LXR qemu/linux-user/sparc/target

   1#ifndef SPARC_TARGET_SYSCALL_H
   2#define SPARC_TARGET_SYSCALL_H
   3
   4#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
   5struct target_pt_regs {
   6    abi_ulong u_regs[16];
   7    abi_ulong tstate;
   8    abi_ulong pc;
   9    abi_ulong npc;
  10    uint32_t y;
  11    uint32_t magic;
  12};
  13#else
  14struct target_pt_regs {
  15    abi_ulong psr;
  16    abi_ulong pc;
  17    abi_ulong npc;
  18    abi_ulong y;
  19    abi_ulong u_regs[16];
  20};
  21#endif
  22
  23#ifdef TARGET_SPARC64
  24# define UNAME_MACHINE "sparc64"
  25#else
  26# define UNAME_MACHINE "sparc"
  27#endif
  28#define UNAME_MINIMUM_RELEASE "2.6.32"
  29
  30/*
  31 * SPARC kernels don't define this in their Kconfig, but they have the
  32 * same ABI as if they did, implemented by sparc-specific code which fishes
  33 * directly in the u_regs() struct for half the parameters in sparc_do_fork()
  34 * and copy_thread().
  35 */
  36#define TARGET_CLONE_BACKWARDS
  37#define TARGET_MINSIGSTKSZ      4096
  38#define TARGET_MCL_CURRENT 0x2000
  39#define TARGET_MCL_FUTURE  0x4000
  40#define TARGET_MCL_ONFAULT 0x8000
  41
  42/*
  43 * For SPARC SHMLBA is determined at runtime in the kernel, and
  44 * libc has to runtime-detect it using the hwcaps.
  45 * See glibc sysdeps/unix/sysv/linux/sparc/getshmlba.
  46 */
  47#define TARGET_FORCE_SHMLBA
  48
  49static inline abi_ulong target_shmlba(CPUSPARCState *env)
  50{
  51#ifdef TARGET_SPARC64
  52    return MAX(TARGET_PAGE_SIZE, 16 * 1024);
  53#else
  54    if (!(env->def.features & CPU_FEATURE_FLUSH)) {
  55        return 64 * 1024;
  56    } else {
  57        return 256 * 1024;
  58    }
  59#endif
  60}
  61
  62#endif /* SPARC_TARGET_SYSCALL_H */
  63