CRIS v32: Update entry.S to working order.
- Remove oldset parameter. - Utilise delay-slot for parameter moving. - Add kernel_execve as break 13. - Add new kernel syscalls.
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@ -10,7 +10,7 @@
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* after a timer-interrupt and after each system call.
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*
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* Stack layout in 'ret_from_system_call':
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* ptrace needs to have all regs on the stack.
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* ptrace needs to have all regs on the stack.
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* if the order here is changed, it needs to be
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* updated in fork.c:copy_process, signal.c:do_signal,
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* ptrace.c and ptrace.h
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@ -281,12 +281,10 @@ _work_notifysig:
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;; Deal with pending signals and notify-resume requests.
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addoq +TI_flags, $r0, $acr
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move.d [$acr], $r13 ; The thread_info_flags parameter.
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move.d $r9, $r10 ; do_notify_resume syscall/irq param.
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moveq 0, $r11 ; oldset param - 0 in this case.
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move.d $sp, $r12 ; The regs param.
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move.d [$acr], $r12 ; The thread_info_flags parameter.
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move.d $sp, $r11 ; The regs param.
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jsr do_notify_resume
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nop
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move.d $r9, $r10 ; do_notify_resume syscall/irq param.
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ba _Rexit
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nop
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@ -396,7 +394,7 @@ nmi_interrupt:
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btstq REG_BIT(intr_vect, r_nmi, watchdog), $r0
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bpl 1f
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nop
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jsr handle_watchdog_bite ; In time.c.
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jsr handle_watchdog_bite ; In time.c.
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move.d $sp, $r10 ; Pointer to registers
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1: btstq REG_BIT(intr_vect, r_nmi, ext), $r0
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bpl 1f
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@ -515,6 +513,13 @@ _ugdb_handle_exception:
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ba do_sigtrap ; SIGTRAP the offending process.
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move.d [$sp+], $r0 ; Restore R0 in delay slot.
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.global kernel_execve
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kernel_execve:
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move.d __NR_execve, $r9
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break 13
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ret
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nop
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.data
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.section .rodata,"a"
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@ -778,21 +783,21 @@ sys_call_table:
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.long sys_epoll_ctl /* 255 */
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.long sys_epoll_wait
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.long sys_remap_file_pages
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.long sys_set_tid_address
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.long sys_timer_create
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.long sys_timer_settime /* 260 */
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.long sys_timer_gettime
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.long sys_timer_getoverrun
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.long sys_timer_delete
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.long sys_clock_settime
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.long sys_clock_gettime /* 265 */
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.long sys_clock_getres
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.long sys_clock_nanosleep
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.long sys_set_tid_address
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.long sys_timer_create
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.long sys_timer_settime /* 260 */
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.long sys_timer_gettime
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.long sys_timer_getoverrun
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.long sys_timer_delete
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.long sys_clock_settime
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.long sys_clock_gettime /* 265 */
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.long sys_clock_getres
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.long sys_clock_nanosleep
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.long sys_statfs64
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.long sys_fstatfs64
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.long sys_tgkill /* 270 */
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.long sys_utimes
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.long sys_fadvise64_64
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.long sys_fadvise64_64
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.long sys_ni_syscall /* sys_vserver */
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.long sys_ni_syscall /* sys_mbind */
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.long sys_ni_syscall /* 275 sys_get_mempolicy */
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@ -805,6 +810,46 @@ sys_call_table:
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.long sys_mq_getsetattr
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.long sys_ni_syscall /* reserved for kexec */
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.long sys_waitid
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.long sys_ni_syscall /* 285 */ /* available */
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.long sys_add_key
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.long sys_request_key
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.long sys_keyctl
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.long sys_ioprio_set
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.long sys_ioprio_get /* 290 */
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.long sys_inotify_init
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.long sys_inotify_add_watch
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.long sys_inotify_rm_watch
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.long sys_migrate_pages
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.long sys_openat /* 295 */
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.long sys_mkdirat
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.long sys_mknodat
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.long sys_fchownat
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.long sys_futimesat
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.long sys_fstatat64 /* 300 */
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.long sys_unlinkat
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.long sys_renameat
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.long sys_linkat
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.long sys_symlinkat
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.long sys_readlinkat /* 305 */
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.long sys_fchmodat
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.long sys_faccessat
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.long sys_pselect6
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.long sys_ppoll
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.long sys_unshare /* 310 */
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.long sys_set_robust_list
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.long sys_get_robust_list
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.long sys_splice
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.long sys_sync_file_range
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.long sys_tee /* 315 */
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.long sys_vmsplice
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.long sys_move_pages
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.long sys_getcpu
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.long sys_epoll_pwait
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.long sys_utimensat /* 320 */
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.long sys_signalfd
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.long sys_timerfd
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.long sys_eventfd
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.long sys_fallocate
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/*
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* NOTE!! This doesn't have to be exact - we just have
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