src/hotspot/share/compiler/disassembler.hpp

rev 54960 : 8213084: Rework and enhance Print[Opto]Assembly output
Reviewed-by: kvn, thartmann

*** 23,42 ****
   */
  
  #ifndef SHARE_COMPILER_DISASSEMBLER_HPP
  #define SHARE_COMPILER_DISASSEMBLER_HPP
  
  #include "asm/codeBuffer.hpp"
  #include "runtime/globals.hpp"
  #include "utilities/macros.hpp"
  
  class decode_env;
  
  // The disassembler prints out assembly code annotated
  // with Java specific information.
  
! class Disassembler {
    friend class decode_env;
   private:
    // this is the type of the dll entry point:
    typedef void* (*decode_func_virtual)(uintptr_t start_va, uintptr_t end_va,
                                 unsigned char* buffer, uintptr_t length,
--- 23,47 ----
   */
  
  #ifndef SHARE_COMPILER_DISASSEMBLER_HPP
  #define SHARE_COMPILER_DISASSEMBLER_HPP
  
+ #include "utilities/globalDefinitions.hpp"
+ 
+ #include "asm/assembler.hpp"
  #include "asm/codeBuffer.hpp"
+ #include "compiler/abstractDisassembler.hpp"
  #include "runtime/globals.hpp"
  #include "utilities/macros.hpp"
  
  class decode_env;
  
  // The disassembler prints out assembly code annotated
  // with Java specific information.
  
! // Disassembler inherits from AbstractDisassembler
! class Disassembler : public AbstractDisassembler {
    friend class decode_env;
   private:
    // this is the type of the dll entry point:
    typedef void* (*decode_func_virtual)(uintptr_t start_va, uintptr_t end_va,
                                 unsigned char* buffer, uintptr_t length,
*** 55,84 ****
                                 const char* options);
    // points to the library.
    static void*    _library;
    // bailout
    static bool     _tried_to_load_library;
    // points to the decode function.
    static decode_func_virtual _decode_instructions_virtual;
    static decode_func _decode_instructions;
!   // tries to load library and return whether it succedded.
!   static bool load_library();
  
    // Machine dependent stuff
  #include CPU_HEADER(disassembler)
  
   public:
!   static bool can_decode() {
!     ttyLocker tl;
!     return (_decode_instructions_virtual != NULL) ||
!            (_decode_instructions != NULL) ||
             load_library();
    }
!   static void decode(CodeBlob *cb,               outputStream* st = NULL);
!   static void decode(nmethod* nm,                outputStream* st = NULL);
!   static void decode(address begin, address end, outputStream* st = NULL,
!                      CodeStrings c = CodeStrings(), ptrdiff_t offset = 0);
    static void _hook(const char* file, int line, class MacroAssembler* masm);
  
    // This functions makes it easy to generate comments in the generated
    // interpreter code, by riding on the customary __ macro in the interpreter generator.
    // See templateTable_x86.cpp for an example.
--- 60,121 ----
                                 const char* options);
    // points to the library.
    static void*    _library;
    // bailout
    static bool     _tried_to_load_library;
+   static bool     _library_usable;
    // points to the decode function.
    static decode_func_virtual _decode_instructions_virtual;
    static decode_func _decode_instructions;
! 
!   // tries to load library and return whether it succeeded.
!   // Allow (diagnostic) output redirection.
!   // No output at all if stream is NULL. Can be overridden
!   // with -Verbose flag, in which case output goes to tty.
!   static bool load_library(outputStream* st = NULL);
! 
!   // Check if the two addresses are on the same page.
!   static bool is_same_page(address a1, address a2) {
!     return (((uintptr_t)a1 ^ (uintptr_t)a2) & (~0x0fffUL)) == 0L;
!   }
  
    // Machine dependent stuff
  #include CPU_HEADER(disassembler)
  
   public:
!   // We can always decode code blobs.
!   // Either we have a disassembler library available (successfully loaded)
!   // or we will resort to the abstract disassembler. This method informs
!   // about which decoding format is used.
!   // We can also enforce using the abstract disassembler.
!   static bool is_abstract() {
!     if (!_tried_to_load_library /* && !UseAbstractDisassembler */) {
        load_library();
      }
!     return ! _library_usable /* || UseAbstractDisassembler */;  // Not available until DecodeErrorFile is supported.
!   }
! 
!   // Check out if we are doing a live disassembly or a post-mortem
!   // disassembly where the binary data was loaded from a hs_err file.
!   static bool is_decode_error_file() {
! // Activate once post-mortem disassembly (from hs-err file) is available.
! #if 0
!     return DecodeErrorFile && (strlen(DecodeErrorFile) != 0);
! #else
!     return false;
! #endif
!   }
! 
!   // Directly disassemble code buffer.
!   static void decode(CodeBuffer* cb, address start, address end, outputStream* st = NULL);
!   // Directly disassemble code blob.
!   static void decode(CodeBlob *cb,               outputStream* st = NULL, CodeStrings c = CodeStrings());
!   // Directly disassemble nmethod.
!   static void decode(nmethod* nm,                outputStream* st = NULL, CodeStrings c = CodeStrings());
!   // Disassemble an arbitrary memory range.
!   static void decode(address start, address end, outputStream* st = NULL, CodeStrings c = CodeStrings() /* , ptrdiff_t offset */);
! 
    static void _hook(const char* file, int line, class MacroAssembler* masm);
  
    // This functions makes it easy to generate comments in the generated
    // interpreter code, by riding on the customary __ macro in the interpreter generator.
    // See templateTable_x86.cpp for an example.