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Summary: This fixes a corner case in which we have seen the symbol multiple times in different static libraries, but due to a depencency we end up loading the symbol from a library other than the first one. Previously the runtime linker would only track symbols from the first library and did not store the full link map. In this case it was unable to find the address for the symbols in the second library during delay loading. This change stores the address of all symbols seen so a full link map is generated, such that when we make a different decision later than what was expected we're able to still correctly load the library. Test Plan: ./validate, new testcase T15894 Reviewers: angerman, bgamari, erikd, simonmar Reviewed By: bgamari Subscribers: rwbarton, carter GHC Trac Issues: #15894 Differential Revision: https://phabricator.haskell.org/D5353 (cherry picked from commit a8b7cef4)
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