The Tor Browser / file comparison
comparison: xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_aarch64.s
xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_aarch64.s
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:c56f9608f551 |
|---|---|
| 1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 .section ".text" | |
| 7 .globl _NS_InvokeByIndex | |
| 8 .type _NS_InvokeByIndex,@function | |
| 9 | |
| 10 /* | |
| 11 * _NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex, | |
| 12 * uint32_t paramCount, nsXPTCVariant* params) | |
| 13 */ | |
| 14 | |
| 15 _NS_InvokeByIndex: | |
| 16 # set up frame | |
| 17 stp x29, x30, [sp,#-32]! | |
| 18 mov x29, sp | |
| 19 stp x19, x20, [sp,#16] | |
| 20 | |
| 21 # save methodIndex across function calls | |
| 22 mov w20, w1 | |
| 23 | |
| 24 # end of stack area passed to invoke_copy_to_stack | |
| 25 mov x1, sp | |
| 26 | |
| 27 # assume 8 bytes of stack for each argument with 16-byte alignment | |
| 28 add w19, w2, #1 | |
| 29 and w19, w19, #0xfffffffe | |
| 30 sub sp, sp, w19, uxth #3 | |
| 31 | |
| 32 # temporary place to store args passed in r0-r7,v0-v7 | |
| 33 sub sp, sp, #128 | |
| 34 | |
| 35 # save 'that' on stack | |
| 36 str x0, [sp] | |
| 37 | |
| 38 # start of stack area passed to invoke_copy_to_stack | |
| 39 mov x0, sp | |
| 40 bl invoke_copy_to_stack | |
| 41 | |
| 42 # load arguments passed in r0-r7 | |
| 43 ldp x6, x7, [sp, #48] | |
| 44 ldp x4, x5, [sp, #32] | |
| 45 ldp x2, x3, [sp, #16] | |
| 46 ldp x0, x1, [sp],#64 | |
| 47 | |
| 48 # load arguments passed in v0-v7 | |
| 49 ldp d6, d7, [sp, #48] | |
| 50 ldp d4, d5, [sp, #32] | |
| 51 ldp d2, d3, [sp, #16] | |
| 52 ldp d0, d1, [sp],#64 | |
| 53 | |
| 54 # call the method | |
| 55 ldr x16, [x0] | |
| 56 add x16, x16, w20, uxth #3 | |
| 57 ldr x16, [x16] | |
| 58 blr x16 | |
| 59 | |
| 60 add sp, sp, w19, uxth #3 | |
| 61 ldp x19, x20, [sp,#16] | |
| 62 ldp x29, x30, [sp],#32 | |
| 63 ret | |
| 64 | |
| 65 .size _NS_InvokeByIndex, . - _NS_InvokeByIndex | |
| 66 | |
| 67 |
