Currently setup.py depends on being invoked from the right directory
(specifically it needs to be run from the root of the project). That's a
bit confusing.
This updates setup.py to no longer depend on the invoking directory by
instead having it change directory to the location of the script itself,
then using internal paths relative to that.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
This function no longer does anything useful, so get rid of it.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
Currently setup.py expects the library version in a VERSION environment
variable, or it exctracts the version from the Makefile. The latter is
for the case where the script is run standalone, rather than from make.
But parsing the Makefile is ugly and fragile, and won't always get the
same version we put into the C code.
This changes to instead extracting the version from the trivial .h file we
already generate to put the version into C code. It's still slightly ugly,
but it's simpler and since we can control the precise format of that .h,
not as fragile.
This lets us remove the remains of the makefile parsing code from setup.py.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
At the moment we unconditionally pass --quiet to setup.py. Change that to
get more debugging output from it when V=1 is passed to make.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
This points to the Python setup script, since we reference it in a couple
of places. While we're there correct two small problems:
1) setup.py is part of the checked in sources and so lives in
$(PYLIBFDT_srcdir) not $(PYLIBFDT_objdir) [this only worked because
those are the same by default]
2) The module itself should depend on the setup script so it is rebuilt
if the script is changed
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
At the moment we have some fiddly code to either pass in make's CPPFLAGS to
setup.py, or have setup.py extract them from the Makefile. But really the
only thing we need from here is the include paths. We already know what
include paths we need (libfdt/) so we can just set that directly in
setup.py.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
Currently we build the Python extension module from all the libfdt source
files as well as the swig wrapper file. This is a bit silly, since we've
already compiled libfdt itself.
This changes the build to instead build the extension module from just the
swig wrapper, linking it against the libfdt.a we've already build.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
Our Makefile currently passes PYLIBFDT_objdir into setup.py in an attempt
to set the correct place to put the Python extension module output. But
that gets passed in the 'package_dir' map in distutils.
But that's basically not what package_dir controls. What actually makes us
find the module in the right place is the --inplace passed to setup.py
(causing the module to go into the current directory), and the following
'mv' in the Makefile to move it into the right final location.
We can simplify setup.py by dropping the useless objdir stuff, and get the
module put in the right place straight way by instead using the --build-lib
setup.py option.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
pylibfdt/setup.py currently adds include flags to the extension module
build to allow include files in the base dtc directory. But pylibfdt
doesn't rely on any headers there, only on headers in libfdt/ - it also
shouldn't rely on dtc headers at any future time.
So, remove that from the include list, allowing some simplifications to
setup.py.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
These methods are needed to permit larger changes to the device tree blob.
Add two new methods and an associate test.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
At present this method always raised an exception when an error occurs.
Add a 'quiet' argument so it matches the other methods.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Fix typemap for fdt_get_mem_rsv so it returns 64-bit values.
Fixes https://github.com/dgibson/dtc/issues/15.
Signed-off-by: Dan Horák <dan@danny.cz>
[dwg: Adjusted commit message for typo and context]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
In libfdt.i we set the handling of uint64_t parameters to use
PyLong_AsUnsignedLong. But for 32-bit platforms, where an unsigned long
is 32-bits, this will truncate the value we need.
It turns out swig's default typemapping for uint64_t correctly handles
conversions both to python ints and python longs, so we don't need this
typemap at all.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
It is useful to be able to create a device tree from scratch using
software. This is supported in libfdt but not currently available in the
Python bindings.
Add a new FdtSw class to handle this, with various methods corresponding
to the libfdt functions. When the tree is complete, calling AsFdt() will
return the completed device-tree object.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
It is common to want to set a property to a nul-terminated string in a
device tree. Add python methods to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
At present pack() calls fdt_pack() which may well reduce the size of the
device-tree data. However this does not currently update the size of the
bytearray to take account of any reduction. This means that there may be
unused data at the end of the bytearray and any users of as_bytearray()
will see this extra data.
Fix this by resizing the bytearray after packing.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Extend the Properties class with some functions to read a single integer
property. Add a new getprop_obj() function to return a Property object
instead of the raw data.
