src/llvm/lib/ExecutionEngine/IntelJITEvents/jitprofiling.h

   1 /*===-- jitprofiling.h - JIT Profiling API-------------------------*- 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  * This file provides Intel(R) Performance Analyzer JIT (Just-In-Time)
  11  * Profiling API declaration.
  12  *
  13  *===----------------------------------------------------------------------===*/
  14 #ifndef __JITPROFILING_H__
  15 #define __JITPROFILING_H__
  16
  17 /*
  18  * Various constants used by functions
  19  */
  20
  21 /* event notification */
  22 typedef enum iJIT_jvm_event
  23 {
  24
  25     /* shutdown  */
  26
  27     /*
  28      * Program exiting EventSpecificData NA
  29      */
  30     iJVM_EVENT_TYPE_SHUTDOWN = 2,
  31
  32     /* JIT profiling  */
  33
  34     /*
  35      * issued after method code jitted into memory but before code is executed
  36      * EventSpecificData is an iJIT_Method_Load
  37      */
  38     iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED=13,
  39
  40     /* issued before unload. Method code will no longer be executed, but code
  41      * and info are still in memory. The VTune profiler may capture method
  42      * code only at this point EventSpecificData is iJIT_Method_Id
  43      */
  44     iJVM_EVENT_TYPE_METHOD_UNLOAD_START,
  45
  46     /* Method Profiling */
  47
  48     /* method name, Id and stack is supplied
  49      * issued when a method is about to be entered EventSpecificData is
  50      * iJIT_Method_NIDS
  51      */
  52     iJVM_EVENT_TYPE_ENTER_NIDS = 19,
  53
  54     /* method name, Id and stack is supplied
  55      * issued when a method is about to be left EventSpecificData is
  56      * iJIT_Method_NIDS
  57      */
  58     iJVM_EVENT_TYPE_LEAVE_NIDS
  59 } iJIT_JVM_EVENT;
  60
  61 typedef enum _iJIT_ModeFlags
  62 {
  63     /* No need to Notify VTune, since VTune is not running */
  64     iJIT_NO_NOTIFICATIONS          = 0x0000,
  65
  66     /* when turned on the jit must call
  67      * iJIT_NotifyEvent
  68      * (
  69      *     iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED,
  70      * )
  71      * for all the method already jitted
  72      */
  73     iJIT_BE_NOTIFY_ON_LOAD         = 0x0001,
  74
  75     /* when turned on the jit must call
  76      * iJIT_NotifyEvent
  77      * (
  78      *     iJVM_EVENT_TYPE_METHOD_UNLOAD_FINISHED,
  79      *  ) for all the method that are unloaded
  80      */
  81     iJIT_BE_NOTIFY_ON_UNLOAD       = 0x0002,
  82
  83     /* when turned on the jit must instrument all
  84      * the currently jited code with calls on
  85      * method entries
  86      */
  87     iJIT_BE_NOTIFY_ON_METHOD_ENTRY = 0x0004,
  88
  89     /* when turned on the jit must instrument all
  90      * the currently jited code with calls
  91      * on method exit
  92      */
  93     iJIT_BE_NOTIFY_ON_METHOD_EXIT  = 0x0008
  94
  95 } iJIT_ModeFlags;
  96
  97
  98  /* Flags used by iJIT_IsProfilingActive() */
  99 typedef enum _iJIT_IsProfilingActiveFlags
 100 {
 101     /* No profiler is running. Currently not used */
 102     iJIT_NOTHING_RUNNING           = 0x0000,
 103
 104     /* Sampling is running. This is the default value
 105      * returned by iJIT_IsProfilingActive()
 106      */
 107     iJIT_SAMPLING_ON               = 0x0001,
 108
 109       /* Call Graph is running */
 110     iJIT_CALLGRAPH_ON              = 0x0002
 111
 112 } iJIT_IsProfilingActiveFlags;
 113
 114 /* Enumerator for the environment of methods*/
 115 typedef enum _iJDEnvironmentType
 116 {
 117     iJDE_JittingAPI = 2
 118 } iJDEnvironmentType;
 119
 120 /**********************************
 121  * Data structures for the events *
 122  **********************************/
 123
 124 /* structure for the events:
 125  * iJVM_EVENT_TYPE_METHOD_UNLOAD_START
 126  */
 127
 128 typedef struct _iJIT_Method_Id
 129 {
 130    /* Id of the method (same as the one passed in
 131    * the iJIT_Method_Load struct
