linux-user/xtensa/target_cpu.h

   1 /*
   2  * Xtensa-specific CPU ABI and functions for linux-user
   3  */
   4 #ifndef XTENSA_TARGET_CPU_H
   5 #define XTENSA_TARGET_CPU_H
   6
   7 static inline void cpu_clone_regs_child(CPUXtensaState *env,
   8                                         target_ulong newsp,
   9                                         unsigned flags)
  10 {
  11     if (newsp) {
  12         env->regs[1] = newsp;
  13         env->sregs[WINDOW_BASE] = 0;
  14         env->sregs[WINDOW_START] = 0x1;
  15     }
  16     env->regs[2] = 0;
  17 }
  18
  19 static inline void cpu_clone_regs_parent(CPUXtensaState *env, unsigned flags)
  20 {
  21 }
  22
  23 static inline void cpu_set_tls(CPUXtensaState *env, target_ulong newtls)
  24 {
  25     env->uregs[THREADPTR] = newtls;
  26 }
  27
  28 static inline abi_ulong get_sp_from_cpustate(CPUXtensaState *state)
  29 {
  30     return state->regs[1];
  31 }
  32 #endif