4d672e7ac7
This is the new timerfd API as it is implemented by the following patch:
int timerfd_create(int clockid, int flags);
int timerfd_settime(int ufd, int flags,
const struct itimerspec *utmr,
struct itimerspec *otmr);
int timerfd_gettime(int ufd, struct itimerspec *otmr);
The timerfd_create() API creates an un-programmed timerfd fd. The "clockid"
parameter can be either CLOCK_MONOTONIC or CLOCK_REALTIME.
The timerfd_settime() API give new settings by the timerfd fd, by optionally
retrieving the previous expiration time (in case the "otmr" parameter is not
NULL).
The time value specified in "utmr" is absolute, if the TFD_TIMER_ABSTIME bit
is set in the "flags" parameter. Otherwise it's a relative time.
The timerfd_gettime() API returns the next expiration time of the timer, or
{0, 0} if the timerfd has not been set yet.
Like the previous timerfd API implementation, read(2) and poll(2) are
supported (with the same interface). Here's a simple test program I used to
exercise the new timerfd APIs:
http://www.xmailserver.org/timerfd-test2.c
[akpm@linux-foundation.org: coding-style cleanups]
[akpm@linux-foundation.org: fix ia64 build]
[akpm@linux-foundation.org: fix m68k build]
[akpm@linux-foundation.org: fix mips build]
[akpm@linux-foundation.org: fix alpha, arm, blackfin, cris, m68k, s390, sparc and sparc64 builds]
[heiko.carstens@de.ibm.com: fix s390]
[akpm@linux-foundation.org: fix powerpc build]
[akpm@linux-foundation.org: fix sparc64 more]
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1185 lines
35 KiB
ArmAsm
1185 lines
35 KiB
ArmAsm
/* $Id: entry.S,v 1.28 2005/06/20 05:06:30 starvik Exp $
|
|
*
|
|
* linux/arch/cris/entry.S
|
|
*
|
|
* Copyright (C) 2000, 2001, 2002 Axis Communications AB
|
|
*
|
|
* Authors: Bjorn Wesen (bjornw@axis.com)
|
|
*
|
|
* $Log: entry.S,v $
|
|
* Revision 1.28 2005/06/20 05:06:30 starvik
|
|
* Remove unnecessary diff to kernel.org tree
|
|
*
|
|
* Revision 1.27 2005/03/04 08:16:16 starvik
|
|
* Merge of Linux 2.6.11.
|
|
*
|
|
* Revision 1.26 2005/01/11 13:49:47 starvik
|
|
* Added NMI handler.
|
|
*
|
|
* Revision 1.25 2004/12/27 11:18:32 starvik
|
|
* Merge of Linux 2.6.10 (not functional yet).
|
|
*
|
|
* Revision 1.24 2004/12/22 10:41:23 starvik
|
|
* Updates to make v10 compile with the latest SMP aware generic code (even
|
|
* though v10 will never have SMP).
|
|
*
|
|
* Revision 1.23 2004/10/19 13:07:37 starvik
|
|
* Merge of Linux 2.6.9
|
|
*
|
|
* Revision 1.22 2004/06/21 10:29:55 starvik
|
|
* Merge of Linux 2.6.7
|
|
*
|
|
* Revision 1.21 2004/06/09 05:30:27 starvik
|
|
* Clean up multiple interrupt handling.
|
|
* Prevent interrupts from interrupting each other.
|
|
* Handle all active interrupts.
|
|
*
|
|
* Revision 1.20 2004/06/08 08:55:32 starvik
|
|
* Removed unused code
|
|
*
|
|
* Revision 1.19 2004/06/04 11:56:15 starvik
|
|
* Implemented page table lookup for refills in assembler for improved performance.
|
|
*
|
|
* Revision 1.18 2004/05/11 12:28:25 starvik
|
|
* Merge of Linux 2.6.6
|
|
*
|
|
* Revision 1.17 2003/09/11 07:29:49 starvik
|
|
* Merge of Linux 2.6.0-test5
|
|
*
|
|
* Revision 1.16 2003/07/04 08:27:41 starvik
|
|
* Merge of Linux 2.5.74
|
|
*
|
|
* Revision 1.15 2003/04/09 07:32:55 starvik
|
|
* resume should return task_struct, not thread_info
|
|
*
|
|
* Revision 1.14 2003/04/09 05:20:44 starvik
|
|
* Merge of Linux 2.5.67
|
|
*
|
|
* Revision 1.13 2002/12/11 15:42:02 starvik
|
|
* Extracted v10 (ETRAX 100LX) specific stuff from arch/cris/kernel/*.c
|
|
*
|
|
* Revision 1.12 2002/12/10 09:00:10 starvik
|
|
* Merge of Linux 2.5.51
|
|
*
|
|
* Revision 1.11 2002/12/05 07:53:10 starvik
|
|
* Corrected constants used with btstq
|
|
*
|
|
* Revision 1.10 2002/11/27 08:45:10 starvik
|
|
* pid is in task_struct, not thread_info
|
|
*
|
|
* Revision 1.9 2002/11/26 09:52:05 starvik
|
|
* Added preemptive kernel scheduling (if CONFIG_PREEMPT)
|
|
*
|
|
* Revision 1.8 2002/11/20 11:56:11 starvik
|
|
* Merge of Linux 2.5.48
|
|
*
|
|
* Revision 1.7 2002/11/18 13:02:42 starvik
|
|
* Added fourth parameter to do_notify_resume
|
|
* Minor cleanup
|
|
*
|
|
* Revision 1.6 2002/11/11 10:37:50 starvik
|
|
* Use new asm-offset defines
|
|
* Modified for new location of current->work etc
|
|
* Removed SYMBOL_NAME from syscalls
|
|
* Added some new syscalls
|
|
*
|
|
* Revision 1.5 2002/11/05 06:45:11 starvik
|
|
* Merge of Linux 2.5.45
|
|
*
|
|
* Revision 1.4 2002/02/05 15:41:31 bjornw
|
|
* Rewritten to conform better to current 2.5 code (similar to arch/i386)
|
|
*
|
|
* Revision 1.3 2002/01/21 15:22:20 bjornw
|
|
* NICE_DOGGY fix from 2.4 arch/cris
|
|
*
|
|
* Revision 1.37 2001/12/07 17:03:55 bjornw
|
|
* Call a c-hook called watchdog_bite_hook instead of show_registers directly
|
|
*
|
|
* Revision 1.36 2001/11/22 13:36:36 bjornw
|
|
* * In ret_from_intr, check regs->dccr for usermode reentrance instead of
|
|
* DCCR explicitly (because the latter might not reflect current reality)
|
|
* * In mmu_bus_fault, set $r9 _after_ calling the C-code instead of before
|
|
* since $r9 is call-clobbered and is potentially needed afterwards
|
|
*
|
|
* Revision 1.35 2001/10/30 17:10:15 bjornw
|
|
* Add some syscalls
|
|
*
|
|
* Revision 1.34 2001/10/01 14:45:03 bjornw
|
|
* Removed underscores and added register prefixes
|
|
*
|
|
* Revision 1.33 2001/08/21 13:48:01 jonashg
|
|
* Added fix by HP to avoid oops when doing a hard_reset_now.
