When building for ARM EABI link against libgcc for the __aeabi_* functions.

libexec/rtld-elf/Makefile

@@ -42,6 +42,16 @@ LDFLAGS+=	-shared -Wl,-Bsymbolic
 DPADD=		${LIBC_PIC}
 LDADD=		-lc_pic
 
+.if ${MACHINE_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no"
+# Some of the required math functions (div & mod) are implemented in libgcc
+# on ARM. The library also needs to be placed first to be correctly linked.
+# As some of the functions are used before we have shared libraries.
+DPADD+=		${LIBGCC}
+LDADD+=		-lgcc
+.endif
+
+
+
 .if ${MK_SYMVER} == "yes"
 LIBCDIR=	${TOPSRCDIR}/lib/libc
 VERSION_DEF=	${LIBCDIR}/Versions.def