path: root/net-libs/xulrunner/files/xulrunner-1.9.2_beta4-mips-n32.patch

From 1aa3577cf7e79b574bd2cff058ea00221194869b Mon Sep 17 00:00:00 2001
From: Zhang Le <r0bertz@gentoo.org>
Date: Thu, 12 Mar 2009 02:24:34 +0800
Subject: [PATCH 2/2] xulrunner mips n32 ABI patch

Signed-off-by: Zhang Le <r0bertz@gentoo.org>
---
 xpcom/reflect/xptcall/src/md/unix/Makefile.in      |    5 +
 .../xptcall/src/md/unix/xptcinvoke_asm_mips64.s    |  159 ++++++++++++++
 .../xptcall/src/md/unix/xptcinvoke_mips64.cpp      |  173 ++++++++++++++++
 .../xptcall/src/md/unix/xptcstubs_asm_mips64.s     |  149 +++++++++++++
 .../xptcall/src/md/unix/xptcstubs_mips64.cpp       |  218 ++++++++++++++++++++
 5 files changed, 704 insertions(+), 0 deletions(-)
 create mode 100644 xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_mips64.s
 create mode 100644 xpcom/reflect/xptcall/src/md/unix/xptcinvoke_mips64.cpp
 create mode 100644 xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_mips64.s
 create mode 100644 xpcom/reflect/xptcall/src/md/unix/xptcstubs_mips64.cpp

diff --git a/xpcom/reflect/xptcall/src/md/unix/Makefile.in b/xpcom/reflect/xptcall/src/md/unix/Makefile.in
index 524174e..63586cf 100644
--- a/xpcom/reflect/xptcall/src/md/unix/Makefile.in
+++ b/xpcom/reflect/xptcall/src/md/unix/Makefile.in
@@ -274,8 +274,13 @@ endif
 
 ifeq ($(OS_ARCH),Linux)
 ifneq (,$(findstring mips, $(OS_TEST)))
+ifneq (,$(findstring mips64, $(OS_TEST)))
+CPPSRCS		:= xptcinvoke_mips64.cpp xptcstubs_mips64.cpp
+ASFILES		:= xptcinvoke_asm_mips64.s xptcstubs_asm_mips64.s
+else
 CPPSRCS		:= xptcinvoke_mips.cpp xptcstubs_mips.cpp
 ASFILES		:= xptcinvoke_asm_mips.s xptcstubs_asm_mips.s
+endif
 ASFLAGS		+= -I$(DIST)/include -x assembler-with-cpp
 endif
 endif
diff --git a/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_mips64.s b/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_mips64.s
new file mode 100644
index 0000000..f146ad8
--- /dev/null
+++ b/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_mips64.s
@@ -0,0 +1,159 @@
+/* -*- 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) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   ZHANG Le    <r0bertz@gentoo.org>
+ *
+ * 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 ***** */
+#include <sys/regdef.h>
+#include <sys/asm.h>
+
+.text
+.globl  invoke_count_words
+.globl  invoke_copy_to_stack
+
+LOCALSZ=7		# a0, a1, a2, a3, s0, ra, gp
+FRAMESZ=(((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK
+
+RAOFF=FRAMESZ-(1*SZREG)
+A0OFF=FRAMESZ-(2*SZREG)
+A1OFF=FRAMESZ-(3*SZREG)
+A2OFF=FRAMESZ-(4*SZREG)
+A3OFF=FRAMESZ-(5*SZREG)
+S0OFF=FRAMESZ-(6*SZREG)
+GPOFF=FRAMESZ-(7*SZREG)
+
+#
+# _NS_InvokeByIndex_P(that, methodIndex, paramCount, params)
+#                      a0       a1          a2         a3
+
+NESTED(_NS_InvokeByIndex_P, FRAMESZ, ra)
+	PTR_SUBU sp, FRAMESZ
+	SETUP_GP64(GPOFF, _NS_InvokeByIndex_P)
+
+	REG_S	ra, RAOFF(sp)
+	REG_S	a0, A0OFF(sp)
+	REG_S	a1, A1OFF(sp)
+	REG_S	a2, A2OFF(sp)
+	REG_S	a3, A3OFF(sp)
+	REG_S	s0, S0OFF(sp)
+
