bridges/source/cpp_uno/gcc3_macosx_x86-64/abi.hxx

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  19
  20 #ifndef INCLUDED_BRIDGES_SOURCE_CPP_UNO_GCC3_MACOSX_X86_64_ABI_HXX
  21 #define INCLUDED_BRIDGES_SOURCE_CPP_UNO_GCC3_MACOSX_X86_64_ABI_HXX
  22
  23 // This is an implementation of the x86-64 ABI as described in 'System V
  24 // Application Binary Interface, AMD64 Architecture Processor Supplement'
  25 // (http://www.x86-64.org/documentation/abi-0.95.pdf)
  26
  27 #include <typelib/typedescription.hxx>
  28
  29 namespace x86_64
  30 {
  31
  32 /* 6 general purpose registers are used for parameter passing */
  33 const sal_uInt32 MAX_GPR_REGS = 6;
  34
  35 /* 8 SSE registers are used for parameter passing */
  36 const sal_uInt32 MAX_SSE_REGS = 8;
  37
  38 /* Count number of required registers.
  39
  40  Examine the argument and return set number of register required in each
  41  class.
  42
  43  Return false iff parameter should be passed in memory.
  44 */
  45 bool examine_argument( typelib_TypeDescriptionReference *pTypeRef, bool bInReturn, int &nUsedGPR, int &nUsedSSE ) throw ();
  46
  47 /** Does function that returns this type use a hidden parameter, or registers?
  48
  49  The value can be returned either in a hidden 1st parameter (which is a
  50  pointer to a structure allocated by the caller), or in registers (rax, rdx
  51  for the integers, xmm0, xmm1 for the floating point numbers).
  52 */
  53 bool return_in_hidden_param( typelib_TypeDescriptionReference *pTypeRef ) throw ();
  54
  55 void fill_struct( typelib_TypeDescriptionReference *pTypeRef, const sal_uInt64* pGPR, const double* pSSE, void *pStruct ) throw ();
  56
  57 } // namespace x86_64
  58
  59 #endif // INCLUDED_BRIDGES_SOURCE_CPP_UNO_GCC3_MACOSX_X86_64_ABI_HXX
  60
  61 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */