Crash in Xwayland support when built against libc++

[jbeich]

Affects libc++ at least from LLVM 14-16.

Clang backtrace

$ export CC=clang CXX=clang++ CXXFLAGS=-stdlib=libc++
$ meson setup /tmp/hyprland_build
$ meson compile -C /tmp/hyprland_build
$ meson install -C /tmp/hyprland_build 

$ Hyprland -c /dev/null &
$ DISPLAY=:0 glxgears
[...]
00:00:09.926 [xwayland/server.c:108] Starting Xwayland on :0
New XWayland Surface created (class (null)).
Registered signal for owner 753c1c00: 4fc1efe0 -> 753c1c80 (owner: XWayland Window)
Registered signal for owner 753c1c00: 4fc1eff0 -> 753c1d00 (owner: XWayland Window)
Registered signal for owner 753c1c00: 4fc1ef60 -> 753c1d80 (owner: XWayland Window)
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
(EE) failed to read Wayland events: Broken pipe
XIO:  fatal IO error 2 (No such file or directory) on X server ":0"
      after 41 requests (41 known processed) with 0 events remaining.
[1]   Segmentation fault      Hyprland

* thread #1, name = 'Hyprland', stop reason = signal SIGSEGV: invalid address (fault address: 0x0)
    frame #0: 0x00000008357afe84 libc.so.7`strlen + 84
libc.so.7`strlen:
->  0x8357afe84 <+84>: movq   (%rdi), %r11
    0x8357afe87 <+87>: leaq   (%r11,%r8), %rcx
    0x8357afe8b <+91>: notq   %r11
    0x8357afe8e <+94>: andq   %r11, %rcx
(lldb) bt
* thread #1, name = 'Hyprland', stop reason = signal SIGSEGV: invalid address (fault address: 0x0)
  * frame #0: 0x00000008357afe84 libc.so.7`strlen + 84
    frame #1: 0x0000000000334455 Hyprland`std::__1::__constexpr_strlen[abi:v160000](__str=0x0000000000000000) at cstring:114:10
    frame #2: 0x00000000003343b5 Hyprland`std::__1::char_traits<char>::length(__s=0x0000000000000000) at char_traits.h:220:12
    frame #3: 0x0000000000332604 Hyprland`std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>::basic_string[abi:v160000]<std::nullptr_t>(this=Summary Unavailable, __s=0x0000000000000000) at string:882:17
    frame #4: 0x00000000003ddc13 Hyprland`CHyprXWaylandManager::getAppIDClass(this=0x000000084faf28c0, pWindow=0x00000008753c1c00) at XWaylandManager.cpp:117:24
    frame #5: 0x000000000049df55 Hyprland`CWindow::createToplevelHandle(this=0x00000008753c1c00) at Window.cpp:134:88
    frame #6: 0x0000000000402576 Hyprland`Events::listener_mapWindow(owner=0x00000008753c1c00, data=0x000000084fc1ee00) at Windows.cpp:70:14
    frame #7: 0x00000000003ac80b Hyprland`decltype(std::declval<void (*&)(void*, void*)>()(std::declval<void*>(), std::declval<void*>())) std::__1::__invoke[abi:v160000]<void (*&)(void*, void*), void*, void*>(__f=0x00000008753c1cb8, __args=0x000000082127f6c0, __args=0x000000082127f6b8) at invoke.h:394:23
    frame #8: 0x00000000003ac7b5 Hyprland`void std::__1::__invoke_void_return_wrapper<void, true>::__call<void (*&)(void*, void*), void*, void*>(__args=0x00000008753c1cb8, __args=0x000000082127f6c0, __args=0x000000082127f6b8) at invoke.h:487:9
    frame #9: 0x00000000003ac77d Hyprland`std::__1::__function::__alloc_func<void (*)(void*, void*), std::__1::allocator<void (*)(void*, void*)>, void (void*, void*)>::operator()[abi:v160000](this=0x00000008753c1cb8, __arg=0x000000082127f6c0, __arg=0x000000082127f6b8) at function.h:185:16
    frame #10: 0x00000000003ab949 Hyprland`std::__1::__function::__func<void (*)(void*, void*), std::__1::allocator<void (*)(void*, void*)>, void (void*, void*)>::operator()(this=0x00000008753c1cb0, __arg=0x000000082127f6c0, __arg=0x000000082127f6b8) at function.h:356:12
    frame #11: 0x0000000000528112 Hyprland`std::__1::__function::__value_func<void (void*, void*)>::operator()[abi:v160000](this=0x00000008753c1cb0, __args=0x000000082127f6c0, __args=0x000000082127f6b8) const at function.h:510:16
    frame #12: 0x0000000000527cc3 Hyprland`std::__1::function<void (void*, void*)>::operator()(this= Function = Events::listener_mapWindow(void*, void*) , __arg=0x00000008753c1c00, __arg=0x000000084fc1ee00) const at function.h:1156:12
    frame #13: 0x00000000005277d8 Hyprland`CHyprWLListener::emit(this=0x00000008753c1c80, data=0x000000084fc1ee00) at WLListener.cpp:52:5
    frame #14: 0x00000000005277a9 Hyprland`handleWrapped(listener=0x00000008753c1c80, data=0x000000084fc1ee00) at WLListener.cpp:9:21
    frame #15: 0x0000000823d8ee2a libwayland-server.so.0`wl_signal_emit_mutable(signal=0x000000084fc1efe0, data=0x000000084fc1ee00) at wayland-server.c:2179:3
    frame #16: 0x00000000005e83fe Hyprland`xwayland_surface_set_mapped(xsurface=0x000000084fc1ee00, mapped=true) at xwm.c:852:3
    frame #17: 0x00000000005eb70f Hyprland`xwayland_surface_handle_commit(listener=0x000000084fc1ee78, data=0x000000084fb57480) at xwm.c:863:2
    frame #18: 0x0000000823d8ee2a libwayland-server.so.0`wl_signal_emit_mutable(signal=0x000000084fb57748, data=0x000000084fb57480) at wayland-server.c:2179:3
    frame #19: 0x00000000005aba86 Hyprland`surface_commit_state(surface=0x000000084fb57480, next=0x000000084fb57600) at wlr_compositor.c:500:2
    frame #20: 0x00000000005ad207 Hyprland`surface_handle_commit(client=0x000000088c4f62c0, resource=0x00000008754cf080) at wlr_compositor.c:519:3
    frame #21: 0x00000008371d861a libffi.so.8`ffi_call_unix64 at unix64.S:104
    frame #22: 0x00000008371d78b2 libffi.so.8`ffi_call_int(cif=0x000000082127fa40, fn=(Hyprland`surface_handle_commit at wlr_compositor.c:510), rvalue=0x0000000000000000, avalue=0x000000082127fa70, closure=0x0000000000000000) at ffi64.c:673:3
    frame #23: 0x00000008371d7422 libffi.so.8`ffi_call(cif=0x000000082127fa40, fn=(Hyprland`surface_handle_commit at wlr_compositor.c:510), rvalue=0x0000000000000000, avalue=0x000000082127fa70) at ffi64.c:710:3
    frame #24: 0x0000000823d94aa8 libwayland-server.so.0`wl_closure_invoke(closure=0x000000088c57ce00, flags=2, target=0x00000008754cf080, opcode=6, data=0x000000088c4f62c0) at connection.c:1025:2
    frame #25: 0x0000000823d8c6dd libwayland-server.so.0`wl_client_connection_data(fd=23, mask=1, data=0x000000088c4f62c0) at wayland-server.c:437:4
    frame #26: 0x0000000823d908c7 libwayland-server.so.0`wl_event_source_fd_dispatch(source=0x000000084fbabf00, ep=0x000000082127fcf0) at event-loop.c:112:9
    frame #27: 0x0000000823d91fd4 libwayland-server.so.0`wl_event_loop_dispatch(loop=0x000000084fb2b320, timeout=-1) at event-loop.c:1027:4
    frame #28: 0x0000000823d8dc6f libwayland-server.so.0`wl_display_run(display=0x000000084fb7e000) at wayland-server.c:1431:3
    frame #29: 0x0000000000472c48 Hyprland`CCompositor::startCompositor(this=0x000000084fb54380) at Compositor.cpp:419:5
    frame #30: 0x00000000003e7a77 Hyprland`main(argc=1, argv=0x00000008212801b8) at main.cpp:65:20
    frame #31: 0x0000000000332000 Hyprland`_start(ap=<unavailable>, cleanup=<unavailable>) at crt1_c.c:75:7
(lldb) f 4
frame #4: 0x00000000003ddc13 Hyprland`CHyprXWaylandManager::getAppIDClass(this=0x000000084faf28c0, pWindow=0x00000008753c1c00) at XWaylandManager.cpp:117:24
   114                  if (!pWindow->m_bMappedX11 || !pWindow->m_bIsMapped)
   115                      return "unmanaged X11";
   116
-> 117                  return std::string(pWindow->m_uSurface.xwayland->_class);
   118              }
   119          } else if (pWindow->m_uSurface.xdg) {
   120              if (pWindow->m_uSurface.xdg->toplevel) {
(lldb) p *pWindow->m_uSurface.xwayland
(wlr_xwayland_surface) $1 = {
  window_id = 4194306
  xwm = 0x000000087560a400
  surface_id = 0
  serial = 1
  link = {
    prev = 0x000000087560a608
    next = 0x000000087560a608
  }
  stack_link = {
    prev = 0x000000087560a618
    next = 0x000000087560a618
  }
  unpaired_link = {
    prev = 0x000000084fc1ee40
    next = 0x000000084fc1ee40
  }
  surface = 0x000000084fb57480
  surface_addon = {
    impl = 0x00000000005f63f8
    owner = 0x0000000000000000
    link = {
      prev = 0x000000084fb57788
      next = 0x00000008755cf190
    }
  }
  surface_commit = {
    link = {
      prev = 0x000000084fb57748
      next = 0x000000082127f830
    }
