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