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.
185 lines
6.8 KiB
C++
185 lines
6.8 KiB
C++
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Netscape 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/NPL/
|
|
*
|
|
* 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) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either 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 NPL, 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 NPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
/* Platform specific code to invoke XPCOM methods on native objects */
|
|
|
|
/* contributed by Glen Nakamura <glen.nakamura@usa.net> */
|
|
|
|
#include "xptcprivate.h"
|
|
|
|
/* Prototype specifies unmangled function name and disables unused warning */
|
|
static void
|
|
invoke_copy_to_stack(PRUint64* d, PRUint32 paramCount, nsXPTCVariant* s)
|
|
__asm__("invoke_copy_to_stack") __attribute__((unused));
|
|
|
|
static void
|
|
invoke_copy_to_stack(PRUint64* d, PRUint32 paramCount, nsXPTCVariant* s)
|
|
{
|
|
const PRUint8 NUM_ARG_REGS = 6-1; // -1 for "this" pointer
|
|
|
|
for(PRUint32 i = 0; i < paramCount; i++, d++, s++)
|
|
{
|
|
if(s->IsPtrData())
|
|
{
|
|
*d = (PRUint64)s->ptr;
|
|
continue;
|
|
}
|
|
switch(s->type)
|
|
{
|
|
case nsXPTType::T_I8 : *d = (PRUint64)s->val.i8; break;
|
|
case nsXPTType::T_I16 : *d = (PRUint64)s->val.i16; break;
|
|
case nsXPTType::T_I32 : *d = (PRUint64)s->val.i32; break;
|
|
case nsXPTType::T_I64 : *d = (PRUint64)s->val.i64; break;
|
|
case nsXPTType::T_U8 : *d = (PRUint64)s->val.u8; break;
|
|
case nsXPTType::T_U16 : *d = (PRUint64)s->val.u16; break;
|
|
case nsXPTType::T_U32 : *d = (PRUint64)s->val.u32; break;
|
|
case nsXPTType::T_U64 : *d = (PRUint64)s->val.u64; break;
|
|
case nsXPTType::T_FLOAT :
|
|
if(i < NUM_ARG_REGS)
|
|
{
|
|
// convert floats to doubles if they are to be passed
|
|
// via registers so we can just deal with doubles later
|
|
union { PRUint64 u64; double d; } t;
|
|
t.d = (double)s->val.f;
|
|
*d = t.u64;
|
|
}
|
|
else
|
|
// otherwise copy to stack normally
|
|
*d = (PRUint64)s->val.u32;
|
|
break;
|
|
case nsXPTType::T_DOUBLE : *d = (PRUint64)s->val.u64; break;
|
|
case nsXPTType::T_BOOL : *d = (PRUint64)s->val.b; break;
|
|
case nsXPTType::T_CHAR : *d = (PRUint64)s->val.c; break;
|
|
case nsXPTType::T_WCHAR : *d = (PRUint64)s->val.wc; break;
|
|
default:
|
|
// all the others are plain pointer types
|
|
*d = (PRUint64)s->val.p;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* XPTC_PUBLIC_API(nsresult)
|
|
* XPTC_InvokeByIndex(nsISupports* that, PRUint32 methodIndex,
|
|
* PRUint32 paramCount, nsXPTCVariant* params, void* vt)
|
|
*/
|
|
__asm__(
|
|
"#### XPTC_InvokeByIndex ####\n"
|
|
".text\n\t"
|
|
".align 5\n\t"
|
|
".globl XPTC_InvokeByIndex\n\t"
|
|
".ent XPTC_InvokeByIndex\n"
|
|
"XPTC_InvokeByIndex:\n\t"
|
|
".frame $15,32,$26,0\n\t"
|
|
".mask 0x4008000,-32\n\t"
|
|
"ldgp $29,0($27)\n"
|
|
"$XPTC_InvokeByIndex..ng:\n\t"
|
|
"subq $30,32,$30\n\t"
|
|
"stq $26,0($30)\n\t"
|
|
"stq $15,8($30)\n\t"
|
|
"bis $30,$30,$15\n\t"
|
|
".prologue 1\n\t"
|
|
|
|
/*
|
|
* Allocate enough stack space to hold the greater of 6 or "paramCount"+1
|
|
* parameters. (+1 for "this" pointer) Room for at least 6 parameters
|
|
* is required for storage of those passed via registers.
|
|
*/
|
|
|
|
"bis $31,5,$2\n\t" /* count = MAX(5, "paramCount") */
|
|
"cmplt $2,$18,$1\n\t"
|
|
"cmovne $1,$18,$2\n\t"
|
|
"s8addq $2,16,$1\n\t" /* room for count+1 params (8 bytes each) */
|
|
"bic $1,15,$1\n\t" /* stack space is rounded up to 0 % 16 */
|
|
"subq $30,$1,$30\n\t"
|
|
|
|
"stq $16,0($30)\n\t" /* save "that" (as "this" pointer) */
|
|
"stq $17,16($15)\n\t" /* save "methodIndex" */
|
|
|
|
"addq $30,8,$16\n\t" /* pass stack pointer */
|
|
"bis $18,$18,$17\n\t" /* pass "paramCount" */
|
|
"bis $19,$19,$18\n\t" /* pass "params" */
|
|
"bsr $26,$invoke_copy_to_stack..ng\n\t" /* call invoke_copy_to_stack */
|
|
|
|
/*
|
|
* Copy the first 6 parameters to registers and remove from stack frame.
|
|
* Both the integer and floating point registers are set for each parameter
|
|
* except the first which is the "this" pointer. (integer only)
|
|
* The floating point registers are all set as doubles since the
|
|
* invoke_copy_to_stack function should have converted the floats.
|
|
*/
|
|
"ldq $16,0($30)\n\t" /* integer registers */
|
|
"ldq $17,8($30)\n\t"
|
|
"ldq $18,16($30)\n\t"
|
|
"ldq $19,24($30)\n\t"
|
|
"ldq $20,32($30)\n\t"
|
|
"ldq $21,40($30)\n\t"
|
|
"ldt $f17,8($30)\n\t" /* floating point registers */
|
|
"ldt $f18,16($30)\n\t"
|
|
"ldt $f19,24($30)\n\t"
|
|
"ldt $f20,32($30)\n\t"
|
|
"ldt $f21,40($30)\n\t"
|
|
|
|
"addq $30,48,$30\n\t" /* remove params from stack */
|
|
|
|
/*
|
|
* Call the virtual function with the constructed stack frame.
|
|
*/
|
|
"bis $16,$16,$1\n\t" /* load "this" */
|
|
"ldq $2,16($15)\n\t" /* load "methodIndex" */
|
|
"ldq $1,0($1)\n\t" /* load vtable */
|
|
#if 0
|
|
"s8addq $2,16,$2\n\t" /* vtable index = "methodIndex" * 8 + 16 */
|
|
#else
|
|
"mulq $2, 8, $2\n\t"
|
|
"addq $2, 0, $2\n\t" /* vtable index = "methodIndex" * 16 + 24 */
|
|
#endif
|
|
"addq $1,$2,$1\n\t"
|
|
"ldq $27,0($1)\n\t" /* load address of function */
|
|
"jsr $26,($27),0\n\t" /* call virtual function */
|
|
"ldgp $29,0($26)\n\t"
|
|
|
|
"bis $15,$15,$30\n\t"
|
|
"ldq $26,0($30)\n\t"
|
|
"ldq $15,8($30)\n\t"
|
|
"addq $30,32,$30\n\t"
|
|
"ret $31,($26),1\n\t"
|
|
".end XPTC_InvokeByIndex"
|
|
);
|
|
|