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[wine/multimedia.git] / programs / winedbg / be_arm64.c
blob8c4b58edcb44d087f6637b9e465dc13faa2bc890
1 /*
2 * Debugger ARM64 specific functions
3 *
4 * Copyright 2010-2013 André Hentschel
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "debugger.h"
22
23 #if defined(__aarch64__) && !defined(__AARCH64EB__)
24
25 static BOOL be_arm64_get_addr(HANDLE hThread, const CONTEXT* ctx,
26 enum be_cpu_addr bca, ADDRESS64* addr)
27 {
28 switch (bca)
29 {
30 case be_cpu_addr_pc:
31 return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->Pc);
32 case be_cpu_addr_stack:
33 return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->Sp);
34 case be_cpu_addr_frame:
35 return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->X29);
36 break;
37 }
38 return FALSE;
39 }
40
41 static BOOL be_arm64_get_register_info(int regno, enum be_cpu_addr* kind)
42 {
43 switch (regno)
44 {
45 case CV_ARM64_PC: *kind = be_cpu_addr_pc; return TRUE;
46 case CV_ARM64_SP: *kind = be_cpu_addr_stack; return TRUE;
47 case CV_ARM64_X0 + 29: *kind = be_cpu_addr_frame; return TRUE;
48 }
49 return FALSE;
50 }
51
52 static void be_arm64_single_step(CONTEXT* ctx, BOOL enable)
53 {
54 dbg_printf("be_arm64_single_step: not done\n");
55 }
56
57 static void be_arm64_print_context(HANDLE hThread, const CONTEXT* ctx, int all_regs)
58 {
59 static const char condflags[] = "NZCV";
60 int i;
61 char buf[8];
62
63 switch (ctx->PState & 0x0f)
64 {
65 case 0: strcpy(buf, "EL0t"); break;
66 case 4: strcpy(buf, "EL1t"); break;
67 case 5: strcpy(buf, "EL1t"); break;
68 case 8: strcpy(buf, "EL2t"); break;
69 case 9: strcpy(buf, "EL2t"); break;
70 case 12: strcpy(buf, "EL3t"); break;
71 case 13: strcpy(buf, "EL3t"); break;
72 default: strcpy(buf, "UNKNWN"); break;
73 }
74
75 dbg_printf("Register dump:\n");
76 dbg_printf("%s %s Mode\n", (ctx->PState & 0x10) ? "ARM" : "ARM64", buf);
77
78 strcpy(buf, condflags);
79 for (i = 0; buf[i]; i++)
80 if (!((ctx->PState >> 26) & (1 << (sizeof(condflags) - i))))
81 buf[i] = '-';
82
83 dbg_printf(" Pc:%016lx Sp:%016lx Pstate:%016lx(%s)\n",
84 ctx->Pc, ctx->Sp, ctx->PState, buf);
85 dbg_printf(" x0: %016lx x1: %016lx x2: %016lx x3: %016lx x4: %016lx\n",
86 ctx->X0, ctx->X1, ctx->X2, ctx->X3, ctx->X4);
87 dbg_printf(" x5: %016lx x6: %016lx x7: %016lx x8: %016lx x9: %016lx\n",
88 ctx->X5, ctx->X6, ctx->X7, ctx->X8, ctx->X9);
89 dbg_printf(" x10:%016lx x11:%016lx x12:%016lx x13:%016lx x14:%016lx\n",
90 ctx->X10, ctx->X11, ctx->X12, ctx->X13, ctx->X14);
91 dbg_printf(" x15:%016lx x16:%016lx x17:%016lx x18:%016lx x19:%016lx\n",
92 ctx->X15, ctx->X16, ctx->X17, ctx->X18, ctx->X19);
93 dbg_printf(" x20:%016lx x21:%016lx x22:%016lx x23:%016lx x24:%016lx\n",
94 ctx->X20, ctx->X21, ctx->X22, ctx->X23, ctx->X24);
95 dbg_printf(" x25:%016lx x26:%016lx x27:%016lx x28:%016lx x29:%016lx\n",
96 ctx->X25, ctx->X26, ctx->X27, ctx->X28, ctx->X29);
97 dbg_printf(" x30:%016lx\n", ctx->X30);
98
99 if (all_regs) dbg_printf( "Floating point ARM64 dump not implemented\n" );
100 }
101
102 static void be_arm64_print_segment_info(HANDLE hThread, const CONTEXT* ctx)
103 {
104 }
105
106 static struct dbg_internal_var be_arm64_ctx[] =
107 {
108 {CV_ARM64_X0 + 0, "x0", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X0), dbg_itype_unsigned_long_int},
109 {CV_ARM64_X0 + 1, "x1", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X1), dbg_itype_unsigned_long_int},
110 {CV_ARM64_X0 + 2, "x2", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X2), dbg_itype_unsigned_long_int},
111 {CV_ARM64_X0 + 3, "x3", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X3), dbg_itype_unsigned_long_int},
112 {CV_ARM64_X0 + 4, "x4", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X4), dbg_itype_unsigned_long_int},
113 {CV_ARM64_X0 + 5, "x5", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X5), dbg_itype_unsigned_long_int},
