Initial attempt to as operating system syscall handler.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>

4 files changed, 985 insertions, 0 deletions

diff --git a/qtmips_osemu/ossyscall.cpp b/qtmips_osemu/ossyscall.cpp
new file mode 100644
index 0000000..79052da
--- /dev/null
+++ b/qtmips_osemu/ossyscall.cpp
@@ -0,0 +1,520 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*******************************************************************************
+ * QtMips - MIPS 32-bit Architecture Subset Simulator
+ *
+ * Implemented to support following courses:
+ *
+ *   B35APO - Computer Architectures
+ *   https://cw.fel.cvut.cz/wiki/courses/b35apo
+ *
+ *   B4M35PAP - Advanced Computer Architectures
+ *   https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
+ *
+ * Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
+ * Copyright (c) 2019      Pavel Pisa <pisa@cmp.felk.cvut.cz>
+ *
+ * Faculty of Electrical Engineering (http://www.fel.cvut.cz)
+ * Czech Technical University        (http://www.cvut.cz/)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ *
+ ******************************************************************************/
+
+#include "utils.h"
+#include "core.h"
+#include "ossyscall.h"
+#include "syscall_nr.h"
+
+using namespace machine;
+using namespace osemu;
+
+typedef int (OsSyscallExceptionHandler::*syscall_handler_t)
+              (std::uint32_t &result, Core *core,
+               std::uint32_t syscall_num,
+               std::uint32_t a1, std::uint32_t a2, std::uint32_t a3,
+               std::uint32_t a4, std::uint32_t a5, std::uint32_t a6,
+               std::uint32_t a7, std::uint32_t a8);
+
+struct mips_syscall_desc_t {
+    const char *name;
+    unsigned int args;
+    syscall_handler_t handler;
+};
+
+// The list copyied from QEMU
+
+#  define MIPS_SYS(name, args, handler) {#name, args, \
+        &OsSyscallExceptionHandler::handler},
+static const mips_syscall_desc_t mips_syscall_args[] = {
+        MIPS_SYS(sys_syscall    , 8, syscall_default_handler)    /* 4000 */
+        MIPS_SYS(sys_exit       , 1, syscall_default_handler)
+        MIPS_SYS(sys_fork       , 0, syscall_default_handler)
+        MIPS_SYS(sys_read       , 3, syscall_default_handler)
+        MIPS_SYS(sys_write      , 3, syscall_default_handler)
+        MIPS_SYS(sys_open       , 3, syscall_default_handler)    /* 4005 */
+        MIPS_SYS(sys_close      , 1, syscall_default_handler)
+        MIPS_SYS(sys_waitpid    , 3, syscall_default_handler)
+        MIPS_SYS(sys_creat      , 2, syscall_default_handler)
+        MIPS_SYS(sys_link       , 2, syscall_default_handler)
+        MIPS_SYS(sys_unlink     , 1, syscall_default_handler)    /* 4010 */
+        MIPS_SYS(sys_execve     , 0, syscall_default_handler)
+        MIPS_SYS(sys_chdir      , 1, syscall_default_handler)
+        MIPS_SYS(sys_time       , 1, syscall_default_handler)
+        MIPS_SYS(sys_mknod      , 3, syscall_default_handler)
+        MIPS_SYS(sys_chmod      , 2, syscall_default_handler)    /* 4015 */
+        MIPS_SYS(sys_lchown     , 3, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* was sys_stat */
+        MIPS_SYS(sys_lseek      , 3, syscall_default_handler)
+        MIPS_SYS(sys_getpid     , 0, syscall_default_handler)    /* 4020 */
+        MIPS_SYS(sys_mount      , 5, syscall_default_handler)
+        MIPS_SYS(sys_umount     , 1, syscall_default_handler)
+        MIPS_SYS(sys_setuid     , 1, syscall_default_handler)
+        MIPS_SYS(sys_getuid     , 0, syscall_default_handler)
+        MIPS_SYS(sys_stime      , 1, syscall_default_handler)    /* 4025 */
+        MIPS_SYS(sys_ptrace     , 4, syscall_default_handler)
+        MIPS_SYS(sys_alarm      , 1, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* was sys_fstat */
+        MIPS_SYS(sys_pause      , 0, syscall_default_handler)
+        MIPS_SYS(sys_utime      , 2, syscall_default_handler)    /* 4030 */
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)
+        MIPS_SYS(sys_access     , 2, syscall_default_handler)
+        MIPS_SYS(sys_nice       , 1, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* 4035 */
+        MIPS_SYS(sys_sync       , 0, syscall_default_handler)
+        MIPS_SYS(sys_kill       , 2, syscall_default_handler)
+        MIPS_SYS(sys_rename     , 2, syscall_default_handler)
+        MIPS_SYS(sys_mkdir      , 2, syscall_default_handler)
+        MIPS_SYS(sys_rmdir      , 1, syscall_default_handler)    /* 4040 */
+        MIPS_SYS(sys_dup        , 1, syscall_default_handler)
+        MIPS_SYS(sys_pipe       , 0, syscall_default_handler)
+        MIPS_SYS(sys_times      , 1, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)
+        MIPS_SYS(sys_brk        , 1, syscall_default_handler)    /* 4045 */
+        MIPS_SYS(sys_setgid     , 1, syscall_default_handler)
+        MIPS_SYS(sys_getgid     , 0, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* was signal(2, syscall_default_handler) */
+        MIPS_SYS(sys_geteuid    , 0, syscall_default_handler)
+        MIPS_SYS(sys_getegid    , 0, syscall_default_handler)    /* 4050 */
+        MIPS_SYS(sys_acct       , 0, syscall_default_handler)
+        MIPS_SYS(sys_umount2    , 2, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)
+        MIPS_SYS(sys_ioctl      , 3, syscall_default_handler)
+        MIPS_SYS(sys_fcntl      , 3, syscall_default_handler)    /* 4055 */
+        MIPS_SYS(sys_ni_syscall , 2, syscall_default_handler)
+        MIPS_SYS(sys_setpgid    , 2, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)
+        MIPS_SYS(sys_olduname   , 1, syscall_default_handler)
+        MIPS_SYS(sys_umask      , 1, syscall_default_handler)    /* 4060 */
+        MIPS_SYS(sys_chroot     , 1, syscall_default_handler)
+        MIPS_SYS(sys_ustat      , 2, syscall_default_handler)
+        MIPS_SYS(sys_dup2       , 2, syscall_default_handler)
+        MIPS_SYS(sys_getppid    , 0, syscall_default_handler)
+        MIPS_SYS(sys_getpgrp    , 0, syscall_default_handler)    /* 4065 */
+        MIPS_SYS(sys_setsid     , 0, syscall_default_handler)
+        MIPS_SYS(sys_sigaction  , 3, syscall_default_handler)
+        MIPS_SYS(sys_sgetmask   , 0, syscall_default_handler)
+        MIPS_SYS(sys_ssetmask   , 1, syscall_default_handler)
+        MIPS_SYS(sys_setreuid   , 2, syscall_default_handler)    /* 4070 */
+        MIPS_SYS(sys_setregid   , 2, syscall_default_handler)
+        MIPS_SYS(sys_sigsuspend , 0, syscall_default_handler)
