2b3f0153bb
Since glibc 2.33 (upstream commit 7a55dd3fb6d2c307a002a16776be84310b9c8989), headers >= 5.4.0 are needed to build glibc for RISC-V 32-bit. Indeed sysdeps/unix/sysv/linux/riscv/configure.ac contains: if test $libc_cv_riscv_int_abi = ilp32; then arch_minimum_kernel=5.4.0 fi In order to take into account this dependency, we add the appropriate logic in package/glibc/Config.in and toolchain/toolchain-buildroot/Config.in. This change means that if headers < 5.4.0 are selected, then no C library at all will be available for RISC-V 32-bit, as glibc is the only C library supporting RISC-V 32-bit currently. However, thanks to the recent addition of BR2_TOOLCHAIN_BUILDROOT_NONE, the choice...endchoice for the C library selection will not be empty, allowing the user to see the Config.in comment explaining why glibc can't be selected. Therefore, technically this commit does prevent from creating a configuration with RISC-V 32-bit and headers < 5.4.0, but it will have BR2_TOOLCHAIN_BUILDROOT_NONE=y, which is catched by package/Makefile.in, which aborts the build early on pointing out that the configuration is invalid. Fixes: http://autobuild.buildroot.net/results/5ca49b2732f68eccb5276e7112f7f496dcc514ee/ Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> |
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| arch | ||
| board | ||
| boot | ||
| configs | ||
| docs | ||
| fs | ||
| linux | ||
| package | ||
| support | ||
| system | ||
| toolchain | ||
| utils | ||
| .clang-format | ||
| .defconfig | ||
| .flake8 | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .shellcheckrc | ||
| 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 OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches