538   // max_frames: Limit number of traced frames.
539   //             <= 0 --> full trace
540   //             > 0  --> trace the #max_frames topmost frames
541   static void back_trace(outputStream* st, intptr_t* start_sp, intptr_t* top_pc,
542                          unsigned long flags, int max_frames = 0);
543 
544   enum {
545     // This enum value specifies the offset from the pc remembered by
546     // call instructions to the location where control returns to
547     // after a normal return. Most architectures remember the return
548     // location directly, i.e. the offset is zero. This is the case
549     // for z/Architecture, too.
550     //
551     // Normal return address is the instruction following the branch.
552     pc_return_offset         = 0,
553     metadata_words           = 0,
554     metadata_words_at_bottom = 0,
555     metadata_words_at_top    = 0,
556     frame_alignment          = 16,
557     // size, in words, of maximum shift in frame position due to alignment
558     align_wiggle             =  1


559   };
560 
561   static jint interpreter_frame_expression_stack_direction() { return -1; }
562 




563 #endif // CPU_S390_FRAME_S390_HPP

538   // max_frames: Limit number of traced frames.
539   //             <= 0 --> full trace
540   //             > 0  --> trace the #max_frames topmost frames
541   static void back_trace(outputStream* st, intptr_t* start_sp, intptr_t* top_pc,
542                          unsigned long flags, int max_frames = 0);
543 
544   enum {
545     // This enum value specifies the offset from the pc remembered by
546     // call instructions to the location where control returns to
547     // after a normal return. Most architectures remember the return
548     // location directly, i.e. the offset is zero. This is the case
549     // for z/Architecture, too.
550     //
551     // Normal return address is the instruction following the branch.
552     pc_return_offset         = 0,
553     metadata_words           = 0,
554     metadata_words_at_bottom = 0,
555     metadata_words_at_top    = 0,
556     frame_alignment          = 16,
557     // size, in words, of maximum shift in frame position due to alignment
558     align_wiggle             =  1,
559     // This is wrong and unimplemented
560     sender_sp_offset         =  0
561   };
562 
563   static jint interpreter_frame_expression_stack_direction() { return -1; }
564 
565   intptr_t* repair_sender_sp(intptr_t* sender_sp, intptr_t** saved_fp_addr) const;
566   static intptr_t* repair_sender_sp(nmethod* nm, intptr_t* sp, intptr_t** saved_fp_addr);
567   bool was_augmented_on_entry(int& real_size) const;
568 
569 #endif // CPU_S390_FRAME_S390_HPP