[Bug gdb/22907] New: [Regression] gdbserver doesn't work with filename-only binaries

["sergiodj at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=22907

            Bug ID: 22907
           Summary: [Regression] gdbserver doesn't work with filename-only
                    binaries
           Product: gdb
           Version: 8.1
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: sergiodj at redhat dot com
          Reporter: sergiodj at redhat dot com
                CC: brobecker at adacore dot com, simon.marchi at ericsson dot com
  Target Milestone: 8.1

Simon Marchi mentioned on IRC that, after the startup-with-shell feature has
been implemented on gdbserver, it is not possible to specify a filename-only
binary, like:

  $ gdbserver :1234 a.out
  /bin/bash: line 0: exec: a.out: not found
  During startup program exited with code 127.
  Exiting

This happens on systems where the current directory "." is not listed in the
PATH environment variable.  Although including "." in the PATH variable is a
possible workaround, this can be considered a regression because before
startup-with-shell it was possible to use only the filename (due to reason that
gdbserver used "exec*" directly).

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