5aac65cd8e
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>
(cherry picked from commit
|
||
|---|---|---|
| .. | ||
| 8.4.0 | ||
| 9.4.0 | ||
| 10.4.0 | ||
| 11.3.0 | ||
| arc-2020.09-release | ||
| gcc-final | ||
| gcc-initial | ||
| Config.in.host | ||
| gcc.hash | ||
| gcc.mk | ||