X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=src%2Fcommon%2Fmacros.h;h=9637a383013629baf868dfca60dc15a65da05757;hb=1da7b8633e51517a4daf5a0d252595e936084338;hp=0e11d3c7ac2f8179ea98bda74293c91158d6b2c2;hpb=639082d2871a0cd0cca3d77fd72fb51002f0c4bf;p=lttng-tools.git

diff --git a/src/common/macros.h b/src/common/macros.h
index 0e11d3c7a..9637a3830 100644
--- a/src/common/macros.h
+++ b/src/common/macros.h
@@ -63,7 +63,7 @@ void *zmalloc(size_t len)
 #endif
 
 #ifndef max_t
-#define max_t(type, a, b)	((type) max(a, b))
+#define max_t(type, a, b)	max((type) a, (type) b)
 #endif
 
 #ifndef min
@@ -74,10 +74,19 @@ void *zmalloc(size_t len)
 #define LTTNG_PACKED __attribute__((__packed__))
 #endif
 
-#ifndef LTTNG_HIDDEN
+/*
+ * LTTNG_HIDDEN: set the hidden attribute for internal functions
+ * On Windows, symbols are local unless explicitly exported,
+ * see https://gcc.gnu.org/wiki/Visibility
+ */
+#if defined(_WIN32) || defined(__CYGWIN__)
+#define LTTNG_HIDDEN
+#else
 #define LTTNG_HIDDEN __attribute__((visibility("hidden")))
 #endif
 
+#define member_sizeof(type, field)	sizeof(((type *) 0)->field)
+
 /*
  * lttng_strncpy returns 0 on success, or nonzero on failure.
  * It checks that the @src string fits into @dst_len before performing