Yes, IIRC it’s the Microsoft compiler that uses a different mangling. Kate Stone k8st...@apple.com <mailto:k8st...@apple.com> Xcode Low Level Tools
> On Mar 18, 2016, at 4:14 PM, Jim Ingham <jing...@apple.com> wrote: > > Note, g++ also uses the Itanium ABI for it’s C++ ABI, so as long as you are > on a platform whose primary compiler is gcc and that isn’t very very old, > either demangler will be equivalent except for bugs. The side effects of one > or the other are pretty much just that you get a different set of bugs. So > we let the platform owners choose the version they think best. > > Jim > > >> On Mar 18, 2016, at 3:54 PM, Kate Stone <katherine_st...@apple.com >> <mailto:katherine_st...@apple.com>> wrote: >> >> Not all platforms use the same C++ name mangling. Clang follows the Itanium >> ABI specification which is what both the built-in LLDB demanglers understand. >> >> Kate Stone k8st...@apple.com <mailto:k8st...@apple.com> >> Xcode Low Level Tools >> >> On Mar 18, 2016, at 3:50 PM, Jeffrey Tan via lldb-dev >> <lldb-dev@lists.llvm.org <mailto:lldb-dev@lists.llvm.org>> wrote: >> >>> Thanks Jim. This is very helpful. >>> We have double checked the libiberty we are building against which seems >>> already be updated two weeks ago so this bug might not been fixed yet. >>> Rebuilding LLDB_USE_BUILTIN_DEMANGLER fixed this stack overflow. >>> >>> Questions: >>> 1. Any reason LLDB_USE_BUILTIN_DEMANGLER is not used for other platforms? >>> 2. Any side-effect if I use LLDB_USE_BUILTIN_DEMANGLER for lldb on other >>> platform? >>> >>> On Thu, Mar 17, 2016 at 7:04 PM, Jim Ingham <jing...@apple.com >>> <mailto:jing...@apple.com>> wrote: >>> The code that has gotten itself into an infinite loop here is the libiberty >>> cp-demangle.c, which is part of the C++ runtime libraries for the system >>> you are on. So we can't do anything to fix bugs with that. You might make >>> sure there isn't a newer version of that than the one on your system, but >>> other than fixing the bugs in it yourself, there's not much we can do about >>> that one. >>> >>> However, if you build lldb with LLDB_USE_BUILTIN_DEMANGLER defined it will >>> do two things, it will trigger the FastDemangler that Kate wrote, and if >>> that succeeds, yay! Otherwise it will fall back to another demangler that >>> comes along with the C++ standard libraries from the llvm project. That >>> one, like the cp-demangle.c is very stack intensive, but it might not have >>> whatever bug you are triggering in the libiberty one. And if it does have >>> crashing bugs somebody in the clang world could fix them... >>> >>> Anyway, you might try that and see if you have any more luck. IIRC, >>> FreeBSD uses the llvm one in favor of the libiberty one. >>> >>> Jim >>> >>> >>> > On Mar 17, 2016, at 6:09 PM, Jeffrey Tan via lldb-dev >>> > <lldb-dev@lists.llvm.org <mailto:lldb-dev@lists.llvm.org>> wrote: >>> > >>> > This is crazy. I tried 10MB, not working, then 20MB still not working. I >>> > got around 80K frames stack overflow, this is clearly an infinitely loop >>> > in "d_print_comp": >>> > >>> > (gdb) bt >>> > #0 0x00007f35925511e1 in d_print_comp (dpi=0x7f3586747c00, options=17, >>> > dc=0x7f3586743bb0) at cp-demangle.c:4324 >>> > #1 0x00007f35925511e6 in d_print_comp (dpi=dpi@entry=0x7f3586747c00, >>> > options=options@entry=17, dc=0x7f3586743be0) at cp-demangle.c:4324 >>> > #2 0x00007f3592551010 in d_print_comp (dpi=0x7f3586747c00, options=17, >>> > dc=0x7f3586743ca0) at