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SIGBUS at startup

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Started by Sijmen October 08, 2005 03:29 PM

5 comments, last by Sijmen 18 years, 6 months ago

Sijmen

231

Author

October 08, 2005 03:29 PM

I've written a little test program with XCode on OS X. I've included the SDL.framework framework so that I can use SDL from that program. For testing I kept the main() function emtpy, just return 0. However, when I compile and run I get a 'SIGBUS' error and the program exits. Any idea what could be wrong?

igni ferroque

415

October 08, 2005 04:01 PM

Run it in the debugger so you can see where the signal was raised.

Free Mac Mini (I know, I'm a tool)

Sijmen

231

Author

October 10, 2005 03:28 AM

I have no previous experience with this debugger, but I started it with the debugger, and this is where it crashed. The line where the debugger pointed at is marked.

0x00002620  &lt;+0156>  addis	r2,r31,00x00002624  &lt;+0160>  lwz	r2,27208(r2)0x00002628  &lt;+0164>  lwz	r12,0(r2)0x0000262c  &lt;+0168>  cmpwi	cr7,r12,00x00002630  &lt;+0172>  beq-	cr7,0x263c <start+184>0x00002634  &lt;+0176>  mtctr	r120x00002638  &lt;+0180>  bctrl0x0000263c  &lt;+0184>  bl	0x84e0 <dyld_stub___keymgr_dwarf2_register_sections>0x00002640  &lt;+0188>  addis	r2,r31,00x00002644  &lt;+0192>  lwz	r12,27192(r2)0x00002648  &lt;+0196>  lwz	r0,0(r12)0x0000264c  &lt;+0200>  cmpwi	cr7,r0,00x00002650  &lt;+0204>  beq+	cr7,0x265c <start+216>0x00002654  &lt;+0208>  mtctr	r120x00002658  &lt;+0212>  bctrl0x0000265c  &lt;+0216>  bl	0x2840 <start+700>0x00002660  &lt;+0220>  bl	0x294c <start+968>0x00002664  &lt;+0224>  addis	r3,r31,00x00002668  &lt;+0228>  addi	r3,r3,250360x0000266c  &lt;+0232>  addi	r4,r1,560x00002670  &lt;+0236>  bl	0x2b60 <start+1500>0x00002674  &lt;+0240>  lwz	r3,56(r1)0x00002678  &lt;+0244>  cmpwi	cr7,r3,00x0000267c  &lt;+0248>  beq-	cr7,0x2684 <start+256>0x00002680  &lt;+0252>  bl	0x8500 <dyld_stub_atexit>0x00002684  &lt;+0256>  li	r0,00x00002688  &lt;+0260>  addis	r2,r31,00x0000268c  &lt;+0264>  lwz	r2,27204(r2)0x00002690  &lt;+0268>  stw	r0,0(r2)0x00002694  &lt;+0272>  lwz	r10,0(r29)0x00002698  &lt;+0276>  cmpwi	cr7,r10,00x0000269c  &lt;+0280>  bne+	cr7,0x2724 <start+416>0x000026a0  &lt;+0284>  b	0x26e8 <start+356>0x000026a4  &lt;+0288>  mr	r11,r20x000026a8  &lt;+0292>  mr	r2,r90x000026ac  &lt;+0296>  cmpwi	cr7,r0,470x000026b0  &lt;+0300>  bne+	cr7,0x26b8 <start+308>0x000026b4  &lt;+0304>  mr	r8,r110x000026b8  &lt;+0308>  lbz	r0,0(r2)0x000026bc  &lt;+0312>  addi	r9,r2,10x000026c0  &lt;+0316>  extsb.	r0,r00x000026c4  &lt;+0320>  bne+	0x26a4 <start+288>0x000026c8  &lt;+0324>  cmpwi	cr7,r8,00x000026cc  &lt;+0328>  beq-	cr7,0x26e0 <start+348>0x000026d0  &lt;+0332>  addi	r0,r8,10x000026d4  &lt;+0336>  addis	r2,r31,00x000026d8  &lt;+0340>  stw	r0,27188(r2)0x000026dc  &lt;+0344>  b	0x26e8 <start+356>0x000026e0  &lt;+0348>  addis	r2,r31,00x000026e4  &lt;+0352>  stw	r10,27188(r2)0x000026e8  &lt;+0356>  lwz	r0,0(r30)0x000026ec  &lt;+0360>  cmpwi	cr7,r0,00x000026f0  &lt;+0364>  bne+	cr7,0x26fc <start+376>0x000026f4  &lt;+0368>  mr	r6,r300x000026f8  &lt;+0372>  b	0x270c <start+392>0x000026fc  &lt;+0376>  mr	r6,r300x00002700  &lt;+0380>  lwzu	r0,4(r6)0x00002704  &lt;+0384>  cmpwi	cr7,r0,00x00002708  &lt;+0388>  bne+	cr7,0x2700 <start+380>0x0000270c  &lt;+0392>  mr	r3,r280x00002710  &lt;+0396>  mr	r4,r290x00002714  &lt;+0400>  mr	r5,r300x00002718  &lt;+0404>  addi	r6,r6,40x0000271c  &lt;+0408>  bl	0x2ed4 <__darwin_gcc3_preregister_frame_info+220>0x00002720  &lt;+0412>  bl	0x84c0 <dyld_stub_exit>    <== CRASH LINE0x00002724  &lt;+0416>  lbz	r0,0(r10)0x00002728  &lt;+0420>  extsb.	r0,r00x0000272c  &lt;+0424>  beq-	0x26e0 <start+348>0x00002730  &lt;+0428>  addi	r2,r10,10x00002734  &lt;+0432>  mr	r11,r100x00002738  &lt;+0436>  li	r8,00x0000273c  &lt;+0440>  b	0x26ac <start+296>0x00002740  &lt;+0444>  mflr	r00x00002744  &lt;+0448>  bcl-	20,4*cr7+so,0x2748 <start+452>0x00002748  &lt;+0452>  mflr	r120x0000274c  &lt;+0456>  addis	r12,r12,00x00002750  &lt;+0460>  mtlr	r00x00002754  &lt;+0464>  addi	r12,r12,239280x00002758  &lt;+0468>  mtctr	r120x0000275c  &lt;+0472>  bctr0x00002760  &lt;+0476>  mflr	r00x00002764  &lt;+0480>  bcl-	20,4*cr7+so,0x2768 <start+484>0x00002768  &lt;+0484>  mflr	r120x0000276c  &lt;+0488>  addis	r12,r12,00x00002770  &lt;+0492>  mtlr	r00x00002774  &lt;+0496>  addi	r12,r12,19000x00002778  &lt;+0500>  mtctr	r120x0000277c  &lt;+0504>  bctr0x00002780  &lt;+0508>  mflr	r00x00002784  &lt;+0512>  bcl-	20,4*cr7+so,0x2788 <start+516>0x00002788  &lt;+0516>  mflr	r120x0000278c  &lt;+0520>  addis	r12,r12,00x00002790  &lt;+0524>  mtlr	r00x00002794  &lt;+0528>  addi	r12,r12,239280x00002798  &lt;+0532>  mtctr	r120x0000279c  &lt;+0536>  bctr0x000027a0  &lt;+0540>  mflr	r00x000027a4  &lt;+0544>  bcl-	20,4*cr7+so,0x27a8 <start+548>0x000027a8  &lt;+0548>  mflr	r120x000027ac  &lt;+0552>  addis	r12,r12,00x000027b0  &lt;+0556>  mtlr	r00x000027b4  &lt;+0560>  addi	r12,r12,9520x000027b8  &lt;+0564>  mtctr	r120x000027bc  &lt;+0568>  bctr0x000027c0  &lt;+0572>  mflr	r00x000027c4  &lt;+0576>  bcl-	20,4*cr7+so,0x27c8 <start+580>0x000027c8  &lt;+0580>  mflr	r120x000027cc  &lt;+0584>  addis	r12,r12,00x000027d0  &lt;+0588>  mtlr	r00x000027d4  &lt;+0592>  addi	r12,r12,3880x000027d8  &lt;+0596>  mtctr	r120x000027dc  &lt;+0600>  bctr0x000027e0  &lt;+0604>  mflr	r00x000027e4  &lt;+0608>  bcl-	20,4*cr7+so,0x27e8 <start+612>0x000027e8  &lt;+0612>  mflr	r120x000027ec  &lt;+0616>  addis	r12,r12,00x000027f0  &lt;+0620>  mtlr	r00x000027f4  &lt;+0624>  addi	r12,r12,880x000027f8  &lt;+0628>  mtctr	r120x000027fc  &lt;+0632>  bctr0x00002800  &lt;+0636>  mflr	r00x00002804  &lt;+0640>  bcl-	20,4*cr7+so,0x2808 <start+644>0x00002808  &lt;+0644>  mflr	r120x0000280c  &lt;+0648>  addis	r12,r12,00x00002810  &lt;+0652>  mtlr	r00x00002814  &lt;+0656>  addi	r12,r12,237680x00002818  &lt;+0660>  mtctr	r120x0000281c  &lt;+0664>  bctr

