[Bug gdb/18050] gdb crash on target remote, w/ two inferiors, current inferior is live

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=18050

--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Andrew Burgess <aburgess@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=9d4a934ce604afea155c39f06834cdbc47e92a6e

commit 9d4a934ce604afea155c39f06834cdbc47e92a6e
Author: Andrew Burgess <andrew.burgess@embecosm.com>
Date:   Fri Jun 22 20:39:26 2018 +0100

    gdb: Fix assert for extended-remote target (PR gdb/18050)

    Consider the following GDB session:

       (gdb) target extended-remote :2347
       (gdb) file /path/to/exe
       (gdb) set remote exec-file /path/to/exe
       (gdb) set detach-on-fork off
       (gdb) break breakpt
       (gdb) run
       # ... hits breakpoint
       (gdb) info inferiors
         Num  Description       Executable
       * 1    process 17001     /path/to/exe
         2    process 17002     /path/to/exe
       (gdb) kill
       (gdb) info inferiors
         Num  Description       Executable
       * 1    <null>            /path/to/exe
         2    process 17002     /path/to/exe
       (gdb) target extended-remote :2348
       ../../src/gdb/thread.c:660: internal-error: thread_info*
any_thread_of_process(int): Assertion `pid != 0' failed.
       A problem internal to GDB has been detected,
       further debugging may prove unreliable.

    Or, from bug PR gdb/18050:

       (gdb) start
       (gdb) add-inferior -exec /path/to/exe
       (gdb) target extended-remote :2347
       ../../src/gdb/thread.c:660: internal-error: thread_info*
any_thread_of_process(int): Assertion `pid != 0' failed.
       A problem internal to GDB has been detected,
       further debugging may prove unreliable.

    The issue is calling target.c:dispose_inferior with a killed inferior in
    the inferior list.  This assertion is fixed in this commit.

    The new test for this issue only runs on platforms that support
    'detach-on-fork', and when using
    '--target_board=native-extended-gdbserver'.

    gdb/ChangeLog:

        PR gdb/18050:
        * target.c (dispose_inferior): Don't dispose of inferiors that are
        already killed.

    gdb/testsuite/ChangeLog:

        PR gdb/18050:
        * gdb.server/extended-remote-restart.c: New file.
        * gdb.server/extended-remote-restart.exp: New file.

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