1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/cpu/sparc/vm/stubRoutines_sparc.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,70 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef CPU_SPARC_VM_STUBROUTINES_SPARC_HPP
1.29 +#define CPU_SPARC_VM_STUBROUTINES_SPARC_HPP
1.30 +
1.31 +// This file holds the platform specific parts of the StubRoutines
1.32 +// definition. See stubRoutines.hpp for a description on how to
1.33 +// extend it.
1.34 +
1.35 +
1.36 +// So unfortunately c2 will call with a pc from a frame object
1.37 +// (already adjusted) and a raw pc (unadjusted), so we need to check both.
1.38 +// It didn't use to be like this before adapter removal.
1.39 +static bool returns_to_call_stub(address return_pc) {
1.40 + return ((return_pc + frame::pc_return_offset) == _call_stub_return_address) ||
1.41 + (return_pc == _call_stub_return_address );
1.42 +}
1.43 +
1.44 +enum /* platform_dependent_constants */ {
1.45 + // %%%%%%%% May be able to shrink this a lot
1.46 + code_size1 = 20000, // simply increase if too small (assembler will crash if too small)
1.47 + code_size2 = 22000 // simply increase if too small (assembler will crash if too small)
1.48 +};
1.49 +
1.50 +class Sparc {
1.51 + friend class StubGenerator;
1.52 +
1.53 + private:
1.54 + static address _test_stop_entry;
1.55 + static address _stop_subroutine_entry;
1.56 + static address _flush_callers_register_windows_entry;
1.57 +
1.58 + static address _partial_subtype_check;
1.59 +
1.60 + public:
1.61 + // test assembler stop routine by setting registers
1.62 + static void (*test_stop_entry()) () { return CAST_TO_FN_PTR(void (*)(void), _test_stop_entry); }
1.63 +
1.64 + // a subroutine for debugging assembler code
1.65 + static address stop_subroutine_entry_address() { return (address)&_stop_subroutine_entry; }
1.66 +
1.67 + // flushes (all but current) register window
1.68 + static intptr_t* (*flush_callers_register_windows_func())() { return CAST_TO_FN_PTR(intptr_t* (*)(void), _flush_callers_register_windows_entry); }
1.69 +
1.70 + static address partial_subtype_check() { return _partial_subtype_check; }
1.71 +};
1.72 +
1.73 +#endif // CPU_SPARC_VM_STUBROUTINES_SPARC_HPP