+	# invoke_count_words(paramCount, params)
+	move    a0, a2
+	move    a1, a3
+	jal     invoke_count_words
+
+	# invoke_copy_to_stack(PRUint32* d, PRUint32 paramCount,
+	#                      nsXPTCVariant* s, PRUint32 *reg)
+
+	REG_L   a1, A2OFF(sp)   # a1 - paramCount
+	REG_L	a2, A3OFF(sp)	# a2 - params
+
+	# save sp before we copy the params to the stack
+	move	t0, sp
+
+	# assume full size of 16 bytes per param to be safe
+	sll	v0, 4		# 16 bytes * num params
+	subu	sp, sp, v0	# make room
+	move	a0, sp		# a0 - param stack address
+
+	# create temporary stack space to write int and fp regs
+	subu    sp, 64          # 64 = 8 regs of 8 bytes
+	move    a3, sp
+
+	# save the old sp and save the arg stack
+	subu	sp, sp, 16
+	REG_S	t0, 0(sp)
+	REG_S	a0, 8(sp)
+
+	# copy the param into the stack areas
+	jal	invoke_copy_to_stack
+
+	REG_L	t3, 8(sp)	# get previous a0
+	REG_L	sp, 0(sp)	# get orig sp back
+
+	REG_L	a0, A0OFF(sp)	# a0 - that
+	REG_L	a1, A1OFF(sp)	# a1 - methodIndex
+
+	# t1 = methodIndex * pow(2, PTRLOG)
+	# (use shift instead of mult)
+	sll	t1, a1, PTRLOG
+
+	# calculate the function we need to jump to,
+	# which must then be saved in t9
+	lw	t9, 0(a0)
+	addu	t9, t9, t1
+#if defined(__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100 /* G++ V3 ABI */
+	lw	t9, (t9)
+#else /* not G++ V3 ABI */
+	lw	t9, 2*PTRSIZE(t9)
+#endif /* G++ V3 ABI */
+
+	# get register save area from invoke_copy_to_stack
+	subu	t1, t3, 64
+
+	# a1..a7 and f13..f19 should now be set to what
+	# invoke_copy_to_stack told us. skip a0 and f12
+	# because that's the "this" pointer
+
+	REG_L	a1,  0(t1)
+	REG_L	a2,  8(t1)
+	REG_L	a3, 16(t1)
+	REG_L	a4, 24(t1)
+	REG_L	a5, 32(t1)
+	REG_L	a6, 40(t1)
+	REG_L	a7, 48(t1)
+
+	l.d	$f13,  0(t1)
+	l.d	$f14,  8(t1)
+	l.d	$f15, 16(t1)
+	l.d	$f16, 24(t1)
+	l.d	$f17, 32(t1)
+	l.d	$f18, 40(t1)
+	l.d	$f19, 48(t1)
+
+	# save away our stack pointer and create
+	# the stack pointer for the function
+	move	s0, sp
+	move	sp, t3
+
+	jalr	t9
+
+	move	sp, s0
+
+	RESTORE_GP64
+	REG_L	ra, RAOFF(sp)
+	REG_L	s0, S0OFF(sp)
+	PTR_ADDU	sp, FRAMESZ
+	j	ra
+.end _NS_InvokeByIndex_P
diff --git a/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_mips64.cpp b/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_mips64.cpp
new file mode 100644
index 0000000..d1d1a7d
--- /dev/null
+++ b/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_mips64.cpp
@@ -0,0 +1,173 @@
+/* -*- 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) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   ZHANG Le    <r0bertz@gentoo.org>
+ *
+ * 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 ***** */
+
+/* Platform specific code to invoke XPCOM methods on native objects */
+
+#include "xptcprivate.h"
+
+#if (_MIPS_SIM != _ABIN32)
+#error "This code is for MIPS N32 only"
+#endif
+
+extern "C" uint32
+invoke_count_words(PRUint32 paramCount, nsXPTCVariant* s)
+{
+    return paramCount;
+}
+
+extern "C" void
+invoke_copy_to_stack(PRUint64* d, PRUint32 paramCount,
+                     nsXPTCVariant* s, PRUint64 *regs)
