6e33e59080
To use time_t 64-bit for glibc >= 2.34 toolchains we have to set both
_FILE_OFFSET_BITS=64 and _TIME_BITS=64 for glibc toolchains. Buildroot
already define _FILE_OFFSET_BITS=64 since 2008 [1] before the first
release tag 2009.02.
_TIME_BITS is not needed for musl libc since it already year2038
ready [2].
The uclibc-ng libc only support time_t 32-bit (long int) so it will be
affected by the year2038 issue [3].
Fixes (in French, chapter Buildroot 2022 and GlibC):
https://www.blaess.fr/christophe/2038
Runtime tested with qemu_arm_vexpress_defconfig and the Bootlin glibc
bleeding-edge 2021.11-1 toolchain.
Before:
# date
Tue Jan 19 03:14:07 UTC 2038
# date
Thu Jan 1 00:00:00 UTC 1970
After:
# date
Tue Jan 19 03:14:07 UTC 2038
# date
Tue Jan 19 03:14:08 UTC 2038
# date
Tue Jan 19 03:14:09 UTC 2038
[1]
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|---|---|---|
| arch | ||
| board | ||
| boot | ||
| configs | ||
| docs | ||
| fs | ||
| linux | ||
| package | ||
| support | ||
| system | ||
| toolchain | ||
| utils | ||
| .clang-format | ||
| .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 OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches