[llvm-bugs] [Bug 29063] New: __eprintf should only be provided for i386

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=29063

            Bug ID: 29063
           Summary: __eprintf should only be provided for i386
           Product: compiler-rt
           Version: 3.9
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: compiler-rt
          Assignee: unassignedbugs at nondot.org
          Reporter: jeremyhu at apple.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Followup to bug #28855.

In older versions of compiler-rt, __eprintf was only provided in
libclang_rt.eprintf.a and only for i386.  See r114509 (clang git mirror
885b1dbc6e48db318f7a6b72c1592e8fb46b081a).

The cmake build transition incorrectly added __eprintf to libclang_rt.osx.a and
did so for all architectures (bug #28855).

The resolution for bug #28855 did not resolve the regression in compiler-rt but
instead updated clang to no longer link libclang_rt.eprintf.a.

If the intended direction is to include __eprintf in libclang_rt.osx.a, then
compiler-rt needs to be updated to:
   1) Stop building libclang_rt.eprintf.a
   2) Only include __eprintf in the i386 slice

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