view src/share/vm/prims/jvmtiEnv.xsl @ 3762:5c0a3c1858b1

7048782: CMS: assert(last_chunk_index_to_check<= last_chunk_index) failed: parCardTableModRefBS.cpp:359 Summary: The LNC array is sized before the start of a scavenge, while the heap may expand during a scavenge. With CMS, the last block of an arbitrary suffice of the LNC array may expand due to coalition with the expansion delta. We now take care not to attempt access past the end of the LNC array. LNC array code will be cleaned up and suitably encapsulated as part of the forthcoming performance RFE 7043675. Reviewed-by: brutisso
author ysr
date Thu, 02 Jun 2011 10:23:36 -0700
parents f95d63e2154a
children da91efe96a93
line wrap: on
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<?xml version="1.0"?> 
<!--
 Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
 DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 This code is free software; you can redistribute it and/or modify it
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 published by the Free Software Foundation.

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-->

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">

<xsl:import href="jvmtiLib.xsl"/>

<xsl:output method="text" indent="no" omit-xml-declaration="yes"/>

<xsl:template match="/">
  <xsl:apply-templates select="specification"/>
</xsl:template>

<xsl:template match="specification">
  <xsl:call-template name="sourceHeader"/>
  <xsl:text>

// end file prefix - do not modify or remove this line
</xsl:text>
  <xsl:apply-templates select="functionsection"/>
</xsl:template>

<xsl:template match="functionsection">
  <xsl:apply-templates select="category"/>
</xsl:template>

<xsl:template match="category">
  <xsl:text>
  //
  // </xsl:text><xsl:value-of select="@label"/><xsl:text> functions
  // 
</xsl:text>
  <xsl:apply-templates select="function[not(contains(@impl,'unimpl'))]"/>
</xsl:template>

<xsl:template match="function">
  <xsl:apply-templates select="parameters" mode="advice"/>
  <xsl:text>
jvmtiError
JvmtiEnv::</xsl:text>
  <xsl:if test="count(@hide)=1">
    <xsl:value-of select="@hide"/>
  </xsl:if>
  <xsl:value-of select="@id"/>
  <xsl:text>(</xsl:text>
  <xsl:apply-templates select="parameters" mode="HotSpotSig"/>
  <xsl:text>) {</xsl:text>
  <xsl:for-each select="parameters/param/jclass">
    <xsl:if test="count(@method|@field)=0">
<xsl:text>
  if (java_lang_Class::is_primitive(k_mirror)) {
    // DO PRIMITIVE CLASS PROCESSING
    return JVMTI_ERROR_MUST_POSSESS_CAPABILITY;
  }
  klassOop k_oop = java_lang_Class::as_klassOop(k_mirror);
  if (k_oop == NULL) {
    return JVMTI_ERROR_INVALID_CLASS;
  }</xsl:text>
    </xsl:if>
  </xsl:for-each>
<xsl:text>
  return JVMTI_ERROR_MUST_POSSESS_CAPABILITY;
} /* end </xsl:text>
  <xsl:if test="count(@hide)=1">
    <xsl:value-of select="@hide"/>
  </xsl:if>
  <xsl:value-of select="@id"/>
  <xsl:text> */

</xsl:text>
</xsl:template>


<!-- ======== ADVICE ======== -->

<xsl:template match="parameters" mode="advice">
  <xsl:apply-templates select="param" mode="advice"/>
</xsl:template>

<xsl:template match="param" mode="advice">
  <xsl:apply-templates select="child::*[position()=1]" mode="advice">
    <xsl:with-param name="name" select="@id"/>
  </xsl:apply-templates>
</xsl:template>

<xsl:template match="jthread" mode="advice">
  <xsl:param name="name"/>
  <xsl:choose>
    <xsl:when test="count(@impl)=0 or not(contains(@impl,'noconvert'))">
      <xsl:text>
// Threads_lock NOT held, java_thread not protected by lock
// java_thread - pre-checked</xsl:text>
    </xsl:when>
    <xsl:otherwise>
      <xsl:text>
// Threads_lock NOT held
// </xsl:text>
      <xsl:value-of select="$name"/>
      <xsl:text> - NOT pre-checked</xsl:text>
    </xsl:otherwise>
  </xsl:choose>
</xsl:template>

<xsl:template match="jrawMonitorID" mode="advice">
  <xsl:param name="name"/>
  <xsl:text>
// rmonitor - pre-checked for validity</xsl:text>
</xsl:template>

<xsl:template match="jframeID" mode="advice">
  <xsl:param name="name"/>
  <xsl:text>
// java_thread - unchecked 
// depth - pre-checked as non-negative</xsl:text>
</xsl:template>

<xsl:template match="jmethodID" mode="advice">
  <xsl:param name="name"/>
  <xsl:text>
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method</xsl:text>
</xsl:template>

<xsl:template match="jfieldID" mode="advice">
  <xsl:param name="name"/>
</xsl:template>

<xsl:template match="jclass" mode="advice">
  <xsl:param name="name"/>
  <!--
    classes passed as part of a class/method or class/field pair are used
    by the wrapper to get the internal type but are not needed by nor 
    passed to the implementation layer.
  -->
  <xsl:if test="count(@method|@field)=0">
    <xsl:text>
// k_mirror - may be primitive, this must be checked</xsl:text>
  </xsl:if>
</xsl:template>

<xsl:template match="nullok" mode="advice">
</xsl:template>

<xsl:template match="outptr|outbuf|allocfieldbuf|ptrtype|inptr|inbuf|vmbuf|allocbuf|agentbuf|allocallocbuf" mode="advice">
  <xsl:param name="name"/>
  <xsl:choose>
    <xsl:when test="count(nullok)=0">
      <xsl:text>
// </xsl:text>
      <xsl:value-of select="$name"/>
      <xsl:text> - pre-checked for NULL</xsl:text>
    </xsl:when>
    <xsl:otherwise>
      <xsl:text>
// </xsl:text>
      <xsl:value-of select="$name"/>
      <xsl:text> - NULL is a valid value, must be checked</xsl:text>
    </xsl:otherwise>
  </xsl:choose>
</xsl:template>

<xsl:template match="jint" mode="advice">
  <xsl:param name="name"/>
  <xsl:if test="count(@min)=1">
    <xsl:text>
// </xsl:text>
    <xsl:value-of select="$name"/>
    <xsl:text> - pre-checked to be greater than or equal to </xsl:text>
    <xsl:value-of select="@min"/>
  </xsl:if>
</xsl:template>

<xsl:template match="jobject|jvalue|jthreadGroup|enum|jlong|jfloat|jdouble|jlocation|jboolean|char|uchar|size_t|void|varargs|struct" mode="advice">
  <xsl:param name="name"/>
</xsl:template>

</xsl:stylesheet>