a1c7f81143
The dtc compiler expands &node1 (as opposed to <&node1>) to the full
path to the node with the label "node1". Note that if this label is on
a node in an overlay that the path will reflect that, even if the
node with the label eventually ends up in the base dtb.
If a parameter of a base dtb is used to make an alias point to another
node in the base dtb, it is nice to be able to specify that replacement
path using a label on that node, rather than have to write it out
longhand. Doing so requires one simple change - treating literal
assignments of empty strings as a special case:
console_uart0 = <&aliases>, "console=", &uart0;
Prior to this commit, this would have resulted in an error when the
console_uart0 was applied because the start of the &uart0 path string
would have been interpreted as a phandle to the next override target.
With this commit, the parser sees the empty string assigment and
treats the next thing as a string to assign (rather like assigning
a phandle value to an integer property).
A consequence of this change is that intentionally assigning an empty
string (probably a very rare occurrence) requires an explicit empty
string to be added, i.e. "...=","" or that the empty assignment falls
at the end of the list of overrides for that parameter.
This repository contains the source code for the ARM side libraries used on Raspberry Pi. These typically are installed in /opt/vc/lib and includes source for the ARM side code to interface to: EGL, mmal, GLESv2, vcos, openmaxil, vchiq_arm, bcm_host, WFC, OpenVG.
Use buildme to build. It requires cmake to be installed and an ARM cross compiler. For 32-bit cross compilation it is set up to use this one: https://github.com/raspberrypi/tools/tree/master/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian
Whilst 64-bit userspace is not officially supported, some of the libraries will work for it. To cross compile, install gcc-aarch64-linux-gnu and g++-aarch64-linux-gnu first. For both native and cross compiles, add the option --aarch64 to the buildme command.
Note that this repository does not contain the source for the edidparser and vcdbg binaries due to licensing restrictions.