blob: e3ff0579a53cb8a732fd3f70a98671e7a2a87b4e (
plain)
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
46
47
48
49
50
51
52
53
54
|
// 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.
#ifndef GVISOR_TEST_SYSCALLS_LINUX_RSEQ_UAPI_H_
#define GVISOR_TEST_SYSCALLS_LINUX_RSEQ_UAPI_H_
// User-kernel ABI for restartable sequences.
// Standard types.
//
// N.B. This header will be included in targets that do have the standard
// library, so we can't shadow the standard type names.
using __u32 = __UINT32_TYPE__;
using __u64 = __UINT64_TYPE__;
#ifdef __x86_64__
// Syscall numbers.
constexpr int kRseqSyscall = 334;
#else
#error "Unknown architecture"
#endif // __x86_64__
struct rseq_cs {
__u32 version;
__u32 flags;
__u64 start_ip;
__u64 post_commit_offset;
__u64 abort_ip;
} __attribute__((aligned(4 * sizeof(__u64))));
// N.B. alignment is enforced by the kernel.
struct rseq {
__u32 cpu_id_start;
__u32 cpu_id;
struct rseq_cs* rseq_cs;
__u32 flags;
} __attribute__((aligned(4 * sizeof(__u64))));
constexpr int kRseqFlagUnregister = 1 << 0;
constexpr int kRseqCPUIDUninitialized = -1;
#endif // GVISOR_TEST_SYSCALLS_LINUX_RSEQ_UAPI_H_
|
