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8205113: Update JVMTI doc references to object allocation tracking

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Update the JVMTI VMObjectAlloc spec

Reviewed-by: dholmes, sspitsyn
This commit is contained in:
Jeremy Manson 2018-06-23 01:22:52 -07:00
parent 1a1303e1a6
commit c1cfcdcd25
1 changed files with 8 additions and 3 deletions
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11
src/hotspot/share/prims/jvmti.xml
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@ -13507,9 +13507,8 @@ myInit() {
<event label="VM Object Allocation" <event label="VM Object Allocation"
id="VMObjectAlloc" const="JVMTI_EVENT_VM_OBJECT_ALLOC" num="84"> id="VMObjectAlloc" const="JVMTI_EVENT_VM_OBJECT_ALLOC" num="84">
<description> <description>
Sent when a method causes the virtual machine to allocate an Sent when a method causes the virtual machine to directly allocate an
Object visible to Java programming language code and the Object visible to Java programming language code.
allocation is not detectable by other intrumentation mechanisms.
Generally object allocation should be detected by instrumenting Generally object allocation should be detected by instrumenting
the bytecodes of allocating methods. the bytecodes of allocating methods.
Object allocation generated in native code by JNI function Object allocation generated in native code by JNI function
@ -13520,6 +13519,12 @@ myInit() {
VM. These methods should send this event. VM. These methods should send this event.
Virtual machines which are incapable of bytecode instrumentation Virtual machines which are incapable of bytecode instrumentation
for some or all of their methods can send this event. for some or all of their methods can send this event.
Note that the <internallink
id="SampledObjectAlloc">SampledObjectAlloc</internallink>
event is triggered on all Java object allocations, including those
caused by bytecode method execution, JNI method execution, and
directly by VM methods.
<p/> <p/>
Typical examples where this event might be sent: Typical examples where this event might be sent:
<ul> <ul>