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Calculator Community => Casio Calculators => Topic started by: blue_bear_94 on March 04, 2013, 05:37:33 pm

Title: Linker error - Can't use stdlib.h or math.h functions!
Post by: blue_bear_94 on March 04, 2013, 05:37:33 pm

When I try to use stdlib.h functions (regardless of whether I #include <stdlib.h> or not), I get linker errors like these:

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bullets.o: In function '_freeList':
bullets.c:(.text+0x384): undefined reference to '_free'
bullets.o: In function '_createNode':
bullets.c:(.text+0x39c): undefined reference to '_malloc'
Same for math.h functions. I also have the fxcglib installed. Are these functions not implemented yet?

Thanks in advance!

Title: Re: Linker error - Can't use stdlib.h or math.h functions!
Post by: Juju on March 04, 2013, 11:46:44 pm

How did you compiled your program? What's the gcc command line used to compile this?

Title: Re: Linker error - Can't use stdlib.h or math.h functions!
Post by: AngelFish on March 05, 2013, 12:38:49 am

Both malloc and free are implemented in <stdlib.h>, but try including the raw library in your build folder and using

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#include "stdlib.h" to see if that fixes the problem. Otherwise, you're not calling the linker properly.

Title: Re: Linker error - Can't use stdlib.h or math.h functions!
Post by: blue_bear_94 on March 05, 2013, 03:51:25 pm

Quote from: Juju on March 04, 2013, 11:46:44 pm

How did you compiled your program? What's the gcc command line used to compile this?

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> sh3eb-elf-gcc bullets.o posnmath.o starvak2.o xpo.o -mb -m4a-nofpu -mhitachi -nostdlib -TC:/Users/Kook/Desktop/TISTUFF/PrizmSDK-0.3/common/prizm.ld -Wl,-static -Wl,-gc-sections -LC:/Users/Kook/Desktop/TISTUFF/PrizmSDK-0.3/lib -lfxcg -lgcc -o C:/Users/Kook/Desktop/TISTUFF/PrizmSDK-0.3/projects/starvak2/starvak2.bin For some reason it's ignoring the standard libs. However, I can't change this because the make.bat file calls make.exe in the /bin folder.

Quote from: Qwerty.55 on March 05, 2013, 12:38:49 am

Both malloc and free are implemented in <stdlib.h>, but try including the raw library in your build folder and using

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#include "stdlib.h" to see if that fixes the problem. Otherwise, you're not calling the linker properly.

Will try!


Edit: tried it, and got the same error.

Title: Re: Linker error - Can't use stdlib.h or math.h functions!
Post by: Juju on March 05, 2013, 04:25:35 pm

Try -lc in the command line?

Title: Re: Linker error - Can't use stdlib.h or math.h functions!
Post by: blue_bear_94 on March 05, 2013, 04:43:34 pm

Well, I use the make.bat file, which calls make.exe, so using -lc here doesn't work.

Title: Re: Linker error - Can't use stdlib.h or math.h functions!
Post by: blue_bear_94 on March 07, 2013, 05:30:48 pm

Deleting the -nostdlib flag in /common/prizm_rules and calling make.bat again resulted in these errors:

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...: In function 'stack_k':
(.text+0x50): undefined reference to '_stack'
..._end_k; end
_main_k; __setup_argv_and_call_main
_atexit_k; _atexit
And it goes on and on.