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 library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library 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  * Lesser General Public License for more details.
  15  *
  16  * Contributions after 2012-10-29 are licensed under the terms of the
  17  * GNU GPL, version 2 or (at your option) any later version.
  18  *
  19  * You should have received a copy of the GNU (Lesser) General Public
  20  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  21  */
  22 #ifndef S390X_TARGET_CPU_H
  23 #define S390X_TARGET_CPU_H
  24
  25 static inline void cpu_clone_regs(CPUS390XState *env, target_ulong newsp)
  26 {
  27     if (newsp) {
  28         env->regs[15] = newsp;
  29     }
  30     env->regs[2] = 0;
  31 }
  32
  33 static inline void cpu_set_tls(CPUS390XState *env, target_ulong newtls)
  34 {
  35     env->aregs[0] = newtls >> 32;
  36     env->aregs[1] = newtls & 0xffffffffULL;
  37 }
  38
  39 static inline abi_ulong get_sp_from_cpustate(CPUS390XState *state)
  40 {
  41    return state->regs[15];
  42 }
  43 #endif