1fcb56067SGeorge V. Neville-Neil /*
2fcb56067SGeorge V. Neville-Neil * CDDL HEADER START
3fcb56067SGeorge V. Neville-Neil *
4fcb56067SGeorge V. Neville-Neil * The contents of this file are subject to the terms of the
5fcb56067SGeorge V. Neville-Neil * Common Development and Distribution License, Version 1.0 only
6fcb56067SGeorge V. Neville-Neil * (the "License"). You may not use this file except in compliance
7fcb56067SGeorge V. Neville-Neil * with the License.
8fcb56067SGeorge V. Neville-Neil *
9fcb56067SGeorge V. Neville-Neil * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10fcb56067SGeorge V. Neville-Neil * or http://www.opensolaris.org/os/licensing.
11fcb56067SGeorge V. Neville-Neil * See the License for the specific language governing permissions
12fcb56067SGeorge V. Neville-Neil * and limitations under the License.
13fcb56067SGeorge V. Neville-Neil *
14fcb56067SGeorge V. Neville-Neil * When distributing Covered Code, include this CDDL HEADER in each
15fcb56067SGeorge V. Neville-Neil * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16fcb56067SGeorge V. Neville-Neil * If applicable, add the following below this CDDL HEADER, with the
17fcb56067SGeorge V. Neville-Neil * fields enclosed by brackets "[]" replaced with your own identifying
18fcb56067SGeorge V. Neville-Neil * information: Portions Copyright [yyyy] [name of copyright owner]
19fcb56067SGeorge V. Neville-Neil *
20fcb56067SGeorge V. Neville-Neil * CDDL HEADER END
21fcb56067SGeorge V. Neville-Neil */
22fcb56067SGeorge V. Neville-Neil /*
23fcb56067SGeorge V. Neville-Neil * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
24fcb56067SGeorge V. Neville-Neil * Use is subject to license terms.
25fcb56067SGeorge V. Neville-Neil */
26fcb56067SGeorge V. Neville-Neil #include <sys/cdefs.h>
27fcb56067SGeorge V. Neville-Neil
28fcb56067SGeorge V. Neville-Neil #include <sys/param.h>
29fcb56067SGeorge V. Neville-Neil #include <sys/systm.h>
30fcb56067SGeorge V. Neville-Neil #include <sys/kernel.h>
31fcb56067SGeorge V. Neville-Neil #include <sys/stack.h>
32fcb56067SGeorge V. Neville-Neil #include <sys/pcpu.h>
33fcb56067SGeorge V. Neville-Neil
34fcb56067SGeorge V. Neville-Neil #include <machine/frame.h>
35fcb56067SGeorge V. Neville-Neil #include <machine/md_var.h>
36fcb56067SGeorge V. Neville-Neil
37fcb56067SGeorge V. Neville-Neil #include <vm/vm.h>
38fcb56067SGeorge V. Neville-Neil #include <vm/vm_param.h>
39fcb56067SGeorge V. Neville-Neil #include <vm/pmap.h>
40fcb56067SGeorge V. Neville-Neil
41fcb56067SGeorge V. Neville-Neil #include <machine/atomic.h>
42fcb56067SGeorge V. Neville-Neil #include <machine/db_machdep.h>
43fcb56067SGeorge V. Neville-Neil #include <machine/md_var.h>
44fcb56067SGeorge V. Neville-Neil #include <machine/stack.h>
45fcb56067SGeorge V. Neville-Neil #include <ddb/db_sym.h>
46fcb56067SGeorge V. Neville-Neil #include <ddb/ddb.h>
47fcb56067SGeorge V. Neville-Neil #include <sys/kdb.h>
48fcb56067SGeorge V. Neville-Neil
49fcb56067SGeorge V. Neville-Neil #include "regset.h"
50fcb56067SGeorge V. Neville-Neil
51fcb56067SGeorge V. Neville-Neil uint8_t dtrace_fuword8_nocheck(void *);
52fcb56067SGeorge V. Neville-Neil uint16_t dtrace_fuword16_nocheck(void *);
53fcb56067SGeorge V. Neville-Neil uint32_t dtrace_fuword32_nocheck(void *);
54fcb56067SGeorge V. Neville-Neil uint64_t dtrace_fuword64_nocheck(void *);
55fcb56067SGeorge V. Neville-Neil
56fcb56067SGeorge V. Neville-Neil void
dtrace_getpcstack(pc_t * pcstack,int pcstack_limit,int aframes,uint32_t * intrpc)57fcb56067SGeorge V. Neville-Neil dtrace_getpcstack(pc_t *pcstack, int pcstack_limit, int aframes,
58fcb56067SGeorge V. Neville-Neil uint32_t *intrpc)
59fcb56067SGeorge V. Neville-Neil {
60aeca5b8bSAndrew Turner struct unwind_state state;
61aeca5b8bSAndrew Turner register_t sp;
62fcb56067SGeorge V. Neville-Neil int scp_offset;
63fcb56067SGeorge V. Neville-Neil int depth = 0;
64fcb56067SGeorge V. Neville-Neil
65fcb56067SGeorge V. Neville-Neil if (intrpc != 0)
66fcb56067SGeorge V. Neville-Neil pcstack[depth++] = (pc_t) intrpc;
67fcb56067SGeorge V. Neville-Neil
68fcb56067SGeorge V. Neville-Neil aframes++;
69fcb56067SGeorge V. Neville-Neil
70aeca5b8bSAndrew Turner __asm __volatile("mov %0, sp" : "=&r" (sp));
71fcb56067SGeorge V. Neville-Neil
72aeca5b8bSAndrew Turner state.registers[FP] = (uint32_t)__builtin_frame_address(0);
73aeca5b8bSAndrew Turner state.registers[SP] = sp;
74aeca5b8bSAndrew Turner state.registers[LR] = (uint32_t)__builtin_return_address(0);
75aeca5b8bSAndrew Turner state.registers[PC] = (uint32_t)dtrace_getpcstack;
76fcb56067SGeorge V. Neville-Neil
77aeca5b8bSAndrew Turner while (depth < pcstack_limit) {
78aeca5b8bSAndrew Turner int done;
79aeca5b8bSAndrew Turner
80aeca5b8bSAndrew Turner done = unwind_stack_one(&state, 1);
81fcb56067SGeorge V. Neville-Neil
822a1d3deeSRobert Watson /*
832a1d3deeSRobert Watson * NB: Unlike some other architectures, we don't need to
842a1d3deeSRobert Watson * explicitly insert cpu_dtrace_caller as it appears in the
852a1d3deeSRobert Watson * normal kernel stack trace rather than a special trap frame.
862a1d3deeSRobert Watson */
87fcb56067SGeorge V. Neville-Neil if (aframes > 0) {
88fcb56067SGeorge V. Neville-Neil aframes--;
892a1d3deeSRobert Watson } else {
90aeca5b8bSAndrew Turner pcstack[depth++] = state.registers[PC];
91fcb56067SGeorge V. Neville-Neil }
92fcb56067SGeorge V. Neville-Neil
93aeca5b8bSAndrew Turner if (done)
94fcb56067SGeorge V. Neville-Neil break;
95fcb56067SGeorge V. Neville-Neil }
96fcb56067SGeorge V. Neville-Neil
97fcb56067SGeorge V. Neville-Neil for (; depth < pcstack_limit; depth++) {
98fcb56067SGeorge V. Neville-Neil pcstack[depth] = 0;
99fcb56067SGeorge V. Neville-Neil }
100fcb56067SGeorge V. Neville-Neil }
101fcb56067SGeorge V. Neville-Neil
102fcb56067SGeorge V. Neville-Neil void
dtrace_getupcstack(uint64_t * pcstack,int pcstack_limit)103fcb56067SGeorge V. Neville-Neil dtrace_getupcstack(uint64_t *pcstack, int pcstack_limit)
