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comparison src/share/vm/runtime/os.hpp @ 6275:957c266d8bc5

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Merge with http://hg.openjdk.java.net/hsx/hsx24/hotspot/
author Doug Simon <doug.simon@oracle.com>
date Tue, 21 Aug 2012 10:39:19 +0200
parents 897b7d18bebc 65906dc96aa1
children e522a00b91aa
comparison
equal deleted inserted replaced
5891:fd8832ae511d 6275:957c266d8bc5
97 static void init_page_sizes(size_t default_page_size) { 97 static void init_page_sizes(size_t default_page_size) {
98 _page_sizes[0] = default_page_size; 98 _page_sizes[0] = default_page_size;
99 _page_sizes[1] = 0; // sentinel 99 _page_sizes[1] = 0; // sentinel
100 } 100 }
101 101
102 static char* pd_reserve_memory(size_t bytes, char* addr = 0,
103 size_t alignment_hint = 0);
104 static char* pd_attempt_reserve_memory_at(size_t bytes, char* addr);
105 static void pd_split_reserved_memory(char *base, size_t size,
106 size_t split, bool realloc);
107 static bool pd_commit_memory(char* addr, size_t bytes, bool executable = false);
108 static bool pd_commit_memory(char* addr, size_t size, size_t alignment_hint,
109 bool executable = false);
110 static bool pd_uncommit_memory(char* addr, size_t bytes);
111 static bool pd_release_memory(char* addr, size_t bytes);
112
113 static char* pd_map_memory(int fd, const char* file_name, size_t file_offset,
114 char *addr, size_t bytes, bool read_only = false,
115 bool allow_exec = false);
116 static char* pd_remap_memory(int fd, const char* file_name, size_t file_offset,
117 char *addr, size_t bytes, bool read_only,
118 bool allow_exec);
119 static bool pd_unmap_memory(char *addr, size_t bytes);
120 static void pd_free_memory(char *addr, size_t bytes, size_t alignment_hint);
121 static void pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint);
122
123
102 public: 124 public:
103 static void init(void); // Called before command line parsing 125 static void init(void); // Called before command line parsing
104 static jint init_2(void); // Called after command line parsing 126 static jint init_2(void); // Called after command line parsing
105 static void init_globals(void) { // Called from init_globals() in init.cpp 127 static void init_globals(void) { // Called from init_globals() in init.cpp
106 init_globals_ext(); 128 init_globals_ext();
234 static char* reserve_memory(size_t bytes, char* addr = 0, 256 static char* reserve_memory(size_t bytes, char* addr = 0,
235 size_t alignment_hint = 0); 257 size_t alignment_hint = 0);
236 static char* attempt_reserve_memory_at(size_t bytes, char* addr); 258 static char* attempt_reserve_memory_at(size_t bytes, char* addr);
237 static void split_reserved_memory(char *base, size_t size, 259 static void split_reserved_memory(char *base, size_t size,
238 size_t split, bool realloc); 260 size_t split, bool realloc);
239 static bool commit_memory(char* addr, size_t bytes, 261 static bool commit_memory(char* addr, size_t bytes, bool executable = false);
240 bool executable = false);
241 static bool commit_memory(char* addr, size_t size, size_t alignment_hint, 262 static bool commit_memory(char* addr, size_t size, size_t alignment_hint,
242 bool executable = false); 263 bool executable = false);
243 static bool uncommit_memory(char* addr, size_t bytes); 264 static bool uncommit_memory(char* addr, size_t bytes);
244 static bool release_memory(char* addr, size_t bytes); 265 static bool release_memory(char* addr, size_t bytes);
245 266
248 bool is_committed = true); 269 bool is_committed = true);
249 270
250 static bool guard_memory(char* addr, size_t bytes); 271 static bool guard_memory(char* addr, size_t bytes);
251 static bool unguard_memory(char* addr, size_t bytes); 272 static bool unguard_memory(char* addr, size_t bytes);
252 static bool create_stack_guard_pages(char* addr, size_t bytes); 273 static bool create_stack_guard_pages(char* addr, size_t bytes);
274 static bool pd_create_stack_guard_pages(char* addr, size_t bytes);
253 static bool remove_stack_guard_pages(char* addr, size_t bytes); 275 static bool remove_stack_guard_pages(char* addr, size_t bytes);
254 276
255 static char* map_memory(int fd, const char* file_name, size_t file_offset, 277 static char* map_memory(int fd, const char* file_name, size_t file_offset,
256 char *addr, size_t bytes, bool read_only = false, 278 char *addr, size_t bytes, bool read_only = false,
257 bool allow_exec = false); 279 bool allow_exec = false);
402 424
403 static address current_stack_pointer(); 425 static address current_stack_pointer();
404 static address current_stack_base(); 426 static address current_stack_base();
405 static size_t current_stack_size(); 427 static size_t current_stack_size();
406 428
429 static void verify_stack_alignment() PRODUCT_RETURN;
430
407 static int message_box(const char* title, const char* message); 431 static int message_box(const char* title, const char* message);
408 static char* do_you_want_to_debug(const char* message); 432 static char* do_you_want_to_debug(const char* message);
409 433
410 // run cmd in a separate process and return its exit code; or -1 on failures 434 // run cmd in a separate process and return its exit code; or -1 on failures
411 static int fork_and_exec(char *cmd); 435 static int fork_and_exec(char *cmd);
488 static void dll_unload(void *lib); 512 static void dll_unload(void *lib);
489 513
490 // Print out system information; they are called by fatal error handler. 514 // Print out system information; they are called by fatal error handler.
491 // Output format may be different on different platforms. 515 // Output format may be different on different platforms.
492 static void print_os_info(outputStream* st); 516 static void print_os_info(outputStream* st);
517 static void print_os_info_brief(outputStream* st);
493 static void print_cpu_info(outputStream* st); 518 static void print_cpu_info(outputStream* st);
494 static void pd_print_cpu_info(outputStream* st); 519 static void pd_print_cpu_info(outputStream* st);
495 static void print_memory_info(outputStream* st); 520 static void print_memory_info(outputStream* st);
496 static void print_dll_info(outputStream* st); 521 static void print_dll_info(outputStream* st);
497 static void print_environment_variables(outputStream* st, const char** env_list, char* buffer, int len); 522 static void print_environment_variables(outputStream* st, const char** env_list, char* buffer, int len);
568 static int allocate_thread_local_storage(); 593 static int allocate_thread_local_storage();
569 static void thread_local_storage_at_put(int index, void* value); 594 static void thread_local_storage_at_put(int index, void* value);
570 static void* thread_local_storage_at(int index); 595 static void* thread_local_storage_at(int index);
571 static void free_thread_local_storage(int index); 596 static void free_thread_local_storage(int index);
572 597
598 // Stack walk
599 static address get_caller_pc(int n = 0);
600
573 // General allocation (must be MT-safe) 601 // General allocation (must be MT-safe)
574 static void* malloc (size_t size); 602 static void* malloc (size_t size, MEMFLAGS flags, address caller_pc = 0);
575 static void* realloc (void *memblock, size_t size); 603 static void* realloc (void *memblock, size_t size, MEMFLAGS flags, address caller_pc = 0);
576 static void free (void *memblock); 604 static void free (void *memblock, MEMFLAGS flags = mtNone);
577 static bool check_heap(bool force = false); // verify C heap integrity 605 static bool check_heap(bool force = false); // verify C heap integrity
578 static char* strdup(const char *); // Like strdup 606 static char* strdup(const char *, MEMFLAGS flags = mtInternal); // Like strdup
579 607
580 #ifndef PRODUCT 608 #ifndef PRODUCT
581 static julong num_mallocs; // # of calls to malloc/realloc 609 static julong num_mallocs; // # of calls to malloc/realloc
582 static julong alloc_bytes; // # of bytes allocated 610 static julong alloc_bytes; // # of bytes allocated
583 static julong num_frees; // # of calls to free 611 static julong num_frees; // # of calls to free
635 static void os_exception_wrapper(java_call_t f, JavaValue* value, methodHandle* method, nmethod* nm, JavaCallArguments* args, Thread* thread); 663 static void os_exception_wrapper(java_call_t f, JavaValue* value, methodHandle* method, nmethod* nm, JavaCallArguments* args, Thread* thread);
636 664
637 // On Windows this will create an actual minidump, on Linux/Solaris it will simply check core dump limits 665 // On Windows this will create an actual minidump, on Linux/Solaris it will simply check core dump limits
638 static void check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize); 666 static void check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize);
639 667
668 // Get the default path to the core file
669 // Returns the length of the string
670 static int get_core_path(char* buffer, size_t bufferSize);
671
640 // JVMTI & JVM monitoring and management support 672 // JVMTI & JVM monitoring and management support
641 // The thread_cpu_time() and current_thread_cpu_time() are only 673 // The thread_cpu_time() and current_thread_cpu_time() are only
642 // supported if is_thread_cpu_time_supported() returns true. 674 // supported if is_thread_cpu_time_supported() returns true.
643 // They are not supported on Solaris T1. 675 // They are not supported on Solaris T1.
644 676
681 public: 713 public:
682 714
683 // Platform dependent stuff 715 // Platform dependent stuff
684 #ifdef TARGET_OS_FAMILY_linux 716 #ifdef TARGET_OS_FAMILY_linux
685 # include "os_linux.hpp" 717 # include "os_linux.hpp"
718 # include "os_posix.hpp"
686 #endif 719 #endif
687 #ifdef TARGET_OS_FAMILY_solaris 720 #ifdef TARGET_OS_FAMILY_solaris
688 # include "os_solaris.hpp" 721 # include "os_solaris.hpp"
722 # include "os_posix.hpp"
689 #endif 723 #endif
690 #ifdef TARGET_OS_FAMILY_windows 724 #ifdef TARGET_OS_FAMILY_windows
691 # include "os_windows.hpp" 725 # include "os_windows.hpp"
692 #endif 726 #endif
693 #ifdef TARGET_OS_FAMILY_bsd 727 #ifdef TARGET_OS_FAMILY_bsd
728 # include "os_posix.hpp"
694 # include "os_bsd.hpp" 729 # include "os_bsd.hpp"
695 #endif 730 #endif
696 #ifdef TARGET_OS_ARCH_linux_x86 731 #ifdef TARGET_OS_ARCH_linux_x86
697 # include "os_linux_x86.hpp" 732 # include "os_linux_x86.hpp"
698 #endif 733 #endif