91ba45c396
Web-browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editing made simple -- all your Internet needs in one application. Based mostly on a port from James Wright <jamesw at bsdhosting.co.za> with input from several - thanks! Tested on i386/amd64/sparc64/macppc.
270 lines
8.7 KiB
C++
270 lines
8.7 KiB
C++
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* Implement shared vtbl methods. */
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/* contributed by Glen Nakamura <glen.nakamura@usa.net> */
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#include <sys/types.h>
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#include <machine/cpu.h>
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#include "xptcprivate.h"
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/* Prototype specifies unmangled function name and disables unused warning */
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static nsresult
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PrepareAndDispatch(nsXPTCStubBase* self, uint32 methodIndex, PRUint64* args)
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__asm__("PrepareAndDispatch") __attribute__((unused));
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static nsresult
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PrepareAndDispatch(nsXPTCStubBase* self, uint32 methodIndex, PRUint64* args)
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{
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const PRUint8 PARAM_BUFFER_COUNT = 16;
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const PRUint8 NUM_ARG_REGS = 6-1; // -1 for "this" pointer
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nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
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nsXPTCMiniVariant* dispatchParams = NULL;
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nsIInterfaceInfo* iface_info = NULL;
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const nsXPTMethodInfo* info;
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PRUint8 paramCount;
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PRUint8 i;
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nsresult result = NS_ERROR_FAILURE;
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NS_ASSERTION(self,"no self");
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self->GetInterfaceInfo(&iface_info);
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NS_ASSERTION(iface_info,"no interface info");
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iface_info->GetMethodInfo(PRUint16(methodIndex), &info);
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NS_ASSERTION(info,"no interface info");
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paramCount = info->GetParamCount();
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// setup variant array pointer
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if(paramCount > PARAM_BUFFER_COUNT)
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dispatchParams = new nsXPTCMiniVariant[paramCount];
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else
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dispatchParams = paramBuffer;
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NS_ASSERTION(dispatchParams,"no place for params");
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// args[0] to args[NUM_ARG_REGS] hold floating point register values
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PRUint64* ap = args + NUM_ARG_REGS;
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for(i = 0; i < paramCount; i++, ap++)
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{
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const nsXPTParamInfo& param = info->GetParam(i);
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const nsXPTType& type = param.GetType();
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nsXPTCMiniVariant* dp = &dispatchParams[i];
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if(param.IsOut() || !type.IsArithmetic())
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{
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dp->val.p = (void*) *ap;
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continue;
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}
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// else
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switch(type)
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{
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case nsXPTType::T_I8 : dp->val.i8 = (PRInt8) *ap; break;
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case nsXPTType::T_I16 : dp->val.i16 = (PRInt16) *ap; break;
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case nsXPTType::T_I32 : dp->val.i32 = (PRInt32) *ap; break;
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case nsXPTType::T_I64 : dp->val.i64 = (PRInt64) *ap; break;
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case nsXPTType::T_U8 : dp->val.u8 = (PRUint8) *ap; break;
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case nsXPTType::T_U16 : dp->val.u16 = (PRUint16) *ap; break;
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case nsXPTType::T_U32 : dp->val.u32 = (PRUint32) *ap; break;
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case nsXPTType::T_U64 : dp->val.u64 = (PRUint64) *ap; break;
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case nsXPTType::T_FLOAT :
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if(i < NUM_ARG_REGS)
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{
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// floats passed via registers are stored as doubles
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// in the first NUM_ARG_REGS entries in args
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dp->val.u64 = (PRUint64) args[i];
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dp->val.f = (float) dp->val.d; // convert double to float
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}
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else
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dp->val.u32 = (PRUint32) *ap;
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break;
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case nsXPTType::T_DOUBLE :
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// doubles passed via registers are also stored
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// in the first NUM_ARG_REGS entries in args
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dp->val.u64 = (i < NUM_ARG_REGS) ? args[i] : *ap;
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break;
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case nsXPTType::T_BOOL : dp->val.b = (PRBool) *ap; break;
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case nsXPTType::T_CHAR : dp->val.c = (char) *ap; break;
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case nsXPTType::T_WCHAR : dp->val.wc = (PRUnichar) *ap; break;
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default:
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NS_ASSERTION(0, "bad type");
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break;
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}
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}
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result = self->CallMethod((PRUint16)methodIndex, info, dispatchParams);
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NS_RELEASE(iface_info);
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if(dispatchParams != paramBuffer)
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delete [] dispatchParams;
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return result;
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}
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/*
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* SharedStub()
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* Collects arguments and calls PrepareAndDispatch. The "methodIndex" is
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* passed to this function via $1 to preserve the argument registers.
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*/
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__asm__(
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"#### SharedStub ####\n"
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".text\n\t"
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".align 5\n\t"
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".ent SharedStub\n"
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"SharedStub:\n\t"
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".frame $30,96,$26,0\n\t"
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".mask 0x4000000,-96\n\t"
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"ldgp $29,0($27)\n"
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"$SharedStub..ng:\n\t"
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"subq $30,96,$30\n\t"
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"stq $26,0($30)\n\t"
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".prologue 1\n\t"
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/*
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* Store arguments passed via registers to the stack.