+        MIPS_SYS(sys_sigpending , 1, syscall_default_handler)
+        MIPS_SYS(sys_sethostname, 2, syscall_default_handler)
+        MIPS_SYS(sys_setrlimit  , 2, syscall_default_handler)    /* 4075 */
+        MIPS_SYS(sys_getrlimit  , 2, syscall_default_handler)
+        MIPS_SYS(sys_getrusage  , 2, syscall_default_handler)
+        MIPS_SYS(sys_gettimeofday, 2, syscall_default_handler)
+        MIPS_SYS(sys_settimeofday, 2, syscall_default_handler)
+        MIPS_SYS(sys_getgroups  , 2, syscall_default_handler)    /* 4080 */
+        MIPS_SYS(sys_setgroups  , 2, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* old_select */
+        MIPS_SYS(sys_symlink    , 2, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* was sys_lstat */
+        MIPS_SYS(sys_readlink   , 3, syscall_default_handler)    /* 4085 */
+        MIPS_SYS(sys_uselib     , 1, syscall_default_handler)
+        MIPS_SYS(sys_swapon     , 2, syscall_default_handler)
+        MIPS_SYS(sys_reboot     , 3, syscall_default_handler)
+        MIPS_SYS(old_readdir    , 3, syscall_default_handler)
+        MIPS_SYS(old_mmap       , 6, syscall_default_handler)    /* 4090 */
+        MIPS_SYS(sys_munmap     , 2, syscall_default_handler)
+        MIPS_SYS(sys_truncate   , 2, syscall_default_handler)
+        MIPS_SYS(sys_ftruncate  , 2, syscall_default_handler)
+        MIPS_SYS(sys_fchmod     , 2, syscall_default_handler)
+        MIPS_SYS(sys_fchown     , 3, syscall_default_handler)    /* 4095 */
+        MIPS_SYS(sys_getpriority, 2, syscall_default_handler)
+        MIPS_SYS(sys_setpriority, 3, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)
+        MIPS_SYS(sys_statfs     , 2, syscall_default_handler)
+        MIPS_SYS(sys_fstatfs    , 2, syscall_default_handler)    /* 4100 */
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* was ioperm(2, syscall_default_handler) */
+        MIPS_SYS(sys_socketcall , 2, syscall_default_handler)
+        MIPS_SYS(sys_syslog     , 3, syscall_default_handler)
+        MIPS_SYS(sys_setitimer  , 3, syscall_default_handler)
+        MIPS_SYS(sys_getitimer  , 2, syscall_default_handler)    /* 4105 */
+        MIPS_SYS(sys_newstat    , 2, syscall_default_handler)
+        MIPS_SYS(sys_newlstat   , 2, syscall_default_handler)
+        MIPS_SYS(sys_newfstat   , 2, syscall_default_handler)
+        MIPS_SYS(sys_uname      , 1, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* 4110 was iopl(2, syscall_default_handler) */
+        MIPS_SYS(sys_vhangup    , 0, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* was sys_idle(, syscall_default_handler) */
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* was sys_vm86 */
+        MIPS_SYS(sys_wait4      , 4, syscall_default_handler)
+        MIPS_SYS(sys_swapoff    , 1, syscall_default_handler)    /* 4115 */
+        MIPS_SYS(sys_sysinfo    , 1, syscall_default_handler)
+        MIPS_SYS(sys_ipc        , 6, syscall_default_handler)
+        MIPS_SYS(sys_fsync      , 1, syscall_default_handler)
+        MIPS_SYS(sys_sigreturn  , 0, syscall_default_handler)
+        MIPS_SYS(sys_clone      , 6, syscall_default_handler)    /* 4120 */
+        MIPS_SYS(sys_setdomainname, 2, syscall_default_handler)
+        MIPS_SYS(sys_newuname   , 1, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* sys_modify_ldt */
+        MIPS_SYS(sys_adjtimex   , 1, syscall_default_handler)
+        MIPS_SYS(sys_mprotect   , 3, syscall_default_handler)    /* 4125 */
+        MIPS_SYS(sys_sigprocmask, 3, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* was create_module */
+        MIPS_SYS(sys_init_module, 5, syscall_default_handler)
+        MIPS_SYS(sys_delete_module, 1, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* 4130 was get_kernel_syms */
+        MIPS_SYS(sys_quotactl   , 0, syscall_default_handler)
+        MIPS_SYS(sys_getpgid    , 1, syscall_default_handler)
+        MIPS_SYS(sys_fchdir     , 1, syscall_default_handler)
+        MIPS_SYS(sys_bdflush    , 2, syscall_default_handler)
+        MIPS_SYS(sys_sysfs      , 3, syscall_default_handler)    /* 4135 */
+        MIPS_SYS(sys_personality        , 1, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* for afs_syscall */
+        MIPS_SYS(sys_setfsuid   , 1, syscall_default_handler)
+        MIPS_SYS(sys_setfsgid   , 1, syscall_default_handler)
+        MIPS_SYS(sys_llseek     , 5, syscall_default_handler)    /* 4140 */
+        MIPS_SYS(sys_getdents   , 3, syscall_default_handler)
+        MIPS_SYS(sys_select     , 5, syscall_default_handler)
+        MIPS_SYS(sys_flock      , 2, syscall_default_handler)
+        MIPS_SYS(sys_msync      , 3, syscall_default_handler)
+        MIPS_SYS(sys_readv      , 3, syscall_default_handler)    /* 4145 */
+        MIPS_SYS(sys_writev     , 3, syscall_default_handler)
+        MIPS_SYS(sys_cacheflush , 3, syscall_default_handler)
+        MIPS_SYS(sys_cachectl   , 3, syscall_default_handler)
+        MIPS_SYS(sys_sysmips    , 4, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* 4150 */
+        MIPS_SYS(sys_getsid     , 1, syscall_default_handler)
+        MIPS_SYS(sys_fdatasync  , 0, syscall_default_handler)
+        MIPS_SYS(sys_sysctl     , 1, syscall_default_handler)
+        MIPS_SYS(sys_mlock      , 2, syscall_default_handler)
+        MIPS_SYS(sys_munlock    , 2, syscall_default_handler)    /* 4155 */
+        MIPS_SYS(sys_mlockall   , 1, syscall_default_handler)
+        MIPS_SYS(sys_munlockall , 0, syscall_default_handler)
+        MIPS_SYS(sys_sched_setparam, 2, syscall_default_handler)
+        MIPS_SYS(sys_sched_getparam, 2, syscall_default_handler)
+        MIPS_SYS(sys_sched_setscheduler, 3, syscall_default_handler)     /* 4160 */
+        MIPS_SYS(sys_sched_getscheduler, 1, syscall_default_handler)
+        MIPS_SYS(sys_sched_yield, 0, syscall_default_handler)
+        MIPS_SYS(sys_sched_get_priority_max, 1, syscall_default_handler)
+        MIPS_SYS(sys_sched_get_priority_min, 1, syscall_default_handler)
+        MIPS_SYS(sys_sched_rr_get_interval, 2, syscall_default_handler)  /* 4165 */
+        MIPS_SYS(sys_nanosleep, 2, syscall_default_handler)
+        MIPS_SYS(sys_mremap     , 5, syscall_default_handler)
+        MIPS_SYS(sys_accept     , 3, syscall_default_handler)
+        MIPS_SYS(sys_bind       , 3, syscall_default_handler)
+        MIPS_SYS(sys_connect    , 3, syscall_default_handler)    /* 4170 */
+        MIPS_SYS(sys_getpeername, 3, syscall_default_handler)
+        MIPS_SYS(sys_getsockname, 3, syscall_default_handler)
