1 //===-- DNBDefs.h -----------------------------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 //  Created by Greg Clayton on 6/26/07.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef __DNBDefs_h__
15 #define __DNBDefs_h__
16 
17 #include <stdint.h>
18 #include <signal.h>
19 #include <stdio.h>
20 #include <sys/syslimits.h>
21 #include <unistd.h>
22 
23 //----------------------------------------------------------------------
24 // Define nub_addr_t and the invalid address value from the architecture
25 //----------------------------------------------------------------------
26 #if defined (__x86_64__) || defined (__ppc64__)
27 
28 //----------------------------------------------------------------------
29 // 64 bit address architectures
30 //----------------------------------------------------------------------
31 typedef uint64_t        nub_addr_t;
32 #define INVALID_NUB_ADDRESS     ((nub_addr_t)~0ull)
33 
34 #elif defined (__i386__) || defined (__powerpc__) || defined (__ppc__) || defined (__arm__)
35 
36 //----------------------------------------------------------------------
37 // 32 bit address architectures
38 //----------------------------------------------------------------------
39 
40 typedef uint32_t        nub_addr_t;
41 #define INVALID_NUB_ADDRESS     ((nub_addr_t)~0ul)
42 
43 #else
44 
45 //----------------------------------------------------------------------
46 // Default to 64 bit address for unrecognized architectures.
47 //----------------------------------------------------------------------
48 
49 #warning undefined architecture, defaulting to 8 byte addresses
50 typedef uint64_t        nub_addr_t;
51 #define INVALID_NUB_ADDRESS     ((nub_addr_t)~0ull)
52 
53 
54 #endif
55 
56 typedef size_t          nub_size_t;
57 typedef ssize_t         nub_ssize_t;
58 typedef uint32_t        nub_index_t;
59 typedef pid_t           nub_process_t;
60 typedef uint64_t        nub_thread_t;
61 typedef uint32_t        nub_event_t;
62 typedef uint32_t        nub_bool_t;
63 
64 #define INVALID_NUB_PROCESS     ((nub_process_t)0)
65 #define INVALID_NUB_THREAD      ((nub_thread_t)0)
66 #define INVALID_NUB_WATCH_ID    ((nub_watch_t)0)
67 #define INVALID_NUB_HW_INDEX    UINT32_MAX
68 #define INVALID_NUB_REGNUM      UINT32_MAX
69 #define NUB_GENERIC_ERROR       UINT32_MAX
70 
71 // Watchpoint types
72 #define WATCH_TYPE_READ     (1u << 0)
73 #define WATCH_TYPE_WRITE    (1u << 1)
74 
75 typedef enum
76 {
77     eStateInvalid = 0,
78     eStateUnloaded,
79     eStateAttaching,
80     eStateLaunching,
81     eStateStopped,
82     eStateRunning,
83     eStateStepping,
84     eStateCrashed,
85     eStateDetached,
86     eStateExited,
87     eStateSuspended
88 } nub_state_t;
89 
90 typedef enum
91 {
92     eLaunchFlavorDefault = 0,
93     eLaunchFlavorPosixSpawn,
94     eLaunchFlavorForkExec,
95 #ifdef WITH_SPRINGBOARD
96     eLaunchFlavorSpringBoard,
97 #endif
98 } nub_launch_flavor_t;
99 
100 #define NUB_STATE_IS_RUNNING(s) ((s) == eStateAttaching ||\
101                                  (s) == eStateLaunching ||\
102                                  (s) == eStateRunning ||\
103                                  (s) == eStateStepping ||\
104                                  (s) == eStateDetached)
105 
106 #define NUB_STATE_IS_STOPPED(s) ((s) == eStateUnloaded ||\
107                                  (s) == eStateStopped ||\
108                                  (s) == eStateCrashed ||\
109                                  (s) == eStateExited)
110 
111 enum
112 {
113     eEventProcessRunningStateChanged = 1 << 0,  // The process has changed state to running
114     eEventProcessStoppedStateChanged = 1 << 1,  // The process has changed state to stopped
115     eEventSharedLibsStateChange = 1 << 2,       // Shared libraries loaded/unloaded state has changed
116     eEventStdioAvailable = 1 << 3,              // Something is available on stdout/stderr
117     eEventProfileDataAvailable = 1 << 4,        // Profile data ready for retrieval
118     kAllEventsMask = eEventProcessRunningStateChanged |
119                      eEventProcessStoppedStateChanged |
120                      eEventSharedLibsStateChange |
121                      eEventStdioAvailable |
122                      eEventProfileDataAvailable
123 };
124 
125 #define LOG_VERBOSE             (1u << 0)
126 #define LOG_PROCESS             (1u << 1)
127 #define LOG_THREAD              (1u << 2)
128 #define LOG_EXCEPTIONS          (1u << 3)
129 #define LOG_SHLIB               (1u << 4)
130 #define LOG_MEMORY              (1u << 5)    // Log memory reads/writes calls
131 #define LOG_MEMORY_DATA_SHORT   (1u << 6)    // Log short memory reads/writes bytes
132 #define LOG_MEMORY_DATA_LONG    (1u << 7)    // Log all memory reads/writes bytes
133 #define LOG_MEMORY_PROTECTIONS  (1u << 8)    // Log memory protection changes
134 #define LOG_BREAKPOINTS         (1u << 9)
135 #define LOG_EVENTS              (1u << 10)
136 #define LOG_WATCHPOINTS         (1u << 11)
137 #define LOG_STEP                (1u << 12)
138 #define LOG_TASK                (1u << 13)
139 #define LOG_LO_USER             (1u << 16)
140 #define LOG_HI_USER             (1u << 31)
141 #define LOG_ALL                 0xFFFFFFFFu
142 #define LOG_DEFAULT             ((LOG_PROCESS) |\
143                                  (LOG_TASK) |\
144                                  (LOG_THREAD) |\
145                                  (LOG_EXCEPTIONS) |\
146                                  (LOG_SHLIB) |\
147                                  (LOG_MEMORY) |\
148                                  (LOG_BREAKPOINTS) |\
149                                  (LOG_WATCHPOINTS) |\
150                                  (LOG_STEP))
151 
152 
153 #define REGISTER_SET_ALL        0
154 // Generic Register set to be defined by each architecture for access to common
155 // register values.
