linux-user/cris/target_cpu.h

   1 /*
   2  * CRIS specific CPU ABI and functions for linux-user
   3  *
   4  * Copyright (c) 2007 AXIS Communications AB
   5  * Written by Edgar E. Iglesias
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20 #ifndef CRIS_TARGET_CPU_H
  21 #define CRIS_TARGET_CPU_H
  22
  23 static inline void cpu_clone_regs_child(CPUCRISState *env, target_ulong newsp,
  24                                         unsigned flags)
  25 {
  26     if (newsp) {
  27         env->regs[14] = newsp;
  28     }
  29     env->regs[10] = 0;
  30 }
  31
  32 static inline void cpu_clone_regs_parent(CPUCRISState *env, unsigned flags)
  33 {
  34 }
  35
  36 static inline void cpu_set_tls(CPUCRISState *env, target_ulong newtls)
  37 {
  38     env->pregs[PR_PID] = (env->pregs[PR_PID] & 0xff) | newtls;
  39 }
  40
  41 static inline abi_ulong get_sp_from_cpustate(CPUCRISState *state)
  42 {
  43     return state->regs[14];
  44 }
  45 #endif