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8005849: JEP 167: Event-Based JVM Tracing

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Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com>
Co-authored-by: Bengt Rutisson <bengt.rutisson@oracle.com>
Co-authored-by: Calvin Cheung <calvin.cheung@oracle.com>
Co-authored-by: Erik Gahlin <erik.gahlin@oracle.com>
Co-authored-by: Erik Helin <erik.helin@oracle.com>
Co-authored-by: Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>
Co-authored-by: Keith McGuigan <keith.mcguigan@oracle.com>
Co-authored-by: Mattias Tobiasson <mattias.tobiasson@oracle.com>
Co-authored-by: Markus Gronlund <markus.gronlund@oracle.com>
Co-authored-by: Mikael Auno <mikael.auno@oracle.com>
Co-authored-by: Nils Eliasson <nils.eliasson@oracle.com>
Co-authored-by: Nils Loodin <nils.loodin@oracle.com>
Co-authored-by: Rickard Backman <rickard.backman@oracle.com>
Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
Reviewed-by: acorn, coleenp, sla
This commit is contained in:
Staffan Larsen 2013-06-10 11:30:51 +02:00
parent 6b2c468c35
commit 718f3252f6
195 changed files with 7628 additions and 1484 deletions
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14
hotspot/src/cpu/sparc/vm/frame_sparc.cpp
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@ -252,6 +252,16 @@ bool frame::safe_for_sender(JavaThread *thread) {
return false;
}
// Could be a zombie method
if (sender_blob->is_zombie() || sender_blob->is_unloaded()) {
return false;
}
// Could be a zombie method
if (sender_blob->is_zombie() || sender_blob->is_unloaded()) {
return false;
}
// It should be safe to construct the sender though it might not be valid
frame sender(_SENDER_SP, younger_sp, adjusted_stack);
@ -294,10 +304,10 @@ bool frame::safe_for_sender(JavaThread *thread) {
return jcw_safe;
}
// If the frame size is 0 something is bad because every nmethod has a non-zero frame size
// If the frame size is 0 something (or less) is bad because every nmethod has a non-zero frame size
// because you must allocate window space
if (sender_blob->frame_size() == 0) {
if (sender_blob->frame_size() <= 0) {
assert(!sender_blob->is_nmethod(), "should count return address at least");
return false;
}