114 {CV_ARM64_X0 + 6, "x6", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X6), dbg_itype_unsigned_long_int},
115 {CV_ARM64_X0 + 7, "x7", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X7), dbg_itype_unsigned_long_int},
116 {CV_ARM64_X0 + 8, "x8", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X8), dbg_itype_unsigned_long_int},
117 {CV_ARM64_X0 + 9, "x9", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X9), dbg_itype_unsigned_long_int},
118 {CV_ARM64_X0 + 10, "x10", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X10), dbg_itype_unsigned_long_int},
119 {CV_ARM64_X0 + 11, "x11", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X11), dbg_itype_unsigned_long_int},
120 {CV_ARM64_X0 + 12, "x12", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X12), dbg_itype_unsigned_long_int},
121 {CV_ARM64_X0 + 13, "x13", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X13), dbg_itype_unsigned_long_int},
122 {CV_ARM64_X0 + 14, "x14", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X14), dbg_itype_unsigned_long_int},
123 {CV_ARM64_X0 + 15, "x15", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X15), dbg_itype_unsigned_long_int},
124 {CV_ARM64_X0 + 16, "x16", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X16), dbg_itype_unsigned_long_int},
125 {CV_ARM64_X0 + 17, "x17", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X17), dbg_itype_unsigned_long_int},
126 {CV_ARM64_X0 + 18, "x18", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X18), dbg_itype_unsigned_long_int},
127 {CV_ARM64_X0 + 19, "x19", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X19), dbg_itype_unsigned_long_int},
128 {CV_ARM64_X0 + 20, "x20", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X20), dbg_itype_unsigned_long_int},
129 {CV_ARM64_X0 + 21, "x21", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X21), dbg_itype_unsigned_long_int},
130 {CV_ARM64_X0 + 22, "x22", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X22), dbg_itype_unsigned_long_int},
131 {CV_ARM64_X0 + 23, "x23", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X23), dbg_itype_unsigned_long_int},
132 {CV_ARM64_X0 + 24, "x24", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X24), dbg_itype_unsigned_long_int},
133 {CV_ARM64_X0 + 25, "x25", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X25), dbg_itype_unsigned_long_int},
134 {CV_ARM64_X0 + 26, "x26", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X26), dbg_itype_unsigned_long_int},
135 {CV_ARM64_X0 + 27, "x27", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X27), dbg_itype_unsigned_long_int},
136 {CV_ARM64_X0 + 28, "x28", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X28), dbg_itype_unsigned_long_int},
137 {CV_ARM64_X0 + 29, "x29", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X29), dbg_itype_unsigned_long_int},
138 {CV_ARM64_X0 + 30, "x30", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X30), dbg_itype_unsigned_long_int},
139 {CV_ARM64_SP, "sp", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, Sp), dbg_itype_unsigned_long_int},
140 {CV_ARM64_PC, "pc", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, Pc), dbg_itype_unsigned_long_int},
141 {CV_ARM64_PSTATE, "pstate", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, PState), dbg_itype_unsigned_long_int},
142 {0, NULL, 0, dbg_itype_none}
143 };
144
145 static BOOL be_arm64_is_step_over_insn(const void* insn)
146 {
147 dbg_printf("be_arm64_is_step_over_insn: not done\n");
148 return FALSE;
149 }
150
151 static BOOL be_arm64_is_function_return(const void* insn)
152 {
153 dbg_printf("be_arm64_is_function_return: not done\n");
154 return FALSE;
155 }
156
157 static BOOL be_arm64_is_break_insn(const void* insn)
158 {
159 dbg_printf("be_arm64_is_break_insn: not done\n");
160 return FALSE;
161 }
162
163 static BOOL be_arm64_is_func_call(const void* insn, ADDRESS64* callee)
164 {
165 return FALSE;
166 }
