RFC ARM: use C pre-processor with dtc
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Cover letter [RFC PATCH 0/3] ARM: use C pre-processor with dtc
Quoted 18 lines · Jean-Christophe PLAGNIOL-VILLARD
Quoted 17 lines · Stephen Warren
From: Stephen Warren <[email protected]>
This series adds some build rules to run cpp on *.dts-cpp prior to invoking dtc, and converts Tegra to the new rule as an example. What do people think?
I assume that you've applied the dtc patches I sent yesterday. They aren't in this series. See:
https://lists.ozlabs.org/pipermail/devicetree-discuss/2012-September/020182.html
https://lists.ozlabs.org/pipermail/devicetree-discuss/2012-September/020183.html
https://lists.ozlabs.org/pipermail/devicetree-discuss/2012-September/020181.htmlNote: those patches are against upstream dtc. If you wish to test this series, apply the dtc patches to upstream dtc, build it, and copy the resultant dtc binary over the top of
scripts/dtc/dtc.
Quoted 6 lines
Quoted 4 lines
Stephen Warren (3):
kbuild: introducecmd_dtc_cpp
ARM: usecmd_dtc_cppfor compilation of *.dts-cpp to *.dtb
ARM: tegra: compile all DT files with cppI do not like the extention
It is a bit unwieldy. Perhaps *.dtsp, *.dtsip would be better.
Quoted 1 line
can we run gcc everytime?
Not without editing all the device tree files; any property (or node) name the starts with a # must be escaped; changed from "#foo" to "\#foo" to avoid cpp attempting to interpret it as a pre-processor directive.
Quoted 3 lines
or just do as done for lds
*.dts.S
.S means assembly. (that's why I went with .dts-cpp rather than .dts.cpp).