Hello,

Derek Lee wrote:

> Now, I'm not sure whether I have to edit the Makefile in /usr/src/
> kernel/system or if this is done automatically?

No, this is not done automatically, you'll have to do that yourself.

> When I do edit the Makefile in /usr/src/kernel/system, I get the
> following errors:

> This is with $(SYSTEM)(do_mycall.o) \
> added to the list in Makefile

> # make
> make: Don't know how to make ../system.a(do_mycall.o)

> This is with $(SYSTEM)(do_mycall.o): do_mycall.o
> $(CC) do_mycall.o
> added to the list in Makefile

I think you made a typo. Only the rule's name should end in .o, the rule's
dependency should be do_mycall.c, as should the argument to the compiler.
The rule you entered is circular.

Regards,

Jens

--
Jens de Smit
Student Computer Science | Vrije Universiteit Amsterdam
jfdsmit@few.vu.nl | http://www.few.vu.nl/~jfdsmit
"[In the end, people] get furious at IT that the goddamn magic isn't working"
-- Stewart Dean

Hi,

"J.F. de Smit" wrote:

> I think you made a typo. Only the rule's name should end in .o, the rule's
> dependency should be do_mycall.c, as should the argument to the compiler.
> The rule you entered is circular.

I apolgoise, I did make a typo, but the typo was in this form.
In my actual source code, the correct code appears as:

$(SYSTEM)(do_mycall.o): do_mycall.c
$(CC) do_mycall.c

Which still gives me the error -
make: No targets provided in Makefile near line 146
(line 146: $(SYSTEM)(do_mycall.o): ...)

??

Regards,
Derek.

Derek Lee wrote:
> Hi,

> "J.F. de Smit" wrote:

>> I think you made a typo. Only the rule's name should end in .o, the rule's
>> dependency should be do_mycall.c, as should the argument to the compiler.
>> The rule you entered is circular.

> I apolgoise, I did make a typo, but the typo was in this form.
> In my actual source code, the correct code appears as:

> $(SYSTEM)(do_mycall.o): do_mycall.c
> $(CC) do_mycall.c

Hmmm. I'm just guessing now, but it could be that your additional line has
incorrect whitespace. 'Make' can be very picky about its whitespace. Make
sure that the rule you wrote is preceded by an empty line, there are only
spaces (preferably, only one) between the name of
the target and its dependencies and that the line containing the compiler
command starts with a single TAB. If that does not fix the problem, I'm
out of ideas.

Regards,

Jens

--
Jens de Smit
Student Computer Science | Vrije Universiteit Amsterdam
jfdsmit@few.vu.nl | http://www.few.vu.nl/~jfdsmit
"[In the end, people] get furious at IT that the goddamn magic isn't working"
-- Stewart Dean

"J.F. de Smit" wrote:

> Hmmm. I'm just guessing now, but it could be that your additional line has
> incorrect whitespace. 'Make' can be very picky about its whitespace. Make
> sure that the rule you wrote is preceded by an empty line, there are only
> spaces (preferably, only one) between the name of
> the target and its dependencies and that the line containing the compiler
> command starts with a single TAB. If that does not fix the problem, I'm
> out of ideas.

Thanks Jens, it compiles now.
It was the TAB. I had incorrectly used spaces to line up
$(CC) do_mycall.c.