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Re: [qemu-s390x] [PATCH for 2.13 07/19] linux-user: move mips/mips64 cpu


From: Philippe Mathieu-Daudé
Subject: Re: [qemu-s390x] [PATCH for 2.13 07/19] linux-user: move mips/mips64 cpu loop to mips directory
Date: Tue, 27 Mar 2018 19:21:22 -0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0

On 03/26/2018 04:15 PM, Laurent Vivier wrote:
> No code change, only move code from main.c to
> mips/cpu_loop.c.
> 
> Include mips/cpu_loop.c in mips64/cpu_loop.c
> to avoid to duplicate code.
> 
> Signed-off-by: Laurent Vivier <address@hidden>

Reviewed-by: Philippe Mathieu-Daudé <address@hidden>

> ---
>  linux-user/main.c            | 725 
> -------------------------------------------
>  linux-user/mips/cpu_loop.c   | 723 ++++++++++++++++++++++++++++++++++++++++++
>  linux-user/mips64/cpu_loop.c |   8 +-
>  3 files changed, 724 insertions(+), 732 deletions(-)
> 
> diff --git a/linux-user/main.c b/linux-user/main.c
> index b5d0513b44..490733a3fb 100644
> --- a/linux-user/main.c
> +++ b/linux-user/main.c
> @@ -149,705 +149,6 @@ void fork_end(int child)
>      }
>  }
>  
> -#ifdef TARGET_MIPS
> -
> -# ifdef TARGET_ABI_MIPSO32
> -#  define MIPS_SYS(name, args) args,
> -static const uint8_t mips_syscall_args[] = {
> -     MIPS_SYS(sys_syscall    , 8)    /* 4000 */
> -     MIPS_SYS(sys_exit       , 1)
> -     MIPS_SYS(sys_fork       , 0)
> -     MIPS_SYS(sys_read       , 3)
> -     MIPS_SYS(sys_write      , 3)
> -     MIPS_SYS(sys_open       , 3)    /* 4005 */
> -     MIPS_SYS(sys_close      , 1)
> -     MIPS_SYS(sys_waitpid    , 3)
> -     MIPS_SYS(sys_creat      , 2)
> -     MIPS_SYS(sys_link       , 2)
> -     MIPS_SYS(sys_unlink     , 1)    /* 4010 */
> -     MIPS_SYS(sys_execve     , 0)
> -     MIPS_SYS(sys_chdir      , 1)
> -     MIPS_SYS(sys_time       , 1)
> -     MIPS_SYS(sys_mknod      , 3)
> -     MIPS_SYS(sys_chmod      , 2)    /* 4015 */
> -     MIPS_SYS(sys_lchown     , 3)
> -     MIPS_SYS(sys_ni_syscall , 0)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_stat */
> -     MIPS_SYS(sys_lseek      , 3)
> -     MIPS_SYS(sys_getpid     , 0)    /* 4020 */
> -     MIPS_SYS(sys_mount      , 5)
> -     MIPS_SYS(sys_umount     , 1)
> -     MIPS_SYS(sys_setuid     , 1)
> -     MIPS_SYS(sys_getuid     , 0)
> -     MIPS_SYS(sys_stime      , 1)    /* 4025 */
> -     MIPS_SYS(sys_ptrace     , 4)
> -     MIPS_SYS(sys_alarm      , 1)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_fstat */
> -     MIPS_SYS(sys_pause      , 0)
> -     MIPS_SYS(sys_utime      , 2)    /* 4030 */
> -     MIPS_SYS(sys_ni_syscall , 0)
> -     MIPS_SYS(sys_ni_syscall , 0)
> -     MIPS_SYS(sys_access     , 2)
> -     MIPS_SYS(sys_nice       , 1)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* 4035 */
> -     MIPS_SYS(sys_sync       , 0)
> -     MIPS_SYS(sys_kill       , 2)
> -     MIPS_SYS(sys_rename     , 2)
> -     MIPS_SYS(sys_mkdir      , 2)
> -     MIPS_SYS(sys_rmdir      , 1)    /* 4040 */
> -     MIPS_SYS(sys_dup                , 1)
> -     MIPS_SYS(sys_pipe       , 0)
> -     MIPS_SYS(sys_times      , 1)
> -     MIPS_SYS(sys_ni_syscall , 0)
> -     MIPS_SYS(sys_brk                , 1)    /* 4045 */
> -     MIPS_SYS(sys_setgid     , 1)
> -     MIPS_SYS(sys_getgid     , 0)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* was signal(2) */
> -     MIPS_SYS(sys_geteuid    , 0)
> -     MIPS_SYS(sys_getegid    , 0)    /* 4050 */
> -     MIPS_SYS(sys_acct       , 0)
> -     MIPS_SYS(sys_umount2    , 2)
> -     MIPS_SYS(sys_ni_syscall , 0)
> -     MIPS_SYS(sys_ioctl      , 3)
> -     MIPS_SYS(sys_fcntl      , 3)    /* 4055 */
> -     MIPS_SYS(sys_ni_syscall , 2)
> -     MIPS_SYS(sys_setpgid    , 2)
> -     MIPS_SYS(sys_ni_syscall , 0)
> -     MIPS_SYS(sys_olduname   , 1)
> -     MIPS_SYS(sys_umask      , 1)    /* 4060 */
> -     MIPS_SYS(sys_chroot     , 1)
> -     MIPS_SYS(sys_ustat      , 2)
> -     MIPS_SYS(sys_dup2       , 2)
> -     MIPS_SYS(sys_getppid    , 0)
> -     MIPS_SYS(sys_getpgrp    , 0)    /* 4065 */
> -     MIPS_SYS(sys_setsid     , 0)
> -     MIPS_SYS(sys_sigaction  , 3)
> -     MIPS_SYS(sys_sgetmask   , 0)
> -     MIPS_SYS(sys_ssetmask   , 1)
> -     MIPS_SYS(sys_setreuid   , 2)    /* 4070 */
> -     MIPS_SYS(sys_setregid   , 2)
> -     MIPS_SYS(sys_sigsuspend , 0)
> -     MIPS_SYS(sys_sigpending , 1)
> -     MIPS_SYS(sys_sethostname        , 2)
> -     MIPS_SYS(sys_setrlimit  , 2)    /* 4075 */
> -     MIPS_SYS(sys_getrlimit  , 2)
> -     MIPS_SYS(sys_getrusage  , 2)
> -     MIPS_SYS(sys_gettimeofday, 2)
> -     MIPS_SYS(sys_settimeofday, 2)
> -     MIPS_SYS(sys_getgroups  , 2)    /* 4080 */
> -     MIPS_SYS(sys_setgroups  , 2)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* old_select */
> -     MIPS_SYS(sys_symlink    , 2)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_lstat */
> -     MIPS_SYS(sys_readlink   , 3)    /* 4085 */
> -     MIPS_SYS(sys_uselib     , 1)
> -     MIPS_SYS(sys_swapon     , 2)
> -     MIPS_SYS(sys_reboot     , 3)
> -     MIPS_SYS(old_readdir    , 3)
> -     MIPS_SYS(old_mmap       , 6)    /* 4090 */
> -     MIPS_SYS(sys_munmap     , 2)
> -     MIPS_SYS(sys_truncate   , 2)
> -     MIPS_SYS(sys_ftruncate  , 2)
> -     MIPS_SYS(sys_fchmod     , 2)
> -     MIPS_SYS(sys_fchown     , 3)    /* 4095 */
> -     MIPS_SYS(sys_getpriority        , 2)
> -     MIPS_SYS(sys_setpriority        , 3)
> -     MIPS_SYS(sys_ni_syscall , 0)
> -     MIPS_SYS(sys_statfs     , 2)
> -     MIPS_SYS(sys_fstatfs    , 2)    /* 4100 */
> -     MIPS_SYS(sys_ni_syscall , 0)    /* was ioperm(2) */
> -     MIPS_SYS(sys_socketcall , 2)
> -     MIPS_SYS(sys_syslog     , 3)
> -     MIPS_SYS(sys_setitimer  , 3)
> -     MIPS_SYS(sys_getitimer  , 2)    /* 4105 */
> -     MIPS_SYS(sys_newstat    , 2)
> -     MIPS_SYS(sys_newlstat   , 2)
> -     MIPS_SYS(sys_newfstat   , 2)
> -     MIPS_SYS(sys_uname      , 1)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* 4110 was iopl(2) */
> -     MIPS_SYS(sys_vhangup    , 0)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_idle() */
> -     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_vm86 */
> -     MIPS_SYS(sys_wait4      , 4)
> -     MIPS_SYS(sys_swapoff    , 1)    /* 4115 */
> -     MIPS_SYS(sys_sysinfo    , 1)
> -     MIPS_SYS(sys_ipc                , 6)
> -     MIPS_SYS(sys_fsync      , 1)
> -     MIPS_SYS(sys_sigreturn  , 0)
> -     MIPS_SYS(sys_clone      , 6)    /* 4120 */
> -     MIPS_SYS(sys_setdomainname, 2)
> -     MIPS_SYS(sys_newuname   , 1)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* sys_modify_ldt */
> -     MIPS_SYS(sys_adjtimex   , 1)
> -     MIPS_SYS(sys_mprotect   , 3)    /* 4125 */
> -     MIPS_SYS(sys_sigprocmask        , 3)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* was create_module */
> -     MIPS_SYS(sys_init_module        , 5)
> -     MIPS_SYS(sys_delete_module, 1)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* 4130 was get_kernel_syms */
> -     MIPS_SYS(sys_quotactl   , 0)
> -     MIPS_SYS(sys_getpgid    , 1)
> -     MIPS_SYS(sys_fchdir     , 1)
> -     MIPS_SYS(sys_bdflush    , 2)
> -     MIPS_SYS(sys_sysfs      , 3)    /* 4135 */
> -     MIPS_SYS(sys_personality        , 1)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* for afs_syscall */