    notify = 0x00000000005eb6d0 (Hyprland`xwayland_surface_handle_commit at xwm.c:860)
  }
  surface_precommit = {
    link = {
      prev = 0x000000082127f830
      next = 0x000000082127f818
    }
    notify = 0x00000000005eb720 (Hyprland`xwayland_surface_handle_precommit at xwm.c:866)
  }
  x = 0
  y = 0
  width = 300
  height = 300
  saved_width = 0
  saved_height = 0
  override_redirect = false
  mapped = true
  title = 0x000000087564eea0 "glxgears"
  _class = 0x0000000000000000
  instance = 0x0000000000000000
  role = 0x0000000000000000
  startup_id = 0x0000000000000000
  pid = 3872
  has_utf8_title = false
  children = {
    prev = 0x000000084fc1eee8
    next = 0x000000084fc1eee8
  }
  parent = nullptr
  parent_link = {
    prev = 0x000000084fc1ef00
    next = 0x000000084fc1ef00
  }
  window_type = 0x0000000000000000
  window_type_len = 0
  protocols = 0x0000000000000000
  protocols_len = 0
  decorations = 0
  hints = nullptr
  size_hints = 0x00000008748d0c90
  pinging = false
  ping_timer = 0x00000008755cf100
  modal = false
  fullscreen = false
  maximized_vert = false
  maximized_horz = false
  minimized = false
  has_alpha = false
  events = {
    destroy = {
      listener_list = {
        prev = 0x00000008753c1d80
        next = 0x00000008753c1d80
      }
    }
    request_configure = {
      listener_list = {
        prev = 0x000000084fc1ef70
        next = 0x000000084fc1ef70
      }
    }
    request_move = {
      listener_list = {
        prev = 0x000000084fc1ef80
        next = 0x000000084fc1ef80
      }
    }
    request_resize = {
      listener_list = {
        prev = 0x000000084fc1ef90
        next = 0x000000084fc1ef90
      }
    }
    request_minimize = {
      listener_list = {
        prev = 0x000000084fc1efa0
        next = 0x000000084fc1efa0
      }
    }
    request_maximize = {
      listener_list = {
        prev = 0x000000084fc1efb0
        next = 0x000000084fc1efb0
      }
    }
    request_fullscreen = {
      listener_list = {
        prev = 0x000000084fc1efc0
        next = 0x000000084fc1efc0
      }
    }
    request_activate = {
      listener_list = {
        prev = 0x000000084fc1efd0
        next = 0x000000084fc1efd0
      }
    }
    map = {
      listener_list = {
        prev = 0x000000082127f758
        next = 0x00000008753c1c80
      }
    }
    unmap = {
      listener_list = {
        prev = 0x00000008753c1d00
        next = 0x00000008753c1d00
      }
    }
    set_title = {
      listener_list = {
        prev = 0x000000084fc1f000
        next = 0x000000084fc1f000
      }
    }
    set_class = {
      listener_list = {
        prev = 0x000000084fc1f010
        next = 0x000000084fc1f010
      }
    }
    set_role = {
      listener_list = {
        prev = 0x000000084fc1f020
        next = 0x000000084fc1f020
      }
    }
    set_parent = {
      listener_list = {
        prev = 0x000000084fc1f030
        next = 0x000000084fc1f030
      }
    }
    set_pid = {
      listener_list = {
        prev = 0x000000084fc1f040
        next = 0x000000084fc1f040
      }
    }
    set_startup_id = {
      listener_list = {
        prev = 0x000000084fc1f050
        next = 0x000000084fc1f050
      }
    }
    set_window_type = {
      listener_list = {
        prev = 0x000000084fc1f060
        next = 0x000000084fc1f060
      }
    }
    set_hints = {
      listener_list = {
        prev = 0x000000084fc1f070
        next = 0x000000084fc1f070
      }
    }
    set_decorations = {
      listener_list = {
        prev = 0x000000084fc1f080
        next = 0x000000084fc1f080
      }
    }
    set_override_redirect = {
      listener_list = {
        prev = 0x000000084fc1f090
        next = 0x000000084fc1f090
      }
    }
    set_geometry = {
      listener_list = {
        prev = 0x000000084fc1f0a0
        next = 0x000000084fc1f0a0
      }
    }
    ping_timeout = {
      listener_list = {
        prev = 0x000000084fc1f0b0
        next = 0x000000084fc1f0b0
      }
    }
  }
  data = 0x0000000000000000
}

