[sdcc-devel] [ sdcc-Bugs-1678803 ] __naked functions that return function pointers

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Bugs item #1678803, was opened at 2007-03-12 10:07
Message generated for change (Comment added) made by rguetlein
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Ralf Guetlein (rguetlein)
Assigned to: Nobody/Anonymous (nobody)
Summary: __naked functions that return function pointers

Initial Comment:
typedef void (*func)(void);

func GetFunc(void) __naked
{
_asm

  ; some assembler code

_endasm;
}

void Caller(void)
{
  GetFunc()();
}


The above mentioned program leads to the error message
"error 12: called object is not a function".

Some tests indicated that the __naked modifier confuses the compiler about the return value of GetFunc().
If I change Getfunc() to not use __naked it compiles OK:

func GetFunc(void)
{
  return (func)0;
}

I tested this with 2.6.0 and the latest snapshot.


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>Comment By: Ralf Guetlein (rguetlein)
Date: 2007-07-15 16:03

Message:
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Originator: YES

Robert,

I found the reported bug on 2.6.0 and a snapshot from February this year.
Now I can tell the error is gone in 2.7.0

Regards,
Ralf 

----------------------------------------------------------------------

Comment By: rlar (rlar)
Date: 2007-07-13 19:23

Message:
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Ralf Guetlein,
  i've tried svn version #4870 and #4882 with 
     sdcc -c -mmcs51
  and "ret" for "some assembler code"
  both versions worked well.

what version did you try ?
  what was the exact command line for sdcc ?

Robert Larice

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