Homebrew Errors when compiling sftdlib apps

[mashers]

I'm trying to get sftdlib working in the Homebrew launcher so I can change the font. I've installed SF2D, Freetype and sftdlib into my devkitpro environment. When I try to build the Homebrew Launcher, I get an error on the console saying "undefined reference to `sftd_load_font_mem'". The strange thing is that this method is defined in sftd.h, which is included at the top of my c file. If I try to compile the sample included with sftdlib then I get a load of undefined reference errors relating to libpng functions. I installed the libpng portlib but this doesn't seem to have made any difference.

Any help would be much appreciated!

 

[Garcia98]

Have you installed sftdlib (header and library must be in ctrulib folder)?
Install all the portlibs with this https://github.com/mtheall/3ds_portlibs maybe other is needed.

 

[mashers]

Hi mate,

Thanks for your reply. I have two copies of sftd.h. One is in /opt/devkitPro/portlibs/armv6k/include, and the other is in /opt/devkitPro/libstru/include. I did try installing the portlibs with the Makefile you linked to but it only seemed to build them, not actually install them, so I downloaded the individual package and installed them manually.

 

[Garcia98]

So which are the errors when you try to compile the example?

 

[mashers]

Here you go:

Spoiler: sftdlib sample build errors

iMash:~ mash$ source ~/.bashrc
iMash:~ mash$ cd Downloads/sftdlib-master/sample/
iMash:sample mash$ make
FreeSans.ttf
main.c
arm-none-eabi-gcc -MMD -MP -MF /Users/mash/Downloads/sftdlib-master/sample/build/main.d -g -Wall -O2 -mword-relocations -fomit-frame-pointer -ffast-math -march=armv6k -mtune=mpcore -mfloat-abi=hard -I/Users/mash/Downloads/sftdlib-master/sample/include -I/opt/devkitPro/libctru/include -I/opt/devkitPro/portlibs/armv6k/include -I/opt/devkitPro/portlibs/3ds/include -I/Users/mash/Downloads/sftdlib-master/sample/build -DARM11 -D_3DS -c /Users/mash/Downloads/sftdlib-master/sample/source/main.c -o main.o
linking sftd_sample.elf
/opt/devkitPro/portlibs/armv6k/lib/libfreetype.a(sfnt.o): In function `error_callback':
sfnt.c:(.text+0x4760): undefined reference to `png_get_error_ptr'
sfnt.c:(.text+0x4778): undefined reference to `png_set_longjmp_fn'
/opt/devkitPro/portlibs/armv6k/lib/libfreetype.a(sfnt.o): In function `Load_SBit_Png.isra.14':
sfnt.c:(.text+0x69f4): undefined reference to `png_create_read_struct'
sfnt.c:(.text+0x6a08): undefined reference to `png_create_info_struct'
sfnt.c:(.text+0x6a28): undefined reference to `png_set_longjmp_fn'
sfnt.c:(.text+0x6a4c): undefined reference to `png_destroy_read_struct'
sfnt.c:(.text+0x6a70): undefined reference to `png_set_read_fn'
sfnt.c:(.text+0x6a7c): undefined reference to `png_read_info'
sfnt.c:(.text+0x6aac): undefined reference to `png_get_IHDR'
sfnt.c:(.text+0x6b34): undefined reference to `png_destroy_read_struct'
sfnt.c:(.text+0x6b78): undefined reference to `png_set_palette_to_rgb'
sfnt.c:(.text+0x6b8c): undefined reference to `png_set_expand_gray_1_2_4_to_8'
sfnt.c:(.text+0x6b9c): undefined reference to `png_get_valid'
sfnt.c:(.text+0x6bd8): undefined reference to `png_set_interlace_handling'
sfnt.c:(.text+0x6be8): undefined reference to `png_set_filler'
sfnt.c:(.text+0x6bf4): undefined reference to `png_read_update_info'
sfnt.c:(.text+0x6c2c): undefined reference to `png_get_IHDR'
sfnt.c:(.text+0x6c5c): undefined reference to `png_set_read_user_transform_fn'
sfnt.c:(.text+0x6ce4): undefined reference to `png_read_image'
sfnt.c:(.text+0x6cfc): undefined reference to `png_read_end'
sfnt.c:(.text+0x6d08): undefined reference to `png_set_gray_to_rgb'
sfnt.c:(.text+0x6d14): undefined reference to `png_set_packing'
sfnt.c:(.text+0x6d20): undefined reference to `png_set_tRNS_to_alpha'
sfnt.c:(.text+0x6d48): undefined reference to `png_set_strip_16'
sfnt.c:(.text+0x6d58): undefined reference to `png_set_read_user_transform_fn'
/opt/devkitPro/portlibs/armv6k/lib/libfreetype.a(sfnt.o): In function `read_data_from_FT_Stream':
sfnt.c:(.text+0x6e2c): undefined reference to `png_get_io_ptr'
sfnt.c:(.text+0x6e64): undefined reference to `png_get_error_ptr'
sfnt.c:(.text+0x6e78): undefined reference to `png_error'
collect2: error: ld returned 1 exit status
make[1]: *** [/Users/mash/Downloads/sftdlib-master/sample/sftd_sample.elf] Error 1
make: *** [build] Error 2
iMash:sample mash$

