Implement arm64 BTI support.

ok Brad (maintainer)

multimedia/x265/Makefile

@@ -3,7 +3,7 @@ COMMENT=	free H.265/HEVC encoder
 VER=		3.5
 DISTNAME=	x265_${VER}
 PKGNAME=	x265-${VER}
-REVISION=	1
+REVISION=	2
 CATEGORIES=	multimedia
 MASTER_SITES=	https://bitbucket.org/multicoreware/x265_git/downloads/
 

multimedia/x265/patches/patch-source_common_aarch64_asm_S

@@ -6,7 +6,7 @@
 Index: source/common/aarch64/asm.S
 --- source/common/aarch64/asm.S.orig
 +++ source/common/aarch64/asm.S
-@@ -25,22 +25,34 @@
+@@ -25,23 +25,35 @@
  
  #ifdef PREFIX
  #define EXTERN_ASM _
@@ -39,7 +39,16 @@ Index: source/common/aarch64/asm.S
 +#define FUNC #
 +#else
  #define FUNC @
-+#endif
  #endif
++#endif
  
  .macro function name, export=1
+     .macro endfunc
+@@ -56,6 +68,7 @@ ELF     .hidden EXTERN_ASM\name
+ ELF     .type   EXTERN_ASM\name, %function
+ FUNC    .func   EXTERN_ASM\name
+ EXTERN_ASM\name:
++        bti     c
+ .else
+ ELF     .hidden \name
+ ELF     .type   \name, %function