> -     MIPS_SYS(sys_setfsuid   , 1)
> -     MIPS_SYS(sys_setfsgid   , 1)
> -     MIPS_SYS(sys_llseek     , 5)    /* 4140 */
> -     MIPS_SYS(sys_getdents   , 3)
> -     MIPS_SYS(sys_select     , 5)
> -     MIPS_SYS(sys_flock      , 2)
> -     MIPS_SYS(sys_msync      , 3)
> -     MIPS_SYS(sys_readv      , 3)    /* 4145 */
> -     MIPS_SYS(sys_writev     , 3)
> -     MIPS_SYS(sys_cacheflush , 3)
> -     MIPS_SYS(sys_cachectl   , 3)
> -     MIPS_SYS(sys_sysmips    , 4)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* 4150 */
> -     MIPS_SYS(sys_getsid     , 1)
> -     MIPS_SYS(sys_fdatasync  , 0)
> -     MIPS_SYS(sys_sysctl     , 1)
> -     MIPS_SYS(sys_mlock      , 2)
> -     MIPS_SYS(sys_munlock    , 2)    /* 4155 */
> -     MIPS_SYS(sys_mlockall   , 1)
> -     MIPS_SYS(sys_munlockall , 0)
> -     MIPS_SYS(sys_sched_setparam, 2)
> -     MIPS_SYS(sys_sched_getparam, 2)
> -     MIPS_SYS(sys_sched_setscheduler, 3)     /* 4160 */
> -     MIPS_SYS(sys_sched_getscheduler, 1)
> -     MIPS_SYS(sys_sched_yield        , 0)
> -     MIPS_SYS(sys_sched_get_priority_max, 1)
> -     MIPS_SYS(sys_sched_get_priority_min, 1)
> -     MIPS_SYS(sys_sched_rr_get_interval, 2)  /* 4165 */
> -     MIPS_SYS(sys_nanosleep, 2)
> -     MIPS_SYS(sys_mremap     , 5)
> -     MIPS_SYS(sys_accept     , 3)
> -     MIPS_SYS(sys_bind       , 3)
> -     MIPS_SYS(sys_connect    , 3)    /* 4170 */
> -     MIPS_SYS(sys_getpeername        , 3)
> -     MIPS_SYS(sys_getsockname        , 3)
> -     MIPS_SYS(sys_getsockopt , 5)
> -     MIPS_SYS(sys_listen     , 2)
> -     MIPS_SYS(sys_recv       , 4)    /* 4175 */
> -     MIPS_SYS(sys_recvfrom   , 6)
> -     MIPS_SYS(sys_recvmsg    , 3)
> -     MIPS_SYS(sys_send       , 4)
> -     MIPS_SYS(sys_sendmsg    , 3)
> -     MIPS_SYS(sys_sendto     , 6)    /* 4180 */
> -     MIPS_SYS(sys_setsockopt , 5)
> -     MIPS_SYS(sys_shutdown   , 2)
> -     MIPS_SYS(sys_socket     , 3)
> -     MIPS_SYS(sys_socketpair , 4)
> -     MIPS_SYS(sys_setresuid  , 3)    /* 4185 */
> -     MIPS_SYS(sys_getresuid  , 3)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_query_module */
> -     MIPS_SYS(sys_poll       , 3)
> -     MIPS_SYS(sys_nfsservctl , 3)
> -     MIPS_SYS(sys_setresgid  , 3)    /* 4190 */
> -     MIPS_SYS(sys_getresgid  , 3)
> -     MIPS_SYS(sys_prctl      , 5)
> -     MIPS_SYS(sys_rt_sigreturn, 0)
> -     MIPS_SYS(sys_rt_sigaction, 4)
> -     MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
> -     MIPS_SYS(sys_rt_sigpending, 2)
> -     MIPS_SYS(sys_rt_sigtimedwait, 4)
> -     MIPS_SYS(sys_rt_sigqueueinfo, 3)
> -     MIPS_SYS(sys_rt_sigsuspend, 0)
> -     MIPS_SYS(sys_pread64    , 6)    /* 4200 */
> -     MIPS_SYS(sys_pwrite64   , 6)
> -     MIPS_SYS(sys_chown      , 3)
> -     MIPS_SYS(sys_getcwd     , 2)
> -     MIPS_SYS(sys_capget     , 2)
> -     MIPS_SYS(sys_capset     , 2)    /* 4205 */
> -     MIPS_SYS(sys_sigaltstack        , 2)
> -     MIPS_SYS(sys_sendfile   , 4)
> -     MIPS_SYS(sys_ni_syscall , 0)
> -     MIPS_SYS(sys_ni_syscall , 0)
> -     MIPS_SYS(sys_mmap2      , 6)    /* 4210 */
> -     MIPS_SYS(sys_truncate64 , 4)
> -     MIPS_SYS(sys_ftruncate64        , 4)
> -     MIPS_SYS(sys_stat64     , 2)
> -     MIPS_SYS(sys_lstat64    , 2)
> -     MIPS_SYS(sys_fstat64    , 2)    /* 4215 */
> -     MIPS_SYS(sys_pivot_root , 2)
> -     MIPS_SYS(sys_mincore    , 3)
> -     MIPS_SYS(sys_madvise    , 3)
> -     MIPS_SYS(sys_getdents64 , 3)
> -     MIPS_SYS(sys_fcntl64    , 3)    /* 4220 */
> -     MIPS_SYS(sys_ni_syscall , 0)
> -     MIPS_SYS(sys_gettid     , 0)
> -     MIPS_SYS(sys_readahead  , 5)
> -     MIPS_SYS(sys_setxattr   , 5)
> -     MIPS_SYS(sys_lsetxattr  , 5)    /* 4225 */
> -     MIPS_SYS(sys_fsetxattr  , 5)
> -     MIPS_SYS(sys_getxattr   , 4)
> -     MIPS_SYS(sys_lgetxattr  , 4)
> -     MIPS_SYS(sys_fgetxattr  , 4)
> -     MIPS_SYS(sys_listxattr  , 3)    /* 4230 */
> -     MIPS_SYS(sys_llistxattr , 3)
> -     MIPS_SYS(sys_flistxattr , 3)
> -     MIPS_SYS(sys_removexattr        , 2)
> -     MIPS_SYS(sys_lremovexattr, 2)
> -     MIPS_SYS(sys_fremovexattr, 2)   /* 4235 */
> -     MIPS_SYS(sys_tkill      , 2)
> -     MIPS_SYS(sys_sendfile64 , 5)
> -     MIPS_SYS(sys_futex      , 6)
> -     MIPS_SYS(sys_sched_setaffinity, 3)
> -     MIPS_SYS(sys_sched_getaffinity, 3)      /* 4240 */
> -     MIPS_SYS(sys_io_setup   , 2)
> -     MIPS_SYS(sys_io_destroy , 1)
> -     MIPS_SYS(sys_io_getevents, 5)
> -     MIPS_SYS(sys_io_submit  , 3)
> -     MIPS_SYS(sys_io_cancel  , 3)    /* 4245 */
> -     MIPS_SYS(sys_exit_group , 1)
> -     MIPS_SYS(sys_lookup_dcookie, 3)
> -     MIPS_SYS(sys_epoll_create, 1)
> -     MIPS_SYS(sys_epoll_ctl  , 4)
> -     MIPS_SYS(sys_epoll_wait , 3)    /* 4250 */
> -     MIPS_SYS(sys_remap_file_pages, 5)
> -     MIPS_SYS(sys_set_tid_address, 1)
> -     MIPS_SYS(sys_restart_syscall, 0)
> -     MIPS_SYS(sys_fadvise64_64, 7)
> -     MIPS_SYS(sys_statfs64   , 3)    /* 4255 */
> -     MIPS_SYS(sys_fstatfs64  , 2)
> -     MIPS_SYS(sys_timer_create, 3)
> -     MIPS_SYS(sys_timer_settime, 4)
> -     MIPS_SYS(sys_timer_gettime, 2)
> -     MIPS_SYS(sys_timer_getoverrun, 1)       /* 4260 */
> -     MIPS_SYS(sys_timer_delete, 1)
> -     MIPS_SYS(sys_clock_settime, 2)
> -     MIPS_SYS(sys_clock_gettime, 2)
> -     MIPS_SYS(sys_clock_getres, 2)
> -     MIPS_SYS(sys_clock_nanosleep, 4)        /* 4265 */
> -     MIPS_SYS(sys_tgkill     , 3)
> -     MIPS_SYS(sys_utimes     , 2)
> -     MIPS_SYS(sys_mbind      , 4)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* sys_get_mempolicy */
> -     MIPS_SYS(sys_ni_syscall , 0)    /* 4270 sys_set_mempolicy */
> -     MIPS_SYS(sys_mq_open    , 4)
> -     MIPS_SYS(sys_mq_unlink  , 1)
> -     MIPS_SYS(sys_mq_timedsend, 5)
> -     MIPS_SYS(sys_mq_timedreceive, 5)
> -     MIPS_SYS(sys_mq_notify  , 2)    /* 4275 */
> -     MIPS_SYS(sys_mq_getsetattr, 3)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* sys_vserver */
> -     MIPS_SYS(sys_waitid     , 4)
> -     MIPS_SYS(sys_ni_syscall , 0)    /* available, was setaltroot */
> -     MIPS_SYS(sys_add_key    , 5)
> -     MIPS_SYS(sys_request_key, 4)
> -     MIPS_SYS(sys_keyctl     , 5)
> -     MIPS_SYS(sys_set_thread_area, 1)
> -     MIPS_SYS(sys_inotify_init, 0)
> -     MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
> -     MIPS_SYS(sys_inotify_rm_watch, 2)
> -     MIPS_SYS(sys_migrate_pages, 4)
> -     MIPS_SYS(sys_openat, 4)
> -     MIPS_SYS(sys_mkdirat, 3)
> -     MIPS_SYS(sys_mknodat, 4)        /* 4290 */
> -     MIPS_SYS(sys_fchownat, 5)
> -     MIPS_SYS(sys_futimesat, 3)
> -     MIPS_SYS(sys_fstatat64, 4)
> -     MIPS_SYS(sys_unlinkat, 3)
> -     MIPS_SYS(sys_renameat, 4)       /* 4295 */
> -     MIPS_SYS(sys_linkat, 5)
> -     MIPS_SYS(sys_symlinkat, 3)
> -     MIPS_SYS(sys_readlinkat, 4)
> -     MIPS_SYS(sys_fchmodat, 3)
> -     MIPS_SYS(sys_faccessat, 3)      /* 4300 */
> -     MIPS_SYS(sys_pselect6, 6)
> -     MIPS_SYS(sys_ppoll, 5)
> -     MIPS_SYS(sys_unshare, 1)
> -     MIPS_SYS(sys_splice, 6)
> -     MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
> -     MIPS_SYS(sys_tee, 4)
> -     MIPS_SYS(sys_vmsplice, 4)
> -     MIPS_SYS(sys_move_pages, 6)
> -     MIPS_SYS(sys_set_robust_list, 2)
> -     MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