|
|
*
|
|
* Revision 1.32 2001/08/14 04:32:02 hp
|
|
* In _resume, add comment why R9 is saved; don't sound like it's call-saved.
|
|
*
|
|
* Revision 1.31 2001/07/25 16:07:42 bjornw
|
|
* softirq_active/mask -> softirq_pending only
|
|
*
|
|
* Revision 1.30 2001/07/05 01:03:32 hp
|
|
* - include asm/errno.h to get ENOSYS.
|
|
* - Use ENOSYS, not local constant LENOSYS; tweak comments.
|
|
* - Explain why .include, not #include is used.
|
|
* - Make oops-register-dump if watchdog bits and it's not expected.
|
|
* - Don't jsr, use jump _hard_reset_now, and skip spurious nop.
|
|
* - Use correct section attribute for section .rodata.
|
|
* - Adjust sys_ni_syscall fill number.
|
|
*
|
|
* Revision 1.29 2001/06/25 14:07:00 hp
|
|
* Fix review comment.
|
|
* * head.S: Use IO_STATE, IO_FIELD and IO_MASK constructs instead of
|
|
* magic numbers. Add comment that -traditional must not be used.
|
|
* * entry.S (SYMBOL_NAME): Change redefinition to use ## concatenation.
|
|
* Correct and update comment.
|
|
* * Makefile (.S.o): Don't use -traditional. Add comment why the
|
|
* toplevel rule can't be used (now that there's a reason).
|
|
*
|
|
* Revision 1.28 2001/06/21 02:00:40 hp
|
|
* * entry.S: Include asm/unistd.h.
|
|
* (_sys_call_table): Use section .rodata, not .data.
|
|
* (_kernel_thread): Move from...
|
|
* * process.c: ... here.
|
|
* * entryoffsets.c (VAL): Break out from...
|
|
* (OF): Use VAL.
|
|
* (LCLONE_VM): New asmified value from CLONE_VM.
|
|
*
|
|
* Revision 1.27 2001/05/29 11:25:27 markusl
|
|
* In case of "spurious_interrupt", do hard_reset instead of hanging system in a loop...
|
|
*
|
|
* Revision 1.26 2001/05/15 15:46:03 bjornw
|
|
* Include config.h now that we use some CONFIG_ options
|
|
*
|
|
* Revision 1.25 2001/05/15 05:38:47 hp
|
|
* Tweaked code in _ret_from_sys_call
|
|
*
|
|
* Revision 1.24 2001/05/15 05:27:49 hp
|
|
* Save r9 in r1 over function call rather than on stack.
|
|
*
|
|
* Revision 1.23 2001/05/15 05:10:00 hp
|
|
* Generate entry.S structure offsets from C
|
|
*
|
|
* Revision 1.22 2001/04/17 13:58:39 orjanf
|
|
* * Renamed CONFIG_KGDB to CONFIG_ETRAX_KGDB.
|
|
*
|
|
* Revision 1.21 2001/04/17 11:33:29 orjanf
|
|
* Updated according to review:
|
|
* * Included asm/sv_addr_ag.h to get macro for internal register.
|
|
* * Corrected comment regarding system call argument passing.
|
|
* * Removed comment about instruction being in a delay slot.
|
|
* * Added comment about SYMBOL_NAME macro.
|
|
*
|
|
* Revision 1.20 2001/04/12 08:51:07 hp
|
|
* - Add entry for sys_fcntl64. In fact copy last piece from i386 including ...
|
|
* - .rept to fill table to safe state with sys_ni_syscall.
|
|
*
|
|
* Revision 1.19 2001/04/04 09:43:32 orjanf
|
|
* * Moved do_sigtrap from traps.c to entry.S.
|
|
* * LTASK_PID need not be global anymore.
|
|
*
|
|
* Revision 1.18 2001/03/26 09:25:02 markusl
|
|
* Updated after review, should now handle USB interrupts correctly.
|
|
*
|
|
* Revision 1.17 2001/03/21 16:12:55 bjornw
|
|
* * Always make room for the cpu status record in the frame, in order to
|
|
* use the same framelength and layout for both mmu busfaults and normal
|
|
* irqs. No need to check for the explicit CRIS_FRAME_FIXUP type anymore.
|
|
* * Fixed bug with using addq for popping the stack in the epilogue - it
|
|
* destroyed the flag register. Use instructions that don't affect the
|
|
* flag register instead.
|
|
* * Removed write to R_PORT_PA_DATA during spurious_interrupt
|
|
*
|
|
* Revision 1.16 2001/03/20 19:43:02 bjornw
|
|
* * Get rid of esp0 setting
|
|
* * Give a 7th argument to a systemcall - the stackframe
|
|
*
|
|
* Revision 1.15 2001/03/05 13:14:30 bjornw
|
|
* Spelling fix
|
|
*
|
|
* Revision 1.14 2001/02/23 08:36:36 perf
|
|
* New ABI; syscallnr=r9, arg5=mof, arg6=srp.
|
|
* Corrected tracesys call check.
|
|
*
|
|
* Revision 1.13 2001/02/15 08:40:55 perf
|
|
* H-P by way of perf;
|
|
* - (_system_call): Don't read system call function address into r1.
|
|
* - (RBFExit): There is no such thing as a null pop. Adjust sp by addq.
|
|
* - (_system_call): Don't use r10 and don't save and restore it.
|
|
* - (THREAD_ESP0): New constant.
|
|
* - (_system_call): Inline set_esp0.
|
|
*
|
|
* Revision 1.12 2001/01/31 17:56:25 orjanf
|
|
* Added definition of LTASK_PID and made it global.
|
|
*
|
|
* Revision 1.11 2001/01/10 21:13:29 bjornw
|
|
* SYMBOL_NAME is defined incorrectly for the compiler options we currently use
|
|
*
|
|
* Revision 1.10 2000/12/18 23:47:56 bjornw
|
|
* * Added syscall trace support (ptrace), completely untested of course
|
|
* * Removed redundant check for NULL entries in syscall_table
|
|
*
|
|
* Revision 1.9 2000/11/21 16:40:51 bjornw
|
|
* * New frame type used when an SBFS frame needs to be popped without
|
|
* actually restarting the instruction
|
|
* * Enable interrupts in signal_return (they did so in x86, I hope it's a good
|
|
* idea)
|
|
*
|
|
* Revision 1.8 2000/11/17 16:53:35 bjornw
|
|
* Added detection of frame-type in Rexit, so that mmu_bus_fault can
|
|
* use ret_from_intr in the return-path to check for signals (like SEGV)
|
|
* and other foul things that might have occurred during the fault.