This suggested approach can be extended to handle other types, as well as
arrays.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The members of struct fdt_header are declared as fdt32_t which is a
32-bit, big-endian, unsigned integer. These fields are accessed by macros
in libfdt.h so no return type is declared. But the correct return type is
uint32_t, not fdt32_t, since the endianness conversion is done within the
macro before returning the value.
The macros are re-declared as normal functions in pylibfdt since swig does
not support macros. The return type is currently int. Change it to
uint32_t, which allows us to drop the work-around mask in Fdt.magic().
Also change the typedef for fdt32_t to uint32_t. The currently has no
obvious effect, since use of big-endian values should always be internal
to pylibfdt, but it is more correct.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Allow updating and creating properties, including special methods for
integers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add support for fdt_open_into() and fdt_create_empty_tree() from the
Python library. The former is named resize() since it better fits with
what the Python binding actually does.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add a way to access this information from Python.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This function requires a bit of typemap effort to get the depth parameter
to work correctly. Add support for it, along with a test.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The ordering of the Python functions loosely matches the corresponding
function in the C header file, but not exactly. As we add more functions
it is easier to track what is missing if they are in the same order.
Move some functions around to achieve this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The return value is not actually mutable, so it seems more correct to
return bytes rather than a bytearray.
Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
It is annoying to have to add .value when we want the value of a Property.
Make Property a subclass of bytearray so that it can be used directly when
the value is required.
Fix the Property class comment while we are here.
Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
When calling libfdt functions which are not supported by the Fdt class it
is necessary to get direct access to the device tree data. At present this
requries using the internal _fdt member. Add a new method to provide
public access to this, without allowing the data to be changed.
Note that a bytearray type is returned rather than str, since the swig
types are set up for bytearray to map correctly to const void *.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The pylibfdt code is written for Python2, not Python3. So, it's safer to
explicitly request Python2 in our scripts and when checking pkg-config.
On Arch Linux at least, there isn't actually a plain "python" link, just
"python2" and "python3", so the current setup won't work at all.
According to https://www.python.org/dev/peps/pep-0394/ using "python2"
should work, and is preferred.
Updating pylibfdt to work with Python3 would be nice, but is a problem for
another day.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add this into the class to simplify use of this function.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add this into the class to simplify use of this function.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add this into the class to simplify use of this function.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add this into the class to simplify use of this function.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Some types used by libfdt.h are not understood the Python module since
they are defined outside it. An example is an attempt to do this:
import libfdt
result = libfdt.fdt_node_offset_by_phandle(fdt, phandle)
This results in:
TypeError: in method 'fdt_node_offset_by_phandle', argument 2 of
type 'uint32_t'
Include the standard integer header file to fix this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Since we are using the standard .i extension for the swig file, we can use
setup.py to build the wrapper. Drop the existing build code since it is
not needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The current mechanism uses a shell construct, but it seems better to use
a Makefile approach.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
At present we require that setup.py is executed from the Makefile, which
sets up various important things like the list of files to build and the
version number.
However many installation systems expect to be able to change to the
directory containing setup.py and run it. This allows them to support (for
example) building/installing for multiple Python versions, varying
installation paths, particular C flags, etc.
The problem in implementing this is that we don't want to duplicate the
information in the Makefile. A common solution (so I am told) is to parse
the Makefile to obtain the required information.
Update the setup.py script to read a few Makefiles when it does not see
the required information in its environment. This allows installation
using:
./pylibfdt/setup.py install
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We should follow PEP8 even for our setup() call.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The .i extension allows Python distutils to automatically handle the swig
file. Rename it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is in a separate patch since I not sure if GNU make features
are permitted in the Makefile.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Use the same version number in the module as with the rest of libfdt. This
can be examined with:
import pkg_resources
print pkg_resources.require('libfdt')[0].version
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Adjust the setup script to support installation, and call it from the
Makefile if enabled. It will be disabled if we were unable to build the
module (e.g. due to swig being missing), or the NO_PYTHON environment
variable is set.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
At present we manually move _libfdt.so into the correct place. Provide a
package directory so we can avoid needing to do this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
At present setup.py adjusts its command line when running, so that the
C flags and file list can be passed as arguments. Pass them in environment
variables instead, so we can avoid this messiness. It also allows us to
support the 'install' command.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add Python bindings for a bare-bones set of libfdt functions. These allow
navigating the tree and reading node names and properties.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Gibson