> -     MIPS_SYS(sys_kexec_load, 4)
> -     MIPS_SYS(sys_getcpu, 3)
> -     MIPS_SYS(sys_epoll_pwait, 6)
> -     MIPS_SYS(sys_ioprio_set, 3)
> -     MIPS_SYS(sys_ioprio_get, 2)
> -        MIPS_SYS(sys_utimensat, 4)
> -        MIPS_SYS(sys_signalfd, 3)
> -        MIPS_SYS(sys_ni_syscall, 0)     /* was timerfd */
> -        MIPS_SYS(sys_eventfd, 1)
> -        MIPS_SYS(sys_fallocate, 6)      /* 4320 */
> -        MIPS_SYS(sys_timerfd_create, 2)
> -        MIPS_SYS(sys_timerfd_gettime, 2)
> -        MIPS_SYS(sys_timerfd_settime, 4)
> -        MIPS_SYS(sys_signalfd4, 4)
> -        MIPS_SYS(sys_eventfd2, 2)       /* 4325 */
> -        MIPS_SYS(sys_epoll_create1, 1)
> -        MIPS_SYS(sys_dup3, 3)
> -        MIPS_SYS(sys_pipe2, 2)
> -        MIPS_SYS(sys_inotify_init1, 1)
> -        MIPS_SYS(sys_preadv, 5)         /* 4330 */
> -        MIPS_SYS(sys_pwritev, 5)
> -        MIPS_SYS(sys_rt_tgsigqueueinfo, 4)
> -        MIPS_SYS(sys_perf_event_open, 5)
> -        MIPS_SYS(sys_accept4, 4)
> -        MIPS_SYS(sys_recvmmsg, 5)       /* 4335 */
> -        MIPS_SYS(sys_fanotify_init, 2)
> -        MIPS_SYS(sys_fanotify_mark, 6)
> -        MIPS_SYS(sys_prlimit64, 4)
> -        MIPS_SYS(sys_name_to_handle_at, 5)
> -        MIPS_SYS(sys_open_by_handle_at, 3) /* 4340 */
> -        MIPS_SYS(sys_clock_adjtime, 2)
> -        MIPS_SYS(sys_syncfs, 1)
> -        MIPS_SYS(sys_sendmmsg, 4)
> -        MIPS_SYS(sys_setns, 2)
> -        MIPS_SYS(sys_process_vm_readv, 6) /* 345 */
> -        MIPS_SYS(sys_process_vm_writev, 6)
> -        MIPS_SYS(sys_kcmp, 5)
> -        MIPS_SYS(sys_finit_module, 3)
> -        MIPS_SYS(sys_sched_setattr, 2)
> -        MIPS_SYS(sys_sched_getattr, 3)  /* 350 */
> -        MIPS_SYS(sys_renameat2, 5)
> -        MIPS_SYS(sys_seccomp, 3)
> -        MIPS_SYS(sys_getrandom, 3)
> -        MIPS_SYS(sys_memfd_create, 2)
> -        MIPS_SYS(sys_bpf, 3)            /* 355 */
> -        MIPS_SYS(sys_execveat, 5)
> -        MIPS_SYS(sys_userfaultfd, 1)
> -        MIPS_SYS(sys_membarrier, 2)
> -        MIPS_SYS(sys_mlock2, 3)
> -        MIPS_SYS(sys_copy_file_range, 6) /* 360 */
> -        MIPS_SYS(sys_preadv2, 6)
> -        MIPS_SYS(sys_pwritev2, 6)
> -};
> -#  undef MIPS_SYS
> -# endif /* O32 */
> -
> -static int do_store_exclusive(CPUMIPSState *env)
> -{
> -    target_ulong addr;
> -    target_ulong page_addr;
> -    target_ulong val;
> -    int flags;
> -    int segv = 0;
> -    int reg;
> -    int d;
> -
> -    addr = env->lladdr;
> -    page_addr = addr & TARGET_PAGE_MASK;
> -    start_exclusive();
> -    mmap_lock();
> -    flags = page_get_flags(page_addr);
> -    if ((flags & PAGE_READ) == 0) {
> -        segv = 1;
> -    } else {
> -        reg = env->llreg & 0x1f;
> -        d = (env->llreg & 0x20) != 0;
> -        if (d) {
> -            segv = get_user_s64(val, addr);
> -        } else {
> -            segv = get_user_s32(val, addr);
> -        }
> -        if (!segv) {
> -            if (val != env->llval) {
> -                env->active_tc.gpr[reg] = 0;
> -            } else {
> -                if (d) {
> -                    segv = put_user_u64(env->llnewval, addr);
> -                } else {
> -                    segv = put_user_u32(env->llnewval, addr);
> -                }
> -                if (!segv) {
> -                    env->active_tc.gpr[reg] = 1;
> -                }
> -            }
> -        }
> -    }
> -    env->lladdr = -1;
> -    if (!segv) {
> -        env->active_tc.PC += 4;
> -    }
> -    mmap_unlock();
> -    end_exclusive();
> -    return segv;
> -}
> -
> -/* Break codes */
> -enum {
> -    BRK_OVERFLOW = 6,
> -    BRK_DIVZERO = 7
> -};
> -
> -static int do_break(CPUMIPSState *env, target_siginfo_t *info,
> -                    unsigned int code)
> -{
> -    int ret = -1;
> -
> -    switch (code) {
> -    case BRK_OVERFLOW:
> -    case BRK_DIVZERO:
> -        info->si_signo = TARGET_SIGFPE;
> -        info->si_errno = 0;
> -        info->si_code = (code == BRK_OVERFLOW) ? FPE_INTOVF : FPE_INTDIV;
> -        queue_signal(env, info->si_signo, QEMU_SI_FAULT, &*info);
> -        ret = 0;
> -        break;
> -    default:
> -        info->si_signo = TARGET_SIGTRAP;
> -        info->si_errno = 0;
> -        queue_signal(env, info->si_signo, QEMU_SI_FAULT, &*info);
> -        ret = 0;
> -        break;
> -    }
> -
> -    return ret;
> -}
> -
> -void cpu_loop(CPUMIPSState *env)
> -{
> -    CPUState *cs = CPU(mips_env_get_cpu(env));
> -    target_siginfo_t info;
> -    int trapnr;
> -    abi_long ret;
> -# ifdef TARGET_ABI_MIPSO32
> -    unsigned int syscall_num;
> -# endif
> -
> -    for(;;) {
> -        cpu_exec_start(cs);
> -        trapnr = cpu_exec(cs);
> -        cpu_exec_end(cs);
> -        process_queued_cpu_work(cs);
> -
> -        switch(trapnr) {
> -        case EXCP_SYSCALL:
> -            env->active_tc.PC += 4;
> -# ifdef TARGET_ABI_MIPSO32
> -            syscall_num = env->active_tc.gpr[2] - 4000;
> -            if (syscall_num >= sizeof(mips_syscall_args)) {
> -                ret = -TARGET_ENOSYS;
> -            } else {
> -                int nb_args;
> -                abi_ulong sp_reg;
> -                abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
> -
> -                nb_args = mips_syscall_args[syscall_num];
> -                sp_reg = env->active_tc.gpr[29];
> -                switch (nb_args) {
> -                /* these arguments are taken from the stack */
> -                case 8:
> -                    if ((ret = get_user_ual(arg8, sp_reg + 28)) != 0) {
> -                        goto done_syscall;
> -                    }
> -                case 7:
> -                    if ((ret = get_user_ual(arg7, sp_reg + 24)) != 0) {
> -                        goto done_syscall;
> -                    }
> -                case 6:
> -                    if ((ret = get_user_ual(arg6, sp_reg + 20)) != 0) {
> -                        goto done_syscall;
> -                    }
> -                case 5:
> -                    if ((ret = get_user_ual(arg5, sp_reg + 16)) != 0) {
> -                        goto done_syscall;
> -                    }
> -                default:
> -                    break;
> -                }
> -                ret = do_syscall(env, env->active_tc.gpr[2],
> -                                 env->active_tc.gpr[4],
> -                                 env->active_tc.gpr[5],
> -                                 env->active_tc.gpr[6],
> -                                 env->active_tc.gpr[7],
> -                                 arg5, arg6, arg7, arg8);
> -            }
> -done_syscall:
> -# else
> -            ret = do_syscall(env, env->active_tc.gpr[2],
> -                             env->active_tc.gpr[4], env->active_tc.gpr[5],
> -                             env->active_tc.gpr[6], env->active_tc.gpr[7],
> -                             env->active_tc.gpr[8], env->active_tc.gpr[9],
> -                             env->active_tc.gpr[10], env->active_tc.gpr[11]);
> -# endif /* O32 */
> -            if (ret == -TARGET_ERESTARTSYS) {
> -                env->active_tc.PC -= 4;
> -                break;
> -            }
> -            if (ret == -TARGET_QEMU_ESIGRETURN) {
> -                /* Returning from a successful sigreturn syscall.
> -                   Avoid clobbering register state.  */
> -                break;
> -            }
> -            if ((abi_ulong)ret >= (abi_ulong)-1133) {
> -                env->active_tc.gpr[7] = 1; /* error flag */
> -                ret = -ret;
> -            } else {
> -                env->active_tc.gpr[7] = 0; /* error flag */
> -            }
> -            env->active_tc.gpr[2] = ret;
> -            break;
> -        case EXCP_TLBL:
> -        case EXCP_TLBS:
> -        case EXCP_AdEL:
> -        case EXCP_AdES:
> -            info.si_signo = TARGET_SIGSEGV;
> -            info.si_errno = 0;
> -            /* XXX: check env->error_code */
> -            info.si_code = TARGET_SEGV_MAPERR;
> -            info._sifields._sigfault._addr = env->CP0_BadVAddr;
> -            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
> -            break;
> -        case EXCP_CpU:
> -        case EXCP_RI:
> -            info.si_signo = TARGET_SIGILL;
> -            info.si_errno = 0;
> -            info.si_code = 0;
> -            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
> -            break;
> -        case EXCP_INTERRUPT:
> -            /* just indicate that signals should be handled asap */
> -            break;
> -        case EXCP_DEBUG:
> -            {
> -                int sig;
> -
> -                sig = gdb_handlesig(cs, TARGET_SIGTRAP);
> -                if (sig)
> -                  {
> -                    info.si_signo = sig;
> -                    info.si_errno = 0;
> -                    info.si_code = TARGET_TRAP_BRKPT;
> -                    queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
> -                  }
> -            }
> -            break;
> -        case EXCP_SC:
> -            if (do_store_exclusive(env)) {
> -                info.si_signo = TARGET_SIGSEGV;
> -                info.si_errno = 0;
> -                info.si_code = TARGET_SEGV_MAPERR;
> -                info._sifields._sigfault._addr = env->active_tc.PC;
> -                queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
> -            }
> -            break;
> -        case EXCP_DSPDIS:
> -            info.si_signo = TARGET_SIGILL;
> -            info.si_errno = 0;
> -            info.si_code = TARGET_ILL_ILLOPC;
> -            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
> -            break;
> -        /* The code below was inspired by the MIPS Linux kernel trap
> -         * handling code in arch/mips/kernel/traps.c.
> -         */
> -        case EXCP_BREAK:
> -            {
> -                abi_ulong trap_instr;
> -                unsigned int code;
> -
> -                if (env->hflags & MIPS_HFLAG_M16) {
> -                    if (env->insn_flags & ASE_MICROMIPS) {
> -                        /* microMIPS mode */
> -                        ret = get_user_u16(trap_instr, env->active_tc.PC);
> -                        if (ret != 0) {
> -                            goto error;
> -                        }
> -
> -                        if ((trap_instr >> 10) == 0x11) {
> -                            /* 16-bit instruction */
> -                            code = trap_instr & 0xf;
> -                        } else {
> -                            /* 32-bit instruction */
> -                            abi_ulong instr_lo;
> -
> -                            ret = get_user_u16(instr_lo,
> -                                               env->active_tc.PC + 2);
> -                            if (ret != 0) {
> -                                goto error;
> -                            }
> -                            trap_instr = (trap_instr << 16) | instr_lo;
> -                            code = ((trap_instr >> 6) & ((1 << 20) - 1));
> -                            /* Unfortunately, microMIPS also suffers from
> -                               the old assembler bug...  */
> -                            if (code >= (1 << 10)) {
> -                                code >>= 10;
> -                            }
> -                        }
> -                    } else {
> -                        /* MIPS16e mode */
> -                        ret = get_user_u16(trap_instr, env->active_tc.PC);
> -                        if (ret != 0) {
> -                            goto error;
> -                        }
> -                        code = (trap_instr >> 6) & 0x3f;
> -                    }
> -                } else {
> -                    ret = get_user_u32(trap_instr, env->active_tc.PC);
> -                    if (ret != 0) {
> -                        goto error;
> -                    }
> -
> -                    /* As described in the original Linux kernel code, the
> -                     * below checks on 'code' are to work around an old
> -                     * assembly bug.
> -                     */
> -                    code = ((trap_instr >> 6) & ((1 << 20) - 1));
> -                    if (code >= (1 << 10)) {
> -                        code >>= 10;
> -                    }
> -                }
> -
> -                if (do_break(env, &info, code) != 0) {
> -                    goto error;
> -                }
> -            }
> -            break;
> -        case EXCP_TRAP:
> -            {
> -                abi_ulong trap_instr;
> -                unsigned int code = 0;
> -
> -                if (env->hflags & MIPS_HFLAG_M16) {
> -                    /* microMIPS mode */
> -                    abi_ulong instr[2];
> -
> -                    ret = get_user_u16(instr[0], env->active_tc.PC) ||
> -                          get_user_u16(instr[1], env->active_tc.PC + 2);
> -
> -                    trap_instr = (instr[0] << 16) | instr[1];
> -                } else {
> -                    ret = get_user_u32(trap_instr, env->active_tc.PC);
> -                }
> -
> -                if (ret != 0) {
> -                    goto error;
> -                }
> -
> -                /* The immediate versions don't provide a code.  */
> -                if (!(trap_instr & 0xFC000000)) {
> -                    if (env->hflags & MIPS_HFLAG_M16) {
> -                        /* microMIPS mode */
> -                        code = ((trap_instr >> 12) & ((1 << 4) - 1));
> -                    } else {
> -                        code = ((trap_instr >> 6) & ((1 << 10) - 1));
> -                    }
> -                }
> -
> -                if (do_break(env, &info, code) != 0) {
> -                    goto error;
> -                }
> -            }
> -            break;
> -        case EXCP_ATOMIC:
> -            cpu_exec_step_atomic(cs);
> -            break;
> -        default:
> -error:
> -            EXCP_DUMP(env, "qemu: unhandled CPU exception 0x%x - 
> aborting\n", trapnr);
> -            abort();
> -        }
> -        process_pending_signals(env);
> -    }
> -}
> -#endif
> -
>  #ifdef TARGET_NIOS2
>  
>  void cpu_loop(CPUNios2State *env)
> @@ -3241,32 +2542,6 @@ int main(int argc, char **argv, char **envp)
>          env->regs[31] = regs->r31;       
>          env->sregs[SR_PC] = regs->pc;
>      }
> -#elif defined(TARGET_MIPS)
> -    {
> -        int i;
> -
> -        for(i = 0; i < 32; i++) {
> -            env->active_tc.gpr[i] = regs->regs[i];
> -        }
