0fc5c1ccdb
On some architectures when building with -O0 the __register_frame symbol fails to get optimized out which can cause linking failures when building glibc. To fix this set -O1 for GCC target libs when building with glibc and BR2_OPTIMIZE_0 on the problematic target architectures. This was reported both to GCC [1] and glibc [2] upstream. It is not entirely clear yet where the bug lies exactly. At the moment the assumption is that it's GCC, so create a symbol BR2_TOOLCHAIN_HAS_GCC_BUG_107728. This issue only seems to occur when linking glibc, not with anything else, so only compile libgcc from host-gcc-initial with -O1. Fixes: - http://autobuild.buildroot.net/results/89b/89b6c6924240b7cf82035a844f3573673e91b364 - http://autobuild.buildroot.net/results/46f/46f4ec99d2b23d354a4bb5e92123d64f0da6ed27 - http://autobuild.buildroot.net/results/839/839f929f700cf181ebdf34389c7806a96f55813e - http://autobuild.buildroot.net/results/0e2/0e202bf53a683930f3cad6edef2a4dea629eaecb - http://autobuild.buildroot.net/results/8a8/8a8c917f597fdcca744e696e19e9300b64004335 - http://autobuild.buildroot.net/results/c05/c058b27ed2834dfa633b63ec6c3639ab1e8bf412 - http://autobuild.buildroot.net/results/8ba/8ba8882a861cf7df359c23969c09b2be0725b2e5 [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107728 [2] https://sourceware.org/bugzilla/show_bug.cgi?id=29621 Signed-off-by: James Hilliard <james.hilliard1@gmail.com> Signed-off-by: Arnout Vandecappelle <arnout@mind.be> |
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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