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📄 bcopyinout_xscale.S(19.19 KB)
📄 blockio.S(13.19 KB)
📄 bus_space_asm_generic.S(5.43 KB)
📄 bus_space_base.c(4.8 KB)
📄 bus_space_generic.c(4.1 KB)
📄 busdma_machdep.c(50.91 KB)
📄 copystr.S(3.29 KB)
📄 cpu_asm-v6.S(7.88 KB)
📄 cpufunc.c(8.69 KB)
📄 cpufunc_asm.S(2.53 KB)
📄 cpufunc_asm_arm11x6.S(3.5 KB)
📄 cpufunc_asm_armv7.S(1.82 KB)
📄 cpufunc_asm_pj4b.S(3.47 KB)
📄 cpuinfo.c(14.82 KB)
📄 db_disasm.c(2.58 KB)
📄 db_interface.c(7.03 KB)
📄 db_trace.c(4.69 KB)
📄 debug_monitor.c(24 KB)
📄 disassem.c(20.16 KB)
📄 dump_machdep.c(2.95 KB)
📄 elf_machdep.c(8.8 KB)
📄 elf_note.S(1.56 KB)
📄 exception.S(14.21 KB)
📄 fiq.c(4.69 KB)
📄 fiq_subr.S(2.77 KB)
📄 fusu.S(5.61 KB)
📄 gdb_machdep.c(3.62 KB)
📄 genassym.c(5.29 KB)
📄 generic_timer.c(13.62 KB)
📄 gic.c(32.64 KB)
📄 gic.h(2.64 KB)
📄 gic_acpi.c(9.14 KB)
📄 gic_common.h(4.19 KB)
📄 gic_fdt.c(9.69 KB)
📄 hypervisor-stub.S(2.61 KB)
📄 identcpu-v6.c(10.16 KB)
📄 in_cksum.c(4.23 KB)
📄 in_cksum_arm.S(6.87 KB)
📄 locore-v6.S(14.28 KB)
📄 locore.S(1.63 KB)
📄 machdep.c(23.79 KB)
📄 machdep_boot.c(12.48 KB)
📄 machdep_intr.c(7.63 KB)
📄 machdep_kdb.c(3.77 KB)
📄 machdep_ptrace.c(8.1 KB)
📄 mem.c(5.03 KB)
📄 minidump_machdep.c(8.77 KB)
📄 mp_machdep.c(8.58 KB)
📄 mpcore_timer.c(15.71 KB)
📄 mpcore_timervar.h(2.03 KB)
📄 nexus.c(11.33 KB)
📄 nexusvar.h(1.54 KB)
📄 ofw_machdep.c(2.28 KB)
📄 pl190.c(7.63 KB)
📄 pl310.c(16.9 KB)
📄 platform.c(5.31 KB)
📄 platform_if.m(4.14 KB)
📄 platform_pl310_if.m(2.44 KB)
📄 pmap-v6.c(187.97 KB)
📄 pmu.c(3.98 KB)
📄 pmu.h(1.8 KB)
📄 pmu_fdt.c(5.87 KB)
📄 ptrace_machdep.c(1.89 KB)
📄 sc_machdep.c(2.21 KB)
📄 setcpsr.S(2.52 KB)
📄 setstack.s(3.16 KB)
📄 stack_machdep.c(2.65 KB)
📄 stdatomic.c(13.88 KB)
📄 support.S(51.78 KB)
📄 swtch-v6.S(13.07 KB)
📄 swtch.S(4.68 KB)
📄 sys_machdep.c(5.24 KB)
📄 syscall.c(5.54 KB)
📄 trap-v6.c(19.14 KB)
📄 uio_machdep.c(3.95 KB)
📄 undefined.c(9.07 KB)
📄 unwind.c(16.62 KB)
📄 vfp.c(9.1 KB)
📄 vm_machdep.c(8.38 KB)

Editing: fusu.S

/*	$NetBSD: fusu.S,v 1.10 2003/12/01 13:34:44 rearnsha Exp $	*/

/*-
 * Copyright (c) 1996-1998 Mark Brinicombe.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Mark Brinicombe
 * 4. The name of the company nor the name of the author may 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 OR CONTRIBUTORS 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.
 *
 */

#include <machine/asm.h>
#include <machine/armreg.h>
#include "assym.inc"
__FBSDID("$FreeBSD$");

.syntax	unified

#define GET_PCB(tmp) \
	mrc p15, 0, tmp, c13, c0, 4; \
	add	tmp, tmp, #(TD_PCB)

/*
 * casueword32(volatile uint32_t *base, uint32_t oldval, uint32_t *oldvalp,
 *    uint32_t newval);
 */

ENTRY(casueword)
EENTRY_NP(casueword32)
	stmfd	sp!, {r4, r5, r6}

ldr	r4, =(VM_MAXUSER_ADDRESS-3)
	cmp	r0, r4
	mvncs	r0, #0
	bcs	1f

GET_PCB(r6)
	ldr	r6, [r6]

#ifdef DIAGNOSTIC
	teq	r6, #0x00000000
	ldmfdeq	sp!, {r4, r5, r6}
	beq	.Lfusupcbfault
#endif

adr	r4, .Lcasuwordfault
	str	r4, [r6, #PCB_ONFAULT]

mov	r5, #1
	ldrex	r4, [r0]
	cmp	r4, r1
	strexeq	r5, r3, [r0]
	str	r4, [r2]
	mov	r0, #0
	str	r0, [r6, #PCB_ONFAULT]
	mov	r0, r5
1:
	ldmfd	sp!, {r4, r5, r6}
	RET
EEND(casueword32)
END(casueword)

