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<div class="sub-title"><span class="module-label-in-type">Module</span>&nbsp;<a href="../../../../../module-summary.html">openj9.dtfj</a></div>
<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">com.ibm.j9ddr.corereaders.elf</a></div>
<h1 title="Class ELFMemorySource" class="title">Class ELFMemorySource</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">java.lang.Object</a>
<div class="inheritance"><a href="../memory/BaseMemoryRange.html" title="class in com.ibm.j9ddr.corereaders.memory">com.ibm.j9ddr.corereaders.memory.BaseMemoryRange</a>
<div class="inheritance"><a href="../memory/ProtectedMemoryRange.html" title="class in com.ibm.j9ddr.corereaders.memory">com.ibm.j9ddr.corereaders.memory.ProtectedMemoryRange</a>
<div class="inheritance">com.ibm.j9ddr.corereaders.elf.ELFMemorySource</div>
</div>
</div>
</div>
<section class="description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="../memory/IDetailedMemoryRange.html" title="interface in com.ibm.j9ddr.corereaders.memory">IDetailedMemoryRange</a></code>, <code><a href="../memory/IMemoryRange.html" title="interface in com.ibm.j9ddr.corereaders.memory">IMemoryRange</a></code>, <code><a href="../memory/IMemorySource.html" title="interface in com.ibm.j9ddr.corereaders.memory">IMemorySource</a></code>, <code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link" target="_blank">Comparable</a>&lt;<a href="../memory/IMemoryRange.html" title="interface in com.ibm.j9ddr.corereaders.memory">IMemoryRange</a>&gt;</code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">ELFMemorySource</span>
<span class="extends-implements">extends <a href="../memory/ProtectedMemoryRange.html" title="class in com.ibm.j9ddr.corereaders.memory">ProtectedMemoryRange</a>
implements <a href="../memory/IMemorySource.html" title="interface in com.ibm.j9ddr.corereaders.memory">IMemorySource</a>, <a href="../memory/IDetailedMemoryRange.html" title="interface in com.ibm.j9ddr.corereaders.memory">IDetailedMemoryRange</a></span></div>
<div class="block">Memory source that gets its data from an ELFFile.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field.summary">
<h2>Field Summary</h2>
<div class="inherited-list">
<h3 id="fields.inherited.from.class.com.ibm.j9ddr.corereaders.memory.ProtectedMemoryRange">Fields declared in class&nbsp;com.ibm.j9ddr.corereaders.memory.<a href="../memory/ProtectedMemoryRange.html" title="class in com.ibm.j9ddr.corereaders.memory">ProtectedMemoryRange</a></h3>
<code><a href="../memory/ProtectedMemoryRange.html#executable">executable</a>, <a href="../memory/ProtectedMemoryRange.html#readOnly">readOnly</a>, <a href="../memory/ProtectedMemoryRange.html#shared">shared</a></code></div>
<div class="inherited-list">
<h3 id="fields.inherited.from.class.com.ibm.j9ddr.corereaders.memory.BaseMemoryRange">Fields declared in class&nbsp;com.ibm.j9ddr.corereaders.memory.<a href="../memory/BaseMemoryRange.html" title="class in com.ibm.j9ddr.corereaders.memory">BaseMemoryRange</a></h3>
<code><a href="../memory/BaseMemoryRange.html#baseAddress">baseAddress</a>, <a href="../memory/BaseMemoryRange.html#size">size</a></code></div>
<div class="inherited-list">
<h3 id="fields.inherited.from.class.com.ibm.j9ddr.corereaders.memory.IDetailedMemoryRange">Fields declared in interface&nbsp;com.ibm.j9ddr.corereaders.memory.<a href="../memory/IDetailedMemoryRange.html" title="interface in com.ibm.j9ddr.corereaders.memory">IDetailedMemoryRange</a></h3>
<code><a href="../memory/IDetailedMemoryRange.html#EXECUTABLE">EXECUTABLE</a>, <a href="../memory/IDetailedMemoryRange.html#READABLE">READABLE</a>, <a href="../memory/IDetailedMemoryRange.html#WRITABLE">WRITABLE</a></code></div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method.summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>int</code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getAddressSpaceId()">getAddressSpaceId</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>int</code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getBytes(long,byte%5B%5D,int,int)">getBytes</a></span>&#8203;(long&nbsp;address,
byte[]&nbsp;buffer,
int&nbsp;offset,
int&nbsp;length)</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Reads data from the memory range</div>
