LLVM bitcode for almost the whole source tree

Change-Id: Ibc6f89de112e0649c3a3bfe49c2baa2ed0746212

sys/arch/i386/stand/boot/Makefile.boot

@@ -124,6 +124,7 @@ LIBKERN= ${KERNLIB}
 
 # When using gold linker, specify the linker script
 GOLDLINKERSCRIPT?= ${LDS_N}
+USE_BITCODE=no
 
 # use MINIX minc
 LIBKERN= ${DESTDIR}/usr/lib/libminc.a

sys/arch/i386/stand/bootxx/Makefile.bootxx

@@ -129,6 +129,7 @@ LIBKERN=        ${KERNLIB}
 
 # When using gold linker, specify the linker script
 GOLDLINKERSCRIPT?= ${LDS_N}
+USE_BITCODE=no
 
 # use MINIX minc
 LIBKERN= ${DESTDIR}/usr/lib/libminc.a

sys/arch/i386/stand/lib/Makefile.inc

@@ -13,6 +13,8 @@
 #		building.  See library's Makefile for more details about
 #		supported flags and their default values.
 
+USE_BITCODE=no
+
 # Default values:
 I386DST?=		${.OBJDIR}/lib/i386
 

sys/sys/cdefs_elf.h

@@ -56,9 +56,11 @@
     __asm(".global " _C_LABEL_STRING(#alias) "\n"			\
 	    _C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym));
 
+#if defined(__minix) && !defined(__weak_alias) /* For bitcode support */
 #define	__weak_alias(alias,sym)						\
     __asm(".weak " _C_LABEL_STRING(#alias) "\n"			\
 	    _C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym));
+#endif
 
 /* Do not use __weak_extern, use __weak_reference instead */
 #define	__weak_extern(sym)						\