875 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			875 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
| /*
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|  *  Copyright (C) 2000-2003 Axis Communications AB
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|  *
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|  *  Authors:	Bjorn Wesen (bjornw@axis.com)
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|  *              Tobias Anderberg (tobiasa@axis.com), CRISv32 port.
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|  *
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|  * Code for the system-call and fault low-level handling routines.
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|  *
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|  * NOTE: This code handles signal-recognition, which happens every time
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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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|  *	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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|  *
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|  */
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| 
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| #include <linux/linkage.h>
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| #include <linux/sys.h>
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| #include <asm/unistd.h>
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| #include <asm/errno.h>
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| #include <asm/thread_info.h>
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| #include <asm/asm-offsets.h>
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| 
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| #include <hwregs/asm/reg_map_asm.h>
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| #include <hwregs/asm/intr_vect_defs_asm.h>
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| 
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| 	;; Exported functions.
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| 	.globl system_call
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| 	.globl ret_from_intr
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| 	.globl ret_from_fork
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| 	.globl resume
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| 	.globl multiple_interrupt
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| 	.globl nmi_interrupt
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| 	.globl spurious_interrupt
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| 	.globl do_sigtrap
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| 	.globl gdb_handle_exception
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| 	.globl sys_call_table
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| 
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| 	; Check if preemptive kernel scheduling should be done.
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| #ifdef CONFIG_PREEMPT
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| _resume_kernel:
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| 	di
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| 	; Load current task struct.
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| 	movs.w	-8192, $r0		; THREAD_SIZE = 8192
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| 	and.d	$sp, $r0
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| 
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| 	addoq	+TI_preempt_count, $r0, $acr
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| 	move.d	[$acr], $r10		; Preemption disabled?
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| 	bne	_Rexit
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| 	nop
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| 
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| _need_resched:
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| 	addoq	+TI_flags, $r0, $acr
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| 	move.d	[$acr], $r10
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| 	btstq	TIF_NEED_RESCHED, $r10	; Check if need_resched is set.
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| 	bpl	_Rexit
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| 	nop
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| 
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| 	; Do preemptive kernel scheduling.
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| 	jsr	preempt_schedule_irq
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| 	nop
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| 
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| 	; Load new task struct.
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| 	movs.w	-8192, $r0		; THREAD_SIZE = 8192.
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| 	and.d	$sp, $r0
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| 
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| 	; One more time with new task.
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| 	ba	_need_resched
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| 	nop
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| #else
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| #define _resume_kernel _Rexit
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| #endif
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| 
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| 	; Called at exit from fork. schedule_tail must be called to drop
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| 	; spinlock if CONFIG_PREEMPT.
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| ret_from_fork:
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| 	jsr schedule_tail
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| 	nop
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| 	ba  ret_from_sys_call
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| 	nop
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| 
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| ret_from_intr:
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| 	;; Check for resched if preemptive kernel, or if we're going back to
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| 	;; user-mode. This test matches the user_regs(regs) macro. Don't simply
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| 	;; test CCS since that doesn't necessarily reflect what mode we'll
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| 	;; return into.
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| 	addoq	+PT_ccs, $sp, $acr
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| 	move.d	[$acr], $r0
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| 	btstq	16, $r0			; User-mode flag.
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| 	bpl	_resume_kernel
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| 
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| 	; Note that di below is in delay slot.
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| 
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| _resume_userspace:
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| 	di			; So need_resched and sigpending don't change.
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| 
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| 	movs.w	-8192, $r0		; THREAD_SIZE == 8192
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| 	and.d	$sp, $r0
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| 
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| 	addoq	+TI_flags, $r0, $acr	; current->work
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| 	move.d	[$acr], $r10
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| 	and.d	_TIF_WORK_MASK, $r10	; Work to be done on return?
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| 	bne	_work_pending
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| 	nop
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| 	ba	_Rexit
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| 	nop
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| 
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| 	;; The system_call is called by a BREAK instruction, which looks pretty
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| 	;; much like any other exception.
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| 	;;
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| 	;; System calls can't be made from interrupts but we still stack ERP
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| 	;; to have a complete stack frame.
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| 	;;
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| 	;; In r9 we have the wanted syscall number. Arguments come in r10,r11,r12,
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| 	;; r13,mof,srp
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| 	;;
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| 	;; This function looks on the _surface_ like spaghetti programming, but it's
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| 	;; really designed so that the fast-path does not force cache-loading of
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| 	;; non-used instructions. Only the non-common cases cause the outlined code
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| 	;; to run..