+        MIPS_SYS(sys_getsockopt , 5, syscall_default_handler)
+        MIPS_SYS(sys_listen     , 2, syscall_default_handler)
+        MIPS_SYS(sys_recv       , 4, syscall_default_handler)    /* 4175 */
+        MIPS_SYS(sys_recvfrom   , 6, syscall_default_handler)
+        MIPS_SYS(sys_recvmsg    , 3, syscall_default_handler)
+        MIPS_SYS(sys_send       , 4, syscall_default_handler)
+        MIPS_SYS(sys_sendmsg    , 3, syscall_default_handler)
+        MIPS_SYS(sys_sendto     , 6, syscall_default_handler)    /* 4180 */
+        MIPS_SYS(sys_setsockopt , 5, syscall_default_handler)
+        MIPS_SYS(sys_shutdown   , 2, syscall_default_handler)
+        MIPS_SYS(sys_socket     , 3, syscall_default_handler)
+        MIPS_SYS(sys_socketpair , 4, syscall_default_handler)
+        MIPS_SYS(sys_setresuid  , 3, syscall_default_handler)    /* 4185 */
+        MIPS_SYS(sys_getresuid  , 3, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* was sys_query_module */
+        MIPS_SYS(sys_poll       , 3, syscall_default_handler)
+        MIPS_SYS(sys_nfsservctl , 3, syscall_default_handler)
+        MIPS_SYS(sys_setresgid  , 3, syscall_default_handler)    /* 4190 */
+        MIPS_SYS(sys_getresgid  , 3, syscall_default_handler)
+        MIPS_SYS(sys_prctl      , 5, syscall_default_handler)
+        MIPS_SYS(sys_rt_sigreturn, 0, syscall_default_handler)
+        MIPS_SYS(sys_rt_sigaction, 4, syscall_default_handler)
+        MIPS_SYS(sys_rt_sigprocmask, 4, syscall_default_handler) /* 4195 */
+        MIPS_SYS(sys_rt_sigpending, 2, syscall_default_handler)
+        MIPS_SYS(sys_rt_sigtimedwait, 4, syscall_default_handler)
+        MIPS_SYS(sys_rt_sigqueueinfo, 3, syscall_default_handler)
+        MIPS_SYS(sys_rt_sigsuspend, 0, syscall_default_handler)
+        MIPS_SYS(sys_pread64    , 6, syscall_default_handler)    /* 4200 */
+        MIPS_SYS(sys_pwrite64   , 6, syscall_default_handler)
+        MIPS_SYS(sys_chown      , 3, syscall_default_handler)
+        MIPS_SYS(sys_getcwd     , 2, syscall_default_handler)
+        MIPS_SYS(sys_capget     , 2, syscall_default_handler)
+        MIPS_SYS(sys_capset     , 2, syscall_default_handler)    /* 4205 */
+        MIPS_SYS(sys_sigaltstack, 2, syscall_default_handler)
+        MIPS_SYS(sys_sendfile   , 4, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)
+        MIPS_SYS(sys_mmap2      , 6, syscall_default_handler)    /* 4210 */
+        MIPS_SYS(sys_truncate64 , 4, syscall_default_handler)
+        MIPS_SYS(sys_ftruncate64, 4, syscall_default_handler)
+        MIPS_SYS(sys_stat64     , 2, syscall_default_handler)
+        MIPS_SYS(sys_lstat64    , 2, syscall_default_handler)
+        MIPS_SYS(sys_fstat64    , 2, syscall_default_handler)    /* 4215 */
+        MIPS_SYS(sys_pivot_root , 2, syscall_default_handler)
+        MIPS_SYS(sys_mincore    , 3, syscall_default_handler)
+        MIPS_SYS(sys_madvise    , 3, syscall_default_handler)
+        MIPS_SYS(sys_getdents64 , 3, syscall_default_handler)
+        MIPS_SYS(sys_fcntl64    , 3, syscall_default_handler)    /* 4220 */
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)
+        MIPS_SYS(sys_gettid     , 0, syscall_default_handler)
+        MIPS_SYS(sys_readahead  , 5, syscall_default_handler)
+        MIPS_SYS(sys_setxattr   , 5, syscall_default_handler)
+        MIPS_SYS(sys_lsetxattr  , 5, syscall_default_handler)    /* 4225 */
+        MIPS_SYS(sys_fsetxattr  , 5, syscall_default_handler)
+        MIPS_SYS(sys_getxattr   , 4, syscall_default_handler)
+        MIPS_SYS(sys_lgetxattr  , 4, syscall_default_handler)
+        MIPS_SYS(sys_fgetxattr  , 4, syscall_default_handler)
+        MIPS_SYS(sys_listxattr  , 3, syscall_default_handler)    /* 4230 */
+        MIPS_SYS(sys_llistxattr , 3, syscall_default_handler)
+        MIPS_SYS(sys_flistxattr , 3, syscall_default_handler)
+        MIPS_SYS(sys_removexattr        , 2, syscall_default_handler)
+        MIPS_SYS(sys_lremovexattr, 2, syscall_default_handler)
+        MIPS_SYS(sys_fremovexattr, 2, syscall_default_handler)   /* 4235 */
+        MIPS_SYS(sys_tkill      , 2, syscall_default_handler)
+        MIPS_SYS(sys_sendfile64 , 5, syscall_default_handler)
+        MIPS_SYS(sys_futex      , 6, syscall_default_handler)
+        MIPS_SYS(sys_sched_setaffinity, 3, syscall_default_handler)
+        MIPS_SYS(sys_sched_getaffinity, 3, syscall_default_handler)      /* 4240 */
+        MIPS_SYS(sys_io_setup   , 2, syscall_default_handler)
+        MIPS_SYS(sys_io_destroy , 1, syscall_default_handler)
+        MIPS_SYS(sys_io_getevents, 5, syscall_default_handler)
+        MIPS_SYS(sys_io_submit  , 3, syscall_default_handler)
+        MIPS_SYS(sys_io_cancel  , 3, syscall_default_handler)    /* 4245 */
+        MIPS_SYS(sys_exit_group , 1, syscall_default_handler)
+        MIPS_SYS(sys_lookup_dcookie, 3, syscall_default_handler)
+        MIPS_SYS(sys_epoll_create, 1, syscall_default_handler)
+        MIPS_SYS(sys_epoll_ctl  , 4, syscall_default_handler)
+        MIPS_SYS(sys_epoll_wait , 3, syscall_default_handler)    /* 4250 */
+        MIPS_SYS(sys_remap_file_pages, 5, syscall_default_handler)
+        MIPS_SYS(sys_set_tid_address, 1, syscall_default_handler)
+        MIPS_SYS(sys_restart_syscall, 0, syscall_default_handler)
+        MIPS_SYS(sys_fadvise64_64, 7, syscall_default_handler)
+        MIPS_SYS(sys_statfs64   , 3, syscall_default_handler)    /* 4255 */
+        MIPS_SYS(sys_fstatfs64  , 2, syscall_default_handler)
+        MIPS_SYS(sys_timer_create, 3, syscall_default_handler)
+        MIPS_SYS(sys_timer_settime, 4, syscall_default_handler)
+        MIPS_SYS(sys_timer_gettime, 2, syscall_default_handler)
+        MIPS_SYS(sys_timer_getoverrun, 1, syscall_default_handler)       /* 4260 */
+        MIPS_SYS(sys_timer_delete, 1, syscall_default_handler)
+        MIPS_SYS(sys_clock_settime, 2, syscall_default_handler)
+        MIPS_SYS(sys_clock_gettime, 2, syscall_default_handler)
+        MIPS_SYS(sys_clock_getres, 2, syscall_default_handler)
+        MIPS_SYS(sys_clock_nanosleep, 4, syscall_default_handler)        /* 4265 */
+        MIPS_SYS(sys_tgkill     , 3, syscall_default_handler)
+        MIPS_SYS(sys_utimes     , 2, syscall_default_handler)
+        MIPS_SYS(sys_mbind      , 4, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* sys_get_mempolicy */
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* 4270 sys_set_mempolicy */
+        MIPS_SYS(sys_mq_open    , 4, syscall_default_handler)
+        MIPS_SYS(sys_mq_unlink  , 1, syscall_default_handler)
