Mercurial > hg > truffle
view src/os/solaris/vm/os_share_solaris.hpp @ 3293:1f4413413144
7039089: G1: changeset for 7037276 broke heap verification, and related cleanups
Summary: In G1 heap verification, we no longer scan perm to G1-collected heap refs as part of process_strong_roots() but rather in a separate explicit oop iteration over the perm gen. This preserves the original perm card-marks. Added a new assertion in younger_refs_iterate() to catch a simple subcase where the user may have forgotten a prior save_marks() call, as happened in the case of G1's attempt to iterate perm to G1 refs when verifying the heap before exit. The assert was deliberately weakened for ParNew+CMS and will be fixed for that combination in a future CR. Also made some (non-G1) cleanups related to code and comments obsoleted by the migration of Symbols to the native heap.
Reviewed-by: iveresov, jmasa, tonyp
author | ysr |
---|---|
date | Tue, 26 Apr 2011 21:17:24 -0700 |
parents | f95d63e2154a |
children | f2110083203d |
line wrap: on
line source
/* * Copyright (c) 1999, 2010, 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 * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef OS_SOLARIS_VM_OS_SHARE_SOLARIS_HPP #define OS_SOLARIS_VM_OS_SHARE_SOLARIS_HPP // Defines the interfaces to Solaris operating systems that vary across platforms // This is a simple callback that just fetches a PC for an interrupted thread. // The thread need not be suspended and the fetched PC is just a hint. // Returned PC and nPC are not necessarily consecutive. // This one is currently used for profiling the VMThread ONLY! // Must be synchronous class GetThreadPC_Callback : public OSThread::Sync_Interrupt_Callback { private: ExtendedPC _addr; public: GetThreadPC_Callback(Monitor *sync) : OSThread::Sync_Interrupt_Callback(sync) { } ExtendedPC addr() const { return _addr; } void set_addr(ExtendedPC addr) { _addr = addr; } void execute(OSThread::InterruptArguments *args); }; // misc extern "C" { void signalHandler(int, siginfo_t*, void*); } void resolve_lwp_exit_calls(void); void handle_unexpected_exception(Thread* thread, int sig, siginfo_t* info, address pc, address adjusted_pc); #ifndef PRODUCT void continue_with_dump(void); #endif #if defined(__sparc) && defined(COMPILER2) // For Sun Studio compiler implementation is in file // src/os_cpu/solaris_sparc/vm/solaris_sparc.il // For gcc implementation is in file // src/os_cpu/solaris_sparc/vm/os_solaris_sparc.cpp extern "C" void _mark_fpu_nosave() ; #endif #define PROCFILE_LENGTH 128 #endif // OS_SOLARIS_VM_OS_SHARE_SOLARIS_HPP