35944f86f2
this is smaller than firefox and has special handling for small screens which is useful for machines like the zaurus. unfortunately, it's not there yet, see the TODO. please don't add this to the www Makefile yet.
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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