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lightning-sunbird  0.9+nobinonly
Defines | Functions
xptcstubs_linux_alpha.cpp File Reference
#include "xptcprivate.h"
#include "xptcstubsdef.inc"

Go to the source code of this file.

Defines

#define STUB_MANGLED_ENTRY(n, symbol)
#define STUB_ENTRY(n)
#define SENTINEL_ENTRY(n)

Functions

static nsresult PrepareAndDispatch (nsXPTCStubBase *self, uint32 methodIndex, PRUint64 *args) __asm__("PrepareAndDispatch") __attribute__((used))
 __asm__ ("#### SharedStub ####\n"".text\n\t"".align 5\n\t"".ent SharedStub\n""SharedStub:\n\t"".frame $30,96,$26,0\n\t"".mask 0x4000000,-96\n\t""ldgp $29,0($27)\n""$SharedStub..ng:\n\t""subq $30,96,$30\n\t""stq $26,0($30)\n\t"".prologue 1\n\t""stt $f17,16($30)\n\t""stt $f18,24($30)\n\t""stt $f19,32($30)\n\t""stt $f20,40($30)\n\t""stt $f21,48($30)\n\t""stq $17,56($30)\n\t""stq $18,64($30)\n\t""stq $19,72($30)\n\t""stq $20,80($30)\n\t""stq $21,88($30)\n\t""bis $1,$1,$17\n\t""addq $30,16,$18\n\t""bsr $26,$PrepareAndDispatch..ng\n\t""ldq $26,0($30)\n\t""addq $30,96,$30\n\t""ret $31,($26),1\n\t"".end SharedStub")

Define Documentation

Value:
nsresult nsXPTCStubBase::Sentinel##n() \
{ \
    NS_ASSERTION(0,"nsXPTCStubBase::Sentinel called"); \
    return NS_ERROR_NOT_IMPLEMENTED; \
}

Definition at line 229 of file xptcstubs_linux_alpha.cpp.

Value:
__asm__( \
    STUB_MANGLED_ENTRY(n, "Stub"#n"__14nsXPTCStubBase") \
    );

Definition at line 222 of file xptcstubs_linux_alpha.cpp.

#define STUB_MANGLED_ENTRY (   n,
  symbol 
)
Value:
"#### Stub"#n" ####"      "\n\t" \
    ".text"                   "\n\t" \
    ".align 5"                "\n\t" \
    ".globl " symbol          "\n\t" \
    ".ent " symbol            "\n"   \
symbol ":"                    "\n\t" \
    ".frame $30,0,$26,0"      "\n\t" \
    "ldgp $29,0($27)"         "\n"   \
"$" symbol "..ng:"            "\n\t" \
    ".prologue 1"             "\n\t" \
    "lda $1,"#n               "\n\t" \
    "br $31,$SharedStub..ng"  "\n\t" \
    ".end " symbol

Definition at line 190 of file xptcstubs_linux_alpha.cpp.


Function Documentation

__asm__ ( "#### SharedStub ####\n"".text\n\t"".align 5\n\t"".ent SharedStub\n""SharedStub:\n\t"".frame $  30,
96  ,
26,
0\n\t"".mask  0x4000000,
-96\n\t""ldgp $  29,
0($27)\n""$SharedStub..ng:\n\t""subq $  30,
96  ,
$30\n\t""stq $  26,
0($30)\n\t"".prologue 1\n\t""stt $  f17,
16($30)\n\t""stt $  f18,
24($30)\n\t""stt $  f19,
32($30)\n\t""stt $  f20,
40($30)\n\t""stt $  f21,
48($30)\n\t""stq $  17,
56($30)\n\t""stq $  18,
64($30)\n\t""stq $  19,
72($30)\n\t""stq $  20,
80($30)\n\t""stq $  21,
88($30)\n\t""bis $  1,
1,
$17\n\t""addq $  30,
16  ,
$18\n\t""bsr $  26,
$PrepareAndDispatch..ng\n\t""ldq $  26,
0($30)\n\t""addq $  30,
96  ,
$30\n\t""ret $  31,
($26)  ,
1\n\t"".end SharedStub  
)
static nsresult PrepareAndDispatch ( nsXPTCStubBase *  self,
uint32  methodIndex,
PRUint64 args 
) [static]

Definition at line 49 of file xptcstubs_linux_alpha.cpp.

