u-boot.git/examples/api, branch v2011.09-rc2

examples: update do_reset prototype

2011-01-09T16:53:45+00:00

One more place that was missed during the do_reset() unification.

Signed-off-by: Mike Frysinger

Make sure that argv[] argument pointers are not modified.

2010-07-04T21:55:42+00:00

The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands.  Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".

This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:

int main (int argc, char **argv)
{
	while (--argc > 0 && **++argv == '-') {
/* ====> */	while (*++*argv) {
			switch (**argv) {
			case 'd':
				debug++;
				break;
			...
			default:
				usage ();
			}
		}
	}
	...
}

The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell.  With the modification, the compiler will prevent this with
an
	error: increment of read-only location '*argv'

N.B.: The code above can be trivially rewritten like this:

	while (--argc > 0 && **++argv == '-') {
		char *arg = *argv;
		while (*++arg) {
			switch (*arg) {
			...

Signed-off-by: Wolfgang Denk 
Acked-by: Mike Frysinger

Make *printf() return "int" instead of "void"

2010-07-04T21:51:49+00:00

Change the return type of the *printf() functions to the standard
"int"; no changes are needed but returning the already available
length count.

This will save a few additional strlen() calls later...

Signed-off-by: Wolfgang Denk

Move arch/ppc to arch/powerpc

2010-04-21T21:42:38+00:00

As discussed on the list, move "arch/ppc" to "arch/powerpc" to
better match the Linux directory structure.

Please note that this patch also changes the "ppc" target in
MAKEALL to "powerpc" to match this new infrastructure. But "ppc"
is kept as an alias for now, to not break compatibility with
scripts using this name.

Signed-off-by: Stefan Roese 
Acked-by: Wolfgang Denk 
Acked-by: Detlev Zundel 
Acked-by: Kim Phillips 
Cc: Peter Tyser 
Cc: Anatolij Gustschin

Rename lib_generic/ to lib/

2010-04-13T07:13:04+00:00

Now that the other architecture-specific lib directories have been
moved out of the top-level directory there's not much reason to have the
'_generic' suffix on the common lib directory.

Signed-off-by: Peter Tyser

Move lib_$ARCH directories to arch/$ARCH/lib

2010-04-13T07:13:03+00:00

Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk

This change is intended to clean up the top-level directory structure
and more closely mimic Linux's directory organization.

Signed-off-by: Peter Tyser

Generic udelay() with watchdog support

2009-12-05T00:08:53+00:00

According to the PPC reference implementation the udelay() function is
responsible for resetting the watchdog timer as frequently as needed.
Most other architectures do not meet that requirement, so long-running
operations might result in a watchdog reset.

This patch adds a generic udelay() function which takes care of
resetting the watchdog before calling an architecture-specific
__udelay().

Signed-off-by: Ingo van Lil

ABI: fix build problems due to now needed div64 routine.

2009-07-27T07:19:15+00:00

Signed-off-by: Wolfgang Denk

Move api_examples to examples/api

2009-07-21T07:23:36+00:00

Also add a rule to remove demo.bin which was previously leftover
after a "make clean"

Signed-off-by: Peter Tyser