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scripts/sortextable: Handle relative entries, and other cleanups

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x86 is now using relative rather than absolute addresses in its
exception table, so we add a sorter for these.  If there are
relocations on the __ex_table section, they are redundant and probably
incorrect after the sort, so they are zeroed out leaving them valid
and consistent.

Also use the unaligned safe accessors from tools/{be,le}_byteshift.h

Signed-off-by: David Daney <david.daney@cavium.com>
Link: http://lkml.kernel.org/r/1335291795-26693-2-git-send-email-ddaney.cavm@gmail.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
David Daney
2012-04-24 11:23:14 -07:00
committed by H. Peter Anvin
parent 706276543b
commit d59a16836d
3 changed files with 172 additions and 96 deletions
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2
scripts/Makefile
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@@ -15,6 +15,8 @@ hostprogs-$(CONFIG_IKCONFIG) += bin2c
hostprogs-$(BUILD_C_RECORDMCOUNT) += recordmcount
hostprogs-$(CONFIG_BUILDTIME_EXTABLE_SORT) += sortextable
HOSTCFLAGS_sortextable.o = -I$(srctree)/tools/include
always := $(hostprogs-y) $(hostprogs-m)
# The following hostprogs-y programs are only build on demand