1 /* SPDX-License-Identifier: GPL-2.0 */ 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 #include <asm/processor.h> 11 #include <asm/extable_64.h> 12 #include <asm/spitfire.h> 13 #include <asm/adi.h> 14 15 /* 16 * Sparc section types 17 */ 18 #define STT_REGISTER 13 19 20 /* 21 * Sparc ELF relocation types 22 */ 23 #define R_SPARC_NONE 0 24 #define R_SPARC_8 1 25 #define R_SPARC_16 2 26 #define R_SPARC_32 3 27 #define R_SPARC_DISP8 4 28 #define R_SPARC_DISP16 5 29 #define R_SPARC_DISP32 6 30 #define R_SPARC_WDISP30 7 31 #define R_SPARC_WDISP22 8 32 #define R_SPARC_HI22 9 33 #define R_SPARC_22 10 34 #define R_SPARC_13 11 35 #define R_SPARC_LO10 12 36 #define R_SPARC_GOT10 13 37 #define R_SPARC_GOT13 14 38 #define R_SPARC_GOT22 15 39 #define R_SPARC_PC10 16 40 #define R_SPARC_PC22 17 41 #define R_SPARC_WPLT30 18 42 #define R_SPARC_COPY 19 43 #define R_SPARC_GLOB_DAT 20 44 #define R_SPARC_JMP_SLOT 21 45 #define R_SPARC_RELATIVE 22 46 #define R_SPARC_UA32 23 47 #define R_SPARC_PLT32 24 48 #define R_SPARC_HIPLT22 25 49 #define R_SPARC_LOPLT10 26 50 #define R_SPARC_PCPLT32 27 51 #define R_SPARC_PCPLT22 28 52 #define R_SPARC_PCPLT10 29 53 #define R_SPARC_10 30 54 #define R_SPARC_11 31 55 #define R_SPARC_64 32 56 #define R_SPARC_OLO10 33 57 #define R_SPARC_WDISP16 40 58 #define R_SPARC_WDISP19 41 59 #define R_SPARC_7 43 60 #define R_SPARC_5 44 61 #define R_SPARC_6 45 62 63 /* Bits present in AT_HWCAP, primarily for Sparc32. */ 64 #define HWCAP_SPARC_FLUSH 0x00000001 65 #define HWCAP_SPARC_STBAR 0x00000002 66 #define HWCAP_SPARC_SWAP 0x00000004 67 #define HWCAP_SPARC_MULDIV 0x00000008 68 #define HWCAP_SPARC_V9 0x00000010 69 #define HWCAP_SPARC_ULTRA3 0x00000020 70 #define HWCAP_SPARC_BLKINIT 0x00000040 71 #define HWCAP_SPARC_N2 0x00000080 72 73 /* Solaris compatible AT_HWCAP bits. */ 74 #define AV_SPARC_MUL32 0x00000100 /* 32x32 multiply is efficient */ 75 #define AV_SPARC_DIV32 0x00000200 /* 32x32 divide is efficient */ 76 #define AV_SPARC_FSMULD 0x00000400 /* 'fsmuld' is efficient */ 77 #define AV_SPARC_V8PLUS 0x00000800 /* v9 insn available to 32bit */ 78 #define AV_SPARC_POPC 0x00001000 /* 'popc' is efficient */ 79 #define AV_SPARC_VIS 0x00002000 /* VIS insns available */ 80 #define AV_SPARC_VIS2 0x00004000 /* VIS2 insns available */ 81 #define AV_SPARC_ASI_BLK_INIT 0x00008000 /* block init ASIs available */ 82 #define AV_SPARC_FMAF 0x00010000 /* fused multiply-add */ 83 #define AV_SPARC_VIS3 0x00020000 /* VIS3 insns available */ 84 #define AV_SPARC_HPC 0x00040000 /* HPC insns available */ 85 #define AV_SPARC_RANDOM 0x00080000 /* 'random' insn available */ 86 #define AV_SPARC_TRANS 0x00100000 /* transaction insns available */ 87 #define AV_SPARC_FJFMAU 0x00200000 /* unfused multiply-add */ 88 #define AV_SPARC_IMA 0x00400000 /* integer multiply-add */ 89 #define AV_SPARC_ASI_CACHE_SPARING \ 90 0x00800000 /* cache sparing ASIs available */ 91 #define AV_SPARC_PAUSE 0x01000000 /* PAUSE available */ 92 #define AV_SPARC_CBCOND 0x02000000 /* CBCOND insns available */ 93 94 /* Solaris decided to enumerate every single crypto instruction type 95 * in the AT_HWCAP bits. This is wasteful, since if crypto is present, 96 * you still need to look in the CFR register to see if the opcode is 97 * really available. So we simply advertise only "crypto" support. 98 */ 99 #define HWCAP_SPARC_CRYPTO 0x04000000 /* CRYPTO insns available */ 100 #define HWCAP_SPARC_ADI 0x08000000 /* ADI available */ 101 102 #define CORE_DUMP_USE_REGSET 103 104 /* 105 * These are used to set parameters in the core dumps. 