cp-demangle.c:4489 >>> > #3 0x00007f35925511e6 in d_print_comp (dpi=dpi@entry=0x7f3586747c00, >>> > options=options@entry=17, dc=0x7f3586743cd0) at cp-demangle.c:4324 >>> > #4 0x00007f3592551010 in d_print_comp (dpi=0x7f3586747c00, options=17, >>> > dc=0x7f3586744030) at cp-demangle.c:4489 >>> > #5 0x00007f3592554353 in d_print_mod (dpi=dpi@entry=0x7f3586747c00, >>> > options=options@entry=17, mod=<optimized out>) at cp-demangle.c:5539 >>> > #6 0x00007f3592554dbe in d_print_mod_list (dpi=dpi@entry=0x7f3586747c00, >>> > options=options@entry=17, mods=mods@entry=0x7f358534a7b0, >>> > suffix=suffix@entry=0) at cp-demangle.c:5468 >>> > #7 0x00007f35925556a1 in d_print_function_type >>> > (dpi=dpi@entry=0x7f3586747c00, options=options@entry=17, >>> > mods=0x7f358534a7b0, dc=0x7f3586744138) at cp-demangle.c:5609 >>> > #8 0x00007f359255010c in d_print_comp (dpi=dpi@entry=0x7f3586747c00, >>> > options=options@entry=17, dc=0x7f3586744138) at cp-demangle.c:4808 >>> > #9 0x00007f359254fa01 in d_print_comp (dpi=0x7f3586747c00, options=17, >>> > dc=0x7f3586744150) at cp-demangle.c:4434 >>> > ..... >>> > >>> > #79590 0x00007f35925526b3 in d_print_comp (dpi=dpi@entry=0x7f3586747c00, >>> > options=options@entry=17, dc=0x7f3586744108) at cp-demangle.c:4529 >>> > #79591 0x00007f359255023b in d_print_comp (dpi=dpi@entry=0x7f3586747c00, >>> > options=options@entry=17, dc=0x7f3586744408) at cp-demangle.c:4742 >>> > #79592 0x00007f3592553448 in d_print_comp (dpi=dpi@entry=0x7f3586747c00, >>> > options=options@entry=17, dc=0x7f3586744450) at cp-demangle.c:4793 >>> > #79593 0x00007f359254fa01 in d_print_comp (dpi=dpi@entry=0x7f3586747c00, >>> > options=options@entry=17, dc=dc@entry=0x7f3586744468) at >>> > cp-demangle.c:4434 >>> > #79594 0x00007f3592555f53 in d_demangle_callback (options=17, >>> > opaque=0x7f3586742cc0, callback=0x7f359254b820 >>> > <d_growable_string_callback_adapter>, dc=0x7f3586744468) at >>> > cp-demangle.c:4063 >>> > #79595 0x00007f3592555f53 in d_demangle_callback (mangled=<optimized out>, >>> > mangled@entry=0x0, callback=callback@entry=0x7f359254b820 >>> > <d_growable_string_callback_adapter>, opaque=opaque@entry=0x7f3586747db0, >>> > options=17) at cp-demangle.c:5865 >>> > #79596 0x00007f359255609f in __cxa_demangle (options=17, palc=<synthetic >>> > pointer>, mangled=0x0) at cp-demangle.c:5886 >>> > >>> > #79597 0x00007f359255609f in __cxa_demangle >>> > (mangled_name=mangled_name@entry=0x7f3570e3d460 >>> > "_ZNSt9_Any_data9_M_accessIPPZN5folly6fibers12FiberManager16runInMainContextIZN8facebook8memcache15CacheClientImplINS6_17CControllerCommonINS1_7dynamicEEEE11multiOpSyncINS6_11McOperationILi11EEESt6vect"..., >>> > output_buffer=output_buffer@entry=0x0, length=length@entry=0x0, >>> > status=status@entry=0x0) at cp-demangle.c:5950 >>> > #79598 0x00007f359417cc57 in >>> > lldb_private::Mangled::GetDemangledName(lldb::LanguageType) const >>> > (this=this@entry=0x7f3584288310, >>> > language=language@entry=lldb::eLanguageTypeC_plus_plus) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/Mangled.cpp:316 >>> > >>> > #79599 0x00007f359427adca in lldb_private::Symtab::InitNameIndexes() >>> > (this=0x7f35701a8ff0) at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Symbol/Symtab.cpp:334 >>> > #79600 0x00007f359427c0b8 in >>> > lldb_private::Symtab::FindAllSymbolsWithNameAndType(lldb_private::ConstString >>> > const&, lldb::SymbolType, std::vector<unsigned int, >>> > std::allocator<unsigned