diff options
Diffstat (limited to 'arch/mips/kernel/scall64-n32.S')
| -rw-r--r-- | arch/mips/kernel/scall64-n32.S | 214 |
1 files changed, 138 insertions, 76 deletions
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index e52049c87bc..c1dbcda4b81 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -7,38 +7,33 @@ * Copyright (C) 1999, 2000 Silicon Graphics, Inc. * Copyright (C) 2001 MIPS Technologies, Inc. */ -#include <linux/config.h> #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 5 + .align 5 NESTED(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 + sltiu t0, t0, __NR_N32_Linux_syscalls + 1 #ifndef CONFIG_MIPS32_O32 ld t1, PT_EPC(sp) # skip syscall on return @@ -52,7 +47,7 @@ NESTED(handle_sysn32, PT_SIZE, sp) sd a3, PT_R26(sp) # save a3 for syscall restarting - li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT + li t1, _TIF_WORK_SYSCALL_ENTRY LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? and t0, t1, t0 bnez t0, n32_syscall_trace_entry @@ -64,22 +59,12 @@ NESTED(handle_sysn32, PT_SIZE, sp) sd t0, PT_R7(sp) # set error flag beqz t0, 1f + ld t1, PT_R2(sp) # syscall number dnegu v0 # error - sd v0, PT_R0(sp) # set flag for syscall restarting + sd t1, PT_R0(sp) # save it for syscall restarting 1: 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_partial - -n32_syscall_exit_work: - j syscall_exit_work_partial + j syscall_exit_partial /* ------------------------------------------------------------------------ */ @@ -87,27 +72,32 @@ n32_syscall_trace_entry: SAVE_STATIC move s0, t2 move a0, sp - li a1, 0 - jal do_syscall_trace + daddiu a1, v0, __NR_N32_Linux + jal syscall_trace_enter + + bltz v0, 2f # seccomp failed? Skip syscall + 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 s0 + jalr t0 li t0, -EMAXERRNO - 1 # error? sltu t0, t0, v0 sd t0, PT_R7(sp) # set error flag beqz t0, 1f + ld t1, PT_R2(sp) # syscall number dnegu v0 # error - sd v0, PT_R0(sp) # set flag for syscall restarting + sd t1, PT_R0(sp) # save it for syscall restarting 1: sd v0, PT_R2(sp) # result - j syscall_exit +2: j syscall_exit not_n32_scall: /* This is not an n32 compatibility syscall, pass it on to @@ -116,6 +106,7 @@ not_n32_scall: END(handle_sysn32) + .type sysn32_call_table, @object EXPORT(sysn32_call_table) PTR sys_read /* 6000 */ PTR sys_write @@ -126,19 +117,19 @@ EXPORT(sysn32_call_table) PTR sys_newlstat PTR sys_poll PTR sys_lseek - PTR old_mmap + PTR sys_mips_mmap PTR sys_mprotect /* 6010 */ PTR sys_munmap PTR sys_brk - PTR sys32_rt_sigaction - PTR sys32_rt_sigprocmask + PTR compat_sys_rt_sigaction + PTR compat_sys_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 sysm_pipe PTR compat_sys_select PTR sys_sched_yield PTR sys_mremap @@ -146,8 +137,8 @@ EXPORT(sysn32_call_table) PTR sys_mincore PTR sys_madvise PTR sys_shmget - PTR sys32_shmat - PTR sys_shmctl /* 6030 */ + PTR sys_shmat + PTR compat_sys_shmctl /* 6030 */ PTR sys_dup PTR sys_dup2 PTR sys_pause @@ -156,12 +147,12 @@ EXPORT(sysn32_call_table) PTR compat_sys_setitimer PTR sys_alarm PTR sys_getpid - PTR sys32_sendfile + PTR compat_sys_sendfile PTR sys_socket /* 6040 */ PTR sys_connect PTR sys_accept PTR sys_sendto - PTR sys_recvfrom + PTR compat_sys_recvfrom PTR compat_sys_sendmsg /* 6045 */ PTR compat_sys_recvmsg PTR sys_shutdown @@ -172,28 +163,28 @@ EXPORT(sysn32_call_table) PTR sys_socketpair PTR compat_sys_setsockopt PTR sys_getsockopt - PTR sys_clone /* 6055 */ - PTR sys_fork - PTR sys32_execve + PTR __sys_clone /* 6055 */ + PTR __sys_fork + PTR compat_sys_execve PTR sys_exit - PTR sys32_wait4 + PTR compat_sys_wait4 PTR sys_kill /* 6060 */ - PTR sys32_newuname + PTR sys_newuname PTR sys_semget PTR sys_semop - PTR sys_semctl + PTR compat_sys_semctl PTR sys_shmdt /* 6065 */ PTR sys_msgget - PTR sys_msgsnd - PTR sys_msgrcv - PTR sys_msgctl + PTR compat_sys_msgsnd + PTR compat_sys_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 sys32_getdents + PTR compat_sys_getdents PTR sys_getcwd PTR sys_chdir PTR sys_fchdir @@ -211,12 +202,12 @@ EXPORT(sysn32_call_table) PTR sys_fchown PTR sys_lchown PTR sys_umask - PTR sys32_gettimeofday + PTR compat_sys_gettimeofday PTR compat_sys_getrlimit /* 6095 */ PTR compat_sys_getrusage - PTR sys32_sysinfo + PTR compat_sys_sysinfo PTR compat_sys_times - PTR sys_ptrace + PTR compat_sys_ptrace PTR sys_getuid /* 6100 */ PTR sys_syslog PTR sys_getgid @@ -242,15 +233,15 @@ EXPORT(sysn32_call_table) PTR sys_getsid PTR sys_capget PTR sys_capset - PTR sys32_rt_sigpending /* 6125 */ + PTR compat_sys_rt_sigpending /* 6125 */ PTR compat_sys_rt_sigtimedwait - PTR sys32_rt_sigqueueinfo - PTR sys32_rt_sigsuspend - PTR sys32_sigaltstack + PTR compat_sys_rt_sigqueueinfo + PTR compat_sys_rt_sigsuspend + PTR compat_sys_sigaltstack PTR compat_sys_utime /* 6130 */ PTR sys_mknod - PTR sys32_personality - PTR sys_ustat + PTR sys_32_personality + PTR compat_sys_ustat PTR compat_sys_statfs PTR compat_sys_fstatfs /* 6135 */ PTR sys_sysfs @@ -262,22 +253,22 @@ EXPORT(sysn32_call_table) PTR sys_sched_getscheduler PTR sys_sched_get_priority_max PTR sys_sched_get_priority_min - PTR sys32_sched_rr_get_interval /* 6145 */ + PTR compat_sys_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 compat_sys_sysctl PTR sys_prctl - PTR sys32_adjtimex + PTR compat_sys_adjtimex PTR compat_sys_setrlimit /* 6155 */ PTR sys_chroot PTR sys_sync PTR sys_acct - PTR sys32_settimeofday - PTR sys_mount /* 6160 */ + PTR compat_sys_settimeofday + PTR compat_sys_mount /* 6160 */ PTR sys_umount PTR sys_swapon PTR sys_swapoff @@ -290,13 +281,13 @@ EXPORT(sysn32_call_table) PTR sys_ni_syscall /* 6170, was get_kernel_syms */ PTR sys_ni_syscall /* was query_module */ PTR sys_quotactl - PTR sys_nfsservctl + PTR sys_ni_syscall /* was nfsservctl */ PTR sys_ni_syscall /* res. for getpmsg */ - PTR sys_ni_syscall /* 6175 for putpmsg */ + 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 sys32_readahead + PTR sys_readahead PTR sys_setxattr /* 6180 */ PTR sys_lsetxattr PTR sys_fsetxattr @@ -317,10 +308,10 @@ EXPORT(sysn32_call_table) PTR sys_cacheflush PTR sys_cachectl PTR sys_sysmips - PTR sys_io_setup /* 6200 */ + PTR compat_sys_io_setup /* 6200 */ PTR sys_io_destroy - PTR sys_io_getevents - PTR sys_io_submit + PTR compat_sys_io_getevents + PTR compat_sys_io_submit PTR sys_io_cancel PTR sys_exit_group /* 6205 */ PTR sys_lookup_dcookie @@ -329,23 +320,23 @@ EXPORT(sysn32_call_table) PTR sys_epoll_wait PTR sys_remap_file_pages /* 6210 */ PTR sysn32_rt_sigreturn - PTR sys_fcntl + PTR compat_sys_fcntl64 PTR sys_set_tid_address PTR sys_restart_syscall - PTR sys_semtimedop /* 6215 */ + PTR compat_sys_semtimedop /* 6215 */ PTR sys_fadvise64_64 PTR compat_sys_statfs64 PTR compat_sys_fstatfs64 PTR sys_sendfile64 - PTR sys_timer_create /* 6220 */ - PTR sys_timer_settime - PTR sys_timer_gettime + 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 sys_clock_settime /* 6225 */ - PTR sys_clock_gettime - PTR sys_clock_getres - PTR sys_clock_nanosleep + 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 */ @@ -358,8 +349,79 @@ EXPORT(sysn32_call_table) PTR compat_sys_mq_notify PTR compat_sys_mq_getsetattr PTR sys_ni_syscall /* 6240, sys_vserver */ - PTR sys_waitid + 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 compat_sys_ppoll /* 6265 */ + PTR sys_unshare + PTR sys_splice + PTR sys_sync_file_range + PTR sys_tee + PTR compat_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 /* 6280 */ + PTR sys_ni_syscall /* was timerfd */ + PTR sys_eventfd + PTR sys_fallocate + PTR sys_timerfd_create + PTR compat_sys_timerfd_gettime /* 6285 */ + PTR compat_sys_timerfd_settime + PTR compat_sys_signalfd4 + PTR sys_eventfd2 + PTR sys_epoll_create1 + PTR sys_dup3 /* 6290 */ + PTR sys_pipe2 + PTR sys_inotify_init1 + PTR compat_sys_preadv + PTR compat_sys_pwritev + PTR compat_sys_rt_tgsigqueueinfo /* 6295 */ + PTR sys_perf_event_open + PTR sys_accept4 + PTR compat_sys_recvmmsg + PTR sys_getdents64 + PTR sys_fanotify_init /* 6300 */ + PTR sys_fanotify_mark + PTR sys_prlimit64 + PTR sys_name_to_handle_at + PTR sys_open_by_handle_at + PTR compat_sys_clock_adjtime /* 6305 */ + PTR sys_syncfs + PTR compat_sys_sendmmsg + PTR sys_setns + PTR compat_sys_process_vm_readv + PTR compat_sys_process_vm_writev /* 6310 */ + PTR sys_kcmp + PTR sys_finit_module + PTR sys_sched_setattr + PTR sys_sched_getattr + PTR sys_renameat2 /* 6315 */ + .size sysn32_call_table,.-sysn32_call_table |