kernctl commands to extract the stream instance id

[lttng-tools.git] / src / common / macros.h

diff --git a/src/common/macros.h b/src/common/macros.h
index 1771d236c2daa3eeea5a807bef5ddc83cbb6d677..308d3d57a14d5ff9ad7911383af9f40f0477c4da 100644 (file)
--- a/src/common/macros.h
+++ b/src/common/macros.h
@@ -46,7 +46,11 @@
 /*
  * Memory allocation zeroed
  */
-#define zmalloc(x) calloc(1, x)
+static inline
+void *zmalloc(size_t len)
+{
+       return calloc(1, len);
+}
 
 #ifndef ARRAY_SIZE
 #define ARRAY_SIZE(array)   (sizeof(array) / (sizeof((array)[0])))
@@ -56,6 +60,10 @@
 #define max(a, b) ((a) > (b) ? (a) : (b))
 #endif
 
+#ifndef max_t
+#define max_t(type, a, b)      ((type) max(a, b))
+#endif
+
 #ifndef min
 #define min(a, b) ((a) < (b) ? (a) : (b))
 #endif
@@ -64,4 +72,8 @@
 #define LTTNG_PACKED __attribute__((__packed__))
 #endif
 
+#ifndef LTTNG_HIDDEN
+#define LTTNG_HIDDEN __attribute__((visibility("hidden")))
+#endif
+
 #endif /* _MACROS_H */