Mercurial > hg > truffle
diff src/share/vm/runtime/os.hpp @ 656:6bdd6923ba16
6541756: Reduce executable C-heap
Summary: Add executable parameters to reserve_memory and commit_memory to reduce executable memory to only the Code Heap.
Reviewed-by: xlu, kvn, acorn
| author | coleenp |
|---|---|
| date | Wed, 25 Mar 2009 14:19:20 -0400 |
| parents | bd441136a5ce |
| children | 956304450e80 |
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--- a/src/share/vm/runtime/os.hpp Mon Mar 23 10:42:20 2009 -0400 +++ b/src/share/vm/runtime/os.hpp Wed Mar 25 14:19:20 2009 -0400 @@ -202,8 +202,10 @@ static char* attempt_reserve_memory_at(size_t bytes, char* addr); static void split_reserved_memory(char *base, size_t size, size_t split, bool realloc); - static bool commit_memory(char* addr, size_t bytes); - static bool commit_memory(char* addr, size_t size, size_t alignment_hint); + static bool commit_memory(char* addr, size_t bytes, + bool executable = false); + static bool commit_memory(char* addr, size_t size, size_t alignment_hint, + bool executable = false); static bool uncommit_memory(char* addr, size_t bytes); static bool release_memory(char* addr, size_t bytes); @@ -243,7 +245,8 @@ static char* non_memory_address_word(); // reserve, commit and pin the entire memory region - static char* reserve_memory_special(size_t size, char* addr = NULL); + static char* reserve_memory_special(size_t size, char* addr = NULL, + bool executable = false); static bool release_memory_special(char* addr, size_t bytes); static bool large_page_init(); static size_t large_page_size();