Mercurial > hg > truffle
annotate src/share/vm/runtime/threadLocalStorage.cpp @ 1721:413ad0331a0c
6977924: Changes for 6975078 produce build error with certain gcc versions
Summary: The changes introduced for 6975078 assign badHeapOopVal to the _allocation field in the ResourceObj class. In 32 bit linux builds with certain versions of gcc this assignment will be flagged as an error while compiling allocation.cpp. In 32 bit builds the constant value badHeapOopVal (which is cast to an intptr_t) is negative. The _allocation field is typed as an unsigned intptr_t and gcc catches this as an error.
Reviewed-by: jcoomes, ysr, phh
author | johnc |
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date | Wed, 18 Aug 2010 10:59:06 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_threadLocalStorage.cpp.incl" | |
27 | |
28 // static member initialization | |
29 int ThreadLocalStorage::_thread_index = -1; | |
30 | |
31 Thread* ThreadLocalStorage::get_thread_slow() { | |
32 return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index()); | |
33 } | |
34 | |
35 void ThreadLocalStorage::set_thread(Thread* thread) { | |
36 pd_set_thread(thread); | |
37 | |
38 // The following ensure that any optimization tricks we have tried | |
39 // did not backfire on us: | |
40 guarantee(get_thread() == thread, "must be the same thread, quickly"); | |
41 guarantee(get_thread_slow() == thread, "must be the same thread, slowly"); | |
42 } | |
43 | |
44 void ThreadLocalStorage::init() { | |
242 | 45 assert(!is_initialized(), |
46 "More than one attempt to initialize threadLocalStorage"); | |
0 | 47 pd_init(); |
48 set_thread_index(os::allocate_thread_local_storage()); | |
49 generate_code_for_get_thread(); | |
50 } | |
242 | 51 |
52 bool ThreadLocalStorage::is_initialized() { | |
53 return (thread_index() != -1); | |
54 } |