On Thu, 21 Jun 2012, yafo lee wrote:
hi guys,
In order to convert spin_lock_init(&adpt->tx_lock);
to mtx_init(&adpt->tx_lock, "adpt->tx_lock", "adpt->tx_lock", MTX_DEF);
I wrote the rule:
@@
struct mtx e;
@@
- spin_lock_init(&e)
+ mtx_init(&e, "e", "e", MTX_DEF)
But I got "e" instead of "adpt->tx_lock", how to fix that?
Coccinelle doesn't really support creating strings. But it is possible by
passing through a scripting language.
In the demos subdirectory you can find the demo pythontococci.cocci that
shows how to declare a metavariable in python code and then import it into
a SmPL rule as an identifier metavariable. Of course, you don't want an
identifier metavariable, you want a string, but it suffices to initialize
the metavariable in the python code to a string that contains the string,
including the extra ", that you want.
julia
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