+        MIPS_SYS(sys_mq_timedsend, 5, syscall_default_handler)
+        MIPS_SYS(sys_mq_timedreceive, 5, syscall_default_handler)
+        MIPS_SYS(sys_mq_notify  , 2, syscall_default_handler)    /* 4275 */
+        MIPS_SYS(sys_mq_getsetattr, 3, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* sys_vserver */
+        MIPS_SYS(sys_waitid     , 4, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall , 0, syscall_default_handler)    /* available, was setaltroot */
+        MIPS_SYS(sys_add_key    , 5, syscall_default_handler)
+        MIPS_SYS(sys_request_key, 4, syscall_default_handler)
+        MIPS_SYS(sys_keyctl     , 5, syscall_default_handler)
+        MIPS_SYS(sys_set_thread_area, 1, syscall_default_handler)
+        MIPS_SYS(sys_inotify_init, 0, syscall_default_handler)
+        MIPS_SYS(sys_inotify_add_watch, 3, syscall_default_handler) /* 4285 */
+        MIPS_SYS(sys_inotify_rm_watch, 2, syscall_default_handler)
+        MIPS_SYS(sys_migrate_pages, 4, syscall_default_handler)
+        MIPS_SYS(sys_openat, 4, syscall_default_handler)
+        MIPS_SYS(sys_mkdirat, 3, syscall_default_handler)
+        MIPS_SYS(sys_mknodat, 4, syscall_default_handler)        /* 4290 */
+        MIPS_SYS(sys_fchownat, 5, syscall_default_handler)
+        MIPS_SYS(sys_futimesat, 3, syscall_default_handler)
+        MIPS_SYS(sys_fstatat64, 4, syscall_default_handler)
+        MIPS_SYS(sys_unlinkat, 3, syscall_default_handler)
+        MIPS_SYS(sys_renameat, 4, syscall_default_handler)       /* 4295 */
+        MIPS_SYS(sys_linkat, 5, syscall_default_handler)
+        MIPS_SYS(sys_symlinkat, 3, syscall_default_handler)
+        MIPS_SYS(sys_readlinkat, 4, syscall_default_handler)
+        MIPS_SYS(sys_fchmodat, 3, syscall_default_handler)
+        MIPS_SYS(sys_faccessat, 3, syscall_default_handler)      /* 4300 */
+        MIPS_SYS(sys_pselect6, 6, syscall_default_handler)
+        MIPS_SYS(sys_ppoll, 5, syscall_default_handler)
+        MIPS_SYS(sys_unshare, 1, syscall_default_handler)
+        MIPS_SYS(sys_splice, 6, syscall_default_handler)
+        MIPS_SYS(sys_sync_file_range, 7, syscall_default_handler) /* 4305 */
+        MIPS_SYS(sys_tee, 4, syscall_default_handler)
+        MIPS_SYS(sys_vmsplice, 4, syscall_default_handler)
+        MIPS_SYS(sys_move_pages, 6, syscall_default_handler)
+        MIPS_SYS(sys_set_robust_list, 2, syscall_default_handler)
+        MIPS_SYS(sys_get_robust_list, 3, syscall_default_handler) /* 4310 */
+        MIPS_SYS(sys_kexec_load, 4, syscall_default_handler)
+        MIPS_SYS(sys_getcpu, 3, syscall_default_handler)
+        MIPS_SYS(sys_epoll_pwait, 6, syscall_default_handler)
+        MIPS_SYS(sys_ioprio_set, 3, syscall_default_handler)
+        MIPS_SYS(sys_ioprio_get, 2, syscall_default_handler)
+        MIPS_SYS(sys_utimensat, 4, syscall_default_handler)
+        MIPS_SYS(sys_signalfd, 3, syscall_default_handler)
+        MIPS_SYS(sys_ni_syscall, 0, syscall_default_handler)     /* was timerfd */
+        MIPS_SYS(sys_eventfd, 1, syscall_default_handler)
+        MIPS_SYS(sys_fallocate, 6, syscall_default_handler)      /* 4320 */
+        MIPS_SYS(sys_timerfd_create, 2, syscall_default_handler)
+        MIPS_SYS(sys_timerfd_gettime, 2, syscall_default_handler)
+        MIPS_SYS(sys_timerfd_settime, 4, syscall_default_handler)
+        MIPS_SYS(sys_signalfd4, 4, syscall_default_handler)
+        MIPS_SYS(sys_eventfd2, 2, syscall_default_handler)       /* 4325 */
+        MIPS_SYS(sys_epoll_create1, 1, syscall_default_handler)
+        MIPS_SYS(sys_dup3, 3, syscall_default_handler)
+        MIPS_SYS(sys_pipe2, 2, syscall_default_handler)
+        MIPS_SYS(sys_inotify_init1, 1, syscall_default_handler)
+        MIPS_SYS(sys_preadv, 5, syscall_default_handler)         /* 4330 */
+        MIPS_SYS(sys_pwritev, 5, syscall_default_handler)
+        MIPS_SYS(sys_rt_tgsigqueueinfo, 4, syscall_default_handler)
+        MIPS_SYS(sys_perf_event_open, 5, syscall_default_handler)
+        MIPS_SYS(sys_accept4, 4, syscall_default_handler)
+        MIPS_SYS(sys_recvmmsg, 5, syscall_default_handler)       /* 4335 */
+        MIPS_SYS(sys_fanotify_init, 2, syscall_default_handler)
+        MIPS_SYS(sys_fanotify_mark, 6, syscall_default_handler)
+        MIPS_SYS(sys_prlimit64, 4, syscall_default_handler)
+        MIPS_SYS(sys_name_to_handle_at, 5, syscall_default_handler)
+        MIPS_SYS(sys_open_by_handle_at, 3, syscall_default_handler) /* 4340 */
+        MIPS_SYS(sys_clock_adjtime, 2, syscall_default_handler)
+        MIPS_SYS(sys_syncfs, 1, syscall_default_handler)
+        MIPS_SYS(sys_sendmmsg, 4, syscall_default_handler)
+        MIPS_SYS(sys_setns, 2, syscall_default_handler)
+        MIPS_SYS(sys_process_vm_readv, 6, syscall_default_handler) /* 345 */
+        MIPS_SYS(sys_process_vm_writev, 6, syscall_default_handler)
+        MIPS_SYS(sys_kcmp, 5, syscall_default_handler)
+        MIPS_SYS(sys_finit_module, 3, syscall_default_handler)
+        MIPS_SYS(sys_sched_setattr, 2, syscall_default_handler)
+        MIPS_SYS(sys_sched_getattr, 3, syscall_default_handler)  /* 350 */
+        MIPS_SYS(sys_renameat2, 5, syscall_default_handler)
+        MIPS_SYS(sys_seccomp, 3, syscall_default_handler)
+        MIPS_SYS(sys_getrandom, 3, syscall_default_handler)
+        MIPS_SYS(sys_memfd_create, 2, syscall_default_handler)
+        MIPS_SYS(sys_bpf, 3, syscall_default_handler)            /* 355 */
+        MIPS_SYS(sys_execveat, 5, syscall_default_handler)
+        MIPS_SYS(sys_userfaultfd, 1, syscall_default_handler)
+        MIPS_SYS(sys_membarrier, 2, syscall_default_handler)
+        MIPS_SYS(sys_mlock2, 3, syscall_default_handler)
+        MIPS_SYS(sys_copy_file_range, 6, syscall_default_handler) /* 360 */
+        MIPS_SYS(sys_preadv2, 6, syscall_default_handler)
+        MIPS_SYS(sys_pwritev2, 6, syscall_default_handler)
+};
+
+const unsigned mips_syscall_args_size =
+        sizeof(mips_syscall_args)/sizeof(*mips_syscall_args);
+
+bool OsSyscallExceptionHandler::handle_exception(Core *core, Registers *regs,
+                            ExceptionCause excause, std::uint32_t inst_addr,
+                            std::uint32_t next_addr, std::uint32_t jump_branch_pc,
+                            bool in_delay_slot, std::uint32_t mem_ref_addr) {
+    unsigned int syscall_num = regs->read_gp(2);
+    const mips_syscall_desc_t *sdesc;
+    std::uint32_t a1 = 0, a2 = 0, a3 = 0, a4 = 0, a5 = 0, a6 = 0, a7 = 0, a8 = 0;