167
168 static BOOL be_arm64_is_jump(const void* insn, ADDRESS64* jumpee)
169 {
170 return FALSE;
171 }
172
173 static BOOL be_arm64_insert_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
174 CONTEXT* ctx, enum be_xpoint_type type,
175 void* addr, unsigned long* val, unsigned size)
176 {
177 SIZE_T sz;
178
179 switch (type)
180 {
181 case be_xpoint_break:
182 if (!size) return FALSE;
183 if (!pio->read(hProcess, addr, val, 4, &sz) || sz != 4) return FALSE;
184 default:
185 dbg_printf("Unknown/unsupported bp type %c\n", type);
186 return FALSE;
187 }
188 return TRUE;
189 }
190
191 static BOOL be_arm64_remove_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
192 CONTEXT* ctx, enum be_xpoint_type type,
193 void* addr, unsigned long val, unsigned size)
194 {
195 SIZE_T sz;
196
197 switch (type)
198 {
199 case be_xpoint_break:
200 if (!size) return FALSE;
201 if (!pio->write(hProcess, addr, &val, 4, &sz) || sz == 4) return FALSE;
202 break;
203 default:
204 dbg_printf("Unknown/unsupported bp type %c\n", type);
205 return FALSE;
206 }
207 return TRUE;
208 }
209
210 static BOOL be_arm64_is_watchpoint_set(const CONTEXT* ctx, unsigned idx)
211 {
212 dbg_printf("be_arm64_is_watchpoint_set: not done\n");
213 return FALSE;
214 }
215
216 static void be_arm64_clear_watchpoint(CONTEXT* ctx, unsigned idx)
217 {
218 dbg_printf("be_arm64_clear_watchpoint: not done\n");
219 }
220
221 static int be_arm64_adjust_pc_for_break(CONTEXT* ctx, BOOL way)
222 {
223 if (way)
224 {
225 ctx->Pc -= 4;
226 return -4;
227 }
228 ctx->Pc += 4;
229 return 4;
230 }
231
232 static BOOL be_arm64_fetch_integer(const struct dbg_lvalue* lvalue, unsigned size,
233 BOOL is_signed, LONGLONG* ret)
234 {
235 if (size != 1 && size != 2 && size != 4 && size != 8) return FALSE;
236
237 memset(ret, 0, sizeof(*ret)); /* clear unread bytes */
238 /* FIXME: this assumes that debuggee and debugger use the same
239 * integral representation
240 */
241 if (!memory_read_value(lvalue, size, ret)) return FALSE;
242
243 /* propagate sign information */
244 if (is_signed && size < 8 && (*ret >> (size * 8 - 1)) != 0)
245 {
246 ULONGLONG neg = -1;
247 *ret |= neg << (size * 8);
248 }
249 return TRUE;
250 }
251
252 static BOOL be_arm64_fetch_float(const struct dbg_lvalue* lvalue, unsigned size,
253 long double* ret)
254 {
255 char tmp[sizeof(long double)];
256
257 /* FIXME: this assumes that debuggee and debugger use the same
258 * representation for reals
259 */
260 if (!memory_read_value(lvalue, size, tmp)) return FALSE;
261
262 if (size == sizeof(float)) *ret = *(float*)tmp;
263 else if (size == sizeof(double)) *ret = *(double*)tmp;
264 else if (size == sizeof(long double)) *ret = *(long double*)tmp;
265 else return FALSE;
266
267 return TRUE;
268 }
269
270 static BOOL be_arm64_store_integer(const struct dbg_lvalue* lvalue, unsigned size,
271 BOOL is_signed, LONGLONG val)
272 {
273 /* this is simple if we're on a little endian CPU */
274 return memory_write_value(lvalue, size, &val);
275 }
276
277 void be_arm64_disasm_one_insn(ADDRESS64 *addr, int display)
278 {
279 dbg_printf("be_arm64_disasm_one_insn: not done\n");
280 }
281
282 struct backend_cpu be_arm64 =
283 {
284 IMAGE_FILE_MACHINE_ARM64,
285 8,
286 be_cpu_linearize,
287 be_cpu_build_addr,
288 be_arm64_get_addr,
289 be_arm64_get_register_info,
290 be_arm64_single_step,
291 be_arm64_print_context,
292 be_arm64_print_segment_info,
293 be_arm64_ctx,
294 be_arm64_is_step_over_insn,
295 be_arm64_is_function_return,
296 be_arm64_is_break_insn,
297 be_arm64_is_func_call,
298 be_arm64_is_jump,
299 be_arm64_disasm_one_insn,
300 be_arm64_insert_Xpoint,
301 be_arm64_remove_Xpoint,
302 be_arm64_is_watchpoint_set,
303 be_arm64_clear_watchpoint,
304 be_arm64_adjust_pc_for_break,
305 be_arm64_fetch_integer,
306 be_arm64_fetch_float,
307 be_arm64_store_integer,
308 };
309 #endif
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