[Bug gdb/27773] New: 'Dump memory' command aborted in GDB

[Bug gdb/27773] New: 'Dump memory' command aborted in GDB

[1179317825 at qq dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27773

            Bug ID: 27773
           Summary: 'Dump memory' command aborted in GDB
           Product: gdb
           Version: 10.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: 1179317825 at qq dot com
  Target Milestone: ---

When GDB debugging, if the directory parameter of the `dump memory` command
does not exist, an null pointer exception will occur.

such as:

(gdb) dump memory test 0x7fffffffe590 0x7fffffffe590+0x10
(gdb) dump memory TEST/test 0x7fffffffe590 0x7fffffffe590+0x10
Aborted (core dumped)


- The `TEST` directory does not exist.

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[Bug gdb/27773] 'Dump memory' command aborted in GDB

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27773

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

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=bea3329b76cf131ad4ac27acb6728b38984998b9

commit bea3329b76cf131ad4ac27acb6728b38984998b9
Author: Simon Marchi <simon.marchi@polymtl.ca>
Date:   Mon Apr 26 11:27:07 2021 -0400

    gdb: check result of gdb_fopen_cloexec in dump_binary_file

    Bug 27773 shows that passing a filename in a non-existent directory to
    the "dump binary" command leads to a gdb crash.  This is because the
    gdb_fopen_cloexec in dump_binary_file fails (returns nullptr) and the
    return value is not checked.  Fix that by erroring out if
    gdb_fopen_cloexec fails.

    gdb/ChangeLog:

            PR gdb/27773
            * cli/cli-dump.c (dump_binary_file): Check result of
            gdb_fopen_cloexec.

    gdb/testsuite/ChangeLog:

            PR gdb/27773
            * gdb.base/dump.exp: Test dump to non-existent dir.

    Change-Id: Iea89a3bf9e6b9dcc31142faa5ae17bc855759328

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[Bug gdb/27773] 'Dump memory' command aborted in GDB

[simark at simark dot ca]

https://sourceware.org/bugzilla/show_bug.cgi?id=27773

Simon Marchi <simark at simark dot ca> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
                 CC|                            |simark at simark dot ca
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #2 from Simon Marchi <simark at simark dot ca> ---
Fixed.

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