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A new _FORTIFY_SOURCE=3 level was introduced in glibc, in commit: https://sourceware.org/git/?p=glibc.git;a=commit;h=c43c5796121bc5bcc0867f02e5536874aa8196c1 This commit was first included glibc 2.33. At that time, it was only supported by llvm/clang 9, and not by any released gcc version. To support _FORTIFY_SOURCE=3, the needed gcc features were introduced in version 12. The gcc 12 support was added in glibc commit: https://sourceware.org/git/?p=glibc.git;a=commit;h=86bf0feb0e3ec8e37872f72499d6ae33406561d7 This commit was first included in glibc 2.35. Buildroot updated to glibc 2.35 in commit: https://git.buildroot.org/buildroot/commit/?id=68d0aede597d32816c5b2ff32de0ce33cc14eb93 Buildroot introduced gcc 12 support in commit: https://git.buildroot.org/buildroot/commit/?id=0f1ad4fc93286adaba852c99d6e1c2565b5c4258 Support for _FORTIFY_SOURCE=3 can now be added. Signed-off-by: Julien Olivain <ju.o@free.fr> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.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