|
|
*
|
|
* Revision 1.7 2000/10/06 15:04:28 bjornw
|
|
* Include mof in register savings
|
|
*
|
|
* Revision 1.6 2000/09/12 16:02:44 bjornw
|
|
* Linux-2.4.0-test7 derived updates
|
|
*
|
|
* Revision 1.5 2000/08/17 15:35:15 bjornw
|
|
* 2.4.0-test6 changed local_irq_count and friends API
|
|
*
|
|
* Revision 1.4 2000/08/02 13:59:30 bjornw
|
|
* Removed olduname and uname from the syscall list
|
|
*
|
|
* Revision 1.3 2000/07/31 13:32:58 bjornw
|
|
* * Export ret_from_intr
|
|
* * _resume updated (prev/last tjohejsan)
|
|
* * timer_interrupt obsolete
|
|
* * SIGSEGV detection in mmu_bus_fault temporarily disabled
|
|
*
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* entry.S contains the system-call and fault low-level handling routines.
|
|
*
|
|
* NOTE: This code handles signal-recognition, which happens every time
|
|
* after a timer-interrupt and after each system call.
|
|
*
|
|
* Stack layout in 'ret_from_system_call':
|
|
* ptrace needs to have all regs on the stack.
|
|
* if the order here is changed, it needs to be
|
|
* updated in fork.c:copy_process, signal.c:do_signal,
|
|
* ptrace.c and ptrace.h
|
|
*
|
|
*/
|
|
|
|
#include <linux/linkage.h>
|
|
#include <linux/sys.h>
|
|
#include <asm/unistd.h>
|
|
#include <asm/arch/sv_addr_ag.h>
|
|
#include <asm/errno.h>
|
|
#include <asm/thread_info.h>
|
|
#include <asm/asm-offsets.h>
|
|
#include <asm/page.h>
|
|
#include <asm/pgtable.h>
|
|
|
|
;; functions exported from this file
|
|
|
|
.globl system_call
|
|
.globl ret_from_intr
|
|
.globl ret_from_fork
|
|
.globl resume
|
|
.globl multiple_interrupt
|
|
.globl hwbreakpoint
|
|
.globl IRQ1_interrupt
|
|
.globl spurious_interrupt
|
|
.globl hw_bp_trigs
|
|
.globl mmu_bus_fault
|
|
.globl do_sigtrap
|
|
.globl gdb_handle_breakpoint
|
|
.globl sys_call_table
|
|
|
|
;; below are various parts of system_call which are not in the fast-path
|
|
|
|
#ifdef CONFIG_PREEMPT
|
|
; Check if preemptive kernel scheduling should be done
|
|
_resume_kernel:
|
|
di
|
|
; Load current task struct
|
|
movs.w -8192, $r0 ; THREAD_SIZE = 8192
|
|
and.d $sp, $r0
|
|
move.d [$r0+TI_preempt_count], $r10 ; Preemption disabled?
|
|
bne _Rexit
|
|
nop
|
|
_need_resched:
|
|
move.d [$r0+TI_flags], $r10
|
|
btstq TIF_NEED_RESCHED, $r10 ; Check if need_resched is set
|
|
bpl _Rexit
|
|
nop
|
|
; Ok, lets's do some preemptive kernel scheduling
|
|
jsr preempt_schedule_irq
|
|
; Load new task struct
|
|
movs.w -8192, $r0 ; THREAD_SIZE = 8192
|
|
and.d $sp, $r0
|
|
; One more time (with new task)
|
|
ba _need_resched
|
|
nop
|
|
#else
|
|
#define _resume_kernel _Rexit
|
|
#endif
|
|
|
|
; Called at exit from fork. schedule_tail must be called to drop
|
|
; spinlock if CONFIG_PREEMPT
|
|
ret_from_fork:
|
|
jsr schedule_tail
|
|
ba ret_from_sys_call
|
|
nop
|
|
|
|
ret_from_intr:
|
|
;; check for resched if preemptive kernel or if we're going back to user-mode
|
|
;; this test matches the user_regs(regs) macro
|
|
;; we cannot simply test $dccr, because that does not necessarily
|
|
;; reflect what mode we'll return into.
|
|
|
|
move.d [$sp + PT_dccr], $r0; regs->dccr
|
|
btstq 8, $r0 ; U-flag
|
|
bpl _resume_kernel
|
|
; Note that di below is in delay slot
|
|
|
|
_resume_userspace:
|
|
di ; so need_resched and sigpending don't change
|
|
|
|
movs.w -8192, $r0 ; THREAD_SIZE == 8192
|
|
and.d $sp, $r0
|
|
|
|
move.d [$r0+TI_flags], $r10 ; current->work
|
|
and.d _TIF_WORK_MASK, $r10 ; is there any work to be done on return
|
|
bne _work_pending
|
|
nop
|
|
ba _Rexit
|
|
nop
|
|
|
|
;; The system_call is called by a BREAK instruction, which works like
|
|
;; an interrupt call but it stores the return PC in BRP instead of IRP.
|
|
;; Since we dont really want to have two epilogues (one for system calls
|
|
;; and one for interrupts) we push the contents of BRP instead of IRP in the
|
|
;; system call prologue, to make it look like an ordinary interrupt on the
|
|
;; stackframe.
|
|
;;
|
|
;; Since we can't have system calls inside interrupts, it should not matter
|
|
;; that we don't stack IRP.
|
|
;;
|
|
;; In r9 we have the wanted syscall number. Arguments come in r10,r11,r12,r13,mof,srp
|
|
;;
|
|
;; This function looks on the _surface_ like spaghetti programming, but it's
|
|
;; really designed so that the fast-path does not force cache-loading of non-used
|
|
;; instructions. Only the non-common cases cause the outlined code to run..
|
|
|
|
system_call:
|
|
;; stack-frame similar to the irq heads, which is reversed in ret_from_sys_call
|
|
move $brp,[$sp=$sp-16]; instruction pointer and room for a fake SBFS frame
|
|
push $srp
|
|
push $dccr
|
|
push $mof
|
|
subq 14*4, $sp ; make room for r0-r13
|
|
movem $r13, [$sp] ; push r0-r13
|
|
push $r10 ; push orig_r10
|
|
clear.d [$sp=$sp-4] ; frametype == 0, normal stackframe
|
|
|
|
movs.w -ENOSYS, $r0
|
|
move.d $r0, [$sp+PT_r10] ; put the default return value in r10 in the frame
|
|
|
|
;; check if this process is syscall-traced
|
|
|
|
movs.w -8192, $r0 ; THREAD_SIZE == 8192
|
|
and.d $sp, $r0
|
|
|
|
move.d [$r0+TI_flags], $r0
|
|
btstq TIF_SYSCALL_TRACE, $r0
|
|
bmi _syscall_trace_entry
|
|
nop
|
|
|
|
_syscall_traced:
|
|
|
|
;; check for sanity in the requested syscall number
|
|
|
|
cmpu.w NR_syscalls, $r9
|
|
bcc ret_from_sys_call
|
|
lslq 2, $r9 ; multiply by 4, in the delay slot
|
|
|
|
;; as a bonus 7th parameter, we give the location on the stack
|
|
;; of the register structure itself. some syscalls need this.