/*
 * Handle faults from casuword.  Clean up and return -1.
 */

.Lcasuwordfault:
	mov	r0, #0x00000000
	str	r0, [r6, #PCB_ONFAULT]
	mvn	r0, #0
	ldmfd	sp!, {r4, r5, r6}
	RET

/*
 * fueword(caddr_t uaddr, long *val);
 * Fetch an int from the user's address space.
 */

ENTRY(fueword)
EENTRY_NP(fueword32)
	ldr	r3, =(VM_MAXUSER_ADDRESS-3)
	cmp	r0, r3
	mvncs	r0, #0
	RETc(cs)

GET_PCB(r2)
	ldr	r2, [r2]

#ifdef DIAGNOSTIC
	teq	r2, #0x00000000
	beq	.Lfusupcbfault
#endif

adr	r3, .Lfusufault
	str	r3, [r2, #PCB_ONFAULT]

ldrt	r3, [r0]
	str	r3, [r1]

mov	r0, #0x00000000
	str	r0, [r2, #PCB_ONFAULT]
	RET
EEND(fueword32)
END(fueword)

/*
 * fusword(caddr_t uaddr);
 * Fetch a short from the user's address space.
 */

ENTRY(fusword)
	ldr	r3, =(VM_MAXUSER_ADDRESS-1)
	cmp	r0, r3
	mvncs	r0, #0
	RETc(cs)

GET_PCB(r2)
	ldr	r2, [r2]

#ifdef DIAGNOSTIC
	teq	r2, #0x00000000
	beq	.Lfusupcbfault
#endif

adr	r1, .Lfusufault
	str	r1, [r2, #PCB_ONFAULT]

ldrbt	r3, [r0], #1
	ldrbt	ip, [r0]
	orr	r0, r3, ip, asl #8
	mov	r1, #0x00000000
	str	r1, [r2, #PCB_ONFAULT]
	RET
END(fusword)

/*
 * fubyte(caddr_t uaddr);
 * Fetch a byte from the user's address space.
 */

ENTRY(fubyte)
	ldr	r3, =VM_MAXUSER_ADDRESS
	cmp	r0, r3
	mvncs	r0, #0
	RETc(cs)

GET_PCB(r2)
	ldr	r2, [r2]

#ifdef DIAGNOSTIC
	teq	r2, #0x00000000
	beq	.Lfusupcbfault
#endif

adr	r1, .Lfusufault
	str	r1, [r2, #PCB_ONFAULT]

ldrbt	r3, [r0]

mov	r1, #0x00000000
	str	r1, [r2, #PCB_ONFAULT]
	mov	r0, r3
	RET
END(fubyte)

/*
 * Handle faults from [fs]u*().  Clean up and return -1.
 */

.Lfusufault:
	mov	r0, #0x00000000
	str	r0, [r2, #PCB_ONFAULT]
	mvn	r0, #0x00000000
	RET

#ifdef DIAGNOSTIC
/*
 * Handle earlier faults from [fs]u*(), due to no pcb
 */

.Lfusupcbfault:
	mov	r1, r0
	adr	r0, fusupcbfaulttext
	b	_C_LABEL(panic)

fusupcbfaulttext:
	.asciz	"Yikes - no valid PCB during fusuxxx() addr=%08x\n"
	.align	2
#endif

/*
 * suword(caddr_t uaddr, int x);
 * Store an int in the user's address space.
 */

ENTRY(suword)
EENTRY_NP(suword32)
	ldr	r3, =(VM_MAXUSER_ADDRESS-3)
	cmp	r0, r3
	mvncs	r0, #0
	RETc(cs)

GET_PCB(r2)
	ldr	r2, [r2]

#ifdef DIAGNOSTIC
	teq	r2, #0x00000000
	beq	.Lfusupcbfault
#endif

adr	r3, .Lfusufault
	str	r3, [r2, #PCB_ONFAULT]

strt	r1, [r0]

mov	r0, #0x00000000
	str	r0, [r2, #PCB_ONFAULT]
	RET
EEND(suword32)
END(suword)

/*
 * susword(caddr_t uaddr, short x);
 * Store a short in the user's address space.
 */

ENTRY(susword)
	ldr	r3, =(VM_MAXUSER_ADDRESS-1)
	cmp	r0, r3
	mvncs	r0, #0
	RETc(cs)

GET_PCB(r2)
	ldr	r2, [r2]

#ifdef DIAGNOSTIC
	teq	r2, #0x00000000
	beq	.Lfusupcbfault
#endif

adr	r3, .Lfusufault
	str	r3, [r2, #PCB_ONFAULT]

strbt	r1, [r0], #1
	mov	r1, r1, lsr #8
	strbt	r1, [r0]

mov	r0, #0x00000000
	str	r0, [r2, #PCB_ONFAULT]
	RET
END(susword)

/*
 * subyte(caddr_t uaddr, char x);
 * Store a byte in the user's address space.
 */

ENTRY(subyte)
	ldr	r3, =VM_MAXUSER_ADDRESS
	cmp	r0, r3
	mvncs	r0, #0
	RETc(cs)

GET_PCB(r2)
	ldr	r2, [r2]

#ifdef DIAGNOSTIC
	teq	r2, #0x00000000
	beq	.Lfusupcbfault
#endif

adr	r3, .Lfusufault
	str	r3, [r2, #PCB_ONFAULT]

strbt	r1, [r0]
	mov	r0, #0x00000000
	str	r0, [r2, #PCB_ONFAULT]
	RET
END(subyte)

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Editing: fusu.S

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