1#ifndef __ASM_SPARC64_ELF_H 2#define __ASM_SPARC64_ELF_H 3 4/* 5 * ELF register definitions.. 6 */ 7 8#include <asm/ptrace.h> 9#include <asm/processor.h> 10#include <asm/uaccess.h> 11#include <asm/spitfire.h> 12 13/* 14 * Sparc section types 15 */ 16#define STT_REGISTER 13 17 18/* 19 * Sparc ELF relocation types 20 */ 21#define R_SPARC_NONE 0 22#define R_SPARC_8 1 23#define R_SPARC_16 2 24#define R_SPARC_32 3 25#define R_SPARC_DISP8 4 26#define R_SPARC_DISP16 5 27#define R_SPARC_DISP32 6 28#define R_SPARC_WDISP30 7 29#define R_SPARC_WDISP22 8 30#define R_SPARC_HI22 9 31#define R_SPARC_22 10 32#define R_SPARC_13 11 33#define R_SPARC_LO10 12 34#define R_SPARC_GOT10 13 35#define R_SPARC_GOT13 14 36#define R_SPARC_GOT22 15 37#define R_SPARC_PC10 16 38#define R_SPARC_PC22 17 39#define R_SPARC_WPLT30 18 40#define R_SPARC_COPY 19 41#define R_SPARC_GLOB_DAT 20 42#define R_SPARC_JMP_SLOT 21 43#define R_SPARC_RELATIVE 22 44#define R_SPARC_UA32 23 45#define R_SPARC_PLT32 24 46#define R_SPARC_HIPLT22 25 47#define R_SPARC_LOPLT10 26 48#define R_SPARC_PCPLT32 27 49#define R_SPARC_PCPLT22 28 50#define R_SPARC_PCPLT10 29 51#define R_SPARC_10 30 52#define R_SPARC_11 31 53#define R_SPARC_64 32 54#define R_SPARC_OLO10 33 55#define R_SPARC_WDISP16 40 56#define R_SPARC_WDISP19 41 57#define R_SPARC_7 43 58#define R_SPARC_5 44 59#define R_SPARC_6 45 60 61/* Bits present in AT_HWCAP, primarily for Sparc32. */ 62 63#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */ 64#define HWCAP_SPARC_STBAR 2 65#define HWCAP_SPARC_SWAP 4 66#define HWCAP_SPARC_MULDIV 8 67#define HWCAP_SPARC_V9 16 68#define HWCAP_SPARC_ULTRA3 32 69#define HWCAP_SPARC_BLKINIT 64 70#define HWCAP_SPARC_N2 128 71 72#define CORE_DUMP_USE_REGSET 73 74/* 75 * These are used to set parameters in the core dumps. 76 */ 77#define ELF_ARCH EM_SPARCV9 78#define ELF_CLASS ELFCLASS64 79#define ELF_DATA ELFDATA2MSB 80 81/* Format of 64-bit elf_gregset_t is: 82 * G0 --> G7 83 * O0 --> O7 84 * L0 --> L7 85 * I0 --> I7 86 * TSTATE 87 * TPC 88 * TNPC 89 * Y 90 */ 91typedef unsigned long elf_greg_t; 92#define ELF_NGREG 36 93typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 94 95typedef struct { 96 unsigned long pr_regs[32]; 97 unsigned long pr_fsr; 98 unsigned long pr_gsr; 99 unsigned long pr_fprs; 100} elf_fpregset_t; 101 102/* Format of 32-bit elf_gregset_t is: 103 * G0 --> G7 104 * O0 --> O7 105 * L0 --> L7 106 * I0 --> I7 107 * PSR, PC, nPC, Y, WIM, TBR 108 */ 109typedef unsigned int compat_elf_greg_t; 110#define COMPAT_ELF_NGREG 38 111typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG]; 112 113typedef struct { 114 union { 115 unsigned int pr_regs[32]; 116 unsigned long pr_dregs[16]; 117 } pr_fr; 118 unsigned int __unused; 119 unsigned int pr_fsr; 120 unsigned char pr_qcnt; 121 unsigned char pr_q_entrysize; 122 unsigned char pr_en; 123 unsigned int pr_q[64]; 124} compat_elf_fpregset_t; 125 126/* UltraSparc extensions. Still unused, but will be eventually. */ 127typedef struct { 128 unsigned int pr_type; 129 unsigned int pr_align; 130 union { 131 struct { 132 union { 133 unsigned int pr_regs[32]; 134 unsigned long pr_dregs[16]; 135 long double pr_qregs[8]; 136 } pr_xfr; 137 } pr_v8p; 138 unsigned int pr_xfsr; 139 unsigned int pr_fprs; 140 unsigned int pr_xg[8]; 141 unsigned int pr_xo[8]; 142 unsigned long pr_tstate; 143 unsigned int pr_filler[8]; 144 } pr_un; 145} elf_xregset_t; 146 147/* 148 * This is used to ensure we don't load something for the wrong architecture. 149 */ 150#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) 151#define compat_elf_check_arch(x) ((x)->e_machine == EM_SPARC || \ 152 (x)->e_machine == EM_SPARC32PLUS) 153#define compat_start_thread start_thread32 154 155#define USE_ELF_CORE_DUMP 156#define ELF_EXEC_PAGESIZE PAGE_SIZE 157 158/* This is the location that an ET_DYN program is loaded if exec'ed. Typical 159 use of this is to invoke "./ld.so someprog" to test out a new version of 160 the loader. We need to make sure that it is out of the way of the program 161 that it will "exec", and that there is sufficient room for the brk. */ 162 163#define ELF_ET_DYN_BASE 0x0000010000000000UL 164#define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL 165 166 167/* This yields a mask that user programs can use to figure out what 168 instruction set this cpu supports. */ 169 170/* On Ultra, we support all of the v8 capabilities. */ 171static inline unsigned int sparc64_elf_hwcap(void) 172{ 173 unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | 174 HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV | 175 HWCAP_SPARC_V9); 176 177 if (tlb_type == cheetah || tlb_type == cheetah_plus) 178 cap |= HWCAP_SPARC_ULTRA3; 179 else if (tlb_type == hypervisor) { 180 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || 181 sun4v_chip_type == SUN4V_CHIP_NIAGARA2) 182 cap |= HWCAP_SPARC_BLKINIT; 183 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2) 184 cap |= HWCAP_SPARC_N2; 185 } 186 187 return cap; 188} 189 190#define ELF_HWCAP sparc64_elf_hwcap(); 191 192/* This yields a string that ld.so will use to load implementation 193 specific libraries for optimization. This is more specific in 194 intent than poking at uname or /proc/cpuinfo. */ 195 196#define ELF_PLATFORM (NULL) 197 198#define SET_PERSONALITY(ex) \ 199do { unsigned long new_flags = current_thread_info()->flags; \ 200 new_flags &= _TIF_32BIT; \ 201 if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ 202 new_flags |= _TIF_32BIT; \ 203 else \ 204 new_flags &= ~_TIF_32BIT; \ 205 if ((current_thread_info()->flags & _TIF_32BIT) \ 206 != new_flags) \ 207 set_thread_flag(TIF_ABI_PENDING); \ 208 else \ 209 clear_thread_flag(TIF_ABI_PENDING); \ 210 /* flush_thread will update pgd cache */ \ 211 if (personality(current->personality) != PER_LINUX32) \ 212 set_personality(PER_LINUX | \ 213 (current->personality & (~PER_MASK))); \ 214} while (0) 215 216#endif /* !(__ASM_SPARC64_ELF_H) */ 217