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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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5
hotspot/agent/src/os/solaris/proc/saproc.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2002, 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
@ -510,7 +510,6 @@ wrapper_fill_cframe_list(void *cd, const prgregset_t regs, uint_t argc,
// mapped. This structure gets written to a file. It is not a class, so
// that the compilers don't add any compiler-private data to it.
// Refer to CompactingPermGenGen::n_regions in compactingPermGenGen.hpp
const int NUM_SHARED_MAPS = 4;
// Refer to FileMapInfo::_current_version in filemap.hpp
@ -531,7 +530,7 @@ struct FileMapHeader {
bool _read_only; // read only space?
bool _allow_exec; // executable code in space?
} _space[NUM_SHARED_MAPS]; // was _space[CompactingPermGenGen::n_regions];
} _space[NUM_SHARED_MAPS];
// Ignore the rest of the FileMapHeader. We don't need those fields here.
};