Add m-esr52 at 52.6.0

5 files changed, 825 insertions, 0 deletions

diff --git a/js/src/devtools/vprof/manifest.mk b/js/src/devtools/vprof/manifest.mk
new file mode 100644
index 000000000..e18a17fb5
--- /dev/null
+++ b/js/src/devtools/vprof/manifest.mk
@@ -0,0 +1,7 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+avmplus_CXXSRCS := $(avmplus_CXXSRCS) \
+  $(curdir)/vprof.cpp \
+  $(NULL)
diff --git a/js/src/devtools/vprof/readme.txt b/js/src/devtools/vprof/readme.txt
new file mode 100644
index 000000000..f84bfc27e
--- /dev/null
+++ b/js/src/devtools/vprof/readme.txt
@@ -0,0 +1,97 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+The two files vprof.h and vprof.cpp implement a simple value-profiling mechanism. By including these two files in avmplus (or any other project), you can value profile data as you wish (currently integers).
+
+Usage:
+#include "vprof.h"  // in the source file you want to use it
+
+_vprof (value);
+
+At the end of the execution, for each probe you'll get the data associated with the probe, such as:
+
+File                                        line    avg     [min : max] total       count
+..\..\pcre\pcre_valid_utf8.cpp  182 50222.75916 [0 :    104947] 4036955604  80381
+
+The probe is defined at line 182 of file pcre_vali_utf8.cpp. It was called 80381 times. The min value of the probe was 0 while its max was 10497 and its average was  50222.75916. The total sum of all values of the probe is 4036955604. Later, I plan to add more options on the spectrum of data among others.
+
+A few typical uses
+------------------
+
+To see how many times a given function gets executed do:
+
+void f()
+{
+    _vprof(1);
+    ...
+}
+
+void f()
+{
+        _vprof(1);
+        ...
+       if (...) {
+           _vprof(1);
+           ...
+       } else {
+           _vprof(1);
+           ...
+       }
+}
+
+Here are a few examples of using the value-profiling utility:
+
+  _vprof (e);
+    at the end of program execution, you'll get a dump of the source location of this probe,
+    its min, max, average, the total sum of all instances of e, and the total number of times this probe was called.
+
+  _vprof (x > 0);
+    shows how many times and what percentage of the cases x was > 0,
+    that is the probablitiy that x > 0.
+
+ _vprof (n % 2 == 0);
+    shows how many times n was an even number
+    as well as th probablitiy of n being an even number.
+
+ _hprof (n, 4, 1000, 5000, 5001, 10000);
+    gives you the histogram of n over the given 4 bucket boundaries:
+        # cases <  1000
+        # cases >= 1000 and < 5000
+        # cases >= 5000 and < 5001
+        # cases >= 5001 and < 10000
+        # cases >= 10000
+
+ _nvprof ("event name", value);
+    all instances with the same name are merged
+    so, you can call _vprof with the same event name at difference places
+
+ _vprof (e, myProbe);
+    value profile e and call myProbe (void* vprofID) at the profiling point.
+    inside the probe, the client has the predefined variables:
+    _VAL, _COUNT, _SUM, _MIN, _MAX, and the general purpose registers
+    _IVAR1, ..., IVAR4      general integer registrs
+    _I64VAR1, ..., I64VAR4  general integer64 registrs
+    _DVAR1, ..., _DVAR4     general double registers
+    _GENPTR a generic pointer that can be used by the client
+    the number of registers can be changed in vprof.h
+
+Named Events
+------------
+_nvprof ("event name", value);
+    all instances with the same name are merged
+    so, you can call _vprof with the same event name at difference places
+
+
+Custom Probes
+--------------
+You can call your own custom probe at the profiling point.