|
|
|
|
push $sp
|
|
|
|
;; the parameter carrying registers r10, r11, r12 and 13 are intact.
|
|
;; the fifth and sixth parameters (if any) was in mof and srp
|
|
;; respectively, and we need to put them on the stack.
|
|
|
|
push $srp
|
|
push $mof
|
|
|
|
jsr [$r9+sys_call_table] ; actually do the system call
|
|
addq 3*4, $sp ; pop the mof, srp and regs parameters
|
|
move.d $r10, [$sp+PT_r10] ; save the return value
|
|
|
|
moveq 1, $r9 ; "parameter" to ret_from_sys_call to show it was a sys call
|
|
|
|
;; fall through into ret_from_sys_call to return
|
|
|
|
ret_from_sys_call:
|
|
;; r9 is a parameter - if >=1 we came from a syscall, if 0, from an irq
|
|
|
|
;; get the current task-struct pointer (see top for defs)
|
|
|
|
movs.w -8192, $r0 ; THREAD_SIZE == 8192
|
|
and.d $sp, $r0
|
|
|
|
di ; make sure need_resched and sigpending don't change
|
|
move.d [$r0+TI_flags],$r1
|
|
and.d _TIF_ALLWORK_MASK, $r1
|
|
bne _syscall_exit_work
|
|
nop
|
|
|
|
_Rexit:
|
|
;; this epilogue MUST match the prologues in multiple_interrupt, irq.h and ptregs.h
|
|
pop $r10 ; frametype
|
|
bne _RBFexit ; was not CRIS_FRAME_NORMAL, handle otherwise
|
|
addq 4, $sp ; skip orig_r10, in delayslot
|
|
movem [$sp+], $r13 ; registers r0-r13
|
|
pop $mof ; multiply overflow register
|
|
pop $dccr ; condition codes
|
|
pop $srp ; subroutine return pointer
|
|
;; now we have a 4-word SBFS frame which we do not want to restore
|
|
;; using RBF since it was not stacked with SBFS. instead we would like to
|
|
;; just get the PC value to restart it with, and skip the rest of
|
|
;; the frame.
|
|
;; Also notice that it's important to use instructions here that
|
|
;; keep the interrupts disabled (since we've already popped DCCR)
|
|
move [$sp=$sp+16], $p8; pop the SBFS frame from the sp
|
|
jmpu [$sp-16] ; return through the irp field in the sbfs frame
|
|
|
|
_RBFexit:
|
|
movem [$sp+], $r13 ; registers r0-r13, in delay slot
|
|
pop $mof ; multiply overflow register
|
|
pop $dccr ; condition codes
|
|
pop $srp ; subroutine return pointer
|
|
rbf [$sp+] ; return by popping the CPU status
|
|
|
|
;; We get here after doing a syscall if extra work might need to be done
|
|
;; perform syscall exit tracing if needed
|
|
|
|
_syscall_exit_work:
|
|
;; $r0 contains current at this point and irq's are disabled
|
|
|
|
move.d [$r0+TI_flags], $r1
|
|
btstq TIF_SYSCALL_TRACE, $r1
|
|
bpl _work_pending
|
|
nop
|
|
|
|
ei
|
|
|
|
move.d $r9, $r1 ; preserve r9
|
|
jsr do_syscall_trace
|
|
move.d $r1, $r9
|
|
|
|
ba _resume_userspace
|
|
nop
|
|
|
|
_work_pending:
|
|
move.d [$r0+TI_flags], $r1
|
|
btstq TIF_NEED_RESCHED, $r1
|
|
bpl _work_notifysig ; was neither trace nor sched, must be signal/notify
|
|
nop
|
|
|
|
_work_resched:
|
|
move.d $r9, $r1 ; preserve r9
|
|
jsr schedule
|
|
move.d $r1, $r9
|
|
di
|
|
|
|
move.d [$r0+TI_flags], $r1
|
|
and.d _TIF_WORK_MASK, $r1; ignore the syscall trace counter
|
|
beq _Rexit
|
|
nop
|
|
btstq TIF_NEED_RESCHED, $r1
|
|
bmi _work_resched ; current->work.need_resched
|
|
nop
|
|
|
|
_work_notifysig:
|
|
;; deal with pending signals and notify-resume requests
|
|
|
|
move.d $r9, $r10 ; do_notify_resume syscall/irq param
|
|
move.d $sp, $r11 ; the regs param
|
|
move.d $r1, $r12 ; the thread_info_flags parameter
|
|
jsr do_notify_resume
|
|
|
|
ba _Rexit
|
|
nop
|
|
|
|
;; We get here as a sidetrack when we've entered a syscall with the
|
|
;; trace-bit set. We need to call do_syscall_trace and then continue
|
|
;; with the call.
|
|
|
|
_syscall_trace_entry:
|
|
;; PT_r10 in the frame contains -ENOSYS as required, at this point
|
|
|
|
jsr do_syscall_trace
|
|
|
|
;; now re-enter the syscall code to do the syscall itself
|
|
;; we need to restore $r9 here to contain the wanted syscall, and
|
|
;; the other parameter-bearing registers
|
|
|
|
move.d [$sp+PT_r9], $r9
|
|
move.d [$sp+PT_orig_r10], $r10 ; PT_r10 is already filled with -ENOSYS.
|
|
move.d [$sp+PT_r11], $r11
|
|
move.d [$sp+PT_r12], $r12
|
|
move.d [$sp+PT_r13], $r13
|
|
move [$sp+PT_mof], $mof
|
|
move [$sp+PT_srp], $srp
|
|
|
|
ba _syscall_traced
|
|
nop
|
|
|
|
;; resume performs the actual task-switching, by switching stack pointers
|
|
;; input arguments: r10 = prev, r11 = next, r12 = thread offset in task struct
|
|
;; returns old current in r10
|
|
;;
|
|
;; TODO: see the i386 version. The switch_to which calls resume in our version
|
|
;; could really be an inline asm of this.
|
|
|
|
resume:
|
|
push $srp ; we keep the old/new PC on the stack
|
|
add.d $r12, $r10 ; r10 = current tasks tss
|
|
move $dccr, [$r10+THREAD_dccr]; save irq enable state
|
|
di
|
|
|
|
move $usp, [$r10+ THREAD_usp] ; save user-mode stackpointer
|
|
|
|
;; See copy_thread for the reason why register R9 is saved.