+    std::uint32_t sp = regs->read_gp(29);
+    std::uint32_t result;
+    int status;
+
+    MemoryAccess *mem_data = core->get_mem_data();
+    MemoryAccess *mem_program = core->get_mem_program();
+
+#if 1
+    printf("Exception cause %d instruction PC 0x%08lx next PC 0x%08lx jump branch PC 0x%08lx "
+           "in_delay_slot %d registers PC 0x%08lx mem ref 0x%08lx\n",
+           excause, (unsigned long)inst_addr, (unsigned long)next_addr,
+           (unsigned long)jump_branch_pc, (int)in_delay_slot,
+           (unsigned long)regs->read_pc(), (unsigned long)mem_ref_addr);
+#else
+    (void)excause; (void)inst_addr; (void)next_addr; (void)mem_ref_addr; (void)regs;
+    (void)jump_branch_pc; (void)in_delay_slot;
+#endif
+
+    if (syscall_num < 4000 || syscall_num >= 4000 + mips_syscall_args_size)
+        throw QTMIPS_EXCEPTION(SyscallUnknown, "System call number unknown ", QString::number(syscall_num));
+
+    syscall_num -= 4000;
+
+    sdesc = &mips_syscall_args[syscall_num];
+    a1 = regs->read_gp(4);
+    a2 = regs->read_gp(5);
+    a3 = regs->read_gp(6);
+    a4 = regs->read_gp(7);
+
+    switch (sdesc->args) {
+    case 8:
+        a8 = mem_data->read_word(sp + 28);
+        FALLTROUGH
+    case 7:
+        a7 = mem_data->read_word(sp + 24);
+        FALLTROUGH
+    case 6:
+        a6 = mem_data->read_word(sp + 20);
+        FALLTROUGH
+    case 5:
+        a5 = mem_data->read_word(sp + 16);
+        FALLTROUGH
+    default:
+        break;
+    }
+
+#if 1
+    printf("Syscall %s number %d/0x%x a1 %ld a2 %ld a3 %ld a4 %ld\n",
+           sdesc->name, syscall_num, syscall_num,
+           (unsigned long)a1, (unsigned long)a2,
+           (unsigned long)a3, (unsigned long)a4);
+
+#endif
+    status = (this->*sdesc->handler)(result, core, syscall_num,
+                                      a1, a2, a3, a4, a5, a6, a7, a8);
+    emit core->stop_on_exception_reached();
+
+    regs->write_gp(7, status);
+    if (status < 0)
+        regs->write_gp(2, status);
+    else
+        regs->write_gp(2, result);
+
+    return true;
+};
+
+int OsSyscallExceptionHandler::syscall_default_handler(std::uint32_t &result, Core *core,
+               std::uint32_t syscall_num,
+               std::uint32_t a1, std::uint32_t a2, std::uint32_t a3,
+               std::uint32_t a4, std::uint32_t a5, std::uint32_t a6,
+               std::uint32_t a7, std::uint32_t a8)
+{
+    const mips_syscall_desc_t *sdesc = &mips_syscall_args[syscall_num];
+#if 1
+    printf("Unimplemented syscall %s number %d/0x%x a1 %ld a2 %ld a3 %ld a4 %ld\n",
+           sdesc->name, syscall_num, syscall_num,
+           (unsigned long)a1, (unsigned long)a2,
+           (unsigned long)a3, (unsigned long)a4);
+
+#endif
+    (void)a1; (void)a2; (void)a3; (void)a4; (void)a5; (void)a6; (void)a7; (void)a8;
+    result = 0;
+    return 0;
+}
diff --git a/qtmips_osemu/ossyscall.h b/qtmips_osemu/ossyscall.h
new file mode 100644
index 0000000..f2c8137
--- /dev/null
+++ b/qtmips_osemu/ossyscall.h
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*******************************************************************************
+ * QtMips - MIPS 32-bit Architecture Subset Simulator
+ *
+ * Implemented to support following courses:
+ *
+ *   B35APO - Computer Architectures
+ *   https://cw.fel.cvut.cz/wiki/courses/b35apo
+ *
+ *   B4M35PAP - Advanced Computer Architectures
+ *   https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
+ *
+ * Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
+ * Copyright (c) 2019      Pavel Pisa <pisa@cmp.felk.cvut.cz>
+ *
+ * Faculty of Electrical Engineering (http://www.fel.cvut.cz)
+ * Czech Technical University        (http://www.cvut.cz/)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ *
+ ******************************************************************************/
+
+#ifndef OSSYCALL_H
+#define OSSYCALL_H
+
+#include <QObject>
+#include <qtmipsexception.h>
+#include <machineconfig.h>
+#include <registers.h>
+#include <memory.h>
+#include <core.h>
+#include <instruction.h>
+#include <alu.h>
+
+namespace osemu {
+
+class OsSyscallExceptionHandler : public machine::ExceptionHandler {
+    Q_OBJECT
+public:
+    bool handle_exception(machine::Core *core, machine::Registers *regs,
+                          machine::ExceptionCause excause, std::uint32_t inst_addr,
+                          std::uint32_t next_addr, std::uint32_t jump_branch_pc,
+                          bool in_delay_slot, std::uint32_t mem_ref_addr);
+    int syscall_default_handler(std::uint32_t &result, machine::Core *core,
+                   std::uint32_t syscall_num,
+                   std::uint32_t a1, std::uint32_t a2, std::uint32_t a3,
+                   std::uint32_t a4, std::uint32_t a5, std::uint32_t a6,
+                   std::uint32_t a7, std::uint32_t a8);
+
+};
+
+}
+
+#endif // OSSYCALL_H
diff --git a/qtmips_osemu/qtmips_osemu.pro b/qtmips_osemu/qtmips_osemu.pro
new file mode 100644
index 0000000..954fa58
--- /dev/null
+++ b/qtmips_osemu/qtmips_osemu.pro
@@ -0,0 +1,24 @@
+QT -= gui
+
+TARGET = qtmips_osemu
+CONFIG += c++11
+
+TEMPLATE = lib
+
+LIBS += -L$$OUT_PWD/../qtmips_machine/ -lqtmips_machine
+
+INCLUDEPATH += $$PWD/../qtmips_machine $$PWD/../qtmips_osemu
+DEPENDPATH += $$PWD/../qtmips_machine
+
+LIBS += -lelf
+QMAKE_CXXFLAGS += -std=c++0x
+QMAKE_CXXFLAGS_DEBUG += -ggdb
+
+DEFINES += QTMIPS_OSEMU_LIBRARY
+DEFINES += QT_DEPRECATED_WARNINGS
+
+SOURCES += \
+    ossyscall.cpp
+
+HEADERS += \
+    ossyscall.h
diff --git a/qtmips_osemu/syscall_nr.h b/qtmips_osemu/syscall_nr.h
new file mode 100644
index 0000000..e70adfc
--- /dev/null
+++ b/qtmips_osemu/syscall_nr.h
@@ -0,0 +1,374 @@
+/*
+ * Linux o32 style syscalls are in the range from 4000 to 4999.
+ */
+#define TARGET_NR_Linux			4000
+#define TARGET_NR_syscall		(TARGET_NR_Linux +   0)
+#define TARGET_NR_exit			(TARGET_NR_Linux +   1)
+#define TARGET_NR_fork			(TARGET_NR_Linux +   2)
+#define TARGET_NR_read			(TARGET_NR_Linux +   3)
+#define TARGET_NR_write			(TARGET_NR_Linux +   4)
+#define TARGET_NR_open			(TARGET_NR_Linux +   5)
+#define TARGET_NR_close			(TARGET_NR_Linux +   6)
+#define TARGET_NR_waitpid		(TARGET_NR_Linux +   7)
+#define TARGET_NR_creat			(TARGET_NR_Linux +   8)
+#define TARGET_NR_link			(TARGET_NR_Linux +   9)
+#define TARGET_NR_unlink		(TARGET_NR_Linux +  10)
+#define TARGET_NR_execve		(TARGET_NR_Linux +  11)
+#define TARGET_NR_chdir			(TARGET_NR_Linux +  12)
+#define TARGET_NR_time			(TARGET_NR_Linux +  13)
+#define TARGET_NR_mknod			(TARGET_NR_Linux +  14)
