patch-2.1.101 linux/arch/mips/kernel/r2300_scall.S

• Lines: 85
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.1.100/linux/arch/mips/kernel/r2300_scall.S
• Orig date: Wed Dec 10 10:31:09 1997

diff -u --recursive --new-file v2.1.100/linux/arch/mips/kernel/r2300_scall.S linux/arch/mips/kernel/r2300_scall.S
@@ -1,84 +0,0 @@
-/* $Id: r2300_scall.S,v 1.1.1.1 1997/06/01 03:16:42 ralf Exp $
- * r2300_scall.S: R2000/R3000 specific code to handle system calls.
- *
- * Copyright (C) 1994, 1995, 1996 by Ralf Baechle and Andreas Busse
- *
- * Multi-arch abstraction and beautification:
- * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
- */
-#include <asm/asm.h>
-#include <asm/bootinfo.h>
-#include <asm/cachectl.h>
-#include <asm/fpregdef.h>
-#include <asm/mipsconfig.h>
-#include <asm/mipsregs.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/regdef.h>
-#include <asm/stackframe.h>
-
-/*
- * do_syscall calls the function in a1 with upto 7 arguments.  If over
- * four arguments are being requested, the additional arguments will
- * be copied from the user stack pointed to by a0->reg29.
- *
- * a0 (struct pt_regs *)  pointer to user registers
- * a1 (syscall_t)         pointer to syscall to do
- * a2 (int)               number of arguments to syscall
- */
-	.set	noreorder
-NESTED(r2300_do_syscalls, 32, sp)
-	subu	sp,32
-	sw	ra,28(sp)
-	sll	a2,a2,PTRLOG
-	lw	t0,dst(a2)
-	move	t2,a1
-	jalr	t0
-	 lw	t0,PT_R29(a0)		# get old user stack pointer
-
-7:
-	lw	t1,24(t0)		# parameter #7 from usp
-	nop				# delay slot
-	sw	t1,24(sp)
-6:
-	lw	t1,20(t0)		# parameter #6 from usp
-	nop				# delay slot
-	sw	t1,20(sp)
-5:
-	lw	t1,16(t0)		# parameter #5 from usp
-	nop				# delay slot
-	sw	t1,16(sp)
-4:
-	lw	a3,PT_R7(a0)		# 4 args
-3:
-	lw	a2,PT_R6(a0)		# 3 args
-2:
-	lw	a1,PT_R5(a0)		# 2 args
-1:
-	jalr	t2			# 1 args
-	 lw	a0,PT_R4(a0)
-
-	lw	ra,28(sp)
-	addiu	sp,32
-	jr	ra
-	 nop
-
-0:
-	jalr	t2			# 0 args, just pass a0
-	 lw	ra,28(sp)
-	addiu	sp,32
-
-	jr	ra
-	 nop				# delay slot
-	END(r2300_do_syscalls)
-
-		.rdata
-		.align	PTRLOG
-dst:		PTR	0b, 1b, 2b, 3b, 4b, 5b, 6b, 7b
-
-		.section	__ex_table,"a"
-		PTR	7b,bad_stack
-		PTR	6b,bad_stack
-		PTR	5b,bad_stack
-		.previous