> -        env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
> -        if (regs->cp0_epc & 1) {
> -            env->hflags |= MIPS_HFLAG_M16;
> -        }
> -        if (((info->elf_flags & EF_MIPS_NAN2008) != 0) !=
> -            ((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) != 0)) {
> -            if ((env->active_fpu.fcr31_rw_bitmask &
> -                  (1 << FCR31_NAN2008)) == 0) {
> -                fprintf(stderr, "ELF binary's NaN mode not supported by 
> CPU\n");
> -                exit(1);
> -            }
> -            if ((info->elf_flags & EF_MIPS_NAN2008) != 0) {
> -                env->active_fpu.fcr31 |= (1 << FCR31_NAN2008);
> -            } else {
> -                env->active_fpu.fcr31 &= ~(1 << FCR31_NAN2008);
> -            }
> -            restore_snan_bit_mode(env);
> -        }
> -    }
>  #elif defined(TARGET_NIOS2)
>      {
>          env->regs[0] = 0;
> diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c
> index b7700a5561..51bdb647dd 100644
> --- a/linux-user/mips/cpu_loop.c
> +++ b/linux-user/mips/cpu_loop.c
> @@ -20,7 +20,730 @@
>  #include "qemu/osdep.h"
>  #include "qemu.h"
>  #include "cpu_loop-common.h"
> +#include "elf.h"
> +
> +# ifdef TARGET_ABI_MIPSO32
> +#  define MIPS_SYS(name, args) args,
> +static const uint8_t mips_syscall_args[] = {
> +     MIPS_SYS(sys_syscall    , 8)    /* 4000 */
> +     MIPS_SYS(sys_exit       , 1)
> +     MIPS_SYS(sys_fork       , 0)
> +     MIPS_SYS(sys_read       , 3)
> +     MIPS_SYS(sys_write      , 3)
> +     MIPS_SYS(sys_open       , 3)    /* 4005 */
> +     MIPS_SYS(sys_close      , 1)
> +     MIPS_SYS(sys_waitpid    , 3)
> +     MIPS_SYS(sys_creat      , 2)
> +     MIPS_SYS(sys_link       , 2)
> +     MIPS_SYS(sys_unlink     , 1)    /* 4010 */
> +     MIPS_SYS(sys_execve     , 0)
> +     MIPS_SYS(sys_chdir      , 1)
> +     MIPS_SYS(sys_time       , 1)
> +     MIPS_SYS(sys_mknod      , 3)
> +     MIPS_SYS(sys_chmod      , 2)    /* 4015 */
> +     MIPS_SYS(sys_lchown     , 3)
> +     MIPS_SYS(sys_ni_syscall , 0)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_stat */
> +     MIPS_SYS(sys_lseek      , 3)
> +     MIPS_SYS(sys_getpid     , 0)    /* 4020 */
> +     MIPS_SYS(sys_mount      , 5)
> +     MIPS_SYS(sys_umount     , 1)
> +     MIPS_SYS(sys_setuid     , 1)
> +     MIPS_SYS(sys_getuid     , 0)
> +     MIPS_SYS(sys_stime      , 1)    /* 4025 */
> +     MIPS_SYS(sys_ptrace     , 4)
> +     MIPS_SYS(sys_alarm      , 1)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_fstat */
> +     MIPS_SYS(sys_pause      , 0)
> +     MIPS_SYS(sys_utime      , 2)    /* 4030 */
> +     MIPS_SYS(sys_ni_syscall , 0)
> +     MIPS_SYS(sys_ni_syscall , 0)
> +     MIPS_SYS(sys_access     , 2)
> +     MIPS_SYS(sys_nice       , 1)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* 4035 */
> +     MIPS_SYS(sys_sync       , 0)
> +     MIPS_SYS(sys_kill       , 2)
> +     MIPS_SYS(sys_rename     , 2)
> +     MIPS_SYS(sys_mkdir      , 2)
> +     MIPS_SYS(sys_rmdir      , 1)    /* 4040 */
> +     MIPS_SYS(sys_dup                , 1)
> +     MIPS_SYS(sys_pipe       , 0)
> +     MIPS_SYS(sys_times      , 1)
> +     MIPS_SYS(sys_ni_syscall , 0)
> +     MIPS_SYS(sys_brk                , 1)    /* 4045 */
> +     MIPS_SYS(sys_setgid     , 1)
> +     MIPS_SYS(sys_getgid     , 0)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* was signal(2) */
> +     MIPS_SYS(sys_geteuid    , 0)
> +     MIPS_SYS(sys_getegid    , 0)    /* 4050 */
> +     MIPS_SYS(sys_acct       , 0)
> +     MIPS_SYS(sys_umount2    , 2)
> +     MIPS_SYS(sys_ni_syscall , 0)
> +     MIPS_SYS(sys_ioctl      , 3)
> +     MIPS_SYS(sys_fcntl      , 3)    /* 4055 */
> +     MIPS_SYS(sys_ni_syscall , 2)
> +     MIPS_SYS(sys_setpgid    , 2)
> +     MIPS_SYS(sys_ni_syscall , 0)
> +     MIPS_SYS(sys_olduname   , 1)
> +     MIPS_SYS(sys_umask      , 1)    /* 4060 */
> +     MIPS_SYS(sys_chroot     , 1)
> +     MIPS_SYS(sys_ustat      , 2)
> +     MIPS_SYS(sys_dup2       , 2)
> +     MIPS_SYS(sys_getppid    , 0)
> +     MIPS_SYS(sys_getpgrp    , 0)    /* 4065 */
> +     MIPS_SYS(sys_setsid     , 0)
> +     MIPS_SYS(sys_sigaction  , 3)
> +     MIPS_SYS(sys_sgetmask   , 0)
> +     MIPS_SYS(sys_ssetmask   , 1)
> +     MIPS_SYS(sys_setreuid   , 2)    /* 4070 */
> +     MIPS_SYS(sys_setregid   , 2)
> +     MIPS_SYS(sys_sigsuspend , 0)
> +     MIPS_SYS(sys_sigpending , 1)
> +     MIPS_SYS(sys_sethostname        , 2)
> +     MIPS_SYS(sys_setrlimit  , 2)    /* 4075 */
> +     MIPS_SYS(sys_getrlimit  , 2)
> +     MIPS_SYS(sys_getrusage  , 2)
> +     MIPS_SYS(sys_gettimeofday, 2)
> +     MIPS_SYS(sys_settimeofday, 2)
> +     MIPS_SYS(sys_getgroups  , 2)    /* 4080 */
> +     MIPS_SYS(sys_setgroups  , 2)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* old_select */
> +     MIPS_SYS(sys_symlink    , 2)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_lstat */
> +     MIPS_SYS(sys_readlink   , 3)    /* 4085 */
> +     MIPS_SYS(sys_uselib     , 1)
> +     MIPS_SYS(sys_swapon     , 2)
> +     MIPS_SYS(sys_reboot     , 3)
> +     MIPS_SYS(old_readdir    , 3)
> +     MIPS_SYS(old_mmap       , 6)    /* 4090 */
> +     MIPS_SYS(sys_munmap     , 2)
> +     MIPS_SYS(sys_truncate   , 2)
> +     MIPS_SYS(sys_ftruncate  , 2)
> +     MIPS_SYS(sys_fchmod     , 2)
> +     MIPS_SYS(sys_fchown     , 3)    /* 4095 */
> +     MIPS_SYS(sys_getpriority        , 2)
> +     MIPS_SYS(sys_setpriority        , 3)
> +     MIPS_SYS(sys_ni_syscall , 0)
> +     MIPS_SYS(sys_statfs     , 2)
> +     MIPS_SYS(sys_fstatfs    , 2)    /* 4100 */
> +     MIPS_SYS(sys_ni_syscall , 0)    /* was ioperm(2) */
> +     MIPS_SYS(sys_socketcall , 2)
> +     MIPS_SYS(sys_syslog     , 3)
> +     MIPS_SYS(sys_setitimer  , 3)
> +     MIPS_SYS(sys_getitimer  , 2)    /* 4105 */
> +     MIPS_SYS(sys_newstat    , 2)
> +     MIPS_SYS(sys_newlstat   , 2)
> +     MIPS_SYS(sys_newfstat   , 2)
> +     MIPS_SYS(sys_uname      , 1)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* 4110 was iopl(2) */
> +     MIPS_SYS(sys_vhangup    , 0)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_idle() */
> +     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_vm86 */
> +     MIPS_SYS(sys_wait4      , 4)
> +     MIPS_SYS(sys_swapoff    , 1)    /* 4115 */
> +     MIPS_SYS(sys_sysinfo    , 1)
> +     MIPS_SYS(sys_ipc                , 6)
> +     MIPS_SYS(sys_fsync      , 1)
> +     MIPS_SYS(sys_sigreturn  , 0)
> +     MIPS_SYS(sys_clone      , 6)    /* 4120 */
> +     MIPS_SYS(sys_setdomainname, 2)
> +     MIPS_SYS(sys_newuname   , 1)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* sys_modify_ldt */
> +     MIPS_SYS(sys_adjtimex   , 1)
> +     MIPS_SYS(sys_mprotect   , 3)    /* 4125 */
> +     MIPS_SYS(sys_sigprocmask        , 3)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* was create_module */
> +     MIPS_SYS(sys_init_module        , 5)
> +     MIPS_SYS(sys_delete_module, 1)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* 4130 was get_kernel_syms */
> +     MIPS_SYS(sys_quotactl   , 0)
> +     MIPS_SYS(sys_getpgid    , 1)
> +     MIPS_SYS(sys_fchdir     , 1)
> +     MIPS_SYS(sys_bdflush    , 2)
> +     MIPS_SYS(sys_sysfs      , 3)    /* 4135 */
> +     MIPS_SYS(sys_personality        , 1)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* for afs_syscall */