GCC backtrace

$ export CC=gcc CXX=g++ CXXFLAGS=-stdlib=libc++
$ meson setup /tmp/hyprland_build
$ meson compile -C /tmp/hyprland_build
$ meson install -C /tmp/hyprland_build 

$ Hyprland -c /dev/null &
$ DISPLAY=:0 glxgears
[...]
00:00:08.395 [xwayland/server.c:108] Starting Xwayland on :0
New XWayland Surface created (class (null)).
Registered signal for owner dfcdc00: 2d34fe0 -> dfcdc80 (owner: XWayland Window)
Registered signal for owner dfcdc00: 2d34ff0 -> dfcdd00 (owner: XWayland Window)
Registered signal for owner dfcdc00: 2d34f60 -> dfcdd80 (owner: XWayland Window)
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
(EE) failed to read Wayland events: Broken pipe
XIO:  fatal IO error 2 (No such file or directory) on X server ":0"
      after 41 requests (41 known processed) with 0 events remaining.
[1]   Segmentation fault      Hyprland

(gdb) bt
#0  0x00000008019c7e84 in strlen () at /lib/libc.so.7
#1  0x000000000041a36c in std::__1::__constexpr_strlen[abi:v160000](char const*) (__str=0x0)
    at /usr/include/c++/v1/cstring:114
#2  std::__1::char_traits<char>::length(char const*) (__s=0x0)
    at /usr/include/c++/v1/__string/char_traits.h:220
#3  0x00000000005d67ef in _ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC4B7v160000IDnEEPKc
    (__s=0x0, this=0x7fffffff1630) at /usr/include/c++/v1/string:882
#4  CHyprXWaylandManager::getAppIDClass(CWindow*) (this=0x802c088c0, pWindow=0x80dfcdc00) at ../src/managers/XWaylandManager.cpp:117
#5  0x00000000008e5699 in CWindow::createToplevelHandle() (this=0x80dfcdc00) at ../src/Window.cpp:134
#6  0x0000000000629b39 in Events::listener_mapWindow(void*, void*) (owner=0x80dfcdc00, data=0x802d34e00)
    at ../src/events/Windows.cpp:70
#7  0x000000000059f0c0 in std::__1::__invoke[abi:v160000]<void (*&)(void*, void*), void*, void*>(void (*&)(void*, void*), void*&&, void*&&) (__f=@0x80dfcdcb8: 0x6289ca <Events::listener_mapWindow(void*, void*)>)
    at /usr/include/c++/v1/__functional/invoke.h:394
#8  std::__1::__invoke_void_return_wrapper<void, true>::__call<void (*&)(void*, void*), void*, void*>(void (*&)(void*, void*), void*&&, void*&&) () at /usr/include/c++/v1/__functional/invoke.h:487
#9  0x000000000059efe0 in std::__1::__function::__alloc_func<void (*)(void*, void*), std::__1::allocator<void (*)(void*, void*)>, void (void*, void*)>::operator()[abi:v160000](void*&&, void*&&)
    (__arg#1=@0x7fffffffb108: 0x802d34e00, __arg#0=@0x7fffffffb110: 0x80dfcdc00, this=0x80dfcdcb8)
    at /usr/include/c++/v1/__functional/function.h:185
#10 std::__1::__function::__func<void (*)(void*, void*), std::__1::allocator<void (*)(void*, void*)>, void (void*, void*)>::operator()(void*&&, void*&&) (this=0x80dfcdcb0, __arg#0=@0x7fffffffb110: 0x80dfcdc00, __arg#1=@0x7fffffffb108: 0x802d34e00)
    at /usr/include/c++/v1/__functional/function.h:356
#11 0x0000000000c4da05 in std::__1::__function::__value_func<void (void*, void*)>::operator()[abi:v160000](void*&&, void*&&) const
    (__args#1=@0x7fffffffb108: 0x802d34e00, __args#0=@0x7fffffffb110: 0x80dfcdc00, this=0x80dfcdcb0)
    at /usr/include/c++/v1/__functional/function.h:510
