Mercurial > hg > truffle
comparison src/share/vm/runtime/os.hpp @ 356:1ee8caae33af
Merge
author | tonyp |
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date | Thu, 21 Aug 2008 23:36:31 -0400 |
parents | 37f87013dfd8 d95b224e9f17 |
children | 24fda36852ce |
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355:0edda524b58c | 356:1ee8caae33af |
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1 /* | 1 /* |
2 * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. | 2 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | 4 * |
5 * This code is free software; you can redistribute it and/or modify it | 5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as | 6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
203 size_t split, bool realloc); | 203 size_t split, bool realloc); |
204 static bool commit_memory(char* addr, size_t bytes); | 204 static bool commit_memory(char* addr, size_t bytes); |
205 static bool commit_memory(char* addr, size_t size, size_t alignment_hint); | 205 static bool commit_memory(char* addr, size_t size, size_t alignment_hint); |
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 static bool protect_memory(char* addr, size_t bytes); | 208 |
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, | |
211 bool is_committed = false); | |
212 | |
209 static bool guard_memory(char* addr, size_t bytes); | 213 static bool guard_memory(char* addr, size_t bytes); |
210 static bool unguard_memory(char* addr, size_t bytes); | 214 static bool unguard_memory(char* addr, size_t bytes); |
211 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, |
212 char *addr, size_t bytes, bool read_only = false, | 216 char *addr, size_t bytes, bool read_only = false, |
213 bool allow_exec = false); | 217 bool allow_exec = false); |
396 static const char* dll_file_extension(); | 400 static const char* dll_file_extension(); |
397 | 401 |
398 static const char* get_temp_directory(); | 402 static const char* get_temp_directory(); |
399 static const char* get_current_directory(char *buf, int buflen); | 403 static const char* get_current_directory(char *buf, int buflen); |
400 | 404 |
405 // Builds a platform-specific full library path given a ld path and lib name | |
406 static void dll_build_name(char* buffer, size_t size, | |
407 const char* pathname, const char* fname); | |
408 | |
401 // Symbol lookup, find nearest function name; basically it implements | 409 // Symbol lookup, find nearest function name; basically it implements |
402 // dladdr() for all platforms. Name of the nearest function is copied | 410 // dladdr() for all platforms. Name of the nearest function is copied |
403 // to buf. Distance from its base address is returned as offset. | 411 // to buf. Distance from its base address is returned as offset. |
404 // If function name is not found, buf[0] is set to '\0' and offset is | 412 // If function name is not found, buf[0] is set to '\0' and offset is |
405 // set to -1. | 413 // set to -1. |
418 | 426 |
419 // Loads .dll/.so and | 427 // Loads .dll/.so and |
420 // in case of error it checks if .dll/.so was built for the | 428 // in case of error it checks if .dll/.so was built for the |
421 // same architecture as Hotspot is running on | 429 // same architecture as Hotspot is running on |
422 static void* dll_load(const char *name, char *ebuf, int ebuflen); | 430 static void* dll_load(const char *name, char *ebuf, int ebuflen); |
431 | |
432 // lookup symbol in a shared library | |
433 static void* dll_lookup(void* handle, const char* name); | |
423 | 434 |
424 // Print out system information; they are called by fatal error handler. | 435 // Print out system information; they are called by fatal error handler. |
425 // Output format may be different on different platforms. | 436 // Output format may be different on different platforms. |
426 static void print_os_info(outputStream* st); | 437 static void print_os_info(outputStream* st); |
427 static void print_cpu_info(outputStream* st); | 438 static void print_cpu_info(outputStream* st); |