apport-valgrind(1)
NAME
apport-valgrind - valgrind wrapper that first downloads debug symbols
SYNOPSIS
apport-valgrind [ OPTIONS ] EXECUTABLE
DESCRIPTION
apport-valgrind is a valgrind wrapper that automatically downloads
related available debug symbols and provides them to valgrind's
memcheck tool, which is executed. The output is a valgrind log file
("valgrind.log") that contains stack traces (with as many symbols
resolved as available) and that shows memory leaks.
By default, a temporary cache directory is created to hold the latest
debug symbol packages. These are unpacked into a temporary sandbox
directory. The path to the sandbox directory is provided to valgrind
as an additional location for symbol files.
You may create and use persistent cache and sandbox directories to save
time across multiple executions, thus preventing the need to recreate
them each time. Downloading all packages into the the cache directory
each time is particularly time consuming.
It is recommended to update your system before execution. This ensures
your runtime environment is consistent with the latest downloaded
symbol packages and therefore results in a more complete stack trace
from valgrind.
EXECUTABLE is the program to run under valgrind. Always terminate the
EXECUTABLE in its usual way. Exit it from the GUI if there is one. If
not, use the most appropriate method.
Different techniques are used to determine which packages should be
unpacked into the sandbox depending on whether EXECUTABLE is packaged
(installed by a debian package) or not (for example something created
for development or testing). A packaged EXECUTABLE has debian
dependencies that are used. For an unpackaged EXECUTABLE, the shared
object files are found with ldd and the packages for these are used.
OPTIONS
-C CDIR, --cache=CDIR
Reuse a previously created cache dir (CDIR) or, if it does not
exist, create it.
--sandbox-dir=SDIR
Reuse a previously created sandbox dir (SDIR) or, if it does not
exist, create it
--no-sandbox
Do not create or reuse a sandbox directory for additional debug
symbols but rely only on installed debug symbols. This speeds
execution time but may result in an incomplete and less useful
valgrind log if you do not have all appropriate debug symbol
packages installed.
-p, --extra-package
Specify an extra package (or packages) to unpack in the sandbox.
Useful to add additional debug symbol packages that result in
more complete valgrind logs.
-v, --verbose
Report download/install progress when installing packages in
sandbox mode.
-l LOGFILE, --log=LOGFILE
Specify the file name for the generated valgrind log file.
Default is: valgrind.log
-h, --help
Display short help that documents all options.
EXAMPLES
Create and use temporary cache and sandbox directories:
apport-valgrind EXECUTABLE
Reuse or create cache dir:
apport-valgrind -C CDIR EXECUTABLE
Reuse or create sandbox dir:
apport-valgrind --sandbox-dir SDIR EXECUTABLE
KNOWN ISSUES
If you abnormally terminate the executable you are running under valgrind, temporary directories may not be deleted and processes may not all terminate. For example, if the executable does not normally terminate on ctrl+c, pressing ctrl+c in the terminal may cause apport- valgrind and valgrind to terminate, but may not terminate the executable and may not delete the temporary directories.
AUTHORS
Developed by Martin Pitt <martin.pitt@ubuntu.com>, Alex Chiang <alex.chiang@canonical.com> and Kyle Nitzsche <kyle.nitzsche@canonical.com>
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