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utils.bbclass contains create_cmdline_wrapper() function that creates wrapper script with additional arguments for any passed "$cmd" command, and uses several calls to "dirname". Because "dirname" is an external command, in cases of lots of calls to wrapped "$cmd", each call of "dirname" will incur significant overhead. There are three same calls to "dirname": one for saving it`s output to "realdir" variable, and other two in "exec" command. So last two "dirname" calls can be replaced with cached value from "realdir" variable. (From OE-Core rev: 912c9eda653c45fee2f55092fbe281efba897bc0) Signed-off-by: Oleksandr Popovych <opopovyc@cisco.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> (cherry picked from commit 4b9cf2c80fd14386e0b88a2e6c40a9fa3f1ae0f7) Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>