+#define TARGET_NR_chmod			(TARGET_NR_Linux +  15)
+#define TARGET_NR_lchown		(TARGET_NR_Linux +  16)
+#define TARGET_NR_break			(TARGET_NR_Linux +  17)
+#define TARGET_NR_unused18		(TARGET_NR_Linux +  18)
+#define TARGET_NR_lseek			(TARGET_NR_Linux +  19)
+#define TARGET_NR_getpid		(TARGET_NR_Linux +  20)
+#define TARGET_NR_mount			(TARGET_NR_Linux +  21)
+#define TARGET_NR_umount		(TARGET_NR_Linux +  22)
+#define TARGET_NR_setuid		(TARGET_NR_Linux +  23)
+#define TARGET_NR_getuid		(TARGET_NR_Linux +  24)
+#define TARGET_NR_stime			(TARGET_NR_Linux +  25)
+#define TARGET_NR_ptrace		(TARGET_NR_Linux +  26)
+#define TARGET_NR_alarm			(TARGET_NR_Linux +  27)
+#define TARGET_NR_unused28		(TARGET_NR_Linux +  28)
+#define TARGET_NR_pause			(TARGET_NR_Linux +  29)
+#define TARGET_NR_utime			(TARGET_NR_Linux +  30)
+#define TARGET_NR_stty			(TARGET_NR_Linux +  31)
+#define TARGET_NR_gtty			(TARGET_NR_Linux +  32)
+#define TARGET_NR_access		(TARGET_NR_Linux +  33)
+#define TARGET_NR_nice			(TARGET_NR_Linux +  34)
+#define TARGET_NR_ftime			(TARGET_NR_Linux +  35)
+#define TARGET_NR_sync			(TARGET_NR_Linux +  36)
+#define TARGET_NR_kill			(TARGET_NR_Linux +  37)
+#define TARGET_NR_rename		(TARGET_NR_Linux +  38)
+#define TARGET_NR_mkdir			(TARGET_NR_Linux +  39)
+#define TARGET_NR_rmdir			(TARGET_NR_Linux +  40)
+#define TARGET_NR_dup			(TARGET_NR_Linux +  41)
+#define TARGET_NR_pipe			(TARGET_NR_Linux +  42)
+#define TARGET_NR_times			(TARGET_NR_Linux +  43)
+#define TARGET_NR_prof			(TARGET_NR_Linux +  44)
+#define TARGET_NR_brk			(TARGET_NR_Linux +  45)
+#define TARGET_NR_setgid		(TARGET_NR_Linux +  46)
+#define TARGET_NR_getgid		(TARGET_NR_Linux +  47)
+#define TARGET_NR_signal		(TARGET_NR_Linux +  48)
+#define TARGET_NR_geteuid		(TARGET_NR_Linux +  49)
+#define TARGET_NR_getegid		(TARGET_NR_Linux +  50)
+#define TARGET_NR_acct			(TARGET_NR_Linux +  51)
+#define TARGET_NR_umount2		(TARGET_NR_Linux +  52)
+#define TARGET_NR_lock			(TARGET_NR_Linux +  53)
+#define TARGET_NR_ioctl			(TARGET_NR_Linux +  54)
+#define TARGET_NR_fcntl			(TARGET_NR_Linux +  55)
+#define TARGET_NR_mpx			(TARGET_NR_Linux +  56)
+#define TARGET_NR_setpgid		(TARGET_NR_Linux +  57)
+#define TARGET_NR_ulimit		(TARGET_NR_Linux +  58)
+#define TARGET_NR_unused59		(TARGET_NR_Linux +  59)
+#define TARGET_NR_umask			(TARGET_NR_Linux +  60)
+#define TARGET_NR_chroot		(TARGET_NR_Linux +  61)
+#define TARGET_NR_ustat			(TARGET_NR_Linux +  62)
+#define TARGET_NR_dup2			(TARGET_NR_Linux +  63)
+#define TARGET_NR_getppid		(TARGET_NR_Linux +  64)
+#define TARGET_NR_getpgrp		(TARGET_NR_Linux +  65)
+#define TARGET_NR_setsid		(TARGET_NR_Linux +  66)
+#define TARGET_NR_sigaction		(TARGET_NR_Linux +  67)
+#define TARGET_NR_sgetmask		(TARGET_NR_Linux +  68)
+#define TARGET_NR_ssetmask		(TARGET_NR_Linux +  69)
+#define TARGET_NR_setreuid		(TARGET_NR_Linux +  70)
+#define TARGET_NR_setregid		(TARGET_NR_Linux +  71)
+#define TARGET_NR_sigsuspend		(TARGET_NR_Linux +  72)
+#define TARGET_NR_sigpending		(TARGET_NR_Linux +  73)
+#define TARGET_NR_sethostname		(TARGET_NR_Linux +  74)
+#define TARGET_NR_setrlimit		(TARGET_NR_Linux +  75)
+#define TARGET_NR_getrlimit		(TARGET_NR_Linux +  76)
+#define TARGET_NR_getrusage		(TARGET_NR_Linux +  77)
+#define TARGET_NR_gettimeofday		(TARGET_NR_Linux +  78)
+#define TARGET_NR_settimeofday		(TARGET_NR_Linux +  79)
+#define TARGET_NR_getgroups		(TARGET_NR_Linux +  80)
+#define TARGET_NR_setgroups		(TARGET_NR_Linux +  81)
+#define TARGET_NR_reserved82		(TARGET_NR_Linux +  82)
+#define TARGET_NR_symlink		(TARGET_NR_Linux +  83)
+#define TARGET_NR_unused84		(TARGET_NR_Linux +  84)
+#define TARGET_NR_readlink		(TARGET_NR_Linux +  85)
+#define TARGET_NR_uselib		(TARGET_NR_Linux +  86)
+#define TARGET_NR_swapon		(TARGET_NR_Linux +  87)
+#define TARGET_NR_reboot		(TARGET_NR_Linux +  88)
+#define TARGET_NR_readdir		(TARGET_NR_Linux +  89)
+#define TARGET_NR_mmap			(TARGET_NR_Linux +  90)
+#define TARGET_NR_munmap		(TARGET_NR_Linux +  91)
+#define TARGET_NR_truncate		(TARGET_NR_Linux +  92)
+#define TARGET_NR_ftruncate		(TARGET_NR_Linux +  93)
+#define TARGET_NR_fchmod		(TARGET_NR_Linux +  94)
+#define TARGET_NR_fchown		(TARGET_NR_Linux +  95)
+#define TARGET_NR_getpriority		(TARGET_NR_Linux +  96)
+#define TARGET_NR_setpriority		(TARGET_NR_Linux +  97)
+#define TARGET_NR_profil		(TARGET_NR_Linux +  98)
+#define TARGET_NR_statfs		(TARGET_NR_Linux +  99)
+#define TARGET_NR_fstatfs		(TARGET_NR_Linux + 100)
+#define TARGET_NR_ioperm		(TARGET_NR_Linux + 101)
+#define TARGET_NR_socketcall		(TARGET_NR_Linux + 102)
+#define TARGET_NR_syslog		(TARGET_NR_Linux + 103)
+#define TARGET_NR_setitimer		(TARGET_NR_Linux + 104)
+#define TARGET_NR_getitimer		(TARGET_NR_Linux + 105)
+#define TARGET_NR_stat			(TARGET_NR_Linux + 106)
+#define TARGET_NR_lstat			(TARGET_NR_Linux + 107)
+#define TARGET_NR_fstat			(TARGET_NR_Linux + 108)
+#define TARGET_NR_unused109		(TARGET_NR_Linux + 109)
+#define TARGET_NR_iopl			(TARGET_NR_Linux + 110)
+#define TARGET_NR_vhangup		(TARGET_NR_Linux + 111)
+#define TARGET_NR_idle			(TARGET_NR_Linux + 112)
+#define TARGET_NR_vm86			(TARGET_NR_Linux + 113)
+#define TARGET_NR_wait4			(TARGET_NR_Linux + 114)
+#define TARGET_NR_swapoff		(TARGET_NR_Linux + 115)
+#define TARGET_NR_sysinfo		(TARGET_NR_Linux + 116)
+#define TARGET_NR_ipc			(TARGET_NR_Linux + 117)
+#define TARGET_NR_fsync			(TARGET_NR_Linux + 118)
+#define TARGET_NR_sigreturn		(TARGET_NR_Linux + 119)
+#define TARGET_NR_clone			(TARGET_NR_Linux + 120)
+#define TARGET_NR_setdomainname		(TARGET_NR_Linux + 121)
+#define TARGET_NR_uname			(TARGET_NR_Linux + 122)
+#define TARGET_NR_modify_ldt		(TARGET_NR_Linux + 123)
+#define TARGET_NR_adjtimex		(TARGET_NR_Linux + 124)
+#define TARGET_NR_mprotect		(TARGET_NR_Linux + 125)
+#define TARGET_NR_sigprocmask		(TARGET_NR_Linux + 126)
+#define TARGET_NR_create_module		(TARGET_NR_Linux + 127)
+#define TARGET_NR_init_module		(TARGET_NR_Linux + 128)
+#define TARGET_NR_delete_module		(TARGET_NR_Linux + 129)
+#define TARGET_NR_get_kernel_syms	(TARGET_NR_Linux + 130)
+#define TARGET_NR_quotactl		(TARGET_NR_Linux + 131)
+#define TARGET_NR_getpgid		(TARGET_NR_Linux + 132)
+#define TARGET_NR_fchdir		(TARGET_NR_Linux + 133)
+#define TARGET_NR_bdflush		(TARGET_NR_Linux + 134)
+#define TARGET_NR_sysfs			(TARGET_NR_Linux + 135)
+#define TARGET_NR_personality		(TARGET_NR_Linux + 136)
+#define TARGET_NR_afs_syscall		(TARGET_NR_Linux + 137) /* Syscall for Andrew File System */
