();
170 /* This yields a string that ld.so will use to load implementation
171 specific libraries for optimization. This is more specific in
172 intent than poking at uname or /proc/cpuinfo. */
174 #define ELF_PLATFORM (NULL)
176 #define SET_PERSONALITY(ex, ibcs2) \
177 do { unsigned long new_flags = current_thread_info()->flags; \
178 new_flags &= _TIF_32BIT; \
179 if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
180 new_flags |= _TIF_32BIT; \
182 new_flags &= ~_TIF_32BIT; \
183 if ((current_thread_info()->flags & _TIF_32BIT) \
185 set_thread_flag(TIF_ABI_PENDING); \
187 clear_thread_flag(TIF_ABI_PENDING); \
188 /* flush_thread will update pgd cache */ \
190 set_personality(PER_SVR4); \
191 else if (current->personality != PER_LINUX32) \
192 set_personality(PER_LINUX); \
195 #endif /* !(__ASM_SPARC64_ELF_H) */
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