 132    */
 133     unsigned int       method_id;
 134
 135 } *piJIT_Method_Id, iJIT_Method_Id;
 136
 137
 138 /* structure for the events:
 139  * iJVM_EVENT_TYPE_ENTER_NIDS,
 140  * iJVM_EVENT_TYPE_LEAVE_NIDS,
 141  * iJVM_EVENT_TYPE_EXCEPTION_OCCURRED_NIDS
 142  */
 143
 144 typedef struct _iJIT_Method_NIDS
 145 {
 146     /* unique method ID */
 147     unsigned int       method_id;
 148
 149     /* NOTE: no need to fill this field, it's filled by VTune */
 150     unsigned int       stack_id;
 151
 152     /* method name (just the method, without the class) */
 153     char*              method_name;
 154 } *piJIT_Method_NIDS, iJIT_Method_NIDS;
 155
 156 /* structures for the events:
 157  * iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED
 158  */
 159
 160 typedef struct _LineNumberInfo
 161 {
 162     /* x86 Offset from the begining of the method*/
 163     unsigned int        Offset;
 164
 165     /* source line number from the begining of the source file */
 166     unsigned int        LineNumber;
 167
 168 } *pLineNumberInfo, LineNumberInfo;
 169
 170 typedef struct _iJIT_Method_Load
 171 {
 172     /* unique method ID - can be any unique value, (except 0 - 999) */
 173     unsigned int        method_id;
 174
 175     /* method name (can be with or without the class and signature, in any case
 176      * the class name will be added to it)
 177      */
 178     char*               method_name;
 179
 180     /* virtual address of that method - This determines the method range for the
 181      * iJVM_EVENT_TYPE_ENTER/LEAVE_METHOD_ADDR events
 182      */
 183     void*               method_load_address;
 184
 185     /* Size in memory - Must be exact */
 186     unsigned int        method_size;
 187
 188     /* Line Table size in number of entries - Zero if none */
 189     unsigned int        line_number_size;
 190
 191     /* Pointer to the begining of the line numbers info array */
 192     pLineNumberInfo     line_number_table;
 193
 194     /* unique class ID */
 195     unsigned int        class_id;
 196
 197     /* class file name */
 198     char*               class_file_name;
 199
 200     /* source file name */
 201     char*               source_file_name;
 202
 203     /* bits supplied by the user for saving in the JIT file */
 204     void*               user_data;
 205
 206     /* the size of the user data buffer */
 207     unsigned int        user_data_size;
 208
 209     /* NOTE: no need to fill this field, it's filled by VTune */
 210     iJDEnvironmentType  env;
 211
 212 } *piJIT_Method_Load, iJIT_Method_Load;
 213
 214 /* API Functions */
 215 #ifdef __cplusplus
 216 extern "C" {
 217 #endif
 218
 219 #ifndef CDECL
 220 #  if defined WIN32 || defined _WIN32
 221 #    define CDECL __cdecl
 222 #  else /* defined WIN32 || defined _WIN32 */
 223 #    if defined _M_X64 || defined _M_AMD64 || defined __x86_64__
 224 #      define CDECL /* not actual on x86_64 platform */
 225 #    else  /* _M_X64 || _M_AMD64 || __x86_64__ */
 226 #      define CDECL __attribute__ ((cdecl))
 227 #    endif /* _M_X64 || _M_AMD64 || __x86_64__ */
 228 #  endif /* defined WIN32 || defined _WIN32 */
 229 #endif /* CDECL */
 230
 231 #define JITAPI CDECL
 232
 233 /* called when the settings are changed with new settings */
 234 typedef void (*iJIT_ModeChangedEx)(void *UserData, iJIT_ModeFlags Flags);
 235
 236 int JITAPI iJIT_NotifyEvent(iJIT_JVM_EVENT event_type, void *EventSpecificData);
 237
 238 /* The new mode call back routine */
 239 void JITAPI iJIT_RegisterCallbackEx(void *userdata,
 240                                     iJIT_ModeChangedEx NewModeCallBackFuncEx);
 241
 242 iJIT_IsProfilingActiveFlags JITAPI iJIT_IsProfilingActive(void);
 243
 244 void JITAPI FinalizeThread(void);
 245
 246 void JITAPI FinalizeProcess(void);
 247
 248 unsigned int JITAPI iJIT_GetNewMethodID(void);
 249
 250 #ifdef __cplusplus
 251 }
 252 #endif
 253
 254 #endif /* __JITPROFILING_H__ */