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b7cdc182 | 1 | /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) |
9f36eaed | 2 | * |
2df37e95 | 3 | * lttng/kernel-version.h |
5fa38800 | 4 | * |
7b25fa17 | 5 | * Contains helpers to check kernel version conditions. |
5fa38800 MD |
6 | * |
7 | * Copyright (C) 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
5fa38800 MD |
8 | */ |
9 | ||
9f36eaed MJ |
10 | #ifndef _LTTNG_KERNEL_VERSION_H |
11 | #define _LTTNG_KERNEL_VERSION_H | |
12 | ||
5fa38800 | 13 | #include <linux/version.h> |
9f61c55f | 14 | #include <generated/utsrelease.h> |
5fa38800 | 15 | |
5f4c791e MJ |
16 | #define LTTNG_KERNEL_VERSION(a, b, c) KERNEL_VERSION(a, b, c) |
17 | #define LTTNG_LINUX_VERSION_CODE LINUX_VERSION_CODE | |
18 | ||
7b25fa17 MJ |
19 | /* |
20 | * The following defines are extracted from the toplevel Linux Makefile and | |
21 | * passed on the command line -with '-D'. | |
22 | */ | |
23 | ||
24 | #ifndef LTTNG_LINUX_MAJOR | |
25 | #define LTTNG_LINUX_MAJOR 0 | |
26 | #endif | |
27 | ||
28 | #ifndef LTTNG_LINUX_MINOR | |
29 | #define LTTNG_LINUX_MINOR 0 | |
30 | #endif | |
31 | ||
32 | #ifndef LTTNG_LINUX_PATCH | |
33 | #define LTTNG_LINUX_PATCH 0 | |
34 | #endif | |
35 | ||
36 | /* | |
37 | * Some stable releases have overflowed the 8bits allocated to the sublevel in | |
38 | * the version code. To determine if the current kernel is affected, use the | |
39 | * sublevel version from the Makefile. This is currently true for the 4.4.256 | |
40 | * and 4.9.256 stable releases. | |
41 | * | |
42 | * When the sublevel has overflowed, use the values from the Makefile instead | |
43 | * of LINUX_VERSION_CODE from the kernel headers and allocate 16bits. | |
44 | * Otherwise, keep using the version code from the headers to minimise the | |
45 | * behavior change and avoid regressions. | |
46 | */ | |
47 | #if (LTTNG_LINUX_PATCH >= 256) | |
48 | ||
49 | #define LTTNG_KERNEL_VERSION(a, b, c) \ | |
50 | (((a) << 24) + ((b) << 16) + (c)) | |
51 | ||
52 | #define LTTNG_LINUX_VERSION_CODE \ | |
53 | LTTNG_KERNEL_VERSION(LTTNG_LINUX_MAJOR, LTTNG_LINUX_MINOR, LTTNG_LINUX_PATCH) | |
54 | ||
55 | #else | |
56 | ||
57 | #define LTTNG_KERNEL_VERSION(a, b, c) KERNEL_VERSION(a, b, c) | |
58 | #define LTTNG_LINUX_VERSION_CODE LINUX_VERSION_CODE | |
59 | ||
60 | #endif | |
61 | ||
5fa38800 MD |
62 | /* |
63 | * This macro checks if the kernel version is between the two specified | |
144bbfd5 | 64 | * versions (lower limit inclusive, upper limit exclusive). |
5fa38800 MD |
65 | */ |
66 | #define LTTNG_KERNEL_RANGE(a_low, b_low, c_low, a_high, b_high, c_high) \ | |
5f4c791e MJ |
67 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(a_low, b_low, c_low) && \ |
