com.oracle.svm.core.graal.snippets

Class CFunctionSnippets

java.lang.Object

org.graalvm.compiler.replacements.SnippetTemplate.AbstractTemplates

com.oracle.svm.core.graal.snippets.SubstrateTemplates

com.oracle.svm.core.graal.snippets.CFunctionSnippets

All Implemented Interfaces:

org.graalvm.compiler.api.replacements.SnippetTemplateCache, org.graalvm.compiler.replacements.Snippets

public final class CFunctionSnippets
extends SubstrateTemplates
implements org.graalvm.compiler.replacements.Snippets

Snippets for calling from Java to C. This is the inverse of CEntryPointSnippets. The Java frame anchor has to be set up because the top of the stack will no longer be a Java frame. In addition I might have to transition the thread state from being in Java code to being in native code on the way in, and to transition the thread state from native code to Java code on the way out. The transition is optional, based on the value of the CFunction annotation. Among the complications is that the C function may try to return while a safepoint is in progress. It must not be allowed back into Java code until the safepoint is finished.

Field Summary

Fields inherited from class org.graalvm.compiler.replacements.SnippetTemplate.AbstractTemplates

factories, options, providers, snippetReflection, target

Method Summary

Methods inherited from class com.oracle.svm.core.graal.snippets.SubstrateTemplates

snippet, snippet

Methods inherited from class org.graalvm.compiler.replacements.SnippetTemplate.AbstractTemplates

findMethod, template

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait