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
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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]
25 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
26 * Use is subject to license terms.
28 #include <sys/cdefs.h>
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/stack.h>
36 #include <machine/frame.h>
37 #include <machine/md_var.h>
38 #include <machine/reg.h>
41 #include <vm/vm_param.h>
44 #include <machine/atomic.h>
45 #include <machine/db_machdep.h>
46 #include <machine/md_var.h>
47 #include <machine/vmparam.h>
48 #include <machine/stack.h>
49 #include <ddb/db_sym.h>
56 * Wee need some reasonable default to prevent backtrace code
57 * from wandering too far
59 #define MAX_FUNCTION_SIZE 0x10000
60 #define MAX_PROLOGUE_SIZE 0x100
63 uint8_t dtrace_fuword8_nocheck(void *);
64 uint16_t dtrace_fuword16_nocheck(void *);
65 uint32_t dtrace_fuword32_nocheck(void *);
66 uint64_t dtrace_fuword64_nocheck(void *);
69 dtrace_getpcstack(pc_t *pcstack, int pcstack_limit, int aframes,
72 struct unwind_state state;
76 pc_t caller = (pc_t) solaris_cpu[curcpu].cpu_dtrace_caller;
79 pcstack[depth++] = (pc_t) intrpc;
83 __asm __volatile("mov %0, sp" : "=&r" (sp));
85 state.registers[FP] = (uint32_t)__builtin_frame_address(0);
86 state.registers[SP] = sp;
87 state.registers[LR] = (uint32_t)__builtin_return_address(0);
88 state.registers[PC] = (uint32_t)dtrace_getpcstack;
90 while (depth < pcstack_limit) {
93 done = unwind_stack_one(&state, 1);
97 if ((aframes == 0) && (caller != 0)) {
98 pcstack[depth++] = caller;
102 pcstack[depth++] = state.registers[PC];
109 for (; depth < pcstack_limit; depth++) {
115 dtrace_getupcstack(uint64_t *pcstack, int pcstack_limit)
117 printf("IMPLEMENT ME: %s\n", __func__);
121 dtrace_getustackdepth(void)
123 printf("IMPLEMENT ME: %s\n", __func__);
128 dtrace_getufpstack(uint64_t *pcstack, uint64_t *fpstack, int pcstack_limit)
130 printf("IMPLEMENT ME: %s\n", __func__);
135 dtrace_getarg(int arg, int aframes)
137 /* struct arm_frame *fp = (struct arm_frame *)dtrace_getfp();*/
143 dtrace_getstackdepth(int aframes)
145 struct unwind_state state;
151 __asm __volatile("mov %0, sp" : "=&r" (sp));
153 state.registers[FP] = (uint32_t)__builtin_frame_address(0);
154 state.registers[SP] = sp;
155 state.registers[LR] = (uint32_t)__builtin_return_address(0);
156 state.registers[PC] = (uint32_t)dtrace_getstackdepth;
159 done = unwind_stack_one(&state, 1);
166 return depth - aframes;
170 dtrace_getreg(struct trapframe *rp, uint_t reg)
172 printf("IMPLEMENT ME: %s\n", __func__);
178 dtrace_copycheck(uintptr_t uaddr, uintptr_t kaddr, size_t size)
181 if (uaddr + size > VM_MAXUSER_ADDRESS || uaddr + size < uaddr) {
182 DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
183 cpu_core[curcpu].cpuc_dtrace_illval = uaddr;
191 dtrace_copyin(uintptr_t uaddr, uintptr_t kaddr, size_t size,
192 volatile uint16_t *flags)
194 if (dtrace_copycheck(uaddr, kaddr, size))
195 dtrace_copy(uaddr, kaddr, size);
199 dtrace_copyout(uintptr_t kaddr, uintptr_t uaddr, size_t size,
200 volatile uint16_t *flags)
202 if (dtrace_copycheck(uaddr, kaddr, size))
203 dtrace_copy(kaddr, uaddr, size);
207 dtrace_copyinstr(uintptr_t uaddr, uintptr_t kaddr, size_t size,
208 volatile uint16_t *flags)
210 if (dtrace_copycheck(uaddr, kaddr, size))
211 dtrace_copystr(uaddr, kaddr, size, flags);
215 dtrace_copyoutstr(uintptr_t kaddr, uintptr_t uaddr, size_t size,
216 volatile uint16_t *flags)
218 if (dtrace_copycheck(uaddr, kaddr, size))
219 dtrace_copystr(kaddr, uaddr, size, flags);
223 dtrace_fuword8(void *uaddr)
225 if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
226 DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
227 cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
230 return (dtrace_fuword8_nocheck(uaddr));
234 dtrace_fuword16(void *uaddr)
236 if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
237 DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
238 cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
241 return (dtrace_fuword16_nocheck(uaddr));
245 dtrace_fuword32(void *uaddr)
247 if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
248 DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
249 cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
252 return (dtrace_fuword32_nocheck(uaddr));
256 dtrace_fuword64(void *uaddr)
258 if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
259 DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
260 cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
263 return (dtrace_fuword64_nocheck(uaddr));