1 /**
2  * \file
3  * This header is only installed for use by the debugger:
4  * the structures and the API declared here are not supported.
5  */
6 
7 #ifndef __MONO_DEBUG_H__
8 #define __MONO_DEBUG_H__
9 
10 #include <mono/utils/mono-publib.h>
11 #include <mono/metadata/image.h>
12 #include <mono/metadata/appdomain.h>
13 
14 MONO_BEGIN_DECLS
15 
16 typedef struct _MonoSymbolTable			MonoSymbolTable;
17 typedef struct _MonoDebugDataTable		MonoDebugDataTable;
18 
19 typedef struct _MonoSymbolFile			MonoSymbolFile;
20 typedef struct _MonoPPDBFile			MonoPPDBFile;
21 
22 typedef struct _MonoDebugHandle			MonoDebugHandle;
23 
24 typedef struct _MonoDebugLineNumberEntry	MonoDebugLineNumberEntry;
25 
26 typedef struct _MonoDebugVarInfo		MonoDebugVarInfo;
27 typedef struct _MonoDebugMethodJitInfo		MonoDebugMethodJitInfo;
28 typedef struct _MonoDebugMethodAddress		MonoDebugMethodAddress;
29 typedef struct _MonoDebugMethodAddressList	MonoDebugMethodAddressList;
30 typedef struct _MonoDebugClassEntry		MonoDebugClassEntry;
31 
32 typedef struct _MonoDebugMethodInfo		MonoDebugMethodInfo;
33 typedef struct _MonoDebugLocalsInfo		MonoDebugLocalsInfo;
34 typedef struct _MonoDebugMethodAsyncInfo	MonoDebugMethodAsyncInfo;
35 typedef struct _MonoDebugSourceLocation		MonoDebugSourceLocation;
36 
37 typedef struct _MonoDebugList			MonoDebugList;
38 
39 typedef enum {
40 	MONO_DEBUG_FORMAT_NONE,
41 	MONO_DEBUG_FORMAT_MONO,
42 	/* Deprecated, the mdb debugger is not longer supported. */
43 	MONO_DEBUG_FORMAT_DEBUGGER
44 } MonoDebugFormat;
45 
46 /*
47  * NOTE:
48  * We intentionally do not use GList here since the debugger needs to know about
49  * the layout of the fields.
50 */
51 struct _MonoDebugList {
52 	MonoDebugList *next;
53 	const void* data;
54 };
55 
56 struct _MonoSymbolTable {
57 	uint64_t magic;
58 	uint32_t version;
59 	uint32_t total_size;
60 
61 	/*
62 	 * Corlib and metadata info.
63 	 */
64 	MonoDebugHandle *corlib;
65 	MonoDebugDataTable *global_data_table;
66 	MonoDebugList *data_tables;
67 
68 	/*
69 	 * The symbol files.
70 	 */
71 	MonoDebugList *symbol_files;
72 };
73 
74 struct _MonoDebugHandle {
75 	uint32_t index;
76 	char *image_file;
77 	MonoImage *image;
78 	MonoDebugDataTable *type_table;
79 	MonoSymbolFile *symfile;
80 	MonoPPDBFile *ppdb;
81 };
82 
83 struct _MonoDebugMethodJitInfo {
84 	const mono_byte *code_start;
85 	uint32_t code_size;
86 	uint32_t prologue_end;
87 	uint32_t epilogue_begin;
88 	const mono_byte *wrapper_addr;
89 	uint32_t num_line_numbers;
90 	MonoDebugLineNumberEntry *line_numbers;
91 	uint32_t has_var_info;
92 	uint32_t num_params;
93 	MonoDebugVarInfo *this_var;
94 	MonoDebugVarInfo *params;
95 	uint32_t num_locals;
96 	MonoDebugVarInfo *locals;
97 	MonoDebugVarInfo *gsharedvt_info_var;
98 	MonoDebugVarInfo *gsharedvt_locals_var;
99 };
100 
101 struct _MonoDebugMethodAddressList {
102 	uint32_t size;
103 	uint32_t count;
104 	mono_byte data [MONO_ZERO_LEN_ARRAY];
105 };
106 
107 struct _MonoDebugSourceLocation {
108 	char *source_file;
109 	uint32_t row, column;
110 	uint32_t il_offset;
111 };
112 
113 MONO_API mono_bool mono_debug_enabled (void);
114 
115 /*
116  * These bits of the MonoDebugLocalInfo's "index" field are flags specifying
117  * where the variable is actually stored.
118  *
119  * See relocate_variable() in debug-symfile.c for more info.