68 | LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(a_high, b_high, c_high)) | |
5fa38800 | 69 | |
c94ac1ac MJ |
70 | /* Ubuntu */ |
71 | ||
3e5941df | 72 | #define LTTNG_UBUNTU_KERNEL_VERSION(a, b, c, d) \ |
af590311 | 73 | (((LTTNG_KERNEL_VERSION(a, b, c)) << 16) + (d)) |
3e5941df | 74 | |
05732a66 | 75 | #ifdef UTS_UBUNTU_RELEASE_ABI |
3e5941df | 76 | #define LTTNG_UBUNTU_VERSION_CODE \ |
af590311 | 77 | ((LTTNG_LINUX_VERSION_CODE << 16) + UTS_UBUNTU_RELEASE_ABI) |
05732a66 MD |
78 | #else |
79 | #define LTTNG_UBUNTU_VERSION_CODE 0 | |
80 | #endif | |
3e5941df JD |
81 | |
82 | #define LTTNG_UBUNTU_KERNEL_RANGE(a_low, b_low, c_low, d_low, \ | |
83 | a_high, b_high, c_high, d_high) \ | |
05732a66 | 84 | (LTTNG_UBUNTU_VERSION_CODE >= \ |
3e5941df JD |
85 | LTTNG_UBUNTU_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \ |
86 | LTTNG_UBUNTU_VERSION_CODE < \ | |
87 | LTTNG_UBUNTU_KERNEL_VERSION(a_high, b_high, c_high, d_high)) | |
88 | ||
c94ac1ac MJ |
89 | /* Debian */ |
90 | ||
72e6c528 | 91 | #define LTTNG_DEBIAN_KERNEL_VERSION(a, b, c, d, e, f) \ |
5f4c791e | 92 | (((LTTNG_KERNEL_VERSION(a, b, c)) * 1000000ULL) + ((d) * 10000) + ((e) * 100) + (f)) |
72e6c528 | 93 | |
05732a66 | 94 | #ifdef DEBIAN_API_VERSION |
72e6c528 | 95 | #define LTTNG_DEBIAN_VERSION_CODE \ |
5f4c791e | 96 | ((LTTNG_LINUX_VERSION_CODE * 1000000ULL) + DEBIAN_API_VERSION) |
05732a66 MD |
97 | #else |
98 | #define LTTNG_DEBIAN_VERSION_CODE 0 | |
99 | #endif | |
72e6c528 MD |
100 | |
101 | #define LTTNG_DEBIAN_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \ | |
102 | a_high, b_high, c_high, d_high, e_high, f_high) \ | |
05732a66 | 103 | (LTTNG_DEBIAN_VERSION_CODE >= \ |
72e6c528 MD |
104 | LTTNG_DEBIAN_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \ |
105 | LTTNG_DEBIAN_VERSION_CODE < \ | |
106 | LTTNG_DEBIAN_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high)) | |
107 | ||
c94ac1ac | 108 | /* RHEL */ |
f30ae671 | 109 | |
5f4c791e MJ |
110 | #define LTTNG_RHEL_KERNEL_VERSION(a, b, c, d, e, f) \ |
111 | (((LTTNG_KERNEL_VERSION(a, b, c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f)) | |
112 | ||
c94ac1ac | 113 | #ifdef RHEL_API_VERSION |
f30ae671 | 114 | #define LTTNG_RHEL_VERSION_CODE \ |
5f4c791e | 115 | ((LTTNG_LINUX_VERSION_CODE * 10000000ULL) + RHEL_API_VERSION) |
f30ae671 MD |
116 | #else |
117 | #define LTTNG_RHEL_VERSION_CODE 0 | |
118 | #endif | |
119 | ||
c94ac1ac MJ |
120 | #define LTTNG_RHEL_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \ |
121 | a_high, b_high, c_high, d_high, e_high, f_high) \ | |
f30ae671 | 122 | (LTTNG_RHEL_VERSION_CODE >= \ |
c94ac1ac | 123 | LTTNG_RHEL_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \ |
