ReactOS 0.4.15-dev-8393-g61b7fb9
cpu_arm.c
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1/*
2 * File cpu_arm.c
3 *
4 * Copyright (C) 2009 Eric Pouech
5 * Copyright (C) 2010, 2011 André Hentschel
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22#include <assert.h>
23
24#include "ntstatus.h"
25#define WIN32_NO_STATUS
26#include "dbghelp_private.h"
27#include "winternl.h"
28#include "wine/debug.h"
29
31
34{
35 addr->Mode = AddrModeFlat;
36 addr->Segment = 0; /* don't need segment */
37 switch (ca)
38 {
39#ifdef __arm__
40 case cpu_addr_pc: addr->Offset = ctx->Pc; return TRUE;
41 case cpu_addr_stack: addr->Offset = ctx->Sp; return TRUE;
42#ifdef __REACTOS__
43 case cpu_addr_frame: addr->Offset = ctx->R11; return TRUE;
44#else
45 case cpu_addr_frame: addr->Offset = ctx->Fp; return TRUE;
46#endif
47#endif
48 default: addr->Mode = -1;
49 return FALSE;
50 }
51}
52
53#ifdef __arm__
54enum st_mode {stm_start, stm_arm, stm_done};
55
56/* indexes in Reserved array */
57#define __CurrentModeCount 0
58
59#define curr_mode (frame->Reserved[__CurrentModeCount] & 0x0F)
60#define curr_count (frame->Reserved[__CurrentModeCount] >> 4)
61
62#define set_curr_mode(m) {frame->Reserved[__CurrentModeCount] &= ~0x0F; frame->Reserved[__CurrentModeCount] |= (m & 0x0F);}
63#define inc_curr_count() (frame->Reserved[__CurrentModeCount] += 0x10)
64
65/* fetch_next_frame()
66 *
67 * modify (at least) context.Pc using unwind information
68 * either out of debug info (dwarf), or simple Lr trace
69 */
70static BOOL fetch_next_frame(struct cpu_stack_walk* csw, union ctx *pcontext,
71 DWORD_PTR curr_pc)
72{
73 DWORD64 xframe;
74 CONTEXT *context = &pcontext->ctx;
75 DWORD oldReturn = context->Lr;
76
77 if (dwarf2_virtual_unwind(csw, curr_pc, pcontext, &xframe))
78 {
79 context->Sp = xframe;
80 context->Pc = oldReturn;
81 return TRUE;
82 }
83
84 if (context->Pc == context->Lr) return FALSE;
85 context->Pc = oldReturn;
86
87 return TRUE;
88}
89
90static BOOL arm_stack_walk(struct cpu_stack_walk *csw, STACKFRAME64 *frame,
91 union ctx *context)
92{
93 unsigned deltapc = curr_count <= 1 ? 0 : 4;
94
95 /* sanity check */
96 if (curr_mode >= stm_done) return FALSE;
97
98 TRACE("Enter: PC=%s Frame=%s Return=%s Stack=%s Mode=%s Count=%s\n",
99 wine_dbgstr_addr(&frame->AddrPC),
103 curr_mode == stm_start ? "start" : "ARM",
105
106 if (curr_mode == stm_start)
107 {
108 /* Init done */
109 set_curr_mode(stm_arm);
110 frame->AddrReturn.Mode = frame->AddrStack.Mode = AddrModeFlat;
111 /* don't set up AddrStack on first call. Either the caller has set it up, or
112 * we will get it in the next frame
113 */
114 memset(&frame->AddrBStore, 0, sizeof(frame->AddrBStore));
115 }
116 else
117 {
118 if (context->ctx.Sp != frame->AddrStack.Offset) FIXME("inconsistent Stack Pointer\n");
119 if (context->ctx.Pc != frame->AddrPC.Offset) FIXME("inconsistent Program Counter\n");
120
121 if (frame->AddrReturn.Offset == 0) goto done_err;
122 if (!fetch_next_frame(csw, context, frame->AddrPC.Offset - deltapc))
123 goto done_err;
124 }
125
126 memset(&frame->Params, 0, sizeof(frame->Params));
127
128 /* set frame information */
129 frame->AddrStack.Offset = context->ctx.Sp;
130 frame->AddrReturn.Offset = context->ctx.Lr;
131#ifdef __REACTOS__
132 frame->AddrFrame.Offset = context->ctx.R11;
133#else
134 frame->AddrFrame.Offset = context->ctx.Fp;
135#endif
136 frame->AddrPC.Offset = context->ctx.Pc;
137
138 frame->Far = TRUE;
139 frame->Virtual = TRUE;
141
142 TRACE("Leave: PC=%s Frame=%s Return=%s Stack=%s Mode=%s Count=%s FuncTable=%p\n",
143 wine_dbgstr_addr(&frame->AddrPC),
147 curr_mode == stm_start ? "start" : "ARM",
