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sdauth
Guru
Joined: 19 Sep 2018
Posts: 569
Location: Ásgarðr
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 Posted: Fri Feb 24, 2023 7:05 pm Post subject: [SOLVED] jgemu (jollygood) crashes. |
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EDIT: Solved. https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=3537e031216808bf98fa5c220593d0c390dbe4e1
Hello,
I recently installed jollygood emulator but I'm unable to start any game. I tried on my main desktop (bdver2) and on my laptop (core2)
All I get is this (example) :
| Code: | $ jollygood -v -w -c mednafen "Final Fantasy VI.sfc"
*** buffer overflow detected ***: terminated |
I tried different emulator cores and different games, same result.
Any clue ? Or legit bug ?
live ebuild also crashes by the way (same error)
If anyone could try and tell me if it works for you, that would be great before I report it on the bug tracker.
Last edited by sdauth on Tue Mar 07, 2023 7:30 am; edited 4 times in total |
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Hu
Moderator
Joined: 06 Mar 2007
Posts: 21639
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| Posted: Fri Feb 24, 2023 7:20 pm Post subject: |
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| Buffer overflow is always a bug. The only question is whether it is a bug in the application, or a bug in the compiler that built it. The latter has been very uncommon for many years. Please provide the output of emerge --verbose --info package-providing-jollygood, so that we can review how it was built. |
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sdauth
Guru
Joined: 19 Sep 2018
Posts: 569
Location: Ásgarðr
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| Posted: Fri Feb 24, 2023 9:30 pm Post subject: |
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| Code: | Portage 3.0.44 (python 3.10.9-final-0, default/linux/amd64/17.1/no-multilib/hardened, gcc-12, glibc-2.36-r5, 6.1.12-gentoo-hardened x86_64)
CFLAGS="-march=bdver2 -O2 -pipe" |
jgrf-1.0.0 log
bsnes-jg-1.1.0 log
mednafen-jg-1.31.0 log
All other ebuilds (cores to use with jollygood) build flawlessly as well, no error. |
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sdauth
Guru
Joined: 19 Sep 2018
Posts: 569
Location: Ásgarðr
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| Posted: Fri Feb 24, 2023 9:46 pm Post subject: |
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Found the problem.
You need to build jgrf with -D_FORTIFY_SOURCE=2 -U_GLIBCXX_ASSERTIONS.
There was a news item regarding this when I upgraded gcc 12 a month ago. Well, it seems to be the first package needing that 
Added this to :
/etc/portage/env/fortifyfix
| Code: | CFLAGS="${COMMON_FLAGS} -D_FORTIFY_SOURCE=2"
CXXFLAGS="${COMMON_FLAGS} -D_FORTIFY_SOURCE=2 -U_GLIBCXX_ASSERTIONS" |
and :
/etc/portage/package.env/jgrf
| Code: | | games-emulation/jgrf fortifyfix |
emerge -1 --usepkg=n jgrf
Now it starts fine 
EDIT :
Mmh. On my desktop (bdver2), no issue, no more crashes after fortifyfix applied as shown above. Game starts fine (windowed & fullscreen)
On the other hand, on my core2 system, I get this. (with both windowed & fullscreen option)
It seems to be related to libepoxy, which I compiled again for good measure, it still crashes though. Strange as it doesn't happen on my desktop...
| Code: | jollygood -v -w -c mednafen "Final Fantasy VI.sfc"
D: Disc inserted: 0
D: Framebuffer width: 512, Framebuffer height: 480
D: Nominal width: 292, Nominal height: 224
i: Core: mednafen (Mednafen 1.31.0)
d: Core System: snes
d: Core Path: /usr/lib64/jollygood/mednafen.so
d: Core Asset Path: /usr/share/jollygood/mednafen
d: Creating window with dimensions: 876 x 672
w: Failed to create glcontext: No OpenGL context has been made current
jollygood: ../libepoxy-1.5.10/src/dispatch_common.c:872: epoxy_get_proc_address: Assertion `0 && "Couldn't find current GLX or EGL context.\n"' failed. |
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sam_
Developer
Joined: 14 Aug 2020
Posts: 1678
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| Posted: Fri Mar 10, 2023 1:22 pm Post subject: |
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For completeness, this was bug 896382. I'm not sure if OP reported it or someone else, but if you do need to temporarily apply a workaround, please file a bug for these. We want to know about them and fix them properly.
(It's also nice to see newly-added packages being used!) |
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