compiler: introduce __alias(symbol) shortcut

aryabinin · torvalds · commit cb4188ac8e57 · 2015-02-13T21:21:40.000-08:00
To be consistent with other compiler attributes introduce __alias(symbol)
macro expanding into __attribute__((alias(#symbol)))

Signed-off-by: Andrey Ryabinin &lt;a.ryabinin@samsung.com&gt;
Cc: Dmitry Vyukov &lt;dvyukov@google.com&gt;
Cc: Konstantin Serebryany &lt;kcc@google.com&gt;
Cc: Dmitry Chernenkov &lt;dmitryc@google.com&gt;
Signed-off-by: Andrey Konovalov &lt;adech.fo@gmail.com&gt;
Cc: Yuri Gribov &lt;tetra2005@gmail.com&gt;
Cc: Konstantin Khlebnikov &lt;koct9i@gmail.com&gt;
Cc: Sasha Levin &lt;sasha.levin@oracle.com&gt;
Cc: Christoph Lameter &lt;cl@linux.com&gt;
Cc: Joonsoo Kim &lt;iamjoonsoo.kim@lge.com&gt;
Cc: Dave Hansen &lt;dave.hansen@intel.com&gt;
Cc: Andi Kleen &lt;andi@firstfloor.org&gt;
Cc: Ingo Molnar &lt;mingo@elte.hu&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: "H. Peter Anvin" &lt;hpa@zytor.com&gt;
Cc: Christoph Lameter &lt;cl@linux.com&gt;
Cc: Pekka Enberg &lt;penberg@kernel.org&gt;
Cc: David Rientjes &lt;rientjes@google.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
@@ -66,6 +66,7 @@
 #define __deprecated			__attribute__((deprecated))
 #define __packed			__attribute__((packed))
 #define __weak				__attribute__((weak))
+#define __alias(symbol)		__attribute__((alias(#symbol)))
 
 /*
  * it doesn't make sense on ARM (currently the only user of __naked) to trace
