Lang Hames b170349fb7 [ORC] Fix symbol dependence propagation algorithm in ObjectLinkingLayer. ... ObjectLinkingLayer was not correctly propagating dependencies through local symbols within an object. This could cause symbol lookup to return before a searched-for symbol is ready if the following conditions are met: (1) The definition of the symbol being searched for transitively depends on a local symbol within the same object, and that local symbol in turn transitively depends on an external symbol provided by some other module in the JIT. (2) Concurrent compilation is enabled. (3) Thread scheduling causes the lookup of the searched-for symbol to return before all transitive dependencies of the looked-up symbol are emitted. This bug was found by inspection and has not been observed in practice. A jitlink test case has been added to verify that symbol dependencies are correctly propagated through local symbol definitions.		2020-02-11 12:56:41 -08:00
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AArch64	[JITLink] Refactor EH-frame handling to support eh-frames with existing relocs.	2019-11-06 14:30:26 -08:00
X86	[ORC] Fix symbol dependence propagation algorithm in ObjectLinkingLayer.	2020-02-11 12:56:41 -08:00