Mercurial > hg > truffle
annotate src/os_cpu/solaris_x86/vm/assembler_solaris_x86_32.cpp @ 210:05712c37c828
6676016: ParallelOldGC leaks memory
Summary: ensure that GCTask threads release resource and handle memory
Reviewed-by: jmasa, chrisphi
author | jcoomes |
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date | Wed, 18 Jun 2008 18:36:47 -0700 |
parents | 7793bd37a336 |
children | d1605aabd0a1 |
rev | line source |
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0 | 1 /* |
2 * Copyright 1999-2003 Sun Microsystems, Inc. All Rights Reserved. | |
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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_assembler_solaris_x86_32.cpp.incl" | |
27 | |
28 | |
29 void MacroAssembler::int3() { | |
30 pushl(rax); | |
31 pushl(rdx); | |
32 pushl(rcx); | |
33 call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint))); | |
34 popl(rcx); | |
35 popl(rdx); | |
36 popl(rax); | |
37 } | |
38 | |
39 void MacroAssembler::get_thread(Register thread) { | |
40 | |
41 // Try to emit a Solaris-specific fast TSD/TLS accessor. | |
42 ThreadLocalStorage::pd_tlsAccessMode tlsMode = ThreadLocalStorage::pd_getTlsAccessMode () ; | |
43 if (tlsMode == ThreadLocalStorage::pd_tlsAccessIndirect) { // T1 | |
44 // Use thread as a temporary: mov r, gs:[0]; mov r, [r+tlsOffset] | |
45 emit_byte (Assembler::GS_segment) ; | |
46 // ExternalAddress doesn't work because it can't take NULL | |
47 AddressLiteral null(0, relocInfo::none); | |
48 movptr (thread, null); | |
49 movl (thread, Address(thread, ThreadLocalStorage::pd_getTlsOffset())) ; | |
50 return ; | |
51 } else | |
52 if (tlsMode == ThreadLocalStorage::pd_tlsAccessDirect) { // T2 | |
53 // mov r, gs:[tlsOffset] | |
54 emit_byte (Assembler::GS_segment) ; | |
55 AddressLiteral tls((address)ThreadLocalStorage::pd_getTlsOffset(), relocInfo::none); | |
56 movptr (thread, tls); | |
57 return ; | |
58 } | |
59 | |
60 // slow call to of thr_getspecific | |
61 // int thr_getspecific(thread_key_t key, void **value); | |
62 // Consider using pthread_getspecific instead. | |
63 | |
64 pushl(0); // allocate space for return value | |
65 if (thread != rax) pushl(rax); // save rax, if caller still wants it | |
66 pushl(rcx); // save caller save | |
67 pushl(rdx); // save caller save | |
68 if (thread != rax) { | |
69 leal(thread, Address(rsp, 3 * sizeof(int))); // address of return value | |
70 } else { | |
71 leal(thread, Address(rsp, 2 * sizeof(int))); // address of return value | |
72 } | |
73 pushl(thread); // and pass the address | |
74 pushl(ThreadLocalStorage::thread_index()); // the key | |
75 call(RuntimeAddress(CAST_FROM_FN_PTR(address, thr_getspecific))); | |
76 increment(rsp, 2 * wordSize); | |
77 popl(rdx); | |
78 popl(rcx); | |
79 if (thread != rax) popl(rax); | |
80 popl(thread); | |
81 } | |
82 | |
168
7793bd37a336
6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents:
0
diff
changeset
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83 bool MacroAssembler::needs_explicit_null_check(intptr_t offset) { |
0 | 84 // Identical to Sparc/Solaris code |
85 bool offset_in_first_page = 0 <= offset && offset < os::vm_page_size(); | |
86 return !offset_in_first_page; | |
87 } |