</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a></code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getName()">getName</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Properties.html" title="class or interface in java.util" class="external-link" target="_blank">Properties</a></code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getProperties()">getProperties</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">&nbsp;</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>boolean</code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#isExecutable()">isExecutable</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>boolean</code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#isReadOnly()">isReadOnly</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Assuming that just because something is executable doesn't stop it being read only.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods.inherited.from.class.com.ibm.j9ddr.corereaders.memory.ProtectedMemoryRange">Methods declared in class&nbsp;com.ibm.j9ddr.corereaders.memory.<a href="../memory/ProtectedMemoryRange.html" title="class in com.ibm.j9ddr.corereaders.memory">ProtectedMemoryRange</a></h3>
<code><a href="../memory/ProtectedMemoryRange.html#isExecutable()">isExecutable</a>, <a href="../memory/ProtectedMemoryRange.html#isShared()">isShared</a></code></div>
<div class="inherited-list">
<h3 id="methods.inherited.from.class.com.ibm.j9ddr.corereaders.memory.BaseMemoryRange">Methods declared in class&nbsp;com.ibm.j9ddr.corereaders.memory.<a href="../memory/BaseMemoryRange.html" title="class in com.ibm.j9ddr.corereaders.memory">BaseMemoryRange</a></h3>
<code><a href="../memory/BaseMemoryRange.html#compareTo(com.ibm.j9ddr.corereaders.memory.IMemoryRange)">compareTo</a>, <a href="../memory/BaseMemoryRange.html#contains(long)">contains</a>, <a href="../memory/BaseMemoryRange.html#getBaseAddress()">getBaseAddress</a>, <a href="../memory/BaseMemoryRange.html#getSize()">getSize</a>, <a href="../memory/BaseMemoryRange.html#getTopAddress()">getTopAddress</a>, <a href="../memory/BaseMemoryRange.html#isBacked()">isBacked</a>, <a href="../memory/BaseMemoryRange.html#isSubRange(com.ibm.j9ddr.corereaders.memory.IMemoryRange)">isSubRange</a>, <a href="../memory/BaseMemoryRange.html#overlaps(com.ibm.j9ddr.corereaders.memory.IMemoryRange)">overlaps</a></code></div>
<div class="inherited-list">
<h3 id="methods.inherited.from.class.java.lang.Object">Methods declared in class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link" target="_blank">clone</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link" target="_blank">equals</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link" target="_blank">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link" target="_blank">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link" target="_blank">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link" target="_blank">notify</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link" target="_blank">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link" target="_blank">toString</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link" target="_blank">wait</a></code></div>
<div class="inherited-list">
<h3 id="methods.inherited.from.class.java.lang.Comparable">Methods declared in interface&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Comparable.html" title="class or interface in java.lang" class="external-link" target="_blank">Comparable</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Comparable.html#compareTo(T)" title="class or interface in java.lang" class="external-link" target="_blank">compareTo</a></code></div>
<div class="inherited-list">
<h3 id="methods.inherited.from.class.com.ibm.j9ddr.corereaders.memory.IMemoryRange">Methods declared in interface&nbsp;com.ibm.j9ddr.corereaders.memory.<a href="../memory/IMemoryRange.html" title="interface in com.ibm.j9ddr.corereaders.memory">IMemoryRange</a></h3>
<code><a href="../memory/IMemoryRange.html#contains(long)">contains</a>, <a href="../memory/IMemoryRange.html#getBaseAddress()">getBaseAddress</a>, <a href="../memory/IMemoryRange.html#getSize()">getSize</a>, <a href="../memory/IMemoryRange.html#getTopAddress()">getTopAddress</a>, <a href="../memory/IMemoryRange.html#isShared()">isShared</a>, <a href="../memory/IMemoryRange.html#isSubRange(com.ibm.j9ddr.corereaders.memory.IMemoryRange)">isSubRange</a>, <a href="../memory/IMemoryRange.html#overlaps(com.ibm.j9ddr.corereaders.memory.IMemoryRange)">overlaps</a></code></div>
<div class="inherited-list">
