Hi,
> Got the right path: /usr/local/share/sdcc and this folder has other
> three: include, lib and non-free. I notice that libc18f is not in
> /usr/local/share/sdcc/non-free/lib/pic16 but in but in
> /usr/local/share/sdcc/lib/pic16 folder.
OK, now you need tell gplink to (i) look there and (ii) to include
libc18f.lib during linking.
> After addign this line to code strcpy(str1, "testing") {str1 => char
> str1[10]} I get this error:
>
> /usr/local/bin/sdcc --debug-ralloc -Wl-c -Wl-m --use-non-free
> --pstack-model=large --pno-banksel --extended --obanksel=2 --debug-xtra
> --pcode-verbose -L /usr/local/share/sdcc/lib/ -L /usr/share/sdcc/lib/
> -I/usr/local/share/sdcc/include -I/usr/local/share/sdcc/include/pic16/
> -mpic16 -p18f4550 build/default/production/main.o
> -odist/default/production/Pic18F4550Test.X.production.cof
> message: using default linker script "/usr/share/gputils/lkr/18f4550.lkr"
> error: missing definition for symbol "_strcpy", required by
> "build/default/production/main.o"
> This is weird because libraries are there... Don't no what else I can do.
As I wrote earlier, you must tell the linker to include libc18f.lib:
>> You need to append libc18f.lib to the linker command line.
Here is your current linker command (the one that fails):
> /usr/local/bin/sdcc --debug-ralloc -Wl-c -Wl-m --use-non-free
> --pstack-model=large --pno-banksel --extended --obanksel=2 --debug-xtra
> --pcode-verbose -L /usr/local/share/sdcc/lib/ -L /usr/share/sdcc/lib/
> -I/usr/local/share/sdcc/include -I/usr/local/share/sdcc/include/pic16/
> -mpic16 -p18f4550 build/default/production/main.o
> -odist/default/production/Pic18F4550Test.X.production.cof
Problems:
As you pointed out earlier, libc18f.lib does not reside in any of the
paths given here after -L.
What's more, you found out that libc18f.lib does not reside in
.../non-free/lib/pic16, so --use-non-free will still not point the linker
to the right path.
Solutions:
(1) Add -L /usr/local/share/sdcc/lib/pic16 to the link command.
(2) Append libc18f.lib to the link command. In a autoconf-compliant
Makefile, this might be done by extending the LIBS variable; LDADD might
also work if it is combined into the linker command following all files to
be linked (after .../main.o). In MPLAB X, I have no clue where/how to
append this.
To give you more information on how the tools (assembler, linker) are
invoked, you can also include -V in the linker command to see what's
actually passed on to gplink. Its arguments must include (i) a proper -L
/path/to/libc18f.lib directive, (ii) /path/to/main.o, (iii) libc18f.lib
(possibly including the complete /path/to/libc18f.lib to avoid further
problems with automatic searching) -- and in this order: (iii) *must* come
after (i) and (ii).
I hope this clears things up.
Raphael
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