Thanks! I think I see what's wrong. This PR should fix it, please test if you can,
https://github.com/emscripten-core/emscripten/pull/9880 - Alon On Wed, Nov 20, 2019 at 7:29 AM Eric Mandel <[email protected]> wrote: > I (laboriously) added print statements to find the library routine that > eventually fails and it looks like the non-asm Emscripten might indeed be > trying to call a function where there is no function. Here is a snippet of > the code that is being run, indicating where print statements are located: > > fprintf(stdout, "2\n"); fflush(stdout); > > if (*status == NOT_IMAGE) > *status = tstatus; /* ignore 'unknown extension type' error */ > else if (*status > 0) > return(*status); > > fprintf(stdout, "3\n"); fflush(stdout); > > /* > the logical end of the header is 80 bytes before the current > position, > minus any trailing blank keywords just before the END keyword. > */ > (fptr->Fptr)->headend = (fptr->Fptr)->nextkey - (80 * (nspace + 1)); > > fprintf(stdout, "4 [%d %d]\n", (int)(fptr->Fptr)->headend, > (int)(fptr->Fptr)->nextkey); fflush(stdout); > > /* the data unit begins at the beginning of the next logical block */ > (fptr->Fptr)->datastart = (((fptr->Fptr)->nextkey - 80) / 2880 + 1) > * 2880; > > fprintf(stdout, "5\n"); fflush(stdout); > > and here is the output in the Chrome debugger for the non-wasm case: > > [image: Screen Shot 2019-11-20 at 10.13.49 AM.png] > > The values of 400 and 480 displayed in print statement #4 are correct for > this astronomical image, so things look right at that point. But the next > line of code should simply set datastart to the first 2880 byte block after > the image header, and it looks like it might be calling a non-existent > routine instead. So we never reach print statement #5. > > Note that headend, nextkey, and datastart are all declared as long long, > if that is any hint. > > For comparison, here is the Chrome debugger output from the wasm build: > > [image: Screen Shot 2019-11-20 at 10.24.35 AM.png] > > > Let me know how I can help. > > -- > 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]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/emscripten-discuss/39322779-c9c5-4fbc-9231-203200ffe086%40googlegroups.com > <https://groups.google.com/d/msgid/emscripten-discuss/39322779-c9c5-4fbc-9231-203200ffe086%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/emscripten-discuss/CAEX4NpR0RO_dZr%3Dpb7uE6JHzZX_81iFtjXMU9aKRCCv%3DxNgG_g%40mail.gmail.com.
