linux-user/sparc/target_syscall.h

   1 #ifndef SPARC_TARGET_SYSCALL_H
   2 #define SPARC_TARGET_SYSCALL_H
   3
   4 struct target_pt_regs {
   5         abi_ulong psr;
   6         abi_ulong pc;
   7         abi_ulong npc;
   8         abi_ulong y;
   9         abi_ulong u_regs[16];
  10 };
  11
  12 #define UNAME_MACHINE "sun4"
  13 #define UNAME_MINIMUM_RELEASE "2.6.32"
  14
  15 /* SPARC kernels don't define this in their Kconfig, but they have the
  16  * same ABI as if they did, implemented by sparc-specific code which fishes
  17  * directly in the u_regs() struct for half the parameters in sparc_do_fork()
  18  * and copy_thread().
  19  */
  20 #define TARGET_CLONE_BACKWARDS
  21 #define TARGET_MINSIGSTKSZ      4096
  22 #define TARGET_MLOCKALL_MCL_CURRENT 0x2000
  23 #define TARGET_MLOCKALL_MCL_FUTURE  0x4000
  24
  25 /* For SPARC SHMLBA is determined at runtime in the kernel, and
  26  * libc has to runtime-detect it using the hwcaps (see glibc
  27  * sysdeps/unix/sysv/linux/sparc/getshmlba; we follow the same
  28  * logic here, though we know we're not the sparc v9 64-bit case).
  29  */
  30 #define TARGET_FORCE_SHMLBA
  31
  32 static inline abi_ulong target_shmlba(CPUSPARCState *env)
  33 {
  34     if (!(env->def->features & CPU_FEATURE_FLUSH)) {
  35         return 64 * 1024;
  36     } else {
  37         return 256 * 1024;
  38     }
  39 }
  40
  41 #endif /* SPARC_TARGET_SYSCALL_H */