Edit - code tags

 

[Garcia98]

Here you go:

Spoiler: sftdlib sample build errors

iMash:~ mash$ source ~/.bashrc
iMash:~ mash$ cd Downloads/sftdlib-master/sample/
iMash:sample mash$ make
FreeSans.ttf
main.c
arm-none-eabi-gcc -MMD -MP -MF /Users/mash/Downloads/sftdlib-master/sample/build/main.d -g -Wall -O2 -mword-relocations -fomit-frame-pointer -ffast-math -march=armv6k -mtune=mpcore -mfloat-abi=hard -I/Users/mash/Downloads/sftdlib-master/sample/include -I/opt/devkitPro/libctru/include -I/opt/devkitPro/portlibs/armv6k/include -I/opt/devkitPro/portlibs/3ds/include -I/Users/mash/Downloads/sftdlib-master/sample/build -DARM11 -D_3DS -c /Users/mash/Downloads/sftdlib-master/sample/source/main.c -o main.o
linking sftd_sample.elf
/opt/devkitPro/portlibs/armv6k/lib/libfreetype.a(sfnt.o): In function `error_callback':
sfnt.c:(.text+0x4760): undefined reference to `png_get_error_ptr'
sfnt.c:(.text+0x4778): undefined reference to `png_set_longjmp_fn'
/opt/devkitPro/portlibs/armv6k/lib/libfreetype.a(sfnt.o): In function `Load_SBit_Png.isra.14':
sfnt.c:(.text+0x69f4): undefined reference to `png_create_read_struct'
sfnt.c:(.text+0x6a08): undefined reference to `png_create_info_struct'
sfnt.c:(.text+0x6a28): undefined reference to `png_set_longjmp_fn'
sfnt.c:(.text+0x6a4c): undefined reference to `png_destroy_read_struct'
sfnt.c:(.text+0x6a70): undefined reference to `png_set_read_fn'
sfnt.c:(.text+0x6a7c): undefined reference to `png_read_info'
sfnt.c:(.text+0x6aac): undefined reference to `png_get_IHDR'
sfnt.c:(.text+0x6b34): undefined reference to `png_destroy_read_struct'
sfnt.c:(.text+0x6b78): undefined reference to `png_set_palette_to_rgb'
sfnt.c:(.text+0x6b8c): undefined reference to `png_set_expand_gray_1_2_4_to_8'
sfnt.c:(.text+0x6b9c): undefined reference to `png_get_valid'
sfnt.c:(.text+0x6bd8): undefined reference to `png_set_interlace_handling'
sfnt.c:(.text+0x6be8): undefined reference to `png_set_filler'
sfnt.c:(.text+0x6bf4): undefined reference to `png_read_update_info'
sfnt.c:(.text+0x6c2c): undefined reference to `png_get_IHDR'
sfnt.c:(.text+0x6c5c): undefined reference to `png_set_read_user_transform_fn'
sfnt.c:(.text+0x6ce4): undefined reference to `png_read_image'
sfnt.c:(.text+0x6cfc): undefined reference to `png_read_end'
sfnt.c:(.text+0x6d08): undefined reference to `png_set_gray_to_rgb'
sfnt.c:(.text+0x6d14): undefined reference to `png_set_packing'
sfnt.c:(.text+0x6d20): undefined reference to `png_set_tRNS_to_alpha'
sfnt.c:(.text+0x6d48): undefined reference to `png_set_strip_16'
sfnt.c:(.text+0x6d58): undefined reference to `png_set_read_user_transform_fn'
/opt/devkitPro/portlibs/armv6k/lib/libfreetype.a(sfnt.o): In function `read_data_from_FT_Stream':
sfnt.c:(.text+0x6e2c): undefined reference to `png_get_io_ptr'
sfnt.c:(.text+0x6e64): undefined reference to `png_get_error_ptr'
sfnt.c:(.text+0x6e78): undefined reference to `png_error'
collect2: error: ld returned 1 exit status
make[1]: *** [/Users/mash/Downloads/sftdlib-master/sample/sftd_sample.elf] Error 1
make: *** [build] Error 2
iMash:sample mash$

