| dtrace_asm.S (246275) | dtrace_asm.S (248457) |
|---|---|
| 1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * --- 7 unchanged lines hidden (view full) --- 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 * 22 * Portions Copyright 2012,2013 Justin Hibbits <jhibbits@freebsd.org> 23 * | 1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * --- 7 unchanged lines hidden (view full) --- 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 * 22 * Portions Copyright 2012,2013 Justin Hibbits <jhibbits@freebsd.org> 23 * |
| 24 * $FreeBSD: head/sys/cddl/dev/dtrace/powerpc/dtrace_asm.S 246275 2013-02-03 00:19:34Z jhibbits $ | 24 * $FreeBSD: head/sys/cddl/dev/dtrace/powerpc/dtrace_asm.S 248457 2013-03-18 05:30:18Z jhibbits $ |
| 25 */ 26/* 27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31#include "assym.s" 32 --- 47 unchanged lines hidden (view full) --- 80 81/* 82uint32_t dtrace_cas32(uint32_t *target, uint32_t cmp, uint32_t new) 83*/ 84ASENTRY_NOPROF(dtrace_cas32) 851: 86 lwarx %r0,0,%r3 87 cmpw %r4,%r0 | 25 */ 26/* 27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31#include "assym.s" 32 --- 47 unchanged lines hidden (view full) --- 80 81/* 82uint32_t dtrace_cas32(uint32_t *target, uint32_t cmp, uint32_t new) 83*/ 84ASENTRY_NOPROF(dtrace_cas32) 851: 86 lwarx %r0,0,%r3 87 cmpw %r4,%r0 |
| 88 bne 2f | 88 bne 2f |
| 89 stwcx. %r5,0,%r3 | 89 stwcx. %r5,0,%r3 |
| 90 bne 1b 912: mr %r3,%r0 | 90 bne 1b 912: mr %r3,%r0 |
| 92 blr 93END(dtrace_cas32) 94 95/* 96void * 97dtrace_casptr(void *target, void *cmp, void *new) 98*/ 99ASENTRY_NOPROF(dtrace_casptr) 1001: 101 lwarx %r0,0,%r3 102 cmpw %r4,%r0 | 92 blr 93END(dtrace_cas32) 94 95/* 96void * 97dtrace_casptr(void *target, void *cmp, void *new) 98*/ 99ASENTRY_NOPROF(dtrace_casptr) 1001: 101 lwarx %r0,0,%r3 102 cmpw %r4,%r0 |
| 103 bne 2f | 103 bne 2f |
| 104 stwcx. %r5,0,%r3 | 104 stwcx. %r5,0,%r3 |
| 105 bne 1b 1062: mr %r3,%r0 | 105 bne 1b 1062: mr %r3,%r0 |
| 107 blr 108END(dtrace_casptr) 109 110 111/* | 107 blr 108END(dtrace_casptr) 109 110 111/* |
| 112uintptr_t 113dtrace_fulword(void *addr) 114*/ 115ASENTRY_NOPROF(dtrace_fulword) 116END(dtrace_fulword) 117 118/* | |
| 119XXX: unoptimized 120void 121dtrace_copy(uintptr_t src, uintptr_t dest, size_t size) 122*/ 123ASENTRY_NOPROF(dtrace_copy) 124 addme %r7,%r3 125 addme %r8,%r4 1261: 127 lbzu %r3,1(%r7) 128 stbu %r3,1(%r8) 129 addme %r5,%r5 | 112XXX: unoptimized 113void 114dtrace_copy(uintptr_t src, uintptr_t dest, size_t size) 115*/ 116ASENTRY_NOPROF(dtrace_copy) 117 addme %r7,%r3 118 addme %r8,%r4 1191: 120 lbzu %r3,1(%r7) 121 stbu %r3,1(%r8) 122 addme %r5,%r5 |
| 130 beq 2f | 123 beq 2f |
| 1312: 132 blr 133END(dtrace_copy) 134 135/* 136void 137dtrace_copystr(uintptr_t uaddr, uintptr_t kaddr, size_t size, 138 volatile uint16_t *flags) 139*/ 140ASENTRY_NOPROF(dtrace_copystr) 141 addme %r7,%r3 142 addme %r8,%r4 1431: 144 lbzu %r3,1(%r7) 145 stbu %r3,1(%r8) 146 addme %r5,%r5 | 1242: 125 blr 126END(dtrace_copy) 127 128/* 129void 130dtrace_copystr(uintptr_t uaddr, uintptr_t kaddr, size_t size, 131 volatile uint16_t *flags) 132*/ 133ASENTRY_NOPROF(dtrace_copystr) 134 addme %r7,%r3 135 addme %r8,%r4 1361: 137 lbzu %r3,1(%r7) 138 stbu %r3,1(%r8) 139 addme %r5,%r5 |
| 147 beq 2f 148 or %r3,%r3,%r3 149 beq 2f | 140 beq 2f 141 or %r3,%r3,%r3 142 beq 2f |
| 150 andi. %r0,%r5,0x0fff | 143 andi. %r0,%r5,0x0fff |
| 151 beq 2f 152 lwz %r0,0(%r6) | 144 beq 2f 145 lwz %r0,0(%r6) |
| 153 andi. %r0,%r0,CPU_DTRACE_BADADDR | 146 andi. %r0,%r0,CPU_DTRACE_BADADDR |
| 154 beq 1b | 147 beq 1b |
| 1552: 156 blr 157END(dtrace_copystr) 158 159/* | 1482: 149 blr 150END(dtrace_copystr) 151 152/* |
| 160void dtrace_invop_init(void) 161*/ 162ASENTRY_NOPROF(dtrace_invop_init) 163 /* XXX: impement it properly -- implement dtrace_invop_start */ 164 li %r0,0 165 li %r3,dtrace_invop_jump_addr@l 166 addis %r3,%r3,dtrace_invop_jump_addr@ha 167 stw %r0,0(%r3) 168 blr 169END(dtrace_invop_init) 170 171/* 172void dtrace_invop_uninit(void) 173*/ 174ASENTRY_NOPROF(dtrace_invop_uninit) 175 li %r0,0 176 li %r3,dtrace_invop_jump_addr@l 177 addis %r3,%r3,dtrace_invop_jump_addr@ha 178 stw %r0,0(%r3) 179 blr 180END(dtrace_invop_uninit) 181 182/* | |
| 183 * The panic() and cmn_err() functions invoke vpanic() as a common entry point 184 * into the panic code implemented in panicsys(). vpanic() is responsible 185 * for passing through the format string and arguments, and constructing a 186 * regs structure on the stack into which it saves the current register 187 * values. If we are not dying due to a fatal trap, these registers will 188 * then be preserved in panicbuf as the current processor state. Before 189 * invoking panicsys(), vpanic() activates the first panic trigger (see 190 * common/os/panic.c) and switches to the panic_stack if successful. Note that --- 39 unchanged lines hidden --- | 153 * The panic() and cmn_err() functions invoke vpanic() as a common entry point 154 * into the panic code implemented in panicsys(). vpanic() is responsible 155 * for passing through the format string and arguments, and constructing a 156 * regs structure on the stack into which it saves the current register 157 * values. If we are not dying due to a fatal trap, these registers will 158 * then be preserved in panicbuf as the current processor state. Before 159 * invoking panicsys(), vpanic() activates the first panic trigger (see 160 * common/os/panic.c) and switches to the panic_stack if successful. Note that --- 39 unchanged lines hidden --- |