Ashin Walpola
d107534eb2
obu-firmware builds against the vanetza-idf C-ITS library, which until now came from the colleague's microbu-esp32c5 tree beside the repository and was not tracked here, so a clone of this repository could not build the firmware it ships. The library alone is now part of obu-firmware, as obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from there by default; -DVANETZA_IDF_DIR still points the build elsewhere. The rest of the colleague's tree (their own VAM firmware, PKI tooling, station-link Python tools, the V2X2MAP bridge) stays out of this repository and gitignored; nothing is pushed to their repository. NOTES.md, docs/06, TODO.md and the pcap verifier's usage line point at the new location.
56 lines
1.8 KiB
Markdown
56 lines
1.8 KiB
Markdown
# Cross-Compilation of Dependencies
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This document summarises a few hints for cross-compiling Vanetza's dependencies.
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Please note, that cross-compiling is not relevant for you if you plan to use Vanetza on the same system you have built it on.
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## Boost
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Create a configuration file for Boost.Build in your home directory at `$HOME/user-config.jam` and add following line to it:
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using gcc : arm : arm-linux-gnueabihf-g++ ;
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The *install* stage does not work in Boost 1.71.0 (and 1.70.0) when cross-compiling.
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A workaround for this issue is to remove following lines from `tools/build/src/tools/common.jam` (around line 976):
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# From GCC 5, versioning changes and minor becomes patch
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if $(tag) = gcc && [ numbers.less 4 $(version[1]) ]
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{
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version = $(version[1]) ;
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}
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# Ditto, from Clang 4
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if ( $(tag) = clang || $(tag) = clangw ) && [ numbers.less 3 $(version[1]) ]
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{
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version = $(version[1]) ;
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}
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Then, the required libraries can be built and installed at given *prefix* path:
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:::shell
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./b2 --prefix=$HOME/vanetza-deps --with-date_time --with-program_options --with-system --no-samples --no-tests variant=release link=shared cxxstd=11 install
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## Crypto++
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Version 8.2 can be cross-compiled with the provided `GNUmakefile-cross` makefile.
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:::shell
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export CXX=arm-linux-gnueabihf-g++
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export PREFIX=$HOME/vanetza-deps
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export HAS_SOLIB_VERSION=1
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make -f GNUmakefile-cross shared
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make -f GNUmakefile-cross install
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## GeographicLib
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Following steps have been tested with version 1.50.
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`$VANETZA` refers to the root directory of this repository.
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:::shell
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mkdir build.arm
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cd build.arm
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cmake .. -DCMAKE_TOOLCHAIN_FILE=$VANETZA/cmake/Toolchain-Cohda-MK5.cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$HOME/vanetza-deps
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make install
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