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| 
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| system_call:
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| 	;; Stack-frame similar to the irq heads, which is reversed in
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| 	;; ret_from_sys_call.
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| 	subq	12, $sp		; Skip EXS, EDA.
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| 	move	$erp, [$sp]
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| 	subq	4, $sp
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| 	move	$srp, [$sp]
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| 	subq	4, $sp
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| 	move	$ccs, [$sp]
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| 	subq	4, $sp
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| 	ei			; Allow IRQs while handling system call
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| 	move	$spc, [$sp]
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| 	subq	4, $sp
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| 	move	$mof, [$sp]
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| 	subq	4, $sp
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| 	move	$srs, [$sp]
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| 	subq	4, $sp
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| 	move.d	$acr, [$sp]
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| 	subq	14*4, $sp	; Make room for R0-R13.
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| 	movem	$r13, [$sp]	; Push R0-R13
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| 	subq	4, $sp
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| 	move.d	$r10, [$sp]	; Push orig_r10.
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| 
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| ; Set S-bit when kernel debugging to keep hardware breakpoints active.
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| #ifdef CONFIG_ETRAX_KGDB
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| 	move $ccs, $r0
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| 	or.d (1<<9), $r0
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| 	move $r0, $ccs
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| #endif
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| 
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| 	movs.w	-ENOSYS, $r0
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| 	addoq	+PT_r10, $sp, $acr
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| 	move.d	$r0, [$acr]
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| 
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| 	;; Check if this process is syscall-traced.
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| 	movs.w	-8192, $r0	; THREAD_SIZE == 8192
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| 	and.d	$sp, $r0
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| 
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| 	addoq	+TI_flags, $r0, $acr
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| 	move.d	[$acr], $r0
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| 	btstq	TIF_SYSCALL_TRACE, $r0
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| 	bmi	_syscall_trace_entry
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| 	nop
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| 
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| _syscall_traced:
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| 	;; Check for sanity in the requested syscall number.
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| 	cmpu.w	NR_syscalls, $r9
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| 	bhs	ret_from_sys_call
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| 	lslq	2, $r9		;  Multiply by 4, in the delay slot.
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| 
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| 	;; The location on the stack for the register structure is passed as a
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| 	;; seventh argument. Some system calls need this.
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| 	move.d  $sp, $r0
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| 	subq	4, $sp
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| 	move.d	$r0, [$sp]
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| 
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| 	;; The registers carrying parameters (R10-R13) are intact. The optional
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| 	;; fifth and sixth parameters is in MOF and SRP respectivly. Put them
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| 	;; back on the stack.
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| 	subq	4, $sp
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| 	move	$srp, [$sp]
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| 	subq	4, $sp
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| 	move	$mof, [$sp]
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| 
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| 	;; Actually to the system call.
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| 	addo.d	+sys_call_table, $r9, $acr
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| 	move.d	[$acr], $acr
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| 	jsr	$acr
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| 	nop
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| 
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| 	addq	3*4, $sp		; Pop the mof, srp and regs parameters.
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| 	addoq	+PT_r10, $sp, $acr
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| 	move.d	$r10, [$acr]		; Save the return value.
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| 
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| 	moveq	1, $r9			; "Parameter" to ret_from_sys_call to
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| 					; show it was a sys call.
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| 
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| 	;; Fall through into ret_from_sys_call to return.
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| 
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| ret_from_sys_call:
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| 	;; R9 is a parameter:
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| 	;;  >= 1 from syscall
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| 	;;     0 from irq
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| 
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| 	;; Get the current task-struct pointer.
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| 	movs.w	-8192, $r0	; THREAD_SIZE == 8192
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| 	and.d	$sp, $r0
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| 
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| 	di		; Make sure need_resched and sigpending don't change.
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| 
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| 	addoq	+TI_flags, $r0, $acr
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| 	move.d	[$acr], $r1
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| 	and.d	_TIF_ALLWORK_MASK, $r1
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| 	bne	_syscall_exit_work
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| 	nop
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| 
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| _Rexit:
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| 	;; This epilogue MUST match the prologues in multiple_interrupt, irq.h
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| 	;; and ptregs.h.
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| 	addq	4, $sp		; Skip orig_r10.
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| 	movem	[$sp+], $r13	; Registers R0-R13.
