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| <div class="subTitle"><span class="moduleLabelInType">Module</span> <a href="../../../../module-summary.html">openj9.dtfj</a></div> |
| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">com.ibm.dtfj.image</a></div> |
| <h2 title="Interface ImageSection" class="title">Interface ImageSection</h2> |
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| <dt>All Known Subinterfaces:</dt> |
| <dd><code><a href="../java/JavaRuntimeMemorySection.html" title="interface in com.ibm.dtfj.java">JavaRuntimeMemorySection</a></code></dd> |
| </dl> |
| <dl> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="j9/BytecodeImageSection.html" title="class in com.ibm.dtfj.image.j9">BytecodeImageSection</a></code>, <code><a href="../../j9ddr/vm29/view/dtfj/java/DTFJGenericJavaRuntimeMemorySection.html" title="class in com.ibm.j9ddr.vm29.view.dtfj.java">DTFJGenericJavaRuntimeMemorySection</a></code>, <code><a href="../../j9ddr/vm29/view/dtfj/java/DTFJJavaRuntimeMemorySectionBase.html" title="class in com.ibm.j9ddr.vm29.view.dtfj.java">DTFJJavaRuntimeMemorySectionBase</a></code>, <code><a href="../../j9ddr/vm29/view/dtfj/java/DTFJMemoryTagRuntimeMemorySection.html" title="class in com.ibm.j9ddr.vm29.view.dtfj.java">DTFJMemoryTagRuntimeMemorySection</a></code>, <code><a href="j9/ImageSection.html" title="class in com.ibm.dtfj.image.j9">ImageSection</a></code>, <code><a href="../../j9ddr/view/dtfj/image/J9DDRImageSection.html" title="class in com.ibm.j9ddr.view.dtfj.image">J9DDRImageSection</a></code>, <code><a href="javacore/JCImageSection.html" title="class in com.ibm.dtfj.image.javacore">JCImageSection</a></code>, <code><a href="j9/JitImageSection.html" title="class in com.ibm.dtfj.image.j9">JitImageSection</a></code>, <code><a href="j9/ModuleImageSection.html" title="class in com.ibm.dtfj.image.j9">ModuleImageSection</a></code>, <code><a href="j9/RawImageSection.html" title="class in com.ibm.dtfj.image.j9">RawImageSection</a></code>, <code><a href="j9/StackImageSection.html" title="class in com.ibm.dtfj.image.j9">StackImageSection</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public interface <span class="typeNameLabel">ImageSection</span></pre> |
| <div class="block">Represents a contiguous range of memory in an address space.</div> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="ImagePointer.html" title="interface in com.ibm.dtfj.image">ImagePointer</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getBaseAddress()">getBaseAddress</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Gets the base address (the lowest) of memory in this section.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getName()">getName</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Gets the name of this section.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Properties.html?is-external=true" title="class or interface in java.util" class="externalLink" target="_blank">Properties</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getProperties()">getProperties</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Get the OS-specific properties for this section.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSize()">getSize</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Gets the size of the memory section.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isExecutable()">isExecutable</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Tests executable permission on memory section.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isReadOnly()">isReadOnly</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Tests read permission on memory section.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isShared()">isShared</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Tests shared permission on memory section.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
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| <h4>getBaseAddress</h4> |
| <pre class="methodSignature"><a href="ImagePointer.html" title="interface in com.ibm.dtfj.image">ImagePointer</a> getBaseAddress()</pre> |
| <div class="block">Gets the base address (the lowest) of memory in this section.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Base address pointer.</dd> |
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| <h4>getSize</h4> |
| <pre class="methodSignature">long getSize()</pre> |
| <div class="block">Gets the size of the memory section.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Size of section in bytes.</dd> |
| </dl> |
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| <a id="getName()"> |
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| <h4>getName</h4> |
| <pre class="methodSignature"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a> getName()</pre> |
| <div class="block">Gets the name of this section. |
| |
| Some memory sections are named. For example, the executable data in a module is typically called ".text". |
| |
| For memory sections without a specific name, a placeholder string will be returned. This method will never |
| return null.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>non-null name String.</dd> |
| </dl> |
| </li> |
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| <h4>isExecutable</h4> |
| <pre class="methodSignature">boolean isExecutable() |
| throws <a href="DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></pre> |
| <div class="block">Tests executable permission on memory section.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the memory pages in this section are marked executable. False otherwise.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></code></dd> |
| </dl> |
| </li> |
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| <h4>isReadOnly</h4> |
| <pre class="methodSignature">boolean isReadOnly() |
| throws <a href="DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></pre> |
| <div class="block">Tests read permission on memory section.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the memory pages in this section are marked read-only. False otherwise.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></code></dd> |
| </dl> |
| </li> |
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| <h4>isShared</h4> |
| <pre class="methodSignature">boolean isShared() |
| throws <a href="DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></pre> |
| <div class="block">Tests shared permission on memory section.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if this section is shared between processes. False otherwise.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></code></dd> |
| </dl> |
| </li> |
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| <h4>getProperties</h4> |
| <pre class="methodSignature"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Properties.html?is-external=true" title="class or interface in java.util" class="externalLink" target="_blank">Properties</a> getProperties()</pre> |
| <div class="block">Get the OS-specific properties for this section.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a table of OS-specific properties for this section. |
| Values which are commonly available include |
| <ul> |
| <li>"readable" -- whether the memory section can be read from</li> |
| <li>"writable" -- whether the memory section can be written to</li> |
| <li>"executable" -- whether data in the memory section can be executed</li> |
| </ul></dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>1.11</dd> |
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