int> >&) (this=this@entry=0x7f35701a8ff0, >>> > name=..., symbol_type=symbol_type@entry=lldb::eSymbolTypeAny, >>> > symbol_indexes=...) at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Symbol/Symtab.cpp:819 >>> > >>> > #79601 0x00007f359417fec2 in >>> > lldb_private::Module::FindSymbolsWithNameAndType(lldb_private::ConstString >>> > const&, lldb::SymbolType, lldb_private::SymbolContextList&) >>> > (this=0x7f35700605a0, name=..., >>> > symbol_type=symbol_type@entry=lldb::eSymbolTypeAny, sc_list=...) at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/Module.cpp:1432 >>> > #79602 0x00007f359418681d in >>> > lldb_private::ModuleList::FindSymbolsWithNameAndType(lldb_private::ConstString >>> > const&, lldb::SymbolType, lldb_private::SymbolContextList&, bool) const >>> > (this=this@entry=0x7f35867484b0, name=..., >>> > symbol_type=symbol_type@entry=lldb::eSymbolTypeAny, sc_list=..., >>> > append=append@entry=false) at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/ModuleList.cpp:573 >>> > #79603 0x00007f3594533626 in >>> > JITLoaderGDB::GetSymbolAddress(lldb_private::ModuleList&, >>> > lldb_private::ConstString const&, lldb::SymbolType) const >>> > (this=this@entry=0x7f3570042990, module_list=..., name=..., >>> > symbol_type=symbol_type@entry=lldb::eSymbolTypeAny) at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp:500 >>> > >>> > >>> > >>> > #79604 0x00007f35945354cb in >>> > JITLoaderGDB::SetJITBreakpoint(lldb_private::ModuleList&) >>> > (this=0x7f3570042990, module_list=...) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp:177 >>> > #79605 0x00007f359432b910 in >>> > lldb_private::JITLoaderList::ModulesDidLoad(lldb_private::ModuleList&) >>> > (this=<optimized out>, module_list=...) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/JITLoaderList.cpp:76 >>> > #79606 0x00007f35942c80f8 in >>> > lldb_private::Process::ModulesDidLoad(lldb_private::ModuleList&) >>> > (this=this@entry=0x8919b0, module_list=...) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Process.cpp:6370 >>> > #79607 0x00007f3594412091 in >>> > lldb_private::process_gdb_remote::ProcessGDBRemote::ModulesDidLoad(lldb_private::ModuleList&) >>> > (this=0x8919b0, module_list=...) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp:4927 >>> > #79608 0x00007f35942f2131 in >>> > lldb_private::Target::ModulesDidLoad(lldb_private::ModuleList&) >>> > (this=0x88d0d0, module_list=...) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Target.cpp:1400 >>> > #79609 0x00007f35942fbb58 in >>> > lldb_private::Target::ModuleAdded(lldb_private::ModuleList const&, >>> > std::shared_ptr<lldb_private::Module> const&) (this=0x88d0d0, >>> > module_list=..., module_sp=...) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Target.cpp:1364 >>> > #79610 0x00007f3594187f28 in >>> > lldb_private::ModuleList::AppendImpl(std::shared_ptr<lldb_private::Module> >>> > const&, bool) (this=0x88d3d0, module_sp=..., >>> > use_notifier=use_notifier@entry=true) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/ModuleList.cpp:110 >>> > #79611 0x00007f3594187f6a in >>> > lldb_private::ModuleList::Append(std::shared_ptr<lldb_private::Module> >>> > const&) (this=<optimized out>, module_sp=...) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/ModuleList.cpp:117 >>> > #79612 0x00007f35942f0def in >>> > lldb_private::Target::GetSharedModule(lldb_private::ModuleSpec const&, >>> > lldb_private::Error*) (this=this@entry=0x88d0d0, module_spec=..., >>> > error_ptr=error_ptr@entry=0x0) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Target.cpp:1924 >>> > #79613 0x00007f359463fb48 in >>> > lldb_private::DynamicLoader::LoadModuleAtAddress(lldb_private::FileSpec >>> > const&, unsigned long, unsigned long, bool) (this=<optimized out>, >>> > file=..., link_map_addr=139710961516544, base_addr=139710941827072, >>> > base_addr_is_offset=<optimized out>) at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/DynamicLoader.cpp:192 >>> > #79614 0x00007f35943a664a in >>> > DynamicLoaderPOSIXDYLD::LoadAllCurrentModules() (this=0x7f3570038570) >>> > ---Type <return> to continue, or q <return> to quit--- >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.cpp:521 >>> > #79615 0x00007f35943a88f0 in DynamicLoaderPOSIXDYLD::DidAttach() >>> > (this=0x7f3570038570) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.cpp:181 >>> > #79616 0x00007f35942c546c in lldb_private::Process::CompleteAttach() >>> > (this=0x8919b0) at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Process.cpp:3443 >>> > #79617 0x00007f35942c6236 in >>> > lldb_private::Process::AttachCompletionHandler::PerformAction(std::shared_ptr<lldb_private::Event>&) >>> > (this=0x8b5f60, event_sp=...) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Process.cpp:3194 >>> > #79618 0x00007f35942ce98c in >>> > lldb_private::Process::HandlePrivateEvent(std::shared_ptr<lldb_private::Event>&) >>> > (this=this@entry=0x8919b0, event_sp=...) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Process.cpp:4184 >>> > #79619 0x00007f35942cf9bd in >>> > lldb_private::Process::RunPrivateStateThread(bool) (this=0x8919b0, >>> > is_secondary_thread=<optimized out>) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Process.cpp:4429 >>> > #79620 0x00007f3594127421 in >>> > lldb_private::HostNativeThreadBase::ThreadCreateTrampoline(void*) >>> > (arg=0x8b5f40) >>> > at >>> > /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Host/common/HostNativeThreadBase.cpp:81 >>> > #79621 0x00007f3592a43aa1 in start_thread () at /lib64/libpthread.so.0 >>> > #79622 0x00007f3591da593d in clone () at /lib64/libc.so.6 >>> > >>> > On Thu, Mar 17, 2016 at 2:41 PM, Kate Stone <katherine_st...@apple.com >>> > <mailto:katherine_st...@apple.com>> wrote: >>> > The cxa_demangle implementation definitely consumes stack aggressively, >>> > especially when compiled -O0. I’d definitely recommend an 8MB+ stack for >>> > any thread that may wind up demangling arbitrary C++ symbols. The new >>> > “fast demangler” is much more conservative with stack space but doesn’t >>> > yet support the full name mangling specification, so complex symbols >>> > often rely on falling back to cxa_demangle. >>> > >>> > Kate Stone k8st...@apple.com <mailto:k8st...@apple.com> >>> > Xcode Low Level Tools >>> > >>> >> On Mar 17, 2016, at 2:19 PM, Greg Clayton via lldb-dev >>> >> <lldb-dev@lists.llvm.org <mailto:lldb-dev@lists.llvm.org>> wrote: >>> >> >>> >> Make stacks bigger when making threads on linux? >>> >> >>> >>> On Mar 17, 2016, at 1:39 PM, Jeffrey Tan via lldb-dev >>> >>> <lldb-dev@lists.llvm.org <mailto:lldb-dev@lists.llvm.org>> wrote: >>> >>> >>> >>> Seems like the crashes happens because of abi::__cxa_demangle() for >>> >>> mangled symbol name " >>> >>> _ZNSt9_Any_data9_M_accessIPPZN5folly6fibers12FiberManager16runInMainContextIZN8facebook8memcache15CacheClientImplINS6_17CControllerCommonINS1_7dynamicEEEE11multiOpSyncINS6_11McOperationILi11EEESt6vect". >>> >>> >>> >>> This