|
|
subq 10*4, $sp
|
|
movem $r9, [$sp] ; save non-scratch registers and R9.
|
|
|
|
move.d $sp, [$r10+THREAD_ksp] ; save the kernel stack pointer for the old task
|
|
move.d $sp, $r10 ; return last running task in r10
|
|
and.d -8192, $r10 ; get thread_info from stackpointer
|
|
move.d [$r10+TI_task], $r10 ; get task
|
|
add.d $r12, $r11 ; find the new tasks tss
|
|
move.d [$r11+THREAD_ksp], $sp ; switch into the new stackframe by restoring kernel sp
|
|
|
|
movem [$sp+], $r9 ; restore non-scratch registers and R9.
|
|
|
|
move [$r11+THREAD_usp], $usp ; restore user-mode stackpointer
|
|
|
|
move [$r11+THREAD_dccr], $dccr ; restore irq enable status
|
|
jump [$sp+] ; restore PC
|
|
|
|
;; This is the MMU bus fault handler.
|
|
;; It needs to stack the CPU status and overall is different
|
|
;; from the other interrupt handlers.
|
|
|
|
mmu_bus_fault:
|
|
;; For refills we try to do a quick page table lookup. If it is
|
|
;; a real fault we let the mm subsystem handle it.
|
|
|
|
;; the first longword in the sbfs frame was the interrupted PC
|
|
;; which fits nicely with the "IRP" slot in pt_regs normally used to
|
|
;; contain the return address. used by Oops to print kernel errors.
|
|
sbfs [$sp=$sp-16] ; push the internal CPU status
|
|
push $dccr
|
|
di
|
|
subq 2*4, $sp
|
|
movem $r1, [$sp]
|
|
move.d [R_MMU_CAUSE], $r1
|
|
;; ETRAX 100LX TR89 bugfix: if the second half of an unaligned
|
|
;; write causes a MMU-fault, it will not be restarted correctly.
|
|
;; This could happen if a write crosses a page-boundary and the
|
|
;; second page is not yet COW'ed or even loaded. The workaround
|
|
;; is to clear the unaligned bit in the CPU status record, so
|
|
;; that the CPU will rerun both the first and second halves of
|
|
;; the instruction. This will not have any sideeffects unless
|
|
;; the first half goes to any device or memory that can't be
|
|
;; written twice, and which is mapped through the MMU.
|
|
;;
|
|
;; We only need to do this for writes.
|
|
btstq 8, $r1 ; Write access?
|
|
bpl 1f
|
|
nop
|
|
move.d [$sp+16], $r0 ; Clear unaligned bit in csrinstr
|
|
and.d ~(1<<5), $r0
|
|
move.d $r0, [$sp+16]
|
|
1: btstq 12, $r1 ; Refill?
|
|
bpl 2f
|
|
lsrq 24, $r1 ; Get PGD index (bit 24-31)
|
|
move.d [per_cpu__current_pgd], $r0 ; PGD for the current process
|
|
move.d [$r0+$r1.d], $r0 ; Get PMD
|
|
beq 2f
|
|
nop
|
|
and.w PAGE_MASK, $r0 ; Remove PMD flags
|
|
move.d [R_MMU_CAUSE], $r1
|
|
lsrq PAGE_SHIFT, $r1
|
|
and.d 0x7ff, $r1 ; Get PTE index into PGD (bit 13-23)
|
|
move.d [$r0+$r1.d], $r1 ; Get PTE
|
|
beq 2f
|
|
nop
|
|
;; Store in TLB
|
|
move.d $r1, [R_TLB_LO]
|
|
;; Return
|
|
movem [$sp+], $r1
|
|
pop $dccr
|
|
rbf [$sp+] ; return by popping the CPU status
|
|
|
|
2: ; PMD or PTE missing, let the mm subsystem fix it up.
|
|
movem [$sp+], $r1
|
|
pop $dccr
|
|
|
|
; Ok, not that easy, pass it on to the mm subsystem
|
|
; The MMU status record is now on the stack
|
|
push $srp ; make a stackframe similar to pt_regs
|
|
push $dccr
|
|
push $mof
|
|
di
|
|
subq 14*4, $sp
|
|
movem $r13, [$sp]
|
|
push $r10 ; dummy orig_r10
|
|
moveq 1, $r10
|
|
push $r10 ; frametype == 1, BUSFAULT frame type
|
|
|
|
move.d $sp, $r10 ; pt_regs argument to handle_mmu_bus_fault
|
|
|
|
jsr handle_mmu_bus_fault ; in arch/cris/arch-v10/mm/fault.c
|
|
|
|
;; now we need to return through the normal path, we cannot just
|
|
;; do the RBFexit since we might have killed off the running
|
|
;; process due to a SEGV, scheduled due to a page blocking or
|
|
;; whatever.
|
|
|
|
moveq 0, $r9 ; busfault is equivalent to an irq
|
|
|
|
ba ret_from_intr
|
|
nop
|
|
|
|
;; special handlers for breakpoint and NMI
|
|
hwbreakpoint:
|
|
push $dccr
|
|
di
|
|
push $r10
|
|
push $r11
|
|
move.d [hw_bp_trig_ptr],$r10
|
|
move $brp,$r11
|
|
move.d $r11,[$r10+]
|
|
move.d $r10,[hw_bp_trig_ptr]
|
|
1: pop $r11
|
|
pop $r10
|
|
pop $dccr
|
|
retb
|
|
nop
|
|
|
|
IRQ1_interrupt:
|
|
;; this prologue MUST match the one in irq.h and the struct in ptregs.h!!!
|
|
move $brp,[$sp=$sp-16]; instruction pointer and room for a fake SBFS frame
|
|
push $srp
|
|
push $dccr
|
|
push $mof
|
|
di
|
|
subq 14*4, $sp
|
|
movem $r13, [$sp]
|
|
push $r10 ; push orig_r10
|
|
clear.d [$sp=$sp-4] ; frametype == 0, normal frame
|
|
|
|
;; If there is a glitch on the NMI pin shorter than ~100ns
|
|
;; (i.e. non-active by the time we get here) then the nmi_pin bit
|
|
;; in R_IRQ_MASK0_RD will already be cleared. The watchdog_nmi bit
|
|
;; is cleared by us however (when feeding the watchdog), which is why
|
|
;; we use that bit to determine what brought us here.
|
|
|
|
move.d [R_IRQ_MASK0_RD], $r1 ; External NMI or watchdog?
|
|
and.d (1<<30), $r1
|
|
bne wdog
|
|
move.d $sp, $r10
|
|
jsr handle_nmi
|
|
setf m ; Enable NMI again
|
|
ba _Rexit ; Return the standard way
|
|
nop
|
|
wdog:
|
|
#if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
|
|
;; Check if we're waiting for reset to happen, as signalled by
|
|
;; hard_reset_now setting cause_of_death to a magic value. If so, just
|
|
;; get stuck until reset happens.
