Linux/SPARC w/GCC3 xptcall broken. r=dougt, sr=shaver@mozilla.org, b=144368, patch by davem@redhat.com.

xpcom/reflect/xptcall/src/md/unix/Makefile.in

@@ -268,9 +268,13 @@ endif
 ifeq ($(OS_ARCH),Linux)
 ifneq (,$(findstring sparc,$(OS_TEST)))
 CPPSRCS		:= xptcinvoke_sparc_solaris.cpp xptcstubs_sparc_solaris.cpp
+ifdef HAVE_GCC3_ABI
+ASFILES		:= xptcinvoke_asm_sparc_linux_GCC3.s xptcstubs_asm_sparc_solaris.s
+else
 ASFILES		:= xptcinvoke_asm_sparc_linux.s xptcstubs_asm_sparc_solaris.s
 endif
 endif
+endif
 #
 # NetBSD/SPARC
 #

xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_sparc_linux_GCC3.s

@@ -0,0 +1,84 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * 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):
+ *  David S. Miller <davem@redhat.com> (ported to gcc3)
+ *
+ * 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 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.
+ */
+
+/*
+ * Platform specific code to invoke XPCOM methods on native objects for
+ * Linux/Sparc with gcc 3 ABI.
+ */
+        .global XPTC_InvokeByIndex
+/*
+ *  XPTC_InvokeByIndex(nsISupports* that, PRUint32 methodIndex,
+ *                 PRUint32 paramCount, nsXPTCVariant* params);
+ *   
+ */
+XPTC_InvokeByIndex:
+        save    %sp,-(64 + 16),%sp   ! room for the register window and
+                                    ! struct pointer, rounded up to 0 % 16
+        mov     %i2,%o0             ! paramCount
+        call    invoke_count_words  ! returns the required stack size in %o0
+        mov     %i3,%o1             ! params
+        
+	sll     %o0,2,%l0           ! number of bytes
+        sub     %sp,%l0,%sp         ! create the additional stack space
+            
+        mov     %sp,%o0             ! pointer for copied args
+        add     %o0,72,%o0          ! step past the register window, the
+                                    ! struct result pointer and the 'this' slot
+        mov     %i2,%o1             ! paramCount
+        call    invoke_copy_to_stack
+        mov     %i3,%o2             ! params
+!
+!   calculate the target address from the vtable
+!
+	ld	[%i0],%l1	    ! *that --> vTable
+	sll	%i1,2,%i1	    ! multiply index by 4
+	add	%i1,%l1,%l1	    ! l1 now points to vTable entry
+        ld      [%l1],%l0           ! target address
+
+.L5:    ld      [%sp + 88],%o5
+.L4:	ld	[%sp + 84],%o4
+.L3:	ld	[%sp + 80],%o3
+.L2:	ld	[%sp + 76],%o2
+.L1:	ld	[%sp + 72],%o1
+.L0:
+        jmpl    %l0,%o7             ! call the routine
+! always have a 'this', from the incoming 'that'
+	mov	%i0,%o0
+        
+	mov     %o0,%i0             ! propagate return value
+        ret
+        restore