+#define TARGET_NR_setfsuid		(TARGET_NR_Linux + 138)
+#define TARGET_NR_setfsgid		(TARGET_NR_Linux + 139)
+#define TARGET_NR__llseek		(TARGET_NR_Linux + 140)
+#define TARGET_NR_getdents		(TARGET_NR_Linux + 141)
+#define TARGET_NR__newselect		(TARGET_NR_Linux + 142)
+#define TARGET_NR_flock			(TARGET_NR_Linux + 143)
+#define TARGET_NR_msync			(TARGET_NR_Linux + 144)
+#define TARGET_NR_readv			(TARGET_NR_Linux + 145)
+#define TARGET_NR_writev		(TARGET_NR_Linux + 146)
+#define TARGET_NR_cacheflush		(TARGET_NR_Linux + 147)
+#define TARGET_NR_cachectl		(TARGET_NR_Linux + 148)
+#define TARGET_NR_sysmips		(TARGET_NR_Linux + 149)
+#define TARGET_NR_unused150		(TARGET_NR_Linux + 150)
+#define TARGET_NR_getsid		(TARGET_NR_Linux + 151)
+#define TARGET_NR_fdatasync		(TARGET_NR_Linux + 152)
+#define TARGET_NR__sysctl		(TARGET_NR_Linux + 153)
+#define TARGET_NR_mlock			(TARGET_NR_Linux + 154)
+#define TARGET_NR_munlock		(TARGET_NR_Linux + 155)
+#define TARGET_NR_mlockall		(TARGET_NR_Linux + 156)
+#define TARGET_NR_munlockall		(TARGET_NR_Linux + 157)
+#define TARGET_NR_sched_setparam	(TARGET_NR_Linux + 158)
+#define TARGET_NR_sched_getparam	(TARGET_NR_Linux + 159)
+#define TARGET_NR_sched_setscheduler	(TARGET_NR_Linux + 160)
+#define TARGET_NR_sched_getscheduler	(TARGET_NR_Linux + 161)
+#define TARGET_NR_sched_yield		(TARGET_NR_Linux + 162)
+#define TARGET_NR_sched_get_priority_max	(TARGET_NR_Linux + 163)
+#define TARGET_NR_sched_get_priority_min	(TARGET_NR_Linux + 164)
+#define TARGET_NR_sched_rr_get_interval	(TARGET_NR_Linux + 165)
+#define TARGET_NR_nanosleep		(TARGET_NR_Linux + 166)
+#define TARGET_NR_mremap		(TARGET_NR_Linux + 167)
+#define TARGET_NR_accept		(TARGET_NR_Linux + 168)
+#define TARGET_NR_bind			(TARGET_NR_Linux + 169)
+#define TARGET_NR_connect		(TARGET_NR_Linux + 170)
+#define TARGET_NR_getpeername		(TARGET_NR_Linux + 171)
+#define TARGET_NR_getsockname		(TARGET_NR_Linux + 172)
+#define TARGET_NR_getsockopt		(TARGET_NR_Linux + 173)
+#define TARGET_NR_listen		(TARGET_NR_Linux + 174)
+#define TARGET_NR_recv			(TARGET_NR_Linux + 175)
+#define TARGET_NR_recvfrom		(TARGET_NR_Linux + 176)
+#define TARGET_NR_recvmsg		(TARGET_NR_Linux + 177)
+#define TARGET_NR_send			(TARGET_NR_Linux + 178)
+#define TARGET_NR_sendmsg		(TARGET_NR_Linux + 179)
+#define TARGET_NR_sendto		(TARGET_NR_Linux + 180)
+#define TARGET_NR_setsockopt		(TARGET_NR_Linux + 181)
+#define TARGET_NR_shutdown		(TARGET_NR_Linux + 182)
+#define TARGET_NR_socket		(TARGET_NR_Linux + 183)
+#define TARGET_NR_socketpair		(TARGET_NR_Linux + 184)
+#define TARGET_NR_setresuid		(TARGET_NR_Linux + 185)
+#define TARGET_NR_getresuid		(TARGET_NR_Linux + 186)
+#define TARGET_NR_query_module		(TARGET_NR_Linux + 187)
+#define TARGET_NR_poll			(TARGET_NR_Linux + 188)
+#define TARGET_NR_nfsservctl		(TARGET_NR_Linux + 189)
+#define TARGET_NR_setresgid		(TARGET_NR_Linux + 190)
+#define TARGET_NR_getresgid		(TARGET_NR_Linux + 191)
+#define TARGET_NR_prctl			(TARGET_NR_Linux + 192)
+#define TARGET_NR_rt_sigreturn		(TARGET_NR_Linux + 193)
+#define TARGET_NR_rt_sigaction		(TARGET_NR_Linux + 194)
+#define TARGET_NR_rt_sigprocmask	(TARGET_NR_Linux + 195)
+#define TARGET_NR_rt_sigpending		(TARGET_NR_Linux + 196)
+#define TARGET_NR_rt_sigtimedwait	(TARGET_NR_Linux + 197)
+#define TARGET_NR_rt_sigqueueinfo	(TARGET_NR_Linux + 198)
+#define TARGET_NR_rt_sigsuspend		(TARGET_NR_Linux + 199)
+#define TARGET_NR_pread64		(TARGET_NR_Linux + 200)
+#define TARGET_NR_pwrite64		(TARGET_NR_Linux + 201)
+#define TARGET_NR_chown 		(TARGET_NR_Linux + 202)
+#define TARGET_NR_getcwd		(TARGET_NR_Linux + 203)
+#define TARGET_NR_capget		(TARGET_NR_Linux + 204)
+#define TARGET_NR_capset		(TARGET_NR_Linux + 205)
+#define TARGET_NR_sigaltstack		(TARGET_NR_Linux + 206)
+#define TARGET_NR_sendfile		(TARGET_NR_Linux + 207)
+#define TARGET_NR_getpmsg		(TARGET_NR_Linux + 208)
+#define TARGET_NR_putpmsg		(TARGET_NR_Linux + 209)
+#define TARGET_NR_mmap2			(TARGET_NR_Linux + 210)
+#define TARGET_NR_truncate64		(TARGET_NR_Linux + 211)
+#define TARGET_NR_ftruncate64		(TARGET_NR_Linux + 212)
+#define TARGET_NR_stat64		(TARGET_NR_Linux + 213)
+#define TARGET_NR_lstat64		(TARGET_NR_Linux + 214)
+#define TARGET_NR_fstat64		(TARGET_NR_Linux + 215)
+#define TARGET_NR_pivot_root		(TARGET_NR_Linux + 216)
+#define TARGET_NR_mincore		(TARGET_NR_Linux + 217)
+#define TARGET_NR_madvise		(TARGET_NR_Linux + 218)
+#define TARGET_NR_getdents64		(TARGET_NR_Linux + 219)
+#define TARGET_NR_fcntl64		(TARGET_NR_Linux + 220)
+#define TARGET_NR_reserved221		(TARGET_NR_Linux + 221)
+#define TARGET_NR_gettid		(TARGET_NR_Linux + 222)
+#define TARGET_NR_readahead		(TARGET_NR_Linux + 223)
+#define TARGET_NR_setxattr		(TARGET_NR_Linux + 224)
+#define TARGET_NR_lsetxattr		(TARGET_NR_Linux + 225)
+#define TARGET_NR_fsetxattr		(TARGET_NR_Linux + 226)
+#define TARGET_NR_getxattr		(TARGET_NR_Linux + 227)
+#define TARGET_NR_lgetxattr		(TARGET_NR_Linux + 228)
+#define TARGET_NR_fgetxattr		(TARGET_NR_Linux + 229)
+#define TARGET_NR_listxattr		(TARGET_NR_Linux + 230)
+#define TARGET_NR_llistxattr		(TARGET_NR_Linux + 231)
+#define TARGET_NR_flistxattr		(TARGET_NR_Linux + 232)
+#define TARGET_NR_removexattr		(TARGET_NR_Linux + 233)
+#define TARGET_NR_lremovexattr		(TARGET_NR_Linux + 234)
+#define TARGET_NR_fremovexattr		(TARGET_NR_Linux + 235)
+#define TARGET_NR_tkill			(TARGET_NR_Linux + 236)
+#define TARGET_NR_sendfile64		(TARGET_NR_Linux + 237)
+#define TARGET_NR_futex			(TARGET_NR_Linux + 238)
+#define TARGET_NR_sched_setaffinity	(TARGET_NR_Linux + 239)
+#define TARGET_NR_sched_getaffinity	(TARGET_NR_Linux + 240)
+#define TARGET_NR_io_setup		(TARGET_NR_Linux + 241)
+#define TARGET_NR_io_destroy		(TARGET_NR_Linux + 242)
+#define TARGET_NR_io_getevents		(TARGET_NR_Linux + 243)
+#define TARGET_NR_io_submit		(TARGET_NR_Linux + 244)
+#define TARGET_NR_io_cancel		(TARGET_NR_Linux + 245)
+#define TARGET_NR_exit_group		(TARGET_NR_Linux + 246)
+#define TARGET_NR_lookup_dcookie	(TARGET_NR_Linux + 247)
+#define TARGET_NR_epoll_create		(TARGET_NR_Linux + 248)
+#define TARGET_NR_epoll_ctl		(TARGET_NR_Linux + 249)
+#define TARGET_NR_epoll_wait		(TARGET_NR_Linux + 250)
+#define TARGET_NR_remap_file_pages	(TARGET_NR_Linux + 251)
+#define TARGET_NR_set_tid_address	(TARGET_NR_Linux + 252)
+#define TARGET_NR_restart_syscall	(TARGET_NR_Linux + 253)
+#define TARGET_NR_fadvise64_64          (TARGET_NR_Linux + 254)
+#define TARGET_NR_statfs64		(TARGET_NR_Linux + 255)
+#define TARGET_NR_fstatfs64		(TARGET_NR_Linux + 256)
+#define TARGET_NR_timer_create		(TARGET_NR_Linux + 257)
