Fix ixp425 boot2 with ARM EABI:

- libkern is missing __aeabi_llsl, implement this by calling __ashldi3.
 - Because of how the asm entry macros are defined the boot2 code
   requires the unwind symbols to exist, include them in boot2.

Approved by:	re (marius)

sys/boot/arm/ixp425/boot2/Makefile

@@ -1,5 +1,7 @@
 #  $FreeBSD$
 
+.include <bsd.own.mk>
+
 # We get a lot of the std lib functions from here.
 .PATH: ${.CURDIR}/../../at91/libat91
 
@@ -15,6 +17,9 @@ FILES=${P}
 SRCS=arm_init.S boot2.c ${BOOT_FLAVOR:tl}_board.c
 SRCS+=memchr.c memcmp.c memcpy.c memmem.c memset.c printf.c strcmp.c strcpy.c
 SRCS+=strlen.c ashldi3.c divsi3.S muldi3.c
+.if ${MK_ARM_EABI} != "no"
+SRCS+=aeabi_unwind.c
+.endif
 NO_MAN=
 
 KERNPHYSADDR=0x180000

sys/libkern/arm/aeabi_unwind.c

@@ -29,7 +29,11 @@
 __FBSDID("$FreeBSD$");
 
 #include <sys/types.h>
+#ifdef _KERNEL
 #include <sys/systm.h>
+#else
+#define	panic(x) (void)0
+#endif
 
 #ifdef __ARM_EABI__
 /* We need to provide these functions never call them */

sys/libkern/ashldi3.c

@@ -59,3 +59,13 @@ __ashldi3(a, shift)
 	}
 	return (aa.q);
 }
+
+#ifdef __ARM_EABI__
+long long __aeabi_llsl(long long, int);
+
+long long
+__aeabi_llsl(long long a, int b)
+{
+	return __ashldi3(a, b);
+}
+#endif