linux-user/sparc/target_syscall.h

   1 #ifndef SPARC_TARGET_SYSCALL_H
   2 #define SPARC_TARGET_SYSCALL_H
   3
   4 #include "target_errno.h"
   5
   6 struct target_pt_regs {
   7         abi_ulong psr;
   8         abi_ulong pc;
   9         abi_ulong npc;
  10         abi_ulong y;
  11         abi_ulong u_regs[16];
  12 };
  13
  14 #define UNAME_MACHINE "sparc"
  15 #define UNAME_MINIMUM_RELEASE "2.6.32"
  16
  17 /* SPARC kernels don't define this in their Kconfig, but they have the
  18  * same ABI as if they did, implemented by sparc-specific code which fishes
  19  * directly in the u_regs() struct for half the parameters in sparc_do_fork()
  20  * and copy_thread().
  21  */
  22 #define TARGET_CLONE_BACKWARDS
  23 #define TARGET_MINSIGSTKSZ      4096
  24 #define TARGET_MCL_CURRENT 0x2000
  25 #define TARGET_MCL_FUTURE  0x4000
  26 #define TARGET_MCL_ONFAULT 0x8000
  27
  28 /* For SPARC SHMLBA is determined at runtime in the kernel, and
  29  * libc has to runtime-detect it using the hwcaps (see glibc
  30  * sysdeps/unix/sysv/linux/sparc/getshmlba; we follow the same
  31  * logic here, though we know we're not the sparc v9 64-bit case).
  32  */
  33 #define TARGET_FORCE_SHMLBA
  34
  35 static inline abi_ulong target_shmlba(CPUSPARCState *env)
  36 {
  37     if (!(env->def.features & CPU_FEATURE_FLUSH)) {
  38         return 64 * 1024;
  39     } else {
  40         return 256 * 1024;
  41     }
  42 }
  43
  44 #endif /* SPARC_TARGET_SYSCALL_H */