{
    const PRUint8 PARAM_BUFFER_COUNT = 16;
    const PRUint8 NUM_ARG_REGS = 6-1;        // -1 for "this" pointer

    nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
    nsXPTCMiniVariant* dispatchParams = NULL;
    nsIInterfaceInfo* iface_info = NULL;
    const nsXPTMethodInfo* info;
    PRUint8 paramCount;
    PRUint8 i;
    nsresult result = NS_ERROR_FAILURE;

    NS_ASSERTION(self,"no self");

    self->GetInterfaceInfo(&iface_info);
    NS_ASSERTION(iface_info,"no interface info");

    iface_info->GetMethodInfo(PRUint16(methodIndex), &info);
    NS_ASSERTION(info,"no interface info");

    paramCount = info->GetParamCount();

    // setup variant array pointer
    if(paramCount > PARAM_BUFFER_COUNT)
        dispatchParams = new nsXPTCMiniVariant[paramCount];
    else
        dispatchParams = paramBuffer;
    NS_ASSERTION(dispatchParams,"no place for params");

    // args[0] to args[NUM_ARG_REGS] hold floating point register values
    PRUint64* ap = args + NUM_ARG_REGS;
    for(i = 0; i < paramCount; i++, ap++)
    {
        const nsXPTParamInfo& param = info->GetParam(i);
        const nsXPTType& type = param.GetType();
        nsXPTCMiniVariant* dp = &dispatchParams[i];

        if(param.IsOut() || !type.IsArithmetic())
        {
            dp->val.p = (void*) *ap;
            continue;
        }
        // else
        switch(type)
        {
        case nsXPTType::T_I8     : dp->val.i8  = (PRInt8)    *ap;    break;
        case nsXPTType::T_I16    : dp->val.i16 = (PRInt16)   *ap;    break;
        case nsXPTType::T_I32    : dp->val.i32 = (PRInt32)   *ap;    break;
        case nsXPTType::T_I64    : dp->val.i64 = (PRInt64)   *ap;    break;
        case nsXPTType::T_U8     : dp->val.u8  = (PRUint8)   *ap;    break;
        case nsXPTType::T_U16    : dp->val.u16 = (PRUint16)  *ap;    break;
        case nsXPTType::T_U32    : dp->val.u32 = (PRUint32)  *ap;    break;
        case nsXPTType::T_U64    : dp->val.u64 = (PRUint64)  *ap;    break;
        case nsXPTType::T_FLOAT  :
            if(i < NUM_ARG_REGS)
            {
                // floats passed via registers are stored as doubles
                // in the first NUM_ARG_REGS entries in args
                dp->val.u64 = (PRUint64) args[i];
                dp->val.f = (float) dp->val.d;    // convert double to float
            }
            else
                dp->val.u32 = (PRUint32) *ap;
            break;
        case nsXPTType::T_DOUBLE :
            // doubles passed via registers are also stored
            // in the first NUM_ARG_REGS entries in args
            dp->val.u64 = (i < NUM_ARG_REGS) ? args[i] : *ap;
            break;
        case nsXPTType::T_BOOL   : dp->val.b   = (PRBool)    *ap;    break;
        case nsXPTType::T_CHAR   : dp->val.c   = (char)      *ap;    break;
        case nsXPTType::T_WCHAR  : dp->val.wc  = (PRUnichar) *ap;    break;
        default:
            NS_ASSERTION(0, "bad type");
            break;
        }
    }

    result = self->CallMethod((PRUint16)methodIndex, info, dispatchParams);

    NS_RELEASE(iface_info);

    if(dispatchParams != paramBuffer)
        delete [] dispatchParams;

    return result;
}

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