496 intptr_t* younger_sp = sp();
497 intptr_t* sp = sender_sp();
498
499 // Note: The version of this operation on any platform with callee-save
500 // registers must update the register map (if not null).
501 // In order to do this correctly, the various subtypes of
502 // of frame (interpreted, compiled, glue, native),
503 // must be distinguished. There is no need on SPARC for
504 // such distinctions, because all callee-save registers are
505 // preserved for all frames via SPARC-specific mechanisms.
506 //
507 // *** HOWEVER, *** if and when we make any floating-point
508 // registers callee-saved, then we will have to copy over
509 // the RegisterMap update logic from the Intel code.
510
511 // The constructor of the sender must know whether this frame is interpreted so it can set the
512 // sender's _sp_adjustment_by_callee field. An osr adapter frame was originally
513 // interpreted but its pc is in the code cache (for c1 -> osr_frame_return_id stub), so it must be
514 // explicitly recognized.
515
516 bool frame_is_interpreted = is_interpreted_frame();
517 if (frame_is_interpreted) {
518 map->make_integer_regs_unsaved();
519 map->shift_window(sp, younger_sp);
520 } else if (_cb != NULL) {
521 // Update the locations of implicitly saved registers to be their
522 // addresses in the register save area.
523 // For %o registers, the addresses of %i registers in the next younger
524 // frame are used.
525 map->shift_window(sp, younger_sp);
526 if (map->update_map()) {
527 // Tell GC to use argument oopmaps for some runtime stubs that need it.
528 // For C1, the runtime stub might not have oop maps, so set this flag
529 // outside of update_register_map.
530 map->set_include_argument_oops(_cb->caller_must_gc_arguments(map->thread()));
531 if (_cb->oop_maps() != NULL) {
532 OopMapSet::update_register_map(this, map);
533 }
534 }
535 }
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496 intptr_t* younger_sp = sp();
497 intptr_t* sp = sender_sp();
498
499 // Note: The version of this operation on any platform with callee-save
500 // registers must update the register map (if not null).
501 // In order to do this correctly, the various subtypes of
502 // of frame (interpreted, compiled, glue, native),
503 // must be distinguished. There is no need on SPARC for
504 // such distinctions, because all callee-save registers are
505 // preserved for all frames via SPARC-specific mechanisms.
506 //
507 // *** HOWEVER, *** if and when we make any floating-point
508 // registers callee-saved, then we will have to copy over
509 // the RegisterMap update logic from the Intel code.
510
511 // The constructor of the sender must know whether this frame is interpreted so it can set the
512 // sender's _sp_adjustment_by_callee field. An osr adapter frame was originally
513 // interpreted but its pc is in the code cache (for c1 -> osr_frame_return_id stub), so it must be
514 // explicitly recognized.
515
516 if (is_ricochet_frame()) return sender_for_ricochet_frame(map);
517
518 bool frame_is_interpreted = is_interpreted_frame();
519 if (frame_is_interpreted) {
520 map->make_integer_regs_unsaved();
521 map->shift_window(sp, younger_sp);
522 } else if (_cb != NULL) {
523 // Update the locations of implicitly saved registers to be their
524 // addresses in the register save area.
525 // For %o registers, the addresses of %i registers in the next younger
526 // frame are used.
527 map->shift_window(sp, younger_sp);
528 if (map->update_map()) {
529 // Tell GC to use argument oopmaps for some runtime stubs that need it.
530 // For C1, the runtime stub might not have oop maps, so set this flag
531 // outside of update_register_map.
532 map->set_include_argument_oops(_cb->caller_must_gc_arguments(map->thread()));
533 if (_cb->oop_maps() != NULL) {
534 OopMapSet::update_register_map(this, map);
535 }
536 }
537 }
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