Make __libsys_interposing_slot libsys only

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D44881

lib/libsys/Makefile

@@ -60,7 +60,8 @@ MIASM=
 NOASM=
 
 SYM_MAPS+=	${LIBSYS_SRCTOP}/Symbol.map
-SRCS+=	auxv.c
+SRCS+=	auxv.c \
+	interposing_table.c
 
 .include "${LIBSYS_SRCTOP}/Makefile.sys"
 

lib/libsys/Makefile.sys

@@ -37,7 +37,6 @@ SRCS+=	\
 	__getosreldate.c \
 	getpagesize.c \
 	getpagesizes.c \
-	interposing_table.c \
 	libsys_sigwait.c
 
 .if ${LIB} == "c"
@@ -46,6 +45,8 @@ SOBJS+=	libc_stubs.pico
 
 # Link the full implementation of ELF auxargs for static libc.
 STATICOBJS+=	auxv.o
+
+STATICOBJS+=	interposing_table.o
 .endif
 
 NOASM=	yield.o

lib/libsys/Symbol.map

@@ -2,6 +2,7 @@ FBSDprivate_1.0 {
 	__elf_aux_vector;
 	__getosreldate;
 	__realpathat;
+	__libsys_interposing_slot;
 	_elf_aux_info;
 	freebsd11_fstat;
 	freebsd11_fstatat;

lib/libsys/Symbol.sys.map

@@ -384,7 +384,6 @@ FBSD_1.8 {
 
 FBSDprivate_1.0 {
 	/* Add entries in sort(1) order */
-	__libsys_interposing_slot;
 	__set_error_selector;
 	__sigwait;
 	gssd_syscall;