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comparison src/share/vm/runtime/sharedRuntime.hpp @ 14309:63a4eb8bcd23

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8025856: Fix typos in the GC code Summary: Fix about 440 typos in comments in the VM code Reviewed-by: mgerdin, tschatzl, coleenp, kmo, jcoomes
author jwilhelm
date Thu, 23 Jan 2014 14:47:23 +0100
parents 7c0122ed05fb
children 8a9bb7821e28
comparison
equal deleted inserted replaced
14308:870aedf4ba4f 14309:63a4eb8bcd23
380 380
381 // Although a c2i blob will always run interpreted even if compiled code is 381 // Although a c2i blob will always run interpreted even if compiled code is
382 // present if we see that compiled code is present the compiled call site 382 // present if we see that compiled code is present the compiled call site
383 // will be patched/re-resolved so that later calls will run compiled. 383 // will be patched/re-resolved so that later calls will run compiled.
384 384
385 // Aditionally a c2i blob need to have a unverified entry because it can be reached 385 // Additionally a c2i blob need to have a unverified entry because it can be reached
386 // in situations where the call site is an inlined cache site and may go megamorphic. 386 // in situations where the call site is an inlined cache site and may go megamorphic.
387 387
388 // A i2c adapter is simpler than the c2i adapter. This is because it is assumed 388 // A i2c adapter is simpler than the c2i adapter. This is because it is assumed
389 // that the interpreter before it does any call dispatch will record the current 389 // that the interpreter before it does any call dispatch will record the current
390 // stack pointer in the interpreter frame. On return it will restore the stack 390 // stack pointer in the interpreter frame. On return it will restore the stack
574 // 574 //
575 // The I2C flavor takes a stock interpreted call setup, marshals the 575 // The I2C flavor takes a stock interpreted call setup, marshals the
576 // arguments for a Java-compiled call, and jumps to Rmethod-> code()-> 576 // arguments for a Java-compiled call, and jumps to Rmethod-> code()->
577 // code_begin(). It is broken to call it without an nmethod assigned. 577 // code_begin(). It is broken to call it without an nmethod assigned.
578 // The usual behavior is to lift any register arguments up out of the 578 // The usual behavior is to lift any register arguments up out of the
579 // stack and possibly re-pack the extra arguments to be contigious. 579 // stack and possibly re-pack the extra arguments to be contiguous.
580 // I2C adapters will save what the interpreter's stack pointer will be 580 // I2C adapters will save what the interpreter's stack pointer will be
581 // after arguments are popped, then adjust the interpreter's frame 581 // after arguments are popped, then adjust the interpreter's frame
582 // size to force alignment and possibly to repack the arguments. 582 // size to force alignment and possibly to repack the arguments.
583 // After re-packing, it jumps to the compiled code start. There are 583 // After re-packing, it jumps to the compiled code start. There are
584 // no safepoints in this adapter code and a GC cannot happen while 584 // no safepoints in this adapter code and a GC cannot happen while
591 // right place. Hence all the args will likely be copied into the 591 // right place. Hence all the args will likely be copied into the
592 // interpreter's frame, forcing that frame to grow. The compiled frame's 592 // interpreter's frame, forcing that frame to grow. The compiled frame's
593 // outgoing stack args will be dead after the copy. 593 // outgoing stack args will be dead after the copy.
594 // 594 //
595 // Native wrappers, like adapters, marshal arguments. Unlike adapters they 595 // Native wrappers, like adapters, marshal arguments. Unlike adapters they
596 // also perform an offical frame push & pop. They have a call to the native 596 // also perform an official frame push & pop. They have a call to the native
597 // routine in their middles and end in a return (instead of ending in a jump). 597 // routine in their middles and end in a return (instead of ending in a jump).
598 // The native wrappers are stored in real nmethods instead of the BufferBlobs 598 // The native wrappers are stored in real nmethods instead of the BufferBlobs
599 // used by the adapters. The code generation happens here because it's very 599 // used by the adapters. The code generation happens here because it's very
600 // similar to what the adapters have to do. 600 // similar to what the adapters have to do.
601 601
608 address _c2i_entry; 608 address _c2i_entry;
609 address _c2i_unverified_entry; 609 address _c2i_unverified_entry;
610 610
611 #ifdef ASSERT 611 #ifdef ASSERT
612 // Captures code and signature used to generate this adapter when 612 // Captures code and signature used to generate this adapter when
613 // verifing adapter equivalence. 613 // verifying adapter equivalence.
614 unsigned char* _saved_code; 614 unsigned char* _saved_code;
615 int _saved_code_length; 615 int _saved_code_length;
616 #endif 616 #endif
617 617
618 void init(AdapterFingerPrint* fingerprint, address i2c_entry, address c2i_entry, address c2i_unverified_entry) { 618 void init(AdapterFingerPrint* fingerprint, address i2c_entry, address c2i_entry, address c2i_unverified_entry) {