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3.6.7 Setting default Options

Note that Valgrind also reads options from three places:

1. The file ‘~/.valgrindrc’
2. The environment variable $VALGRIND_OPTS
3. The file ‘./.valgrindrc’

These are processed in the given order, before the command-line options. Options processed later override those processed earlier; for example, options in ‘./.valgrindrc’ will take precedence over those in ‘~/.valgrindrc’. The first two are particularly useful for setting the default tool to use.

Any tool-specific options put in $VALGRIND_OPTS or the ‘.valgrindrc’ files should be prefixed with the tool name and a colon. For example, if you want Memcheck to always do leak checking, you can put the following entry in ‘~/.valgrindrc’:

--memcheck:leak-check=yes

This will be ignored if any tool other than Memcheck is run. Without the ‘memcheck:’ part, this will cause problems if you select other tools that don't understand ‘--leak-check=yes’.