156 #define REGISTER_SET_GENERIC    ((uint32_t)0xFFFFFFFFu)
157 #define GENERIC_REGNUM_PC       0   // Program Counter
158 #define GENERIC_REGNUM_SP       1   // Stack Pointer
159 #define GENERIC_REGNUM_FP       2   // Frame Pointer
160 #define GENERIC_REGNUM_RA       3   // Return Address
161 #define GENERIC_REGNUM_FLAGS    4   // Processor flags register
162 #define GENERIC_REGNUM_ARG1     5   // The register that would contain pointer size or less argument 1 (if any)
163 #define GENERIC_REGNUM_ARG2     6   // The register that would contain pointer size or less argument 2 (if any)
164 #define GENERIC_REGNUM_ARG3     7   // The register that would contain pointer size or less argument 3 (if any)
165 #define GENERIC_REGNUM_ARG4     8   // The register that would contain pointer size or less argument 4 (if any)
166 #define GENERIC_REGNUM_ARG5     9   // The register that would contain pointer size or less argument 5 (if any)
167 #define GENERIC_REGNUM_ARG6     10  // The register that would contain pointer size or less argument 6 (if any)
168 #define GENERIC_REGNUM_ARG7     11  // The register that would contain pointer size or less argument 7 (if any)
169 #define GENERIC_REGNUM_ARG8     12  // The register that would contain pointer size or less argument 8 (if any)
170 
171 enum DNBRegisterType
172 {
173     InvalidRegType = 0,
174     Uint,               // unsigned integer
175     Sint,               // signed integer
176     IEEE754,            // float
177     Vector              // vector registers
178 };
179 
180 enum DNBRegisterFormat
181 {
182     InvalidRegFormat = 0,
183     Binary,
184     Decimal,
185     Hex,
186     Float,
187     VectorOfSInt8,
188     VectorOfUInt8,
189     VectorOfSInt16,
190     VectorOfUInt16,
191     VectorOfSInt32,
192     VectorOfUInt32,
193     VectorOfFloat32,
194     VectorOfUInt128
195 };
196 
197 struct DNBRegisterInfo
198 {
199     uint32_t    set;            // Register set
200     uint32_t    reg;            // Register number
201     const char *name;           // Name of this register
202     const char *alt;            // Alternate name
203     uint16_t    type;           // Type of the register bits (DNBRegisterType)
204     uint16_t    format;         // Default format for display (DNBRegisterFormat),
205     uint32_t    size;           // Size in bytes of the register
206     uint32_t    offset;         // Offset from the beginning of the register context
207     uint32_t    reg_gcc;        // GCC register number (INVALID_NUB_REGNUM when none)
208     uint32_t    reg_dwarf;      // DWARF register number (INVALID_NUB_REGNUM when none)
209     uint32_t    reg_generic;    // Generic register number (INVALID_NUB_REGNUM when none)
210     uint32_t    reg_gdb;        // The GDB register number (INVALID_NUB_REGNUM when none)
211     uint32_t    *pseudo_regs;   // If this register is a part of another register, list the one or more registers
212     uint32_t    *update_regs;   // If modifying this register will invalidate other registers, list them here
213 };
214 
215 struct DNBRegisterSetInfo
216 {
217     const char *name;                           // Name of this register set
218     const struct DNBRegisterInfo *registers;    // An array of register descriptions
219     nub_size_t num_registers;                   // The number of registers in REGISTERS array above
220 };
221 
222 struct DNBThreadResumeAction
223 {
224     nub_thread_t tid;   // The thread ID that this action applies to, INVALID_NUB_THREAD for the default thread action
225     nub_state_t state;  // Valid values are eStateStopped/eStateSuspended, eStateRunning, and eStateStepping.
