Namespace kernel version macros

[lttng-modules.git] / lttng-kernel-version.h

diff --git a/lttng-kernel-version.h b/lttng-kernel-version.h
index 6b545dbbe28997d0a22ac7e89cbf3d507d0acd96..65281b2e8e2912f876143f155ac30e4ee8e7d692 100644 (file)
--- a/lttng-kernel-version.h
+++ b/lttng-kernel-version.h
@@ -2,7 +2,7 @@
  *
  * lttng-kernel-version.h
  *
- * Contains helpers to check more complex kernel version conditions.
+ * Contains helpers to check kernel version conditions.
  *
  * Copyright (C) 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  */
@@ -12,28 +12,31 @@
 
 #include <linux/version.h>
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
+#define LTTNG_KERNEL_VERSION(a, b, c) KERNEL_VERSION(a, b, c)
+#define LTTNG_LINUX_VERSION_CODE LINUX_VERSION_CODE
+
+#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,33))
 #include <generated/utsrelease.h>
-#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)) */
+#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,33)) */
 #include <linux/utsrelease.h>
-#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)) */
+#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,33)) */
 
 /*
  * This macro checks if the kernel version is between the two specified
  * versions (lower limit inclusive, upper limit exclusive).
  */
 #define LTTNG_KERNEL_RANGE(a_low, b_low, c_low, a_high, b_high, c_high) \
-       (LINUX_VERSION_CODE >= KERNEL_VERSION(a_low, b_low, c_low) && \
-        LINUX_VERSION_CODE < KERNEL_VERSION(a_high, b_high, c_high))
+       (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(a_low, b_low, c_low) && \
+        LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(a_high, b_high, c_high))
 
 /* Ubuntu */
 
 #define LTTNG_UBUNTU_KERNEL_VERSION(a, b, c, d) \
-       (((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
+       (((LTTNG_KERNEL_VERSION(a, b, c)) << 8) + (d))
 
 #ifdef UTS_UBUNTU_RELEASE_ABI
 #define LTTNG_UBUNTU_VERSION_CODE \
-       ((LINUX_VERSION_CODE << 8) + UTS_UBUNTU_RELEASE_ABI)
+       ((LTTNG_LINUX_VERSION_CODE << 8) + UTS_UBUNTU_RELEASE_ABI)
 #else
 #define LTTNG_UBUNTU_VERSION_CODE      0
 #endif
@@ -48,11 +51,11 @@
 /* Debian */
 
 #define LTTNG_DEBIAN_KERNEL_VERSION(a, b, c, d, e, f) \
-       (((((a) << 16) + ((b) << 8) + (c)) * 1000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
+       (((LTTNG_KERNEL_VERSION(a, b, c)) * 1000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
 
 #ifdef DEBIAN_API_VERSION
 #define LTTNG_DEBIAN_VERSION_CODE \
-       ((LINUX_VERSION_CODE * 1000000ULL) + DEBIAN_API_VERSION)
+       ((LTTNG_LINUX_VERSION_CODE * 1000000ULL) + DEBIAN_API_VERSION)
 #else
 #define LTTNG_DEBIAN_VERSION_CODE      0
 #endif
@@ -65,13 +68,13 @@
                LTTNG_DEBIAN_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))
 
 #define LTTNG_RHEL_KERNEL_VERSION(a, b, c, d, e, f) \
-       (((((a) << 16) + ((b) << 8) + (c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
+       (((LTTNG_KERNEL_VERSION(a, b, c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
 
 /* RHEL */
 
 #ifdef RHEL_API_VERSION
 #define LTTNG_RHEL_VERSION_CODE \
-       ((LINUX_VERSION_CODE * 10000000ULL) + RHEL_API_VERSION)
+       ((LTTNG_LINUX_VERSION_CODE * 10000000ULL) + RHEL_API_VERSION)
 #else
 #define LTTNG_RHEL_VERSION_CODE                0
 #endif
@@ -86,11 +89,11 @@
 /* SUSE Linux enterprise */
 
 #define LTTNG_SLE_KERNEL_VERSION(a, b, c, d, e, f) \
-       (((((a) << 16) + ((b) << 8) + (c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
+       (((LTTNG_KERNEL_VERSION(a, b, c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
 
 #ifdef SLE_API_VERSION
 #define LTTNG_SLE_VERSION_CODE \
-       ((LINUX_VERSION_CODE * 10000000ULL) + SLE_API_VERSION)
+       ((LTTNG_LINUX_VERSION_CODE * 10000000ULL) + SLE_API_VERSION)
 #else
 #define LTTNG_SLE_VERSION_CODE         0
 #endif
@@ -105,11 +108,11 @@
 /* Fedora */
 
 #define LTTNG_FEDORA_KERNEL_VERSION(a, b, c, d) \
-        (((((a) << 16) + ((b) << 8) + (c)) * 10000ULL) + (d))
+        (((LTTNG_KERNEL_VERSION(a, b, c)) * 10000ULL) + (d))
 
 #ifdef FEDORA_REVISION_VERSION
 #define LTTNG_FEDORA_VERSION_CODE \
-        ((LINUX_VERSION_CODE * 10000ULL) + FEDORA_REVISION_VERSION)
+        ((LTTNG_LINUX_VERSION_CODE * 10000ULL) + FEDORA_REVISION_VERSION)
 #else
 #define LTTNG_FEDORA_VERSION_CODE         0
 #endif
@@ -124,11 +127,11 @@
 /* RT patch */
 
 #define LTTNG_RT_KERNEL_VERSION(a, b, c, d) \
-       (((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
+       (((LTTNG_KERNEL_VERSION(a, b, c)) << 8) + (d))
 
 #ifdef RT_PATCH_VERSION
 #define LTTNG_RT_VERSION_CODE \
-       ((LINUX_VERSION_CODE << 8) + RT_PATCH_VERSION)
+       ((LTTNG_LINUX_VERSION_CODE << 8) + RT_PATCH_VERSION)
 #else
 #define LTTNG_RT_VERSION_CODE  0
 #endif