Hamish <ham...@gmail.com> wrote:
> AKA, what's wrong with the following? Isn't a string literal always a
> constant?
>
> $ cat > cfretain_calayer.d
> pid$target::CFRetain:entry
> {
> isaptr = *(uint32_t*)copyin(arg0, 4);
> classnameptr = *(uint32_t*)copyin(isaptr+8, 4);
> classname = copyinstr(classnameptr);
>
> p = (classname == "CALayer" ? "CFRetain(CALayer)\n" : "");
> printf(p);
> }
>
> $ sudo dtrace -p 31303 -s cfretain_calayer.d
> dtrace: failed to compile script cfretain_calayer.d: line 8: printf( )
> argument #1 is incompatible with prototype:
> prototype: string constant
> argument: string
It is not simple for a compiler to check this
as p is definitely not a string constant but only pointing to one.
Jörg
--
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