[llvm-bugs] [Bug 33064] New: Merge IAT and ILT

via llvm-bugs llvm-bugs at lists.llvm.org
Tue May 16 19:24:32 PDT 2017


            Bug ID: 33064
           Summary: Merge IAT and ILT
           Product: lld
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: COFF
          Assignee: unassignedbugs at nondot.org
          Reporter: ruiu at google.com
                CC: llvm-bugs at lists.llvm.org

Currently, LLD-produced executables have IAT (Import Address Table) and ILT
(Import Lookup Table) as separate chunks of data, although their contents are
identical. My interpretation of the COFF spec when I wrote the COFF linker is
that they need to be separate tables even though they are the same.

But Peter found that the Windows loader is fine with executables in which IAT
and ILT are merged.

We should merge them to save space.

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