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lightning-sunbird  0.9+nobinonly
Functions
xptcinvoke_linux_m68k.cpp File Reference
#include "xptcprivate.h"

Go to the source code of this file.

Functions

static PRUint32 invoke_count_words (PRUint32 paramCount, nsXPTCVariant *s)
void invoke_copy_to_stack (PRUint32 *d, PRUint32 paramCount, nsXPTCVariant *s)
 XPTC_InvokeByIndex (nsISupports *that, PRUint32 methodIndex, PRUint32 paramCount, nsXPTCVariant *params)

Function Documentation

void invoke_copy_to_stack ( PRUint32 d,
PRUint32  paramCount,
nsXPTCVariant s 
)

Definition at line 95 of file xptcinvoke_linux_m68k.cpp.

    {
        for(PRUint32 i = 0; i < paramCount; i++, d++, s++)
        {
            if(s->IsPtrData())
            {
                *((void**)d) = s->ptr;
                continue;
            }
            switch(s->type)
            {
            // 8 and 16 bit types should be promoted to 32 bits when copying
            // onto the stack.
            case nsXPTType::T_I8     : *((PRUint32*)d) = s->val.i8;          break;
            case nsXPTType::T_I16    : *((PRUint32*)d) = s->val.i16;         break;
            case nsXPTType::T_I32    : *((PRInt32*) d) = s->val.i32;         break;
            case nsXPTType::T_I64    : *((PRInt64*) d) = s->val.i64; d++;    break;
            case nsXPTType::T_U8     : *((PRUint32*)d) = s->val.u8;          break;
            case nsXPTType::T_U16    : *((PRUint32*)d) = s->val.u16;         break;
            case nsXPTType::T_U32    : *((PRUint32*)d) = s->val.u32;         break;
            case nsXPTType::T_U64    : *((PRUint64*)d) = s->val.u64; d++;    break;
            case nsXPTType::T_FLOAT  : *((float*)   d) = s->val.f;           break;
            case nsXPTType::T_DOUBLE : *((double*)  d) = s->val.d;   d++;    break;
            case nsXPTType::T_BOOL   : *((PRBool*)  d) = s->val.b;           break;
            case nsXPTType::T_CHAR   : *((PRUint32*)d) = s->val.c;           break;
            case nsXPTType::T_WCHAR  : *((wchar_t*) d) = s->val.wc;          break;

            default:
                // all the others are plain pointer types
                *((void**)d) = s->val.p;
                break;
            }
        }
    }

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static PRUint32 invoke_count_words ( PRUint32  paramCount,
nsXPTCVariant s 
) [static]

Definition at line 46 of file xptcinvoke_linux_m68k.cpp.

    {
        PRUint32 result = 0;
        for(PRUint32 i = 0; i < paramCount; i++, s++)
        {
            if(s->IsPtrData())
            {
                result++;
                continue;
            }
            switch(s->type)
            {
            case nsXPTType::T_I8     :
            case nsXPTType::T_I16    :
            case nsXPTType::T_I32    :
                result++;
                break;
            case nsXPTType::T_I64    :
                result+=2;
                break;
            case nsXPTType::T_U8     :
            case nsXPTType::T_U16    :
            case nsXPTType::T_U32    :
                result++;
                break;
            case nsXPTType::T_U64    :
                result+=2;
                break;
            case nsXPTType::T_FLOAT  :
                result++;
                break;
            case nsXPTType::T_DOUBLE :
                result+=2;
                break;
            case nsXPTType::T_BOOL   :
            case nsXPTType::T_CHAR   :
            case nsXPTType::T_WCHAR  :
                result++;
                break;
            default:
                // all the others are plain pointer types
                result++;
                break;
            }
        }
        return result;
    }

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XPTC_InvokeByIndex ( nsISupports *  that,
PRUint32  methodIndex,
PRUint32  paramCount,
nsXPTCVariant params 
)

Definition at line 132 of file xptcinvoke_linux_m68k.cpp.

{
    PRUint32 result, n;

    n = invoke_count_words(paramCount, params) * 4;

 __asm__ __volatile__(
    "subl  %5, %/sp\n\t"      /* make room for params */
    "movl  %/sp, %/a0\n\t"
    "movl  %4, %/sp@-\n\t"
    "movl  %3, %/sp@-\n\t"
    "movl  %/a0, %/sp@-\n\t"
    "jbsr  invoke_copy_to_stack\n\t"   /* copy params */
    "addl  #12, %/sp\n\t"
    "movl  %1, %/a0\n\t"
    "movl  %/a0, %/sp@-\n\t"
    "movl  %/a0@, %/a0\n\t"
    "movl  %2, %/d0\n\t"      /* function index */
#if defined(__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100 /* G++ V3 ABI */
    "movl  %/a0@(%/d0:l:4), %/a0\n\t"
#else /* not V3 */
    "movl  %/a0@(8,%/d0:l:4), %/a0\n\t"                
#endif
    "jbsr  %/a0@\n\t"         /* safe to not cleanup sp */
    "movl  %/d0, %0\n\t"
    "addql #4, %/sp\n\t"
    "addl  %5, %/sp"
    : "=g" (result)         /* %0 */
    : "g" (that),           /* %1 */
      "g" (methodIndex),    /* %2 */
      "g" (paramCount),     /* %3 */
      "g" (params),         /* %4 */
      "g" (n)               /* %5 */
    : "a0", "a1", "d0", "d1", "memory"
    );
  
  return result;
}

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