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6964458: Reimplement class meta-data storage to use native memory

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Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes

Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com>
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
This commit is contained in:
Jon Masamitsu 2012-09-01 13:25:18 -04:00 • committed by Coleen Phillimore
parent 36eee7c8c8
commit 5c58d27aac
853 changed files with 26124 additions and 82956 deletions
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14
hotspot/src/cpu/sparc/vm/nativeInst_sparc.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2012, 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
@ -246,7 +246,7 @@ class NativeInstruction VALUE_OBJ_CLASS_SPEC {
assert(is_op2(*(unsigned int *)pc, Assembler::sethi_op2), "must be sethi");
intptr_t hi = (intptr_t)gethi( (unsigned int *)pc );
intptr_t lo = (intptr_t)get_simm13(arith_insn);
assert((unsigned)lo < (1 << 10), "offset field of set_oop must be 10 bits");
assert((unsigned)lo < (1 << 10), "offset field of set_metadata must be 10 bits");
return hi | lo;
}
@ -261,7 +261,7 @@ class NativeInstruction VALUE_OBJ_CLASS_SPEC {
assert(is_op2(sethi_insn, Assembler::sethi_op2), "must be sethi");
int hi = Assembler::inv_hi22(sethi_insn);
int lo = get_simm13(arith_insn);
assert((unsigned)lo < (1 << 10), "offset field of set_oop must be 10 bits");
assert((unsigned)lo < (1 << 10), "offset field of set_metadata must be 10 bits");
return hi | lo;
}
@ -508,9 +508,9 @@ class NativeFarCall: public NativeInstruction {
#endif // _LP64
// An interface for accessing/manipulating native set_oop imm, reg instructions.
// An interface for accessing/manipulating native set_metadata imm, reg instructions.
// (used to manipulate inlined data references, etc.)
// set_oop imm, reg
// set_metadata imm, reg
// == sethi %hi22(imm), reg ; add reg, %lo10(imm), reg
class NativeMovConstReg;
inline NativeMovConstReg* nativeMovConstReg_at(address address);
@ -564,9 +564,9 @@ class NativeMovConstReg: public NativeInstruction {
};
// An interface for accessing/manipulating native set_oop imm, reg instructions.
// An interface for accessing/manipulating native set_metadata imm, reg instructions.
// (used to manipulate inlined data references, etc.)
// set_oop imm, reg
// set_metadata imm, reg
// == sethi %hi22(imm), reg; nop; add reg, %lo10(imm), reg
//
// Note that it is identical to NativeMovConstReg with the exception of a nop between the