view src/share/vm/prims/jvmtiEnv.xsl @ 3992:d1bdeef3e3e2

7098282: G1: assert(interval >= 0) failed: Sanity check, referencePolicy.cpp: 76 Summary: There is a race between one thread successfully forwarding and copying the klass mirror for the SoftReference class (including the static master clock) and another thread attempting to use the master clock while attempting to discover a soft reference object. Maintain a shadow copy of the soft reference master clock and use the shadow during reference discovery and reference processing. Reviewed-by: tonyp, brutisso, ysr
author johnc
date Wed, 12 Oct 2011 10:25:51 -0700
parents f95d63e2154a
children da91efe96a93
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<?xml version="1.0"?> 
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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>
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  </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="$name"/>
      <xsl:text> - pre-checked for NULL</xsl:text>
    </xsl:when>
    <xsl:otherwise>
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// </xsl:text>
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      <xsl:text> - NULL is a valid value, must be checked</xsl:text>
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<xsl:template match="jint" mode="advice">
  <xsl:param name="name"/>
  <xsl:if test="count(@min)=1">
    <xsl:text>
// </xsl:text>
    <xsl:value-of select="$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>