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
73 #define CORE_DUMP_USE_REGSET
76 * These are used to set parameters in the core dumps.
78 #define ELF_ARCH EM_SPARCV9
79 #define ELF_CLASS ELFCLASS64
80 #define ELF_DATA ELFDATA2MSB
82 /* Format of 64-bit elf_gregset_t is:
92 typedef unsigned long elf_greg_t;
94 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
97 unsigned long pr_regs[32];
100 unsigned long pr_fprs;
103 /* Format of 32-bit elf_gregset_t is:
108 * PSR, PC, nPC, Y, WIM, TBR
110 typedef unsigned int compat_elf_greg_t;
111 #define COMPAT_ELF_NGREG 38
112 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
116 unsigned int pr_regs[32];
117 unsigned long pr_dregs[16];
119 unsigned int __unused;
121 unsigned char pr_qcnt;
122 unsigned char pr_q_entrysize;
124 unsigned int pr_q[64];
125 } compat_elf_fpregset_t;
127 /* UltraSparc extensions. Still unused, but will be eventually. */
129 unsigned int pr_type;
130 unsigned int pr_align;
134 unsigned int pr_regs[32];
135 unsigned long pr_dregs[16];
136 long double pr_qregs[8];
139 unsigned int pr_xfsr;
140 unsigned int pr_fprs;
141 unsigned int pr_xg[8];
142 unsigned int pr_xo[8];
143 unsigned long pr_tstate;
144 unsigned int pr_filler[8];
149 * This is used to ensure we don't load something for the wrong architecture.
151 #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)
152 #define compat_elf_check_arch(x) ((x)->e_machine == EM_SPARC || \
153 (x)->e_machine == EM_SPARC32PLUS)
154 #define compat_start_thread start_thread32
156 #define USE_ELF_CORE_DUMP
157 #define ELF_EXEC_PAGESIZE PAGE_SIZE
159 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical
160 use of this is to invoke "./ld.so someprog" to test out a new version of
161 the loader. We need to make sure that it is out of the way of the program
162 that it will "exec", and that there is sufficient room for the brk. */
164 #define ELF_ET_DYN_BASE 0x0000010000000000UL
165 #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
168 /* This yields a mask that user programs can use to figure out what
169 instruction set this cpu supports. */
171 /* On Ultra, we support all of the v8 capabilities. */
172 static inline unsigned int sparc64_elf_hwcap(void)
174 unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR |
175 HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV |
178 if (tlb_type == cheetah || tlb_type == cheetah_plus)
179 cap |= HWCAP_SPARC_ULTRA3;
180 else if (tlb_type == hypervisor) {
181 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 ||
182 sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
183 cap |= HWCAP_SPARC_BLKINIT;
184 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
185 cap |= HWCAP_SPARC_N2;
191 #define ELF_HWCAP sparc64_elf_hwcap();
193 /* This yields a string that ld.so will use to load implementation
194 specific libraries for optimization. This is more specific in
195 intent than poking at uname or /proc/cpuinfo. */
197 #define ELF_PLATFORM (NULL)
199 #define SET_PERSONALITY(ex, ibcs2) \
200 do { unsigned long new_flags = current_thread_info()->flags; \
201 new_flags &= _TIF_32BIT; \
202 if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
203 new_flags |= _TIF_32BIT; \
205 new_flags &= ~_TIF_32BIT; \
206 if ((current_thread_info()->flags & _TIF_32BIT) \
208 set_thread_flag(TIF_ABI_PENDING); \
210 clear_thread_flag(TIF_ABI_PENDING); \
211 /* flush_thread will update pgd cache */ \
213 set_personality(PER_SVR4); \
214 else if (current->personality != PER_LINUX32) \
215 set_personality(PER_LINUX); \
218 #endif /* !(__ASM_SPARC64_ELF_H) */