KMSG_DUMP_REGISTER(9) Driver Basics KMSG_DUMP_REGISTER(9)NAME
kmsg_dump_register - register a kernel log dumper.
SYNOPSIS
int kmsg_dump_register(struct kmsg_dumper * dumper);
ARGUMENTS
dumper
pointer to the kmsg_dumper structure
DESCRIPTION
Adds a kernel log dumper to the system. The dump callback in the structure will be called when the kernel oopses or panics and must be set.
Returns zero on success and -EINVAL or -EBUSY otherwise.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 KMSG_DUMP_REGISTER(9)
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PPI::Dumper(3pm) User Contributed Perl Documentation PPI::Dumper(3pm)NAME
PPI::Dumper - Dumping of PDOM trees
SYNOPSIS
# Load a document
my $Module = PPI::Document->new( 'MyModule.pm' );
# Create the dumper
my $Dumper = PPI::Dumper->new( $Module );
# Dump the document
$Dumper->print;
DESCRIPTION
The PDOM trees in PPI are quite complex, and getting a dump of their structure for development and debugging purposes is important.
This module provides that functionality.
The process is relatively simple. Create a dumper object with a particular set of options, and then call one of the dump methods to
generate the dump content itself.
METHODS
new $Element, param => value, ...
The "new" constructor creates a dumper, and takes as argument a single PPI::Element object of any type to serve as the root of the tree to
be dumped, and a number of key->value parameters to control the output format of the Dumper. Details of the parameters are listed below.
Returns a new "PPI::Dumper" object, or "undef" if the constructor is not passed a correct PPI::Element root object.
memaddr
Should the dumper print the memory addresses of each PDOM element. True/false value, off by default.
indent
Should the structures being dumped be indented. This value is numeric, with the number representing the number of spaces to use when
indenting the dumper output. Set to '2' by default.
class
Should the dumper print the full class for each element. True/false value, on by default.
content
Should the dumper show the content of each element. True/false value, on by default.
whitespace
Should the dumper show whitespace tokens. By not showing the copious numbers of whitespace tokens the structure of the code can often
be made much clearer. True/false value, on by default.
comments
Should the dumper show comment tokens. In situations where you have a lot of comments, the code can often be made clearer by ignoring
comment tokens. True/value value, on by default.
locations
Should the dumper show the location of each token. The values shown are [ line, rowchar, column ]. See "location" in PPI::Element for a
description of what these values really are. True/false value, off by default.
print
The "print" method generates the dump and prints it to STDOUT.
Returns as for the internal print function.
string
The "string" method generates the dump and provides it as a single string.
Returns a string or undef if there is an error while generating the dump.
list
The "list" method generates the dump and provides it as a raw list, without trailing newlines.
Returns a list or the null list if there is an error while generation the dump.
SUPPORT
See the support section in the main module.
AUTHOR
Adam Kennedy <adamk@cpan.org>
COPYRIGHT
Copyright 2001 - 2011 Adam Kennedy.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.
perl v5.10.1 2011-02-26 PPI::Dumper(3pm)