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comparison src/share/vm/runtime/os.hpp @ 477:24fda36852ce

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6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE Summary: Make reguard_stack change access to RW, not execute and use os::protect_memory with the new parameter when change needed to X. Reviewed-by: acorn, jcoomes
author coleenp
date Wed, 10 Dec 2008 15:14:29 -0800
parents 1ee8caae33af
children 773234c55e8c
comparison
equal deleted inserted replaced
473:3ad2b8576c4a 477:24fda36852ce
206 static bool uncommit_memory(char* addr, size_t bytes); 206 static bool uncommit_memory(char* addr, size_t bytes);
207 static bool release_memory(char* addr, size_t bytes); 207 static bool release_memory(char* addr, size_t bytes);
208 208
209 enum ProtType { MEM_PROT_NONE, MEM_PROT_READ, MEM_PROT_RW, MEM_PROT_RWX }; 209 enum ProtType { MEM_PROT_NONE, MEM_PROT_READ, MEM_PROT_RW, MEM_PROT_RWX };
210 static bool protect_memory(char* addr, size_t bytes, ProtType prot, 210 static bool protect_memory(char* addr, size_t bytes, ProtType prot,
211 bool is_committed = false); 211 bool is_committed = true);
212 212
213 static bool guard_memory(char* addr, size_t bytes); 213 static bool guard_memory(char* addr, size_t bytes);
214 static bool unguard_memory(char* addr, size_t bytes); 214 static bool unguard_memory(char* addr, size_t bytes);
215 static char* map_memory(int fd, const char* file_name, size_t file_offset, 215 static char* map_memory(int fd, const char* file_name, size_t file_offset,
216 char *addr, size_t bytes, bool read_only = false, 216 char *addr, size_t bytes, bool read_only = false,