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authorH. Peter Anvin <hpa@linux.intel.com>2012-05-18 08:31:44 -0700
committerH. Peter Anvin <hpa@linux.intel.com>2012-05-18 08:31:44 -0700
commitc54a354c1835e7412a53458891b9ea05361b4e8a (patch)
tree87a443e4e3cc12955188d3ac2ccc2bc627fd7cec /arch/x86/tools
parentbea3f8781e30d0abc0bd0da80aa528d44c71959e (diff)
downloadlinux-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/tools')
-rw-r--r--arch/x86/tools/relocs.c6
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)$"
+ "^(__init_(begin|end)|"
+ "__x86_cpu_dev_(start|end)|"
+ "(__parainstructions|__alt_instructions)(|_end)|"
+ "(__iommu_table|__apicdrivers|__smp_locks)(|_end)|"
+ "_end)$"
};