[llvm-bugs] [Bug 42754] New: llvm-addr2line does not exit when passed a non-existent file

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=42754

            Bug ID: 42754
           Summary: llvm-addr2line does not exit when passed a
                    non-existent file
           Product: tools
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: llvm-symbolizer
          Assignee: unassignedbugs at nondot.org
          Reporter: arichardson.kde at gmail.com
                CC: llvm-bugs at lists.llvm.org

GNU addr2line and FreeBSD addr2line exit immediately when passed an invalid
file with -e:
$ addr2line -fi -e /bad/file
addr2line: /bad/file: No such file or directory

However, llvm-addr2line does not exit and waits for input on stdin.
This causes compiler-rt/test/asan/TestCases/Posix/asan-symbolize-bad-path.cc to
block forever if -DLLVM_INSTALL_BINUTILS_SYMLINKS=ON is enabled.
In that case the addr2line found in the path will be llvm-addr2line and then
the test waits forever.

I wonder if we want to change llvm-addr2line (and possibly also
llvm-symbolizer) to behave in the same way as GNU?

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