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| author | Andi Kleen <ak@linux.intel.com> | 2014-02-08 09:01:08 +0100 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-02-13 20:24:13 -0800 |
| commit | ef1b893c29d0dba778f67ad97b554b37f9108dcc (patch) | |
| tree | c77e509d240979f0718d6778a6abfe42fc0b59c3 /kernel/module.c | |
| parent | 128ea04a9885af9629059e631ddf0cab4815b589 (diff) | |
| download | talos-obmc-linux-ef1b893c29d0dba778f67ad97b554b37f9108dcc.tar.gz talos-obmc-linux-ef1b893c29d0dba778f67ad97b554b37f9108dcc.zip | |
lto, workaround: Add workaround for initcall reordering
Work around a LTO gcc problem: when there is no reference to a variable
in a module it will be moved to the end of the program. This causes
reordering of initcalls which the kernel does not like.
Add a dummy reference function to avoid this. The function is
deleted by the linker.
This replaces a previous much slower workaround.
Thanks to Jan "Honza" Hubička for suggesting this technique.
Suggested-by: Jan Hubička <hubicka@ucw.cz>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1391846481-31491-4-git-send-email-ak@linux.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'kernel/module.c')
0 files changed, 0 insertions, 0 deletions
