Segfault on Raspberry Pi

[htruong]

I'm trying to compile your branch on Raspberry Pi Zero.

SDL2 2.0.7 (latest) was compiled per instructions here:

https://solarianprogrammer.com/2015/01/22/raspberry-pi-raspbian-getting-started-sdl-2/

The SDL2 example runs fine on OpenGL ES.

BasiliskII was compiled with

./configure --enable-sdl-audio --enable-sdl-framework --enable-sdl-video --disable-vosf --without-mon --without-esd --without-gtk --disable-nls

I transferred a working Mac image to the Pi.

$ ./BasiliskII 
Basilisk II V1.0 by Christian Bauer et al.                                                                                                                                                   
Reading ROM file...                                                                                                                                                                          
WARNING: Cannot open /dev/cdrom (No such file or directory)                                                                                                                                  
Using SDL/alsa audio output                                                                                                                                                                  
Using SDL_Renderer driver: opengles2                                                                                                                                                         
VOSF acceleration is not profitable on this platform, disabling it                                                                                                                           
Segmentation fault

There was a mouse cursor on the left of the screen, seems like SDL2 initialized fine.

$ gdb --args ./BasiliskII 
GNU gdb (Raspbian 7.12-6) 7.12.0.20161007-git
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./BasiliskII...done.
(gdb) run
Starting program: /home/pi/development/macemu/BasiliskII/src/Unix/BasiliskII 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/arm-linux-gnueabihf/libthread_db.so.1".
Basilisk II V1.0 by Christian Bauer et al.
[New Thread 0xb6b01450 (LWP 652)]
[New Thread 0xb61ff450 (LWP 653)]
[New Thread 0xb59ff450 (LWP 654)]
[New Thread 0xb51ff450 (LWP 655)]
[New Thread 0xb48f5450 (LWP 656)]
Reading ROM file...
WARNING: Cannot open /dev/cdrom (No such file or directory)
[New Thread 0xafdff450 (LWP 657)]
Using SDL/alsa audio output
Using SDL_Renderer driver: opengles2

Thread 1 "BasiliskII" received signal SIGSEGV, Segmentation fault.
video_vosf_profitable (duration_p=0x0, n_page_faults_p=0x0)
    at ./../CrossPlatform/video_vosf.h:251
251                                     addr[0] = 0; // Trigger Screen_fault_handler()

(gdb) print addr
$1 = (uint8 *) 0xaf00a000 ""

I wonder if you have any idea what it was? I was able to compile and run it on my laptop, BTW.

[htruong]

I see, somehow the configure script doesn't honor --disable-vosf or --enable-vosf=false.

Changed the config.h to comment out ENABLE_VOSF solves the problem... I wonder why the configure script does that though.