[llvm-bugs] [Bug 44698] New: Global initialization incompatibility with old objects

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Tue Jan 28 08:59:04 PST 2020


            Bug ID: 44698
           Summary: Global initialization incompatibility with old objects
           Product: lld
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: ELF
          Assignee: unassignedbugs at nondot.org
          Reporter: dominik.strasser at onespin.com
                CC: llvm-bugs at lists.llvm.org, peter.smith at linaro.org

Created attachment 23069
  --> https://bugs.llvm.org/attachment.cgi?id=23069&action=edit
tarball containing material to reproduce

Linking running the attached project with lld produces a crashing object
whereas using ld yields a working one.

My suspicion is that lld does not pick up the global initialization function
which lacks the _sub_ infix.
0000000000000288 t _GLOBAL__I_outFilePtr // from old g++, crashes with lld
00000000000001af t _GLOBAL__sub_I_outFilePtr // from new g++, works with lld

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