Edit - code tags

Are you sure that libpng is properly installed?

 

[elhobbs]

These are linker errors. you need to add the libraries to your makefile.

 

[mashers]

You're right - it wasn't linked in the makefile. I added -lpng and got lots of errors about VFP register arguments. I changed from hard to soft float and then started getting this error:

iMash:sample mash$ make clean
clean ...
iMash:sample mash$ make
FreeSans.ttf
main.c
arm-none-eabi-gcc -MMD -MP -MF /Users/mash/Downloads/sftdlib-master/sample/build/main.d -g -Wall -O2 -mword-relocations -fomit-frame-pointer -ffast-math -march=armv6k -mtune=mpcore -mfloat-abi=soft -I/Users/mash/Downloads/sftdlib-master/sample/include -I/opt/devkitPro/libctru/include -I/opt/devkitPro/portlibs/armv6k/include -I/opt/devkitPro/portlibs/3ds/include -I/Users/mash/Downloads/sftdlib-master/sample/build -DARM11 -D_3DS -c /Users/mash/Downloads/sftdlib-master/sample/source/main.c -o main.o
linking sftd_sample.elf
/opt/devkitPro/devkitARM/bin/../lib/gcc/arm-none-eabi/4.9.2/../../../../arm-none-eabi/bin/ld: cannot find 3dsx_crt0.o: No such file or directory
collect2: error: ld returned 1 exit status
make[1]: *** [/Users/mash/Downloads/sftdlib-master/sample/sftd_sample.elf] Error 1
make: *** [build] Error 2

which apparently means I have to use hard float... So I really have no idea how to get this working. I'm actually wondering if the problem is that I'm using a Mac. Do you think it would make any difference if I set up devkitpro in a Linux VM and try building there?

 

[Garcia98]

These are linker errors. you need to add the libraries to your makefile.

In the example libraries are already in the Makefile (obviously).

You're right - it wasn't linked in the makefile. I added -lpng and got lots of errors about VFP register arguments. I changed from hard to soft float and then started getting this error:

iMash:sample mash$ make clean
clean ...
iMash:sample mash$ make
FreeSans.ttf
main.c
arm-none-eabi-gcc -MMD -MP -MF /Users/mash/Downloads/sftdlib-master/sample/build/main.d -g -Wall -O2 -mword-relocations -fomit-frame-pointer -ffast-math -march=armv6k -mtune=mpcore -mfloat-abi=soft -I/Users/mash/Downloads/sftdlib-master/sample/include -I/opt/devkitPro/libctru/include -I/opt/devkitPro/portlibs/armv6k/include -I/opt/devkitPro/portlibs/3ds/include -I/Users/mash/Downloads/sftdlib-master/sample/build -DARM11 -D_3DS -c /Users/mash/Downloads/sftdlib-master/sample/source/main.c -o main.o
linking sftd_sample.elf
/opt/devkitPro/devkitARM/bin/../lib/gcc/arm-none-eabi/4.9.2/../../../../arm-none-eabi/bin/ld: cannot find 3dsx_crt0.o: No such file or directory
collect2: error: ld returned 1 exit status
make[1]: *** [/Users/mash/Downloads/sftdlib-master/sample/sftd_sample.elf] Error 1
make: *** [build] Error 2

which apparently means I have to use hard float... So I really have no idea how to get this working. I'm actually wondering if the problem is that I'm using a Mac. Do you think it would make any difference if I set up devkitpro in a Linux VM and try building there?

Lol I asked you what were the errors of sftd example, not the errors of your project

 

[mashers]

Lol I asked you what were the errors of sftd example, not the errors of your project

That's what I posted - the errors are all from trying to compile just the sample.

 

[Garcia98]

That's what I posted - the errors are all from trying to compile just the sample.

So in the Makefile every needed library is there xD

 

[mashers]

I think I might have taken -lpng out of the makefile to try to resolve errors before installing libpng properly since I didn't think libpng would be required for text. In any case, the most recent error is now the relevant one.

 

[Garcia98]

I think I might have taken -lpng out of the makefile to try to resolve errors before installing libpng properly since I didn't think libpng would be required for text. In any case, the most recent error is now the relevant one.

Did you also changed -mfloat-abi=hard to -mfloat-abi=softfp?

 

[mashers]

Actually I put -mfloat-abi-soft, but I've just changed it to softfp and got the same error:

iMash:sample mash$ make
FreeSans.ttf
main.c
arm-none-eabi-gcc -MMD -MP -MF /Users/mash/Downloads/sftdlib-master/sample/build/main.d -g -Wall -O2 -mword-relocations -fomit-frame-pointer -ffast-math -march=armv6k -mtune=mpcore -mfloat-abi=softfp -I/Users/mash/Downloads/sftdlib-master/sample/include -I/opt/devkitPro/libctru/include -I/opt/devkitPro/portlibs/armv6k/include -I/opt/devkitPro/portlibs/3ds/include -I/Users/mash/Downloads/sftdlib-master/sample/build -DARM11 -D_3DS -c /Users/mash/Downloads/sftdlib-master/sample/source/main.c -o main.o
linking sftd_sample.elf
/opt/devkitPro/devkitARM/bin/../lib/gcc/arm-none-eabi/4.9.2/../../../../arm-none-eabi/bin/ld: cannot find 3dsx_crt0.o: No such file or directory
collect2: error: ld returned 1 exit status
make[1]: *** [/Users/mash/Downloads/sftdlib-master/sample/sftd_sample.elf] Error 1
make: *** [build] Error 2
iMash:sample mash$

 

[Garcia98]

Actually I put -mfloat-abi-soft, but I've just changed it to softfp and got the same error:

iMash:sample mash$ make
FreeSans.ttf
main.c
arm-none-eabi-gcc -MMD -MP -MF /Users/mash/Downloads/sftdlib-master/sample/build/main.d -g -Wall -O2 -mword-relocations -fomit-frame-pointer -ffast-math -march=armv6k -mtune=mpcore -mfloat-abi=softfp -I/Users/mash/Downloads/sftdlib-master/sample/include -I/opt/devkitPro/libctru/include -I/opt/devkitPro/portlibs/armv6k/include -I/opt/devkitPro/portlibs/3ds/include -I/Users/mash/Downloads/sftdlib-master/sample/build -DARM11 -D_3DS -c /Users/mash/Downloads/sftdlib-master/sample/source/main.c -o main.o
linking sftd_sample.elf
/opt/devkitPro/devkitARM/bin/../lib/gcc/arm-none-eabi/4.9.2/../../../../arm-none-eabi/bin/ld: cannot find 3dsx_crt0.o: No such file or directory
collect2: error: ld returned 1 exit status
make[1]: *** [/Users/mash/Downloads/sftdlib-master/sample/sftd_sample.elf] Error 1
make: *** [build] Error 2
iMash:sample mash$

Lol, you must use hard

Why do you modify things in the example? The example will compile correctly if your environment is properly set

 

[mashers]

Well I've just extracted sftdlib from the github archive again and got exactly the same errors ("VFP register arguments" errors when using hard float, "cannot find 3dsx_crt0.o" when using softfp).

 

[Garcia98]

Well I've just extracted sftdlib from the github archive again and got exactly the same errors ("VFP register arguments" errors when using hard float, "cannot find 3dsx_crt0.o" when using softfp).

Your libraries are also built with -mfloat-abi=hard?

 

[mashers]

I don't know. How do I tell?

 

[elhobbs]

After changing the float from soft to hard you need to rebuild everything. Libraries and your project - make clean && make

 

[Garcia98]

^That^