[Bug tools/21522] New: eu-strip generates empty output if there is nothing to do

["paulo.cesar.pereira.de.andrade at gmail dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=21522

            Bug ID: 21522
           Summary: eu-strip generates empty output if there is nothing to
                    do
           Product: elfutils
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tools
          Assignee: unassigned at sourceware dot org
          Reporter: paulo.cesar.pereira.de.andrade at gmail dot com
                CC: elfutils-devel at sourceware dot org
  Target Milestone: ---

Steps to reproduce:

$ cat test.c
int main() { return 1; }

$ gcc test.c

$ eu-strip -g -o test ./a.out

  The "test" file will have zero bytes.
  This happens because of the test in src/strip.c:

  /* Test whether we are doing anything at all.  */
  if (cnt == idx)
    /* Nope, all removable sections are already gone.  */
    goto fail_close;

  Note also that, if the test is removed, it still
generates a different binary, so, the test is incomplete,
or should be removed.

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