core/WordcodeTranslator.cpp

   1 /* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 4 -*- */
   2 /* vi: set ts=4 sw=4 expandtab: (add to ~/.vimrc: set modeline modelines=5) */
   3 /* ***** BEGIN LICENSE BLOCK *****
   4  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   5  *
   6  * The contents of this file are subject to the Mozilla Public License Version
   7  * 1.1 (the "License"); you may not use this file except in compliance with
   8  * the License. You may obtain a copy of the License at
   9  * http://www.mozilla.org/MPL/
  10  *
  11  * Software distributed under the License is distributed on an "AS IS" basis,
  12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  13  * for the specific language governing rights and limitations under the
  14  * License.
  15  *
  16  * The Original Code is [Open Source Virtual Machine.].
  17  *
  18  * The Initial Developer of the Original Code is
  19  * Adobe System Incorporated.
  20  * Portions created by the Initial Developer are Copyright (C) 2004-2006
  21  * the Initial Developer. All Rights Reserved.
  22  *
  23  * Contributor(s):
  24  *   Adobe AS3 Team
  25  *
  26  * Alternatively, the contents of this file may be used under the terms of
  27  * either the GNU General Public License Version 2 or later (the "GPL"), or
  28  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  29  * in which case the provisions of the GPL or the LGPL are applicable instead
  30  * of those above. If you wish to allow use of your version of this file only
  31  * under the terms of either the GPL or the LGPL, and not to allow others to
  32  * use your version of this file under the terms of the MPL, indicate your
  33  * decision by deleting the provisions above and replace them with the notice
  34  * and other provisions required by the GPL or the LGPL. If you do not delete
  35  * the provisions above, a recipient may use your version of this file under
  36  * the terms of any one of the MPL, the GPL or the LGPL.
  37  *
  38  * ***** END LICENSE BLOCK ***** */
  39
  40 #include "avmplus.h"
  41
  42 namespace avmplus
  43 {
  44 #ifdef SUPERWORD_PROFILING
  45     // 32-bit only
  46
  47     static FILE *swprof_code_fp = NULL;
  48     static FILE *swprof_sample_fp = NULL;
  49 #ifdef SUPERWORD_LIMIT
  50     static unsigned int sample_count = 0;
  51 #endif
  52
  53     void WordcodeTranslator::swprofStart()
  54     {
  55         swprof_code_fp = fopen("superwordprof_code.txt", "wb");
  56         if (swprof_code_fp == NULL)
  57             AvmLog("SUPERWORD PROFILING: COULD NOT OPEN CODE FILE.\n");
  58         else
  59         {
  60             unsigned int signature = 0xC0DEC0DE;
  61             fwrite(&signature, sizeof(uint32_t), 1, swprof_code_fp);
  62         }
  63         swprof_sample_fp = fopen("superwordprof_sample.txt", "wb");
  64         if (swprof_sample_fp == NULL)
  65             AvmLog("SUPERWORD PROFILING: COULD NOT OPEN SAMPLE FILE.\n");
  66         else
  67         {
  68             unsigned int signature = 0xDA1ADA1A;
  69             fwrite(&signature, sizeof(uint32_t), 1, swprof_sample_fp);
  70         }
  71     }
  72
  73     void WordcodeTranslator::swprofStop()
  74     {
  75         if (swprof_code_fp != NULL) { fclose(swprof_code_fp); swprof_code_fp = NULL; }
  76         if (swprof_sample_fp != NULL) { fclose(swprof_sample_fp); swprof_sample_fp = NULL; }
  77     }
  78
  79     void WordcodeTranslator::swprofCode(const uint32_t* start, const uint32_t* limit)
  80     {
  81         if (swprof_code_fp != NULL) {
  82             fwrite(&start, sizeof(uint32_t*), 1, swprof_code_fp);
  83             fwrite(&limit, sizeof(uint32_t*), 1, swprof_code_fp);
  84             fwrite(start, sizeof(uint32_t), limit-start, swprof_code_fp);
  85             fflush(swprof_code_fp);
  86         }
  87     }
  88
  89     void WordcodeTranslator::swprofPC(const uint32_t* pc)
  90     {
  91         if (swprof_sample_fp != NULL) {
  92             fwrite(&pc, sizeof(uint32_t*), 1, swprof_sample_fp);
  93 #ifdef SUPERWORD_LIMIT
  94             if (++sample_count == SUPERWORD_LIMIT) {
  95                 swprofStop();
  96                 AvmLog("SAMPLING HALTED.\n");
  97             }
  98 #endif
  99         }
 100     }
 101 #endif  // SUPERWORD_PROFILING
 102 }