f30ae671 | 124 | LTTNG_RHEL_VERSION_CODE < \ |
c94ac1ac MJ |
125 | LTTNG_RHEL_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high)) |
126 | ||
ce66b486 MJ |
127 | /* SUSE Linux enterprise */ |
128 | ||
129 | #define LTTNG_SLE_KERNEL_VERSION(a, b, c, d, e, f) \ | |
5f4c791e | 130 | (((LTTNG_KERNEL_VERSION(a, b, c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f)) |
ce66b486 MJ |
131 | |
132 | #ifdef SLE_API_VERSION | |
133 | #define LTTNG_SLE_VERSION_CODE \ | |
5f4c791e | 134 | ((LTTNG_LINUX_VERSION_CODE * 10000000ULL) + SLE_API_VERSION) |
ce66b486 MJ |
135 | #else |
136 | #define LTTNG_SLE_VERSION_CODE 0 | |
137 | #endif | |
138 | ||
139 | #define LTTNG_SLE_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \ | |
140 | a_high, b_high, c_high, d_high, e_high, f_high) \ | |
141 | (LTTNG_SLE_VERSION_CODE >= \ | |
142 | LTTNG_SLE_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \ | |
143 | LTTNG_SLE_VERSION_CODE < \ | |
144 | LTTNG_SLE_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high)) | |
145 | ||
e4838da1 LG |
146 | /* Fedora */ |
147 | ||
148 | #define LTTNG_FEDORA_KERNEL_VERSION(a, b, c, d) \ | |
5f4c791e | 149 | (((LTTNG_KERNEL_VERSION(a, b, c)) * 10000ULL) + (d)) |
e4838da1 LG |
150 | |
151 | #ifdef FEDORA_REVISION_VERSION | |
152 | #define LTTNG_FEDORA_VERSION_CODE \ | |
5f4c791e | 153 | ((LTTNG_LINUX_VERSION_CODE * 10000ULL) + FEDORA_REVISION_VERSION) |
e4838da1 LG |
154 | #else |
155 | #define LTTNG_FEDORA_VERSION_CODE 0 | |
156 | #endif | |
157 | ||
158 | #define LTTNG_FEDORA_KERNEL_RANGE(a_low, b_low, c_low, d_low, \ | |
159 | a_high, b_high, c_high, d_high) \ | |
160 | (LTTNG_FEDORA_VERSION_CODE >= \ | |
161 | LTTNG_FEDORA_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \ | |
162 | LTTNG_FEDORA_VERSION_CODE < \ | |
163 | LTTNG_FEDORA_KERNEL_VERSION(a_high, b_high, c_high, d_high)) | |
164 | ||
c94ac1ac | 165 | /* RT patch */ |
f30ae671 | 166 | |
b4c8e4d3 | 167 | #define LTTNG_RT_KERNEL_VERSION(a, b, c, d) \ |
5f4c791e | 168 | (((LTTNG_KERNEL_VERSION(a, b, c)) << 8) + (d)) |
b4c8e4d3 MJ |
169 | |
170 | #ifdef RT_PATCH_VERSION | |
171 | #define LTTNG_RT_VERSION_CODE \ | |
5f4c791e | 172 | ((LTTNG_LINUX_VERSION_CODE << 8) + RT_PATCH_VERSION) |
b4c8e4d3 MJ |
173 | #else |
174 | #define LTTNG_RT_VERSION_CODE 0 | |
175 | #endif | |
176 | ||
177 | #define LTTNG_RT_KERNEL_RANGE(a_low, b_low, c_low, d_low, \ | |
178 | a_high, b_high, c_high, d_high) \ | |
179 | (LTTNG_RT_VERSION_CODE >= \ | |
180 | LTTNG_RT_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \ | |
181 | LTTNG_RT_VERSION_CODE < \ | |
182 | LTTNG_RT_KERNEL_VERSION(a_high, b_high, c_high, d_high)) | |
183 | ||
5fa38800 | 184 | #endif /* _LTTNG_KERNEL_VERSION_H */ |