svn commit: r269997 - projects/arm64/sys/arm64/include

[Andrew Turner]

Author: andrew
Date: Thu Aug 14 18:46:36 2014
New Revision: 269997
URL: http://svnweb.freebsd.org/changeset/base/269997

Log:
  Add WEAK_REFERENCE to create a weak reference to a symbol in asm

Modified:
  projects/arm64/sys/arm64/include/asm.h

Modified: projects/arm64/sys/arm64/include/asm.h
==============================================================================
--- projects/arm64/sys/arm64/include/asm.h	Thu Aug 14 18:46:33 2014	(r269996)
+++ projects/arm64/sys/arm64/include/asm.h	Thu Aug 14 18:46:36 2014	(r269997)
@@ -41,6 +41,10 @@
 	.text; .globl sym; .align 2; sym:
 #define END(sym) .size sym, . - sym
 
+#define	WEAK_REFERENCE(sym, alias)				\
+	.weak alias;						\
+	.set alias,sym
+
 #define	UINT64_C(x)	(x)
 
 #endif /* _MACHINE_ASM_H_ */