[ELF] Add --allow-multiple-definition option.

Description

[ELF] Add --allow-multiple-definition option.

If --allow-multiple-definition option is given, LLD does not treat duplicate
symbol error as a fatal error. GNU LD supports this option.

Differential Revision: http://llvm-reviews.chandlerc.com/D3211

Details

Committed
ruiuMar 28 2014, 9:26 AM
Differential Revision
D3211: [ELF] Add --allow-multiple-definition option.
Parents
rL205014: Add const to a method I missed in the previous commit.
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