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# Copyright (C) 2019 Intel Corporation. All rights reserved.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
.text
.align 2
.globl invokeNative
invokeNative:
# %rcx func_ptr
# %rdx argv
# %r8 n_stacks
push %rbp
mov %rsp, %rbp
mov %rcx, %r10 # func_ptr
mov %rdx, %rax # argv
mov %r8, %rcx # n_stacks
# fill all fp args
movsd 0(%rax), %xmm0
movsd 8(%rax), %xmm1
movsd 16(%rax), %xmm2
movsd 24(%rax), %xmm3
# check for stack args
cmp $0, %rcx
jz cycle_end
mov %rsp, %rdx
and $15, %rdx
jz no_abort
int $3
no_abort:
mov %rcx, %rdx
and $1, %rdx
shl $3, %rdx
sub %rdx, %rsp
# store stack args
lea 56(%rax, %rcx, 8), %r9
sub %rsp, %r9 # offset
cycle:
push (%rsp, %r9)
loop cycle
cycle_end:
mov 32(%rax), %rcx
mov 40(%rax), %rdx
mov 48(%rax), %r8
mov 56(%rax), %r9
sub $32, %rsp # shadow space
call *%r10
leave
ret
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