104fcb56067SGeorge V. Neville-Neil {
105fcb56067SGeorge V. Neville-Neil printf("IMPLEMENT ME: %s\n", __func__);
106fcb56067SGeorge V. Neville-Neil }
107fcb56067SGeorge V. Neville-Neil
108fcb56067SGeorge V. Neville-Neil int
dtrace_getustackdepth(void)109fcb56067SGeorge V. Neville-Neil dtrace_getustackdepth(void)
110fcb56067SGeorge V. Neville-Neil {
111fcb56067SGeorge V. Neville-Neil printf("IMPLEMENT ME: %s\n", __func__);
112fcb56067SGeorge V. Neville-Neil return (0);
113fcb56067SGeorge V. Neville-Neil }
114fcb56067SGeorge V. Neville-Neil
115fcb56067SGeorge V. Neville-Neil void
dtrace_getufpstack(uint64_t * pcstack,uint64_t * fpstack,int pcstack_limit)116fcb56067SGeorge V. Neville-Neil dtrace_getufpstack(uint64_t *pcstack, uint64_t *fpstack, int pcstack_limit)
117fcb56067SGeorge V. Neville-Neil {
118fcb56067SGeorge V. Neville-Neil printf("IMPLEMENT ME: %s\n", __func__);
119fcb56067SGeorge V. Neville-Neil }
120fcb56067SGeorge V. Neville-Neil
121fcb56067SGeorge V. Neville-Neil /*ARGSUSED*/
122fcb56067SGeorge V. Neville-Neil uint64_t
dtrace_getarg(int arg,int aframes)123fcb56067SGeorge V. Neville-Neil dtrace_getarg(int arg, int aframes)
124fcb56067SGeorge V. Neville-Neil {
125fcb56067SGeorge V. Neville-Neil /* struct arm_frame *fp = (struct arm_frame *)dtrace_getfp();*/
126fcb56067SGeorge V. Neville-Neil
127fcb56067SGeorge V. Neville-Neil return (0);
128fcb56067SGeorge V. Neville-Neil }
129fcb56067SGeorge V. Neville-Neil
130fcb56067SGeorge V. Neville-Neil int
dtrace_getstackdepth(int aframes)131fcb56067SGeorge V. Neville-Neil dtrace_getstackdepth(int aframes)
132fcb56067SGeorge V. Neville-Neil {
133aeca5b8bSAndrew Turner struct unwind_state state;
134aeca5b8bSAndrew Turner register_t sp;
135fcb56067SGeorge V. Neville-Neil int scp_offset;
136aeca5b8bSAndrew Turner int done = 0;
137fcb56067SGeorge V. Neville-Neil int depth = 1;
138fcb56067SGeorge V. Neville-Neil
139aeca5b8bSAndrew Turner __asm __volatile("mov %0, sp" : "=&r" (sp));
140fcb56067SGeorge V. Neville-Neil
141aeca5b8bSAndrew Turner state.registers[FP] = (uint32_t)__builtin_frame_address(0);
142aeca5b8bSAndrew Turner state.registers[SP] = sp;
143aeca5b8bSAndrew Turner state.registers[LR] = (uint32_t)__builtin_return_address(0);
144aeca5b8bSAndrew Turner state.registers[PC] = (uint32_t)dtrace_getstackdepth;
145fcb56067SGeorge V. Neville-Neil
146aeca5b8bSAndrew Turner do {
147aeca5b8bSAndrew Turner done = unwind_stack_one(&state, 1);
148fcb56067SGeorge V. Neville-Neil depth++;
149aeca5b8bSAndrew Turner } while (!done);
150fcb56067SGeorge V. Neville-Neil
151fcb56067SGeorge V. Neville-Neil if (depth < aframes)
152fcb56067SGeorge V. Neville-Neil return 0;
153fcb56067SGeorge V. Neville-Neil else
154fcb56067SGeorge V. Neville-Neil return depth - aframes;
155fcb56067SGeorge V. Neville-Neil }
156fcb56067SGeorge V. Neville-Neil
157fcb56067SGeorge V. Neville-Neil ulong_t
dtrace_getreg(struct trapframe * frame,uint_t reg)15898ab9802SChristos Margiolis dtrace_getreg(struct trapframe *frame, uint_t reg)