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| 	move.d	[$sp+], $acr
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| 	move	[$sp], $srs
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| 	addq	4, $sp
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| 	move	[$sp+], $mof
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| 	move	[$sp+], $spc
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| 	move	[$sp+], $ccs
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| 	move	[$sp+], $srp
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| 	move	[$sp+], $erp
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| 	addq    8, $sp		; Skip EXS, EDA.
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| 	jump	$erp
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| 	rfe			; Restore condition code stack in delay-slot.
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| 
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| 	;; We get here after doing a syscall if extra work might need to be done
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| 	;; perform syscall exit tracing if needed.
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| 
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| _syscall_exit_work:
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| 	;; R0 contains current at this point and irq's are disabled.
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| 
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| 	addoq	+TI_flags, $r0, $acr
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| 	move.d	[$acr], $r1
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| 	btstq	TIF_SYSCALL_TRACE, $r1
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| 	bpl	_work_pending
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| 	nop
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| 	ei
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| 	move.d	$r9, $r1		; Preserve R9.
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| 	jsr	do_syscall_trace
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| 	nop
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| 	move.d	$r1, $r9
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| 	ba	_resume_userspace
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| 	nop
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| 
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| _work_pending:
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| 	addoq	+TI_flags, $r0, $acr
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| 	move.d	[$acr], $r10
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| 	btstq	TIF_NEED_RESCHED, $r10	; Need resched?
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| 	bpl	_work_notifysig		; No, must be signal/notify.
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| 	nop
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| 
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| _work_resched:
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| 	move.d	$r9, $r1		; Preserve R9.
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| 	jsr	schedule
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| 	nop
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| 	move.d	$r1, $r9
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| 	di
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| 
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| 	addoq	+TI_flags, $r0, $acr
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| 	move.d	[$acr], $r1
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| 	and.d	_TIF_WORK_MASK, $r1	; Ignore sycall trace counter.
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| 	beq	_Rexit
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| 	nop
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| 	btstq	TIF_NEED_RESCHED, $r1
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| 	bmi	_work_resched		; current->work.need_resched.
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| 	nop
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| 
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| _work_notifysig:
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| 	;; Deal with pending signals and notify-resume requests.
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| 
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| 	addoq	+TI_flags, $r0, $acr
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| 	move.d	[$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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| 	move.d	$r9, $r10		; do_notify_resume syscall/irq param.
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| 
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| 	ba _Rexit
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| 	nop
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| 
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| 	;; We get here as a sidetrack when we've entered a syscall with the
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| 	;; trace-bit set. We need to call do_syscall_trace and then continue
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| 	;; with the call.
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| 
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| _syscall_trace_entry:
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| 	;; PT_r10 in the frame contains -ENOSYS as required, at this point.
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| 
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| 	jsr	do_syscall_trace
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| 	nop
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| 
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| 	;; Now re-enter the syscall code to do the syscall itself. We need to
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| 	;; restore R9 here to contain the wanted syscall, and the other
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| 	;; parameter-bearing registers.
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| 	addoq	+PT_r9, $sp, $acr
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| 	move.d	[$acr], $r9
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| 	addoq	+PT_orig_r10, $sp, $acr
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| 	move.d	[$acr], $r10		; PT_r10 is already -ENOSYS.
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| 	addoq	+PT_r11, $sp, $acr
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| 	move.d	[$acr], $r11
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| 	addoq	+PT_r12, $sp, $acr
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| 	move.d	[$acr], $r12
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| 	addoq	+PT_r13, $sp, $acr
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| 	move.d	[$acr], $r13
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| 	addoq	+PT_mof, $sp, $acr
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| 	move	[$acr], $mof
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| 	addoq	+PT_srp, $sp, $acr
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| 	move	[$acr], $srp
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| 
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| 	ba	_syscall_traced
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| 	nop
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| 
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| 	;; Resume performs the actual task-switching, by switching stack
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| 	;; pointers. Input arguments are:
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| 	;;
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| 	;; R10 = prev
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| 	;; R11 = next
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| 	;; R12 = thread offset in task struct.
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| 	;;
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| 	;; Returns old current in R10.
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| 
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| resume:
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| 	subq	4, $sp
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| 	move	$srp, [$sp]		; Keep old/new PC on the stack.
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| 	add.d	$r12, $r10		; R10 = current tasks tss.
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| 	addoq	+THREAD_ccs, $r10, $acr
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| 	move	$ccs, [$acr]		; Save IRQ enable state.
