devkitPro

Posted: **Wed Mar 13, 2024 9:08 pm**

Hello, trying a SDL2 bm example for GC and getting this error:

Main.cpp
linking ... red.elf
C:/devkitPro/devkitPPC/bin/../lib/gcc/powerpc-eabi/13.2.0/../../../../powerpc-eabi/bin/ld.exe: C:/devkitPro/devkitPPC/bin/../lib/gcc/powerpc-eabi/13.2.0/../../../../powerpc-eabi/lib/crtmain.o: in function `__crtmain':
crtmain.c:(.text.__crtmain+0x3c): undefined reference to `main'
collect2.exe: error: ld returned 1 exit status
make[1]: *** [C:\devkitPro\devkitPPC/gamecube_rules:31: /c/projects/128-Bit/gamecube/red/red.elf] Error 1
make: *** [Makefile:102: build] Error 2

Code: Select all

#include <gccore.h>
#include <SDL2/sdl.h>

int main(void)  {
    if (SDL_Init(SDL_INIT_VIDEO) != 0) {
        SDL_Log("error: Failed to initialize");
        return 1;
    }

    // Create a window
    SDL_Window *window = SDL_CreateWindow("GameCube SDL2 Example", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_SHOWN);
    if (!window) {
        SDL_Log("SDL_CreateWindow Error: %s\n", SDL_GetError());
        SDL_Quit();
        return 1;
    }

    // Main loop
    SDL_Event event;
    int quit = 0;
    while (!quit) {
        while (SDL_PollEvent(&event)) {
            if (event.type == SDL_QUIT) {
                quit = 1;
            }
        }
    }

    // Cleanup
    SDL_DestroyWindow(window);
    SDL_Quit();
 
    return 0;
}

any clue ?
thanks in advance

Posted: **Fri Mar 15, 2024 9:08 pm**

After trying some stuff i got to point i get the message

linking ... home.elf
/opt/devkitpro/devkitPPC/bin/../lib/gcc/powerpc-eabi/13.2.0/../../../../powerpc-eabi/bin/ld: /opt/devkitpro/portlibs/gamecube/lib/libSDL2main.a(SDL_gamecube_main.o): in function `main':
/home/davem/projects/devkitpro/pacman-packages/gamecube/SDL2/src/SDL2-2.28.5/_build/../src/main/gamecube/SDL_gamecube_main.c:49:(.text.startup.main+0x48): undefined reference to `SDL_main'
collect2: error: ld returned 1 exit status
make[1]: *** [/opt/devkitpro/devkitPPC/gamecube_rules:31: /home/home.elf] Error 1
make: *** [Makefile:106: build] Error 2

using the Makefile with this configs

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------

CFLAGS = -g -O2 -Wall $(MACHDEP) $(INCLUDE) `$(PREFIX)pkg-config --cflags sdl2`
CXXFLAGS = $(CFLAGS)

#LDFLAGS = -g $(MACHDEP) -Wl,-Map,$(notdir $@).map
LDFLAGS = -g $(MACHDEP) -Wl,-Map,$(notdir $@).map -Wl,--section-start,.init=0x81000000

#---------------------------------------------------------------------------------
# any extra libraries we wish to link with the project -logg
#---------------------------------------------------------------------------------
LIBS := -lharfbuzz -lm -lfreetype -lbz2 -lpng16 -lz -ljpeg -laesnd -lfat -logc -lm -lvorbisidec -lmodplug -lstdc++ -lmpg123 -lopusfile -lopus -lFLAC -logg `$(PREFIX)pkg-config --libs sdl2`

and the code is:

Code: Select all

#include <gccore.h>
#include <SDL2/SDL.h>

int main(void)  {

    if (SDL_Init(SDL_INIT_VIDEO) != 0) {
        SDL_Log("error: Failed to initialize");
        return 1;
    }

    // Create a window
    SDL_Window *window = SDL_CreateWindow("NGC SDL2 Example", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_SHOWN);
    if (!window) {
        SDL_Log("SDL_CreateWindow Error: %s\n", SDL_GetError());
        SDL_Quit();
        return 1;
    }

    // Main loop
    SDL_Event event;
    int quit = 0;
    while (!quit) {
        while (SDL_PollEvent(&event)) {
            if (event.type == SDL_QUIT) {
                quit = 1;
            }
        }
    }

    // Cleanup
    SDL_DestroyWindow(window);
    SDL_Quit();
 
    return 0;
}

any help ?

thank in advance.

Posted: **Fri Mar 15, 2024 9:35 pm**

I did this work around:

Code: Select all

int main(void);
int SDL_main(int argc, char *argv[]) {
    return main();
}

int main(void) {...

and it is working.

devkitPro

Trying bare minimum SDL2 example

Trying bare minimum SDL2 example

Re: Trying bare minimum SDL2 example

Re: Trying bare minimum SDL2 example