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* [Bug gdb/27773] New: 'Dump memory' command aborted in GDB
@ 2021-04-24 3:36 1179317825 at qq dot com
2021-04-26 15:28 ` [Bug gdb/27773] " cvs-commit at gcc dot gnu.org
2021-04-26 15:33 ` simark at simark dot ca
0 siblings, 2 replies; 3+ messages in thread
From: 1179317825 at qq dot com @ 2021-04-24 3:36 UTC (permalink / raw)
To: gdb-prs
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
2021-04-24 3:36 [Bug gdb/27773] New: 'Dump memory' command aborted in GDB 1179317825 at qq dot com
@ 2021-04-26 15:28 ` cvs-commit at gcc dot gnu.org
2021-04-26 15:33 ` simark at simark dot ca
1 sibling, 0 replies; 3+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-04-26 15:28 UTC (permalink / raw)
To: gdb-prs
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
2021-04-24 3:36 [Bug gdb/27773] New: 'Dump memory' command aborted in GDB 1179317825 at qq dot com
2021-04-26 15:28 ` [Bug gdb/27773] " cvs-commit at gcc dot gnu.org
@ 2021-04-26 15:33 ` simark at simark dot ca
1 sibling, 0 replies; 3+ messages in thread
From: simark at simark dot ca @ 2021-04-26 15:33 UTC (permalink / raw)
To: gdb-prs
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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2021-04-24 3:36 [Bug gdb/27773] New: 'Dump memory' command aborted in GDB 1179317825 at qq dot com
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2021-04-26 15:33 ` simark at simark dot ca
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