| //===-- Host.cpp ------------------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/Host/Host.h" |
| #include "lldb/Core/ArchSpec.h" |
| #include "lldb/Core/ConstString.h" |
| #include "lldb/Core/Error.h" |
| #include "lldb/Core/FileSpec.h" |
| #include "lldb/Core/Log.h" |
| #include "lldb/Core/StreamString.h" |
| #include "lldb/Host/Mutex.h" |
| |
| #include <dlfcn.h> |
| #include <errno.h> |
| #include <sys/sysctl.h> |
| #include <sys/wait.h> |
| |
| #if defined (__APPLE__) |
| #include <dispatch/dispatch.h> |
| #include <libproc.h> |
| #include <mach-o/dyld.h> |
| #endif |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| struct MonitorInfo |
| { |
| lldb::pid_t pid; // The process ID to monitor |
| Host::MonitorChildProcessCallback callback; // The callback function to call when "pid" exits or signals |
| void *callback_baton; // The callback baton for the callback function |
| bool monitor_signals; // If true, call the callback when "pid" gets signaled. |
| }; |
| |
| static void * |
| MonitorChildProcessThreadFunction (void *arg); |
| |
| lldb::thread_t |
| Host::StartMonitoringChildProcess |
| ( |
| Host::MonitorChildProcessCallback callback, |
| void *callback_baton, |
| lldb::pid_t pid, |
| bool monitor_signals |
| ) |
| { |
| lldb::thread_t thread = LLDB_INVALID_HOST_THREAD; |
| if (callback) |
| { |
| std::auto_ptr<MonitorInfo> info_ap(new MonitorInfo); |
| |
| info_ap->pid = pid; |
| info_ap->callback = callback; |
| info_ap->callback_baton = callback_baton; |
| info_ap->monitor_signals = monitor_signals; |
| |
| char thread_name[256]; |
| ::snprintf (thread_name, sizeof(thread_name), "<lldb.host.wait4(pid=%i)>", pid); |
| thread = ThreadCreate (thread_name, |
| MonitorChildProcessThreadFunction, |
| info_ap.get(), |
| NULL); |
| |
| if (thread != LLDB_INVALID_HOST_THREAD) |
| info_ap.release(); |
| } |
| return thread; |
| } |
| |
| //------------------------------------------------------------------ |
| // Scoped class that will disable thread canceling when it is |
| // constructed, and exception safely restore the previous value it |
| // when it goes out of scope. |
| //------------------------------------------------------------------ |
| class ScopedPThreadCancelDisabler |
| { |
| public: |
| ScopedPThreadCancelDisabler() |
| { |
| // Disable the ability for this thread to be cancelled |
| int err = ::pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &m_old_state); |
| if (err != 0) |
| m_old_state = -1; |
| |
| } |
| |
| ~ScopedPThreadCancelDisabler() |
| { |
| // Restore the ability for this thread to be cancelled to what it |
| // previously was. |
| if (m_old_state != -1) |
| ::pthread_setcancelstate (m_old_state, 0); |
| } |
| private: |
| int m_old_state; // Save the old cancelability state. |
| }; |
| |
| static void * |
| MonitorChildProcessThreadFunction (void *arg) |
| { |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); |
| const char *function = __FUNCTION__; |
| if (log) |
| log->Printf ("%s (arg = %p) thread starting...", function, arg); |
| |
| MonitorInfo *info = (MonitorInfo *)arg; |
| |
| const Host::MonitorChildProcessCallback callback = info->callback; |
| void * const callback_baton = info->callback_baton; |
