linux-user/openrisc/target_cpu.h

   1 /*
   2  * OpenRISC specific CPU ABI and functions for linux-user
   3  *
   4  * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
   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 2.1 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  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef OPENRISC_TARGET_CPU_H
  21 #define OPENRISC_TARGET_CPU_H
  22
  23 static inline void cpu_clone_regs_child(CPUOpenRISCState *env,
  24                                         target_ulong newsp,
  25                                         unsigned flags)
  26 {
  27     if (newsp) {
  28         cpu_set_gpr(env, 1, newsp);
  29     }
  30     cpu_set_gpr(env, 11, 0);
  31 }
  32
  33 static inline void cpu_clone_regs_parent(CPUOpenRISCState *env, unsigned flags)
  34 {
  35 }
  36
  37 static inline void cpu_set_tls(CPUOpenRISCState *env, target_ulong newtls)
  38 {
  39     cpu_set_gpr(env, 10, newtls);
  40 }
  41
  42 static inline abi_ulong get_sp_from_cpustate(CPUOpenRISCState *state)
  43 {
  44     return cpu_get_gpr(state, 1);
  45 }
  46 #endif