> +     MIPS_SYS(sys_setfsuid   , 1)
> +     MIPS_SYS(sys_setfsgid   , 1)
> +     MIPS_SYS(sys_llseek     , 5)    /* 4140 */
> +     MIPS_SYS(sys_getdents   , 3)
> +     MIPS_SYS(sys_select     , 5)
> +     MIPS_SYS(sys_flock      , 2)
> +     MIPS_SYS(sys_msync      , 3)
> +     MIPS_SYS(sys_readv      , 3)    /* 4145 */
> +     MIPS_SYS(sys_writev     , 3)
> +     MIPS_SYS(sys_cacheflush , 3)
> +     MIPS_SYS(sys_cachectl   , 3)
> +     MIPS_SYS(sys_sysmips    , 4)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* 4150 */
> +     MIPS_SYS(sys_getsid     , 1)
> +     MIPS_SYS(sys_fdatasync  , 0)
> +     MIPS_SYS(sys_sysctl     , 1)
> +     MIPS_SYS(sys_mlock      , 2)
> +     MIPS_SYS(sys_munlock    , 2)    /* 4155 */
> +     MIPS_SYS(sys_mlockall   , 1)
> +     MIPS_SYS(sys_munlockall , 0)
> +     MIPS_SYS(sys_sched_setparam, 2)
> +     MIPS_SYS(sys_sched_getparam, 2)
> +     MIPS_SYS(sys_sched_setscheduler, 3)     /* 4160 */
> +     MIPS_SYS(sys_sched_getscheduler, 1)
> +     MIPS_SYS(sys_sched_yield        , 0)
> +     MIPS_SYS(sys_sched_get_priority_max, 1)
> +     MIPS_SYS(sys_sched_get_priority_min, 1)
> +     MIPS_SYS(sys_sched_rr_get_interval, 2)  /* 4165 */
> +     MIPS_SYS(sys_nanosleep, 2)
> +     MIPS_SYS(sys_mremap     , 5)
> +     MIPS_SYS(sys_accept     , 3)
> +     MIPS_SYS(sys_bind       , 3)
> +     MIPS_SYS(sys_connect    , 3)    /* 4170 */
> +     MIPS_SYS(sys_getpeername        , 3)
> +     MIPS_SYS(sys_getsockname        , 3)
> +     MIPS_SYS(sys_getsockopt , 5)
> +     MIPS_SYS(sys_listen     , 2)
> +     MIPS_SYS(sys_recv       , 4)    /* 4175 */
> +     MIPS_SYS(sys_recvfrom   , 6)
> +     MIPS_SYS(sys_recvmsg    , 3)
> +     MIPS_SYS(sys_send       , 4)
> +     MIPS_SYS(sys_sendmsg    , 3)
> +     MIPS_SYS(sys_sendto     , 6)    /* 4180 */
> +     MIPS_SYS(sys_setsockopt , 5)
> +     MIPS_SYS(sys_shutdown   , 2)
> +     MIPS_SYS(sys_socket     , 3)
> +     MIPS_SYS(sys_socketpair , 4)
> +     MIPS_SYS(sys_setresuid  , 3)    /* 4185 */
> +     MIPS_SYS(sys_getresuid  , 3)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* was sys_query_module */
> +     MIPS_SYS(sys_poll       , 3)
> +     MIPS_SYS(sys_nfsservctl , 3)
> +     MIPS_SYS(sys_setresgid  , 3)    /* 4190 */
> +     MIPS_SYS(sys_getresgid  , 3)
> +     MIPS_SYS(sys_prctl      , 5)
> +     MIPS_SYS(sys_rt_sigreturn, 0)
> +     MIPS_SYS(sys_rt_sigaction, 4)
> +     MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
> +     MIPS_SYS(sys_rt_sigpending, 2)
> +     MIPS_SYS(sys_rt_sigtimedwait, 4)
> +     MIPS_SYS(sys_rt_sigqueueinfo, 3)
> +     MIPS_SYS(sys_rt_sigsuspend, 0)
> +     MIPS_SYS(sys_pread64    , 6)    /* 4200 */
> +     MIPS_SYS(sys_pwrite64   , 6)
> +     MIPS_SYS(sys_chown      , 3)
> +     MIPS_SYS(sys_getcwd     , 2)
> +     MIPS_SYS(sys_capget     , 2)
> +     MIPS_SYS(sys_capset     , 2)    /* 4205 */
> +     MIPS_SYS(sys_sigaltstack        , 2)
> +     MIPS_SYS(sys_sendfile   , 4)
> +     MIPS_SYS(sys_ni_syscall , 0)
> +     MIPS_SYS(sys_ni_syscall , 0)
> +     MIPS_SYS(sys_mmap2      , 6)    /* 4210 */
> +     MIPS_SYS(sys_truncate64 , 4)
> +     MIPS_SYS(sys_ftruncate64        , 4)
> +     MIPS_SYS(sys_stat64     , 2)
> +     MIPS_SYS(sys_lstat64    , 2)
> +     MIPS_SYS(sys_fstat64    , 2)    /* 4215 */
> +     MIPS_SYS(sys_pivot_root , 2)
> +     MIPS_SYS(sys_mincore    , 3)
> +     MIPS_SYS(sys_madvise    , 3)
> +     MIPS_SYS(sys_getdents64 , 3)
> +     MIPS_SYS(sys_fcntl64    , 3)    /* 4220 */
> +     MIPS_SYS(sys_ni_syscall , 0)
> +     MIPS_SYS(sys_gettid     , 0)
> +     MIPS_SYS(sys_readahead  , 5)
> +     MIPS_SYS(sys_setxattr   , 5)
> +     MIPS_SYS(sys_lsetxattr  , 5)    /* 4225 */
> +     MIPS_SYS(sys_fsetxattr  , 5)
> +     MIPS_SYS(sys_getxattr   , 4)
> +     MIPS_SYS(sys_lgetxattr  , 4)
> +     MIPS_SYS(sys_fgetxattr  , 4)
> +     MIPS_SYS(sys_listxattr  , 3)    /* 4230 */
> +     MIPS_SYS(sys_llistxattr , 3)
> +     MIPS_SYS(sys_flistxattr , 3)
> +     MIPS_SYS(sys_removexattr        , 2)
> +     MIPS_SYS(sys_lremovexattr, 2)
> +     MIPS_SYS(sys_fremovexattr, 2)   /* 4235 */
> +     MIPS_SYS(sys_tkill      , 2)
> +     MIPS_SYS(sys_sendfile64 , 5)
> +     MIPS_SYS(sys_futex      , 6)
> +     MIPS_SYS(sys_sched_setaffinity, 3)
> +     MIPS_SYS(sys_sched_getaffinity, 3)      /* 4240 */
> +     MIPS_SYS(sys_io_setup   , 2)
> +     MIPS_SYS(sys_io_destroy , 1)
> +     MIPS_SYS(sys_io_getevents, 5)
> +     MIPS_SYS(sys_io_submit  , 3)
> +     MIPS_SYS(sys_io_cancel  , 3)    /* 4245 */
> +     MIPS_SYS(sys_exit_group , 1)
> +     MIPS_SYS(sys_lookup_dcookie, 3)
> +     MIPS_SYS(sys_epoll_create, 1)
> +     MIPS_SYS(sys_epoll_ctl  , 4)
> +     MIPS_SYS(sys_epoll_wait , 3)    /* 4250 */
> +     MIPS_SYS(sys_remap_file_pages, 5)
> +     MIPS_SYS(sys_set_tid_address, 1)
> +     MIPS_SYS(sys_restart_syscall, 0)
> +     MIPS_SYS(sys_fadvise64_64, 7)
> +     MIPS_SYS(sys_statfs64   , 3)    /* 4255 */
> +     MIPS_SYS(sys_fstatfs64  , 2)
> +     MIPS_SYS(sys_timer_create, 3)
> +     MIPS_SYS(sys_timer_settime, 4)
> +     MIPS_SYS(sys_timer_gettime, 2)
> +     MIPS_SYS(sys_timer_getoverrun, 1)       /* 4260 */
> +     MIPS_SYS(sys_timer_delete, 1)
> +     MIPS_SYS(sys_clock_settime, 2)
> +     MIPS_SYS(sys_clock_gettime, 2)
> +     MIPS_SYS(sys_clock_getres, 2)
> +     MIPS_SYS(sys_clock_nanosleep, 4)        /* 4265 */
> +     MIPS_SYS(sys_tgkill     , 3)
> +     MIPS_SYS(sys_utimes     , 2)
> +     MIPS_SYS(sys_mbind      , 4)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* sys_get_mempolicy */
> +     MIPS_SYS(sys_ni_syscall , 0)    /* 4270 sys_set_mempolicy */
> +     MIPS_SYS(sys_mq_open    , 4)
> +     MIPS_SYS(sys_mq_unlink  , 1)
> +     MIPS_SYS(sys_mq_timedsend, 5)
> +     MIPS_SYS(sys_mq_timedreceive, 5)
> +     MIPS_SYS(sys_mq_notify  , 2)    /* 4275 */
> +     MIPS_SYS(sys_mq_getsetattr, 3)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* sys_vserver */
> +     MIPS_SYS(sys_waitid     , 4)
> +     MIPS_SYS(sys_ni_syscall , 0)    /* available, was setaltroot */
> +     MIPS_SYS(sys_add_key    , 5)
> +     MIPS_SYS(sys_request_key, 4)
> +     MIPS_SYS(sys_keyctl     , 5)
> +     MIPS_SYS(sys_set_thread_area, 1)
> +     MIPS_SYS(sys_inotify_init, 0)
> +     MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
> +     MIPS_SYS(sys_inotify_rm_watch, 2)
> +     MIPS_SYS(sys_migrate_pages, 4)
> +     MIPS_SYS(sys_openat, 4)
> +     MIPS_SYS(sys_mkdirat, 3)
> +     MIPS_SYS(sys_mknodat, 4)        /* 4290 */
> +     MIPS_SYS(sys_fchownat, 5)
> +     MIPS_SYS(sys_futimesat, 3)
> +     MIPS_SYS(sys_fstatat64, 4)
> +     MIPS_SYS(sys_unlinkat, 3)
> +     MIPS_SYS(sys_renameat, 4)       /* 4295 */
> +     MIPS_SYS(sys_linkat, 5)
> +     MIPS_SYS(sys_symlinkat, 3)
> +     MIPS_SYS(sys_readlinkat, 4)
> +     MIPS_SYS(sys_fchmodat, 3)
> +     MIPS_SYS(sys_faccessat, 3)      /* 4300 */
> +     MIPS_SYS(sys_pselect6, 6)
> +     MIPS_SYS(sys_ppoll, 5)
> +     MIPS_SYS(sys_unshare, 1)
> +     MIPS_SYS(sys_splice, 6)
> +     MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
> +     MIPS_SYS(sys_tee, 4)
> +     MIPS_SYS(sys_vmsplice, 4)
> +     MIPS_SYS(sys_move_pages, 6)
> +     MIPS_SYS(sys_set_robust_list, 2)
> +     MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
