[sdcc-devel] [ sdcc-Bugs-3041150 ] PIC16: global const struct initializing problem

[SourceForge.net <no...@so...>]

Bugs item #3041150, was opened at 2010-08-07 14:36
Message generated for change (Tracker Item Submitted) made by awsit
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=100599&aid=3041150&group_id=599

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: pic16 target
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: strobla (awsit)
Assigned to: Nobody/Anonymous (nobody)
Summary: PIC16: global const struct initializing problem

Initial Comment:
Dear Raphael, dear sdcc-developers,

my USB bootloader project is not compileable any more after revision r5894 including current revision r5917.
If I revert the patch for src/pic16/glue.c from revision 5893:5894 all is working again.
(It is possible, that my code is not valid as gcc compiled code fails with:
  cc -DUSE_GCC -O2   -c -o sub.o sub.c
  sub.c:3: error: invalid application of ‘sizeof’ to incomplete type ‘const unsigned char[]’
  make: *** [sub.o] Fehler 1
)

And: you are doing a great job. Thanks for developing sdcc.

Regards, Strobl Anton


== sub.c =====================================
#include "sub.h"
const unsigned char mystring[] = { sizeof(mystring), 0x31, 0x32, 0x33, 0x34 };

== sub.h =====================================
extern const unsigned char mystring[];

== main.c ====================================
#pragma stack 0xD00 256
#include <pic18fregs.h>
#include <pic18f25j50.h>
#include "sub.h"
#include <stdio.h>

void main(void)
{
        unsigned char i;
        for (i=0; i< mystring[0]; i++) {
                printf ("%s\n", mystring[i] );
        };
}

======== log output =========================
current release r5917:

/usr/bin/sdcc_test -mpic16 -p18f25j50 --fomit-frame-pointer --obanksel=2 --opt-code-size --optimize-cmp --optimize-df -I /usr/share/gptuils/lkr -I /usr/share/sdcc/include/pic16   -c -o main.o main.c
sub.h:2: error 66: attempt to allocate variable of unknown size 'str0'
make: *** [main.o] Fehler 1


with revert patch (src/pic16/glue.c / Revision 5893):

/usr/bin/sdcc -mpic16 -p18f25j50 --fomit-frame-pointer --obanksel=2 --opt-code-size --optimize-cmp --optimize-df -I /usr/share/gptuils/lkr -I /usr/share/sdcc/include/pic16   -c -o main.o main.c
/usr/bin/sdcc -mpic16 -p18f25j50 --fomit-frame-pointer --obanksel=2 --opt-code-size --optimize-cmp --optimize-df -I /usr/share/gptuils/lkr -I /usr/share/sdcc/include/pic16   -c -o sub.o sub.c
/usr/bin/sdcc --fomit-frame-pointer --obanksel=2 --opt-code-size --optimize-cmp --optimize-df --use-crt=crt0i.o -Wl-s18f25j50.lkr,-m -mpic16 -p18f25j50 \
        main.o sub.o -o test.hex -llibio18f25j50.lib -llibc18f.lib


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

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=100599&aid=3041150&group_id=599