#12 std::__1::function<void (void*, void*)>::operator()(void*, void*) const
    (this=0x80dfcdcb0, __arg#0=0x80dfcdc00, __arg#1=0x802d34e00)
    at /usr/include/c++/v1/__functional/function.h:1156
#13 0x0000000000c4d355 in CHyprWLListener::emit(void*) (this=0x80dfcdc80, data=0x802d34e00) at ../src/helpers/WLListener.cpp:52
#14 0x0000000000c4cce3 in handleWrapped(wl_listener*, void*) (listener=0x80dfcdc80, data=0x802d34e00)
    at ../src/helpers/WLListener.cpp:9
#15 0x00000008010cfe2a in wl_signal_emit_mutable (signal=0x802d34fe0, data=0x802d34e00) at ../src/wayland-server.c:2179
#16 0x0000000000d9f581 in xwayland_surface_set_mapped (xsurface=0x802d34e00, mapped=true) at ../subprojects/wlroots/xwayland/xwm.c:852
#17 0x0000000000d9f5f3 in xwayland_surface_handle_commit (listener=0x802d34e78, data=0x802c6d480)
    at ../subprojects/wlroots/xwayland/xwm.c:863
#18 0x00000008010cfe2a in wl_signal_emit_mutable (signal=0x802c6d748, data=0x802c6d480) at ../src/wayland-server.c:2179
#19 0x0000000000d6c837 in surface_commit_state (surface=0x802c6d480, next=0x802c6d600)
    at ../subprojects/wlroots/types/wlr_compositor.c:500
#20 0x0000000000d6c8ed in surface_handle_commit (client=0x810c552c0, resource=0x810c24f80)
    at ../subprojects/wlroots/types/wlr_compositor.c:519
#21 0x0000000801c9b61a in ffi_call_unix64 () at ../src/x86/unix64.S:104
#22 0x0000000801c9a8b2 in ffi_call_int
    (cif=0x7fffffffb4d0, fn=0xd6c85c <surface_handle_commit>, rvalue=0x0, avalue=0x7fffffffb500, closure=0x0) at ../src/x86/ffi64.c:673
#23 0x0000000801c9a422 in ffi_call (cif=0x7fffffffb4d0, fn=0xd6c85c <surface_handle_commit>, rvalue=0x0, avalue=0x7fffffffb500)
    at ../src/x86/ffi64.c:710
#24 0x00000008010d5aa8 in wl_closure_invoke (closure=0x810d51ee0, flags=2, target=0x810c24f80, opcode=6, data=0x810c552c0)
    at ../src/connection.c:1025
#25 0x00000008010cd6dd in wl_client_connection_data (fd=24, mask=1, data=0x810c552c0) at ../src/wayland-server.c:437
#26 0x00000008010d18c7 in wl_event_source_fd_dispatch (source=0x802cc1f00, ep=0x7fffffffb780) at ../src/event-loop.c:112
#27 0x00000008010d2fd4 in wl_event_loop_dispatch (loop=0x802c41320, timeout=-1) at ../src/event-loop.c:1027
#28 0x00000008010cec6f in wl_display_run (display=0x802c94000) at ../src/wayland-server.c:1431
#29 0x00000000007c1435 in CCompositor::startCompositor() (this=0x802c6a380) at ../src/Compositor.cpp:419
#30 0x00000000005ec5b9 in main(int, char**) (argc=1, argv=0x7fffffffea28) at ../src/main.cpp:65
(gdb) f 4
#4  CHyprXWaylandManager::getAppIDClass (this=0x802c088c0, pWindow=0x80dfcdc00) at ../src/managers/XWaylandManager.cpp:117
117                     return std::string(pWindow->m_uSurface.xwayland->_class);
(gdb) p *pWindow->m_uSurface.xwayland
$1 = {window_id = 4194306, xwm = 0x80e216400, surface_id = 0, serial = 1, link = {prev = 0x80e216608, next = 0x80e216608},
  stack_link = {prev = 0x80e216618, next = 0x80e216618}, unpaired_link = {prev = 0x802d34e40, next = 0x802d34e40},
  surface = 0x802c6d480, surface_addon = {impl = 0x1081d70 <surface_addon_impl>, owner = 0x0, link = {prev = 0x802c6d788,