> +     MIPS_SYS(sys_kexec_load, 4)
> +     MIPS_SYS(sys_getcpu, 3)
> +     MIPS_SYS(sys_epoll_pwait, 6)
> +     MIPS_SYS(sys_ioprio_set, 3)
> +     MIPS_SYS(sys_ioprio_get, 2)
> +        MIPS_SYS(sys_utimensat, 4)
> +        MIPS_SYS(sys_signalfd, 3)
> +        MIPS_SYS(sys_ni_syscall, 0)     /* was timerfd */
> +        MIPS_SYS(sys_eventfd, 1)
> +        MIPS_SYS(sys_fallocate, 6)      /* 4320 */
> +        MIPS_SYS(sys_timerfd_create, 2)
> +        MIPS_SYS(sys_timerfd_gettime, 2)
> +        MIPS_SYS(sys_timerfd_settime, 4)
> +        MIPS_SYS(sys_signalfd4, 4)
> +        MIPS_SYS(sys_eventfd2, 2)       /* 4325 */
> +        MIPS_SYS(sys_epoll_create1, 1)
> +        MIPS_SYS(sys_dup3, 3)
> +        MIPS_SYS(sys_pipe2, 2)
> +        MIPS_SYS(sys_inotify_init1, 1)
> +        MIPS_SYS(sys_preadv, 5)         /* 4330 */
> +        MIPS_SYS(sys_pwritev, 5)
> +        MIPS_SYS(sys_rt_tgsigqueueinfo, 4)
> +        MIPS_SYS(sys_perf_event_open, 5)
> +        MIPS_SYS(sys_accept4, 4)
> +        MIPS_SYS(sys_recvmmsg, 5)       /* 4335 */
> +        MIPS_SYS(sys_fanotify_init, 2)
> +        MIPS_SYS(sys_fanotify_mark, 6)
> +        MIPS_SYS(sys_prlimit64, 4)
> +        MIPS_SYS(sys_name_to_handle_at, 5)
> +        MIPS_SYS(sys_open_by_handle_at, 3) /* 4340 */
> +        MIPS_SYS(sys_clock_adjtime, 2)
> +        MIPS_SYS(sys_syncfs, 1)
> +        MIPS_SYS(sys_sendmmsg, 4)
> +        MIPS_SYS(sys_setns, 2)
> +        MIPS_SYS(sys_process_vm_readv, 6) /* 345 */
> +        MIPS_SYS(sys_process_vm_writev, 6)
> +        MIPS_SYS(sys_kcmp, 5)
> +        MIPS_SYS(sys_finit_module, 3)
> +        MIPS_SYS(sys_sched_setattr, 2)
> +        MIPS_SYS(sys_sched_getattr, 3)  /* 350 */
> +        MIPS_SYS(sys_renameat2, 5)
> +        MIPS_SYS(sys_seccomp, 3)
> +        MIPS_SYS(sys_getrandom, 3)
> +        MIPS_SYS(sys_memfd_create, 2)
> +        MIPS_SYS(sys_bpf, 3)            /* 355 */
> +        MIPS_SYS(sys_execveat, 5)
> +        MIPS_SYS(sys_userfaultfd, 1)
> +        MIPS_SYS(sys_membarrier, 2)
> +        MIPS_SYS(sys_mlock2, 3)
> +        MIPS_SYS(sys_copy_file_range, 6) /* 360 */
> +        MIPS_SYS(sys_preadv2, 6)
> +        MIPS_SYS(sys_pwritev2, 6)
> +};
> +#  undef MIPS_SYS
> +# endif /* O32 */
> +
> +static int do_store_exclusive(CPUMIPSState *env)
> +{
> +    target_ulong addr;
> +    target_ulong page_addr;
> +    target_ulong val;
> +    int flags;
> +    int segv = 0;
> +    int reg;
> +    int d;
> +
> +    addr = env->lladdr;
> +    page_addr = addr & TARGET_PAGE_MASK;
> +    start_exclusive();
> +    mmap_lock();
> +    flags = page_get_flags(page_addr);
> +    if ((flags & PAGE_READ) == 0) {
> +        segv = 1;
> +    } else {
> +        reg = env->llreg & 0x1f;
> +        d = (env->llreg & 0x20) != 0;
> +        if (d) {
> +            segv = get_user_s64(val, addr);
> +        } else {
> +            segv = get_user_s32(val, addr);
> +        }
> +        if (!segv) {
> +            if (val != env->llval) {
> +                env->active_tc.gpr[reg] = 0;
> +            } else {
> +                if (d) {
> +                    segv = put_user_u64(env->llnewval, addr);
> +                } else {
> +                    segv = put_user_u32(env->llnewval, addr);
> +                }
> +                if (!segv) {
> +                    env->active_tc.gpr[reg] = 1;
> +                }
> +            }
> +        }
> +    }
> +    env->lladdr = -1;
> +    if (!segv) {
> +        env->active_tc.PC += 4;
> +    }
> +    mmap_unlock();
> +    end_exclusive();
> +    return segv;
> +}
> +
> +/* Break codes */
> +enum {
> +    BRK_OVERFLOW = 6,
> +    BRK_DIVZERO = 7
> +};
> +
> +static int do_break(CPUMIPSState *env, target_siginfo_t *info,
> +                    unsigned int code)
> +{
> +    int ret = -1;
> +
> +    switch (code) {
> +    case BRK_OVERFLOW:
> +    case BRK_DIVZERO:
> +        info->si_signo = TARGET_SIGFPE;
> +        info->si_errno = 0;
> +        info->si_code = (code == BRK_OVERFLOW) ? FPE_INTOVF : FPE_INTDIV;
> +        queue_signal(env, info->si_signo, QEMU_SI_FAULT, &*info);
> +        ret = 0;
> +        break;
> +    default:
> +        info->si_signo = TARGET_SIGTRAP;
> +        info->si_errno = 0;
> +        queue_signal(env, info->si_signo, QEMU_SI_FAULT, &*info);
> +        ret = 0;
> +        break;
> +    }
> +
> +    return ret;
> +}
> +
> +void cpu_loop(CPUMIPSState *env)
> +{
> +    CPUState *cs = CPU(mips_env_get_cpu(env));
> +    target_siginfo_t info;
> +    int trapnr;
> +    abi_long ret;
> +# ifdef TARGET_ABI_MIPSO32
> +    unsigned int syscall_num;
> +# endif
> +
> +    for(;;) {
> +        cpu_exec_start(cs);
> +        trapnr = cpu_exec(cs);
> +        cpu_exec_end(cs);
> +        process_queued_cpu_work(cs);
> +
> +        switch(trapnr) {
> +        case EXCP_SYSCALL:
> +            env->active_tc.PC += 4;
> +# ifdef TARGET_ABI_MIPSO32
> +            syscall_num = env->active_tc.gpr[2] - 4000;
> +            if (syscall_num >= sizeof(mips_syscall_args)) {
> +                ret = -TARGET_ENOSYS;
> +            } else {
> +                int nb_args;
> +                abi_ulong sp_reg;
> +                abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
> +
> +                nb_args = mips_syscall_args[syscall_num];
> +                sp_reg = env->active_tc.gpr[29];
> +                switch (nb_args) {
> +                /* these arguments are taken from the stack */
> +                case 8:
> +                    if ((ret = get_user_ual(arg8, sp_reg + 28)) != 0) {
> +                        goto done_syscall;
> +                    }
> +                case 7:
> +                    if ((ret = get_user_ual(arg7, sp_reg + 24)) != 0) {
> +                        goto done_syscall;
> +                    }
> +                case 6:
> +                    if ((ret = get_user_ual(arg6, sp_reg + 20)) != 0) {
> +                        goto done_syscall;
> +                    }
> +                case 5:
> +                    if ((ret = get_user_ual(arg5, sp_reg + 16)) != 0) {
> +                        goto done_syscall;
> +                    }
> +                default:
> +                    break;
> +                }
> +                ret = do_syscall(env, env->active_tc.gpr[2],
> +                                 env->active_tc.gpr[4],
> +                                 env->active_tc.gpr[5],
> +                                 env->active_tc.gpr[6],
> +                                 env->active_tc.gpr[7],
> +                                 arg5, arg6, arg7, arg8);
> +            }
> +done_syscall:
> +# else
> +            ret = do_syscall(env, env->active_tc.gpr[2],
> +                             env->active_tc.gpr[4], env->active_tc.gpr[5],
> +                             env->active_tc.gpr[6], env->active_tc.gpr[7],
> +                             env->active_tc.gpr[8], env->active_tc.gpr[9],
> +                             env->active_tc.gpr[10], env->active_tc.gpr[11]);
> +# endif /* O32 */
> +            if (ret == -TARGET_ERESTARTSYS) {
> +                env->active_tc.PC -= 4;
> +                break;
> +            }
> +            if (ret == -TARGET_QEMU_ESIGRETURN) {
> +                /* Returning from a successful sigreturn syscall.
