Mercurial > hg > truffle
annotate src/share/vm/c1/c1_Defs.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 |
|---|---|
| date | Wed, 18 Aug 2010 10:59:06 -0700 |
| parents | c18cbe5936b8 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2000, 2005, Oracle and/or its affiliates. All rights reserved. |
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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 | |
| 25 // set frame size and return address offset to these values in blobs | |
| 26 // (if the compiled frame uses ebp as link pointer on IA; otherwise, | |
| 27 // the frame size must be fixed) | |
| 28 enum { | |
| 29 no_frame_size = -1 | |
| 30 }; | |
| 31 | |
| 32 | |
| 33 # include "incls/_c1_Defs_pd.hpp.incl" | |
| 34 | |
| 35 // native word offsets from memory address | |
| 36 enum { | |
| 37 lo_word_offset_in_bytes = pd_lo_word_offset_in_bytes, | |
| 38 hi_word_offset_in_bytes = pd_hi_word_offset_in_bytes | |
| 39 }; | |
| 40 | |
| 41 | |
| 42 // the processor may require explicit rounding operations to implement the strictFP mode | |
| 43 enum { | |
| 44 strict_fp_requires_explicit_rounding = pd_strict_fp_requires_explicit_rounding | |
| 45 }; | |
| 46 | |
| 47 | |
| 48 // for debug info: a float value in a register may be saved in double precision by runtime stubs | |
| 49 enum { | |
| 50 float_saved_as_double = pd_float_saved_as_double | |
| 51 }; |