📄 scall64-n32.s
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/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1995, 96, 97, 98, 99, 2000, 01 by Ralf Baechle * Copyright (C) 1999, 2000 Silicon Graphics, Inc. * Copyright (C) 2001 MIPS Technologies, Inc. */#include <linux/errno.h>#include <asm/asm.h>#include <asm/asmmacro.h>#include <asm/irqflags.h>#include <asm/mipsregs.h>#include <asm/regdef.h>#include <asm/stackframe.h>#include <asm/thread_info.h>#include <asm/unistd.h>/* This duplicates the definition from <linux/sched.h> */#define PT_TRACESYS 0x00000002 /* tracing system calls *//* This duplicates the definition from <asm/signal.h> */#define SIGILL 4 /* Illegal instruction (ANSI). */#ifndef CONFIG_MIPS32_O32/* No O32, so define handle_sys here */#define handle_sysn32 handle_sys#endif .align 5NESTED(handle_sysn32, PT_SIZE, sp)#ifndef CONFIG_MIPS32_O32 .set noat SAVE_SOME TRACE_IRQS_ON_RELOAD STI .set at#endif dsubu t0, v0, __NR_N32_Linux # check syscall number sltiu t0, t0, __NR_N32_Linux_syscalls + 1#ifndef CONFIG_MIPS32_O32 ld t1, PT_EPC(sp) # skip syscall on return daddiu t1, 4 # skip to next instruction sd t1, PT_EPC(sp)#endif beqz t0, not_n32_scall dsll t0, v0, 3 # offset into table ld t2, (sysn32_call_table - (__NR_N32_Linux * 8))(t0) sd a3, PT_R26(sp) # save a3 for syscall restarting li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? and t0, t1, t0 bnez t0, n32_syscall_trace_entry jalr t2 # Do The Real Thing (TM) li t0, -EMAXERRNO - 1 # error? sltu t0, t0, v0 sd t0, PT_R7(sp) # set error flag beqz t0, 1f dnegu v0 # error sd v0, PT_R0(sp) # set flag for syscall restarting1: sd v0, PT_R2(sp) # result local_irq_disable # make sure need_resched and # signals dont change between # sampling and return LONG_L a2, TI_FLAGS($28) # current->work li t0, _TIF_ALLWORK_MASK and t0, a2, t0 bnez t0, n32_syscall_exit_work j restore_partialn32_syscall_exit_work: j syscall_exit_work_partial/* ------------------------------------------------------------------------ */n32_syscall_trace_entry: SAVE_STATIC move s0, t2 move a0, sp li a1, 0 jal do_syscall_trace move t0, s0 RESTORE_STATIC ld a0, PT_R4(sp) # Restore argument registers ld a1, PT_R5(sp) ld a2, PT_R6(sp) ld a3, PT_R7(sp) ld a4, PT_R8(sp) ld a5, PT_R9(sp) jalr t0 li t0, -EMAXERRNO - 1 # error? sltu t0, t0, v0 sd t0, PT_R7(sp) # set error flag beqz t0, 1f dnegu v0 # error sd v0, PT_R0(sp) # set flag for syscall restarting1: sd v0, PT_R2(sp) # result j syscall_exitnot_n32_scall: /* This is not an n32 compatibility syscall, pass it on to the n64 syscall handlers. */ j handle_sys64 END(handle_sysn32)EXPORT(sysn32_call_table) PTR sys_read /* 6000 */ PTR sys_write PTR sys_open PTR sys_close PTR sys_newstat PTR sys_newfstat /* 6005 */ PTR sys_newlstat PTR sys_poll PTR sys_lseek PTR old_mmap PTR sys_mprotect /* 6010 */ PTR sys_munmap PTR sys_brk PTR sys32_rt_sigaction PTR sys32_rt_sigprocmask PTR compat_sys_ioctl /* 6015 */ PTR sys_pread64 PTR sys_pwrite64 PTR compat_sys_readv PTR compat_sys_writev PTR