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module: Sort exported symbols

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This patch places every exported symbol in its own section
(i.e. "___ksymtab+printk").  Thus the linker will use its SORT() directive
to sort and finally merge all symbol in the right and final section
(i.e. "__ksymtab").

The symbol prefixed archs use an underscore as prefix for symbols.
To avoid collision we use a different character to create the temporary
section names.

This work was supported by a hardware donation from the CE Linux Forum.

Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (folded in '+' fixup)
Tested-by: Dirk Behme <dirk.behme@googlemail.com>
This commit is contained in:
Alessio Igor Bogani 2011-04-14 14:59:39 +02:00 • committed by Rusty Russell
commit f02e8a6596
1 changed files with 23 additions and 12 deletions
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11
scripts/module-common.lds
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@ -5,4 +5,15 @@
*/
SECTIONS {
/DISCARD/ : { *(.discard) }
__ksymtab : { *(SORT(___ksymtab+*)) }
__ksymtab_gpl : { *(SORT(___ksymtab_gpl+*)) }
__ksymtab_unused : { *(SORT(___ksymtab_unused+*)) }
__ksymtab_unused_gpl : { *(SORT(___ksymtab_unused_gpl+*)) }
__ksymtab_gpl_future : { *(SORT(___ksymtab_gpl_future+*)) }
__kcrctab : { *(SORT(___kcrctab+*)) }
__kcrctab_gpl : { *(SORT(___kcrctab_gpl+*)) }
__kcrctab_unused : { *(SORT(___kcrctab_unused+*)) }
__kcrctab_unused_gpl : { *(SORT(___kcrctab_unused_gpl+*)) }
__kcrctab_gpl_future : { *(SORT(___kcrctab_gpl_future+*)) }
}