tree 1d954d10fced7cb20937747c0b2cff9388c0b799
parent d0339c27677ab18e084e91500fea9f469b70f1a8
author Saleem Abdulrasool <compnerd@compnerd.org> 1512152404 -0800
committer Saleem Abdulrasool <compnerd@compnerd.org> 1512778507 -0800

COFF: restructure metadata registration

Restructure the COFF metadata handling to use the linker section
grouping to emit section start/stop markers in the appropriate location.
This allows us to lookup the sections statically without having to the
walk the entire image structure.

Introduce a constructor for PE/COFF binaries.  This will ensure that the
registration occurs for all modules appropriately.  This should resolve
rdar://problem/19045112.  The registration should occur prior to
`DllMain` being invoked from `DllMainCRTStartup`.