+{
+#define N_ARG_REGS       7       /* 8 regs minus 1 for "this" ptr */
+
+    for (PRUint32 i = 0; i < paramCount; i++, s++)
+    {
+        if (s->IsPtrData()) {
+            if (i < N_ARG_REGS)
+               regs[i] = (PRUint64)s->ptr;
+            else
+               *d++ = (PRUint64)s->ptr;
+            continue;
+        }
+        switch (s->type) {
+        //
+        // signed types first
+        //
+        case nsXPTType::T_I8:
+           if (i < N_ARG_REGS)
+              ((PRInt64*)regs)[i] = s->val.i8;
+           else
+              *d++ = s->val.i8;
+           break;
+        case nsXPTType::T_I16:
+           if (i < N_ARG_REGS)
+              ((PRInt64*)regs)[i] = s->val.i16;
+           else
+              *d++ = s->val.i16;
+           break;
+        case nsXPTType::T_I32:
+           if (i < N_ARG_REGS)
+              ((PRInt64*)regs)[i] = s->val.i32;
+           else
+              *d++ = s->val.i32;
+           break;
+        case nsXPTType::T_I64:
+           if (i < N_ARG_REGS)
+              ((PRInt64*)regs)[i] = s->val.i64;
+           else
+              *d++ = s->val.i64;
+           break;
+        //
+        // unsigned types next
+        //
+        case nsXPTType::T_U8:
+           if (i < N_ARG_REGS)
+              regs[i] = s->val.u8;
+           else
+              *d++ = s->val.u8;
+           break;
+        case nsXPTType::T_U16:
+           if (i < N_ARG_REGS)
+              regs[i] = s->val.u16;
+           else
+              *d++ = s->val.u16;
+           break;
+        case nsXPTType::T_U32:
+           if (i < N_ARG_REGS)
+              regs[i] = s->val.u32;
+           else
+              *d++ = s->val.u32;
+           break;
+        case nsXPTType::T_U64:
+           if (i < N_ARG_REGS)
+              regs[i] = s->val.u64;
+           else
+              *d++ = s->val.u64;
+           break;
+        case nsXPTType::T_FLOAT:
+           if (i < N_ARG_REGS)
+              *(float*)&regs[i] = s->val.f;
+           else
+              *(float*)d++ = s->val.f;
+           break;
+        case nsXPTType::T_DOUBLE:
+           if (i < N_ARG_REGS)
+              *(double*)&regs[i] = s->val.d;
+           else
+              *(double*)d++ = s->val.d;
+           break;
+        case nsXPTType::T_BOOL:
+           if (i < N_ARG_REGS)
+              regs[i] = s->val.b;
+           else
+              *d++ = s->val.b;
+           break;
+        case nsXPTType::T_CHAR:
+           if (i < N_ARG_REGS)
+              regs[i] = s->val.c;
+           else
+              *d++ = s->val.c;
+           break;
+        case nsXPTType::T_WCHAR:
+           if (i < N_ARG_REGS)
+              regs[i] = s->val.wc;
+           else
+              *d++ = s->val.wc;
+           break;
+        default:
+           // all the others are plain pointer types
+           if (i < N_ARG_REGS)
+              regs[i] = (PRUint64)s->val.p;
+           else
+              *d++ = (PRUint64)s->val.p;
+           break;
+        }