|
|
.comm cause_of_death, 4 ;; Don't declare this anywhere.
|
|
move.d [cause_of_death], $r10
|
|
cmp.d 0xbedead, $r10
|
|
_killed_by_death:
|
|
beq _killed_by_death
|
|
nop
|
|
|
|
;; We'll see this in ksymoops dumps.
|
|
Watchdog_bite:
|
|
|
|
#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
|
|
;; We just restart the watchdog here to be sure we dont get
|
|
;; hit while printing the watchdogmsg below
|
|
;; This restart is compatible with the rest of the C-code, so
|
|
;; the C-code can keep restarting the watchdog after this point.
|
|
;; The non-NICE_DOGGY code below though, disables the possibility
|
|
;; to restart since it changes the watchdog key, to avoid any
|
|
;; buggy loops etc. keeping the watchdog alive after this.
|
|
jsr reset_watchdog
|
|
#else
|
|
|
|
;; We need to extend the 3.3ms after the NMI at watchdog bite, so we have
|
|
;; time for an oops-dump over a 115k2 serial wire. Another 100ms should do.
|
|
|
|
;; Change the watchdog key to an arbitrary 3-bit value and restart the
|
|
;; watchdog.
|
|
#define WD_INIT 2
|
|
moveq IO_FIELD (R_WATCHDOG, key, WD_INIT), $r10
|
|
move.d R_WATCHDOG, $r11
|
|
|
|
move.d $r10, [$r11]
|
|
moveq IO_FIELD (R_WATCHDOG, key, \
|
|
IO_EXTRACT (R_WATCHDOG, key, \
|
|
IO_MASK (R_WATCHDOG, key)) \
|
|
^ WD_INIT) \
|
|
| IO_STATE (R_WATCHDOG, enable, start), $r10
|
|
move.d $r10, [$r11]
|
|
|
|
#endif
|
|
|
|
;; Note that we don't do "setf m" here (or after two necessary NOPs),
|
|
;; since *not* doing that saves us from re-entrancy checks. We don't want
|
|
;; to get here again due to possible subsequent NMIs; we want the watchdog
|
|
;; to reset us.
|
|
|
|
move.d _watchdogmsg,$r10
|
|
jsr printk
|
|
|
|
move.d $sp, $r10
|
|
jsr watchdog_bite_hook
|
|
|
|
;; This nop is here so we see the "Watchdog_bite" label in ksymoops dumps
|
|
;; rather than "spurious_interrupt".
|
|
nop
|
|
;; At this point we drop down into spurious_interrupt, which will do a
|
|
;; hard reset.
|
|
|
|
.section .rodata,"a"
|
|
_watchdogmsg:
|
|
.ascii "Oops: bitten by watchdog\n\0"
|
|
.previous
|
|
|
|
#endif /* CONFIG_ETRAX_WATCHDOG and not CONFIG_SVINTO_SIM */
|
|
|
|
spurious_interrupt:
|
|
di
|
|
jump hard_reset_now
|
|
|
|
;; this handles the case when multiple interrupts arrive at the same time
|
|
;; we jump to the first set interrupt bit in a priority fashion
|
|
;; the hardware will call the unserved interrupts after the handler finishes
|
|
|
|
multiple_interrupt:
|
|
;; this prologue MUST match the one in irq.h and the struct in ptregs.h!!!
|
|
move $irp,[$sp=$sp-16]; instruction pointer and room for a fake SBFS frame
|
|
push $srp
|
|
push $dccr
|
|
push $mof
|
|
di
|
|
subq 14*4, $sp
|
|
movem $r13, [$sp]
|
|
push $r10 ; push orig_r10
|
|
clear.d [$sp=$sp-4] ; frametype == 0, normal frame
|
|
|
|
move.d $sp, $r10
|
|
jsr do_multiple_IRQ
|
|
|
|
jump ret_from_intr
|
|
|
|
do_sigtrap:
|
|
;;
|
|
;; SIGTRAP the process that executed the break instruction.
|
|
;; Make a frame that Rexit in entry.S expects.
|
|
;;
|
|
move $brp, [$sp=$sp-16] ; Push BRP while faking a cpu status record.
|
|
push $srp ; Push subroutine return pointer.
|
|
push $dccr ; Push condition codes.
|
|
push $mof ; Push multiply overflow reg.
|
|
di ; Need to disable irq's at this point.
|
|
subq 14*4, $sp ; Make room for r0-r13.
|
|
movem $r13, [$sp] ; Push the r0-r13 registers.
|
|
push $r10 ; Push orig_r10.
|
|
clear.d [$sp=$sp-4] ; Frametype - this is a normal stackframe.
|
|
|
|
movs.w -8192,$r9 ; THREAD_SIZE == 8192
|
|
and.d $sp, $r9
|
|
move.d [$r9+TI_task], $r10
|
|
move.d [$r10+TASK_pid], $r10 ; current->pid as arg1.
|
|
moveq 5, $r11 ; SIGTRAP as arg2.
|
|
jsr sys_kill
|
|
jump ret_from_intr ; Use the return routine for interrupts.
|
|
|
|
gdb_handle_breakpoint:
|
|
push $dccr
|
|
push $r0
|
|
#ifdef CONFIG_ETRAX_KGDB
|
|
move $dccr, $r0 ; U-flag not affected by previous insns.
|
|
btstq 8, $r0 ; Test the U-flag.
|
|
bmi _ugdb_handle_breakpoint ; Go to user mode debugging.
|
|
nop ; Empty delay slot (cannot pop r0 here).
|
|
pop $r0 ; Restore r0.
|
|
ba kgdb_handle_breakpoint ; Go to kernel debugging.
|
|
pop $dccr ; Restore dccr in delay slot.
|
|
#endif
|
|
|
|
_ugdb_handle_breakpoint:
|
|
move $brp, $r0 ; Use r0 temporarily for calculation.
|
|
subq 2, $r0 ; Set to address of previous instruction.
|
|
move $r0, $brp
|
|
pop $r0 ; Restore r0.
|
|
ba do_sigtrap ; SIGTRAP the offending process.
|
|
pop $dccr ; Restore dccr in delay slot.
