arch/sparc/include/asm/elf_64.h

   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) */