Commit-ID: c54a354c1835e7412a53458891b9ea05361b4e8a
Gitweb: http://git.kernel.org/tip/c54a354c1835e7412a53458891b9ea05361b4e8a
Author: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
AuthorDate: Fri, 18 May 2012 08:31:44 -0700
Committer: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
CommitDate: Fri, 18 May 2012 08:31:44 -0700
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@xxxxxxxxxx>
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: H.J. Lu <hjl.tools@xxxxxxxxx>
Cc: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxx>
---
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 4df2854..b49c211 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)$"
+ "^(__init_(begin|end)|"
+ "__x86_cpu_dev_(start|end)|"
+ "(__parainstructions|__alt_instructions)(|_end)|"
+ "(__iommu_table|__apicdrivers|__smp_locks)(|_end)|"
+ "_end)$"
};
--
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