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lightning-sunbird  0.9+nobinonly
xptcinvoke_sparc64_openbsd.cpp File Reference
#include "xptcprivate.h"

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PRUint64 invoke_copy_to_stack (PRUint64 *d, PRUint32 paramCount, nsXPTCVariant *s)

Function Documentation

PRUint64 invoke_copy_to_stack ( PRUint64 d,
PRUint32  paramCount,
nsXPTCVariant s 

Definition at line 35 of file xptcinvoke_sparc64_openbsd.cpp.

    We need to copy the parameters for this function to locals and use them
    from there since the parameters occupy the same stack space as the stack
    we're trying to populate.
  PRUint64 *l_d = d;
  nsXPTCVariant *l_s = s;
  PRUint64 l_paramCount = paramCount;
  PRUint64 regCount = 0;  // return the number of registers to load from the stack

  for(PRUint64 i = 0; i < l_paramCount; i++, l_d++, l_s++)
    if (regCount < 5) regCount++;

    if (l_s->IsPtrData())
      *l_d = (PRUint64)l_s->ptr;
    switch (l_s->type)
      case nsXPTType::T_I8    : *((PRInt64*)l_d)     = l_s->val.i8;    break;
      case nsXPTType::T_I16   : *((PRInt64*)l_d)     = l_s->val.i16;   break;
      case nsXPTType::T_I32   : *((PRInt64*)l_d)     = l_s->val.i32;   break;
      case nsXPTType::T_I64   : *((PRInt64*)l_d)     = l_s->val.i64;   break;
      case nsXPTType::T_U8    : *((PRUint64*)l_d)    = l_s->val.u8;    break;
      case nsXPTType::T_U16   : *((PRUint64*)l_d)    = l_s->val.u16;   break;
      case nsXPTType::T_U32   : *((PRUint64*)l_d)    = l_s->val.u32;   break;
      case nsXPTType::T_U64   : *((PRUint64*)l_d)    = l_s->val.u64;   break;

      /* in the case of floats, we want to put the bits in to the
         64bit space right justified... floats in the paramter array on
         sparcv9 use odd numbered registers.. %f1, %f3, so we have to skip
         the space that would be occupied by %f0, %f2, etc.
      case nsXPTType::T_FLOAT : *(((float*)l_d) + 1) = l_s->val.f;     break;
      case nsXPTType::T_DOUBLE: *((double*)l_d)      = l_s->val.d;     break;
      case nsXPTType::T_BOOL  : *((PRInt64*)l_d)     = l_s->val.b;     break;
      case nsXPTType::T_CHAR  : *((PRUint64*)l_d)    = l_s->val.c;     break;
      case nsXPTType::T_WCHAR : *((PRInt64*)l_d)     = l_s->val.wc;    break;

        // all the others are plain pointer types
        *((void**)l_d) = l_s->val.p;
  return regCount;

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