Hi!
I am trying to port software from AVR-GCC to Z80-SDCC 2.7.0.
SDCC : mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08
2.7.0 #4818 (May 31 2007) (MINGW32)
On a number of source files, I receive the error message: (for example:)
../.././nut/crt/write.c:92: warning 154: converting integral to pointer
without a cast
from type 'literal-char'
to type 'struct _NUTFILE generic* '
The "problem" is that "write.c" has only 41 lines. So "write.c:92" points
"somewhere".
Interestingly, ALL warning 154 messages show the "92" as line number when
the "to" type is 'struct _NUTFILE generic* ' and show the line number 121
when the to type is 'void generic* '.
The source of write.c is:
--start--
#include "nut_io.h"
#include <sys/device.h>
/*!
* \addtogroup xgCrtLowio
*/
/[EMAIL PROTECTED]/
/*!
* \brief Write data to a file, device or socket.
*
* \param fd Descriptor of a previously opened file, device or
* connected socket.
* \param data Pointer to data in program space to be written.
* \param count Number of bytes to write.
*
* \return The number of bytes written, which may be less than the number
* of bytes specified. A return value of -1 indicates an error.
*
* \note The write implementation of the underlying driver does not need
* to be thread-safe. Parallel writes using device usartavr will
* lead to intermixed data (if data doesn't fit into ringbuffer
* on the first try )
*/
int _write(int fd, CONST void *data, unsigned int count)
{
NUTFILE *fp = (NUTFILE *) ((uptr_t) fd);
NUTDEVICE *dev = fp->nf_dev;
if (dev == 0) {
NUTVIRTUALDEVICE *vdv = (NUTVIRTUALDEVICE *) fp;
return (*vdv->vdv_write) (vdv, data, count);
}
return (*dev->dev_write) (fp, data, count);
}
/[EMAIL PROTECTED]/
--end--
SDCC is invoked by:
sdcc -c 2>>d:\pjrc\sdccout.txt -mz80 --stack-auto -DZ80_SBC180
-I../.././nutbld/include -I../.././nut/include ../.././nut/crt/write.c -o
write.o
I also tried a newer SDCC version:
D:\pjrc>sdcc --version
SDCC : mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08
2.7.4 #5000 (Jan 25 2008) (MINGW32)
because I found a email dated 2007-02-12 20:18 in the archive stating a bug
(which may be this one, I thought) is fixed by SVN 4631.
Has anybody come across this situation? How may I go forward to find what
causes that message?
Regards
Ernst
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