elf_64.h

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#ifndef __ASM_SPARC64_ELF_H
#define __ASM_SPARC64_ELF_H

/*
 * ELF register definitions..
 */

#include <asm/ptrace.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
#include <asm/spitfire.h>

/*
 * Sparc section types
 */
#define STT_REGISTER        13

/*
 * Sparc ELF relocation types
 */
#define R_SPARC_NONE        0
#define R_SPARC_8       1
#define R_SPARC_16      2
#define R_SPARC_32      3
#define R_SPARC_DISP8       4
#define R_SPARC_DISP16      5
#define R_SPARC_DISP32      6
#define R_SPARC_WDISP30     7
#define R_SPARC_WDISP22     8
#define R_SPARC_HI22        9
#define R_SPARC_22      10
#define R_SPARC_13      11
#define R_SPARC_LO10        12
#define R_SPARC_GOT10       13
#define R_SPARC_GOT13       14
#define R_SPARC_GOT22       15
#define R_SPARC_PC10        16
#define R_SPARC_PC22        17
#define R_SPARC_WPLT30      18
#define R_SPARC_COPY        19
#define R_SPARC_GLOB_DAT    20
#define R_SPARC_JMP_SLOT    21
#define R_SPARC_RELATIVE    22
#define R_SPARC_UA32        23
#define R_SPARC_PLT32       24
#define R_SPARC_HIPLT22     25
#define R_SPARC_LOPLT10     26
#define R_SPARC_PCPLT32     27
#define R_SPARC_PCPLT22     28
#define R_SPARC_PCPLT10     29
#define R_SPARC_10      30
#define R_SPARC_11      31
#define R_SPARC_64      32
#define R_SPARC_OLO10       33
#define R_SPARC_WDISP16     40
#define R_SPARC_WDISP19     41
#define R_SPARC_7       43
#define R_SPARC_5       44
#define R_SPARC_6       45

/* Bits present in AT_HWCAP, primarily for Sparc32.  */
#define HWCAP_SPARC_FLUSH       0x00000001
#define HWCAP_SPARC_STBAR       0x00000002
#define HWCAP_SPARC_SWAP        0x00000004
#define HWCAP_SPARC_MULDIV      0x00000008
#define HWCAP_SPARC_V9      0x00000010
#define HWCAP_SPARC_ULTRA3  0x00000020
#define HWCAP_SPARC_BLKINIT 0x00000040
#define HWCAP_SPARC_N2      0x00000080

/* Solaris compatible AT_HWCAP bits. */
#define AV_SPARC_MUL32      0x00000100 /* 32x32 multiply is efficient */
#define AV_SPARC_DIV32      0x00000200 /* 32x32 divide is efficient */
#define AV_SPARC_FSMULD     0x00000400 /* 'fsmuld' is efficient */
#define AV_SPARC_V8PLUS     0x00000800 /* v9 insn available to 32bit */
#define AV_SPARC_POPC       0x00001000 /* 'popc' is efficient */
#define AV_SPARC_VIS        0x00002000 /* VIS insns available */
#define AV_SPARC_VIS2       0x00004000 /* VIS2 insns available */
#define AV_SPARC_ASI_BLK_INIT   0x00008000 /* block init ASIs available */
#define AV_SPARC_FMAF       0x00010000 /* fused multiply-add */
#define AV_SPARC_VIS3       0x00020000 /* VIS3 insns available */
#define AV_SPARC_HPC        0x00040000 /* HPC insns available */
#define AV_SPARC_RANDOM     0x00080000 /* 'random' insn available */
#define AV_SPARC_TRANS      0x00100000 /* transaction insns available */
#define AV_SPARC_FJFMAU     0x00200000 /* unfused multiply-add */
#define AV_SPARC_IMA        0x00400000 /* integer multiply-add */
#define AV_SPARC_ASI_CACHE_SPARING \
                0x00800000 /* cache sparing ASIs available */
#define AV_SPARC_PAUSE      0x01000000 /* PAUSE available */
#define AV_SPARC_CBCOND     0x02000000 /* CBCOND insns available */