<h3 id="methods.inherited.from.class.com.ibm.j9ddr.corereaders.memory.IMemorySource">Methods declared in interface&nbsp;com.ibm.j9ddr.corereaders.memory.<a href="../memory/IMemorySource.html" title="interface in com.ibm.j9ddr.corereaders.memory">IMemorySource</a></h3>
<code><a href="../memory/IMemorySource.html#isBacked()">isBacked</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method.detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="getAddressSpaceId()">
<h3>getAddressSpaceId</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">getAddressSpaceId</span>()</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../memory/IMemoryRange.html#getAddressSpaceId()">getAddressSpaceId</a></code>&nbsp;in interface&nbsp;<code><a href="../memory/IMemoryRange.html" title="interface in com.ibm.j9ddr.corereaders.memory">IMemoryRange</a></code></dd>
<dt>Returns:</dt>
<dd>Address space ID that this range belongs to.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getBytes(long,byte[],int,int)">
<h3>getBytes</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">getBytes</span>&#8203;<span class="parameters">(long&nbsp;address,
byte[]&nbsp;buffer,
int&nbsp;offset,
int&nbsp;length)</span>
throws <span class="exceptions"><a href="../memory/MemoryFault.html" title="class in com.ibm.j9ddr.corereaders.memory">MemoryFault</a></span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../memory/IMemorySource.html#getBytes(long,byte%5B%5D,int,int)">IMemorySource</a></code></span></div>
<div class="block">Reads data from the memory range</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../memory/IMemorySource.html#getBytes(long,byte%5B%5D,int,int)">getBytes</a></code>&nbsp;in interface&nbsp;<code><a href="../memory/IMemorySource.html" title="interface in com.ibm.j9ddr.corereaders.memory">IMemorySource</a></code></dd>
<dt>Parameters:</dt>
<dd><code>address</code> - Starting address</dd>
<dd><code>buffer</code> - Buffer to read into</dd>
<dd><code>offset</code> - Offset in buffer to write to</dd>
<dd><code>length</code> - Number of bytes to read</dd>
<dt>Returns:</dt>
<dd>Bytes read</dd>
<dt>Throws:</dt>
<dd><code><a href="../memory/MemoryFault.html" title="class in com.ibm.j9ddr.corereaders.memory">MemoryFault</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getName()">
<h3>getName</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a></span>&nbsp;<span class="element-name">getName</span>()</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../memory/IMemoryRange.html#getName()">getName</a></code>&nbsp;in interface&nbsp;<code><a href="../memory/IMemoryRange.html" title="interface in com.ibm.j9ddr.corereaders.memory">IMemoryRange</a></code></dd>
<dt>Returns:</dt>
<dd>Name of this range (e.g. .text or stack), or null if range is unnamed.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getProperties()">
<h3>getProperties</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Properties.html" title="class or interface in java.util" class="external-link" target="_blank">Properties</a></span>&nbsp;<span class="element-name">getProperties</span>()</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../memory/IDetailedMemoryRange.html#getProperties()">getProperties</a></code>&nbsp;in interface&nbsp;<code><a href="../memory/IDetailedMemoryRange.html" title="interface in com.ibm.j9ddr.corereaders.memory">IDetailedMemoryRange</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isExecutable()">
<h3>isExecutable</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isExecutable</span>()</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../memory/IMemoryRange.html#isExecutable()">isExecutable</a></code>&nbsp;in interface&nbsp;<code><a href="../memory/IMemoryRange.html" title="interface in com.ibm.j9ddr.corereaders.memory">IMemoryRange</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isReadOnly()">
<h3>isReadOnly</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isReadOnly</span>()</div>
<div class="block">Assuming that just because something is executable doesn't stop it being read only.
(ReadOnly is not actually a very good property to expose since it relies on the lack
of other properties.)</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../memory/IMemoryRange.html#isReadOnly()">isReadOnly</a></code>&nbsp;in interface&nbsp;<code><a href="../memory/IMemoryRange.html" title="interface in com.ibm.j9ddr.corereaders.memory">IMemoryRange</a></code></dd>
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