Re: ui/cocoa.m compile error (Cocoa -> SDL)

[Liviu Ionescu]

On 17 Jan 2022, at 13:35, Peter Maydell <peter.maydell@linaro.org> wrote:

(2) the "use SDL" option seems to have worked for at least
some people in the past:

SDL worked nicely for me too in the past, qemu-system-gnuarmeclipse was configured with SDL for all platforms and it worked unchanged in the last 4-5 years.

here's a bug report from 2019
https://bugs.launchpad.net/qemu/+bug/1847906 where the
reporter said that cocoa didn't work for him but SDL did,
for instance.

Then perhaps it is a misunderstanding from my part, if I try to start the vexpress-a9 machine using the line copied from Thomas' presentation, the console shows, it prints "Guest has not initialized the display yet" using the PC-like font, than it crashes with:

```

Exception Note:        EXC_CORPSE_NOTIFY

Application Specific Information:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'NSWindow drag regions should only be invalidated on the Main Thread!'
abort() called
terminating with uncaught exception of type NSException


Application Specific Backtrace 0:
0   CoreFoundation                      0x00007ff8040acf0b __exceptionPreprocess + 242
1   libobjc.A.dylib                     0x00007ff803e0db9d objc_exception_throw + 48
2   CoreFoundation                      0x00007ff8040d58ca -[NSException raise] + 9
3   AppKit                              0x00007ff806a86f31 -[NSWindow(NSWindow_Theme) _postWindowNeedsToResetDragMarginsUnlessPostingDisabled] + 321
4   AppKit                              0x00007ff806a91185 -[NSView setFrameSize:] + 2315
5   AppKit                              0x00007ff806ad3ce8 -[NSTitlebarView setFrameSize:] + 86
6   AppKit                              0x00007ff806aa1d5c -[NSView setFrame:] + 404
7   AppKit                              0x00007ff806ad3c8b -[NSTitlebarView resizeWithOldSuperviewSize:] + 95
8   AppKit                              0x00007ff806ab35ef -[NSView resizeSubviewsWithOldSize:] + 501
9   AppKit                              0x00007ff806a90ef0 -[NSView setFrameSize:] + 1654
10  AppKit                              0x00007ff806ab42a1 -[NSTitlebarContainerView setFrameSize:] + 147
11  AppKit                              0x00007ff806aa1d5c -[NSView setFrame:] + 404
12  AppKit                              0x00007ff806ab3c76 -[NSView resizeWithOldSuperviewSize:] + 697
13  AppKit                              0x00007ff806ab35ef -[NSView resizeSubviewsWithOldSize:] + 501
14  AppKit                              0x00007ff806a90ef0 -[NSView setFrameSize:] + 1654
15  AppKit                              0x00007ff806ab18e5 -[NSThemeFrame setFrameSize:] + 518
16  AppKit                              0x00007ff806ab0f0c -[NSWindow _oldPlaceWindow:fromServer:] + 697
17  AppKit                              0x00007ff806aaf8f3 -[NSWindow _setFrameCommon:display:fromServer:] + 2696
18  libSDL2-2.0.0.dylib                 0x00000001042c3aea Cocoa_SetWindowSize + 282
19  libSDL2-2.0.0.dylib                 0x0000000104294d76 SDL_SetWindowSize_REAL + 198
```

If you think that --with-sdl should work on macOS too, I can try to investigate, perhaps it is only a small mistake somewhere.

Liviu