src/share/vm/runtime/os.hpp

changeset 791
1ee8caae33af
parent 777
37f87013dfd8
parent 677
d95b224e9f17
child 912
24fda36852ce
     1.1 --- a/src/share/vm/runtime/os.hpp	Wed Aug 06 11:57:31 2008 -0400
     1.2 +++ b/src/share/vm/runtime/os.hpp	Thu Aug 21 23:36:31 2008 -0400
     1.3 @@ -1,5 +1,5 @@
     1.4  /*
     1.5 - * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.
     1.6 + * Copyright 1997-2008 Sun Microsystems, Inc.  All Rights Reserved.
     1.7   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.8   *
     1.9   * This code is free software; you can redistribute it and/or modify it
    1.10 @@ -205,7 +205,11 @@
    1.11    static bool   commit_memory(char* addr, size_t size, size_t alignment_hint);
    1.12    static bool   uncommit_memory(char* addr, size_t bytes);
    1.13    static bool   release_memory(char* addr, size_t bytes);
    1.14 -  static bool   protect_memory(char* addr, size_t bytes);
    1.15 +
    1.16 +  enum ProtType { MEM_PROT_NONE, MEM_PROT_READ, MEM_PROT_RW, MEM_PROT_RWX };
    1.17 +  static bool   protect_memory(char* addr, size_t bytes, ProtType prot,
    1.18 +                               bool is_committed = false);
    1.19 +
    1.20    static bool   guard_memory(char* addr, size_t bytes);
    1.21    static bool   unguard_memory(char* addr, size_t bytes);
    1.22    static char*  map_memory(int fd, const char* file_name, size_t file_offset,
    1.23 @@ -398,6 +402,10 @@
    1.24    static const char*    get_temp_directory();
    1.25    static const char*    get_current_directory(char *buf, int buflen);
    1.26  
    1.27 +  // Builds a platform-specific full library path given a ld path and lib name
    1.28 +  static void           dll_build_name(char* buffer, size_t size,
    1.29 +                                       const char* pathname, const char* fname);
    1.30 +
    1.31    // Symbol lookup, find nearest function name; basically it implements
    1.32    // dladdr() for all platforms. Name of the nearest function is copied
    1.33    // to buf. Distance from its base address is returned as offset.
    1.34 @@ -421,6 +429,9 @@
    1.35    // same architecture as Hotspot is running on
    1.36    static void* dll_load(const char *name, char *ebuf, int ebuflen);
    1.37  
    1.38 +  // lookup symbol in a shared library
    1.39 +  static void* dll_lookup(void* handle, const char* name);
    1.40 +
    1.41    // Print out system information; they are called by fatal error handler.
    1.42    // Output format may be different on different platforms.
    1.43    static void print_os_info(outputStream* st);

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