+    }
+}
+
+extern "C" nsresult _NS_InvokeByIndex_P(nsISupports* that, PRUint32 methodIndex,
+                                        PRUint32 paramCount,
+                                        nsXPTCVariant* params);
+
+EXPORT_XPCOM_API(nsresult)
+NS_InvokeByIndex_P(nsISupports* that, PRUint32 methodIndex,
+                   PRUint32 paramCount, nsXPTCVariant* params)
+{
+    return _NS_InvokeByIndex_P(that, methodIndex, paramCount, params);
+}
diff --git a/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_mips64.s b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_mips64.s
new file mode 100644
index 0000000..dfee24b
--- /dev/null
+++ b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_mips64.s
@@ -0,0 +1,149 @@
+/* -*- 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) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   ZHANG Le    <r0bertz@gentoo.org>
+ *
+ * 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 ***** */
+#include <sys/regdef.h>
+#include <sys/asm.h>
+
+LOCALSZ=16
+FRAMESZ=(((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK
+
+A1OFF=FRAMESZ-(9*SZREG)
+A2OFF=FRAMESZ-(8*SZREG)
+A3OFF=FRAMESZ-(7*SZREG)
+A4OFF=FRAMESZ-(6*SZREG)
+A5OFF=FRAMESZ-(5*SZREG)
+A6OFF=FRAMESZ-(4*SZREG)
+A7OFF=FRAMESZ-(3*SZREG)
+GPOFF=FRAMESZ-(2*SZREG)
+RAOFF=FRAMESZ-(1*SZREG)
+
+F13OFF=FRAMESZ-(16*SZREG)
+F14OFF=FRAMESZ-(15*SZREG)
+F15OFF=FRAMESZ-(14*SZREG)
+F16OFF=FRAMESZ-(13*SZREG)
+F17OFF=FRAMESZ-(12*SZREG)
+F18OFF=FRAMESZ-(11*SZREG)
+F19OFF=FRAMESZ-(10*SZREG)
+
+#define SENTINEL_ENTRY(n)         /* defined in cpp file, not here */
+
+#if defined(__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100 /* G++ V3 ABI */
+#define STUB_ENTRY(x)						\
+	.if x < 10;						\
+	MAKE_STUB(x, _ZN14nsXPTCStubBase5Stub ##x ##Ev);	\
+	.elseif x < 100;					\
+	MAKE_STUB(x, _ZN14nsXPTCStubBase6Stub ##x ##Ev);	\
+	.elseif x < 1000;					\
+	MAKE_STUB(x, _ZN14nsXPTCStubBase7Stub ##x ##Ev);	\
+	.else;							\
+	.err;							\
+	.endif
+#else /* not G++ V3 ABI */
+#define STUB_ENTRY(x)						\
+	MAKE_STUB(x, Stub ##x ##__14nsXPTCStubBase)
+#endif /* G++ V3 ABI */
+
+#define MAKE_STUB(x, name)					\
+	.globl	name;		\
+	.type	name,@function;	\
+	.aent	name,0;		\
+name:;				\
+	PTR_SUBU sp,FRAMESZ;					\
+	SETUP_GP64(GPOFF, name);				\
+	li	t0,x;						\
+	b	sharedstub;					\
+
+#
+# open a dummy frame for the function entries
+#
+	.text
+	.align	2
+	.type	dummy,@function
+	.ent	dummy, 0
+dummy:
+	.frame	sp, FRAMESZ, ra
+	.mask	0x90000FF0, RAOFF-FRAMESZ
+	.fmask	0x000FF000, F19OFF-FRAMESZ
+
+#include "xptcstubsdef.inc"
+
+sharedstub:
+
+	REG_S	a1, A1OFF(sp)
+	REG_S	a2, A2OFF(sp)
+	REG_S	a3, A3OFF(sp)
+	REG_S	a4, A4OFF(sp)
+	REG_S	a5, A5OFF(sp)
+	REG_S	a6, A6OFF(sp)
+	REG_S	a7, A7OFF(sp)
+	REG_S	ra, RAOFF(sp)
+
+	s.d	$f13, F13OFF(sp)
+	s.d	$f14, F14OFF(sp)
+	s.d	$f15, F15OFF(sp)
+	s.d	$f16, F16OFF(sp)
+	s.d	$f17, F17OFF(sp)
+	s.d	$f18, F18OFF(sp)
+	s.d	$f19, F19OFF(sp)
+
+	# t0 is methodIndex
+	move	a1, t0
+
+	# a2 is stack address where extra function params
