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x86, relocs: Workaround for binutils 2.22.52.0.1 section bug

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GNU ld 2.22.52.0.1 has a bug that it blindly changes symbols from
section-relative to absolute if they are in a section of zero length.
This turns the symbols __init_begin and __init_end into absolute
symbols.  Let the relocs program know that those should be treated as
relative symbols.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: H.J. Lu <hjl.tools@gmail.com>
Cc: <stable@vger.kernel.org>
Cc: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
This commit is contained in:
H. Peter Anvin 2012-05-18 00:24:09 -07:00
parent 6520fe5564
commit a3e854d95a
1 changed files with 5 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

6
arch/x86/tools/relocs.c
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@ -56,7 +56,11 @@ static const char * const sym_regex_kernel[S_NSYMTYPES] = {
* as absolute (typically defined outside any section in the linker script.)
*/
[S_REL] =
"^_end$",
"^(__init_(begin|end)|"
"__x86_cpu_dev_(start|end)|"
"(__parainstructions|__alt_instructions)(|_end)|"
"(__iommu_table|__apicdrivers|__smp_locks)(|_end)|"
"_end)$"
};