| const lldb::pid_t pid = info->pid; |
| const bool monitor_signals = info->monitor_signals; |
| |
| delete info; |
| |
| int status = -1; |
| const int options = 0; |
| struct rusage *rusage = NULL; |
| while (1) |
| { |
| log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS); |
| if (log) |
| log->Printf("%s ::wait4 (pid = %i, &status, options = %i, rusage = %p)...", function, pid, options, rusage); |
| |
| // Wait for all child processes |
| ::pthread_testcancel (); |
| const lldb::pid_t wait_pid = ::wait4 (pid, &status, options, rusage); |
| ::pthread_testcancel (); |
| |
| if (wait_pid == -1) |
| { |
| if (errno == EINTR) |
| continue; |
| else |
| break; |
| } |
| else if (wait_pid == pid) |
| { |
| bool exited = false; |
| int signal = 0; |
| int exit_status = 0; |
| const char *status_cstr = NULL; |
| if (WIFSTOPPED(status)) |
| { |
| signal = WSTOPSIG(status); |
| status_cstr = "STOPPED"; |
| } |
| else if (WIFEXITED(status)) |
| { |
| exit_status = WEXITSTATUS(status); |
| status_cstr = "EXITED"; |
| exited = true; |
| } |
| else if (WIFSIGNALED(status)) |
| { |
| signal = WTERMSIG(status); |
| status_cstr = "SIGNALED"; |
| exited = true; |
| exit_status = -1; |
| } |
| else |
| { |
| status_cstr = "(???)"; |
| } |
| |
| // Scope for pthread_cancel_disabler |
| { |
| ScopedPThreadCancelDisabler pthread_cancel_disabler; |
| |
| log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS); |
| if (log) |
| log->Printf ("%s ::wait4 (pid = %i, &status, options = %i, rusage = %p) => pid = %i, status = 0x%8.8x (%s), signal = %i, exit_state = %i", |
| function, |
| wait_pid, |
| options, |
| rusage, |
| pid, |
| status, |
| status_cstr, |
| signal, |
| exit_status); |
| |
| if (exited || (signal != 0 && monitor_signals)) |
| { |
| bool callback_return = callback (callback_baton, pid, signal, exit_status); |
| |
| // If our process exited, then this thread should exit |
| if (exited) |
| break; |
| // If the callback returns true, it means this process should |
| // exit |
| if (callback_return) |
| break; |
| } |
| } |
| } |
| } |
| |
| log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS); |
| if (log) |
| log->Printf ("%s (arg = %p) thread exiting...", __FUNCTION__, arg); |
| |
| return NULL; |
| } |
| |
| size_t |
| Host::GetPageSize() |
| { |
| return ::getpagesize(); |
| } |
| |
| //------------------------------------------------------------------ |
| // Returns true if the host system is Big Endian. |
| //------------------------------------------------------------------ |
| ByteOrder |
| Host::GetByteOrder () |
| { |
| union EndianTest |
| { |
| uint32_t num; |
| uint8_t bytes[sizeof(uint32_t)]; |
| } endian = { (uint16_t)0x11223344 }; |
| switch (endian.bytes[0]) |
| { |
| case 0x11: return eByteOrderLittle; |
| case 0x44: return eByteOrderBig; |
| case 0x33: return eByteOrderPDP; |
| } |
| return eByteOrderInvalid; |
| } |
| |
| const ArchSpec & |
| Host::GetArchitecture () |
| { |
| static ArchSpec g_host_arch; |
| if (!g_host_arch.IsValid()) |
| { |
| #if defined (__APPLE__) |
| uint32_t cputype, cpusubtype; |
| uint32_t is_64_bit_capable; |
| size_t len = sizeof(cputype); |
| if (::sysctlbyname("hw.cputype", &cputype, &len, NULL, 0) == 0) |
| { |
| len = sizeof(cpusubtype); |
| if (::sysctlbyname("hw.cpusubtype", &cpusubtype, &len, NULL, 0) == 0) |
| g_host_arch.SetArch(cputype, cpusubtype); |
| |
| len = sizeof (is_64_bit_capable); |
| if (::sysctlbyname("hw.cpu64bit_capable", &is_64_bit_capable, &len, NULL, 0) == 0) |
| { |
| if (is_64_bit_capable) |
| { |
| if (cputype == CPU_TYPE_I386 && cpusubtype == CPU_SUBTYPE_486) |
| cpusubtype = CPU_SUBTYPE_I386_ALL; |
| |
| cputype |= CPU_ARCH_ABI64; |
| } |
| } |
| } |
| #elif defined (__linux__) |
| g_host_arch.SetArch(7u, 144u); |
| #endif |
| } |
| return g_host_arch; |
| } |
| |
| const ConstString & |
| Host::GetVendorString() |
| { |
| static ConstString g_vendor; |
| if (!g_vendor) |
| { |
| #if defined (__APPLE__) |
| char ostype[64]; |
| size_t len = sizeof(ostype); |
| if (::sysctlbyname("kern.ostype", &ostype, &len, NULL, 0) == 0) |
| g_vendor.SetCString (ostype); |
| else |
| g_vendor.SetCString("apple"); |
| #elif defined (__linux__) |
| g_vendor.SetCString("gnu"); |
| #endif |
| } |
| return g_vendor; |
| } |
| |
| const ConstString & |
| Host::GetOSString() |
| { |
| static ConstString g_os_string; |
| if (!g_os_string) |
| { |
| #if defined (__APPLE__) |
| g_os_string.SetCString("darwin"); |
| #elif defined (__linux__) |
| g_os_string.SetCString("linux"); |
| #endif |
| } |
| return g_os_string; |
| } |
| |
| const ConstString & |
| Host::GetTargetTriple() |
| { |
| static ConstString g_host_triple; |
| if (!(g_host_triple)) |
| { |
| StreamString triple; |
| triple.Printf("%s-%s-%s", |
| GetArchitecture().AsCString(), |
| GetVendorString().AsCString(), |
| GetOSString().AsCString()); |
| |
| std::transform (triple.GetString().begin(), |
| triple.GetString().end(), |
| triple.GetString().begin(), |
| ::tolower); |
| |
| g_host_triple.SetCString(triple.GetString().c_str()); |
| } |
| return g_host_triple; |
| } |
| |
| lldb::pid_t |
| Host::GetCurrentProcessID() |
| { |
| return ::getpid(); |
| } |
| |
| lldb::tid_t |
| Host::GetCurrentThreadID() |
| { |
| #if defined (__APPLE__) |
| return ::mach_thread_self(); |
| #else |
| return lldb::tid_t(pthread_self()); |
| #endif |
| } |
| |
| const char * |
| Host::GetSignalAsCString (int signo) |
| { |
| switch (signo) |
| { |
| case SIGHUP: return "SIGHUP"; // 1 hangup |
| case SIGINT: return "SIGINT"; // 2 interrupt |
| case SIGQUIT: return "SIGQUIT"; // 3 quit |
| case SIGILL: return "SIGILL"; // 4 illegal instruction (not reset when caught) |
| case SIGTRAP: return "SIGTRAP"; // 5 trace trap (not reset when caught) |
| case SIGABRT: return "SIGABRT"; // 6 abort() |
| #if defined(_POSIX_C_SOURCE) |
| case SIGPOLL: return "SIGPOLL"; // 7 pollable event ([XSR] generated, not supported) |
| #else // !_POSIX_C_SOURCE |
| case SIGEMT: return "SIGEMT"; // 7 EMT instruction |
| #endif // !_POSIX_C_SOURCE |
| case SIGFPE: return "SIGFPE"; // 8 floating point exception |
| case SIGKILL: return "SIGKILL"; // 9 kill (cannot be caught or ignored) |
| case SIGBUS: return "SIGBUS"; // 10 bus error |
| case SIGSEGV: return "SIGSEGV"; // 11 segmentation violation |
| case SIGSYS: return "SIGSYS"; // 12 bad argument to system call |
| case SIGPIPE: return "SIGPIPE"; // 13 write on a pipe with no one to read it |
| case SIGALRM: return "SIGALRM"; // 14 alarm clock |
| case SIGTERM: return "SIGTERM"; // 15 software termination signal from kill |
| case SIGURG: return "SIGURG"; // 16 urgent condition on IO channel |
| case SIGSTOP: return "SIGSTOP"; // 17 sendable stop signal not from tty |
| case SIGTSTP: return "SIGTSTP"; // 18 stop signal from tty |
| case SIGCONT: return "SIGCONT"; // 19 continue a stopped process |
| case SIGCHLD: return "SIGCHLD"; // 20 to parent on child stop or exit |
| case SIGTTIN: return "SIGTTIN"; // 21 to readers pgrp upon background tty read |
| case SIGTTOU: return "SIGTTOU"; // 22 like TTIN for output if (tp->t_local<OSTOP) |
| #if !defined(_POSIX_C_SOURCE) |
| case SIGIO: return "SIGIO"; // 23 input/output possible signal |
| #endif |
| case SIGXCPU: return "SIGXCPU"; // 24 exceeded CPU time limit |
| case SIGXFSZ: return "SIGXFSZ"; // 25 exceeded file size limit |
| case SIGVTALRM: return "SIGVTALRM"; // 26 virtual time alarm |
| case SIGPROF: return "SIGPROF"; // 27 profiling time alarm |
| #if !defined(_POSIX_C_SOURCE) |
| case SIGWINCH: return "SIGWINCH"; // 28 window size changes |
| case SIGINFO: return "SIGINFO"; // 29 information request |
| #endif |
| case SIGUSR1: return "SIGUSR1"; // 30 user defined signal 1 |
| case SIGUSR2: return "SIGUSR2"; // 31 user defined signal 2 |
| default: |
| break; |
| } |
| return NULL; |
| } |
| |
| void |
| Host::WillTerminate () |
| { |
| } |
| |
| #if !defined (__APPLE__) // see macosx/Host.mm |
| void |
| Host::ThreadCreated (const char *thread_name) |
| { |
| } |
| |
| void |
| Host::Backtrace (Stream &strm, uint32_t max_frames) |
| { |
| // TODO: Is there a way to backtrace the current process on linux? |
| } |
| |
| |
| size_t |
| Host::GetEnvironment (StringList &env) |
| { |
| // TODO: Is there a way to the host environment for this process on linux? |
| return 0; |
| } |
| |
| #endif |
| |
| struct HostThreadCreateInfo |
| { |
| std::string thread_name; |
| thread_func_t thread_fptr; |
| thread_arg_t thread_arg; |
| |
| HostThreadCreateInfo (const char *name, thread_func_t fptr, thread_arg_t arg) : |
| thread_name (name ? name : ""), |
| thread_fptr (fptr), |
| thread_arg (arg) |
| { |
| } |
| }; |
| |
| static thread_result_t |
| ThreadCreateTrampoline (thread_arg_t arg) |
| { |
| HostThreadCreateInfo *info = (HostThreadCreateInfo *)arg; |
| Host::ThreadCreated (info->thread_name.c_str()); |
| thread_func_t thread_fptr = info->thread_fptr; |
| thread_arg_t thread_arg = info->thread_arg; |
| |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD)); |
| if (log) |
| log->Printf("thread created"); |
| |
| delete info; |
| return thread_fptr (thread_arg); |
| } |
| |
| lldb::thread_t |
| Host::ThreadCreate |
| ( |
| const char *thread_name, |
| thread_func_t thread_fptr, |
| thread_arg_t thread_arg, |
| Error *error |
| ) |
| { |
| lldb::thread_t thread = LLDB_INVALID_HOST_THREAD; |
| |
| // Host::ThreadCreateTrampoline will delete this pointer for us. |
| HostThreadCreateInfo *info_ptr = new HostThreadCreateInfo (thread_name, thread_fptr, thread_arg); |
| |
| int err = ::pthread_create (&thread, NULL, ThreadCreateTrampoline, info_ptr); |
| if (err == 0) |
| { |
| if (error) |
| error->Clear(); |
| return thread; |
| } |
| |
| if (error) |
| error->SetError (err, eErrorTypePOSIX); |
| |
| return LLDB_INVALID_HOST_THREAD; |
| } |
| |
| bool |
| Host::ThreadCancel (lldb::thread_t thread, Error *error) |
| { |
| int err = ::pthread_cancel (thread); |
| if (error) |
| error->SetError(err, eErrorTypePOSIX); |
| return err == 0; |
| } |
| |
| bool |
| Host::ThreadDetach (lldb::thread_t thread, Error *error) |
| { |
| int err = ::pthread_detach (thread); |
| if (error) |
| error->SetError(err, eErrorTypePOSIX); |
| return err == 0; |
| } |
| |
| bool |
| Host::ThreadJoin (lldb::thread_t thread, thread_result_t *thread_result_ptr, Error *error) |
| { |
| int err = ::pthread_join (thread, thread_result_ptr); |
| if (error) |
| error->SetError(err, eErrorTypePOSIX); |
| return err == 0; |
| } |
| |
| //------------------------------------------------------------------ |
| // Control access to a static file thread name map using a single |
| // static function to avoid a static constructor. |
| //------------------------------------------------------------------ |
| static const char * |
| ThreadNameAccessor (bool get, lldb::pid_t pid, lldb::tid_t tid, const char *name) |
| { |
| uint64_t pid_tid = ((uint64_t)pid << 32) | (uint64_t)tid; |
| |
| static pthread_mutex_t g_mutex = PTHREAD_MUTEX_INITIALIZER; |
| Mutex::Locker locker(&g_mutex); |
| |
| typedef std::map<uint64_t, std::string> thread_name_map; |
| // rdar://problem/8153284 |
| // Fixed a crasher where during shutdown, loggings attempted to access the |
| // thread name but the static map instance had already been destructed. |
| // Another approach is to introduce a static guard object which monitors its |
| // own destruction and raises a flag, but this incurs more overhead. |
| static thread_name_map *g_thread_names_ptr = new thread_name_map(); |
| thread_name_map &g_thread_names = *g_thread_names_ptr; |
| |
| if (get) |
| { |
| // See if the thread name exists in our thread name pool |
| thread_name_map::iterator pos = g_thread_names.find(pid_tid); |
| if (pos != g_thread_names.end()) |
| return pos->second.c_str(); |
| } |
| else |
| { |
| // Set the thread name |
| g_thread_names[pid_tid] = name; |
| } |
| return NULL; |
| } |
| |
| const char * |
| Host::GetThreadName (lldb::pid_t pid, lldb::tid_t tid) |
| { |
| const char *name = ThreadNameAccessor (true, pid, tid, NULL); |
| if (name == NULL) |
| { |
| #if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED > MAC_OS_X_VERSION_10_5 |
| // We currently can only get the name of a thread in the current process. |
| if (pid == Host::GetCurrentProcessID()) |
| { |
| char pthread_name[1024]; |
| if (::pthread_getname_np (::pthread_from_mach_thread_np (tid), pthread_name, sizeof(pthread_name)) == 0) |
| { |
| if (pthread_name[0]) |
| { |
| // Set the thread in our string pool |
| ThreadNameAccessor (false, pid, tid, pthread_name); |
| // Get our copy of the thread name string |
| name = ThreadNameAccessor (true, pid, tid, NULL); |
| } |
| } |
| |
| if (name == NULL) |
| { |
| dispatch_queue_t current_queue = ::dispatch_get_current_queue (); |
| if (current_queue != NULL) |
| name = dispatch_queue_get_label (current_queue); |
| } |
| } |
| #endif |
| } |
| return name; |
| } |
| |
| void |
| Host::SetThreadName (lldb::pid_t pid, lldb::tid_t tid, const char *name) |
| { |
| lldb::pid_t curr_pid = Host::GetCurrentProcessID(); |
| lldb::tid_t curr_tid = Host::GetCurrentThreadID(); |
| if (pid == LLDB_INVALID_PROCESS_ID) |
| pid = curr_pid; |
| |
| if (tid == LLDB_INVALID_THREAD_ID) |
| tid = curr_tid; |
| |
| #if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED > MAC_OS_X_VERSION_10_5 |
| // Set the pthread name if possible |
| if (pid == curr_pid && tid == curr_tid) |
| { |
| ::pthread_setname_np (name); |
| } |
| #endif |
| ThreadNameAccessor (false, pid, tid, name); |
| } |
| |
| FileSpec |
| Host::GetProgramFileSpec () |
| { |
| static FileSpec g_program_filespec; |
| if (!g_program_filespec) |
| { |
| #if defined (__APPLE__) |
| char program_fullpath[PATH_MAX]; |
| // If DST is NULL, then return the number of bytes needed. |
| uint32_t len = sizeof(program_fullpath); |
| int err = _NSGetExecutablePath (program_fullpath, &len); |
| if (err == 0) |
| g_program_filespec.SetFile (program_fullpath, true); |
| else if (err == -1) |
| { |
| char *large_program_fullpath = (char *)::malloc (len + 1); |
| |
| err = _NSGetExecutablePath (large_program_fullpath, &len); |
| if (err == 0) |
| g_program_filespec.SetFile (large_program_fullpath, true); |
| |
| ::free (large_program_fullpath); |
| } |
| #elif defined (__linux__) |
| char exe_path[PATH_MAX]; |
| ssize_t len = readlink("/proc/self/exe", exe_path, sizeof(exe_path)); |
| if (len >= 0) |
| g_program_filespec = FileSpec(exe_path, true); |
| #elif defined (__FreeBSD__) |
| int exe_path_mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, getpid() }; |
| size_t exe_path_size; |
| if (sysctl(exe_path_mib, 4, NULL, &exe_path_size, NULL, 0) == 0) |
| { |
| char *exe_path = new char[exe_path_size]; |
| if (sysctl(exe_path_mib, 4, exe_path, &exe_path_size, NULL, 0) == 0) |
| g_program_filespec = FileSpec(exe_path, true); |
| } |
| #endif |
| } |
| return g_program_filespec; |
| } |
| |
| FileSpec |
| Host::GetModuleFileSpecForHostAddress (const void *host_addr) |
| { |
| FileSpec module_filespec; |
| Dl_info info; |
| if (::dladdr (host_addr, &info)) |
| { |
| if (info.dli_fname) |
| module_filespec.SetFile(info.dli_fname, true); |
| } |
| return module_filespec; |
| } |
| |
| #if !defined (__APPLE__) // see Host.mm |
| bool |
| Host::ResolveExecutableInBundle (FileSpec &file) |
| { |
| return false; |
| } |
| #endif |
| |
| |
| bool |
| Host::GetLLDBPath (PathType path_type, FileSpec &file_spec) |
| { |
| // To get paths related to LLDB we get the path to the executable that |
| // contains this function. On MacOSX this will be "LLDB.framework/.../LLDB", |
| // on linux this is assumed to be the "lldb" main executable. If LLDB on |
| // linux is actually in a shared library (lldb.so??) then this function will |
| // need to be modified to "do the right thing". |
| |
| switch (path_type) |
| { |
| case ePathTypeLLDBShlibDir: |
| { |
| static ConstString g_lldb_so_dir; |
| if (!g_lldb_so_dir) |
| { |
| FileSpec lldb_file_spec (Host::GetModuleFileSpecForHostAddress ((void *)Host::GetLLDBPath)); |
| g_lldb_so_dir = lldb_file_spec.GetDirectory(); |
| } |
| file_spec.GetDirectory() = g_lldb_so_dir; |
| return file_spec.GetDirectory(); |
| } |
| break; |
| |
| case ePathTypeSupportExecutableDir: |
| { |
| static ConstString g_lldb_support_exe_dir; |
| if (!g_lldb_support_exe_dir) |
| { |
| FileSpec lldb_file_spec; |
| if (GetLLDBPath (ePathTypeLLDBShlibDir, lldb_file_spec)) |
| { |
| char raw_path[PATH_MAX]; |
| char resolved_path[PATH_MAX]; |
| lldb_file_spec.GetPath(raw_path, sizeof(raw_path)); |
| |
| #if defined (__APPLE__) |
| char *framework_pos = ::strstr (raw_path, "LLDB.framework"); |
| if (framework_pos) |
| { |
| framework_pos += strlen("LLDB.framework"); |
| ::strncpy (framework_pos, "/Resources", PATH_MAX - (framework_pos - raw_path)); |
| } |
| #endif |
| FileSpec::Resolve (raw_path, resolved_path, sizeof(resolved_path)); |
| g_lldb_support_exe_dir.SetCString(resolved_path); |
| } |
| } |
| file_spec.GetDirectory() = g_lldb_support_exe_dir; |
| return file_spec.GetDirectory(); |
| } |
| break; |
| |
| case ePathTypeHeaderDir: |
| { |
| static ConstString g_lldb_headers_dir; |
| if (!g_lldb_headers_dir) |
| { |
| #if defined (__APPLE__) |
| FileSpec lldb_file_spec; |
| if (GetLLDBPath (ePathTypeLLDBShlibDir, lldb_file_spec)) |
| { |
| char raw_path[PATH_MAX]; |
| char resolved_path[PATH_MAX]; |
| lldb_file_spec.GetPath(raw_path, sizeof(raw_path)); |
| |
| char *framework_pos = ::strstr (raw_path, "LLDB.framework"); |
| if (framework_pos) |
| { |
| framework_pos += strlen("LLDB.framework"); |
| ::strncpy (framework_pos, "/Headers", PATH_MAX - (framework_pos - raw_path)); |
| } |
| FileSpec::Resolve (raw_path, resolved_path, sizeof(resolved_path)); |
| g_lldb_headers_dir.SetCString(resolved_path); |
| } |
| #else |
| // TODO: Anyone know how we can determine this for linux?? |
| g_lldb_headers_dir.SetCString ("/opt/local/include/lldb"); |
| #endif |
| } |
| file_spec.GetDirectory() = g_lldb_headers_dir; |
| return file_spec.GetDirectory(); |
| } |
| break; |
| |
| case ePathTypePythonDir: |
| { |
| // TODO: Anyone know how we can determine this for linux?? |
| // For linux we are currently assuming the location of the lldb |
| // binary that contains this function is the directory that will |
| // contain lldb.so, lldb.py and embedded_interpreter.py... |
| |
| static ConstString g_lldb_python_dir; |
| if (!g_lldb_python_dir) |
| { |
| FileSpec lldb_file_spec; |
| if (GetLLDBPath (ePathTypeLLDBShlibDir, lldb_file_spec)) |
| { |
| char raw_path[PATH_MAX]; |
| char resolved_path[PATH_MAX]; |
| lldb_file_spec.GetPath(raw_path, sizeof(raw_path)); |
| |
| #if defined (__APPLE__) |
| char *framework_pos = ::strstr (raw_path, "LLDB.framework"); |
| if (framework_pos) |
| { |
| framework_pos += strlen("LLDB.framework"); |
| ::strncpy (framework_pos, "/Resources/Python", PATH_MAX - (framework_pos - raw_path)); |
| } |
| #endif |
| FileSpec::Resolve (raw_path, resolved_path, sizeof(resolved_path)); |
| g_lldb_python_dir.SetCString(resolved_path); |
| } |
| } |
| file_spec.GetDirectory() = g_lldb_python_dir; |
| return file_spec.GetDirectory(); |
| } |
| break; |
| |
| default: |
| assert (!"Unhandled PathType"); |
| break; |
| } |
| |
| return false; |
| } |
| |
| uint32_t |
