Mercurial > hg > truffle
annotate src/share/vm/runtime/frame.inline.hpp @ 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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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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parents:
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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 | |
605 | 25 // This file holds platform-independent bodies of inline functions for frames. |
0 | 26 |
27 // Note: The bcx usually contains the bcp; however during GC it contains the bci | |
28 // (changed by gc_prologue() and gc_epilogue()) to be methodOop position | |
29 // independent. These accessors make sure the correct value is returned | |
30 // by testing the range of the bcx value. bcp's are guaranteed to be above | |
31 // max_method_code_size, since methods are always allocated in OldSpace and | |
32 // Eden is allocated before OldSpace. | |
33 // | |
34 // The bcp is accessed sometimes during GC for ArgumentDescriptors; than | |
35 // the correct translation has to be performed (was bug). | |
36 | |
37 inline bool frame::is_bci(intptr_t bcx) { | |
38 #ifdef _LP64 | |
39 return ((uintptr_t) bcx) <= ((uintptr_t) max_method_code_size) ; | |
40 #else | |
41 return 0 <= bcx && bcx <= max_method_code_size; | |
42 #endif | |
43 } | |
44 | |
45 inline bool frame::is_entry_frame() const { | |
46 return StubRoutines::returns_to_call_stub(pc()); | |
47 } | |
48 | |
49 inline bool frame::is_first_frame() const { | |
50 return is_entry_frame() && entry_frame_is_first(); | |
51 } | |
52 | |
53 // here are the platform-dependent bodies: | |
54 | |
55 # include "incls/_frame_pd.inline.hpp.incl" |