+#define TARGET_NR_timer_settime		(TARGET_NR_Linux + 258)
+#define TARGET_NR_timer_gettime		(TARGET_NR_Linux + 259)
+#define TARGET_NR_timer_getoverrun	(TARGET_NR_Linux + 260)
+#define TARGET_NR_timer_delete		(TARGET_NR_Linux + 261)
+#define TARGET_NR_clock_settime		(TARGET_NR_Linux + 262)
+#define TARGET_NR_clock_gettime		(TARGET_NR_Linux + 263)
+#define TARGET_NR_clock_getres		(TARGET_NR_Linux + 264)
+#define TARGET_NR_clock_nanosleep	(TARGET_NR_Linux + 265)
+#define TARGET_NR_tgkill		(TARGET_NR_Linux + 266)
+#define TARGET_NR_utimes		(TARGET_NR_Linux + 267)
+#define TARGET_NR_mbind			(TARGET_NR_Linux + 268)
+#define TARGET_NR_get_mempolicy		(TARGET_NR_Linux + 269)
+#define TARGET_NR_set_mempolicy		(TARGET_NR_Linux + 270)
+#define TARGET_NR_mq_open		(TARGET_NR_Linux + 271)
+#define TARGET_NR_mq_unlink		(TARGET_NR_Linux + 272)
+#define TARGET_NR_mq_timedsend		(TARGET_NR_Linux + 273)
+#define TARGET_NR_mq_timedreceive	(TARGET_NR_Linux + 274)
+#define TARGET_NR_mq_notify		(TARGET_NR_Linux + 275)
+#define TARGET_NR_mq_getsetattr		(TARGET_NR_Linux + 276)
+#define TARGET_NR_vserver		(TARGET_NR_Linux + 277)
+#define TARGET_NR_waitid		(TARGET_NR_Linux + 278)
+/* #define TARGET_NR_sys_setaltroot	(TARGET_NR_Linux + 279) */
+#define TARGET_NR_add_key		(TARGET_NR_Linux + 280)
+#define TARGET_NR_request_key		(TARGET_NR_Linux + 281)
+#define TARGET_NR_keyctl		(TARGET_NR_Linux + 282)
+#define TARGET_NR_set_thread_area	(TARGET_NR_Linux + 283)
+#define TARGET_NR_inotify_init		(TARGET_NR_Linux + 284)
+#define TARGET_NR_inotify_add_watch	(TARGET_NR_Linux + 285)
+#define TARGET_NR_inotify_rm_watch	(TARGET_NR_Linux + 286)
+#define TARGET_NR_migrate_pages		(TARGET_NR_Linux + 287)
+#define TARGET_NR_openat		(TARGET_NR_Linux + 288)
+#define TARGET_NR_mkdirat		(TARGET_NR_Linux + 289)
+#define TARGET_NR_mknodat		(TARGET_NR_Linux + 290)
+#define TARGET_NR_fchownat		(TARGET_NR_Linux + 291)
+#define TARGET_NR_futimesat		(TARGET_NR_Linux + 292)
+#define TARGET_NR_fstatat64		(TARGET_NR_Linux + 293)
+#define TARGET_NR_unlinkat		(TARGET_NR_Linux + 294)
+#define TARGET_NR_renameat		(TARGET_NR_Linux + 295)
+#define TARGET_NR_linkat		(TARGET_NR_Linux + 296)
+#define TARGET_NR_symlinkat		(TARGET_NR_Linux + 297)
+#define TARGET_NR_readlinkat		(TARGET_NR_Linux + 298)
+#define TARGET_NR_fchmodat		(TARGET_NR_Linux + 299)
+#define TARGET_NR_faccessat		(TARGET_NR_Linux + 300)
+#define TARGET_NR_pselect6		(TARGET_NR_Linux + 301)
+#define TARGET_NR_ppoll			(TARGET_NR_Linux + 302)
+#define TARGET_NR_unshare		(TARGET_NR_Linux + 303)
+#define TARGET_NR_splice		(TARGET_NR_Linux + 304)
+#define TARGET_NR_sync_file_range	(TARGET_NR_Linux + 305)
+#define TARGET_NR_tee			(TARGET_NR_Linux + 306)
+#define TARGET_NR_vmsplice		(TARGET_NR_Linux + 307)
+#define TARGET_NR_move_pages		(TARGET_NR_Linux + 308)
+#define TARGET_NR_set_robust_list	(TARGET_NR_Linux + 309)
+#define TARGET_NR_get_robust_list	(TARGET_NR_Linux + 310)
+#define TARGET_NR_kexec_load		(TARGET_NR_Linux + 311)
+#define TARGET_NR_getcpu		(TARGET_NR_Linux + 312)
+#define TARGET_NR_epoll_pwait		(TARGET_NR_Linux + 313)
+#define TARGET_NR_ioprio_set		(TARGET_NR_Linux + 314)
+#define TARGET_NR_ioprio_get		(TARGET_NR_Linux + 315)
+#define TARGET_NR_utimensat		(TARGET_NR_Linux + 316)
+#define TARGET_NR_signalfd		(TARGET_NR_Linux + 317)
+#define TARGET_NR_timerfd		(TARGET_NR_Linux + 318)
+#define TARGET_NR_eventfd		(TARGET_NR_Linux + 319)
+#define TARGET_NR_fallocate		(TARGET_NR_Linux + 320)
+#define TARGET_NR_timerfd_create	(TARGET_NR_Linux + 321)
+#define TARGET_NR_timerfd_gettime	(TARGET_NR_Linux + 322)
+#define TARGET_NR_timerfd_settime	(TARGET_NR_Linux + 323)
+#define TARGET_NR_signalfd4		(TARGET_NR_Linux + 324)
+#define TARGET_NR_eventfd2		(TARGET_NR_Linux + 325)
+#define TARGET_NR_epoll_create1	(TARGET_NR_Linux + 326)
+#define TARGET_NR_dup3			(TARGET_NR_Linux + 327)
+#define TARGET_NR_pipe2		(TARGET_NR_Linux + 328)
+#define TARGET_NR_inotify_init1	(TARGET_NR_Linux + 329)
+#define TARGET_NR_preadv                (TARGET_NR_Linux + 330)
+#define TARGET_NR_pwritev               (TARGET_NR_Linux + 331)
+#define TARGET_NR_rt_tgsigqueueinfo     (TARGET_NR_Linux + 332)
+#define TARGET_NR_perf_event_open       (TARGET_NR_Linux + 333)
+#define TARGET_NR_accept4               (TARGET_NR_Linux + 334)
+#define TARGET_NR_recvmmsg              (TARGET_NR_Linux + 335)
+#define TARGET_NR_fanotify_init         (TARGET_NR_Linux + 336)
+#define TARGET_NR_fanotify_mark         (TARGET_NR_Linux + 337)
+#define TARGET_NR_prlimit64             (TARGET_NR_Linux + 338)
+#define TARGET_NR_name_to_handle_at     (TARGET_NR_Linux + 339)
+#define TARGET_NR_open_by_handle_at     (TARGET_NR_Linux + 340)
+#define TARGET_NR_clock_adjtime         (TARGET_NR_Linux + 341)
+#define TARGET_NR_syncfs                (TARGET_NR_Linux + 342)
+#define TARGET_NR_sendmmsg              (TARGET_NR_Linux + 343)
+#define TARGET_NR_setns                 (TARGET_NR_Linux + 344)
+#define TARGET_NR_process_vm_readv      (TARGET_NR_Linux + 345)
+#define TARGET_NR_process_vm_writev     (TARGET_NR_Linux + 346)
+#define TARGET_NR_kcmp                  (TARGET_NR_Linux + 347)
+#define TARGET_NR_finit_module          (TARGET_NR_Linux + 348)
+
+#define TARGET_NR_sched_setattr         (TARGET_NR_Linux + 349)
+#define TARGET_NR_sched_getattr         (TARGET_NR_Linux + 350)
+#define TARGET_NR_renameat2             (TARGET_NR_Linux + 351)
+#define TARGET_NR_seccomp               (TARGET_NR_Linux + 352)
+#define TARGET_NR_getrandom             (TARGET_NR_Linux + 353)
+#define TARGET_NR_memfd_create          (TARGET_NR_Linux + 354)
+#define TARGET_NR_bpf                   (TARGET_NR_Linux + 355)
+#define TARGET_NR_execveat              (TARGET_NR_Linux + 356)
+#define TARGET_NR_userfaultfd           (TARGET_NR_Linux + 357)
+#define TARGET_NR_membarrier            (TARGET_NR_Linux + 358)
+#define TARGET_NR_mlock2                (TARGET_NR_Linux + 359)
+#define TARGET_NR_copy_file_range       (TARGET_NR_Linux + 360)
+#define TARGET_NR_preadv2               (TARGET_NR_Linux + 361)
+#define TARGET_NR_pwritev2              (TARGET_NR_Linux + 362)
+#define TARGET_NR_pkey_mprotect         (TARGET_NR_Linux + 363)
+#define TARGET_NR_pkey_alloc            (TARGET_NR_Linux + 364)
+#define TARGET_NR_pkey_free             (TARGET_NR_Linux + 365)
+#define TARGET_NR_statx                 (TARGET_NR_Linux + 366)
+#define TARGET_NR_rseq                  (TARGET_NR_Linux + 367)
+#define TARGET_NR_io_pgetevents         (TARGET_NR_Linux + 368)