VBCC Reference to undefined symbol __ctors / __dtors

[Cyprian]

Hi All,


I have faced an issue with VBCC and undefined symbol __ctors / __dtors.
I've tried a simple example like Hello World and more advanced example with window/gadget management and they show the same errors.
This is my first attempt to code Amiga with C, and unfortunately I have no idea how to fix that.
Thanks

I use VBCC (vbcc_bin_win64.zip from http://sun.hasenbraten.de/vbcc/ )


Sources for Target is taken from:
https://github.com/deplinenoise/amiga-sdk


My command line:
vc.exe +amigasdk -cpu=68000 hello.c -o hello



Error messages for C code below:

vc.lib(_main.c): In "__main":
 Error 21: vc.lib(_main.c) (CODE+0xb6): Reference to undefined symbol __ctors.
vc.lib(_main.c): In "__Exit":
Error 21: vc.lib(_main.c) (CODE+0x6): Reference to undefined symbol __dtors.
Error 21: vc.lib(_main.c) (CODE+0xc): Reference to undefined symbol __dtors.
vc.lib(stdlib/malloc.c): In "_malloc":
Error 21: vc.lib(stdlib/malloc.c) (CODE+0x64): Reference to undefined symbol _LibAllocPooled.
Error 21: vc.lib(stdlib/malloc.c) (CODE+0x3c): Reference to undefined symbol _LibCreatePool.
vc.lib(stdlib/malloc.c): In "__freemem":
Error 21: vc.lib(stdlib/malloc.c) (CODE+0x10): Reference to undefined symbol _LibDeletePool.
vc.lib(stdlib/malloc.c): In "_free":
Error 21: vc.lib(stdlib/malloc.c) (CODE+0xa6): Reference to undefined symbol _LibFreePooled.
vlink -bamigahunk -x -Bstatic -Cvbcc -nostdlib   -L"%VBCC%/targets/amiga-sdk-master/clib" -Z -mrel   "%VBCC%/targets/amiga-sdk-master/clib/startup.o" "C:\TEMP\vbcc068c.o"     -s -Rshort -lvc -o hello failed
  Press any key to continue . . .

C Code:

#include <stdio.h>

int main() {
   // printf() displays the string inside quotation
   printf("Hello, World!");
   return 0;
 }

Target:

-cc=vbccm68k -D__AMIGA__ -D__VBCC__ -quiet %s -o= %s %s -O=%ld -I"%%VBCC%%/targets/amiga-sdk-master/sdkinclude" -I"%%VBCC%%/targets/amiga-sdk-master/netinclude"
-ccv=vbccm68k -D__AMIGA__ -D__VBCC__ %s -o= %s %s -O=%ld -I"%%VBCC%%/targets/amiga-sdk-master/sdkinclude" -I"%%VBCC%%/targets/amiga-sdk-master/netinclude"
-as=vasmm68k_mot -quiet -Fhunk -phxass %s -o %s -I"%%VBCC%%/targets/amiga-sdk-master/sdkinclude"
-asv=vasmm68k_mot -Fhunk -phxass %s -o %s -I"%%VBCC%%/targets/amiga-sdk-master/sdkinclude"
-rm=del /f %s
-rmv=del /f %s
-ld=vlink -bamigahunk -x -Bstatic -Cvbcc -nostdlib -L"%%VBCC%%/targets/amiga-sdk-master/clib" -Z -mrel "%%VBCC%%/targets/amiga-sdk-master/clib/startup.o" %s %s -lvc -o %s
-l2=vlink -bamigahunk -x -Bstatic -Cvbcc -nostdlib -L"%%VBCC%%/targets/amiga-sdk-master/clib" %s %s -o %s
-ldv=vlink -bamigahunk -t -x -Bstatic -Cvbcc -nostdlib -L"%%VBCC%%/targets/amiga-sdk-master/clib" "%%VBCC%%/targets/amiga-sdk-master/clib/startup.o" %s %s -lvc -o %s
-l2v=vlink -bamigahunk -t -x -Bstatic -Cvbcc -nostdlib -L"%%VBCC%%/targets/amiga-sdk-master/clib" %s %s -o %s
-ldnodb=-s -Rshort
-ul=-l%s
-cf=-F%s
-ml=500

[phx]

Originally Posted by Cyprian

I have faced an issue with VBCC and undefined symbol __ctors / __dtors.
(...)
Sources for Target is taken from:
https://github.com/deplinenoise/amiga-sdk

Don't know your reasons for using that, and not the latest m68k-amigaos or m68k-kick13 target from http://sun.hasenbraten.de/vbcc/ . But did you notice it is 12 years old?

There may have been some changes since then. One of them was that vlink renamed

__ctors

to

___ctors

. Probably for SAS/C-compatibility.

[Cyprian]

Originally Posted by phx

But did you notice it is 12 years old?

good point. I missed the update date.
Can you recommend something newer ?

[phx]

Right on top of the vbcc release page, you find:

• vbcc_target_m68k-amiga.lha: http://phoenix.owl.de/vbcc/2022-05-2...8k-amigaos.lha
• vbcc_target_m68k-kick13.lha: http://phoenix.owl.de/vbcc/2022-05-2...68k-kick13.lha

[Cyprian]

thanks
, now I see following error message:

error 248 in line 5 of "proto\intuition.h": file 'exec\types.h' not found

and actually there is neither "exec" folder nor "types.h" file in that vbcc_target_m68k-amigaos.lha

I have an access to NDK13 / NDK3.2 / NDK39. Should I copy one of them INCLUDE folder to "\vbcc_target_m68k-amigaos\targets\m68k-amigaos"?


----EDIT----
fixed,
I've just copied NDK3.2 includes and added " +aos68k -lamiga -lauto" to vc.exe commandline

[phx]

Originally Posted by Cyprian

there is neither "exec" folder nor "types.h" file in that vbcc_target_m68k-amigaos.lha

It comes without the AmigaOS NDK. Reasons are:

• High chance that you already got it
• You can select the NDK which you prefer (3.2, 3.9, 3.1)
• Keep the target archive small
• Possible Copyright issues (so we're on the safe side)

I have an access to NDK13 / NDK3.2 / NDK39. Should I copy one of them INCLUDE folder to "\vbcc_target_m68k-amigaos\targets\m68k-amigaos"?

Either that, or copy it to a different place and enter the path with

-I...

into your config file.
BTW, NDK13 is not recommended for m68k-amigaos. You should use the m68k-kick13 target with it.

[Cyprian]

thanks @phx