Commit graph

7 commits

Author SHA1 Message Date
Stefan Roese
4b0a03d375 ppc: Fix DBSR_IAx defines in <bedbug/regs.h>
While adding asm/cache.h to common.h for PPC targets, I got an
error about multiple definitions of some DBSR_ macros. While
scanning these defines, I noticed that some where defined not
correctly for all PPC variants. So I removed all unused defines,
and corrected the ones really used by bedbug (book-e vs. ppc40x).

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
2011-10-09 22:20:44 +02:00
Wolfgang Denk
5ae0dea3e8 Fix warning: "assert" redefined
Commit 21726a7 "Add assert() for debug assertions" caused build
warnings for many systems:

In file included from bedbug.c:6:
/home/wd/git/u-boot/work/include/bedbug/bedbug.h:24:1: warning: "assert" redefined
In file included from bedbug.c:3:
/home/wd/git/u-boot/work/include/common.h:144:1: warning: this is the location of the previous definition
In file included from cmd_bedbug.c:10:
/home/wd/git/u-boot/work/include/bedbug/bedbug.h:24:1: warning: "assert" redefined
In file included from cmd_bedbug.c:5:
/home/wd/git/u-boot/work/include/common.h:144:1: warning: this is the location of the previous definition

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
2011-09-10 01:10:19 +02:00
Wolfgang Denk
54841ab50c Make sure that argv[] argument pointers are not modified.
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 <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2010-07-04 23:55:42 +02:00
Wolfgang Denk
53677ef18e Big white-space cleanup.
This commit gets rid of a huge amount of silly white-space issues.
Especially, all sequences of SPACEs followed by TAB characters get
removed (unless they appear in print statements).

Also remove all embedded "vim:" and "vi:" statements which hide
indentation problems.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-05-21 00:14:08 +02:00
wdenk
8bde7f776c * Code cleanup:
- remove trailing white space, trailing empty lines, C++ comments, etc.
  - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)

* Patches by Kenneth Johansson, 25 Jun 2003:
  - major rework of command structure
    (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
wdenk
6c9c32f9b9 Initial revision 2002-08-17 09:51:03 +00:00
wdenk
012771d88a Initial revision 2002-03-08 21:31:05 +00:00