|
|
|
|
.global kernel_execve
|
|
kernel_execve:
|
|
move.d __NR_execve, $r9
|
|
break 13
|
|
ret
|
|
nop
|
|
|
|
.data
|
|
|
|
hw_bp_trigs:
|
|
.space 64*4
|
|
hw_bp_trig_ptr:
|
|
.dword hw_bp_trigs
|
|
|
|
.section .rodata,"a"
|
|
sys_call_table:
|
|
.long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */
|
|
.long sys_exit
|
|
.long sys_fork
|
|
.long sys_read
|
|
.long sys_write
|
|
.long sys_open /* 5 */
|
|
.long sys_close
|
|
.long sys_waitpid
|
|
.long sys_creat
|
|
.long sys_link
|
|
.long sys_unlink /* 10 */
|
|
.long sys_execve
|
|
.long sys_chdir
|
|
.long sys_time
|
|
.long sys_mknod
|
|
.long sys_chmod /* 15 */
|
|
.long sys_lchown16
|
|
.long sys_ni_syscall /* old break syscall holder */
|
|
.long sys_stat
|
|
.long sys_lseek
|
|
.long sys_getpid /* 20 */
|
|
.long sys_mount
|
|
.long sys_oldumount
|
|
.long sys_setuid16
|
|
.long sys_getuid16
|
|
.long sys_stime /* 25 */
|
|
.long sys_ptrace
|
|
.long sys_alarm
|
|
.long sys_fstat
|
|
.long sys_pause
|
|
.long sys_utime /* 30 */
|
|
.long sys_ni_syscall /* old stty syscall holder */
|
|
.long sys_ni_syscall /* old gtty syscall holder */
|
|
.long sys_access
|
|
.long sys_nice
|
|
.long sys_ni_syscall /* 35 old ftime syscall holder */
|
|
.long sys_sync
|
|
.long sys_kill
|
|
.long sys_rename
|
|
.long sys_mkdir
|
|
.long sys_rmdir /* 40 */
|
|
.long sys_dup
|
|
.long sys_pipe
|
|
.long sys_times
|
|
.long sys_ni_syscall /* old prof syscall holder */
|
|
.long sys_brk /* 45 */
|
|
.long sys_setgid16
|
|
.long sys_getgid16
|
|
.long sys_signal
|
|
.long sys_geteuid16
|
|
.long sys_getegid16 /* 50 */
|
|
.long sys_acct
|
|
.long sys_umount /* recycled never used phys( */
|
|
.long sys_ni_syscall /* old lock syscall holder */
|
|
.long sys_ioctl
|
|
.long sys_fcntl /* 55 */
|
|
.long sys_ni_syscall /* old mpx syscall holder */
|
|
.long sys_setpgid
|
|
.long sys_ni_syscall /* old ulimit syscall holder */
|
|
.long sys_ni_syscall /* old sys_olduname holder */
|
|
.long sys_umask /* 60 */
|
|
.long sys_chroot
|
|
.long sys_ustat
|
|
.long sys_dup2
|
|
.long sys_getppid
|
|
.long sys_getpgrp /* 65 */
|
|
.long sys_setsid
|
|
.long sys_sigaction
|
|
.long sys_sgetmask
|
|
.long sys_ssetmask
|
|
.long sys_setreuid16 /* 70 */
|
|
.long sys_setregid16
|
|
.long sys_sigsuspend
|
|
.long sys_sigpending
|
|
.long sys_sethostname
|
|
.long sys_setrlimit /* 75 */
|
|
.long sys_old_getrlimit
|
|
.long sys_getrusage
|
|
.long sys_gettimeofday
|
|
.long sys_settimeofday
|
|
.long sys_getgroups16 /* 80 */
|
|
.long sys_setgroups16
|
|
.long sys_select /* was old_select in Linux/E100 */
|
|
.long sys_symlink
|
|
.long sys_lstat
|
|
.long sys_readlink /* 85 */
|
|
.long sys_uselib
|
|
.long sys_swapon
|
|
.long sys_reboot
|
|
.long old_readdir
|
|
.long old_mmap /* 90 */
|
|
.long sys_munmap
|
|
.long sys_truncate
|
|
.long sys_ftruncate
|
|
.long sys_fchmod
|
|
.long sys_fchown16 /* 95 */
|
|
.long sys_getpriority
|
|
.long sys_setpriority
|
|
.long sys_ni_syscall /* old profil syscall holder */
|
|
.long sys_statfs
|
|
.long sys_fstatfs /* 100 */
|
|
.long sys_ni_syscall /* sys_ioperm in i386 */
|
|
.long sys_socketcall
|
|
.long sys_syslog
|
|
.long sys_setitimer
|
|
.long sys_getitimer /* 105 */
|
|
.long sys_newstat
|
|
.long sys_newlstat
|
|
.long sys_newfstat
|
|
.long sys_ni_syscall /* old sys_uname holder */
|
|
.long sys_ni_syscall /* sys_iopl in i386 */
|
|
.long sys_vhangup
|
|
.long sys_ni_syscall /* old "idle" system call */
|
|
.long sys_ni_syscall /* vm86old in i386 */
|
|
.long sys_wait4
|
|
.long sys_swapoff /* 115 */
|
|
.long sys_sysinfo
|
|
.long sys_ipc
|
|
.long sys_fsync
|
|
.long sys_sigreturn
|
|
.long sys_clone /* 120 */
|
|
.long sys_setdomainname
|
|
.long sys_newuname
|
|
.long sys_ni_syscall /* sys_modify_ldt */
|
|
.long sys_adjtimex
|
|
.long sys_mprotect /* 125 */
|
|
.long sys_sigprocmask
|
|
.long sys_ni_syscall /* old "create_module" */
|
|
.long sys_init_module
|
|
.long sys_delete_module
|
|
.long sys_ni_syscall /* 130: old "get_kernel_syms" */
|
|
.long sys_quotactl
|
|
.long sys_getpgid
|
|
.long sys_fchdir
|
|
.long sys_bdflush
|
|
.long sys_sysfs /* 135 */
|
|
.long sys_personality
|
|
.long sys_ni_syscall /* for afs_syscall */
|
|
.long sys_setfsuid16
|
|
.long sys_setfsgid16
|
|
.long sys_llseek /* 140 */
|
|
.long sys_getdents
|
|
.long sys_select
|
|
.long sys_flock
|
|
.long sys_msync
|
|
.long sys_readv /* 145 */
|
|
.long sys_writev
|
|
.long sys_getsid
|
|
.long sys_fdatasync
|
|
.long sys_sysctl
|
|
.long sys_mlock /* 150 */
|
|
.long sys_munlock
|
|
.long sys_mlockall
|
|
.long sys_munlockall
|
|
.long sys_sched_setparam
|
|
.long sys_sched_getparam /* 155 */
|
|
.long sys_sched_setscheduler
|
|
.long sys_sched_getscheduler
|
|
.long sys_sched_yield
|
|
.long sys_sched_get_priority_max
|
|
.long sys_sched_get_priority_min /* 160 */
|
|
.long sys_sched_rr_get_interval
|
|
.long sys_nanosleep
