X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=cds%2Fcompiler%2Fgcc%2Fdefs.h;h=5c4fb8a3d03f32ce7ea9634b8a24eb98b86da730;hb=40a5453909484139fc270121370575632c8e9e5c;hp=386c6237b2e2f03ed06683f61132d2f918d1dd9f;hpb=82d022ac4979b71202ba70f5d0339f34ceb023c8;p=libcds.git

diff --git a/cds/compiler/gcc/defs.h b/cds/compiler/gcc/defs.h
index 386c6237..5c4fb8a3 100644
--- a/cds/compiler/gcc/defs.h
+++ b/cds/compiler/gcc/defs.h
@@ -1,4 +1,32 @@
-//$$CDS-header$$
+/*
+    This file is a part of libcds - Concurrent Data Structures library
+
+    (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2016
+
+    Source code repo: http://github.com/khizmax/libcds/
+    Download: http://sourceforge.net/projects/libcds/files/
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this
+      list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+    OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
 
 #ifndef CDSLIB_COMPILER_GCC_DEFS_H
 #define CDSLIB_COMPILER_GCC_DEFS_H
@@ -56,6 +84,37 @@
 #define CDS_CLASS_ALIGNMENT(n)  __attribute__ ((aligned (n)))
 #define CDS_DATA_ALIGNMENT(n)   __attribute__ ((aligned (n)))
 
+// Attributes
+#if CDS_COMPILER_VERSION >= 40900
+#   if __cplusplus < 201103
+#       define CDS_DEPRECATED( reason ) __attribute__((deprecated( reason )))
+#   elif __cplusplus == 201103 // C++11
+#       define CDS_DEPRECATED( reason ) [[gnu::deprecated(reason)]]
+#   else  // C++14
+#       define CDS_DEPRECATED( reason ) [[deprecated(reason)]]
+#   endif
+#else
+#   define CDS_DEPRECATED( reason ) __attribute__((deprecated( reason )))
+#endif
+
+// likely/unlikely
+
+#define cds_likely( expr )   __builtin_expect( !!( expr ), 1 )
+#define cds_unlikely( expr ) __builtin_expect( !!( expr ), 0 )
+
+// double-width CAS support
+// note: gcc-4.8 does not support double-word atomics
+#if CDS_COMPILER_VERSION >= 40900
+#   if CDS_BUILD_BITS == 64
+#       ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16
+#           define CDS_DCAS_SUPPORT
+#       endif
+#   else
+#       ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
+#           define CDS_DCAS_SUPPORT
+#       endif
+#   endif
+#endif
 
 #include <cds/compiler/gcc/compiler_barriers.h>