The amit company made some modifications to Busybox-1.0-rc2. The purpose of this modifications were:
It seems that the other utilities on the initrd do not depend on CPU-usage feature. Because of that and because it was the biggest part of the patch, this was not included. The other changes, including and a bugfix, which prevents a write to a random memory address, are included in the patch below.
To create a flash-image with Busybox-1.7.2 replace the contents of busybox_src in the MGB100_\GPL folder with the sources of Busybox-1.7.2. After that cd into that directory and apply the patch. Now you have to configure busybox. After that you can build the flash-image from the MGB100_\GPL folder with make linuxall
If you want to test busybox before you flash the new image have a look at Temporary modifications to the initrd
diff -upNr busybox-1.7.2/Makefile.flags busybox-1.7.2-mod/Makefile.flags
--- busybox-1.7.2/Makefile.flags 2007-09-03 13:48:58.000000000 +0200
+++ busybox-1.7.2-mod/Makefile.flags 2007-10-09 16:37:01.000000000 +0200
@@ -47,6 +47,9 @@ CFLAGS += $(call cc-option,-fno-guess-br
CFLAGS += $(call cc-option,-funsigned-char -static-libgcc,)
CFLAGS += $(call cc-option,-falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1,)
+LDFLAGS += -L$(TOPDIR)../usr_src/amit_lib
+LDLIBS += -lamit
+
# FIXME: These warnings are at least partially to be concerned about and should
# be fixed..
#CFLAGS+=$(call cc-option,-Wconversion,)
diff -upNr busybox-1.7.2/coreutils/date.c busybox-1.7.2-mod/coreutils/date.c
--- busybox-1.7.2/coreutils/date.c 2007-09-03 13:48:39.000000000 +0200
+++ busybox-1.7.2-mod/coreutils/date.c 2007-10-09 13:12:12.000000000 +0200
@@ -11,6 +11,9 @@
*/
#include "libbb.h"
+#include <sys/io.h>
+
+extern void write_into_rtc(struct tm *tm_time);
/* This 'date' command supports only 2 time setting formats,
all the GNU strftime stuff (its in libc, lets use it),
@@ -171,6 +174,10 @@ int date_main(int argc, char **argv)
bb_error_msg_and_die(bb_msg_invalid_date, date_str);
}
maybe_set_utc(opt);
+#ifdef _HAVE_RTC
+ // added by Lily -- 20050520
+ write_into_rtc(&tm_time);
+#endif
/* if setting time, set it */
if ((opt & DATE_OPT_SET) && stime(&tm) < 0) {
diff -upNr busybox-1.7.2/init/init.c busybox-1.7.2-mod/init/init.c
--- busybox-1.7.2/init/init.c 2007-09-03 13:48:54.000000000 +0200
+++ busybox-1.7.2-mod/init/init.c 2007-10-09 15:11:14.000000000 +0200
@@ -15,6 +15,7 @@
//#include <sys/ioctl.h>
//#include <sys/wait.h>
#include <sys/reboot.h>
+#include <sys/io.h>
#if ENABLE_FEATURE_INIT_SYSLOG
# include <sys/syslog.h>
@@ -570,6 +571,7 @@ static void init_reboot(unsigned long ma
static void shutdown_system(void)
{
+ unsigned long reg;
sigset_t block_signals;
/* run everything to be run at "shutdown". This is done _prior_
@@ -602,6 +604,16 @@ static void shutdown_system(void)
sync();
sleep(1);
+ iopl(3);
+ outl(0x80003848, 0xcf8);
+ reg = inl(0xcfc);
+ reg |= 0x3C;
+ outl(reg, 0xcfc);
+ outl(0x8000384C, 0xcf8);
+ reg = inl(0xcfc);
+ reg &= 0xC3;
+ outl(reg, 0xcfc);
+
message(L_CONSOLE | L_LOG, "Sending SIG%s to all processes", "KILL");
kill(-1, SIGKILL);
sync();
@@ -651,9 +663,12 @@ static void shutdown_signal(int sig)
{
const char *m;
int rb;
+ unsigned long reg;
shutdown_system();
-
+ sleep(1);
+ reg |= 0x3C;
+ outl(reg, 0xcfc);
m = "halt";
rb = RB_HALT_SYSTEM;
if (sig == SIGTERM) {