|
|
.long sys_mremap
|
|
.long sys_setresuid16
|
|
.long sys_getresuid16 /* 165 */
|
|
.long sys_ni_syscall /* sys_vm86 */
|
|
.long sys_ni_syscall /* Old sys_query_module */
|
|
.long sys_poll
|
|
.long sys_nfsservctl
|
|
.long sys_setresgid16 /* 170 */
|
|
.long sys_getresgid16
|
|
.long sys_prctl
|
|
.long sys_rt_sigreturn
|
|
.long sys_rt_sigaction
|
|
.long sys_rt_sigprocmask /* 175 */
|
|
.long sys_rt_sigpending
|
|
.long sys_rt_sigtimedwait
|
|
.long sys_rt_sigqueueinfo
|
|
.long sys_rt_sigsuspend
|
|
.long sys_pread64 /* 180 */
|
|
.long sys_pwrite64
|
|
.long sys_chown16
|
|
.long sys_getcwd
|
|
.long sys_capget
|
|
.long sys_capset /* 185 */
|
|
.long sys_sigaltstack
|
|
.long sys_sendfile
|
|
.long sys_ni_syscall /* streams1 */
|
|
.long sys_ni_syscall /* streams2 */
|
|
.long sys_vfork /* 190 */
|
|
.long sys_getrlimit
|
|
.long sys_mmap2
|
|
.long sys_truncate64
|
|
.long sys_ftruncate64
|
|
.long sys_stat64 /* 195 */
|
|
.long sys_lstat64
|
|
.long sys_fstat64
|
|
.long sys_lchown
|
|
.long sys_getuid
|
|
.long sys_getgid /* 200 */
|
|
.long sys_geteuid
|
|
.long sys_getegid
|
|
.long sys_setreuid
|
|
.long sys_setregid
|
|
.long sys_getgroups /* 205 */
|
|
.long sys_setgroups
|
|
.long sys_fchown
|
|
.long sys_setresuid
|
|
.long sys_getresuid
|
|
.long sys_setresgid /* 210 */
|
|
.long sys_getresgid
|
|
.long sys_chown
|
|
.long sys_setuid
|
|
.long sys_setgid
|
|
.long sys_setfsuid /* 215 */
|
|
.long sys_setfsgid
|
|
.long sys_pivot_root
|
|
.long sys_mincore
|
|
.long sys_madvise
|
|
.long sys_getdents64 /* 220 */
|
|
.long sys_fcntl64
|
|
.long sys_ni_syscall /* reserved for TUX */
|
|
.long sys_ni_syscall
|
|
.long sys_gettid
|
|
.long sys_readahead /* 225 */
|
|
.long sys_setxattr
|
|
.long sys_lsetxattr
|
|
.long sys_fsetxattr
|
|
.long sys_getxattr
|
|
.long sys_lgetxattr /* 230 */
|
|
.long sys_fgetxattr
|
|
.long sys_listxattr
|
|
.long sys_llistxattr
|
|
.long sys_flistxattr
|
|
.long sys_removexattr /* 235 */
|
|
.long sys_lremovexattr
|
|
.long sys_fremovexattr
|
|
.long sys_tkill
|
|
.long sys_sendfile64
|
|
.long sys_futex /* 240 */
|
|
.long sys_sched_setaffinity
|
|
.long sys_sched_getaffinity
|
|
.long sys_ni_syscall /* sys_set_thread_area */
|
|
.long sys_ni_syscall /* sys_get_thread_area */
|
|
.long sys_io_setup /* 245 */
|
|
.long sys_io_destroy
|
|
.long sys_io_getevents
|
|
.long sys_io_submit
|
|
.long sys_io_cancel
|
|
.long sys_fadvise64 /* 250 */
|
|
.long sys_ni_syscall
|
|
.long sys_exit_group
|
|
.long sys_lookup_dcookie
|
|
.long sys_epoll_create
|
|
.long sys_epoll_ctl /* 255 */
|
|
.long sys_epoll_wait
|
|
.long sys_remap_file_pages
|
|
.long sys_set_tid_address
|
|
.long sys_timer_create
|
|
.long sys_timer_settime /* 260 */
|
|
.long sys_timer_gettime
|
|
.long sys_timer_getoverrun
|
|
.long sys_timer_delete
|
|
.long sys_clock_settime
|
|
.long sys_clock_gettime /* 265 */
|
|
.long sys_clock_getres
|
|
.long sys_clock_nanosleep
|
|
.long sys_statfs64
|
|
.long sys_fstatfs64
|
|
.long sys_tgkill /* 270 */
|
|
.long sys_utimes
|
|
.long sys_fadvise64_64
|
|
.long sys_ni_syscall /* sys_vserver */
|
|
.long sys_ni_syscall /* sys_mbind */
|
|
.long sys_ni_syscall /* 275 sys_get_mempolicy */
|
|
.long sys_ni_syscall /* sys_set_mempolicy */
|
|
.long sys_mq_open
|
|
.long sys_mq_unlink
|
|
.long sys_mq_timedsend
|
|
.long sys_mq_timedreceive /* 280 */
|
|
.long sys_mq_notify
|
|
.long sys_mq_getsetattr
|
|
.long sys_ni_syscall /* reserved for kexec */
|
|
.long sys_waitid
|
|
.long sys_ni_syscall /* 285 */ /* available */
|
|
.long sys_add_key
|
|
.long sys_request_key
|
|
.long sys_keyctl
|
|
.long sys_ioprio_set
|
|
.long sys_ioprio_get /* 290 */
|
|
.long sys_inotify_init
|
|
.long sys_inotify_add_watch
|
|
.long sys_inotify_rm_watch
|
|
.long sys_migrate_pages
|
|
.long sys_openat /* 295 */
|
|
.long sys_mkdirat
|
|
.long sys_mknodat
|
|
.long sys_fchownat
|
|
.long sys_futimesat
|
|
.long sys_fstatat64 /* 300 */
|
|
.long sys_unlinkat
|
|
.long sys_renameat
|
|
.long sys_linkat
|
|
.long sys_symlinkat
|
|
.long sys_readlinkat /* 305 */
|
|
.long sys_fchmodat
|
|
.long sys_faccessat
|
|
.long sys_pselect6
|
|
.long sys_ppoll
|
|
.long sys_unshare /* 310 */
|
|
.long sys_set_robust_list
|
|
.long sys_get_robust_list
|
|
.long sys_splice
|
|
.long sys_sync_file_range
|
|
.long sys_tee /* 315 */
|
|
.long sys_vmsplice
|
|
.long sys_move_pages
|
|
.long sys_getcpu
|
|
.long sys_epoll_pwait
|
|
.long sys_utimensat /* 320 */
|
|
.long sys_signalfd
|
|
.long sys_ni_syscall
|
|
.long sys_eventfd
|
|
.long sys_fallocate
|
|
|
|
/*
|
|
* NOTE!! This doesn't have to be exact - we just have
|
|
* to make sure we have _enough_ of the "sys_ni_syscall"
|
|
* entries. Don't panic if you notice that this hasn't
|
|
* been shrunk every time we add a new system call.
|
|
*/
|
|
|
|
.rept NR_syscalls-(.-sys_call_table)/4
|
|
.long sys_ni_syscall
|
|
.endr
|
|
|