149 frame->FuncTableEntry);
150
151 return TRUE;
152done_err:
154 return FALSE;
155}
156#else
158 union ctx *context)
159{
160 return FALSE;
161}
162#endif
163
164static unsigned arm_map_dwarf_register(unsigned regno, const struct module* module, BOOL eh_frame)
165{
166 if (regno <= 15) return CV_ARM_R0 + regno;
167 if (regno == 128) return CV_ARM_CPSR;
168
169 FIXME("Don't know how to map register %d\n", regno);
170 return CV_ARM_NOREG;
171}
172
173static void *arm_fetch_context_reg(union ctx *pctx, unsigned regno, unsigned *size)
174{
175#ifdef __arm__
176 CONTEXT *ctx = &pctx->ctx;
177
178 switch (regno)
179 {
180 case CV_ARM_R0 + 0: *size = sizeof(ctx->R0); return &ctx->R0;
181 case CV_ARM_R0 + 1: *size = sizeof(ctx->R1); return &ctx->R1;
182 case CV_ARM_R0 + 2: *size = sizeof(ctx->R2); return &ctx->R2;
183 case CV_ARM_R0 + 3: *size = sizeof(ctx->R3); return &ctx->R3;
184 case CV_ARM_R0 + 4: *size = sizeof(ctx->R4); return &ctx->R4;
185 case CV_ARM_R0 + 5: *size = sizeof(ctx->R5); return &ctx->R5;
186 case CV_ARM_R0 + 6: *size = sizeof(ctx->R6); return &ctx->R6;
187 case CV_ARM_R0 + 7: *size = sizeof(ctx->R7); return &ctx->R7;
188 case CV_ARM_R0 + 8: *size = sizeof(ctx->R8); return &ctx->R8;
189 case CV_ARM_R0 + 9: *size = sizeof(ctx->R9); return &ctx->R9;
190 case CV_ARM_R0 + 10: *size = sizeof(ctx->R10); return &ctx->R10;
191#ifdef __REACTOS__
192 case CV_ARM_R0 + 11: *size = sizeof(ctx->R11); return &ctx->R11;
193 case CV_ARM_R0 + 12: *size = sizeof(ctx->R12); return &ctx->R12;
194#else
195 case CV_ARM_R0 + 11: *size = sizeof(ctx->Fp); return &ctx->Fp;
196 case CV_ARM_R0 + 12: *size = sizeof(ctx->Ip); return &ctx->Ip;
197#endif
198
199 case CV_ARM_SP: *size = sizeof(ctx->Sp); return &ctx->Sp;
200 case CV_ARM_LR: *size = sizeof(ctx->Lr); return &ctx->Lr;
201 case CV_ARM_PC: *size = sizeof(ctx->Pc); return &ctx->Pc;
202 case CV_ARM_CPSR: *size = sizeof(ctx->Cpsr); return &ctx->Cpsr;
203 }
204#endif
205 FIXME("Unknown register %x\n", regno);
206 return NULL;
207}
208
209static const char* arm_fetch_regname(unsigned regno)
210{
211 switch (regno)
212 {
213 case CV_ARM_R0 + 0: return "r0";
214 case CV_ARM_R0 + 1: return "r1";
215 case CV_ARM_R0 + 2: return "r2";
216 case CV_ARM_R0 + 3: return "r3";
217 case CV_ARM_R0 + 4: return "r4";
218 case CV_ARM_R0 + 5: return "r5";
219 case CV_ARM_R0 + 6: return "r6";
220 case CV_ARM_R0 + 7: return "r7";
221 case CV_ARM_R0 + 8: return "r8";
222 case CV_ARM_R0 + 9: return "r9";
223 case CV_ARM_R0 + 10: return "r10";
224 case CV_ARM_R0 + 11: return "r11";
225 case CV_ARM_R0 + 12: return "r12";
226
227 case CV_ARM_SP: return "sp";
228 case CV_ARM_LR: return "lr";
229 case CV_ARM_PC: return "pc";
230 case CV_ARM_CPSR: return "cpsr";
231 }
232 FIXME("Unknown register %x\n", regno);
233 return NULL;
234}
235
236static BOOL arm_fetch_minidump_thread(struct dump_context* dc, unsigned index, unsigned flags, const CONTEXT* ctx)
237{
238 if (ctx->ContextFlags && (flags & ThreadWriteInstructionWindow))
239 {
240 /* FIXME: crop values across module boundaries, */
241#ifdef __arm__
242 ULONG base = ctx->Pc <= 0x80 ? 0 : ctx->Pc - 0x80;
243 minidump_add_memory_block(dc, base, ctx->Pc + 0x80 - base, 0);
244#endif
245 }
246
247 return TRUE;
248}
249
250static BOOL arm_fetch_minidump_module(struct dump_context* dc, unsigned index, unsigned flags)
251{
252 /* FIXME: actually, we should probably take care of FPO data, unless it's stored in
253 * function table minidump stream
254 */
255 return FALSE;
256}
257
260 4,
261 CV_ARM_R0 + 11,
264 NULL,
270};
#define WINE_DEFAULT_DEBUG_CHANNEL(t)
Definition: precomp.h:23
#define FIXME(fmt,...)
