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Joshua Oreman 572e61754a [linker] Expand and correct symbol requirement macros ... REQUIRE_SYMBOL() formerly used a formulation of symbol requirement that would allow a link to succeed despite lacking a required symbol, because it did not introduce any relocations. Fix by renaming it to REQUEST_SYMBOL() (since the soft-requirement behavior can be useful) and add a REQUIRE_SYMBOL() that truly requires. Add EXPORT_SYMBOL() and IMPORT_SYMBOL() for REQUEST_SYMBOL()-like behavior that allows one to make use of the symbol, by combining a weak external on the symbol itself with a REQUEST_SYMBOL() of a second symbol. Signed-off-by: Marty Connor <mdc@etherboot.org>		2009-11-20 20:27:25 -05:00
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efi.lds	[linker] Expand and correct symbol requirement macros	2009-11-20 20:27:25 -05:00