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comparison src/share/vm/runtime/sharedRuntime.hpp @ 17812:a7d4d4655766

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Merge
author kvn
date Wed, 26 Mar 2014 18:21:05 -0700
parents a9becfeecd1b
children cf9f24de0b93
comparison
equal deleted inserted replaced
17789:6b207d038106 17812:a7d4d4655766
139 139
140 #if defined(__SOFTFP__) || defined(E500V2) 140 #if defined(__SOFTFP__) || defined(E500V2)
141 static double dabs(double f); 141 static double dabs(double f);
142 #endif 142 #endif
143 143
144 #if defined(__SOFTFP__) || defined(PPC) 144 #if defined(__SOFTFP__) || defined(PPC32)
145 static double dsqrt(double f); 145 static double dsqrt(double f);
146 #endif 146 #endif
147 147
148 #ifdef __SOFTFP__ 148 #ifdef __SOFTFP__
149 // C++ compiler generates soft float instructions as well as passing 149 // C++ compiler generates soft float instructions as well as passing
360 static void check_member_name_argument_is_last_argument(methodHandle method, 360 static void check_member_name_argument_is_last_argument(methodHandle method,
361 const BasicType* sig_bt, 361 const BasicType* sig_bt,
362 const VMRegPair* regs) NOT_DEBUG_RETURN; 362 const VMRegPair* regs) NOT_DEBUG_RETURN;
363 363
364 // Ditto except for calling C 364 // Ditto except for calling C
365 static int c_calling_convention(const BasicType *sig_bt, VMRegPair *regs, int total_args_passed); 365 //
366 // C argument in register AND stack slot.
367 // Some architectures require that an argument must be passed in a register
368 // AND in a stack slot. These architectures provide a second VMRegPair array
369 // to be filled by the c_calling_convention method. On other architectures,
370 // NULL is being passed as the second VMRegPair array, so arguments are either
371 // passed in a register OR in a stack slot.
372 static int c_calling_convention(const BasicType *sig_bt, VMRegPair *regs, VMRegPair *regs2,
373 int total_args_passed);
374
375 // Compute the new number of arguments in the signature if 32 bit ints
376 // must be converted to longs. Needed if CCallingConventionRequiresIntsAsLongs
377 // is true.
378 static int convert_ints_to_longints_argcnt(int in_args_count, BasicType* in_sig_bt);
379 // Adapt a method's signature if it contains 32 bit integers that must
380 // be converted to longs. Needed if CCallingConventionRequiresIntsAsLongs
381 // is true.
382 static void convert_ints_to_longints(int i2l_argcnt, int& in_args_count,
383 BasicType*& in_sig_bt, VMRegPair*& in_regs);
366 384
367 // Generate I2C and C2I adapters. These adapters are simple argument marshalling 385 // Generate I2C and C2I adapters. These adapters are simple argument marshalling
368 // blobs. Unlike adapters in the tiger and earlier releases the code in these 386 // blobs. Unlike adapters in the tiger and earlier releases the code in these
369 // blobs does not create a new frame and are therefore virtually invisible 387 // blobs does not create a new frame and are therefore virtually invisible
370 // to the stack walking code. In general these blobs extend the callers stack 388 // to the stack walking code. In general these blobs extend the callers stack
374 // by the time we reach the blob there is compiled code available. This allows 392 // by the time we reach the blob there is compiled code available. This allows
375 // the blob to pass the incoming stack pointer (the sender sp) in a known 393 // the blob to pass the incoming stack pointer (the sender sp) in a known
376 // location for the interpreter to record. This is used by the frame code 394 // location for the interpreter to record. This is used by the frame code
377 // to correct the sender code to match up with the stack pointer when the 395 // to correct the sender code to match up with the stack pointer when the
378 // thread left the compiled code. In addition it allows the interpreter 396 // thread left the compiled code. In addition it allows the interpreter
379 // to remove the space the c2i adapter allocated to do it argument conversion. 397 // to remove the space the c2i adapter allocated to do its argument conversion.
380 398
381 // Although a c2i blob will always run interpreted even if compiled code is 399 // 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 400 // 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. 401 // will be patched/re-resolved so that later calls will run compiled.
384 402