Mercurial > hg > truffle
diff src/share/vm/utilities/globalDefinitions.hpp @ 9088:89e4d67fdd2a
Merge
author | Gilles Duboscq <duboscq@ssw.jku.at> |
---|---|
date | Fri, 12 Apr 2013 14:05:42 +0200 |
parents | 3ac7d10a6572 7a5aec879506 |
children | 836a62f43af9 |
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--- a/src/share/vm/utilities/globalDefinitions.hpp Fri Apr 12 11:24:56 2013 +0200 +++ b/src/share/vm/utilities/globalDefinitions.hpp Fri Apr 12 14:05:42 2013 +0200 @@ -419,6 +419,24 @@ return align_size_up(offset, HeapWordsPerLong); } +// Clamp an address to be within a specific page +// 1. If addr is on the page it is returned as is +// 2. If addr is above the page_address the start of the *next* page will be returned +// 3. Otherwise, if addr is below the page_address the start of the page will be returned +inline address clamp_address_in_page(address addr, address page_address, intptr_t page_size) { + if (align_size_down(intptr_t(addr), page_size) == align_size_down(intptr_t(page_address), page_size)) { + // address is in the specified page, just return it as is + return addr; + } else if (addr > page_address) { + // address is above specified page, return start of next page + return (address)align_size_down(intptr_t(page_address), page_size) + page_size; + } else { + // address is below specified page, return start of page + return (address)align_size_down(intptr_t(page_address), page_size); + } +} + + // The expected size in bytes of a cache line, used to pad data structures. #define DEFAULT_CACHE_LINE_SIZE 64 @@ -827,6 +845,10 @@ return comp_level == CompLevel_highest_tier; } +inline bool is_compile(int comp_level) { + return is_c1_compile(comp_level) || is_c2_compile(comp_level); +} + //---------------------------------------------------------------------------------------------------- // 'Forward' declarations of frequently used classes // (in order to reduce interface dependencies & reduce @@ -1296,4 +1318,15 @@ return *(void**)addr; } + +#ifndef PRODUCT + +// For unit testing only +class GlobalDefinitions { +public: + static void test_globals(); +}; + +#endif // PRODUCT + #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_HPP