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@ ARM support code for OpenOffice C++/UNO bridging
@
@ Written by Peter Naulls <peter@chocky.org>
@ Modified by Caolan McNamara <caolanm@redhat.com>
@ Fixed by Michael Casadevall <mcasadevall@kubuntu.org>
#ifdef __ARM_EABI__
# define UNWIND
#else
# define UNWIND @
#endif
@ If the VFP ABI variant (armhf in Debian/Ubuntu) is used, an additional extra 64 bytes
@ are taken up on the stack (the equivalent of the 8 double precision VFP registers)
#ifdef __ARM_PCS_VFP
# define PAD 80
# define DISCARDED 84
#else
# define PAD 16
# define DISCARDED 20
#endif
.file "armhelper.s"
.text
.align 4
.global privateSnippetExecutor
.type privateSnippetExecutor, %function
privateSnippetExecutor:
UNWIND .fnstart @ start of unwinder entry
stmfd sp!, {r0-r3} @ follow other parameters on stack
mov r0, ip @ r0 points to functionoffset/vtable
mov r1, sp @ r1 points to this and params
#ifdef __ARM_PCS_VFP
vpush {d0-d7} @ floating point parameter on stack
#endif
UNWIND .pad #PAD @ throw this data away on exception
@ (see cppuno.cxx:codeSnippet())
stmfd sp!, {r4,lr} @ save return address
@ (r4 pushed to preserve stack alignment)
UNWIND .save {r4,lr} @ restore these regs on exception
bl cpp_vtable_call(PLT)
add sp, sp, #4 @ no need to restore r4 (we didn't touch it)
ldr pc, [sp], #DISCARDED @ return, discarding function arguments
UNWIND .fnend @ end of unwinder entry
.size privateSnippetExecutor, . - privateSnippetExecutor
.section .note.GNU-stack,"",%progbits
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