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* Floating point registers are stored as doubles and converted
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* to floats in PrepareAndDispatch if necessary.
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*/
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"stt $f17,16($30)\n\t" /* floating point registers */
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"stt $f18,24($30)\n\t"
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"stt $f19,32($30)\n\t"
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"stt $f20,40($30)\n\t"
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"stt $f21,48($30)\n\t"
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"stq $17,56($30)\n\t" /* integer registers */
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"stq $18,64($30)\n\t"
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"stq $19,72($30)\n\t"
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"stq $20,80($30)\n\t"
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"stq $21,88($30)\n\t"
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/*
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* Call PrepareAndDispatch function.
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*/
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"bis $1,$1,$17\n\t" /* pass "methodIndex" */
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"addq $30,16,$18\n\t" /* pass "args" */
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"bsr $26,$PrepareAndDispatch..ng\n\t"
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"ldq $26,0($30)\n\t"
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"addq $30,96,$30\n\t"
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"ret $31,($26),1\n\t"
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".end SharedStub"
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);
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#if defined(__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100 /* G++ V3 ABI */
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/*
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* nsresult nsXPTCStubBase::Stub##n()
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* Sets register $1 to "methodIndex" and jumps to SharedStub.
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*/
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#define STUB_ENTRY(n) \
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__asm__( \
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"#### Stub"#n" ####\n" \
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".text\n\t" \
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".align 5\n\t" \
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".globl _ZN14nsXPTCStubBase5Stub"#n"Ev\n\t" \
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".ent _ZN14nsXPTCStubBase5Stub"#n"Ev\n" \
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"_ZN14nsXPTCStubBase5Stub"#n"Ev:\n\t" \
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".frame $30,0,$26,0\n\t" \
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"ldgp $29,0($27)\n" \
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"$_ZN14nsXPTCStubBase5Stub"#n"Ev..ng:\n\t" \
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".prologue 1\n\t" \
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"lda $1,"#n"\n\t" \
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"br $31,$SharedStub..ng\n\t" \
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".end _ZN14nsXPTCStubBase5Stub"#n"Ev" \
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); \
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__asm__( \
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"#### Stub"#n" ####\n" \
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".text\n\t" \
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".align 5\n\t" \
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".globl _ZN14nsXPTCStubBase6Stub"#n"Ev\n\t" \
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".ent _ZN14nsXPTCStubBase6Stub"#n"Ev\n" \
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"_ZN14nsXPTCStubBase6Stub"#n"Ev:\n\t" \
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".frame $30,0,$26,0\n\t" \
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"ldgp $29,0($27)\n" \
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"$_ZN14nsXPTCStubBase6Stub"#n"Ev..ng:\n\t" \
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".prologue 1\n\t" \
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"lda $1,"#n"\n\t" \
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"br $31,$SharedStub..ng\n\t" \
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".end _ZN14nsXPTCStubBase6Stub"#n"Ev" \
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); \
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__asm__( \
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"#### Stub"#n" ####\n" \
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".text\n\t" \
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".align 5\n\t" \
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".globl _ZN14nsXPTCStubBase7Stub"#n"Ev\n\t" \
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".ent _ZN14nsXPTCStubBase7Stub"#n"Ev\n" \
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"_ZN14nsXPTCStubBase7Stub"#n"Ev:\n\t" \
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".frame $30,0,$26,0\n\t" \
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"ldgp $29,0($27)\n" \
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"$_ZN14nsXPTCStubBase7Stub"#n"Ev..ng:\n\t" \
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".prologue 1\n\t" \
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"lda $1,"#n"\n\t" \
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"br $31,$SharedStub..ng\n\t" \
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".end _ZN14nsXPTCStubBase7Stub"#n"Ev" \
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);
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#else
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/*
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* nsresult nsXPTCStubBase::Stub##n()
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* Sets register $1 to "methodIndex" and jumps to SharedStub.
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*/
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#define STUB_ENTRY(n) \
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nsresult nsXPTCStubBase::Stub##n() \
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{ \
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nsresult result; \
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__asm__ __volatile__( \
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"ldah $29,0($27)\n\t" \
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"lda $29,0($29)\n\t" \
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"lda $1, "#n"\n\t" \
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"br $31, $SharedStub..ng\n\t" \
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"mov $0, %0\n\t" \
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: "=r" (result) \
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); \
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return result; \
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}
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#endif
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#define SENTINEL_ENTRY(n) \
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nsresult nsXPTCStubBase::Sentinel##n() \
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{ \
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NS_ASSERTION(0,"nsXPTCStubBase::Sentinel called"); \
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return NS_ERROR_NOT_IMPLEMENTED; \
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}
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#include "xptcstubsdef.inc"
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