GP32 Devkitarm And Gpsdk_eabi Linking Problems

[kidchaos2k6]

Hi,

Well, here i am again... By some chances of destiny im having some time to spare with gp32 coding again... and i have decided a new direction after failures in any other ways: This time im trying to work from scratch using the latest GPSDK_EABI posted by DJWillis some time ago and the latest dkarm that the devkitpro updater installed on my machine (yesterday february 7th in the evening).. I will try to make the tests on visual studio 6 and on dkarm at the same time...

By now a clean "void GpMain (void * arg){}" compiles on VC6, but i cannot compile this on dkarm, see make result and such below:

unsigned int HEAPSTART;
unsigned int HEAPEND;

int main (int arg_len, char * arg_v)
{
}

arm-eabi-g++ -marm -march=armv4t -mtune=arm920t -mapcs -fomit-frame-pointer -f short-enums -ffast-math -fshort-double -mstructure-size-boundary=32 -mno-thumb-i nterwork -IGPSDK_EABI/include -Wno-multichar -c src/gpstrtp/gpstartup.cpp -o obj/gpstartup.o

arm-eabi-gcc -Wl,--strip-debug -o SDLtest.elf obj/gpstartup.o -specs=gp32_gpsdk.specs -Wl,-Map,SDLtest.map -LGPSDK_EABI/lib -lgpgraphic -lgpgraphic16 -lgpmem -lgpos -lgpstdlib -lgpstdio -lgpsound -lgpg_ex01 -lgpfont -lgpfont16
GPSDK_EABI/lib\libgpstdlib.a(asm_gpstdlib.o): In function `GpGraphicModeSet':
(.text+0xd0): undefined reference to `_gp_os_res_lock'
GPSDK_EABI/lib\libgpstdlib.a(asm_gpstdlib.o): In function `GpGraphicModeSet':
(.text+0xf0): undefined reference to `_gp_os_res_unlock'
GPSDK_EABI/lib\libgpstdlib.a(asm_gpstdlib.o): In function `GpLcdLock':
(.text+0x194): undefined reference to `_gp_os_res_lock'
GPSDK_EABI/lib\libgpstdlib.a(asm_gpstdlib.o): In function `GpLcdUnlock':
(.text+0x1b4): undefined reference to `_gp_os_res_unlock'
GPSDK_EABI/lib\libgpstdlib.a(gpstdlib.o): In function `_system_timer_init':
gpstdlib.c.text+0x180): undefined reference to `_GPOSTickISR'
c:/devkitpro/devkitarm/bin/../lib/gcc/arm-eabi/4.1.1/../../../../arm-eabi/lib\li bsysbase.a(sbrk.o): In function `_sbrk':
(.text+0x7c): undefined reference to `__end__'
collect2: ld returned 1 exit status
make: *** [SDLtest.elf] Error 1


during the last year i have managed to understand better the tricks of the makefiles... so i dont think its a problem of these, by the way trying to compile the example ex000 of the EABI_GPSDK i got this error too:

arm-eabi-gcc -Wl,--strip-debug -o ex000.elf ../../gpstartup.o gpmain.o -specs=gp32_gpsdk.specs -Wl,-Map,ex000.map -L../../lib -lgpgraphic -lgpgraphic16 -lgpmem -lgpos -lgpstdlib -lgpstdio -lgpsound -lgpg_ex01 -lgpfont -lgpfont16
c:/devkitpro/devkitarm/bin/../lib/gcc/arm-eabi/4.1.1/../../../../arm-eabi/lib\libsysbase.a(sbrk.o): In function `_sbrk':
(.text+0x7c): undefined reference to `__end__'
collect2: ld returned 1 exit status
make: *** [ex000.elf] Error 1


As usual, i will appreciatte any help

Regards

@B^)>

 

[rtb7]

...

c:/devkitpro/devkitarm/bin/../lib/gcc/arm-eabi/4.1.1/../../../../arm-eabi/lib\libsysbase.a(sbrk.o): In function `_sbrk':
(.text+0x7c): undefined reference to `__end__'
collect2: ld returned 1 exit status
make: *** [ex000.elf] Error 1

...

Same error with all my projects when I try to compile and link them with the new devkitarm_r20.
It works fine with r19b.
I think this kind of problems occured with r18 too.

Thor

 

[kidchaos2k6]

Part of the problem it's solved...

For the record this is what Wintermute told me:

> This one is related to some recent changes I made in the libgloss
> patches. Some users were having problems with malloc not working when a
> variable named end was used so I added underscores. Unfortunately I
> neglected to update the gp32 linkscripts with the new name.
>
> You can edit the linkscripts ( gp32.ld and gp32_gpsdk.ld found in <path
> to devkitARM>/arm-eabi/lib> ) to fix this.
>
> find the line that says
>
> end = __bss_end;
>
> change it to
>
> __end__ = __bss_end;

AND on the next line (this is for dumbs like me):

/*PROVIDE (end = end);*/

changed to

PROVIDE (end = __end__);

Ill check the other problems which may be on my makefile...

Regards,


@B^)>

 

[kidchaos2k6]

and the other part also,

it seemed that the GPSDK libs required the GpPredefinedStackGet function to be defined somewhere inside my code (gpstartup.c)...

Sorry for the common mistake...

Regards