[REPLY]-->[dfrizel] SDL2 does not initialize at all and throws a SIGSEGV stoppin

The initialisation code is this:
""
int init(SDL_Renderer * gRenderer, SDL_Window * gWindow)
{
int success= 1;

if ( SDL_Init(SDL_INIT_VIDEO) < 0 )
{
printf(" SDL could not initialise! SDl_Error : %s\n",SDL_GetError());
success = 0;
}
else
{
gWindow =
SDL_CreateWindow(“NIBBLES>>>0”,SDL_WINDOWPOS_UNDEFINED,SDL_WINDOWPOS_UNDEFINED,SCREEN_WIDTH,SCREEN_HEIGHT,SDL_WINDOW_SHOWN);
if ( gWindow == NULL)
{
printf(“Window could not be created! SDL_Error: %s\n”,SDL_GetError());
success = 0;
}
else
{
gRenderer = SDL_CreateRenderer(gWindow,-1,SDL_RENDERER_SOFTWARE);
if (gRenderer == NULL )
{
success = 0;
printf(“Renderer could not be created! SDL_Error: %s\n”,SDL_GetError());
}
}
}
return success;
}

"“
My OS
”“
Linux crunchbang 3.2.0-4-amd64 #1 SMP Debian 3.2.65-1+deb7u2 x86_64
GNU/Linux
”"
When SDL tries to run some functions during the execution of the game, the
required source file is not found.
These src files:
getenv.c, pthread_key_create.c, pthread_getspecific.c, clock_gettime.c,
malloc.c, pthread_mutex_init.c, forward.c,
pthread_mutex_lock.c, sigaction.c,
and others also.

Backtrace ( when malloc.c :file not found )
#0 _int_malloc (av=0x7ffff78b5e40, bytes=40) at malloc.c:4317
#1 0x00007ffff75a9012 in __libc_calloc (n=,
elem_size=) at malloc.c:4094
#2 0x00007ffff7b9e754 in SDL_CreateMutex_REAL () at
/home/devesh/downloads/SDL2-2.0.3/src/thread/pthread/SDL_sysmutex.c:50
#3 0x00007ffff7b0ede5 in SDL_StartEventLoop () at
/home/devesh/downloads/SDL2-2.0.3/src/events/SDL_events.c:175
#4 0x00007ffff7ad8825 in SDL_InitSubSystem_REAL (flags=16416) at
/home/devesh/downloads/SDL2-2.0.3/src/SDL.c:144
#5 0x0000000000401a01 in init (gRenderer=0x0, gWindow=0x0) at
src/nibbles.c:244
#6 0x0000000000401caf in main () at src/nibbles.c:346

At "line 173: if (SDL_VideoInit(NULL) < 0) { "
Backtrace:
#0 SDL_InitSubSystem_REAL (flags=16416) at
/home/devesh/downloads/SDL2-2.0.3/src/SDL.c:173
#1 0x0000000000401a01 in init (gRenderer=0x0, gWindow=0x0) at
src/nibbles.c:244
#2 0x0000000000401caf in main () at src/nibbles.c:346

I think it’s not initialising because none of the files are found .

Then comes --> Cannot find bounds of current function

Backtrace
#0 0x00007ffff7de1e22 in ?? () from /lib64/ld-linux-x86-64.so.2
#1 0x00007ffff7de4bd6 in ?? () from /lib64/ld-linux-x86-64.so.2
#2 0x00007ffff7dea212 in ?? () from /lib64/ld-linux-x86-64.so.2
#3 0x00007ffff7deabd6 in ?? () from /lib64/ld-linux-x86-64.so.2
#4 0x00007ffff7de92dc in ?? () from /lib64/ld-linux-x86-64.so.2
#5 0x00007ffff7def168 in ?? () from /lib64/ld-linux-x86-64.so.2
#6 0x00007ffff7deabd6 in ?? () from /lib64/ld-linux-x86-64.so.2
#7 0x00007ffff7deeb4a in ?? () from /lib64/ld-linux-x86-64.so.2
#8 0x00007ffff70a9f66 in dlopen_doit (a=) at dlopen.c:67
#9 0x00007ffff7deabd6 in ?? () from /lib64/ld-linux-x86-64.so.2
#10 0x00007ffff70aa2ec in _dlerror_run (operate=0x7ffff70a9f00
<dlopen_doit>, args=0x7fffffffd880) at dlerror.c:164
#11 0x00007ffff70a9ee1 in __dlopen (file=,
file at entry=0x7ffff7bae428
"libX11.so.6", mode=, mode at entry=2) at dlopen.c:88
#12 0x00007ffff7b8215b in SDL_LoadObject_REAL (sofile=0x7ffff7bae428
"libX11.so.6") at
/home/devesh/downloads/SDL2-2.0.3/src/loadso/dlopen/SDL_sysloadso.c:36
#13 0x00007ffff7b859f1 in SDL_X11_LoadSymbols () at
/home/devesh/downloads/SDL2-2.0.3/src/video/x11/SDL_x11dyn.c:175
#14 0x00007ffff7b97c76 in X11_Available () at
/home/devesh/downloads/SDL2-2.0.3/src/video/x11/SDL_x11video.c:309
#15 0x00007ffff7b809a1 in SDL_VideoInit_REAL (driver_name=,
driver_name at entry=0x0) at
/home/devesh/downloads/SDL2-2.0.3/src/video/SDL_video.c:466
#16 0x00007ffff7ad886f in SDL_InitSubSystem_REAL (flags=16416) at
/home/devesh/downloads/SDL2-2.0.3/src/SDL.c:173
#17 0x0000000000401a01 in init (gRenderer=0x0, gWindow=0x0) at
src/nibbles.c:244
#18 0x0000000000401caf in main () at src/nibbles.c:346

I ran gdb again and next’d to the point where the segfault signal is
received.

‘’'
if ( SDL_Init(SDL_INIT_VIDEO) < 0 )
(gdb)

Program received signal SIGSEGV, Segmentation fault.

0x00007ffff7b227cd in SDL_DestroyRenderer_REAL (renderer=0x7) at
/home/devesh/downloads/SDL2-2.0.3/src/render/SDL_render.c:1841
1841 CHECK_RENDERER_MAGIC(renderer, );

(gdb) bt

#0 0x00007ffff7b227cd in SDL_DestroyRenderer_REAL (renderer=0x7) at
/home/devesh/downloads/SDL2-2.0.3/src/render/SDL_render.c:1841
#1 0x0000000000401ad8 in close (gRenderer=0x7, gWindow=0x2) at
src/nibbles.c:272
#2 0x00007ffff607bdde in xcb_disconnect () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3 0x00007ffff62b3027 in XCloseDisplay () from
/usr/lib/x86_64-linux-gnu/libX11.so.6
#4 0x00007ffff7b97c9f in X11_Available () at
/home/devesh/downloads/SDL2-2.0.3/src/video/x11/SDL_x11video.c:312
#5 0x00007ffff7b809a1 in SDL_VideoInit_REAL (driver_name=,
driver_name at entry=0x0) at
/home/devesh/downloads/SDL2-2.0.3/src/video/SDL_video.c:466
#6 0x00007ffff7ad886f in SDL_InitSubSystem_REAL (flags=16416) at
/home/devesh/downloads/SDL2-2.0.3/src/SDL.c:173
#7 0x0000000000401a01 in init (gRenderer=0x0, gWindow=0x0) at
src/nibbles.c:244
#8 0x0000000000401caf in main () at src/nibbles.c:346

‘’'
Hmmm.