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| 	di
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| 
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| 	addoq	+THREAD_usp, $r10, $acr
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| 	move	$usp, [$acr]		; Save user-mode stackpointer.
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| 
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| 	;; See copy_thread for the reason why register R9 is saved.
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| 	subq	10*4, $sp
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| 	movem	$r9, [$sp]		; Save non-scratch registers and R9.
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| 
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| 	addoq	+THREAD_ksp, $r10, $acr
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| 	move.d	$sp, [$acr]		; Save kernel SP for old task.
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| 
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| 	move.d	$sp, $r10		; Return last running task in R10.
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| 	and.d   -8192, $r10		; Get thread_info from stackpointer.
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| 	addoq	+TI_task, $r10, $acr
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| 	move.d	[$acr], $r10		; Get task.
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| 	add.d	$r12, $r11		; Find the new tasks tss.
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| 	addoq	+THREAD_ksp, $r11, $acr
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| 	move.d	[$acr], $sp		; Switch to new stackframe.
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| 	movem	[$sp+], $r9		; Restore non-scratch registers and R9.
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| 
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| 	addoq	+THREAD_usp, $r11, $acr
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| 	move	[$acr], $usp		; Restore user-mode stackpointer.
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| 
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| 	addoq	+THREAD_ccs, $r11, $acr
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| 	move	[$acr], $ccs		; Restore IRQ enable status.
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| 	move.d	[$sp+], $acr
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| 	jump	$acr			; Restore PC.
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| 	nop
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| 
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| nmi_interrupt:
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| 
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| ;; If we receive a watchdog interrupt while it is not expected, then set
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| ;; up a canonical frame and dump register contents before dying.
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| 
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| 	;; This prologue MUST match the one in irq.h and the struct in ptregs.h!
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| 	subq	12, $sp		;  Skip EXS, EDA.
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| 	move	$nrp, [$sp]
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| 	subq	4, $sp
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| 	move	$srp, [$sp]
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| 	subq	4, $sp
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| 	move	$ccs, [$sp]
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| 	subq	4, $sp
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| 	move	$spc, [$sp]
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| 	subq	4, $sp
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| 	move	$mof, [$sp]
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| 	subq	4, $sp
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| 	move	$srs, [$sp]
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| 	subq	4, $sp
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| 	move.d	$acr, [$sp]
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| 	subq	14*4, $sp		; Make room for R0-R13.
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| 	movem	$r13, [$sp]		; Push R0-R13.
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| 	subq	4, $sp
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| 	move.d	$r10, [$sp]		; Push orig_r10.
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| 	move.d  REG_ADDR(intr_vect, regi_irq, r_nmi), $r0
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| 	move.d  [$r0], $r0
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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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|         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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| 	nop
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| 	jsr	handle_nmi
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| 	move.d	$sp, $r10		; Pointer to registers
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| 1:	addq    4, $sp			; Skip orig_r10
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| 	movem   [$sp+], $r13
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| 	move.d  [$sp+], $acr
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| 	move    [$sp], $srs
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| 	addq    4, $sp
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| 	move    [$sp+], $mof
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| 	move    [$sp+], $spc
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| 	move    [$sp+], $ccs
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| 	move	[$sp+], $srp
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| 	move	[$sp+], $nrp
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| 	addq    8, $sp			; Skip EXS, EDA.
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| 	jump    $nrp
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| 	rfn
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| 
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| 	.comm	cause_of_death, 4	;; Don't declare this anywhere.
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| 
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| spurious_interrupt:
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| 	di
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| 	jump hard_reset_now
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| 	nop
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| 
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| 	;; This handles the case when multiple interrupts arrive at the same
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| 	;; time. Jump to the first set interrupt bit in a priotiry fashion. The
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| 	;; hardware will call the unserved interrupts after the handler
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| 	;; finishes.
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| multiple_interrupt:
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| 	;; This prologue MUST match the one in irq.h and the struct in ptregs.h!
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| 	subq	12, $sp		; Skip EXS, EDA.
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| 	move	$erp, [$sp]
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| 	subq	4, $sp
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| 	move	$srp, [$sp]
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| 	subq	4, $sp
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| 	move	$ccs, [$sp]
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| 	subq	4, $sp
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| 	move	$spc, [$sp]
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| 	subq	4, $sp
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| 	move	$mof, [$sp]
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| 	subq	4, $sp
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| 	move	$srs, [$sp]
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| 	subq	4, $sp
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| 	move.d	$acr, [$sp]
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| 	subq	14*4, $sp	; Make room for R0-R13.
