Commit graph

11 commits

Author SHA1 Message Date
Jean-Christophe Dubois
f79ddb83e1 fdtget.c: Fix memory leak
CID 132823 (#1 of 1): Resource leak (RESOURCE_LEAK)
5. leaked_storage: Variable blob going out of scope leaks the storage it points to.

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-24 01:05:05 +10:00
Mike Frysinger
b9e80656f2 util: drop "long" from usage helpers
Now that all utils have converted to the new usage framework, we can
rename to just plain "usage()" and avoid naming conflicts.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2013-05-24 18:20:53 +10:00
Mike Frysinger
03449b84c8 dtc/fdt{get, put}/convert-dtsv0-lexer: convert to new usage helpers
This helps standardize the flag processing and the usage screens.

Only lightly tested; would be great if someone who uses these utils
could double check.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2013-05-24 18:20:53 +10:00
Jon Loeliger
5543b88d5e Revert "utilfdt_read: pass back up the length of data read"
This reverts commit cc2c178727.
It was the wrong version of the patch.
2013-04-22 15:41:41 -05:00
Mike Frysinger
cc2c178727 utilfdt_read: pass back up the length of data read
For a follow up commit, we want to be able to scan the buffer that was
returned to us.  In order to do that safely, we need to know how big
the buffer actually is, so pass that back if requested.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-04-21 14:23:32 -05:00
Simon Glass
7fcbef2757 fdtget: Add -d to provide a default value
Sometimes the requested node or property is not present in the device
tree. This option provides a way of reporting a default value in this
case, rather than halting with an error.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2012-03-07 16:40:28 -06:00
Simon Glass
16c99ee8e3 fdtget: Add -l to list the subnodes of a node
This option lists the subnodes of each node given as a parameter, one
subnode per line.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2012-03-07 16:40:00 -06:00
Simon Glass
30eb201ada fdtget: Add -p to list the properties of a node
This option lists the properties of each node given as a parameter, one
property per line.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2012-03-07 13:26:06 -06:00
Simon Glass
097ec97c1a fdtget: Fix multiple arg bug and add test for it
There is a rather unfortunate bug in fdtget in that if multiple argument
sets are provided, it just repeats displaying the first set ones for
each set.

Fix this bug and add a test for it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2012-03-07 13:25:03 -06:00
David Gibson
53d6ca639d Trivial style fixup
Having braces on an if branch but not the else branch, or vice
versa is ugly and can trick you when reading the code.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2012-02-03 08:34:52 -06:00
Simon Glass
68d057f20d Add fdtget utility to read property values from a device tree
This simply utility makes it easy for scripts to read values from the device
tree. It is written in C and uses the same libfdt as the rest of the dtc
package.

What is it for:
- Reading fdt values from scripts
- Extracting fdt information within build systems
- Looking at particular values without having to dump the entire tree

To use it, specify the fdt binary file on command line followed by a list of
node, property pairs. The utility then looks up each node, finds the property
and displays the value.

Each value is printed on a new line.

fdtget tries to guess the type of each property based on its contents. This
is not always reliable, so you can use the -t option to force fdtget to decode
the value as a string, or byte, etc.

To read from stdin, use - as the file.

Usage:
	fdtget <options> <dt file> [<node> <property>]...
Options:
	-t <type>	Type of data
	-h		Print this help

<type>	s=string, i=int, u=unsigned, x=hex
	Optional modifier prefix:
		hh or b=byte, h=2 byte, l=4 byte (default)

Signed-off-by: Simon Glass <sjg@chromium.org>
2012-01-21 15:08:36 -06:00