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7004582: Add GetThisObject() function to JVMTI 1.2

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Add 'GetThisObject' function

Reviewed-by: never, coleenp
This commit is contained in:
Keith McGuigan 2010-12-09 15:04:26 -05:00
parent d344b51209
commit de27a1608c
9 changed files with 156 additions and 69 deletions
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12
hotspot/src/share/vm/code/nmethod.cpp
View file

@ -619,8 +619,8 @@ nmethod::nmethod(
OopMapSet* oop_maps )
: CodeBlob("native nmethod", code_buffer, sizeof(nmethod),
nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps),
_compiled_synchronized_native_basic_lock_owner_sp_offset(basic_lock_owner_sp_offset),
_compiled_synchronized_native_basic_lock_sp_offset(basic_lock_sp_offset)
_native_receiver_sp_offset(basic_lock_owner_sp_offset),
_native_basic_lock_sp_offset(basic_lock_sp_offset)
{
{
debug_only(No_Safepoint_Verifier nsv;)
@ -696,8 +696,8 @@ nmethod::nmethod(
int frame_size)
: CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod),
nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL),
_compiled_synchronized_native_basic_lock_owner_sp_offset(in_ByteSize(-1)),
_compiled_synchronized_native_basic_lock_sp_offset(in_ByteSize(-1))
_native_receiver_sp_offset(in_ByteSize(-1)),
_native_basic_lock_sp_offset(in_ByteSize(-1))
{
{
debug_only(No_Safepoint_Verifier nsv;)
@ -790,8 +790,8 @@ nmethod::nmethod(
)
: CodeBlob("nmethod", code_buffer, sizeof(nmethod),
nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps),
_compiled_synchronized_native_basic_lock_owner_sp_offset(in_ByteSize(-1)),
_compiled_synchronized_native_basic_lock_sp_offset(in_ByteSize(-1))
_native_receiver_sp_offset(in_ByteSize(-1)),
_native_basic_lock_sp_offset(in_ByteSize(-1))
{
assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR");
{

16
hotspot/src/share/vm/code/nmethod.hpp
View file

@ -210,7 +210,7 @@ class nmethod : public CodeBlob {
ExceptionCache *_exception_cache;
PcDescCache _pc_desc_cache;
// These are only used for compiled synchronized native methods to
// These are used for compiled synchronized native methods to
// locate the owner and stack slot for the BasicLock so that we can
// properly revoke the bias of the owner if necessary. They are
// needed because there is no debug information for compiled native
@ -220,8 +220,10 @@ class nmethod : public CodeBlob {
// sharing between platforms. Note that currently biased locking
// will never cause Class instances to be biased but this code
// handles the static synchronized case as well.
ByteSize _compiled_synchronized_native_basic_lock_owner_sp_offset;
ByteSize _compiled_synchronized_native_basic_lock_sp_offset;
// JVMTI's GetLocalInstance() also uses these offsets to find the receiver
// for non-static native wrapper frames.
ByteSize _native_receiver_sp_offset;
ByteSize _native_basic_lock_sp_offset;
friend class nmethodLocker;
@ -676,11 +678,11 @@ public:
bool is_patchable_at(address instr_address);
// UseBiasedLocking support
ByteSize compiled_synchronized_native_basic_lock_owner_sp_offset() {
return _compiled_synchronized_native_basic_lock_owner_sp_offset;
ByteSize native_receiver_sp_offset() {
return _native_receiver_sp_offset;
}
ByteSize compiled_synchronized_native_basic_lock_sp_offset() {
return _compiled_synchronized_native_basic_lock_sp_offset;
ByteSize native_basic_lock_sp_offset() {
return _native_basic_lock_sp_offset;
}
// support for code generation