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Diffstat (limited to 'qtmips_osemu/ossyscall.cpp')
| -rw-r--r-- | qtmips_osemu/ossyscall.cpp | 520 |
1 files changed, 520 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; +} |