106 */ 107 #define ELF_ARCH EM_SPARCV9 108 #define ELF_CLASS ELFCLASS64 109 #define ELF_DATA ELFDATA2MSB 110 111 /* Format of 64-bit elf_gregset_t is: 112 * G0 --> G7 113 * O0 --> O7 114 * L0 --> L7 115 * I0 --> I7 116 * TSTATE 117 * TPC 118 * TNPC 119 * Y 120 */ 121 typedef unsigned long elf_greg_t; 122 #define ELF_NGREG 36 123 typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 124 125 typedef struct { 126 unsigned long pr_regs[32]; 127 unsigned long pr_fsr; 128 unsigned long pr_gsr; 129 unsigned long pr_fprs; 130 } elf_fpregset_t; 131 132 /* Format of 32-bit elf_gregset_t is: 133 * G0 --> G7 134 * O0 --> O7 135 * L0 --> L7 136 * I0 --> I7 137 * PSR, PC, nPC, Y, WIM, TBR 138 */ 139 typedef unsigned int compat_elf_greg_t; 140 #define COMPAT_ELF_NGREG 38 141 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG]; 142 143 typedef struct { 144 union { 145 unsigned int pr_regs[32]; 146 unsigned long pr_dregs[16]; 147 } pr_fr; 148 unsigned int __unused; 149 unsigned int pr_fsr; 150 unsigned char pr_qcnt; 151 unsigned char pr_q_entrysize; 152 unsigned char pr_en; 153 unsigned int pr_q[64]; 154 } compat_elf_fpregset_t; 155 156 /* UltraSparc extensions. Still unused, but will be eventually. */ 157 typedef struct { 158 unsigned int pr_type; 159 unsigned int pr_align; 160 union { 161 struct { 162 union { 163 unsigned int pr_regs[32]; 164 unsigned long pr_dregs[16]; 165 long double pr_qregs[8]; 166 } pr_xfr; 167 } pr_v8p; 168 unsigned int pr_xfsr; 169 unsigned int pr_fprs; 170 unsigned int pr_xg[8]; 171 unsigned int pr_xo[8]; 172 unsigned long pr_tstate; 173 unsigned int pr_filler[8]; 174 } pr_un; 175 } elf_xregset_t; 176 177 /* 178 * This is used to ensure we don't load something for the wrong architecture. 179 */ 180 #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) 181 #define compat_elf_check_arch(x) ((x)->e_machine == EM_SPARC || \ 182 (x)->e_machine == EM_SPARC32PLUS) 183 #define compat_start_thread start_thread32 184 185 #define ELF_EXEC_PAGESIZE PAGE_SIZE 186 187 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical 188 use of this is to invoke "./ld.so someprog" to test out a new version of 189 the loader. We need to make sure that it is out of the way of the program 190 that it will "exec", and that there is sufficient room for the brk. */ 191 192 #define ELF_ET_DYN_BASE 0x0000010000000000UL 193 #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL 194 195 extern unsigned long sparc64_elf_hwcap; 196 #define ELF_HWCAP sparc64_elf_hwcap 197 198 /* This yields a string that ld.so will use to load implementation 199 specific libraries for optimization. This is more specific in 200 intent than poking at uname or /proc/cpuinfo. */ 201 202 #define ELF_PLATFORM (NULL) 203 204 #define SET_PERSONALITY(ex) \ 205 do { if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ 206 set_thread_flag(TIF_32BIT); \ 207 else \ 208 clear_thread_flag(TIF_32BIT); \ 209 /* flush_thread will update pgd cache */ \ 210 if (personality(current->personality) != PER_LINUX32) \ 211 set_personality(PER_LINUX | \ 212 (current->personality & (~PER_MASK))); \ 213 } while (0) 214 215 extern unsigned int vdso_enabled; 216 217 #define ARCH_DLINFO \ 218 do { \ 219 extern struct adi_config adi_state; \ 220 if (vdso_enabled) \ 221 NEW_AUX_ENT(AT_SYSINFO_EHDR, \ 222 (unsigned long)current->mm->context.vdso); \ 223 NEW_AUX_ENT(AT_ADI_BLKSZ, adi_state.caps.blksz); \ 224 NEW_AUX_ENT(AT_ADI_NBITS, adi_state.caps.nbits); \ 225 NEW_AUX_ENT(AT_ADI_UEONADI, adi_state.caps.ue_on_adi); \ 226 } while (0) 227 228 struct linux_binprm; 229 230 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 231 extern int arch_setup_additional_pages(struct linux_binprm *bprm, 232 int uses_interp); 233 #endif /* !(__ASM_SPARC64_ELF_H) */ 234