sys_access /* 6020 */ PTR sys_pipe PTR compat_sys_select PTR sys_sched_yield PTR sys_mremap PTR sys_msync /* 6025 */ PTR sys_mincore PTR sys_madvise PTR sys_shmget PTR sys_shmat PTR compat_sys_shmctl /* 6030 */ PTR sys_dup PTR sys_dup2 PTR sys_pause PTR compat_sys_nanosleep PTR compat_sys_getitimer /* 6035 */ PTR compat_sys_setitimer PTR sys_alarm PTR sys_getpid PTR sys32_sendfile PTR sys_socket /* 6040 */ PTR sys_connect PTR sys_accept PTR sys_sendto PTR sys_recvfrom PTR compat_sys_sendmsg /* 6045 */ PTR compat_sys_recvmsg PTR sys_shutdown PTR sys_bind PTR sys_listen PTR sys_getsockname /* 6050 */ PTR sys_getpeername PTR sys_socketpair PTR compat_sys_setsockopt PTR sys_getsockopt PTR sys_clone /* 6055 */ PTR sys_fork PTR sys32_execve PTR sys_exit PTR compat_sys_wait4 PTR sys_kill /* 6060 */ PTR sys32_newuname PTR sys_semget PTR sys_semop PTR sysn32_semctl PTR sys_shmdt /* 6065 */ PTR sys_msgget PTR sysn32_msgsnd PTR sysn32_msgrcv PTR compat_sys_msgctl PTR compat_sys_fcntl /* 6070 */ PTR sys_flock PTR sys_fsync PTR sys_fdatasync PTR sys_truncate PTR sys_ftruncate /* 6075 */ PTR compat_sys_getdents PTR sys_getcwd PTR sys_chdir PTR sys_fchdir PTR sys_rename /* 6080 */ PTR sys_mkdir PTR sys_rmdir PTR sys_creat PTR sys_link PTR sys_unlink /* 6085 */ PTR sys_symlink PTR sys_readlink PTR sys_chmod PTR sys_fchmod PTR sys_chown /* 6090 */ PTR sys_fchown PTR sys_lchown PTR sys_umask PTR sys32_gettimeofday PTR compat_sys_getrlimit /* 6095 */ PTR compat_sys_getrusage PTR compat_sys_sysinfo PTR compat_sys_times PTR sys32_ptrace PTR sys_getuid /* 6100 */ PTR sys_syslog PTR sys_getgid PTR sys_setuid PTR sys_setgid PTR sys_geteuid /* 6105 */ PTR sys_getegid PTR sys_setpgid PTR sys_getppid PTR sys_getpgrp PTR sys_setsid /* 6110 */ PTR sys_setreuid PTR sys_setregid PTR sys_getgroups PTR sys_setgroups PTR sys_setresuid /* 6115 */ PTR sys_getresuid PTR sys_setresgid PTR sys_getresgid PTR sys_getpgid PTR sys_setfsuid /* 6120 */ PTR sys_setfsgid PTR sys_getsid PTR sys_capget PTR sys_capset PTR sys32_rt_sigpending /* 6125 */ PTR compat_sys_rt_sigtimedwait PTR sys32_rt_sigqueueinfo PTR sysn32_rt_sigsuspend PTR sys32_sigaltstack PTR compat_sys_utime /* 6130 */ PTR sys_mknod PTR sys32_personality PTR sys32_ustat PTR compat_sys_statfs PTR compat_sys_fstatfs /* 6135 */ PTR sys_sysfs PTR sys_getpriority PTR sys_setpriority PTR sys_sched_setparam PTR sys_sched_getparam /* 6140 */ PTR sys_sched_setscheduler PTR sys_sched_getscheduler PTR sys_sched_get_priority_max PTR sys_sched_get_priority_min PTR sys32_sched_rr_get_interval /* 6145 */ PTR sys_mlock PTR sys_munlock PTR sys_mlockall PTR sys_munlockall PTR sys_vhangup /* 6150 */ PTR sys_pivot_root PTR sys32_sysctl PTR sys_prctl PTR compat_sys_adjtimex PTR compat_sys_setrlimit /* 6155 */ PTR sys_chroot PTR sys_sync PTR sys_acct PTR sys32_settimeofday PTR compat_sys_mount /* 6160 */ PTR sys_umount PTR sys_swapon PTR sys_swapoff PTR sys_reboot PTR sys_sethostname /* 6165 */ PTR sys_setdomainname PTR sys_ni_syscall /* was create_module */ PTR