Mercurial > hg > graal-jvmci-8

comparison src/share/vm/runtime/os.hpp @ 22973:340ca8812af9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8067469: G1 ignores AlwaysPreTouch Summary: Factor out pretouch code of the various virtual space management classes and use them everywhere including in G1. Reviewed-by: stefank, ehelin, dholmes
author tschatzl
date Thu, 18 Dec 2014 09:37:02 +0100
parents 8461d0b03127
children c2ce24504334
comparison
equal deleted inserted replaced
22972:41a855ff6305 22973:340ca8812af9
316 static void commit_memory_or_exit(char* addr, size_t size, 316 static void commit_memory_or_exit(char* addr, size_t size,
317 size_t alignment_hint, 317 size_t alignment_hint,
318 bool executable, const char* mesg); 318 bool executable, const char* mesg);
319 static bool uncommit_memory(char* addr, size_t bytes); 319 static bool uncommit_memory(char* addr, size_t bytes);
320 static bool release_memory(char* addr, size_t bytes); 320 static bool release_memory(char* addr, size_t bytes);
321
322 // Touch memory pages that cover the memory range from start to end (exclusive)
323 // to make the OS back the memory range with actual memory.
324 // Current implementation may not touch the last page if unaligned addresses
325 // are passed.
326 static void pretouch_memory(char* start, char* end);
321 327
322 enum ProtType { MEM_PROT_NONE, MEM_PROT_READ, MEM_PROT_RW, MEM_PROT_RWX }; 328 enum ProtType { MEM_PROT_NONE, MEM_PROT_READ, MEM_PROT_RW, MEM_PROT_RWX };
323 static bool protect_memory(char* addr, size_t bytes, ProtType prot, 329 static bool protect_memory(char* addr, size_t bytes, ProtType prot,
324 bool is_committed = true); 330 bool is_committed = true);
325 331