      next = 0x80e1db310}}, surface_commit = {link = {prev = 0x802c6d748, next = 0x7fffffffb2c0},
    notify = 0xd9f5b2 <xwayland_surface_handle_commit>}, surface_precommit = {link = {prev = 0x7fffffffb2c0, next = 0x7fffffffb2a8},
    notify = 0xd9f5f6 <xwayland_surface_handle_precommit>}, x = 0, y = 0, width = 300, height = 300, saved_width = 0,
  saved_height = 0, override_redirect = false, mapped = true, title = 0x80e24a850 "glxgears", _class = 0x0, instance = 0x0,
  role = 0x0, startup_id = 0x0, pid = 10331, has_utf8_title = false, children = {prev = 0x802d34ee8, next = 0x802d34ee8},
  parent = 0x0, parent_link = {prev = 0x802d34f00, next = 0x802d34f00}, window_type = 0x0, window_type_len = 0, protocols = 0x0,
  protocols_len = 0, decorations = 0, hints = 0x0, size_hints = 0x80dcbec90, pinging = false, ping_timer = 0x80e1db280, modal = false,
  fullscreen = false, maximized_vert = false, maximized_horz = false, minimized = false, has_alpha = false, events = {destroy = {
      listener_list = {prev = 0x80dfcdd80, next = 0x80dfcdd80}}, request_configure = {listener_list = {prev = 0x802d34f70,
        next = 0x802d34f70}}, request_move = {listener_list = {prev = 0x802d34f80, next = 0x802d34f80}}, request_resize = {
      listener_list = {prev = 0x802d34f90, next = 0x802d34f90}}, request_minimize = {listener_list = {prev = 0x802d34fa0,
        next = 0x802d34fa0}}, request_maximize = {listener_list = {prev = 0x802d34fb0, next = 0x802d34fb0}}, request_fullscreen = {
      listener_list = {prev = 0x802d34fc0, next = 0x802d34fc0}}, request_activate = {listener_list = {prev = 0x802d34fd0,
        next = 0x802d34fd0}}, map = {listener_list = {prev = 0x7fffffffb1e8, next = 0x80dfcdc80}}, unmap = {listener_list = {
        prev = 0x80dfcdd00, next = 0x80dfcdd00}}, set_title = {listener_list = {prev = 0x802d35000, next = 0x802d35000}}, set_class = {
      listener_list = {prev = 0x802d35010, next = 0x802d35010}}, set_role = {listener_list = {prev = 0x802d35020,
        next = 0x802d35020}}, set_parent = {listener_list = {prev = 0x802d35030, next = 0x802d35030}}, set_pid = {listener_list = {
        prev = 0x802d35040, next = 0x802d35040}}, set_startup_id = {listener_list = {prev = 0x802d35050, next = 0x802d35050}},
    set_window_type = {listener_list = {prev = 0x802d35060, next = 0x802d35060}}, set_hints = {listener_list = {prev = 0x802d35070,
        next = 0x802d35070}}, set_decorations = {listener_list = {prev = 0x802d35080, next = 0x802d35080}}, set_override_redirect = {
      listener_list = {prev = 0x802d35090, next = 0x802d35090}}, set_geometry = {listener_list = {prev = 0x802d350a0,
        next = 0x802d350a0}}, ping_timeout = {listener_list = {prev = 0x802d350b0, next = 0x802d350b0}}}, data = 0x0}

[vaxerski]

patch.txt

try this patch

[jbeich]

I confirm, after applying the patch X11 apps no longer crash Hyprland. Tested at least glxgears, vkcube-xcb, glmark2, rpcs3, firefox.

[jbeich]

It also fixes crash with Wayland apps like vkcube-wayland which don't set app_id.

[vaxerski]

yeah. Fixed.

gnu c++ just throws an std::logic_error on attempting to init std::string with a nullptr thats why the try catch.