is blocking us from releasing our C++ debugging support. Anyone >>> >>> know of a quick workaround I can fix it locally? Thanks! >>> >>> >>> >>> On Thu, Mar 17, 2016 at 12:25 PM, via lldb-dev <lldb-dev@lists.llvm.org >>> >>> <mailto:lldb-dev@lists.llvm.org>> wrote: >>> >>> Bug ID 26978 >>> >>> Summary LLDB stack overflow while dealing with symbols for a >>> >>> process on Linux >>> >>> Product lldb >>> >>> Version 3.8 >>> >>> Hardware PC >>> >>> OS Linux >>> >>> Status NEW >>> >>> Severity release blocker >>> >>> Priority P >>> >>> Component All Bugs >>> >>> Assignee lldb-dev@lists.llvm.org <mailto:lldb-dev@lists.llvm.org> >>> >>> Reporter jeffrey.fu...@gmail.com <mailto:jeffrey.fu...@gmail.com> >>> >>> CC llvm-b...@lists.llvm.org <mailto:llvm-b...@lists.llvm.org> >>> >>> Classification Unclassified >>> >>> >>> >>> While using lldb to attach a process in our company on Linux, lldb >>> >>> segment >>> >>> fault with a huge stack(more than 30K stack frames). I assume it crashes >>> >>> because of stack overflow. Let me know what additional information you >>> >>> needed(I >>> >>> have coredump): >>> >>> >>> >>> #0 0x00007f28ce530819 in d_print_comp (dpi=0x7f28c2728c00, options=17, >>> >>> dc=0x7f28c2724b80) at cp-demangle.c:4286 >>> >>> #1 0x00007f28ce5321e6 in d_print_comp (dpi=0x7f28c2728c00, options=17, >>> >>> dc=0x7f28c2724bb0) at cp-demangle.c:4324 >>> >>> #2 0x00007f28ce5321e6 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2724c10) at cp-demangle.c:4324 >>> >>> #3 0x00007f28ce532010 in d_print_comp (dpi=0x7f28c2728c00, options=17, >>> >>> dc=0x7f28c2724c70) at cp-demangle.c:4489 >>> >>> #4 0x00007f28ce5319c0 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2724c88) at cp-demangle.c:4923 >>> >>> #5 0x00007f28ce532056 in d_print_comp (dpi=0x7f28c2728c00, options=17, >>> >>> dc=0x7f28c2724ca0) at cp-demangle.c:4493 >>> >>> #6 0x00007f28ce5321e6 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2724cd0) at cp-demangle.c:4324 >>> >>> #7 0x00007f28ce532010 in d_print_comp (dpi=0x7f28c2728c00, options=17, >>> >>> dc=0x7f28c2725030) at cp-demangle.c:4489 >>> >>> #8 0x00007f28ce535353 in d_print_mod (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, mod=<optimized out>) at cp-demangle.c:5539 >>> >>> #9 0x00007f28ce535dbe in d_print_mod_list >>> >>> (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, mods=mods@entry=0x7f28c1f2ba30, >>> >>> suffix=suffix@entry=0) at cp-demangle.c:5468 >>> >>> #10 0x00007f28ce5366a1 in d_print_function_type >>> >>> (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, mods=0x7f28c1f2ba30, dc=0x7f28c2725138) at >>> >>> cp-demangle.c:5609 >>> >>> #11 0x00007f28ce53110c in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2725138) at cp-demangle.c:4808 >>> >>> #12 0x00007f28ce530a01 in d_print_comp (dpi=0x7f28c2728c00, options=17, >>> >>> dc=0x7f28c2725150) at cp-demangle.c:4434 >>> >>> #13 0x00007f28ce5321e6 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c27251b0) at cp-demangle.c:4324 >>> >>> #14 0x00007f28ce5336b3 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2725108) at cp-demangle.c:4529 >>> >>> #15 0x00007f28ce534448 in d_print_comp (dpi=0x7f28c2728c00, >>> >>> options=<optimized >>> >>> out>, dc=0x7f28c2725270) at cp-demangle.c:4793 >>> >>> #16 0x00007f28ce5319c0 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2725288) at cp-demangle.c:4923 >>> >>> #17 0x00007f28ce532056 in d_print_comp (dpi=0x7f28c2728c00, options=17, >>> >>> dc=0x7f28c27252a0) at cp-demangle.c:4493 >>> >>> #18 0x00007f28ce5321e6 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c27252d0) at cp-demangle.c:4324 >>> >>> #19 0x00007f28ce534448 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2725318) at cp-demangle.c:4793 >>> >>> #20 0x00007f28ce530a01 in d_print_comp (dpi=0x7f28c2728c00, options=17, >>> >>> dc=0x7f28c2725330) at cp-demangle.c:4434 >>> >>> #21 0x00007f28ce5321e6 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2725390) at cp-demangle.c:4324 >>> >>> #22 0x00007f28ce53123b in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c27253a8) at cp-demangle.c:4742 >>> >>> #23 0x00007f28ce53123b in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c27253c0) at cp-demangle.c:4742 >>> >>> #24 0x00007f28ce5336b3 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2725108) at cp-demangle.c:4529 >>> >>> #25 0x00007f28ce53123b in d_print_comp (dpi=0x7f28c2728c00, options=17, >>> >>> dc=0x7f28c27252e8) at cp-demangle.c:4742 >>> >>> #26 0x00007f28ce5319c0 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2725300) at cp-demangle.c:4923 >>> >>> #27 0x00007f28ce5366e1 in d_print_function_type >>> >>> (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, mods=0x7f28c1f2cc70, dc=0x7f28c2725318) at >>> >>> cp-demangle.c:5617 >>> >>> #28 0x00007f28ce53110c in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2725318) at cp-demangle.c:4808 >>> >>> #29 0x00007f28ce530a01 in d_print_comp (dpi=0x7f28c2728c00, options=17, >>> >>> dc=0x7f28c2725330) at cp-demangle.c:4434 >>> >>> .... >>> >>> >>> >>> #31767 0x00007f28ce5336b3 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2725108) at cp-demangle.c:4529 >>> >>> #31768 0x00007f28ce53123b in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2725408) at cp-demangle.c:4742 >>> >>> #31769 0x00007f28ce534448 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=0x7f28c2725450) at cp-demangle.c:4793 >>> >>> #31770 0x00007f28ce530a01 in d_print_comp (dpi=dpi@entry=0x7f28c2728c00, >>> >>> options=options@entry=17, dc=dc@entry=0x7f28c2725468) at >>> >>> cp-demangle.c:4434 >>> >>> #31771 0x00007f28ce536f53 in d_demangle_callback (options=17, >>> >>> opaque=0x7f28c2723cc0, callback=0x7f28ce52c820 >>> >>> <d_growable_string_callback_adapter>, dc=0x7f28c2725468) at >>> >>> cp-demangle.c:4063 >>> >>> #31772 0x00007f28ce536f53 in d_demangle_callback (mangled=<optimized >>> >>> out>, >>> >>> mangled@entry=0x0, callback=callback@entry=0x7f28ce52c820 >>> >>> <d_growable_string_callback_adapter>, >>> >>> opaque=opaque@entry=0x7f28c2728db0, >>> >>> options=17) at cp-demangle.c:5865 >>> >>> #31773 0x00007f28ce53709f in __cxa_demangle (options=17, palc=<synthetic >>> >>> pointer>, mangled=0x0) at cp-demangle.c:5886 >>> >>> >>> >>> #31774 0x00007f28ce53709f in __cxa_demangle >>> >>> (mangled_name=mangled_name@entry=0x7f28ace3d460 >>> >>> "_ZNSt9_Any_data9_M_accessIPPZN5folly6fibers12FiberManager16runInMainContextIZN8facebook8memcache15CacheClientImplINS6_17CControllerCommonINS1_7dynamicEEEE11multiOpSyncINS6_11McOperationILi11EEESt6vect"..., >>> >>> output_buffer=output_buffer@entry=0x0, length=length@entry=0x0, >>> >>> status=status@entry=0x0) at cp-demangle.c:5950 >>> >>> #31775 0x00007f28d015dc57 in >>> >>> lldb_private::Mangled::GetDemangledName(lldb::LanguageType) const >>> >>> (this=this@entry=0x7f28c0d48310, >>> >>> language=language@entry=lldb::eLanguageTypeC_plus_plus) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/Mangled.cpp:316 >>> >>> >>> >>> #31776 0x00007f28d025bdca in lldb_private::Symtab::InitNameIndexes() >>> >>> (this=0x7f28ac1a8ff0) at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Symbol/Symtab.cpp:334 >>> >>> #31777 0x00007f28d025d0b8 in >>> >>> lldb_private::Symtab::FindAllSymbolsWithNameAndType(lldb_private::ConstString >>> >>> const&, lldb::SymbolType, std::vector<unsigned int, >>> >>> std::allocator<unsigned >>> >>> int> >&) (this=this@entry=0x7f28ac1a8ff0, name=..., >>> >>> symbol_type=symbol_type@entry=lldb::eSymbolTypeAny, symbol_indexes=...) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Symbol/Symtab.cpp:819 >>> >>> >>> >>> #31778 0x00007f28d0160ec2 in >>> >>> lldb_private::Module::FindSymbolsWithNameAndType(lldb_private::ConstString >>> >>> const&, lldb::SymbolType, lldb_private::SymbolContextList&) >>> >>> (this=0x7f28ac0605a0, name=..., >>> >>> symbol_type=symbol_type@entry=lldb::eSymbolTypeAny, sc_list=...) at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/Module.cpp:1432 >>> >>> #31779 0x00007f28d016781d in >>> >>> lldb_private::ModuleList::FindSymbolsWithNameAndType(lldb_private::ConstString >>> >>> const&, lldb::SymbolType, lldb_private::SymbolContextList&, bool) const >>> >>> (this=this@entry=0x7f28c27294b0, name=..., >>> >>> symbol_type=symbol_type@entry=lldb::eSymbolTypeAny, sc_list=..., >>> >>> append=append@entry=false) at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/ModuleList.cpp:573 >>> >>> #31780 0x00007f28d0514626 in >>> >>> JITLoaderGDB::GetSymbolAddress(lldb_private::ModuleList&, >>> >>> lldb_private::ConstString const&, lldb::SymbolType) const >>> >>> (this=this@entry=0x7f28ac042990, module_list=..., name=..., >>> >>> symbol_type=symbol_type@entry=lldb::eSymbolTypeAny) at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp:500 >>> >>> >>> >>> #31781 0x00007f28d05164cb in >>> >>> JITLoaderGDB::SetJITBreakpoint(lldb_private::ModuleList&) >>> >>> (this=0x7f28ac042990, >>> >>> module_list=...) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp:177 >>> >>> >>> >>> #31782 0x00007f28d030c910 in >>> >>> lldb_private::JITLoaderList::ModulesDidLoad(lldb_private::ModuleList&) >>> >>> (this=<optimized out>, module_list=...) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/JITLoaderList.cpp:76 >>> >>> #31783 0x00007f28d02a90f8 in >>> >>> lldb_private::Process::ModulesDidLoad(lldb_private::ModuleList&) >>> >>> (this=this@entry=0x894160, module_list=...) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Process.cpp:6370 >>> >>> ---Type <return> to continue, or q <return> to quit--- >>> >>> #31784 0x00007f28d03f3091 in >>> >>> lldb_private::process_gdb_remote::ProcessGDBRemote::ModulesDidLoad(lldb_private::ModuleList&) >>> >>> (this=0x894160, module_list=...) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp:4927 >>> >>> #31785 0x00007f28d02d3131 in >>> >>> lldb_private::Target::ModulesDidLoad(lldb_private::ModuleList&) >>> >>> (this=0x88f8b0, >>> >>> module_list=...) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Target.cpp:1400 >>> >>> #31786 0x00007f28d02dcb58 in >>> >>> lldb_private::Target::ModuleAdded(lldb_private::ModuleList const&, >>> >>> std::shared_ptr<lldb_private::Module> const&) (this=0x88f8b0, >>> >>> module_list=..., >>> >>> module_sp=...) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Target.cpp:1364 >>> >>> #31787 0x00007f28d0168f28 in >>> >>> lldb_private::ModuleList::AppendImpl(std::shared_ptr<lldb_private::Module> >>> >>> const&, bool) (this=0x88fbb0, module_sp=..., >>> >>> use_notifier=use_notifier@entry=true) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/ModuleList.cpp:110 >>> >>> #31788 0x00007f28d0168f6a in >>> >>> lldb_private::ModuleList::Append(std::shared_ptr<lldb_private::Module> >>> >>> const&) >>> >>> (this=<optimized out>, module_sp=...) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/ModuleList.cpp:117 >>> >>> #31789 0x00007f28d02d1def in >>> >>> lldb_private::Target::GetSharedModule(lldb_private::ModuleSpec const&, >>> >>> lldb_private::Error*) (this=this@entry=0x88f8b0, module_spec=..., >>> >>> error_ptr=error_ptr@entry=0x0) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Target.cpp:1924 >>> >>> #31790 0x00007f28d0620b48 in >>> >>> lldb_private::DynamicLoader::LoadModuleAtAddress(lldb_private::FileSpec >>> >>> const&, >>> >>> unsigned long, unsigned long, bool) (this=<optimized out>, file=..., >>> >>> link_map_addr=139710961516544, base_addr=139710941827072, >>> >>> base_addr_is_offset=<optimized out>) at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Core/DynamicLoader.cpp:192 >>> >>> #31791 0x00007f28d038764a in >>> >>> DynamicLoaderPOSIXDYLD::LoadAllCurrentModules() >>> >>> (this=0x7f28ac038570) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.cpp:521 >>> >>> #31792 0x00007f28d03898f0 in DynamicLoaderPOSIXDYLD::DidAttach() >>> >>> (this=0x7f28ac038570) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.cpp:181 >>> >>> #31793 0x00007f28d02a646c in lldb_private::Process::CompleteAttach() >>> >>> (this=0x894160) at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Process.cpp:3443 >>> >>> #31794 0x00007f28d02a7236 in >>> >>> lldb_private::Process::AttachCompletionHandler::PerformAction(std::shared_ptr<lldb_private::Event>&) >>> >>> (this=0x8b8920, event_sp=...) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Process.cpp:3194 >>> >>> #31795 0x00007f28d02af98c in >>> >>> lldb_private::Process::HandlePrivateEvent(std::shared_ptr<lldb_private::Event>&) >>> >>> (this=this@entry=0x894160, event_sp=...) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Process.cpp:4184 >>> >>> #31796 0x00007f28d02b09bd in >>> >>> lldb_private::Process::RunPrivateStateThread(bool) >>> >>> (this=0x894160, is_secondary_thread=<optimized out>) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Target/Process.cpp:4429 >>> >>> #31797 0x00007f28d0108421 in >>> >>> lldb_private::HostNativeThreadBase::ThreadCreateTrampoline(void*) >>> >>> (arg=0x8b8900) >>> >>> at >>> >>> /home/engshare/third-party2/lldb/3.8.0.rc3/src/llvm/tools/lldb/source/Host/common/HostNativeThreadBase.cpp:81 >>> >>> #31798 0x00007f28cea24aa1 in start_thread () at /lib64/libpthread.so.0 >>> >>> #31799 0x00007f28cdd8693d in clone () at /lib64/libc.so.6 >>> >>> >>> >>> >>> >>> You are receiving this mail because: >>> >>> • You are the assignee for the bug. >>> >>> >>> >>> _______________________________________________ >>> >>> lldb-dev mailing list >>> >>> lldb-dev@lists.llvm.org <mailto:lldb-dev@lists.llvm.org> >>> >>> http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev >>> >>> <http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> >>> lldb-dev mailing list >>> >>> lldb-dev@lists.llvm.org <mailto:lldb-dev@lists.llvm.org> >>> >>> http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev >>> >>> <http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev> >>> >> >>> >> 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