diff options
Diffstat (limited to 'gnu/llvm/lib/ExecutionEngine/IntelJITEvents/jitprofiling.c')
| -rw-r--r-- | gnu/llvm/lib/ExecutionEngine/IntelJITEvents/jitprofiling.c | 481 |
1 files changed, 0 insertions, 481 deletions
diff --git a/gnu/llvm/lib/ExecutionEngine/IntelJITEvents/jitprofiling.c b/gnu/llvm/lib/ExecutionEngine/IntelJITEvents/jitprofiling.c deleted file mode 100644 index d2e0f037f36..00000000000 --- a/gnu/llvm/lib/ExecutionEngine/IntelJITEvents/jitprofiling.c +++ /dev/null @@ -1,481 +0,0 @@ -/*===-- jitprofiling.c - JIT (Just-In-Time) Profiling API----------*- C -*-===* - * - * The LLVM Compiler Infrastructure - * - * This file is distributed under the University of Illinois Open Source - * License. See LICENSE.TXT for details. - * - *===----------------------------------------------------------------------===* - * - * This file provides Intel(R) Performance Analyzer JIT (Just-In-Time) - * Profiling API implementation. - * - * NOTE: This file comes in a style different from the rest of LLVM - * source base since this is a piece of code shared from Intel(R) - * products. Please do not reformat / re-style this code to make - * subsequent merges and contributions from the original source base eaiser. - * - *===----------------------------------------------------------------------===*/ -#include "ittnotify_config.h" - -#if ITT_PLATFORM==ITT_PLATFORM_WIN -#include <windows.h> -#pragma optimize("", off) -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ -#include <dlfcn.h> -#include <pthread.h> -#include <stdint.h> -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ -#include <stdlib.h> - -#include "jitprofiling.h" - -static const char rcsid[] = "\n@(#) $Revision: 1.1.1.3 $\n"; - -#define DLL_ENVIRONMENT_VAR "VS_PROFILER" - -#ifndef NEW_DLL_ENVIRONMENT_VAR -#if ITT_ARCH==ITT_ARCH_IA32 -#define NEW_DLL_ENVIRONMENT_VAR "INTEL_JIT_PROFILER32" -#else -#define NEW_DLL_ENVIRONMENT_VAR "INTEL_JIT_PROFILER64" -#endif -#endif /* NEW_DLL_ENVIRONMENT_VAR */ - -#if ITT_PLATFORM==ITT_PLATFORM_WIN -#define DEFAULT_DLLNAME "JitPI.dll" -HINSTANCE m_libHandle = NULL; -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ -#define DEFAULT_DLLNAME "libJitPI.so" -void* m_libHandle = NULL; -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - -/* default location of JIT profiling agent on Android */ -#define ANDROID_JIT_AGENT_PATH "/data/intel/libittnotify.so" - -/* the function pointers */ -typedef unsigned int(*TPInitialize)(void); -static TPInitialize FUNC_Initialize=NULL; - -typedef unsigned int(*TPNotify)(unsigned int, void*); -static TPNotify FUNC_NotifyEvent=NULL; - -static iJIT_IsProfilingActiveFlags executionMode = iJIT_NOTHING_RUNNING; - -/* end collector dll part. */ - -/* loadiJIT_Funcs() : this function is called just in the beginning - * and is responsible to load the functions from BistroJavaCollector.dll - * result: - * on success: the functions loads, iJIT_DLL_is_missing=0, return value = 1 - * on failure: the functions are NULL, iJIT_DLL_is_missing=1, return value = 0 - */ -static int loadiJIT_Funcs(void); - -/* global representing whether the BistroJavaCollector can't be loaded */ -static int iJIT_DLL_is_missing = 0; - -/* Virtual stack - the struct is used as a virtual stack for each thread. - * Every thread initializes with a stack of size INIT_TOP_STACK. - * Every method entry decreases from the current stack point, - * and when a thread stack reaches its top of stack (return from the global - * function), the top of stack and the current stack increase. Notice that - * when returning from a function the stack pointer is the address of - * the function return. -*/ -#if ITT_PLATFORM==ITT_PLATFORM_WIN -static DWORD threadLocalStorageHandle = 0; -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ -static pthread_key_t threadLocalStorageHandle = (pthread_key_t)0; -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - -#define INIT_TOP_Stack 10000 - -typedef struct -{ - unsigned int TopStack; - unsigned int CurrentStack; -} ThreadStack, *pThreadStack; - -/* end of virtual stack. */ - -/* - * The function for reporting virtual-machine related events to VTune. - * Note: when reporting iJVM_EVENT_TYPE_ENTER_NIDS, there is no need to fill - * in the stack_id field in the iJIT_Method_NIDS structure, as VTune fills it. - * The return value in iJVM_EVENT_TYPE_ENTER_NIDS && - * iJVM_EVENT_TYPE_LEAVE_NIDS events will be 0 in case of failure. - * in iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED event - * it will be -1 if EventSpecificData == 0 otherwise it will be 0. -*/ - -ITT_EXTERN_C int JITAPI -iJIT_NotifyEvent(iJIT_JVM_EVENT event_type, void *EventSpecificData) -{ - int ReturnValue; - - /* - * This section is for debugging outside of VTune. - * It creates the environment variables that indicates call graph mode. - * If running outside of VTune remove the remark. - * - * - * static int firstTime = 1; - * char DoCallGraph[12] = "DoCallGraph"; - * if (firstTime) - * { - * firstTime = 0; - * SetEnvironmentVariable( "BISTRO_COLLECTORS_DO_CALLGRAPH", DoCallGraph); - * } - * - * end of section. - */ - - /* initialization part - the functions have not been loaded yet. This part - * will load the functions, and check if we are in Call Graph mode. - * (for special treatment). - */ - if (!FUNC_NotifyEvent) - { - if (iJIT_DLL_is_missing) - return 0; - - /* load the Function from the DLL */ - if (!loadiJIT_Funcs()) - return 0; - - /* Call Graph initialization. */ - } - - /* If the event is method entry/exit, check that in the current mode - * VTune is allowed to receive it - */ - if ((event_type == iJVM_EVENT_TYPE_ENTER_NIDS || - event_type == iJVM_EVENT_TYPE_LEAVE_NIDS) && - (executionMode != iJIT_CALLGRAPH_ON)) - { - return 0; - } - /* This section is performed when method enter event occurs. - * It updates the virtual stack, or creates it if this is the first - * method entry in the thread. The stack pointer is decreased. - */ - if (event_type == iJVM_EVENT_TYPE_ENTER_NIDS) - { -#if ITT_PLATFORM==ITT_PLATFORM_WIN - pThreadStack threadStack = - (pThreadStack)TlsGetValue (threadLocalStorageHandle); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - pThreadStack threadStack = - (pThreadStack)pthread_getspecific(threadLocalStorageHandle); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - - /* check for use of reserved method IDs */ - if ( ((piJIT_Method_NIDS) EventSpecificData)->method_id <= 999 ) - return 0; - - if (!threadStack) - { - /* initialize the stack. */ - threadStack = (pThreadStack) calloc (sizeof(ThreadStack), 1); - threadStack->TopStack = INIT_TOP_Stack; - threadStack->CurrentStack = INIT_TOP_Stack; -#if ITT_PLATFORM==ITT_PLATFORM_WIN - TlsSetValue(threadLocalStorageHandle,(void*)threadStack); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - pthread_setspecific(threadLocalStorageHandle,(void*)threadStack); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - } - - /* decrease the stack. */ - ((piJIT_Method_NIDS) EventSpecificData)->stack_id = - (threadStack->CurrentStack)--; - } - - /* This section is performed when method leave event occurs - * It updates the virtual stack. - * Increases the stack pointer. - * If the stack pointer reached the top (left the global function) - * increase the pointer and the top pointer. - */ - if (event_type == iJVM_EVENT_TYPE_LEAVE_NIDS) - { -#if ITT_PLATFORM==ITT_PLATFORM_WIN - pThreadStack threadStack = - (pThreadStack)TlsGetValue (threadLocalStorageHandle); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - pThreadStack threadStack = - (pThreadStack)pthread_getspecific(threadLocalStorageHandle); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - - /* check for use of reserved method IDs */ - if ( ((piJIT_Method_NIDS) EventSpecificData)->method_id <= 999 ) - return 0; - - if (!threadStack) - { - /* Error: first report in this thread is method exit */ - exit (1); - } - - ((piJIT_Method_NIDS) EventSpecificData)->stack_id = - ++(threadStack->CurrentStack) + 1; - - if (((piJIT_Method_NIDS) EventSpecificData)->stack_id - > threadStack->TopStack) - ((piJIT_Method_NIDS) EventSpecificData)->stack_id = - (unsigned int)-1; - } - - if (event_type == iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED) - { - /* check for use of reserved method IDs */ - if ( ((piJIT_Method_Load) EventSpecificData)->method_id <= 999 ) - return 0; - } - - ReturnValue = (int)FUNC_NotifyEvent(event_type, EventSpecificData); - - return ReturnValue; -} - -/* The new mode call back routine */ -ITT_EXTERN_C void JITAPI -iJIT_RegisterCallbackEx(void *userdata, iJIT_ModeChangedEx - NewModeCallBackFuncEx) -{ - /* is it already missing... or the load of functions from the DLL failed */ - if (iJIT_DLL_is_missing || !loadiJIT_Funcs()) - { - /* then do not bother with notifications */ - NewModeCallBackFuncEx(userdata, iJIT_NO_NOTIFICATIONS); - /* Error: could not load JIT functions. */ - return; - } - /* nothing to do with the callback */ -} - -/* - * This function allows the user to query in which mode, if at all, - *VTune is running - */ -ITT_EXTERN_C iJIT_IsProfilingActiveFlags JITAPI iJIT_IsProfilingActive() -{ - if (!iJIT_DLL_is_missing) - { - loadiJIT_Funcs(); - } - - return executionMode; -} - -/* this function loads the collector dll (BistroJavaCollector) - * and the relevant functions. - * on success: all functions load, iJIT_DLL_is_missing = 0, return value = 1 - * on failure: all functions are NULL, iJIT_DLL_is_missing = 1, return value = 0 - */ -static int loadiJIT_Funcs() -{ - static int bDllWasLoaded = 0; - char *dllName = (char*)rcsid; /* !! Just to avoid unused code elimination */ -#if ITT_PLATFORM==ITT_PLATFORM_WIN - DWORD dNameLength = 0; -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - - if(bDllWasLoaded) - { - /* dll was already loaded, no need to do it for the second time */ - return 1; - } - - /* Assumes that the DLL will not be found */ - iJIT_DLL_is_missing = 1; - FUNC_NotifyEvent = NULL; - - if (m_libHandle) - { -#if ITT_PLATFORM==ITT_PLATFORM_WIN - FreeLibrary(m_libHandle); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - dlclose(m_libHandle); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - m_libHandle = NULL; - } - - /* Try to get the dll name from the environment */ -#if ITT_PLATFORM==ITT_PLATFORM_WIN - dNameLength = GetEnvironmentVariableA(NEW_DLL_ENVIRONMENT_VAR, NULL, 0); - if (dNameLength) - { - DWORD envret = 0; - dllName = (char*)malloc(sizeof(char) * (dNameLength + 1)); - envret = GetEnvironmentVariableA(NEW_DLL_ENVIRONMENT_VAR, - dllName, dNameLength); - if (envret) - { - /* Try to load the dll from the PATH... */ - m_libHandle = LoadLibraryExA(dllName, - NULL, LOAD_WITH_ALTERED_SEARCH_PATH); - } - free(dllName); - } else { - /* Try to use old VS_PROFILER variable */ - dNameLength = GetEnvironmentVariableA(DLL_ENVIRONMENT_VAR, NULL, 0); - if (dNameLength) - { - DWORD envret = 0; - dllName = (char*)malloc(sizeof(char) * (dNameLength + 1)); - envret = GetEnvironmentVariableA(DLL_ENVIRONMENT_VAR, - dllName, dNameLength); - if (envret) - { - /* Try to load the dll from the PATH... */ - m_libHandle = LoadLibraryA(dllName); - } - free(dllName); - } - } -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - dllName = getenv(NEW_DLL_ENVIRONMENT_VAR); - if (!dllName) - dllName = getenv(DLL_ENVIRONMENT_VAR); -#ifdef ANDROID - if (!dllName) - dllName = ANDROID_JIT_AGENT_PATH; -#endif - if (dllName) - { - /* Try to load the dll from the PATH... */ - m_libHandle = dlopen(dllName, RTLD_LAZY); - } -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - - if (!m_libHandle) - { -#if ITT_PLATFORM==ITT_PLATFORM_WIN - m_libHandle = LoadLibraryA(DEFAULT_DLLNAME); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - m_libHandle = dlopen(DEFAULT_DLLNAME, RTLD_LAZY); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - } - - /* if the dll wasn't loaded - exit. */ - if (!m_libHandle) - { - iJIT_DLL_is_missing = 1; /* don't try to initialize - * JIT agent the second time - */ - return 0; - } - -#if ITT_PLATFORM==ITT_PLATFORM_WIN - FUNC_NotifyEvent = (TPNotify)GetProcAddress(m_libHandle, "NotifyEvent"); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - FUNC_NotifyEvent = (TPNotify)(intptr_t)dlsym(m_libHandle, "NotifyEvent"); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - if (!FUNC_NotifyEvent) - { - FUNC_Initialize = NULL; - return 0; - } - -#if ITT_PLATFORM==ITT_PLATFORM_WIN - FUNC_Initialize = (TPInitialize)GetProcAddress(m_libHandle, "Initialize"); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - FUNC_Initialize = (TPInitialize)(intptr_t)dlsym(m_libHandle, "Initialize"); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - if (!FUNC_Initialize) - { - FUNC_NotifyEvent = NULL; - return 0; - } - - executionMode = (iJIT_IsProfilingActiveFlags)FUNC_Initialize(); - - bDllWasLoaded = 1; - iJIT_DLL_is_missing = 0; /* DLL is ok. */ - - /* - * Call Graph mode: init the thread local storage - * (need to store the virtual stack there). - */ - if ( executionMode == iJIT_CALLGRAPH_ON ) - { - /* Allocate a thread local storage slot for the thread "stack" */ - if (!threadLocalStorageHandle) -#if ITT_PLATFORM==ITT_PLATFORM_WIN - threadLocalStorageHandle = TlsAlloc(); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - pthread_key_create(&threadLocalStorageHandle, NULL); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - } - - return 1; -} - -/* - * This function should be called by the user whenever a thread ends, - * to free the thread "virtual stack" storage - */ -ITT_EXTERN_C void JITAPI FinalizeThread() -{ - if (threadLocalStorageHandle) - { -#if ITT_PLATFORM==ITT_PLATFORM_WIN - pThreadStack threadStack = - (pThreadStack)TlsGetValue (threadLocalStorageHandle); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - pThreadStack threadStack = - (pThreadStack)pthread_getspecific(threadLocalStorageHandle); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - if (threadStack) - { - free (threadStack); - threadStack = NULL; -#if ITT_PLATFORM==ITT_PLATFORM_WIN - TlsSetValue (threadLocalStorageHandle, threadStack); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - pthread_setspecific(threadLocalStorageHandle, threadStack); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - } - } -} - -/* - * This function should be called by the user when the process ends, - * to free the local storage index -*/ -ITT_EXTERN_C void JITAPI FinalizeProcess() -{ - if (m_libHandle) - { -#if ITT_PLATFORM==ITT_PLATFORM_WIN - FreeLibrary(m_libHandle); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - dlclose(m_libHandle); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - m_libHandle = NULL; - } - - if (threadLocalStorageHandle) -#if ITT_PLATFORM==ITT_PLATFORM_WIN - TlsFree (threadLocalStorageHandle); -#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */ - pthread_key_delete(threadLocalStorageHandle); -#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */ -} - -/* - * This function should be called by the user for any method once. - * The function will return a unique method ID, the user should maintain - * the ID for each method - */ -ITT_EXTERN_C unsigned int JITAPI iJIT_GetNewMethodID() -{ - static unsigned int methodID = 0x100000; - - if (methodID == 0) - return 0; /* ERROR : this is not a valid value */ - - return methodID++; -} |