+_vprof (v, myProbe);
+   value profile v and call myProbe (void* vprofID) at the profiling point
+   inside the probe, the client has the predefined variables:
+   _VAL, _COUNT, _SUM, _MIN, _MAX, and the general purpose registers
+   _IVAR1, ..., IVAR4   general integer registrs
+   _I64VAR1, ..., I64VAR4 general integer64 registrs
+   _DVAR1, ..., _DVAR4  general double registers
+  the number of registers can be changed in vprof.h
+  _GENPTR a generic pointer that can be used for almost anything
diff --git a/js/src/devtools/vprof/testVprofMT.c b/js/src/devtools/vprof/testVprofMT.c
new file mode 100644
index 000000000..b6041d636
--- /dev/null
+++ b/js/src/devtools/vprof/testVprofMT.c
@@ -0,0 +1,92 @@
+/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <windows.h>
+#include <stdio.h>
+#include <time.h>
+
+#include "vprof.h"
+
+static void cProbe (void* vprofID)
+{
+    if (_VAL == _IVAR1) _I64VAR1 ++;
+    _IVAR1 = _IVAR0;
+
+    if (_VAL == _IVAR0) _I64VAR0 ++;
+    _IVAR0 = (int) _VAL;
+
+    _DVAR0 = ((double)_I64VAR0) / _COUNT;
+    _DVAR1 = ((double)_I64VAR1) / _COUNT;
+}
+
+//__declspec (thread) boolean cv;
+//#define if(c) cv = (c); _vprof (cv); if (cv)
+//#define if(c) cv = (c); _vprof (cv, cProbe); if (cv)
+
+#define THREADS 1
+#define COUNT 100000
+#define SLEEPTIME 0
+
+static int64_t evens = 0;
+static int64_t odds = 0;
+
+void sub(int val)
+{
+    int i;
+    //_vprof (1);
+    for (i = 0; i < COUNT; i++) {
+        //_nvprof ("Iteration", 1);
+        //_nvprof ("Iteration", 1);
+        _vprof (i);
+        //_vprof (i);
+        //_hprof(i, 3, (int64_t) 1000, (int64_t)2000, (int64_t)3000);
+        //_hprof(i, 3, 10000, 10001, 3000000);
+        //_nhprof("Event", i, 3, 10000, 10001, 3000000);
+        //_nhprof("Event", i, 3, 10000, 10001, 3000000);
+        //Sleep(SLEEPTIME);
+        if (i % 2 == 0) {
+            //_vprof (i);
+            ////_hprof(i, 3, 10000, 10001, 3000000);
+            //_nvprof ("Iteration", i);
+            evens ++;
+        } else {
+            //_vprof (1);
+            _vprof (i, cProbe);
+            odds ++;
+        }
+        //_nvprof ("Iterate", 1);
+    }
+    //printf("sub %d done.\n", val);
+}
+
+HANDLE array[THREADS];
+
+static int run (void)
+{
+    int i;
+
+    time_t start_time = time(0);
+
+    for (i = 0; i < THREADS; i++) {
+        array[i] = CreateThread(0, 0, (LPTHREAD_START_ROUTINE)sub, (LPVOID)i, 0, 0);
+    }
+
+    for (i = 0; i < THREADS; i++) {
+        WaitForSingleObject(array[i], INFINITE);
+    }
+
+    return 0;
+}
+
+int main ()
+{
+    DWORD start, end;
+
+    start = GetTickCount ();
+    run ();
+    end = GetTickCount ();
+
+    printf ("\nRun took %d msecs\n\n", end-start);
+}
diff --git a/js/src/devtools/vprof/vprof.cpp b/js/src/devtools/vprof/vprof.cpp
new file mode 100644
index 000000000..e208d0405
--- /dev/null
+++ b/js/src/devtools/vprof/vprof.cpp
@@ -0,0 +1,354 @@
+/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "VMPI.h"
+
+// Note, this is not supported in configurations with more than one AvmCore running
+// in the same process.