120  */
121 #define MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS		0xf0000000
122 
123 /* The variable is in register "index". */
124 #define MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER		0
125 
126 /* The variable is at offset "offset" from register "index". */
127 #define MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET		0x10000000
128 
129 /* The variable is in the two registers "offset" and "index". */
130 #define MONO_DEBUG_VAR_ADDRESS_MODE_TWO_REGISTERS	0x20000000
131 
132 /* The variable is dead. */
133 #define MONO_DEBUG_VAR_ADDRESS_MODE_DEAD		0x30000000
134 
135 /* Same as REGOFFSET, but do an indirection */
136 #define MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET_INDIR		0x40000000
137 
138 /* gsharedvt local */
139 #define MONO_DEBUG_VAR_ADDRESS_MODE_GSHAREDVT_LOCAL		0x50000000
140 
141 /* variable is a vt address */
142 #define MONO_DEBUG_VAR_ADDRESS_MODE_VTADDR		0x60000000
143 
144 struct _MonoDebugVarInfo {
145 	uint32_t index;
146 	uint32_t offset;
147 	uint32_t size;
148 	uint32_t begin_scope;
149 	uint32_t end_scope;
150 	MonoType *type;
151 };
152 
153 #define MONO_DEBUGGER_MAJOR_VERSION			81
154 #define MONO_DEBUGGER_MINOR_VERSION			6
155 #define MONO_DEBUGGER_MAGIC				0x7aff65af4253d427ULL
156 
157 MONO_API void mono_debug_init (MonoDebugFormat format);
158 MONO_API void mono_debug_open_image_from_memory (MonoImage *image, const mono_byte *raw_contents, int size);
159 MONO_API void mono_debug_cleanup (void);
160 
161 MONO_API void mono_debug_close_image (MonoImage *image);
162 
163 MONO_API void mono_debug_domain_unload (MonoDomain *domain);
164 MONO_API void mono_debug_domain_create (MonoDomain *domain);
165 
166 MONO_API MonoDebugMethodAddress *
167 mono_debug_add_method (MonoMethod *method, MonoDebugMethodJitInfo *jit, MonoDomain *domain);
168 
169 MONO_API void
170 mono_debug_remove_method (MonoMethod *method, MonoDomain *domain);
171 
172 MONO_API MonoDebugMethodInfo *
173 mono_debug_lookup_method (MonoMethod *method);
174 
175 MONO_API MonoDebugMethodAddressList *
176 mono_debug_lookup_method_addresses (MonoMethod *method);
177 
178 MONO_API MonoDebugMethodJitInfo*
179 mono_debug_find_method (MonoMethod *method, MonoDomain *domain);
180 
181 MONO_API void
182 mono_debug_free_method_jit_info (MonoDebugMethodJitInfo *jit);
183 
184 
185 MONO_API void
186 mono_debug_add_delegate_trampoline (void* code, int size);
187 
188 MONO_API MonoDebugLocalsInfo*
189 mono_debug_lookup_locals (MonoMethod *method);
190 
191 MonoDebugMethodAsyncInfo*
192 mono_debug_lookup_method_async_debug_info (MonoMethod *method);
193 
194 MonoDebugSourceLocation *
195 mono_debug_method_lookup_location (MonoDebugMethodInfo *minfo, int il_offset);
196 
197 /*
198  * Line number support.
199  */
200 
201 MONO_API MonoDebugSourceLocation *
202 mono_debug_lookup_source_location (MonoMethod *method, uint32_t address, MonoDomain *domain);
203 
204 MONO_API int32_t
205 mono_debug_il_offset_from_address (MonoMethod *method, MonoDomain *domain, uint32_t native_offset);
206 
207 MONO_API void
208 mono_debug_free_source_location (MonoDebugSourceLocation *location);
209 
210 MONO_API char *
211 mono_debug_print_stack_frame (MonoMethod *method, uint32_t native_offset, MonoDomain *domain);
212 
213 /*
214  * Mono Debugger support functions
215  *
216  * These methods are used by the JIT while running inside the Mono Debugger.
217  */
218 
219 MONO_API int             mono_debugger_method_has_breakpoint       (MonoMethod *method);
220 MONO_API int             mono_debugger_insert_breakpoint           (const char *method_name, mono_bool include_namespace);
221 
222 MONO_API void mono_set_is_debugger_attached (mono_bool attached);
223 MONO_API mono_bool mono_is_debugger_attached (void);
224 
225 MONO_END_DECLS
226 
227 #endif /* __MONO_DEBUG_H__ */
228