Details
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Bug
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Resolution: Duplicate
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Not Evaluated
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None
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Qt Creator 4.14.0
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None
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Ubuntu 16.04
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Linux/X11
Description
Qt Creator crashes with segmentation fault whilst loading ClangFormat plugin. I tried debugging with gdb and found that QtCreator loads system libLLVM-6.0.so.1 and crashes when calling
llvm::StringMapImpl::LookupBucketFor(llvm::StringRef) () from /usr/lib/x86_64-linux-gnu/libLLVM-6.0.so.1
When I rename /usr/lib/x86_64-linux-gnu/libLLVM-6.0.so.1, no crash is observed. I can not permanently rename this library, as this is a system installed library and Ubuntu 16.04 system applications have a dependency on it.
Backtrace during crash:
#0 0x00007fffc4dd8097 in llvm::StringMapImpl::LookupBucketFor(llvm::StringRef) () from /usr/lib/x86_64-linux-gnu/libLLVM-6.0.so.1
#1 0x00007fffc4dab4f1 in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-6.0.so.1
#2 0x00007fffc4dac193 in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-6.0.so.1
#3 0x00007fffc4dac403 in llvm::cl::Option::addArgument() () from /usr/lib/x86_64-linux-gnu/libLLVM-6.0.so.1
#4 0x00007fffbcbb2506 in ?? () from /opt/qtcreator-4.14.1/lib/qtcreator/plugins/libClangFormat.so
#5 0x00007ffff7de76fa in call_init (l=<optimised out>, argc=argc@entry=1, argv=argv@entry=0x7fffffffdc18, env=env@entry=0x7fffffffdc28) at dl-init.c:72
#6 0x00007ffff7de780b in call_init (env=0x7fffffffdc28, argv=0x7fffffffdc18, argc=1, l=<optimised out>) at dl-init.c:30
#7 _dl_init (main_map=main_map@entry=0xb97f40, argc=1, argv=0x7fffffffdc18, env=0x7fffffffdc28) at dl-init.c:120
#8 0x00007ffff7dec922 in dl_open_worker (a=a@entry=0x7fffffffd090) at dl-open.c:575
#9 0x00007ffff7de75a4 in _dl_catch_error (objname=objname@entry=0x7fffffffd080, errstring=errstring@entry=0x7fffffffd088, mallocedp=mallocedp@entry=0x7fffffffd07f,
operate=operate@entry=0x7ffff7dec510 <dl_open_worker>, args=args@entry=0x7fffffffd090) at dl-error.c:187
#10 0x00007ffff7debde9 in _dl_open (file=0xb7a148 "/opt/qtcreator-4.14.1/lib/qtcreator/plugins/libClangFormat.so", mode=-2147479551,
caller_dlopen=0x7ffff58185b8 <QLibraryPrivate::load_sys()+1960>, nsid=-2, argc=<optimised out>, argv=<optimised out>, env=0x7fffffffdc28) at dl-open.c:660
#11 0x00007ffff3748f09 in dlopen_doit (a=a@entry=0x7fffffffd2c0) at dlopen.c:66
#12 0x00007ffff7de75a4 in _dl_catch_error (objname=0x64e530, errstring=0x64e538, mallocedp=0x64e528, operate=0x7ffff3748eb0 <dlopen_doit>, args=0x7fffffffd2c0) at dl-error.c:187
#13 0x00007ffff3749571 in _dlerror_run (operate=operate@entry=0x7ffff3748eb0 <dlopen_doit>, args=args@entry=0x7fffffffd2c0) at dlerror.c:163
#14 0x00007ffff3748fa1 in __dlopen (file=<optimised out>, mode=<optimised out>) at dlopen.c:87
#15 0x00007ffff58185b8 in QLibraryPrivate::load_sys() () from /opt/qtcreator-4.14.1/bin/../lib/Qt/lib/libQt5Core.so.5
#16 0x00007ffff58116fa in QLibraryPrivate::load() () from /opt/qtcreator-4.14.1/bin/../lib/Qt/lib/libQt5Core.so.5
#17 0x00007ffff5811d4e in QLibraryPrivate::loadPlugin() () from /opt/qtcreator-4.14.1/bin/../lib/Qt/lib/libQt5Core.so.5
#18 0x00007ffff58057f5 in QPluginLoader::load() () from /opt/qtcreator-4.14.1/bin/../lib/Qt/lib/libQt5Core.so.5
#19 0x00007ffff7bc035c in ExtensionSystem::Internal::PluginSpecPrivate::loadLibrary() () from /opt/qtcreator-4.14.1/bin/../lib/qtcreator/libExtensionSystem.so.4
#20 0x00007ffff7bbb6bb in ExtensionSystem::Internal::PluginManagerPrivate::loadPlugin(ExtensionSystem::PluginSpec*, ExtensionSystem::PluginSpec::State) ()
from /opt/qtcreator-4.14.1/bin/../lib/qtcreator/libExtensionSystem.so.4
#21 0x00007ffff7bbbe13 in ExtensionSystem::Internal::PluginManagerPrivate::loadPlugins() () from /opt/qtcreator-4.14.1/bin/../lib/qtcreator/libExtensionSystem.so.4
#22 0x000000000040a15e in ?? ()
#23 0x00007ffff48d1840 in __libc_start_main (main=0x407af0, argc=1, argv=0x7fffffffdc18, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>,
stack_end=0x7fffffffdc08) at ../csu/libc-start.c:291
#24 0x000000000040aeb7 in ?? ()
After renaming /usr/lib/x86_64-linux-gnu/libLLVM-6.0.so.1 with breakpoint set for llvm::StringMapImpl::LookupBucketFor No crash observed in this case
#0 0x00007fffc3a5d940 in llvm::StringMapImpl::LookupBucketFor(llvm::StringRef)@plt () from /opt/qtcreator-4.14.1/lib/qtcreator/plugins/libClangFormat.so
#1 0x00007fffc3b11325 in ?? () from /opt/qtcreator-4.14.1/lib/qtcreator/plugins/libClangFormat.so
#2 0x00007fffc3a65fcc in ?? () from /opt/qtcreator-4.14.1/lib/qtcreator/plugins/libClangFormat.so
#3 0x00007ffff7de76fa in call_init (l=<optimised out>, argc=argc@entry=1, argv=argv@entry=0x7fffffffdc18, env=env@entry=0x7fffffffdc28) at dl-init.c:72
#4 0x00007ffff7de780b in call_init (env=0x7fffffffdc28, argv=0x7fffffffdc18, argc=1, l=<optimised out>) at dl-init.c:30
#5 _dl_init (main_map=main_map@entry=0xa19150, argc=1, argv=0x7fffffffdc18, env=0x7fffffffdc28) at dl-init.c:120
#6 0x00007ffff7dec922 in dl_open_worker (a=a@entry=0x7fffffffd090) at dl-open.c:575
#7 0x00007ffff7de75a4 in _dl_catch_error (objname=objname@entry=0x7fffffffd080, errstring=errstring@entry=0x7fffffffd088, mallocedp=mallocedp@entry=0x7fffffffd07f,
operate=operate@entry=0x7ffff7dec510 <dl_open_worker>, args=args@entry=0x7fffffffd090) at dl-error.c:187
#8 0x00007ffff7debde9 in _dl_open (file=0xa18188 "/opt/qtcreator-4.14.1/lib/qtcreator/plugins/libClangFormat.so", mode=-2147479551,
caller_dlopen=0x7ffff58185b8 <QLibraryPrivate::load_sys()+1960>, nsid=-2, argc=<optimised out>, argv=<optimised out>, env=0x7fffffffdc28) at dl-open.c:660
#9 0x00007ffff3748f09 in dlopen_doit (a=a@entry=0x7fffffffd2c0) at dlopen.c:66
#10 0x00007ffff7de75a4 in _dl_catch_error (objname=0x64e530, errstring=0x64e538, mallocedp=0x64e528, operate=0x7ffff3748eb0 <dlopen_doit>, args=0x7fffffffd2c0) at dl-error.c:187
#11 0x00007ffff3749571 in _dlerror_run (operate=operate@entry=0x7ffff3748eb0 <dlopen_doit>, args=args@entry=0x7fffffffd2c0) at dlerror.c:163
#12 0x00007ffff3748fa1 in __dlopen (file=<optimised out>, mode=<optimised out>) at dlopen.c:87
#13 0x00007ffff58185b8 in QLibraryPrivate::load_sys() () from /opt/qtcreator-4.14.1/bin/../lib/Qt/lib/libQt5Core.so.5
#14 0x00007ffff58116fa in QLibraryPrivate::load() () from /opt/qtcreator-4.14.1/bin/../lib/Qt/lib/libQt5Core.so.5
#15 0x00007ffff5811d4e in QLibraryPrivate::loadPlugin() () from /opt/qtcreator-4.14.1/bin/../lib/Qt/lib/libQt5Core.so.5
#16 0x00007ffff58057f5 in QPluginLoader::load() () from /opt/qtcreator-4.14.1/bin/../lib/Qt/lib/libQt5Core.so.5
#17 0x00007ffff7bc035c in ExtensionSystem::Internal::PluginSpecPrivate::loadLibrary() () from /opt/qtcreator-4.14.1/bin/../lib/qtcreator/libExtensionSystem.so.4
#18 0x00007ffff7bbb6bb in ExtensionSystem::Internal::PluginManagerPrivate::loadPlugin(ExtensionSystem::PluginSpec*, ExtensionSystem::PluginSpec::State) ()
from /opt/qtcreator-4.14.1/bin/../lib/qtcreator/libExtensionSystem.so.4
#19 0x00007ffff7bbbe13 in ExtensionSystem::Internal::PluginManagerPrivate::loadPlugins() () from /opt/qtcreator-4.14.1/bin/../lib/qtcreator/libExtensionSystem.so.4
#20 0x000000000040a15e in ?? ()
#21 0x00007ffff48d1840 in __libc_start_main (main=0x407af0, argc=1, argv=0x7fffffffdc18, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>,
stack_end=0x7fffffffdc08) at ../csu/libc-start.c:291
#22 0x000000000040aeb7 in ?? ()
It looks like Ubuntu 16.04 uses system LLVM library instead of one within ClangFormat plugin.
Attachments
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