8477c41244
While testing Buildroot on a Cortex-A5 that doesn't provide NEON, we found out that a system generated with the ARM toolchain from Arm didn't boot. It turns out that this ARM toolchain is built with: --with-arch=armv7-a --with-fpu=neon --with-float=hard --with-mode=thumb So, it uses NEON as its FPU, which means it can only work on CPU cores that have NEON support. This commit adds the appropriate dependency to the toolchain-external-arm-arm package, and adjusts the Config.in help text accordingly. While at it, it also drops the part of the Config.in help text that says the code is tuned for Cortex-A9, as it is not the case: it was the case for the Linaro toolchain (built with --with-tune=cortex-a9), but not for the ARM toolchain, for which no specific --with-tune is passed. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Romain Naour <romain.naour@gmail.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com> |
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| arch | ||
| board | ||
| boot | ||
| configs | ||
| docs | ||
| fs | ||
| linux | ||
| package | ||
| support | ||
| system | ||
| toolchain | ||
| utils | ||
| .defconfig | ||
| .flake8 | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| CHANGES | ||
| Config.in | ||
| Config.in.legacy | ||
| COPYING | ||
| DEVELOPERS | ||
| Makefile | ||
| Makefile.legacy | ||
| README | ||
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 Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches