This is copied from a user who sent me his error message, but I saw the same (the errors can be fixed by linking in -lpthread manually, so it's probably just a make system issue):
llvm[6]: Linking Release+Asserts Shared Library liblldb.so /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbExpression.a(ClangExpressionParser.o): In function `lldb_private::ClangExpressionParser::Parse(lldb_private::Stream&)': ClangExpressionParser.cpp:(.text._ZN12lldb_private21ClangExpressionParser5ParseERNS_6StreamE+0x397): warning: the use of `mktemp' is dangerous, better use `mkstemp' or `mkdtemp' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(NativeProcessLinux.o): In function `lldb_private::NativeProcessLinux::OperationArgs::OperationArgs(lldb_private::NativeProcessLinux*)': NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux13OperationArgsC2EPS0_+0x1a): undefined reference to `sem_init' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(NativeProcessLinux.o): In function `lldb_private::NativeProcessLinux::OperationArgs::~OperationArgs()': NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux13OperationArgsD2Ev+0x9): undefined reference to `sem_destroy' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(NativeProcessLinux.o): In function `lldb_private::NativeProcessLinux::ServeOperation(lldb_private::NativeProcessLinux::OperationArgs*)': NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux14ServeOperationEPNS0_13OperationArgsE+0xd): undefined reference to `sem_post' NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux14ServeOperationEPNS0_13OperationArgsE+0x24): undefined reference to `sem_wait' NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux14ServeOperationEPNS0_13OperationArgsE+0x6c): undefined reference to `sem_post' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(NativeProcessLinux.o): In function `lldb_private::NativeProcessLinux::DoOperation(void*)': NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux11DoOperationEPv+0x36): undefined reference to `sem_post' NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux11DoOperationEPv+0x4e): undefined reference to `sem_wait' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(NativeProcessLinux.o): In function `lldb_private::NativeProcessLinux::StopMonitor()': NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux11StopMonitorEv+0x19): undefined reference to `sem_destroy' NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux11StopMonitorEv+0x26): undefined reference to `sem_destroy' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(NativeProcessLinux.o): In function `lldb_private::NativeProcessLinux::LaunchInferior(lldb_private::Module*, char const**, char const**, char const*, char const*, char const*, char const*, lldb_private::ProcessLaunchInfo const&, lldb_private::Error&)': NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux14LaunchInferiorEPNS_6ModuleEPPKcS5_S4_S4_S4_S4_RKNS_17ProcessLaunchInfoERNS_5ErrorE+0xd1): undefined reference to `sem_init' NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux14LaunchInferiorEPNS_6ModuleEPPKcS5_S4_S4_S4_S4_RKNS_17ProcessLaunchInfoERNS_5ErrorE+0xe1): undefined reference to `sem_init' NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux14LaunchInferiorEPNS_6ModuleEPPKcS5_S4_S4_S4_S4_RKNS_17ProcessLaunchInfoERNS_5ErrorE+0x116): undefined reference to `sem_wait' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(NativeProcessLinux.o): In function `lldb_private::NativeProcessLinux::AttachToInferior(unsigned long, lldb_private::Error&)': NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux16AttachToInferiorEmRNS_5ErrorE+0x1bb): undefined reference to `sem_init' NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux16AttachToInferiorEmRNS_5ErrorE+0x1cc): undefined reference to `sem_init' NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux16AttachToInferiorEmRNS_5ErrorE+0x222): undefined reference to `sem_wait' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(NativeProcessLinux.o): In function `lldb_private::NativeProcessLinux::LaunchOpThread(void*)': NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux14LaunchOpThreadEPv+0x25): undefined reference to `sem_post' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(NativeProcessLinux.o): In function `lldb_private::NativeProcessLinux::AttachOpThread(void*)': NativeProcessLinux.cpp:(.text._ZN12lldb_private18NativeProcessLinux14AttachOpThreadEPv+0x25): undefined reference to `sem_post' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(ProcessMonitor.o): In function `ProcessMonitor::OperationArgs::OperationArgs(ProcessMonitor*)': ProcessMonitor.cpp:(.text._ZN14ProcessMonitor13OperationArgsC2EPS_+0x1a): undefined reference to `sem_init' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(ProcessMonitor.o): In function `ProcessMonitor::OperationArgs::~OperationArgs()': ProcessMonitor.cpp:(.text._ZN14ProcessMonitor13OperationArgsD2Ev+0x9): undefined reference to `sem_destroy' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(ProcessMonitor.o): In function `ProcessMonitor::ServeOperation(ProcessMonitor::OperationArgs*)': ProcessMonitor.cpp:(.text._ZN14ProcessMonitor14ServeOperationEPNS_13OperationArgsE+0xd): undefined reference to `sem_post' ProcessMonitor.cpp:(.text._ZN14ProcessMonitor14ServeOperationEPNS_13OperationArgsE+0x24): undefined reference to `sem_wait' ProcessMonitor.cpp:(.text._ZN14ProcessMonitor14ServeOperationEPNS_13OperationArgsE+0x69): undefined reference to `sem_post' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(ProcessMonitor.o): In function `ProcessMonitor::DoOperation(Operation*)': ProcessMonitor.cpp:(.text._ZN14ProcessMonitor11DoOperationEP9Operation+0x2a): undefined reference to `sem_post' ProcessMonitor.cpp:(.text._ZN14ProcessMonitor11DoOperationEP9Operation+0x3e): undefined reference to `sem_wait' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(ProcessMonitor.o): In function `ProcessMonitor::StopMonitor()': ProcessMonitor.cpp:(.text._ZN14ProcessMonitor11StopMonitorEv+0x16): undefined reference to `sem_destroy' ProcessMonitor.cpp:(.text._ZN14ProcessMonitor11StopMonitorEv+0x20): undefined reference to `sem_destroy' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(ProcessMonitor.o): In function `ProcessMonitor::ProcessMonitor(ProcessPOSIX*, lldb_private::Module*, char const**, char const**, char const*, char const*, char const*, char const*, lldb_private::ProcessLaunchInfo const&, lldb_private::Error&)': ProcessMonitor.cpp:(.text._ZN14ProcessMonitorC2EP12ProcessPOSIXPN12lldb_private6ModuleEPPKcS7_S6_S6_S6_S6_RKNS2_17ProcessLaunchInfoERNS2_5ErrorE+0xd3): undefined reference to `sem_init' ProcessMonitor.cpp:(.text._ZN14ProcessMonitorC2EP12ProcessPOSIXPN12lldb_private6ModuleEPPKcS7_S6_S6_S6_S6_RKNS2_17ProcessLaunchInfoERNS2_5ErrorE+0xe0): undefined reference to `sem_init' ProcessMonitor.cpp:(.text._ZN14ProcessMonitorC2EP12ProcessPOSIXPN12lldb_private6ModuleEPPKcS7_S6_S6_S6_S6_RKNS2_17ProcessLaunchInfoERNS2_5ErrorE+0x116): undefined reference to `sem_wait' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(ProcessMonitor.o): In function `ProcessMonitor::ProcessMonitor(ProcessPOSIX*, unsigned long, lldb_private::Error&)': ProcessMonitor.cpp:(.text._ZN14ProcessMonitorC2EP12ProcessPOSIXmRN12lldb_private5ErrorE+0x50): undefined reference to `sem_init' ProcessMonitor.cpp:(.text._ZN14ProcessMonitorC2EP12ProcessPOSIXmRN12lldb_private5ErrorE+0x5d): undefined reference to `sem_init' ProcessMonitor.cpp:(.text._ZN14ProcessMonitorC2EP12ProcessPOSIXmRN12lldb_private5ErrorE+0xae): undefined reference to `sem_wait' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(ProcessMonitor.o): In function `ProcessMonitor::LaunchOpThread(void*)': ProcessMonitor.cpp:(.text._ZN14ProcessMonitor14LaunchOpThreadEPv+0x25): undefined reference to `sem_post' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbPluginProcessLinux.a(ProcessMonitor.o): In function `ProcessMonitor::AttachOpThread(void*)': ProcessMonitor.cpp:(.text._ZN14ProcessMonitor14AttachOpThreadEPv+0x25): undefined reference to `sem_post' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(Host.o): In function `MonitorChildProcessThreadFunction(void*)': Host.cpp:(.text._ZL33MonitorChildProcessThreadFunctionPv+0xf3): undefined reference to `pthread_testcancel' Host.cpp:(.text._ZL33MonitorChildProcessThreadFunctionPv+0x10b): undefined reference to `pthread_testcancel' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(Host.o): In function `lldb_private::Host::ThreadCreate(char const*, void* (*)(void*), void*, lldb_private::Error*)': Host.cpp:(.text._ZN12lldb_private4Host12ThreadCreateEPKcPFPvS3_ES3_PNS_5ErrorE+0x63): undefined reference to `pthread_create' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(Host.o): In function `lldb_private::Host::ThreadCancel(unsigned long, lldb_private::Error*)': Host.cpp:(.text._ZN12lldb_private4Host12ThreadCancelEmPNS_5ErrorE+0xa): undefined reference to `pthread_cancel' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(Host.o): In function `lldb_private::Host::ThreadDetach(unsigned long, lldb_private::Error*)': Host.cpp:(.text._ZN12lldb_private4Host12ThreadDetachEmPNS_5ErrorE+0xa): undefined reference to `pthread_detach' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(Host.o): In function `lldb_private::Host::ThreadJoin(unsigned long, void**, lldb_private::Error*)': Host.cpp:(.text._ZN12lldb_private4Host10ThreadJoinEmPPvPNS_5ErrorE+0xa): undefined reference to `pthread_join' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(Host.o): In function `lldb_private::Host::ThreadLocalStorageCreate(void (*)(void*))': Host.cpp:(.text._ZN12lldb_private4Host24ThreadLocalStorageCreateEPFvPvE+0xd): undefined reference to `pthread_key_create' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(Host.o): In function `lldb_private::Host::ThreadLocalStorageGet(unsigned int)': Host.cpp:(.text._ZN12lldb_private4Host21ThreadLocalStorageGetEj+0x1): undefined reference to `pthread_getspecific' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(Host.o): In function `lldb_private::Host::ThreadLocalStorageSet(unsigned int, void*)': Host.cpp:(.text._ZN12lldb_private4Host21ThreadLocalStorageSetEjPv+0x1): undefined reference to `pthread_setspecific' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(Mutex.o): In function `lldb_private::Mutex::Mutex(lldb_private::Mutex::Type)': Mutex.cpp:(.text._ZN12lldb_private5MutexC2ENS0_4TypeE+0x4c): undefined reference to `pthread_mutexattr_init' Mutex.cpp:(.text._ZN12lldb_private5MutexC2ENS0_4TypeE+0x7a): undefined reference to `pthread_mutexattr_destroy' Mutex.cpp:(.text._ZN12lldb_private5MutexC2ENS0_4TypeE+0xa9): undefined reference to `pthread_mutexattr_settype' Mutex.cpp:(.text._ZN12lldb_private5MutexC2ENS0_4TypeE+0xd6): undefined reference to `pthread_mutexattr_settype' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(Mutex.o): In function `lldb_private::Mutex::TryLock(char const*)': Mutex.cpp:(.text._ZN12lldb_private5Mutex7TryLockEPKc+0x1): undefined reference to `pthread_mutex_trylock' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(ProcessRunLock.o): In function `lldb_private::ProcessRunLock::ProcessRunLock()': ProcessRunLock.cpp:(.text._ZN12lldb_private14ProcessRunLockC2Ev+0x7): undefined reference to `pthread_rwlock_init' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(ProcessRunLock.o): In function `lldb_private::ProcessRunLock::~ProcessRunLock()': ProcessRunLock.cpp:(.text._ZN12lldb_private14ProcessRunLockD2Ev+0x1): undefined reference to `pthread_rwlock_destroy' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(ProcessRunLock.o): In function `lldb_private::ProcessRunLock::ReadTryLock()': ProcessRunLock.cpp:(.text._ZN12lldb_private14ProcessRunLock11ReadTryLockEv+0x5): undefined reference to `pthread_rwlock_rdlock' ProcessRunLock.cpp:(.text._ZN12lldb_private14ProcessRunLock11ReadTryLockEv+0x24): undefined reference to `pthread_rwlock_unlock' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(ProcessRunLock.o): In function `lldb_private::ProcessRunLock::ReadUnlock()': ProcessRunLock.cpp:(.text._ZN12lldb_private14ProcessRunLock10ReadUnlockEv+0x5): undefined reference to `pthread_rwlock_unlock' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(ProcessRunLock.o): In function `lldb_private::ProcessRunLock::SetRunning()': ProcessRunLock.cpp:(.text._ZN12lldb_private14ProcessRunLock10SetRunningEv+0x5): undefined reference to `pthread_rwlock_wrlock' ProcessRunLock.cpp:(.text._ZN12lldb_private14ProcessRunLock10SetRunningEv+0x11): undefined reference to `pthread_rwlock_unlock' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(ProcessRunLock.o): In function `lldb_private::ProcessRunLock::TrySetRunning()': ProcessRunLock.cpp:(.text._ZN12lldb_private14ProcessRunLock13TrySetRunningEv+0xa): undefined reference to `pthread_rwlock_trywrlock' ProcessRunLock.cpp:(.text._ZN12lldb_private14ProcessRunLock13TrySetRunningEv+0x20): undefined reference to `pthread_rwlock_unlock' /mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldbHostCommon.a(ProcessRunLock.o): In function `lldb_private::ProcessRunLock::SetStopped()': ProcessRunLock.cpp:(.text._ZN12lldb_private14ProcessRunLock10SetStoppedEv+0x5): undefined reference to `pthread_rwlock_wrlock' ProcessRunLock.cpp:(.text._ZN12lldb_private14ProcessRunLock10SetStoppedEv+0x11): undefined reference to `pthread_rwlock_unlock' collect2: error: ld returned 1 exit status make[6]: *** [/mnt/hdd/mlubin/julia-0.4/deps/llvm-svn/build_Release+Asserts/Release+Asserts/lib/liblldb.so] Error 1 On Wed, Sep 10, 2014 at 1:00 PM, Zachary Turner <ztur...@google.com> wrote: > Threading should be enabled by default in LLVM, you have to go out of your > way to disable it. > > > On Tue, Sep 9, 2014 at 5:12 PM, Greg Clayton <gclay...@apple.com> wrote: >> >> Because LLVM enables threading manually, this is the main reason we didn't >> use their locking primitives. >> >> I am not sure if we recently started using any of LLVM threading stuff >> that gets disabled (Zach's changes?) when threading isn't enabled in LLVM, >> but I don't believe we have enabled threading in LLVM builds. >> >> Can you elaborate on what is making the build fail now after you disable >> threads? >> >> > On Sep 9, 2014, at 4:50 PM, Keno Fischer <kfisc...@college.harvard.edu> >> > wrote: >> > >> > We build LLVM with threads disabled by default (using make&configure). >> > Recently this started causing the LLDB build to fail. I'm not sure if >> > this is because of changes to LLDB or the LLVM build system in general >> > but it brings me to two questions. First, is it now necessary to build >> > LLVM with threads enabled to build LLDB? And, second, if not, is it >> > reasonable to link in pthread even when --disable-threads is passed to >> > ./configure, since I don't believe LLDB can be built without threading >> > support entirely? >> > >> > Thanks, >> > Keno >> > _______________________________________________ >> > lldb-dev mailing list >> > lldb-dev@cs.uiuc.edu >> > http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev >> >> _______________________________________________ >> lldb-dev mailing list >> lldb-dev@cs.uiuc.edu >> http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev > > _______________________________________________ lldb-dev mailing list lldb-dev@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
