X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Falign.h;h=c8d9d51766906e15cfe444258778872e0a5ad143;hb=546699de452c27c8687a9c4e522359079ef5e4fa;hp=ed353206d1ad03e3d1286414f604041f80538037;hpb=d575a7f8b451189ba011444a886aa1147f419f4d;p=lttng-tools.git

diff --git a/src/common/align.h b/src/common/align.h
index ed353206d..c8d9d5176 100644
--- a/src/common/align.h
+++ b/src/common/align.h
@@ -35,6 +35,12 @@
 #define ALIGN(v, align)		__ALIGN_MASK(v, (__typeof__(v)) (align) - 1)
 #endif
 
+#define __ALIGN_FLOOR_MASK(v, mask)	((v) & ~(mask))
+
+#ifndef ALIGN_FLOOR
+#define ALIGN_FLOOR(v, align)	__ALIGN_FLOOR_MASK(v, (__typeof__(v)) (align) - 1)
+#endif
+
 #define PAGE_ALIGN(addr)	ALIGN(addr, PAGE_SIZE)
 
 /**