1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// Copyright 2019 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
.text
.align 4
.type _start,@function
.globl _start
_start:
movq %rsp,%rdi
call __init
hlt
.size _start,.-_start
.section .note.GNU-stack,"",@progbits
.text
.globl raw_syscall
.type raw_syscall, @function
raw_syscall:
mov %rdi,%rax // syscall #
mov %rsi,%rdi // arg0
mov %rdx,%rsi // arg1
mov %rcx,%rdx // arg2
mov %r8,%r10 // arg3 (goes in r10 instead of rcx for system calls)
mov %r9,%r8 // arg4
mov 0x8(%rsp),%r9 // arg5
syscall
ret
.size raw_syscall,.-raw_syscall
.section .note.GNU-stack,"",@progbits
|