Any idea what could be wrong? Note that this program is nothing but two unused classes, a main function with return 0, linked with SDL.

Marianne

163

October 10, 2005 10:18 AM

SDl for mac requires you add the files SDL_main.h and SDL_main.m to your project - did you do it? in XCode to create a SDl project i just suggest you use file -> new project -> SDl applciation. sdl should have installed a XCode template on your computer - i recommand you use it!

good luck

Sijmen

231

Author

October 10, 2005 12:07 PM

Quote:Original post by Marianne
SDl for mac requires you add the files SDL_main.h and SDL_main.m to your project - did you do it? in XCode to create a SDl project i just suggest you use file -> new project -> SDl applciation. sdl should have installed a XCode template on your computer - i recommand you use it!

good luck

Now you say so, that template is there, including those files.

I wonder though, I'm using C++ - not Objective C. Why can't it work just like I'm used to it working? Include headers -> link with libs and go?

At least it works now, thanks a great deal

choffstein

1,090

October 10, 2005 12:09 PM

Because the build for SDL on macosx requires carbon (or cocoa, I can't remember which) -- and that is objective - c, hence the SDLMain.h and SDLMain.m being necessary.

Sijmen

231

Author

October 11, 2005 02:36 AM

Okay. So when I've finished a test version of the game I don't need those files to run, that's nice. Thanks for the help!

SIGBUS at startup

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