7cbc19471b
GCC 10 now enable by default -ftree-loop-distribute-patterns at -O2 or -Os optimization level instead of -O3, see commit [1]. Due to this change, the microblaze kernel doesn't boot (as reported by toolchain-builder project). The gcc docs between version 9 and 10 has been updated accordingly [2] [3] but there no word about this change in the gcc 10 changelog [4]. Fixes microblazebe: https://gitlab.com/bootlin/toolchains-builder/-/jobs/729359536 (glibc) https://gitlab.com/bootlin/toolchains-builder/-/jobs/729359538 (musl) https://gitlab.com/bootlin/toolchains-builder/-/jobs/729359540 (uClubc-ng) Fixes microblazeel: https://gitlab.com/bootlin/toolchains-builder/-/jobs/729359542 (glibc) https://gitlab.com/bootlin/toolchains-builder/-/jobs/729359544 (musl) https://gitlab.com/bootlin/toolchains-builder/-/jobs/729359546 (uClibc-ng) This has been reported upsteam [5]. [1] https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=5879ab5fafedc8f6f9bfe95a4cf8501b0df90edd [2] https://gcc.gnu.org/onlinedocs/gcc-9.3.0/gcc/Optimize-Options.html#Optimize-Options [3] https://gcc.gnu.org/onlinedocs/gcc-10.2.0/gcc/Optimize-Options.html#Optimize-Options [4] https://gcc.gnu.org/gcc-10/changes.html [5] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97208 Signed-off-by: Romain Naour <romain.naour@gmail.com> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> |
||
|---|---|---|
| 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