27 #define SHARE_VM_UTILITIES_DECODER_HPP

    27 #define SHARE_VM_UTILITIES_DECODER_HPP

    28 

    28 

    29 #include "memory/allocation.hpp"

    29 #include "memory/allocation.hpp"

    30 #include "runtime/mutex.hpp"

    30 #include "runtime/mutex.hpp"

    31 #include "runtime/mutexLocker.hpp"

    31 #include "runtime/mutexLocker.hpp"

    32 

    33 

    33 class AbstractDecoder : public CHeapObj<mtInternal> {

    34 class AbstractDecoder : public CHeapObj<mtInternal> {

    34 public:

    35 public:

    35   virtual ~AbstractDecoder() {}

    36   virtual ~AbstractDecoder() {}

    36 

    37 

    39          not_available = -10,  // real decoder is not available

    40          not_available = -10,  // real decoder is not available

    40          no_error = 0,         // successfully decoded frames

    41          no_error = 0,         // successfully decoded frames

    41          out_of_memory,        // out of memory

    42          out_of_memory,        // out of memory

    42          file_invalid,         // invalid elf file

    43          file_invalid,         // invalid elf file

    43          file_not_found,       // could not found symbol file (on windows), such as jvm.pdb or jvm.map

    44          file_not_found,       // could not found symbol file (on windows), such as jvm.pdb or jvm.map

    45          helper_func_error,    // decoding functions not found (Windows only)

    45          helper_func_error,    // decoding functions not found (Windows only)

    46          helper_init_error     // SymInitialize failed (Windows only)

    46          helper_init_error     // SymInitialize failed (Windows only)

    47   };

    47   };

    48 

    48 

    49   // decode an pc address to corresponding function name and an offset from the beginning of

    49   // decode an pc address to corresponding function name and an offset from the beginning of

   115   static bool demangle(const char* symbol, char* buf, int buflen);

   115   static bool demangle(const char* symbol, char* buf, int buflen);

   116   static bool can_decode_C_frame_in_vm();

   116   static bool can_decode_C_frame_in_vm();

   117 

   117 

   118   // shutdown shared instance

   118   // shutdown shared instance

   119   static void shutdown();

   119   static void shutdown();

   120 protected:

   123 protected:

   121   // shared decoder instance, _shared_instance_lock is needed

   124   // shared decoder instance, _shared_instance_lock is needed

   122   static AbstractDecoder* get_shared_instance();

   125   static AbstractDecoder* get_shared_instance();

   123   // a private instance for error handler. Error handler can be

   126   // a private instance for error handler. Error handler can be

   124   // triggered almost everywhere, including signal handler, where

   127   // triggered almost everywhere, including signal handler, where