lttng-kernel-version.h

   1 /* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
   2  *
   3  * lttng-kernel-version.h
   4  *
   5  * Contains helpers to check more complex kernel version conditions.
   6  *
   7  * Copyright (C) 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   8  */
   9
  10 #ifndef _LTTNG_KERNEL_VERSION_H
  11 #define _LTTNG_KERNEL_VERSION_H
  12
  13 #include <linux/version.h>
  14 #include <generated/utsrelease.h>
  15
  16 /*
  17  * This macro checks if the kernel version is between the two specified
  18  * versions (lower limit inclusive, upper limit exclusive).
  19  */
  20 #define LTTNG_KERNEL_RANGE(a_low, b_low, c_low, a_high, b_high, c_high) \
  21         (LINUX_VERSION_CODE >= KERNEL_VERSION(a_low, b_low, c_low) && \
  22          LINUX_VERSION_CODE < KERNEL_VERSION(a_high, b_high, c_high))
  23
  24 /* Ubuntu */
  25
  26 #define LTTNG_UBUNTU_KERNEL_VERSION(a, b, c, d) \
  27         (((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
  28
  29 #ifdef UTS_UBUNTU_RELEASE_ABI
  30 #define LTTNG_UBUNTU_VERSION_CODE \
  31         ((LINUX_VERSION_CODE << 8) + UTS_UBUNTU_RELEASE_ABI)
  32 #else
  33 #define LTTNG_UBUNTU_VERSION_CODE       0
  34 #endif
  35
  36 #define LTTNG_UBUNTU_KERNEL_RANGE(a_low, b_low, c_low, d_low, \
  37                 a_high, b_high, c_high, d_high) \
  38         (LTTNG_UBUNTU_VERSION_CODE >= \
  39                 LTTNG_UBUNTU_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \
  40                 LTTNG_UBUNTU_VERSION_CODE < \
  41                 LTTNG_UBUNTU_KERNEL_VERSION(a_high, b_high, c_high, d_high))
  42
  43 /* Debian */
  44
  45 #define LTTNG_DEBIAN_KERNEL_VERSION(a, b, c, d, e, f) \
  46         (((((a) << 16) + ((b) << 8) + (c)) * 1000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
  47
  48 #ifdef DEBIAN_API_VERSION
  49 #define LTTNG_DEBIAN_VERSION_CODE \
  50         ((LINUX_VERSION_CODE * 1000000ULL) + DEBIAN_API_VERSION)
  51 #else
  52 #define LTTNG_DEBIAN_VERSION_CODE       0
  53 #endif
  54
  55 #define LTTNG_DEBIAN_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \
  56                 a_high, b_high, c_high, d_high, e_high, f_high) \
  57         (LTTNG_DEBIAN_VERSION_CODE >= \
  58                 LTTNG_DEBIAN_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \
  59                 LTTNG_DEBIAN_VERSION_CODE < \
  60                 LTTNG_DEBIAN_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))
  61
  62 #define LTTNG_RHEL_KERNEL_VERSION(a, b, c, d, e, f) \
  63         (((((a) << 16) + ((b) << 8) + (c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
  64
  65 /* RHEL */
  66
  67 #ifdef RHEL_API_VERSION
  68 #define LTTNG_RHEL_VERSION_CODE \
  69         ((LINUX_VERSION_CODE * 10000000ULL) + RHEL_API_VERSION)
  70 #else
  71 #define LTTNG_RHEL_VERSION_CODE         0
  72 #endif
  73
  74 #define LTTNG_RHEL_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \
  75                 a_high, b_high, c_high, d_high, e_high, f_high) \
  76         (LTTNG_RHEL_VERSION_CODE >= \
  77                 LTTNG_RHEL_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \
  78                 LTTNG_RHEL_VERSION_CODE < \
  79                 LTTNG_RHEL_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))
  80
  81 /* SUSE Linux enterprise */
  82
  83 #define LTTNG_SLE_KERNEL_VERSION(a, b, c, d, e, f) \
  84         (((((a) << 16) + ((b) << 8) + (c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
  85
  86 #ifdef SLE_API_VERSION
  87 #define LTTNG_SLE_VERSION_CODE \
  88         ((LINUX_VERSION_CODE * 10000000ULL) + SLE_API_VERSION)
  89 #else
  90 #define LTTNG_SLE_VERSION_CODE  0
  91 #endif
  92
  93 #define LTTNG_SLE_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \
  94                 a_high, b_high, c_high, d_high, e_high, f_high) \
  95         (LTTNG_SLE_VERSION_CODE >= \
  96                 LTTNG_SLE_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \
  97                 LTTNG_SLE_VERSION_CODE < \
  98                 LTTNG_SLE_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))
  99
 100 /* Fedora */
 101
 102 #define LTTNG_FEDORA_KERNEL_VERSION(a, b, c, d) \
 103         (((((a) << 16) + ((b) << 8) + (c)) * 10000ULL) + (d))
 104
 105 #ifdef FEDORA_REVISION_VERSION
 106 #define LTTNG_FEDORA_VERSION_CODE \
 107         ((LINUX_VERSION_CODE * 10000ULL) + FEDORA_REVISION_VERSION)
 108 #else
 109 #define LTTNG_FEDORA_VERSION_CODE         0
 110 #endif
 111
 112 #define LTTNG_FEDORA_KERNEL_RANGE(a_low, b_low, c_low, d_low, \
 113                 a_high, b_high, c_high, d_high) \
 114         (LTTNG_FEDORA_VERSION_CODE >= \
 115                 LTTNG_FEDORA_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \
 116                 LTTNG_FEDORA_VERSION_CODE < \
 117                 LTTNG_FEDORA_KERNEL_VERSION(a_high, b_high, c_high, d_high))
 118
 119 /* RT patch */
 120
 121 #define LTTNG_RT_KERNEL_VERSION(a, b, c, d) \
 122         (((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
 123
 124 #ifdef RT_PATCH_VERSION
 125 #define LTTNG_RT_VERSION_CODE \
 126         ((LINUX_VERSION_CODE << 8) + RT_PATCH_VERSION)
 127 #else
 128 #define LTTNG_RT_VERSION_CODE   0
 129 #endif
 130
 131 #define LTTNG_RT_KERNEL_RANGE(a_low, b_low, c_low, d_low, \
 132                 a_high, b_high, c_high, d_high) \
 133         (LTTNG_RT_VERSION_CODE >= \
 134                 LTTNG_RT_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \
 135                 LTTNG_RT_VERSION_CODE < \
 136                 LTTNG_RT_KERNEL_VERSION(a_high, b_high, c_high, d_high))
 137
 138 #endif /* _LTTNG_KERNEL_VERSION_H */