+
+#ifdef WIN32
+#include "windows.h"
+#else
+#define __cdecl
+#include <stdarg.h>
+#include <string.h>
+#endif
+
+#include "vprof.h"
+
+#ifndef MIN
+#define MIN(x,y) ((x) <= (y) ? x : y)
+#endif
+#ifndef MAX
+#define MAX(x,y) ((x) >= (y) ? x : y)
+#endif
+
+#ifndef MAXINT
+#define MAXINT int(unsigned(-1)>>1)
+#endif
+
+#ifndef MAXINT64
+#define MAXINT64 int64_t(uint64_t(-1)>>1)
+#endif
+
+#ifndef __STDC_WANT_SECURE_LIB__
+#define sprintf_s(b,size,fmt,...) sprintf((b),(fmt),__VA_ARGS__)
+#endif
+
+#if THREADED
+#define DO_LOCK(lock) Lock(lock); {
+#define DO_UNLOCK(lock) }; Unlock(lock)
+#else
+#define DO_LOCK(lock) { (void)(lock);
+#define DO_UNLOCK(lock) }
+#endif
+
+#if THREAD_SAFE
+#define LOCK(lock) DO_LOCK(lock)
+#define UNLOCK(lock) DO_UNLOCK(lock)
+#else
+#define LOCK(lock) { (void)(lock);
+#define UNLOCK(lock) }
+#endif
+
+static entry* entries = nullptr;
+static bool notInitialized = true;
+static long glock = LOCK_IS_FREE;
+
+#define Lock(lock) while (_InterlockedCompareExchange(lock, LOCK_IS_TAKEN, LOCK_IS_FREE) == LOCK_IS_TAKEN){};
+#define Unlock(lock) _InterlockedCompareExchange(lock, LOCK_IS_FREE, LOCK_IS_TAKEN);
+
+#if defined(WIN32)
+	static void vprof_printf(const char* format, ...)
+	{
+		va_list args;
+		va_start(args, format);
+
+		char buf[1024];
+		vsnprintf(buf, sizeof(buf), format, args);
+		
+		va_end(args);
+
+		printf(buf);
+		::OutputDebugStringA(buf);
+	}
+#else
+	#define vprof_printf printf
+#endif
+
+static inline entry* reverse (entry* s)
+{
+    entry_t e, n, p;
+
+    p = nullptr;
+    for (e = s; e; e = n) {
+        n = e->next;
+        e->next = p;
+        p = e;
+    }
+
+    return p;
+}
+
+static char* f (double d)
+{
+    static char s[80];
+    char* p;
+    sprintf_s (s, sizeof(s), "%lf", d);
+    p = s+VMPI_strlen(s)-1;
+    while (*p == '0') {
+        *p = '\0';
+        p--;
+        if (p == s) break;
+    }
+    if (*p == '.') *p = '\0';
+    return s;
+}
+
+static void dumpProfile (void)
+{
+    entry_t e;
+
+    entries = reverse(entries);
+    vprof_printf ("event avg [min : max] total count\n");
+    for (e = entries; e; e = e->next) {
+        if (e->count == 0) continue;  // ignore entries with zero count.
+        vprof_printf ("%s", e->file);
+        if (e->line >= 0) {
+            vprof_printf (":%d", e->line);
+        }
+        vprof_printf (" %s [%lld : %lld] %lld %lld ",
+                f(((double)e->sum)/((double)e->count)), (long long int)e->min, (long long int)e->max, (long long int)e->sum, (long long int)e->count);
+        if (e->h) {
+            int j = MAXINT;
+            for (j = 0; j < e->h->nbins; j ++) {
+                vprof_printf ("(%lld < %lld) ", (long long int)e->h->count[j], (long long int)e->h->lb[j]);
+            }
+            vprof_printf ("(%lld >= %lld) ", (long long int)e->h->count[e->h->nbins], (long long int)e->h->lb[e->h->nbins-1]);
+        }
+        if (e->func) {
+            int j;
+            for (j = 0; j < NUM_EVARS; j++) {
+                if (e->ivar[j] != 0) {
+                    vprof_printf ("IVAR%d %d ", j, e->ivar[j]);
+                }
+            }
+            for (j = 0; j < NUM_EVARS; j++) {
+                if (e->i64var[j] != 0) {
+                    vprof_printf ("I64VAR%d %lld ", j, (long long int)e->i64var[j]);
+                }
+            }
+            for (j = 0; j < NUM_EVARS; j++) {
+                if (e->dvar[j] != 0) {
+                    vprof_printf ("DVAR%d %lf ", j, e->dvar[j]);
+                }
+            }
+        }
+        vprof_printf ("\n");
+    }
+    entries = reverse(entries);
+}
+
+static inline entry_t findEntry (char* file, int line)
+{
+    for (entry_t e =  entries; e; e = e->next) {
+        if ((e->line == line) && (VMPI_strcmp (e->file, file) == 0)) {
+            return e;
+        }
+    }
+    return nullptr;
+}
+
+// Initialize the location pointed to by 'id' to a new value profile entry
+// associated with 'file' and 'line', or do nothing if already initialized.