> +                   Avoid clobbering register state.  */
> +                break;
> +            }
> +            if ((abi_ulong)ret >= (abi_ulong)-1133) {
> +                env->active_tc.gpr[7] = 1; /* error flag */
> +                ret = -ret;
> +            } else {
> +                env->active_tc.gpr[7] = 0; /* error flag */
> +            }
> +            env->active_tc.gpr[2] = ret;
> +            break;
> +        case EXCP_TLBL:
> +        case EXCP_TLBS:
> +        case EXCP_AdEL:
> +        case EXCP_AdES:
> +            info.si_signo = TARGET_SIGSEGV;
> +            info.si_errno = 0;
> +            /* XXX: check env->error_code */
> +            info.si_code = TARGET_SEGV_MAPERR;
> +            info._sifields._sigfault._addr = env->CP0_BadVAddr;
> +            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
> +            break;
> +        case EXCP_CpU:
> +        case EXCP_RI:
> +            info.si_signo = TARGET_SIGILL;
> +            info.si_errno = 0;
> +            info.si_code = 0;
> +            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
> +            break;
> +        case EXCP_INTERRUPT:
> +            /* just indicate that signals should be handled asap */
> +            break;
> +        case EXCP_DEBUG:
> +            {
> +                int sig;
> +
> +                sig = gdb_handlesig(cs, TARGET_SIGTRAP);
> +                if (sig)
> +                  {
> +                    info.si_signo = sig;
> +                    info.si_errno = 0;
> +                    info.si_code = TARGET_TRAP_BRKPT;
> +                    queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
> +                  }
> +            }
> +            break;
> +        case EXCP_SC:
> +            if (do_store_exclusive(env)) {
> +                info.si_signo = TARGET_SIGSEGV;
> +                info.si_errno = 0;
> +                info.si_code = TARGET_SEGV_MAPERR;
> +                info._sifields._sigfault._addr = env->active_tc.PC;
> +                queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
> +            }
> +            break;
> +        case EXCP_DSPDIS:
> +            info.si_signo = TARGET_SIGILL;
> +            info.si_errno = 0;
> +            info.si_code = TARGET_ILL_ILLOPC;
> +            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
> +            break;
> +        /* The code below was inspired by the MIPS Linux kernel trap
> +         * handling code in arch/mips/kernel/traps.c.
> +         */
> +        case EXCP_BREAK:
> +            {
> +                abi_ulong trap_instr;
> +                unsigned int code;
> +
> +                if (env->hflags & MIPS_HFLAG_M16) {
> +                    if (env->insn_flags & ASE_MICROMIPS) {
> +                        /* microMIPS mode */
> +                        ret = get_user_u16(trap_instr, env->active_tc.PC);
> +                        if (ret != 0) {
> +                            goto error;
> +                        }
> +
> +                        if ((trap_instr >> 10) == 0x11) {
> +                            /* 16-bit instruction */
> +                            code = trap_instr & 0xf;
> +                        } else {
> +                            /* 32-bit instruction */
> +                            abi_ulong instr_lo;
> +
> +                            ret = get_user_u16(instr_lo,
> +                                               env->active_tc.PC + 2);
> +                            if (ret != 0) {
> +                                goto error;
> +                            }
> +                            trap_instr = (trap_instr << 16) | instr_lo;
> +                            code = ((trap_instr >> 6) & ((1 << 20) - 1));
> +                            /* Unfortunately, microMIPS also suffers from
> +                               the old assembler bug...  */
> +                            if (code >= (1 << 10)) {
> +                                code >>= 10;
> +                            }
> +                        }
> +                    } else {
> +                        /* MIPS16e mode */
> +                        ret = get_user_u16(trap_instr, env->active_tc.PC);
> +                        if (ret != 0) {
> +                            goto error;
> +                        }
> +                        code = (trap_instr >> 6) & 0x3f;
> +                    }
> +                } else {
> +                    ret = get_user_u32(trap_instr, env->active_tc.PC);
> +                    if (ret != 0) {
> +                        goto error;
> +                    }
> +
> +                    /* As described in the original Linux kernel code, the
> +                     * below checks on 'code' are to work around an old
> +                     * assembly bug.
> +                     */
> +                    code = ((trap_instr >> 6) & ((1 << 20) - 1));
> +                    if (code >= (1 << 10)) {
> +                        code >>= 10;
> +                    }
> +                }
> +
> +                if (do_break(env, &info, code) != 0) {
> +                    goto error;
> +                }
> +            }
> +            break;
> +        case EXCP_TRAP:
> +            {
> +                abi_ulong trap_instr;
> +                unsigned int code = 0;
> +
> +                if (env->hflags & MIPS_HFLAG_M16) {
> +                    /* microMIPS mode */
> +                    abi_ulong instr[2];
> +
> +                    ret = get_user_u16(instr[0], env->active_tc.PC) ||
> +                          get_user_u16(instr[1], env->active_tc.PC + 2);
> +
> +                    trap_instr = (instr[0] << 16) | instr[1];
> +                } else {
> +                    ret = get_user_u32(trap_instr, env->active_tc.PC);
> +                }
> +
> +                if (ret != 0) {
> +                    goto error;
> +                }
> +
> +                /* The immediate versions don't provide a code.  */
> +                if (!(trap_instr & 0xFC000000)) {
> +                    if (env->hflags & MIPS_HFLAG_M16) {
> +                        /* microMIPS mode */
> +                        code = ((trap_instr >> 12) & ((1 << 4) - 1));
> +                    } else {
> +                        code = ((trap_instr >> 6) & ((1 << 10) - 1));
> +                    }
> +                }
> +
> +                if (do_break(env, &info, code) != 0) {
> +                    goto error;
> +                }
> +            }
> +            break;
> +        case EXCP_ATOMIC:
> +            cpu_exec_step_atomic(cs);
> +            break;
> +        default:
> +error:
> +            EXCP_DUMP(env, "qemu: unhandled CPU exception 0x%x - 
> aborting\n", trapnr);
> +            abort();
> +        }
> +        process_pending_signals(env);
> +    }
> +}
>  
>  void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
>  {
> +    CPUState *cpu = ENV_GET_CPU(env);
> +    TaskState *ts = cpu->opaque;
> +    struct image_info *info = ts->info;
> +    int i;
> +
> +    for(i = 0; i < 32; i++) {
> +        env->active_tc.gpr[i] = regs->regs[i];
> +    }
> +    env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
> +    if (regs->cp0_epc & 1) {
> +        env->hflags |= MIPS_HFLAG_M16;
> +    }
> +    if (((info->elf_flags & EF_MIPS_NAN2008) != 0) !=
> +        ((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) != 0)) {
> +        if ((env->active_fpu.fcr31_rw_bitmask &
> +              (1 << FCR31_NAN2008)) == 0) {
> +            fprintf(stderr, "ELF binary's NaN mode not supported by CPU\n");
> +            exit(1);
> +        }
> +        if ((info->elf_flags & EF_MIPS_NAN2008) != 0) {
> +            env->active_fpu.fcr31 |= (1 << FCR31_NAN2008);
> +        } else {
> +            env->active_fpu.fcr31 &= ~(1 << FCR31_NAN2008);
> +        }
> +        restore_snan_bit_mode(env);
> +    }
>  }
> diff --git a/linux-user/mips64/cpu_loop.c b/linux-user/mips64/cpu_loop.c
> index b7700a5561..858bc5be78 100644
> --- a/linux-user/mips64/cpu_loop.c
> +++ b/linux-user/mips64/cpu_loop.c
> @@ -17,10 +17,4 @@
>   *  along with this program; if not, see <http://www.gnu.org/licenses/>.
>   */
>  
> -#include "qemu/osdep.h"
> -#include "qemu.h"
> -#include "cpu_loop-common.h"
> -
> -void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
> -{
> -}
> +#include "../mips/cpu_loop.c"
> 



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