qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
Log | Files | Refs | Submodules | LICENSE

target_cpu.h (1494B)

      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 2.1 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 NIOS2_TARGET_CPU_H
     21 #define NIOS2_TARGET_CPU_H
     22 
     23 static inline void cpu_clone_regs_child(CPUNios2State *env, target_ulong newsp,
     24                                         unsigned flags)
     25 {
     26     if (newsp) {
     27         env->regs[R_SP] = newsp;
     28     }
     29     env->regs[R_RET0] = 0;
     30     env->regs[7] = 0;
     31 }
     32 
     33 static inline void cpu_clone_regs_parent(CPUNios2State *env, unsigned flags)
     34 {
     35 }
     36 
     37 static inline void cpu_set_tls(CPUNios2State *env, target_ulong newtls)
     38 {
     39     /*
     40      * Linux kernel 3.10 does not pay any attention to CLONE_SETTLS
     41      * in copy_thread(), so QEMU need not do so either.
     42      */
     43 }
     44 
     45 static inline abi_ulong get_sp_from_cpustate(CPUNios2State *state)
     46 {
     47     return state->regs[R_SP];
     48 }
     49 #endif