+// An optional final argument provides a user-defined probe function.
+
+int initValueProfile(void** id, char* file, int line, ...)
+{
+    DO_LOCK (&glock);
+        entry_t e = (entry_t) *id;
+        if (notInitialized) {
+            atexit (dumpProfile);
+            notInitialized = false;
+        }
+
+        if (e == nullptr) {
+            e = findEntry (file, line);
+            if (e) {
+                *id = e;
+            }
+        }
+
+        if (e == nullptr) {
+            va_list va;
+            e = (entry_t) malloc (sizeof(entry));
+            e->lock = LOCK_IS_FREE;
+            e->file = file;
+            e->line = line;
+            e->value = 0;
+            e->sum = 0;
+            e->count = 0;
+            e->min = 0;
+            e->max = 0;
+            // optional probe function argument
+            va_start (va, line);
+            e->func = (void (__cdecl*)(void*)) va_arg (va, void*);
+            va_end (va);
+            e->h = nullptr;
+            e->genptr = nullptr;
+            VMPI_memset (&e->ivar,   0, sizeof(e->ivar));
+            VMPI_memset (&e->i64var, 0, sizeof(e->i64var));
+            VMPI_memset (&e->dvar,   0, sizeof(e->dvar));
+            e->next = entries;
+            entries = e;
+            *id = e;
+        }
+    DO_UNLOCK (&glock);
+
+    return 0;
+}
+
+// Record a value profile event.
+
+int profileValue(void* id, int64_t value)
+{
+    entry_t e = (entry_t) id;
+    long* lock = &(e->lock);
+    LOCK (lock);
+        e->value = value;
+        if (e->count == 0) {
+            e->sum = value;
+            e->count = 1;
+            e->min = value;
+            e->max = value;
+        } else {
+            e->sum += value;
+            e->count ++;
+            e->min = MIN (e->min, value);
+            e->max = MAX (e->max, value);
+        }
+        if (e->func) e->func (e);
+    UNLOCK (lock);
+
+    return 0;
+}
+
+// Initialize the location pointed to by 'id' to a new histogram profile entry
+// associated with 'file' and 'line', or do nothing if already initialized.
+
+int initHistProfile(void** id, char* file, int line, int nbins, ...)
+{
+    DO_LOCK (&glock);
+        entry_t e = (entry_t) *id;
+        if (notInitialized) {
+            atexit (dumpProfile);
+            notInitialized = false;
+        }
+
+        if (e == nullptr) {
+            e = findEntry (file, line);
+            if (e) {
+                *id = e;
+            }
+        }
+
+        if (e == nullptr) {
+            va_list va;
+            hist_t h;
+            int b, n, s;
+            int64_t* lb;
+
+            e = (entry_t) malloc (sizeof(entry));
+            e->lock = LOCK_IS_FREE;
+            e->file = file;
+            e->line = line;
+            e->value = 0;
+            e->sum = 0;
+            e->count = 0;
+            e->min = 0;
+            e->max = 0;
+            e->func = nullptr;
+            e->h = h = (hist_t) malloc (sizeof(hist));
+            n = 1+MAX(nbins,0);
+            h->nbins = n-1;
+            s = n*sizeof(int64_t);
+            lb = (int64_t*) malloc (s);
+            h->lb = lb;
+            VMPI_memset (h->lb, 0, s);
+            h->count = (int64_t*) malloc (s);
+            VMPI_memset (h->count, 0, s);
+
+            va_start (va, nbins);
+            for (b = 0; b < nbins; b++) {
+                //lb[b] = va_arg (va, int64_t);
+                lb[b] = va_arg (va, int);
+            }
+            lb[b] = MAXINT64;
+            va_end (va);
+
+            e->genptr = nullptr;
+            VMPI_memset (&e->ivar,   0, sizeof(e->ivar));
+            VMPI_memset (&e->i64var, 0, sizeof(e->i64var));
+            VMPI_memset (&e->dvar,   0, sizeof(e->dvar));
+            e->next = entries;
+            entries = e;
+            *id = e;
+        }
+    DO_UNLOCK (&glock);
+
+    return 0;
+}
+
+// Record a histogram profile event.