159fcb56067SGeorge V. Neville-Neil {
160fcb56067SGeorge V. Neville-Neil printf("IMPLEMENT ME: %s\n", __func__);
161fcb56067SGeorge V. Neville-Neil
162fcb56067SGeorge V. Neville-Neil return (0);
163fcb56067SGeorge V. Neville-Neil }
164fcb56067SGeorge V. Neville-Neil
165fcb56067SGeorge V. Neville-Neil static int
dtrace_copycheck(uintptr_t uaddr,uintptr_t kaddr,size_t size)166fcb56067SGeorge V. Neville-Neil dtrace_copycheck(uintptr_t uaddr, uintptr_t kaddr, size_t size)
167fcb56067SGeorge V. Neville-Neil {
168fcb56067SGeorge V. Neville-Neil
169fcb56067SGeorge V. Neville-Neil if (uaddr + size > VM_MAXUSER_ADDRESS || uaddr + size < uaddr) {
170fcb56067SGeorge V. Neville-Neil DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
171fcb56067SGeorge V. Neville-Neil cpu_core[curcpu].cpuc_dtrace_illval = uaddr;
172fcb56067SGeorge V. Neville-Neil return (0);
173fcb56067SGeorge V. Neville-Neil }
174fcb56067SGeorge V. Neville-Neil
175fcb56067SGeorge V. Neville-Neil return (1);
176fcb56067SGeorge V. Neville-Neil }
177fcb56067SGeorge V. Neville-Neil
178fcb56067SGeorge V. Neville-Neil void
dtrace_copyin(uintptr_t uaddr,uintptr_t kaddr,size_t size,volatile uint16_t * flags)179fcb56067SGeorge V. Neville-Neil dtrace_copyin(uintptr_t uaddr, uintptr_t kaddr, size_t size,
180fcb56067SGeorge V. Neville-Neil volatile uint16_t *flags)
181fcb56067SGeorge V. Neville-Neil {
182fcb56067SGeorge V. Neville-Neil if (dtrace_copycheck(uaddr, kaddr, size))
183fcb56067SGeorge V. Neville-Neil dtrace_copy(uaddr, kaddr, size);
184fcb56067SGeorge V. Neville-Neil }
185fcb56067SGeorge V. Neville-Neil
186fcb56067SGeorge V. Neville-Neil void
dtrace_copyout(uintptr_t kaddr,uintptr_t uaddr,size_t size,volatile uint16_t * flags)187fcb56067SGeorge V. Neville-Neil dtrace_copyout(uintptr_t kaddr, uintptr_t uaddr, size_t size,
188fcb56067SGeorge V. Neville-Neil volatile uint16_t *flags)
189fcb56067SGeorge V. Neville-Neil {
190fcb56067SGeorge V. Neville-Neil if (dtrace_copycheck(uaddr, kaddr, size))
191fcb56067SGeorge V. Neville-Neil dtrace_copy(kaddr, uaddr, size);
192fcb56067SGeorge V. Neville-Neil }
193fcb56067SGeorge V. Neville-Neil
194fcb56067SGeorge V. Neville-Neil void
dtrace_copyinstr(uintptr_t uaddr,uintptr_t kaddr,size_t size,volatile uint16_t * flags)195fcb56067SGeorge V. Neville-Neil dtrace_copyinstr(uintptr_t uaddr, uintptr_t kaddr, size_t size,
196fcb56067SGeorge V. Neville-Neil volatile uint16_t *flags)
197fcb56067SGeorge V. Neville-Neil {
198fcb56067SGeorge V. Neville-Neil if (dtrace_copycheck(uaddr, kaddr, size))
199fcb56067SGeorge V. Neville-Neil dtrace_copystr(uaddr, kaddr, size, flags);
200fcb56067SGeorge V. Neville-Neil }
201fcb56067SGeorge V. Neville-Neil
202fcb56067SGeorge V. Neville-Neil void
dtrace_copyoutstr(uintptr_t kaddr,uintptr_t uaddr,size_t size,volatile uint16_t * flags)203fcb56067SGeorge V. Neville-Neil dtrace_copyoutstr(uintptr_t kaddr, uintptr_t uaddr, size_t size,
204fcb56067SGeorge V. Neville-Neil volatile uint16_t *flags)
205fcb56067SGeorge V. Neville-Neil {
206fcb56067SGeorge V. Neville-Neil if (dtrace_copycheck(uaddr, kaddr, size))
207fcb56067SGeorge V. Neville-Neil dtrace_copystr(kaddr, uaddr, size, flags);
208fcb56067SGeorge V. Neville-Neil }
209fcb56067SGeorge V. Neville-Neil
210fcb56067SGeorge V. Neville-Neil uint8_t
dtrace_fuword8(void * uaddr)211fcb56067SGeorge V. Neville-Neil dtrace_fuword8(void *uaddr)
212fcb56067SGeorge V. Neville-Neil {
213fcb56067SGeorge V. Neville-Neil if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
214fcb56067SGeorge V. Neville-Neil DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
215fcb56067SGeorge V. Neville-Neil cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
216fcb56067SGeorge V. Neville-Neil return (0);
217fcb56067SGeorge V. Neville-Neil }
218fcb56067SGeorge V. Neville-Neil return (dtrace_fuword8_nocheck(uaddr));
219fcb56067SGeorge V. Neville-Neil }
220fcb56067SGeorge V. Neville-Neil
221fcb56067SGeorge V. Neville-Neil uint16_t
dtrace_fuword16(void * uaddr)222fcb56067SGeorge V. Neville-Neil dtrace_fuword16(void *uaddr)
223fcb56067SGeorge V. Neville-Neil {
224fcb56067SGeorge V. Neville-Neil if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
225fcb56067SGeorge V. Neville-Neil DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
226fcb56067SGeorge V. Neville-Neil cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
227fcb56067SGeorge V. Neville-Neil return (0);
228fcb56067SGeorge V. Neville-Neil }
229fcb56067SGeorge V. Neville-Neil return (dtrace_fuword16_nocheck(uaddr));
230fcb56067SGeorge V. Neville-Neil }
231fcb56067SGeorge V. Neville-Neil
232fcb56067SGeorge V. Neville-Neil uint32_t
dtrace_fuword32(void * uaddr)233fcb56067SGeorge V. Neville-Neil dtrace_fuword32(void *uaddr)
234fcb56067SGeorge V. Neville-Neil {
235fcb56067SGeorge V. Neville-Neil if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
236fcb56067SGeorge V. Neville-Neil DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
237fcb56067SGeorge V. Neville-Neil cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
238fcb56067SGeorge V. Neville-Neil return (0);
239fcb56067SGeorge V. Neville-Neil }
240fcb56067SGeorge V. Neville-Neil return (dtrace_fuword32_nocheck(uaddr));
241fcb56067SGeorge V. Neville-Neil }
242fcb56067SGeorge V. Neville-Neil
243fcb56067SGeorge V. Neville-Neil uint64_t
dtrace_fuword64(void * uaddr)244fcb56067SGeorge V. Neville-Neil dtrace_fuword64(void *uaddr)
245fcb56067SGeorge V. Neville-Neil {
246fcb56067SGeorge V. Neville-Neil if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
247fcb56067SGeorge V. Neville-Neil DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
248fcb56067SGeorge V. Neville-Neil cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
249fcb56067SGeorge V. Neville-Neil return (0);
250fcb56067SGeorge V. Neville-Neil }
251fcb56067SGeorge V. Neville-Neil return (dtrace_fuword64_nocheck(uaddr));
252fcb56067SGeorge V. Neville-Neil }
253