226     int signal;         // When resuming this thread, resume it with this signal
227     nub_addr_t addr;    // If not INVALID_NUB_ADDRESS, then set the PC for the thread to ADDR before resuming/stepping
228 };
229 
230 enum DNBThreadStopType
231 {
232     eStopTypeInvalid = 0,
233     eStopTypeSignal,
234     eStopTypeException,
235     eStopTypeExec
236 };
237 
238 enum DNBMemoryPermissions
239 {
240     eMemoryPermissionsWritable    = (1 << 0),
241     eMemoryPermissionsReadable    = (1 << 1),
242     eMemoryPermissionsExecutable  = (1 << 2)
243 };
244 
245 #define DNB_THREAD_STOP_INFO_MAX_DESC_LENGTH    256
246 #define DNB_THREAD_STOP_INFO_MAX_EXC_DATA       8
247 
248 //----------------------------------------------------------------------
249 // DNBThreadStopInfo
250 //
251 // Describes the reason a thread stopped.
252 //----------------------------------------------------------------------
253 struct DNBThreadStopInfo
254 {
255     DNBThreadStopType reason;
256     char description[DNB_THREAD_STOP_INFO_MAX_DESC_LENGTH];
257     union
258     {
259         // eStopTypeSignal
260         struct
261         {
262             uint32_t signo;
263         } signal;
264 
265         // eStopTypeException
266         struct
267         {
268             uint32_t type;
269             nub_size_t data_count;
270             nub_addr_t data[DNB_THREAD_STOP_INFO_MAX_EXC_DATA];
271         } exception;
272     } details;
273 };
274 
275 
276 struct DNBRegisterValue
277 {
278     struct DNBRegisterInfo info;    // Register information for this register
279     union
280     {
281         int8_t      sint8;
282         int16_t     sint16;
283         int32_t     sint32;
284         int64_t     sint64;
285         uint8_t     uint8;
286         uint16_t    uint16;
287         uint32_t    uint32;
288         uint64_t    uint64;
289         float       float32;
290         double      float64;
291         int8_t      v_sint8[32];
292         int16_t     v_sint16[16];
293         int32_t     v_sint32[8];
294         int64_t     v_sint64[4];
295         uint8_t     v_uint8[32];
296         uint16_t    v_uint16[16];
297         uint32_t    v_uint32[8];
298         uint64_t    v_uint64[4];
299         float       v_float32[8];
300         double      v_float64[4];
301         void        *pointer;
302         char        *c_str;
303     } value;
304 };
305 
306 enum DNBSharedLibraryState
307 {
308     eShlibStateUnloaded    = 0,
309     eShlibStateLoaded    = 1
310 };
311 
312 #ifndef DNB_MAX_SEGMENT_NAME_LENGTH
313 #define DNB_MAX_SEGMENT_NAME_LENGTH    32
314 #endif
315 
316 struct DNBSegment
317 {
318     char        name[DNB_MAX_SEGMENT_NAME_LENGTH];
319     nub_addr_t  addr;
320     nub_addr_t  size;
321 };
322 
323 struct DNBExecutableImageInfo
324 {
325     char        name[PATH_MAX]; // Name of the executable image (usually a full path)
326     uint32_t    state;          // State of the executable image (see enum DNBSharedLibraryState)
327     nub_addr_t  header_addr;    // Executable header address
328     uuid_t      uuid;           // Unique indentifier for matching with symbols
329     uint32_t    num_segments;   // Number of contiguous memory segments to in SEGMENTS array
330     DNBSegment  *segments;      // Array of contiguous memory segments in executable
331 };
332 
333 struct DNBRegionInfo
334 {
335     nub_addr_t addr;
336     nub_addr_t size;
337     uint32_t permissions;
338 };
339 
340 enum DNBProfileDataScanType
341 {
342     eProfileHostCPU             = (1 << 0),
343     eProfileCPU                 = (1 << 1),
344 
345     eProfileThreadsCPU          = (1 << 2), // By default excludes eProfileThreadName and eProfileQueueName.
346     eProfileThreadName          = (1 << 3), // Assume eProfileThreadsCPU, get thread name as well.
347     eProfileQueueName           = (1 << 4), // Assume eProfileThreadsCPU, get queue name as well.
348 
349     eProfileHostMemory          = (1 << 5),
350 
351     eProfileMemory              = (1 << 6), // By default, excludes eProfileMemoryDirtyPage.
352     eProfileMemoryDirtyPage     = (1 << 7), // Assume eProfileMemory, get Dirty Page size as well.
353     eProfileMemoryAnonymous     = (1 << 8), // Assume eProfileMemory, get Anonymous memory as well.
354 
355     eProfileAll                 = 0xffffffff
356 };
357 
358 typedef nub_addr_t (*DNBCallbackNameToAddress)(nub_process_t pid, const char *name, const char *shlib_regex, void *baton);
359 typedef nub_size_t (*DNBCallbackCopyExecutableImageInfos)(nub_process_t pid, struct DNBExecutableImageInfo **image_infos, nub_bool_t only_changed, void *baton);
360 typedef void (*DNBCallbackLog)(void *baton, uint32_t flags, const char *format, va_list args);
361 
362 #endif    // #ifndef __DNBDefs_h__
363