+
+int histValue(void* id, int64_t value)
+{
+    entry_t e = (entry_t) id;
+    long* lock = &(e->lock);
+    hist_t h = e->h;
+    int nbins = h->nbins;
+    int64_t* lb = h->lb;
+    int b;
+
+    LOCK (lock);
+        e->value = value;
+        if (e->count == 0) {
+            e->sum = value;
+            e->count = 1;
+            e->min = value;
+            e->max = value;
+        } else {
+            e->sum += value;
+            e->count ++;
+            e->min = MIN (e->min, value);
+            e->max = MAX (e->max, value);
+        }
+        for (b = 0; b < nbins; b ++) {
+            if (value < lb[b]) break;
+        }
+        h->count[b] ++;
+    UNLOCK (lock);
+
+    return 0;
+}
+
+#if defined(_MSC_VER) && defined(_M_IX86)
+uint64_t readTimestampCounter()
+{
+	// read the cpu cycle counter.  1 tick = 1 cycle on IA32
+	_asm rdtsc;
+}
+#elif defined(__GNUC__) && (__i386__ || __x86_64__)
+uint64_t readTimestampCounter()
+{
+   uint32_t lo, hi;
+   __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
+   return (uint64_t(hi) << 32) | lo;
+}
+#else
+// add stub for platforms without it, so fat builds don't fail
+uint64_t readTimestampCounter() { return 0; }
+#endif
+
diff --git a/js/src/devtools/vprof/vprof.h b/js/src/devtools/vprof/vprof.h
new file mode 100644
index 000000000..88a3391a2
--- /dev/null
+++ b/js/src/devtools/vprof/vprof.h
@@ -0,0 +1,275 @@
+/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//
+//  Here are a few examples of using the value-profiling utility:
+//
+//  _vprof (e);
+//    at the end of program execution, you'll get a dump of the source location of this probe,
+//    its min, max, average, the total sum of all instances of e, and the total number of times this probe was called.
+//
+//  _vprof (x > 0);
+//    shows how many times and what percentage of the cases x was > 0,
+//    that is the probablitiy that x > 0.
+//
+// _vprof (n % 2 == 0);
+//    shows how many times n was an even number
+//    as well as th probablitiy of n being an even number.
+//
+// _hprof (n, 4, 1000, 5000, 5001, 10000);
+//    gives you the histogram of n over the given 4 bucket boundaries:
+//        # cases <  1000
+//        # cases >= 1000 and < 5000
+//        # cases >= 5000 and < 5001
+//        # cases >= 5001 and < 10000
+//        # cases >= 10000
+//
+// _nvprof ("event name", value);
+//    all instances with the same name are merged
+//    so, you can call _vprof with the same event name at difference places
+//
+// _vprof (e, myProbe);
+//    value profile e and call myProbe (void* vprofID) at the profiling point.
+//    inside the probe, the client has the predefined variables:
+//    _VAL, _COUNT, _SUM, _MIN, _MAX, and the general purpose registers
+//    _IVAR1, ..., IVAR4      general integer registrs
+//    _I64VAR1, ..., I64VAR4  general integer64 registrs
+//    _DVAR1, ..., _DVAR4     general double registers
+//    _GENPTR a generic pointer that can be used by the client
+//    the number of registers can be changed in vprof.h
+//
+
+#ifndef devtools_vprof_vprof_h
+#define devtools_vprof_vprof_h
+//
+// If the application for which you want to use vprof is threaded, THREADED must be defined as 1, otherwise define it as 0
+//
+// If your application is not threaded, define THREAD_SAFE 0,
+// otherwise, you have the option of setting THREAD_SAFE to 1 which results in exact counts or to 0 which results in a much more efficient but non-exact counts
+//
+#define THREADED 0
+#define THREAD_SAFE 0
+
+#include "VMPI.h"
+
+// Note, this is not supported in configurations with more than one AvmCore running
+// in the same process.
