624   // OS/compiler may have different convention or provide different API to
 625   // walk C frames.
 626   //
 627   // We don't attempt to become a debugger, so we only follow frames if that
 628   // does not require a lookup in the unwind table, which is part of the binary
 629   // file but may be unsafe to read after a fatal error. So on x86, we can
 630   // only walk stack if %ebp is used as frame pointer; on ia64, it's not
 631   // possible to walk C stack without having the unwind table.
 632   static bool is_first_C_frame(frame *fr);
 633   static frame get_sender_for_C_frame(frame *fr);
 634 
 635   // return current frame. pc() and sp() are set to NULL on failure.
 636   static frame      current_frame();
 637 
 638   static void print_hex_dump(outputStream* st, address start, address end, int unitsize);
 639 
 640   // returns a string to describe the exception/signal;
 641   // returns NULL if exception_code is not an OS exception/signal.
 642   static const char* exception_name(int exception_code, char* buf, size_t buflen);
 643 



 644   // Returns native Java library, loads if necessary
 645   static void*    native_java_library();
 646 
 647   // Fills in path to jvm.dll/libjvm.so (used by the Disassembler)
 648   static void     jvm_path(char *buf, jint buflen);
 649 
 650   // Returns true if we are running in a headless jre.
 651   static bool     is_headless_jre();
 652 
 653   // JNI names
 654   static void     print_jni_name_prefix_on(outputStream* st, int args_size);
 655   static void     print_jni_name_suffix_on(outputStream* st, int args_size);
 656 
 657   // Init os specific system properties values
 658   static void init_system_properties_values();
 659 
 660   // IO operations, non-JVM_ version.
 661   static int stat(const char* path, struct stat* sbuf);
 662   static bool dir_is_empty(const char* path);
 663 

 624   // OS/compiler may have different convention or provide different API to
 625   // walk C frames.
 626   //
 627   // We don't attempt to become a debugger, so we only follow frames if that
 628   // does not require a lookup in the unwind table, which is part of the binary
 629   // file but may be unsafe to read after a fatal error. So on x86, we can
 630   // only walk stack if %ebp is used as frame pointer; on ia64, it's not
 631   // possible to walk C stack without having the unwind table.
 632   static bool is_first_C_frame(frame *fr);
 633   static frame get_sender_for_C_frame(frame *fr);
 634 
 635   // return current frame. pc() and sp() are set to NULL on failure.
 636   static frame      current_frame();
 637 
 638   static void print_hex_dump(outputStream* st, address start, address end, int unitsize);
 639 
 640   // returns a string to describe the exception/signal;
 641   // returns NULL if exception_code is not an OS exception/signal.
 642   static const char* exception_name(int exception_code, char* buf, size_t buflen);
 643 
 644   // Returns the signal number (e.g. 11) for a given signal name (SIGSEGV).
 645   static int get_signal_number(const char* signal_name);
 646 
 647   // Returns native Java library, loads if necessary
 648   static void*    native_java_library();
 649 
 650   // Fills in path to jvm.dll/libjvm.so (used by the Disassembler)
 651   static void     jvm_path(char *buf, jint buflen);
 652 
 653   // Returns true if we are running in a headless jre.
 654   static bool     is_headless_jre();
 655 
 656   // JNI names
 657   static void     print_jni_name_prefix_on(outputStream* st, int args_size);
 658   static void     print_jni_name_suffix_on(outputStream* st, int args_size);
 659 
 660   // Init os specific system properties values
 661   static void init_system_properties_values();
 662 
 663   // IO operations, non-JVM_ version.
 664   static int stat(const char* path, struct stat* sbuf);
 665   static bool dir_is_empty(const char* path);
 666