1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_sparc_openbsd.s Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,55 @@
1.4 +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + *
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +/* Platform specific code to invoke XPCOM methods on native objects */
1.11 + .global XPTC_InvokeByIndex
1.12 +/*
1.13 + XPTC_InvokeByIndex(nsISupports* that, uint32_t methodIndex,
1.14 + uint32_t paramCount, nsXPTCVariant* params);
1.15 +
1.16 +*/
1.17 +XPTC_InvokeByIndex:
1.18 + save %sp,-(64 + 16),%sp ! room for the register window and
1.19 + ! struct pointer, rounded up to 0 % 16
1.20 + mov %i2,%o0 ! paramCount
1.21 + call invoke_count_words ! returns the required stack size in %o0
1.22 + mov %i3,%o1 ! params
1.23 +
1.24 + sll %o0,2,%l0 ! number of bytes
1.25 + sub %sp,%l0,%sp ! create the additional stack space
1.26 +
1.27 + mov %sp,%o0 ! pointer for copied args
1.28 + add %o0,72,%o0 ! step past the register window, the
1.29 + ! struct result pointer and the 'this' slot
1.30 + mov %i2,%o1 ! paramCount
1.31 + call invoke_copy_to_stack
1.32 + mov %i3,%o2 ! params
1.33 +!
1.34 +! calculate the target address from the vtable
1.35 +!
1.36 + add %i1,1,%i1 ! vTable is zero-based, index is 1 based (?)
1.37 + ld [%i0],%l1 ! *that --> vTable
1.38 + sll %i1,3,%i1
1.39 + add %i1,%l1,%l1 ! vTable[index * 8], l1 now points to vTable entry
1.40 + lduh [%l1],%l0 ! this adjustor
1.41 + sll %l0,16,%l0 ! sign extend to 32 bits
1.42 + sra %l0,16,%l0
1.43 + add %l0,%i0,%i0 ! adjust this
1.44 + ld [%l1 + 4],%l0 ! target address
1.45 +
1.46 +.L5: ld [%sp + 88],%o5
1.47 +.L4: ld [%sp + 84],%o4
1.48 +.L3: ld [%sp + 80],%o3
1.49 +.L2: ld [%sp + 76],%o2
1.50 +.L1: ld [%sp + 72],%o1
1.51 +.L0:
1.52 + jmpl %l0,%o7 ! call the routine
1.53 +! always have a 'this', from the incoming 'that'
1.54 + mov %i0,%o0
1.55 +
1.56 + mov %o0,%i0 ! propagate return value
1.57 + ret
1.58 + restore
