Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/registerMap_sparc.hpp @ 2230:55cc33cf55bc
7018257: jmm_DumpThreads allocates into permgen
Summary: Don't allocate in permgen
Reviewed-by: ysr, sla
author | stefank |
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date | Fri, 11 Feb 2011 14:15:16 +0100 |
parents | f95d63e2154a |
children | f7d55ea6ee56 |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef CPU_SPARC_VM_REGISTERMAP_SPARC_HPP |
26 #define CPU_SPARC_VM_REGISTERMAP_SPARC_HPP | |
27 | |
0 | 28 // machine-dependent implemention for register maps |
29 friend class frame; | |
30 | |
31 private: | |
32 intptr_t* _window; // register window save area (for L and I regs) | |
33 intptr_t* _younger_window; // previous save area (for O regs, if needed) | |
34 | |
35 address pd_location(VMReg reg) const; | |
36 void pd_clear(); | |
37 void pd_initialize_from(const RegisterMap* map) { | |
38 _window = map->_window; | |
39 _younger_window = map->_younger_window; | |
40 _location_valid[0] = 0; // avoid the shift_individual_registers game | |
41 } | |
42 void pd_initialize() { | |
43 _window = NULL; | |
44 _younger_window = NULL; | |
45 _location_valid[0] = 0; // avoid the shift_individual_registers game | |
46 } | |
47 void shift_window(intptr_t* sp, intptr_t* younger_sp) { | |
48 _window = sp; | |
49 _younger_window = younger_sp; | |
50 // Throw away locations for %i, %o, and %l registers: | |
51 // But do not throw away %g register locs. | |
52 if (_location_valid[0] != 0) shift_individual_registers(); | |
53 } | |
54 void shift_individual_registers(); | |
55 // When popping out of compiled frames, we make all IRegs disappear. | |
56 void make_integer_regs_unsaved() { _location_valid[0] = 0; } | |
1972 | 57 |
58 #endif // CPU_SPARC_VM_REGISTERMAP_SPARC_HPP |