1*b5da552cSAndrew Rist @
2*b5da552cSAndrew Rist @   Licensed to the Apache Software Foundation (ASF) under one
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6*b5da552cSAndrew Rist @   to you under the Apache License, Version 2.0 (the
7*b5da552cSAndrew Rist @   "License"); you may not use this file except in compliance
8*b5da552cSAndrew Rist @   with the License.  You may obtain a copy of the License at
9*b5da552cSAndrew Rist @
10*b5da552cSAndrew Rist @     http://www.apache.org/licenses/LICENSE-2.0
11*b5da552cSAndrew Rist @
12*b5da552cSAndrew Rist @   Unless required by applicable law or agreed to in writing,
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18*b5da552cSAndrew Rist @
19*b5da552cSAndrew Rist 
20cdf0e10cSrcweir @ ARM support code for OpenOffice C++/UNO bridging
21cdf0e10cSrcweir @
22cdf0e10cSrcweir @ Written by Peter Naulls <peter@chocky.org>
23cdf0e10cSrcweir @ Modified by Caolan McNamara <caolanm@redhat.com>
24cdf0e10cSrcweir @ Fixed by Michael Casadevall <mcasadevall@kubuntu.org>
25cdf0e10cSrcweir 
26cdf0e10cSrcweir #ifdef __ARM_EABI__
27cdf0e10cSrcweir #  define UNWIND
28cdf0e10cSrcweir #else
29cdf0e10cSrcweir #  define UNWIND @
30cdf0e10cSrcweir #endif
31cdf0e10cSrcweir 
32cdf0e10cSrcweir 	.file	"armhelper.s"
33cdf0e10cSrcweir 	.text
34cdf0e10cSrcweir 	.align	4
35cdf0e10cSrcweir 	.global privateSnippetExecutor
36cdf0e10cSrcweir 	.type privateSnippetExecutor, %function
37cdf0e10cSrcweir privateSnippetExecutor:
38cdf0e10cSrcweir 	UNWIND .fnstart            @ start of unwinder entry
39cdf0e10cSrcweir 
40cdf0e10cSrcweir 	stmfd sp!, {r0-r3}         @ follow other parameters on stack
41cdf0e10cSrcweir 	UNWIND .pad  #16           @ throw this data away on exception
42cdf0e10cSrcweir 	mov   r0, ip               @ r0 points to functionoffset/vtable
43cdf0e10cSrcweir 	mov   r1, sp               @ r1 points to this and params
44cdf0e10cSrcweir 	                           @ (see cppuno.cxx:codeSnippet())
45cdf0e10cSrcweir 	stmfd sp!, {r4,lr}         @ save return address
46cdf0e10cSrcweir 	                           @ (r4 pushed to preserve stack alignment)
47cdf0e10cSrcweir 	UNWIND .save {r4,lr}       @ restore these regs on exception
48cdf0e10cSrcweir 
49cdf0e10cSrcweir 	bl    cpp_vtable_call(PLT)
50cdf0e10cSrcweir 
51cdf0e10cSrcweir 	add   sp, sp, #4           @ no need to restore r4 (we didn't touch it)
52cdf0e10cSrcweir 	ldr   pc, [sp], #20        @ return, discarding function arguments
53cdf0e10cSrcweir 
54cdf0e10cSrcweir 	UNWIND .fnend              @ end of unwinder entry
55cdf0e10cSrcweir 
56cdf0e10cSrcweir 	.size privateSnippetExecutor, . - privateSnippetExecutor
57cdf0e10cSrcweir         .section        .note.GNU-stack,"",%progbits
58