Hard to tell from just that. Can you make a standalone testcase showing the issue that I can build and debug locally?
- Alon On Thu, Feb 27, 2014 at 1:06 AM, Mark Callow <[email protected]>wrote: > Due to issues with my program I compiled with SAFE_HEAP=1. The single > message "Assertion failed: undefined" appears in the stdout box. Looking at > the stack trace in the console window I can see that it comes from > attempting to load an unaligned i32 value. The offending code is in > WinCreate in esUtil.c (which I borrowed from the tests directory). It is > > static Display *x_display = NULL; > WinCreate(ESContext *esContext, const char* title) > { > ... > x_display = XOpenDisplay(NULL) > if (x_display == NULL) > { > return EGL_FALSE; > } > root = DefaultRootWindow(x_display); <=== this is the line where the > assert happens > > Is anyone aware of an issue with the X emulation? The corresponding JS > code is > > var $9=SAFE_HEAP_LOAD(8, "%struct XDisplay*", 0, 0); > var $10=$9; > var $11=(($10+132)|0); > var $12=SAFE_HEAP_LOAD($11, "i32", 0, 0); <=== this is the line where the > assert happens. > > 132 (line 4) is a multiple of 4 so the only way $11 could not be a > multiple of 4 is if the struct XDisplay is not itself 4-byte aligned which > looks like a possible compiler bug. > > ------------------------------------------------------------------ > > Before I noticed that a stack trace was printed in the console, I set a > breakpoint in assert to find out where the assertion was coming from and > reloaded the page. The breakpoint was hit several times in other places and > with other real messages before I got fed up, removed the breakpoint and > hit continue. That is when the above message finally appeared. None of the > other messages appeared in the console or stdout box. The ones I observed > and noted before I removed the breakpoint were > > "Cannot fallback to non-typed array case: Code is too specialized" > "Typed arrays 2 must be run on a little-endian system" // I *am* running > on a little-endian system > An assert in staticAlloc with a message: assert(!staticSealed) > > What do these mean, why was nothing printed in the stdout box or console > and why did they not abort execution? > > I am using Firefox 27.0.1 > > Regards > > -Mark > -- > 注意：この電子メールには、株式会社エイチアイの機密情報が含まれている場合が有ります。正式なメール受信者では無い場合はメール複製、 > 再配信または情報の使用を固く禁じております。エラー、手違いでこのメールを受け取られましたら削除を行い配信者にご連絡をお願いいたし ます. > > NOTE: This electronic mail message may contain confidential and privileged > information from HI Corporation. If you are not the intended recipient, any > disclosure, photocopying, distribution or use of the contents of the > received information is prohibited. If you have received this e-mail in > error, please notify the sender immediately and permanently delete this > message and all related copies. > > -- > You received this message because you are subscribed to the Google Groups > "emscripten-discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