/* Solaris decided to enumerate every single crypto instruction type
 * in the AT_HWCAP bits.  This is wasteful, since if crypto is present,
 * you still need to look in the CFR register to see if the opcode is
 * really available.  So we simply advertise only "crypto" support.
 */
#define HWCAP_SPARC_CRYPTO  0x04000000 /* CRYPTO insns available */

#define CORE_DUMP_USE_REGSET

/*
 * These are used to set parameters in the core dumps.
 */
#define ELF_ARCH        EM_SPARCV9
#define ELF_CLASS       ELFCLASS64
#define ELF_DATA        ELFDATA2MSB

/* Format of 64-bit elf_gregset_t is:
 *  G0 --> G7
 *  O0 --> O7
 *  L0 --> L7
 *  I0 --> I7
 *  TSTATE
 *  TPC
 *  TNPC
 *  Y
 */
typedef unsigned long elf_greg_t;
#define ELF_NGREG 36
typedef elf_greg_t elf_gregset_t[ELF_NGREG];

typedef struct {
    unsigned long   pr_regs[32];
    unsigned long   pr_fsr;
    unsigned long   pr_gsr;
    unsigned long   pr_fprs;
} elf_fpregset_t;

/* Format of 32-bit elf_gregset_t is:
 *  G0 --> G7
 *  O0 --> O7
 *  L0 --> L7
 *  I0 --> I7
 *  PSR, PC, nPC, Y, WIM, TBR
 */
typedef unsigned int compat_elf_greg_t;
#define COMPAT_ELF_NGREG 38
typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];

typedef struct {
    union {
        unsigned int    pr_regs[32];
        unsigned long   pr_dregs[16];
    } pr_fr;
    unsigned int __unused;
    unsigned int    pr_fsr;
    unsigned char   pr_qcnt;
    unsigned char   pr_q_entrysize;
    unsigned char   pr_en;
    unsigned int    pr_q[64];
} compat_elf_fpregset_t;

/* UltraSparc extensions.  Still unused, but will be eventually.  */
typedef struct {
    unsigned int pr_type;
    unsigned int pr_align;
    union {
        struct {
            union {
                unsigned int    pr_regs[32];
                unsigned long   pr_dregs[16];
                long double pr_qregs[8];
            } pr_xfr;
        } pr_v8p;
        unsigned int    pr_xfsr;
        unsigned int    pr_fprs;
        unsigned int    pr_xg[8];
        unsigned int    pr_xo[8];
        unsigned long   pr_tstate;
        unsigned int    pr_filler[8];
    } pr_un;
} elf_xregset_t;

/*
 * This is used to ensure we don't load something for the wrong architecture.
 */
#define elf_check_arch(x)       ((x)->e_machine == ELF_ARCH)
#define compat_elf_check_arch(x)    ((x)->e_machine == EM_SPARC || \
                     (x)->e_machine == EM_SPARC32PLUS)
#define compat_start_thread     start_thread32

#define ELF_EXEC_PAGESIZE   PAGE_SIZE

/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
   use of this is to invoke "./ld.so someprog" to test out a new version of
   the loader.  We need to make sure that it is out of the way of the program
   that it will "exec", and that there is sufficient room for the brk.  */

#define ELF_ET_DYN_BASE     0x0000010000000000UL
#define COMPAT_ELF_ET_DYN_BASE  0x0000000070000000UL

extern unsigned long sparc64_elf_hwcap;
#define ELF_HWCAP   sparc64_elf_hwcap

/* This yields a string that ld.so will use to load implementation
   specific libraries for optimization.  This is more specific in
   intent than poking at uname or /proc/cpuinfo.  */

#define ELF_PLATFORM    (NULL)

#define SET_PERSONALITY(ex)             \
do {    if ((ex).e_ident[EI_CLASS] == ELFCLASS32)   \
        set_thread_flag(TIF_32BIT);     \
    else                        \
        clear_thread_flag(TIF_32BIT);       \
    /* flush_thread will update pgd cache */    \
    if (personality(current->personality) != PER_LINUX32)   \
        set_personality(PER_LINUX |     \
            (current->personality & (~PER_MASK)));  \
} while (0)

#endif /* !(__ASM_SPARC64_ELF_H) */