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* Convert cmd_usage() calls in common to use a return valueSimon Glass2012-03-061-2/+2
| | | | | | | | | Change all files in common/ to use CMD_RET_USAGE instead of calling cmd_usage() directly. I'm not completely sure about this patch since the code since impact is small (100 byte or so on ARM) and it might need splitting into smaller patches. But for now here it is. Signed-off-by: Simon Glass <sjg@chromium.org>
* cmd_usage(): simplify return code handlingWolfgang Denk2010-07-241-6/+4
| | | | | | | | | | | | | | | | Lots of code use this construct: cmd_usage(cmdtp); return 1; Change cmd_usage() let it return 1 - then we can replace all these ocurrances by return cmd_usage(cmdtp); This fixes a few places with incorrect return code handling, too. Signed-off-by: Wolfgang Denk <wd@denx.de>
* Make sure that argv[] argument pointers are not modified.Wolfgang Denk2010-07-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* General help message cleanupWolfgang Denk2009-06-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many of the help messages were not really helpful; for example, many commands that take no arguments would not print a correct synopsis line, but "No additional help available." which is not exactly wrong, but not helpful either. Commit ``Make "usage" messages more helpful.'' changed this partially. But it also became clear that lots of "Usage" and "Help" messages (fields "usage" and "help" in struct cmd_tbl_s respective) were actually redundant. This patch cleans this up - for example: Before: => help dtt dtt - Digital Thermometer and Thermostat Usage: dtt - Read temperature from digital thermometer and thermostat. After: => help dtt dtt - Read temperature from Digital Thermometer and Thermostat Usage: dtt Signed-off-by: Wolfgang Denk <wd@denx.de>
* Command usage cleanupPeter Tyser2009-01-281-2/+2
| | | | | | | | Remove command name from all command "usage" fields and update common/command.c to display "name - usage" instead of just "usage". Also remove newlines from command usage fields. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* Standardize command usage messages with cmd_usage()Peter Tyser2009-01-281-2/+2
| | | | Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD2008-10-181-1/+1
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* [BUILD] conditionally compile common/cmd_*.c in common/MakefileGrant Likely2007-11-201-4/+0
| | | | | | | Modify common/Makefile to conditionally compile the cmd_*.c files based on the board config. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* Merge branch 'testing' into workingAndy Fleming2007-08-031-2/+2
|\ | | | | | | | | | | | | | | | | | | Conflicts: CHANGELOG fs/fat/fat.c include/configs/MPC8560ADS.h include/configs/pcs440ep.h net/eth.c
| * common/cmd_[p-x]*: Remove obsolete references to CONFIG_COMMANDS.Jon Loeliger2007-07-081-2/+2
| | | | | | | | Signed-off-by: Jon Loeliger <jdl@freescale.com>
| * common/cmd_[i-z]* : Augment CONFIG_COMMANDS tests with defined(CONFIG_CMD_*).Jon Loeliger2007-07-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a compatibility step that allows both the older form and the new form to co-exist for a while until the older can be removed entirely. All transformations are of the form: Before: #if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT) After: #if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT) || defined(CONFIG_CMD_AUTOSCRIPT) Signed-off-by: Jon Loeliger <jdl@freescale.com>
* | [PCS440EP] upgrade the PCS440EP board:Heiko Schocher2007-06-221-3/+3
|/ | | | | | | | | | | | - Show on the Status LEDs, some States of the board. - Get the MAC addresses from the EEProm - use PREBOOT - use the CF on the board. - check the U-Boot image in the Flash with a SHA1 checksum. - use dynamic TLB entries generation for the SDRAM Signed-off-by: Heiko Schocher <hs@denx.de>
* [PATCH 1_4] Merge common get_dev() routines for block devicesGrant Likely2007-02-201-37/+3
| | | | | | | Each of the filesystem drivers duplicate the get_dev routine. This change merges them into a single function in part.c Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* * Fix get_partition_info() parameter error in all other callswdenk2005-03-041-1/+1
| | | | | | | | | | (common/cmd_ide.c, common/cmd_reiser.c, common/cmd_scsi.c). * Enable USB and IDE support for INKA4x0 board * Patch by Andrew Dyer, 28 February 2005: fix ext2load passing an incorrect pointer to get_partition_info() resulting in load failure for devices other than 0
* * Patch by Pavel Bartusek, 21 Mar 2004wdenk2004-03-251-0/+277
Add Reiserfs support * Patch by Hinko Kocevar, 20 Mar 2004 - Add auto-release for SMSC LAN91c111 driver - Add save/restore of PTR and PNR regs as suggested in datasheet
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