[llvm-bugs] [Bug 40005] New: Don't overwrite the OS/ABI and ABIVERSION fields of the ELF header

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=40005

            Bug ID: 40005
           Summary: Don't overwrite the OS/ABI and ABIVERSION fields of
                    the ELF header
           Product: tools
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: llvm-objcopy
          Assignee: unassignedbugs at nondot.org
          Reporter: jh7370.2008 at my.bristol.ac.uk
                CC: alexander.v.shaposhnikov at gmail.com,
                    jake.h.ehrlich at gmail.com,
                    jh7370.2008 at my.bristol.ac.uk,
                    llvm-bugs at lists.llvm.org, rupprecht at google.com

llvm-objcopy unconditionally overwrites the OS/ABI and ABI Version fields of
the ELF header even if they are non-zero. This is clearly wrong (and isn't what
GNU objcopy does either). We should copy these values from the input if
possible. I'm not sure what we should do for binary input, but setting them to
0 seems about as reasonable as anything else.

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