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The previous method used to determine the --gcc-install-dir relied on
'ls' over the gcc installation path, which was fragile and failed in
cases where the external toolchain contained multiple gcc versions or
paths [1].
We replace it a more reliable approach using:
$(TARGET_CC) -print-search-dirs
This helps setup to register the desired GCC architecture if a
given toolchain packages includes multiple GCC architecture
installations. Which isn't possible using the actual method using 'ls'.
For example from James's report:
└── /opt/container/my-toolchain-2025.01.01.12345/lib/gcc/
├── aarch64-example-linux-gnu/
│ └── ...
├── i686-example-linux-gnu/
│ └── ...
└── x86_64-example-linux-gnu/
└── ...
Thanks to Romain Naour for suggesting this improved method.
[1] https://lore.kernel.org/buildroot/d1c773dc-8346-4077-946a-0d3b4e30a6c8@smile.fr/T/#t
Reported by: James Knight <git@jdknight.me>
Signed-off-by: El Mehdi YOUNES <elmehdi.younes@smile.fr>
Tested-by: James Knight <jdknight@jdknight.me>
Tested-by: James Knight <git@jdknight.me>
Signed-off-by: Romain Naour <romain.naour@smile.fr>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches