1/* $Id: elf.h,v 1.1.1.1 2007/08/03 18:53:36 Exp $ */ 2#ifndef __ASM_SPARC64_ELF_H 3#define __ASM_SPARC64_ELF_H 4 5/* 6 * ELF register definitions.. 7 */ 8 9#include <asm/ptrace.h> 10#ifdef __KERNEL__ 11#include <asm/processor.h> 12#include <asm/uaccess.h> 13#include <asm/spitfire.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#define HWCAP_SPARC_BLKINIT 64 73 74/* 75 * These are used to set parameters in the core dumps. 76 */ 77#ifndef ELF_ARCH 78#define ELF_ARCH EM_SPARCV9 79#define ELF_CLASS ELFCLASS64 80#define ELF_DATA ELFDATA2MSB 81 82typedef unsigned long elf_greg_t; 83 84#define ELF_NGREG 36 85typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 86/* Format of 64-bit elf_gregset_t is: 87 * G0 --> G7 88 * O0 --> O7 89 * L0 --> L7 90 * I0 --> I7 91 * TSTATE 92 * TPC 93 * TNPC 94 * Y 95 */ 96#define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs) \ 97do { unsigned long *dest = &(__elf_regs[0]); \ 98 struct pt_regs *src = (__pt_regs); \ 99 unsigned long __user *sp; \ 100 int i; \ 101 for(i = 0; i < 16; i++) \ 102 dest[i] = src->u_regs[i]; \ 103 /* Don't try this at home kids... */ \ 104 sp = (unsigned long __user *) \ 105 ((src->u_regs[14] + STACK_BIAS) \ 106 & 0xfffffffffffffff8UL); \ 107 for(i = 0; i < 16; i++) \ 108 __get_user(dest[i+16], &sp[i]); \ 109 dest[32] = src->tstate; \ 110 dest[33] = src->tpc; \ 111 dest[34] = src->tnpc; \ 112 dest[35] = src->y; \ 113} while (0); 114 115typedef struct { 116 unsigned long pr_regs[32]; 117 unsigned long pr_fsr; 118 unsigned long pr_gsr; 119 unsigned long pr_fprs; 120} elf_fpregset_t; 121#endif 122 123#define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs) \ 124 ({ ELF_CORE_COPY_REGS((*(__elf_regs)), task_pt_regs(__tsk)); 1; }) 125 126/* 127 * This is used to ensure we don't load something for the wrong architecture. 128 */ 129#ifndef elf_check_arch 130#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) /* Might be EM_SPARCV9 or EM_SPARC */ 131#endif 132 133#define USE_ELF_CORE_DUMP 134#define ELF_EXEC_PAGESIZE PAGE_SIZE 135 136/* This is the location that an ET_DYN program is loaded if exec'ed. Typical 137 use of this is to invoke "./ld.so someprog" to test out a new version of 138 the loader. We need to make sure that it is out of the way of the program 139 that it will "exec", and that there is sufficient room for the brk. */ 140 141#ifndef ELF_ET_DYN_BASE 142#define ELF_ET_DYN_BASE 0x0000010000000000UL 143#endif 144 145 146/* This yields a mask that user programs can use to figure out what 147 instruction set this cpu supports. */ 148 149/* On Ultra, we support all of the v8 capabilities. */ 150static inline unsigned int sparc64_elf_hwcap(void) 151{ 152 unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | 153 HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV | 154 HWCAP_SPARC_V9); 155 156 if (tlb_type == cheetah || tlb_type == cheetah_plus) 157 cap |= HWCAP_SPARC_ULTRA3; 158 else if (tlb_type == hypervisor) 159 cap |= HWCAP_SPARC_BLKINIT; 160 161 return cap; 162} 163 164#define ELF_HWCAP sparc64_elf_hwcap(); 165 166/* This yields a string that ld.so will use to load implementation 167 specific libraries for optimization. This is more specific in 168 intent than poking at uname or /proc/cpuinfo. */ 169 170#define ELF_PLATFORM (NULL) 171 172#ifdef __KERNEL__ 173#define SET_PERSONALITY(ex, ibcs2) \ 174do { unsigned long new_flags = current_thread_info()->flags; \ 175 new_flags &= _TIF_32BIT; \ 176 if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ 177 new_flags |= _TIF_32BIT; \ 178 else \ 179 new_flags &= ~_TIF_32BIT; \ 180 if ((current_thread_info()->flags & _TIF_32BIT) \ 181 != new_flags) \ 182 set_thread_flag(TIF_ABI_PENDING); \ 183 else \ 184 clear_thread_flag(TIF_ABI_PENDING); \ 185 /* flush_thread will update pgd cache */ \ 186 if (ibcs2) \ 187 set_personality(PER_SVR4); \ 188 else if (current->personality != PER_LINUX32) \ 189 set_personality(PER_LINUX); \ 190} while (0) 191#endif 192 193#endif /* !(__ASM_SPARC64_ELF_H) */ 194