+#else /* arch-agnostic */
+
+static __inline__ int fls(unsigned int x)
+{
+ int r = 32;
+
+ if (!x)
+ return 0;
+ if (!(x & 0xFFFF0000U)) {
+ x <<= 16;
+ r -= 16;
+ }
+ if (!(x & 0xFF000000U)) {
+ x <<= 8;
+ r -= 8;
+ }
+ if (!(x & 0xF0000000U)) {
+ x <<= 4;
+ r -= 4;
+ }
+ if (!(x & 0xC0000000U)) {
+ x <<= 2;
+ r -= 2;
+ }
+ if (!(x & 0x80000000U)) {
+ x <<= 1;
+ r -= 1;
+ }
+ return r;
+}
+
+#endif
+
+#ifdef __arm__
+
+struct registers {
+};
+
+#define ARCH_COPY_ADDR(dst) "ldr "dst", =2b\n\t" \
+ "b 55f\n\t" \
+ ".ltorg\n\t" \
+ "55:\n\t"
+
+#define _ASM_PTR ".long "
+#define save_registers(a)
+
+#endif /* __arm__ */