+	# are stored that do not fit in registers
+	move	a2, sp
+	addi	a2, FRAMESZ
+
+	# a3 is stack address of a1..a7
+	move	a3, sp
+	addi	a3, A1OFF
+
+	# a4 is stack address of f13..f19
+	move	a4, sp
+	addi	a4, F13OFF
+
+	# PrepareAndDispatch(that, methodIndex, args, gprArgs, fpArgs)
+	#                     a0       a1        a2     a3       a4
+	#
+	jal	PrepareAndDispatch
+
+	REG_L	ra, RAOFF(sp)
+	RESTORE_GP64
+
+	PTR_ADDU sp, FRAMESZ
+	j	ra
+	END(dummy)
diff --git a/xpcom/reflect/xptcall/src/md/unix/xptcstubs_mips64.cpp b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_mips64.cpp
new file mode 100644
index 0000000..c404065
--- /dev/null
+++ b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_mips64.cpp
@@ -0,0 +1,218 @@
+/* -*- 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):
+ *   ZHANG Le    <r0bertz@gentoo.org>
+ *
+ * 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 ***** */
+
+#include "xptcprivate.h"
+#include "xptiprivate.h"
+
+#if (_MIPS_SIM != _ABIN32)
+#error "This code is for MIPS N32 only"
+#endif
+
+/*
+ * This is for MIPS N32 ABI
+ *
+ * When we're called, the "gp" registers are stored in gprData and
+ * the "fp" registers are stored in fprData.  There are 8 regs
+ * available which coorespond to the first 7 parameters of the
+ * function and the "this" pointer.  If there are additional parms,
+ * they are stored on the stack at address "args".
+ *
+ */
+extern "C" nsresult
+PrepareAndDispatch(nsXPTCStubBase* self, PRUint32 methodIndex, PRUint64* args,
+                   PRUint64 *gprData, double *fprData)
+{
+#define PARAM_BUFFER_COUNT		16
+#define PARAM_GPR_COUNT			7
+#define PARAM_FPR_COUNT			7
+
+    nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
+    nsXPTCMiniVariant* dispatchParams = NULL;
+    const nsXPTMethodInfo* info;
+    PRUint8 paramCount;
+    PRUint8 i;
+    nsresult result = NS_ERROR_FAILURE;
+
+    NS_ASSERTION(self,"no self");
+
+    self->mEntry->GetMethodInfo(PRUint16(methodIndex), &info);
+    NS_ASSERTION(info,"no method 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");
+
+    PRUint64* ap = args;
+    PRUint32 iCount = 0;
+    for(i = 0; i < paramCount; i++)
+    {
+        const nsXPTParamInfo& param = info->GetParam(i);
+        const nsXPTType& type = param.GetType();
+        nsXPTCMiniVariant* dp = &dispatchParams[i];
+
+        if(param.IsOut() || !type.IsArithmetic())
+        {
+            if (iCount < PARAM_GPR_COUNT)
+            	dp->val.p = (void*)gprData[iCount++];
+            else
+            	dp->val.p = (void*)*ap++;
+            continue;
+        }
+        // else
+        switch(type)
+        {
+        case nsXPTType::T_I8:
+           if (iCount < PARAM_GPR_COUNT)
+              dp->val.i8  = (PRInt8)gprData[iCount++];
+           else
+              dp->val.i8  = (PRInt8)*ap++;
+           break;
+
+        case nsXPTType::T_I16:
+            if (iCount < PARAM_GPR_COUNT)
+               dp->val.i16  = (PRInt16)gprData[iCount++];
+            else
+               dp->val.i16  = (PRInt16)*ap++;