| Host::ListProcessesMatchingName (const char *name, StringList &matches, std::vector<lldb::pid_t> &pids) |
| { |
| uint32_t num_matches = 0; |
| |
| #if defined (__APPLE__) |
| int num_pids; |
| int size_of_pids; |
| std::vector<int> pid_list; |
| |
| size_of_pids = proc_listpids(PROC_ALL_PIDS, 0, NULL, 0); |
| if (size_of_pids == -1) |
| return 0; |
| |
| num_pids = size_of_pids/sizeof(int); |
| |
| pid_list.resize (size_of_pids); |
| size_of_pids = proc_listpids(PROC_ALL_PIDS, 0, &pid_list[0], size_of_pids); |
| if (size_of_pids == -1) |
| return 0; |
| |
| lldb::pid_t our_pid = getpid(); |
| |
| for (int i = 0; i < num_pids; i++) |
| { |
| struct proc_bsdinfo bsd_info; |
| int error = proc_pidinfo (pid_list[i], PROC_PIDTBSDINFO, (uint64_t) 0, &bsd_info, PROC_PIDTBSDINFO_SIZE); |
| if (error == 0) |
| continue; |
| |
| // Don't offer to attach to zombie processes, already traced or exiting |
| // processes, and of course, ourselves... It looks like passing the second arg of |
| // 0 to proc_listpids will exclude zombies anyway, but that's not documented so... |
| if (((bsd_info.pbi_flags & (PROC_FLAG_TRACED | PROC_FLAG_INEXIT)) != 0) |
| || (bsd_info.pbi_status == SZOMB) |
| || (bsd_info.pbi_pid == our_pid)) |
| continue; |
| char pid_name[MAXCOMLEN * 2 + 1]; |
| int name_len; |
| name_len = proc_name(bsd_info.pbi_pid, pid_name, MAXCOMLEN * 2); |
| if (name_len == 0) |
| continue; |
| |
| if (strstr(pid_name, name) != pid_name) |
| continue; |
| matches.AppendString (pid_name); |
| pids.push_back (bsd_info.pbi_pid); |
| num_matches++; |
| } |
| #endif |
| |
| return num_matches; |
| } |
| |
| ArchSpec |
| Host::GetArchSpecForExistingProcess (lldb::pid_t pid) |
| { |
| ArchSpec return_spec; |
| |
| #if defined (__APPLE__) |
| struct proc_bsdinfo bsd_info; |
| int error = proc_pidinfo (pid, PROC_PIDTBSDINFO, (uint64_t) 0, &bsd_info, PROC_PIDTBSDINFO_SIZE); |
| if (error == 0) |
| return return_spec; |
| if (bsd_info.pbi_flags & PROC_FLAG_LP64) |
| return_spec.SetArch(LLDB_ARCH_DEFAULT_64BIT); |
| else |
| return_spec.SetArch(LLDB_ARCH_DEFAULT_32BIT); |
| #endif |
| |
| return return_spec; |
| } |
| |
| ArchSpec |
| Host::GetArchSpecForExistingProcess (const char *process_name) |
| { |
| ArchSpec returnSpec; |
| StringList matches; |
| std::vector<lldb::pid_t> pids; |
| if (ListProcessesMatchingName(process_name, matches, pids)) |
| { |
| if (matches.GetSize() == 1) |
| { |
| return GetArchSpecForExistingProcess(pids[0]); |
| } |
| } |
| return returnSpec; |
| } |
| |
| #if !defined (__APPLE__) // see macosx/Host.mm |
| bool |
| Host::OpenFileInExternalEditor (const FileSpec &file_spec, uint32_t line_no) |
| { |
| return false; |
| } |
| |
| void |
| Host::SetCrashDescriptionWithFormat (const char *format, ...) |
| { |
| } |
| |
| void |
| Host::SetCrashDescription (const char *description) |
| { |
| } |
| |
| lldb::pid_t |
| LaunchApplication (const FileSpec &app_file_spec) |
| { |
| return LLDB_INVALID_PROCESS_ID; |
| } |
| |
| lldb::pid_t |
| Host::LaunchInNewTerminal |
| ( |
| const char *tty_name, |
| const char **argv, |
| const char **envp, |
| const ArchSpec *arch_spec, |
| bool stop_at_entry, |
| bool disable_aslr |
| ) |
| { |
| return LLDB_INVALID_PROCESS_ID; |
| } |
| |
| #endif |