sys_init_module PTR sys_delete_module PTR sys_ni_syscall /* 6170, was get_kernel_syms */ PTR sys_ni_syscall /* was query_module */ PTR sys_quotactl PTR compat_sys_nfsservctl PTR sys_ni_syscall /* res. for getpmsg */ PTR sys_ni_syscall /* 6175 for putpmsg */ PTR sys_ni_syscall /* res. for afs_syscall */ PTR sys_ni_syscall /* res. for security */ PTR sys_gettid PTR sys_readahead PTR sys_setxattr /* 6180 */ PTR sys_lsetxattr PTR sys_fsetxattr PTR sys_getxattr PTR sys_lgetxattr PTR sys_fgetxattr /* 6185 */ PTR sys_listxattr PTR sys_llistxattr PTR sys_flistxattr PTR sys_removexattr PTR sys_lremovexattr /* 6190 */ PTR sys_fremovexattr PTR sys_tkill PTR sys_ni_syscall PTR compat_sys_futex PTR compat_sys_sched_setaffinity /* 6195 */ PTR compat_sys_sched_getaffinity PTR sys_cacheflush PTR sys_cachectl PTR sys_sysmips PTR sys_io_setup /* 6200 */ PTR sys_io_destroy PTR sys_io_getevents PTR sys_io_submit PTR sys_io_cancel PTR sys_exit_group /* 6205 */ PTR sys_lookup_dcookie PTR sys_epoll_create PTR sys_epoll_ctl PTR sys_epoll_wait PTR sys_remap_file_pages /* 6210 */ PTR sysn32_rt_sigreturn PTR compat_sys_fcntl64 PTR sys_set_tid_address PTR sys_restart_syscall PTR compat_sys_semtimedop /* 6215 */ PTR sys_fadvise64_64 PTR compat_sys_statfs64 PTR compat_sys_fstatfs64 PTR sys_sendfile64 PTR compat_sys_timer_create /* 6220 */ PTR compat_sys_timer_settime PTR compat_sys_timer_gettime PTR sys_timer_getoverrun PTR sys_timer_delete PTR compat_sys_clock_settime /* 6225 */ PTR compat_sys_clock_gettime PTR compat_sys_clock_getres PTR compat_sys_clock_nanosleep PTR sys_tgkill PTR compat_sys_utimes /* 6230 */ PTR sys_ni_syscall /* sys_mbind */ PTR sys_ni_syscall /* sys_get_mempolicy */ PTR sys_ni_syscall /* sys_set_mempolicy */ PTR compat_sys_mq_open PTR sys_mq_unlink /* 6235 */ PTR compat_sys_mq_timedsend PTR compat_sys_mq_timedreceive PTR compat_sys_mq_notify PTR compat_sys_mq_getsetattr PTR sys_ni_syscall /* 6240, sys_vserver */ PTR compat_sys_waitid PTR sys_ni_syscall /* available, was setaltroot */ PTR sys_add_key PTR sys_request_key PTR sys_keyctl /* 6245 */ PTR sys_set_thread_area PTR sys_inotify_init PTR sys_inotify_add_watch PTR sys_inotify_rm_watch PTR sys_migrate_pages /* 6250 */ PTR sys_openat PTR sys_mkdirat PTR sys_mknodat PTR sys_fchownat PTR compat_sys_futimesat /* 6255 */ PTR sys_newfstatat PTR sys_unlinkat PTR sys_renameat PTR sys_linkat PTR sys_symlinkat /* 6260 */ PTR sys_readlinkat PTR sys_fchmodat PTR sys_faccessat PTR compat_sys_pselect6 PTR sys_ppoll /* 6265 */ PTR sys_unshare PTR sys_splice PTR sys_sync_file_range PTR sys_tee PTR sys_vmsplice /* 6270 */ PTR sys_move_pages PTR compat_sys_set_robust_list PTR compat_sys_get_robust_list PTR compat_sys_kexec_load PTR sys_getcpu /* 6275 */ PTR compat_sys_epoll_pwait PTR sys_ioprio_set PTR sys_ioprio_get PTR compat_sys_utimensat PTR compat_sys_signalfd /* 5280 */ PTR compat_sys_timerfd PTR sys_eventfd PTR sys_fallocate .size sysn32_call_table,.-sysn32_call_table⌨️ 快捷键说明
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