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| author | H. Peter Anvin <hpa@linux.intel.com> | 2012-05-18 08:31:44 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-05-18 08:31:44 -0700 |
| commit | c54a354c1835e7412a53458891b9ea05361b4e8a (patch) | |
| tree | 87a443e4e3cc12955188d3ac2ccc2bc627fd7cec /arch/x86 | |
| parent | bea3f8781e30d0abc0bd0da80aa528d44c71959e (diff) | |
| download | linux-c54a354c1835e7412a53458891b9ea05361b4e8a.tar.bz2 | |
x86, relocs: More relocations which may end up as absolute
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.
This bug is exposed by checkin
433de739bbc2 x86, realmode: 16-bit real-mode code support for relocs tool
only in the sense that that checkin changes the relocs tool to report
an error instead of silently generating a kernel which is broken if
relocated.
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: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/tools/relocs.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c index 4df285450e8c..b49c2119295e 100644 --- a/arch/x86/tools/relocs.c +++ b/arch/x86/tools/relocs.c @@ -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] = - "^(__init_begin|__init_end|_end)$" + "^(__init_(begin|end)|" + "__x86_cpu_dev_(start|end)|" + "(__parainstructions|__alt_instructions)(|_end)|" + "(__iommu_table|__apicdrivers|__smp_locks)(|_end)|" + "_end)$" }; |