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8004128: NPG: remove stackwalking in Threads::gc_prologue and gc_epilogue code

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Remove bcx and mdx handling.  We no longer have to convert bytecode pointers to indices for GC since Methods aren't moved.

Reviewed-by: mgerdin, kvn
This commit is contained in:
Coleen Phillimore 2014-07-17 15:45:46 -04:00
parent 79eab12bba
commit 3f0a945468
40 changed files with 132 additions and 336 deletions
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21
hotspot/src/share/vm/runtime/frame.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -241,8 +241,8 @@ class frame VALUE_OBJ_CLASS_SPEC {
private:
intptr_t** interpreter_frame_locals_addr() const;
intptr_t* interpreter_frame_bcx_addr() const;
intptr_t* interpreter_frame_mdx_addr() const;
intptr_t* interpreter_frame_bcp_addr() const;
intptr_t* interpreter_frame_mdp_addr() const;
public:
// Locals
@ -252,23 +252,13 @@ class frame VALUE_OBJ_CLASS_SPEC {
void interpreter_frame_set_locals(intptr_t* locs);
// byte code index/pointer (use these functions for unchecked frame access only!)
intptr_t interpreter_frame_bcx() const { return *interpreter_frame_bcx_addr(); }
void interpreter_frame_set_bcx(intptr_t bcx);
// byte code index
jint interpreter_frame_bci() const;
void interpreter_frame_set_bci(jint bci);
// byte code pointer
address interpreter_frame_bcp() const;
void interpreter_frame_set_bcp(address bcp);
// Unchecked access to the method data index/pointer.
// Only use this if you know what you are doing.
intptr_t interpreter_frame_mdx() const { return *interpreter_frame_mdx_addr(); }
void interpreter_frame_set_mdx(intptr_t mdx);
// method data pointer
address interpreter_frame_mdp() const;
void interpreter_frame_set_mdp(address dp);
@ -437,10 +427,6 @@ class frame VALUE_OBJ_CLASS_SPEC {
// RedefineClasses support for finding live interpreted methods on the stack
void metadata_do(void f(Metadata*));
void gc_prologue();
void gc_epilogue();
void pd_gc_epilog();
# ifdef ENABLE_ZAP_DEAD_LOCALS
private:
class CheckValueClosure: public OopClosure {
@ -477,7 +463,6 @@ class frame VALUE_OBJ_CLASS_SPEC {
// Verification
void verify(const RegisterMap* map);
static bool verify_return_pc(address x);
static bool is_bci(intptr_t bcx);
// Usage:
// assert(frame::verify_return_pc(return_address), "must be a return pc");