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authorJim Cromie <jim.cromie@gmail.com>2011-12-19 17:13:12 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2012-01-24 15:48:55 -0500
commit2b6783191da7211c88f98eb1a2bd2027bff36e30 (patch)
tree3227bbc5c9c187b6dbaa133a6f7e2e4364942594 /block
parent7281491c594e7b8501eb5dfcf6cd3724f8a1b5b0 (diff)
dynamic_debug: add trim_prefix() to provide source-root relative paths
trim_prefix(path) skips past the absolute source path root, and returns the pointer to the relative path from there. It is used to shorten the displayed path in $DBGMT/dynamic_debug/control via ddebug_proc_show(), and in ddebug_change() to allow relative filenames to be used in applied queries. For example: ~# echo file kernel/freezer.c +p > $DBGMT/dynamic_debug/control kernel/freezer.c:128 [freezer]cancel_freezing p " clean up: %s\012" trim_prefix(path) insures common prefix before trimming it, so out-of-tree module paths are shown as full absolute paths. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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