linux-user/s390x/target_cpu.h

   1 /*
   2  * S/390 specific CPU ABI and functions for linux-user
   3  *
   4  * Copyright (c) 2009 Ulrich Hecht
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #ifndef S390X_TARGET_CPU_H
  20 #define S390X_TARGET_CPU_H
  21
  22 static inline void cpu_clone_regs(CPUS390XState *env, target_ulong newsp)
  23 {
  24     if (newsp) {
  25         env->regs[15] = newsp;
  26     }
  27     env->regs[2] = 0;
  28 }
  29
  30 static inline void cpu_set_tls(CPUS390XState *env, target_ulong newtls)
  31 {
  32     env->aregs[0] = newtls >> 32;
  33     env->aregs[1] = newtls & 0xffffffffULL;
  34 }
  35
  36 static inline abi_ulong get_sp_from_cpustate(CPUS390XState *state)
  37 {
  38    return state->regs[15];
  39 }
  40 #endif