michael@0: /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0:         .section ".text"
michael@0:             .globl _NS_InvokeByIndex
michael@0:             .type  _NS_InvokeByIndex,@function
michael@0: 
michael@0: /*
michael@0:  * _NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex,
michael@0:  *                   uint32_t paramCount, nsXPTCVariant* params)
michael@0:  */
michael@0: 
michael@0: _NS_InvokeByIndex:
michael@0:             # set up frame
michael@0:             stp         x29, x30, [sp,#-32]!
michael@0:             mov         x29, sp
michael@0:             stp         x19, x20, [sp,#16]
michael@0: 
michael@0:             # save methodIndex across function calls
michael@0:             mov         w20, w1
michael@0: 
michael@0:             # end of stack area passed to invoke_copy_to_stack
michael@0:             mov         x1, sp
michael@0: 
michael@0:             # assume 8 bytes of stack for each argument with 16-byte alignment
michael@0:             add         w19, w2, #1
michael@0:             and         w19, w19, #0xfffffffe
michael@0:             sub         sp, sp, w19, uxth #3
michael@0: 
michael@0:             # temporary place to store args passed in r0-r7,v0-v7
michael@0:             sub         sp, sp, #128
michael@0: 
michael@0:             # save 'that' on stack
michael@0:             str         x0, [sp]
michael@0: 
michael@0:             # start of stack area passed to invoke_copy_to_stack
michael@0:             mov         x0, sp
michael@0:             bl          invoke_copy_to_stack
michael@0: 
michael@0:             # load arguments passed in r0-r7
michael@0:             ldp         x6, x7, [sp, #48]
michael@0:             ldp         x4, x5, [sp, #32]
michael@0:             ldp         x2, x3, [sp, #16]
michael@0:             ldp         x0, x1, [sp],#64
michael@0: 
michael@0:             # load arguments passed in v0-v7
michael@0:             ldp         d6, d7, [sp, #48]
michael@0:             ldp         d4, d5, [sp, #32]
michael@0:             ldp         d2, d3, [sp, #16]
michael@0:             ldp         d0, d1, [sp],#64
michael@0: 
michael@0:             # call the method
michael@0:             ldr         x16, [x0]
michael@0:             add         x16, x16, w20, uxth #3
michael@0:             ldr         x16, [x16]
michael@0:             blr         x16
michael@0: 
michael@0:             add         sp, sp, w19, uxth #3
michael@0:             ldp         x19, x20, [sp,#16]
michael@0:             ldp         x29, x30, [sp],#32
michael@0:             ret
michael@0: 
michael@0:             .size _NS_InvokeByIndex, . - _NS_InvokeByIndex
michael@0: 
michael@0: