stan/jdk-24
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

6587322: dtrace probe object__alloc doesn't fire in some situations on amd64

Browse Source 
Fix misplaced probe point

Reviewed-by: rasbold, phh
This commit is contained in:
Neo Jia 2010-02-08 13:49:03 -05:00 committed by Keith McGuigan
parent 94ccfa4187
commit 7d7887d46c
1 changed files with 10 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
hotspot/src/cpu/x86/vm/templateTable_x86_64.cpp
View File

@ -3238,17 +3238,19 @@ void TemplateTable::_new() {
__ xorl(rcx, rcx); // use zero reg to clear memory (shorter code)
__ store_klass_gap(rax, rcx); // zero klass gap for compressed oops
__ store_klass(rax, rsi); // store klass last
{
SkipIfEqual skip(_masm, &DTraceAllocProbes, false);
// Trigger dtrace event for fastpath
__ push(atos); // save the return value
__ call_VM_leaf(
CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax);
__ pop(atos); // restore the return value
}
__ jmp(done);
}
{
SkipIfEqual skip(_masm, &DTraceAllocProbes, false);
// Trigger dtrace event for fastpath
__ push(atos); // save the return value
__ call_VM_leaf(
CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax);
__ pop(atos); // restore the return value
}
// slow case
__ bind(slow_case);