Definition: precomp.h:53
static void * arm_fetch_context_reg(union ctx *pctx, unsigned regno, unsigned *size)
Definition: cpu_arm.c:173
static BOOL arm_fetch_minidump_module(struct dump_context *dc, unsigned index, unsigned flags)
Definition: cpu_arm.c:250
static unsigned arm_map_dwarf_register(unsigned regno, const struct module *module, BOOL eh_frame)
Definition: cpu_arm.c:164
DECLSPEC_HIDDEN struct cpu cpu_arm
Definition: cpu_arm.c:258
static BOOL arm_stack_walk(struct cpu_stack_walk *csw, STACKFRAME64 *frame, union ctx *context)
Definition: cpu_arm.c:157
static BOOL arm_fetch_minidump_thread(struct dump_context *dc, unsigned index, unsigned flags, const CONTEXT *ctx)
Definition: cpu_arm.c:236
static BOOL arm_get_addr(HANDLE hThread, const CONTEXT *ctx, enum cpu_addr ca, ADDRESS64 *addr)
Definition: cpu_arm.c:32
static const char * arm_fetch_regname(unsigned regno)
Definition: cpu_arm.c:209
#define set_curr_mode(m)
Definition: cpu_i386.c:151
st_mode
Definition: cpu_i386.c:139
@ stm_start
Definition: cpu_i386.c:139
@ stm_done
Definition: cpu_i386.c:139
#define curr_count
Definition: cpu_i386.c:147
#define curr_mode
Definition: cpu_i386.c:146
#define inc_curr_count()
Definition: cpu_i386.c:152
cpu_addr
@ cpu_addr_frame
@ cpu_addr_pc
@ cpu_addr_stack
BOOL dwarf2_virtual_unwind(struct cpu_stack_walk *csw, DWORD_PTR ip, union ctx *ctx, DWORD64 *cfa) DECLSPEC_HIDDEN
Definition: dwarf.c:3258
void minidump_add_memory_block(struct dump_context *dc, ULONG64 base, ULONG size, ULONG rva) DECLSPEC_HIDDEN
Definition: minidump.c:355
#define NULL
Definition: types.h:112
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
#define DECLSPEC_HIDDEN
Definition: precomp.h:8
static const WCHAR ca[]
Definition: main.c:455
#define IMAGE_FILE_MACHINE_ARMNT
Definition: compat.h:127
@ AddrModeFlat
Definition: compat.h:1159
static __inline const char * wine_dbgstr_longlong(ULONGLONG ll)
Definition: compat.h:49
@ CV_ARM_NOREG
Definition: compat.h:1969
@ CV_ARM_R0
Definition: compat.h:1970
@ CV_ARM_CPSR
Definition: compat.h:1974
@ CV_ARM_PC
Definition: compat.h:1973
@ CV_ARM_LR
Definition: compat.h:1972
@ CV_ARM_SP
Definition: compat.h:1971
@ ThreadWriteInstructionWindow
Definition: compat.h:1150
const char * wine_dbgstr_addr(const ADDRESS64 *addr)
Definition: dbghelp.c:142
unsigned int BOOL
Definition: ntddk_ex.h:94
unsigned long DWORD
Definition: ntddk_ex.h:95
GLsizeiptr size
Definition: glext.h:5919
GLuint index
Definition: glext.h:6031
GLbitfield flags
Definition: glext.h:7161
GLenum const GLvoid * addr
Definition: glext.h:9621
static const WCHAR dc[]
HANDLE hThread
Definition: wizard.c:28
#define memset(x, y, z)
Definition: compat.h:39
#define TRACE(s)
Definition: solgame.cpp:4
PVOID FuncTableEntry
Definition: compat.h:1406
ADDRESS64 AddrBStore
Definition: compat.h:1405
ADDRESS64 AddrStack
Definition: compat.h:1404
ADDRESS64 AddrFrame
Definition: compat.h:1403
ADDRESS64 AddrPC
Definition: compat.h:1401
DWORD64 Params[4]
Definition: compat.h:1407
BOOL Virtual
Definition: compat.h:1409
ADDRESS64 AddrReturn
Definition: compat.h:1402
ADDRESS_MODE Mode
Definition: compat.h:1176
DWORD64 Offset
Definition: compat.h:1174
Definition: http.c:7252
uint32_t DWORD_PTR
Definition: typedefs.h:65
uint64_t DWORD64
Definition: typedefs.h:67
uint32_t ULONG
Definition: typedefs.h:59
CONTEXT ctx