+
+// portable align macro
+#if defined(_MSC_VER)
+	#define vprof_align8(t) __declspec(align(8)) t
+#elif defined(__GNUC__)
+	#define vprof_align8(t) t __attribute__ ((aligned (8)))
+#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+	#define vprof_align8(t) t __attribute__ ((aligned (8)))
+#elif defined(VMCFG_SYMBIAN)
+	#define vprof_align8(t) t __attribute__ ((aligned (8)))
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int initValueProfile(void** id, char* file, int line, ...);
+int profileValue(void* id, int64_t value);
+int initHistProfile(void** id, char* file, int line, int nbins, ...);
+int histValue(void* id, int64_t value);
+uint64_t readTimestampCounter();
+
+#ifdef __cplusplus
+}
+#endif
+
+//#define DOPROF
+
+#ifndef DOPROF
+#define _nvprof(e,v)
+#ifndef VMCFG_SYMBIAN
+#define _vprof(v,...)
+#define _hprof(v,n,...)
+#define _nhprof(e,v,n,...)
+#define _ntprof_begin(e)
+#define _ntprof_end(e)
+#define _jvprof_init(id,...)
+#define _jnvprof_init(id,e,...)
+#define _jhprof_init(id,n,...)
+#define _jnhprof_init(id,e,n,...)
+#define _jvprof(id,v)
+#define _jhprof(id,v)
+#endif // ! VMCFG_SYMBIAN
+#else
+
+// Historical/compatibility note:
+// The macros below were originally written using conditional expressions, not if/else.  The original author
+// said that this was done to allow _vprof and _nvprof to be used in an expression context, but the old code
+// had already wrapped the macro bodies in { }, so it is not clear how this could have worked.  At present,
+// the profiling macros must appear in a statement context only.
+
+#define _vprof(v,...) \
+do { \
+    static void* id = 0; \
+    if (id == 0) \
+        initValueProfile(&id, __FILE__, __LINE__, ##__VA_ARGS__, NULL); \
+    profileValue(id, (int64_t) (v)); \
+} while (0)
+
+#define _nvprof(e,v) \
+do { \
+    static void* id = 0; \
+    if (id == 0) \
+        initValueProfile(&id, (char*) (e), -1, NULL); \
+    profileValue(id, (int64_t) (v)); \
+} while (0)
+
+#define _hprof(v,n,...) \
+do { \
+    static void* id = 0; \
+    if (id == 0) \
+        initHistProfile(&id, __FILE__, __LINE__, (int) (n), ##__VA_ARGS__); \
+    histValue(id, (int64_t) (v)); \
+} while (0)
+
+#define _nhprof(e,v,n,...) \
+do { \
+    static void* id = 0; \
+    if (id == 0) \
+        initHistProfile(&id, (char*) (e), -1, (int) (n), ##__VA_ARGS__); \
+    histValue(id, (int64_t) (v)); \
+} while (0)
+
+// Profile execution time between _ntprof_begin(e) and _ntprof_end(e).
+// The tag 'e' must match at the beginning and end of the region to
+// be timed.  Regions may be nested or overlap arbitrarily, as it is
+// the tag alone that defines the begin/end correspondence.
+
+#define _ntprof_begin(e) \
+do { \
+    static void* id = 0; \
+    if (id == 0) \
+        initValueProfile(&id, (char*)(e), -1, NULL); \
+    ((entry_t)id)->i64var[0] = readTimestampCounter(); \
+} while (0)
+
+// Assume 2.6 Ghz CPU
+#define TICKS_PER_USEC 2600
+
+#define _ntprof_end(e) \
+do { \
+    static void* id = 0; \
+    uint64_t stop = readTimestampCounter(); \
+    if (id == 0) \
+        initValueProfile(&id, (char*)(e), -1, NULL); \
+    uint64_t start = ((entry_t)id)->i64var[0]; \
+    uint64_t usecs = (stop - start) / TICKS_PER_USEC; \
+    profileValue(id, usecs); \
+} while (0)
+
+// These macros separate the creation of a profile record from its later usage.
