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|
// 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, do_sys_write)
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, do_sys_brk) /* 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, do_sys_writev)
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, do_sys_mmap2) /* 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, do_sys_set_thread_area)
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);
OsSyscallExceptionHandler::OsSyscallExceptionHandler() {
brk_limit = 0;
anonymous_base = 0x60000000;
anonymous_last = anonymous_base;
}
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();
(void)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)core; (void)syscall_num;
(void)a1; (void)a2; (void)a3; (void)a4; (void)a5; (void)a6; (void)a7; (void)a8;
result = 0;
return 0;
}
int OsSyscallExceptionHandler::do_sys_set_thread_area(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) {
(void)core; (void)syscall_num;
(void)a1; (void)a2; (void)a3; (void)a4; (void)a5; (void)a6; (void)a7; (void)a8;
core->set_c0_userlocal(a1);
result = 0;
return 0;
}
// ssize_t writev(int fd, const struct iovec *iov, int iovcnt);
int OsSyscallExceptionHandler::do_sys_writev(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) {
(void)core; (void)syscall_num;
(void)a1; (void)a2; (void)a3; (void)a4; (void)a5; (void)a6; (void)a7; (void)a8;
result = 0;
int fd = a1;
std::uint32_t iov = a2;
int iovcnt = a3;
MemoryAccess *mem = core->get_mem_data();
printf("sys_writev to fd %d\n", fd);
while (iovcnt-- > 0) {
std::uint32_t iov_base = mem->read_word(iov);
std::uint32_t iov_len = mem->read_word(iov + 4);
iov += 8;
for (std::uint32_t i = 0; i < iov_len; i++) {
int ch = mem->read_byte(iov_base++);
printf("%c", ch);
emit char_written(fd, ch);
}
result += iov_len;
}
return 0;
}
// ssize_t write(int fd, const void *buf, size_t count);
int OsSyscallExceptionHandler::do_sys_write(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) {
(void)core; (void)syscall_num;
(void)a1; (void)a2; (void)a3; (void)a4; (void)a5; (void)a6; (void)a7; (void)a8;
result = 0;
int fd = a1;
std::uint32_t buf = a2;
int size = a3;
MemoryAccess *mem = core->get_mem_data();
printf("sys_write to fd %d\n", fd);
result += size;
while (size-- > 0) {
int ch = mem->read_byte(buf++);
printf("%c", ch);
emit char_written(fd, ch);
}
return 0;
}
// int or void * brk(void *addr);
int OsSyscallExceptionHandler::do_sys_brk(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) {
(void)core; (void)syscall_num;
(void)a1; (void)a2; (void)a3; (void)a4; (void)a5; (void)a6; (void)a7; (void)a8;
result = 0;
std::uint32_t new_limit = a1;
brk_limit = new_limit;
result = brk_limit;
return 0;
}
#define TARGET_SYSCALL_MMAP2_UNIT 4096ULL
#define TARGET_MAP_ANONYMOUS 0x20
// void *mmap2(void *addr, size_t length, int prot,
// int flags, int fd, off_t pgoffset);
int OsSyscallExceptionHandler::do_sys_mmap2(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) {
(void)core; (void)syscall_num;
(void)a1; (void)a2; (void)a3; (void)a4; (void)a5; (void)a6; (void)a7; (void)a8;
result = 0;
std::uint32_t addr = a1;
std::uint32_t lenght = a2;
std::uint32_t prot = a3;
std::uint32_t flags = a4;
std::uint32_t fd = a5;
std::uint64_t offset = a6 * TARGET_SYSCALL_MMAP2_UNIT;
printf("sys_mmap2 addr = 0x%08lx lenght= 0x%08lx prot = 0x%08lx flags = 0x%08lx fd = %d offset = 0x%08llx\n",
(unsigned long)addr, (unsigned long)lenght, (unsigned long)prot,
(unsigned long)flags, (int)fd, (unsigned long long) offset);
lenght = (lenght + TARGET_MAP_ANONYMOUS - 1) & ~(TARGET_MAP_ANONYMOUS - 1);
anonymous_last = (anonymous_last + TARGET_MAP_ANONYMOUS - 1) &
~(TARGET_MAP_ANONYMOUS - 1);
result = anonymous_last;
anonymous_last += lenght;
return 0;
}
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