LXR qemu/linux-user/nios2/target

   1/*
   2 * Nios2 specific CPU ABI and functions for linux-user
   3 *
   4 * Copyright (c) 2016 Marek Vasut <marex@denx.de>
   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 * 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 NIOS2_TARGET_CPU_H
  21#define NIOS2_TARGET_CPU_H
  22
  23static inline void cpu_clone_regs(CPUNios2State *env, target_ulong newsp)
  24{
  25    if (newsp) {
  26        env->regs[R_SP] = newsp;
  27    }
  28    env->regs[R_RET0] = 0;
  29}
  30
  31static inline void cpu_set_tls(CPUNios2State *env, target_ulong newtls)
  32{
  33    /*
  34     * Linux kernel 3.10 does not pay any attention to CLONE_SETTLS
  35     * in copy_thread(), so QEMU need not do so either.
  36     */
  37}
  38
  39static inline abi_ulong get_sp_from_cpustate(CPUNios2State *state)
  40{
  41    return state->regs[R_SP];
  42}
  43#endif
  44