Split libsys in arch dependent parts

The ARM part is not finished yet and will be fixed in a later commit.

lib/libsys/Makefile

@@ -3,7 +3,9 @@
 
 LIB=		sys
 
-SRCS=  \
+.include "arch/${MACHINE_ARCH}/Makefile.inc"
+
+SRCS+=  \
 	alloc_util.c \
 	assert.c \
 	asynsend.c \
@@ -75,7 +77,6 @@ SRCS=  \
 	taskcall.c \
 	tickdelay.c \
 	timers.c \
-	tsc_util.c \
 	vm_brk.c \
 	vm_exit.c \
 	vm_fork.c \
@@ -87,31 +88,6 @@ SRCS=  \
 	vm_procctl.c \
 	vprintf.c
 
-.if ${MACHINE_ARCH} == "i386"
-SRCS+=  \
-	get_randomness.c \
-	getidle.c \
-	profile.c \
-	profile_extern.c \
-	ser_putc.c \
-	spin.c \
-	sys_eniop.c \
-	sys_in.c \
-	sys_int86.c \
-	sys_out.c \
-	sys_readbios.c \
-	sys_sdevio.c \
-	sys_umap_remote.c \
-	sys_vinb.c \
-	sys_vinl.c \
-	sys_vinw.c \
-	sys_voutb.c \
-	sys_voutl.c \
-	sys_voutw.c \
-	timing.c \
-	vbox.c
-.endif
-
 .if ${MKPCI} != "no"
 SRCS+=	pci_attr_r16.c \
 	pci_attr_r32.c \

lib/libsys/arch/earm/Makefile.inc

@@ -0,0 +1,12 @@
+# Makefile for arch-dependent libsys code
+.include <bsd.own.mk>
+
+HERE=${.CURDIR}/arch/${MACHINE_ARCH}
+.PATH:  ${HERE}
+
+SRCS+=  \
+        tsc_util.c
+
+CPPFLAGS+=        -I${HERE}/../../
+
+

lib/libsys/arch/earm/tsc_util.c

@@ -0,0 +1,46 @@
+
+#include <stdio.h>
+#include <time.h>
+#include <sys/times.h>
+#include <sys/types.h>
+#include <minix/u64.h>
+#include <minix/config.h>
+#include <minix/const.h>
+#include <minix/minlib.h>
+#include <machine/archtypes.h>
+
+#include "sysutil.h"
+
+#ifndef CONFIG_MAX_CPUS
+#define CONFIG_MAX_CPUS 1
+#endif
+
+#define MICROHZ		1000000		/* number of micros per second */
+#define MICROSPERTICK(h)	(MICROHZ/(h))	/* number of micros per HZ tick */
+
+static u32_t calib_mhz = 1000, Hz = 1000;
+
+int
+micro_delay(u32_t micros)
+{
+	return OK;
+}
+
+u32_t tsc_64_to_micros(u64_t tsc)
+{
+	u64_t tmp;
+
+	tmp = div64u64(tsc, calib_mhz);
+	if (ex64hi(tmp)) {
+		printf("tsc_64_to_micros: more than 2^32ms\n");
+		return ~0UL;
+	} else {
+		return ex64lo(tmp);
+	}
+}
+
+u32_t tsc_to_micros(u32_t low, u32_t high)
+{
+	return tsc_64_to_micros(make64(low, high));
+}
+

lib/libsys/arch/i386/Makefile.inc

@@ -0,0 +1,33 @@
+# Makefile for arch-dependent libsys code
+.include <bsd.own.mk>
+
+HERE=${.CURDIR}/arch/${MACHINE_ARCH}
+.PATH:  ${HERE}
+
+SRCS+=  \
+        get_randomness.c \
+        getidle.c \
+        profile.c \
+        profile_extern.c \
+        ser_putc.c \
+        spin.c \
+        sys_eniop.c \
+        sys_in.c \
+        sys_int86.c \
+        sys_out.c \
+        sys_readbios.c \
+        sys_sdevio.c \
+        sys_umap_remote.c \
+        sys_vinb.c \
+        sys_vinl.c \
+        sys_vinw.c \
+        sys_voutb.c \
+        sys_voutl.c \
+        sys_voutw.c \
+        timing.c \
+        tsc_util.c \
+        vbox.c
+
+CPPFLAGS+=        -I${HERE}/../../
+
+