LXR qemu/linux-user/hppa/target

   1/*
   2 * HPPA specific CPU ABI and functions for linux-user
   3 *
   4 *  Copyright (c) 2016  Richard Henderson
   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#ifndef HPPA_TARGET_CPU_H
  20#define HPPA_TARGET_CPU_H
  21
  22static inline void cpu_clone_regs_child(CPUHPPAState *env, target_ulong newsp,
  23                                        unsigned flags)
  24{
  25    if (newsp) {
  26        env->gr[30] = newsp;
  27    }
  28    /* Indicate child in return value.  */
  29    env->gr[28] = 0;
  30    /* Return from the syscall.  */
  31    env->iaoq_f = env->gr[31];
  32    env->iaoq_b = env->gr[31] + 4;
  33}
  34
  35static inline void cpu_clone_regs_parent(CPUHPPAState *env, unsigned flags)
  36{
  37}
  38
  39static inline void cpu_set_tls(CPUHPPAState *env, target_ulong newtls)
  40{
  41    env->cr[27] = newtls;
  42}
  43
  44static inline abi_ulong get_sp_from_cpustate(CPUHPPAState *state)
  45{
  46    return state->gr[30];
  47}
  48#endif
  49