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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* Implement shared vtbl methods. */
#ifdef __GNUC__ /* Gnu Compiler. */
#include "xptcprivate.h"
#include "xptc_platforms_unixish_x86.h"
#include "xptc_gcc_x86_unix.h"
extern "C" {
static nsresult ATTRIBUTE_USED
__attribute__ ((regparm (3)))
PrepareAndDispatch(uint32 methodIndex, nsXPTCStubBase* self, PRUint32* args)
{
#define PARAM_BUFFER_COUNT 16
nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
nsXPTCMiniVariant* dispatchParams = NULL;
nsIInterfaceInfo* iface_info = NULL;
const nsXPTMethodInfo* info = NULL;
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");
if (!iface_info)
return NS_ERROR_UNEXPECTED;
iface_info->GetMethodInfo(PRUint16(methodIndex), &info);
NS_ASSERTION(info,"no method info");
if (!info)
return NS_ERROR_UNEXPECTED;
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");
if (!dispatchParams)
return NS_ERROR_OUT_OF_MEMORY;
PRUint32* ap = args;
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
dp->val.p = (void*) *ap;
switch(type)
{
case nsXPTType::T_I64 : dp->val.i64 = *((PRInt64*) ap); ap++; break;
case nsXPTType::T_U64 : dp->val.u64 = *((PRUint64*)ap); ap++; break;
case nsXPTType::T_DOUBLE : dp->val.d = *((double*) ap); ap++; break;
}
}
result = self->CallMethod((PRUint16)methodIndex, info, dispatchParams);
NS_RELEASE(iface_info);
if(dispatchParams != paramBuffer)
delete [] dispatchParams;
return result;
}
} // extern "C"
// NOTE! See xptc_gcc_x86_unix.h for the reason this function exists.
#if (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ == 0))
PRUint32
xptc_PrepareAndDispatch_keeper (void)
{
PRUint32 dummy1;
nsresult ATTRIBUTE_USED __attribute__ ((regparm (3))) (*dummy2)
(uint32, nsXPTCStubBase *, PRUint32*) = PrepareAndDispatch;
// dummy2 references PrepareAndDispatch, now "use" it
__asm__ __volatile__ (
""
: "=&a" (dummy1)
: "g" (dummy2)
);
return dummy1 & 0xF0F00000;
}
#endif
#if defined(__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100 /* G++ V3 ABI */
// gcc3 mangling tends to insert the length of the method name
#define STUB_ENTRY(n) \
asm(".text\n\t" \
".align 2\n\t" \
".if " #n " < 10\n\t" \
".globl " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev\n\t" \
".type " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev,@function\n" \
SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev:\n\t" \
".elseif " #n " < 100\n\t" \
".globl " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev\n\t" \
".type " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev,@function\n" \
SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev:\n\t" \
".elseif " #n " < 1000\n\t" \
".globl " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev\n\t" \
".type " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev,@function\n" \
SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev:\n\t" \
".else\n\t" \
".err \"stub number " #n " >= 1000 not yet supported\"\n\t" \
".endif\n\t" \
"movl $" #n ", %eax\n\t" \
"jmp " SYMBOL_UNDERSCORE "SharedStub\n\t" \
".if " #n " < 10\n\t" \
".size " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev,.-" SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev\n\t" \
".elseif " #n " < 100\n\t" \
".size " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev,.-" SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev\n\t" \
".else\n\t" \
".size " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev,.-" SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev\n\t" \
".endif");
#else
#define STUB_ENTRY(n) \
asm(".text\n\t" \
".align 2\n\t" \
".globl " SYMBOL_UNDERSCORE "Stub" #n "__14nsXPTCStubBase\n\t" \
".type " SYMBOL_UNDERSCORE "Stub" #n "__14nsXPTCStubBase,@function\n" \
SYMBOL_UNDERSCORE "Stub" #n "__14nsXPTCStubBase:\n\t" \
"movl $" #n ", %eax\n\t" \
"jmp " SYMBOL_UNDERSCORE "SharedStub\n\t" \
".size " SYMBOL_UNDERSCORE "Stub" #n "__14nsXPTCStubBase,.-" SYMBOL_UNDERSCORE "Stub" #n "__14nsXPTCStubBase");
#endif
// static nsresult SharedStub(PRUint32 methodIndex) __attribute__((regparm(1)))
asm(".text\n\t"
".align 2\n\t"
".type " SYMBOL_UNDERSCORE "SharedStub,@function\n\t"
SYMBOL_UNDERSCORE "SharedStub:\n\t"
"leal 0x08(%esp), %ecx\n\t"
"movl 0x04(%esp), %edx\n\t"
"jmp " SYMBOL_UNDERSCORE "PrepareAndDispatch\n\t"
".size " SYMBOL_UNDERSCORE "SharedStub,.-" SYMBOL_UNDERSCORE "SharedStub");
#define SENTINEL_ENTRY(n) \
nsresult nsXPTCStubBase::Sentinel##n() \
{ \
NS_ASSERTION(0,"nsXPTCStubBase::Sentinel called"); \
return NS_ERROR_NOT_IMPLEMENTED; \
}
#include "xptcstubsdef.inc"
void
xptc_dummy()
{
}
#else
#error "can't find a compiler to use"
#endif /* __GNUC__ */
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