+// They are intended for profiling JIT-generated code.  Once created, the JIT can
+// bind a pointer to the profile record into the generated code, which can then
+// record profile events during execution.
+
+#define _jvprof_init(id,...) \
+    if (*(id) == 0) \
+        initValueProfile((id), __FILE__, __LINE__, ##__VA_ARGS__, NULL)
+
+#define _jnvprof_init(id,e,...) \
+    if (*(id) == 0) \
+        initValueProfile((id), (char*) (e), -1, ##__VA_ARGS__, NULL)
+
+#define _jhprof_init(id,n,...) \
+    if (*(id) == 0) \
+        initHistProfile((id), __FILE__, __LINE__, (int) (n), ##__VA_ARGS__)
+
+#define _jnhprof_init(id,e,n,...) \
+    if (*(id) == 0) \
+        initHistProfile((id), (char*) (e), -1, (int) (n), ##__VA_ARGS__)
+
+// Calls to the _jvprof and _jhprof macros must be wrapped in a non-inline
+// function in order to be invoked from JIT-compiled code.
+
+#define _jvprof(id,v) \
+    profileValue((id), (int64_t) (v))
+
+#define _jhprof(id,v) \
+    histValue((id), (int64_t) (v))
+
+#endif
+
+#define NUM_EVARS 4
+
+enum {
+    LOCK_IS_FREE = 0,
+    LOCK_IS_TAKEN = 1
+};
+
+extern
+#ifdef __cplusplus
+"C"
+#endif
+long _InterlockedCompareExchange (
+   long volatile * Destination,
+   long Exchange,
+   long Comperand
+);
+
+typedef struct hist hist;
+
+typedef struct hist {
+    int nbins;
+    int64_t* lb;
+    int64_t* count;
+} *hist_t;
+
+typedef struct entry entry;
+
+typedef struct entry {
+    long lock;
+    char* file;
+    int line;
+    int64_t value;
+    int64_t count;
+    int64_t sum;
+    int64_t min;
+    int64_t max;
+    void (*func)(void*);
+    hist* h;
+
+    entry* next;
+
+    // exposed to the clients
+    void* genptr;
+    int ivar[NUM_EVARS];
+    vprof_align8(int64_t) i64var[NUM_EVARS];
+    vprof_align8(double) dvar[NUM_EVARS];
+    //
+
+    char pad[128]; // avoid false sharing
+} *entry_t;
+
+#define _VAL ((entry_t)vprofID)->value
+#define _COUNT ((entry_t)vprofID)->count
+#define _SUM ((entry_t)vprofID)->sum
+#define _MIN ((entry_t)vprofID)->min
+#define _MAX ((entry_t)vprofID)->max
+
+#define _GENPTR ((entry_t)vprofID)->genptr
+
+#define _IVAR0 ((entry_t)vprofID)->ivar[0]
+#define _IVAR1 ((entry_t)vprofID)->ivar[1]
+#define _IVAR2 ((entry_t)vprofID)->ivar[2]
+#define _IVAR3 ((entry_t)vprofID)->ivar[3]
+
+#define _I64VAR0 ((entry_t)vprofID)->i64var[0]
+#define _I64VAR1 ((entry_t)vprofID)->i64var[1]
+#define _I64VAR2 ((entry_t)vprofID)->i64var[2]
+#define _I64VAR3 ((entry_t)vprofID)->i64var[3]
+
+#define _DVAR0 ((entry_t)vprofID)->dvar[0]
+#define _DVAR1 ((entry_t)vprofID)->dvar[1]
+#define _DVAR2 ((entry_t)vprofID)->dvar[2]
+#define _DVAR3 ((entry_t)vprofID)->dvar[3]
+
+#endif /* devtools_vprof_vprof_h */