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
  15 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
  16 #include <generated/utsrelease.h>
  17 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)) */
  18 #include <linux/utsrelease.h>
  19 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)) */
  20
  21 /*
  22  * This macro checks if the kernel version is between the two specified
  23  * versions (lower limit inclusive, upper limit exclusive).
  24  */
  25 #define LTTNG_KERNEL_RANGE(a_low, b_low, c_low, a_high, b_high, c_high) \
  26         (LINUX_VERSION_CODE >= KERNEL_VERSION(a_low, b_low, c_low) && \
  27          LINUX_VERSION_CODE < KERNEL_VERSION(a_high, b_high, c_high))
  28
  29 /* Ubuntu */
  30
  31 #define LTTNG_UBUNTU_KERNEL_VERSION(a, b, c, d) \
  32         (((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
  33
  34 #ifdef UTS_UBUNTU_RELEASE_ABI
  35 #define LTTNG_UBUNTU_VERSION_CODE \
  36         ((LINUX_VERSION_CODE << 8) + UTS_UBUNTU_RELEASE_ABI)
  37 #else
  38 #define LTTNG_UBUNTU_VERSION_CODE       0
  39 #endif
  40
  41 #define LTTNG_UBUNTU_KERNEL_RANGE(a_low, b_low, c_low, d_low, \
  42                 a_high, b_high, c_high, d_high) \
  43         (LTTNG_UBUNTU_VERSION_CODE >= \
  44                 LTTNG_UBUNTU_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \
  45                 LTTNG_UBUNTU_VERSION_CODE < \
  46                 LTTNG_UBUNTU_KERNEL_VERSION(a_high, b_high, c_high, d_high))
  47
  48 /* Debian */
  49
  50 #define LTTNG_DEBIAN_KERNEL_VERSION(a, b, c, d, e, f) \
  51         (((((a) << 16) + ((b) << 8) + (c)) * 1000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
  52
  53 #ifdef DEBIAN_API_VERSION
  54 #define LTTNG_DEBIAN_VERSION_CODE \
  55         ((LINUX_VERSION_CODE * 1000000ULL) + DEBIAN_API_VERSION)
  56 #else
  57 #define LTTNG_DEBIAN_VERSION_CODE       0
  58 #endif
  59
  60 #define LTTNG_DEBIAN_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \
  61                 a_high, b_high, c_high, d_high, e_high, f_high) \
  62         (LTTNG_DEBIAN_VERSION_CODE >= \
  63                 LTTNG_DEBIAN_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \
  64                 LTTNG_DEBIAN_VERSION_CODE < \
  65                 LTTNG_DEBIAN_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))
  66
  67 #define LTTNG_RHEL_KERNEL_VERSION(a, b, c, d, e, f) \
  68         (((((a) << 16) + ((b) << 8) + (c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
  69
  70 /* RHEL */
  71
  72 #ifdef RHEL_API_VERSION
  73 #define LTTNG_RHEL_VERSION_CODE \
  74         ((LINUX_VERSION_CODE * 10000000ULL) + RHEL_API_VERSION)
  75 #else
  76 #define LTTNG_RHEL_VERSION_CODE         0
  77 #endif
  78
  79 #define LTTNG_RHEL_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \
  80                 a_high, b_high, c_high, d_high, e_high, f_high) \
  81         (LTTNG_RHEL_VERSION_CODE >= \
  82                 LTTNG_RHEL_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \
  83                 LTTNG_RHEL_VERSION_CODE < \
  84                 LTTNG_RHEL_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))
  85
  86 /* SUSE Linux enterprise */
  87
  88 #define LTTNG_SLE_KERNEL_VERSION(a, b, c, d, e, f) \
  89         (((((a) << 16) + ((b) << 8) + (c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
  90
  91 #ifdef SLE_API_VERSION
  92 #define LTTNG_SLE_VERSION_CODE \
  93         ((LINUX_VERSION_CODE * 10000000ULL) + SLE_API_VERSION)
  94 #else
  95 #define LTTNG_SLE_VERSION_CODE  0
  96 #endif
  97
  98 #define LTTNG_SLE_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \
  99                 a_high, b_high, c_high, d_high, e_high, f_high) \
 100         (LTTNG_SLE_VERSION_CODE >= \
 101                 LTTNG_SLE_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \
 102                 LTTNG_SLE_VERSION_CODE < \
 103                 LTTNG_SLE_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))
 104
 105 /* Fedora */
 106
 107 #define LTTNG_FEDORA_KERNEL_VERSION(a, b, c, d) \
 108         (((((a) << 16) + ((b) << 8) + (c)) * 10000ULL) + (d))
 109
 110 #ifdef FEDORA_REVISION_VERSION
 111 #define LTTNG_FEDORA_VERSION_CODE \
 112         ((LINUX_VERSION_CODE * 10000ULL) + FEDORA_REVISION_VERSION)
 113 #else
 114 #define LTTNG_FEDORA_VERSION_CODE         0
 115 #endif
 116
 117 #define LTTNG_FEDORA_KERNEL_RANGE(a_low, b_low, c_low, d_low, \
 118                 a_high, b_high, c_high, d_high) \
 119         (LTTNG_FEDORA_VERSION_CODE >= \
 120                 LTTNG_FEDORA_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \
 121                 LTTNG_FEDORA_VERSION_CODE < \
 122                 LTTNG_FEDORA_KERNEL_VERSION(a_high, b_high, c_high, d_high))
 123
 124 /* RT patch */
 125
 126 #define LTTNG_RT_KERNEL_VERSION(a, b, c, d) \
 127         (((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
 128
 129 #ifdef RT_PATCH_VERSION
 130 #define LTTNG_RT_VERSION_CODE \
 131         ((LINUX_VERSION_CODE << 8) + RT_PATCH_VERSION)
 132 #else
 133 #define LTTNG_RT_VERSION_CODE   0
 134 #endif
 135
 136 #define LTTNG_RT_KERNEL_RANGE(a_low, b_low, c_low, d_low, \
 137                 a_high, b_high, c_high, d_high) \
 138         (LTTNG_RT_VERSION_CODE >= \
 139                 LTTNG_RT_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \
 140                 LTTNG_RT_VERSION_CODE < \
 141                 LTTNG_RT_KERNEL_VERSION(a_high, b_high, c_high, d_high))
 142
 143 #endif /* _LTTNG_KERNEL_VERSION_H */