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| 	movem	$r13, [$sp]	; Push R0-R13.
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| 	subq	4, $sp
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| 	move.d	$r10, [$sp]	; Push orig_r10.
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| 
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| ; Set S-bit when kernel debugging to keep hardware breakpoints active.
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| #ifdef CONFIG_ETRAX_KGDB
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| 	move $ccs, $r0
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| 	or.d (1<<9), $r0
 | |
| 	move $r0, $ccs
 | |
| #endif
 | |
| 
 | |
| 	jsr	crisv32_do_multiple
 | |
| 	move.d	$sp, $r10
 | |
| 	jump    ret_from_intr
 | |
| 	nop
 | |
| 
 | |
| do_sigtrap:
 | |
| 	;; Sigtraps the process that executed the BREAK instruction. Creates a
 | |
| 	;; frame that Rexit expects.
 | |
| 	subq	4, $sp
 | |
| 	move    $eda, [$sp]
 | |
| 	subq    4, $sp
 | |
| 	move    $exs, [$sp]
 | |
| 	subq    4, $sp
 | |
| 	move	$erp, [$sp]
 | |
| 	subq	4, $sp
 | |
| 	move	$srp, [$sp]
 | |
| 	subq	4, $sp
 | |
| 	move	$ccs, [$sp]
 | |
| 	subq	4, $sp
 | |
| 	move	$spc, [$sp]
 | |
| 	subq	4, $sp
 | |
| 	move	$mof, [$sp]
 | |
| 	subq	4, $sp
 | |
| 	move	$srs, [$sp]
 | |
| 	subq	4, $sp
 | |
| 	move.d	$acr, [$sp]
 | |
| 	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.
 | |
| 	subq	4, $sp
 | |
| 	move.d	$r10, [$sp]		; Push orig_r10.
 | |
| 
 | |
| 	movs.w	-8192, $r9		; THREAD_SIZE == 8192
 | |
| 	and.d	$sp, $r9
 | |
| 
 | |
| 	;; thread_info as first parameter
 | |
| 	move.d  $r9, $r10
 | |
| 	moveq	5, $r11			; SIGTRAP as second argument.
 | |
| 	jsr	ugdb_trap_user
 | |
| 	nop
 | |
| 	jump	ret_from_intr		; Use the return routine for interrupts.
 | |
| 	nop
 | |
| 
 | |
| gdb_handle_exception:
 | |
| 	subq	4, $sp
 | |
| 	move.d	$r0, [$sp]
 | |
| #ifdef CONFIG_ETRAX_KGDB
 | |
| 	move	$ccs, $r0		; U-flag not affected by previous insns.
 | |
| 	btstq	16, $r0			; Test the U-flag.
 | |
| 	bmi	_ugdb_handle_exception	; Go to user mode debugging.
 | |
| 	nop				; Empty delay-slot (cannot pop R0 here).
 | |
| 	ba	kgdb_handle_exception	; Go to kernel debugging.
 | |
| 	move.d	[$sp+], $r0		; Restore R0 in delay slot.
 | |
| #endif
 | |
| 
 | |
| _ugdb_handle_exception:
 | |
| 	ba	do_sigtrap		; SIGTRAP the offending process.
 | |
| 	move.d	[$sp+], $r0		; Restore R0 in delay slot.
 | |
| 
 | |
| 	.global kernel_execve
 | |
| kernel_execve:
 | |
| 	move.d __NR_execve, $r9
 | |
| 	break 13
 | |
| 	ret
 | |
| 	nop
 | |
| 
 | |
| 	.data
 | |
| 
 | |
| 	.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 sys_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_timerfd_create
 | |
| 	.long sys_eventfd
 | |
| 	.long sys_fallocate
 | |
| 	.long sys_timerfd_settime       /* 325 */
 | |
| 	.long sys_timerfd_gettime
 | |
| 	.long sys_signalfd4
 | |
| 	.long sys_eventfd2
 | |
| 	.long sys_epoll_create1
 | |
| 	.long sys_dup3			/* 330 */
 | |
| 	.long sys_pipe2
 | |
| 	.long sys_inotify_init1
 | |
| 	.long sys_preadv
 | |
| 	.long sys_pwritev
 | |
| 
 | |
|         /*
 | |
|          * 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
 | |
| 
 |