+            break;
+
+        case nsXPTType::T_I32:
+            if (iCount < PARAM_GPR_COUNT)
+               dp->val.i32  = (PRInt32)gprData[iCount++];
+            else
+               dp->val.i32  = (PRInt32)*ap++;
+            break;
+
+        case nsXPTType::T_I64:
+            if (iCount < PARAM_GPR_COUNT)
+               dp->val.i64  = (PRInt64)gprData[iCount++];
+            else
+               dp->val.i64  = (PRInt64)*ap++;
+            break;
+
+        case nsXPTType::T_U8:
+            if (iCount < PARAM_GPR_COUNT)
+               dp->val.u8  = (PRUint8)gprData[iCount++];
+            else
+               dp->val.u8  = (PRUint8)*ap++;
+            break;
+
+        case nsXPTType::T_U16:
+            if (iCount < PARAM_GPR_COUNT)
+               dp->val.u16  = (PRUint16)gprData[iCount++];
+            else
+                dp->val.u16  = (PRUint16)*ap++;
+            break;
+
+        case nsXPTType::T_U32:
+            if (iCount < PARAM_GPR_COUNT)
+               dp->val.u32  = (PRUint32)gprData[iCount++];
+            else
+               dp->val.u32  = (PRUint32)*ap++;
+            break;
+
+        case nsXPTType::T_U64:
+            if (iCount < PARAM_GPR_COUNT)
+               dp->val.u64  = (PRUint64)gprData[iCount++];
+            else
+               dp->val.u64  = (PRUint64)*ap++;
+            break;
+
+        case nsXPTType::T_FLOAT:
+             if (iCount < PARAM_FPR_COUNT)
+                dp->val.f  = (double)fprData[iCount++];
+             else
+                dp->val.f  = *((double*)ap++);
+             break;
+
+        case nsXPTType::T_DOUBLE:
+              if (iCount < PARAM_FPR_COUNT)
+                 dp->val.d  = (double)fprData[iCount++];
+              else
+                 dp->val.d  = *((double*)ap++);
+              break;
+
+        case nsXPTType::T_BOOL:
+           if (iCount < PARAM_GPR_COUNT)
+              dp->val.b  = (PRBool)gprData[iCount++];
+           else
+              dp->val.b  = (PRBool)*ap++;
+           break;
+
+        case nsXPTType::T_CHAR:
+           if (iCount < PARAM_GPR_COUNT)
+              dp->val.c  = (char)gprData[iCount++];
+           else
+              dp->val.c  = (char)*ap++;
+           break;
+
+        case nsXPTType::T_WCHAR:
+           if (iCount < PARAM_GPR_COUNT)
+              dp->val.wc  = (wchar_t)gprData[iCount++];
+           else
+              dp->val.wc  = (wchar_t)*ap++;
+           break;
+
+        default:
+            NS_ASSERTION(0, "bad type");
+            break;
+        }
+    }
+
+    result = self->mOuter->CallMethod((PRUint16)methodIndex, info, dispatchParams);
+
+    if(dispatchParams != paramBuffer)
+        delete [] dispatchParams;
+
+    return result;
+}
+
+#define STUB_ENTRY(n)		/* defined in the assembly file */
+
+#define SENTINEL_ENTRY(n) \
+nsresult nsXPTCStubBase::Sentinel##n() \
+{ \
+    NS_ASSERTION(0,"nsXPTCStubBase::Sentinel called"); \
+    return NS_ERROR_NOT_IMPLEMENTED; \
+}
+
+#include "xptcstubsdef.inc"
-- 
1.6.2