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Compare Revisions

• This comparison shows the changes necessary to convert path

  → /trunk/kernel/arch/sparc64/src/trap/ @ 2610

  → /trunk/kernel/arch/sparc64/src/trap/ @ 2609

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 2610 → Rev 2609

/trunk/kernel/arch/sparc64/src/trap/syscall.c
0,0 → 1,48
/*
* Copyright (c) 2006 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup sparc64interrupt
* @{
*/
/** @file
*
*/
#include <arch/syscall.h>
#include <arch/trap/syscall.h>
#include <syscall/syscall.h>
#include <panic.h>
#include <arch/types.h>
unative_t syscall(int n, istate_t *istate, unative_t a1, unative_t a2, unative_t a3, unative_t a4)
{
return syscall_handler(a1, a2, a3, a4, n - TT_TRAP_INSTRUCTION(0));
}
/** @}
*/

/trunk/kernel/arch/sparc64/src/trap/trap_table.S
643,7 → 643,7
* TL4: hardware or software failure
*
* Input registers:
* %g1 Address of function to call if this is not a syscall.
* %g1 Address of function to call.
* %g2 First argument for the function.
* %g6 Pre-set as kernel stack base if trap from userspace.
* %g7 Pre-set as address of the userspace window buffer.
697,12 → 697,10
/*
* Copy arguments for the syscall to the new window.
*/
mov %i0, %o0
mov %i1, %o1
mov %i2, %o2
mov %i3, %o3
mov %i4, %o4
mov %i5, %o5
mov %i0, %o2
mov %i1, %o3
mov %i2, %o4
mov %i3, %o5
.endif
/*
742,12 → 740,7
* Copy arguments.
*/
mov %g1, %l0
.if NOT(\is_syscall)
mov %g2, %o0
.else
! store the syscall number on the stack as 7th argument
stx %g2, [%sp + STACK_WINDOW_SAVE_AREA_SIZE + STACK_BIAS + STACK_ARG6]
.endif
/*
* Save TSTATE, TPC and TNPC aside.
774,19 → 767,17
wrpr %g0, PSTATE_PRIV_BIT | PSTATE_PEF_BIT, %pstate
SAVE_GLOBALS
.if NOT(\is_syscall)
/*
* Call the higher-level handler and pass istate as second parameter.
*/
call %l0
add %sp, PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TNPC, %o1
.else
.if \is_syscall
/*
* Call the higher-level syscall handler.
* Copy the value returned by the syscall.
*/
call syscall_handler
nop
mov %o0, %i0 ! copy the value returned by the syscall
mov %o0, %i0
.endif
RESTORE_GLOBALS