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llvm-project/lldb/source/Host/common/Host.cpp

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//===-- 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&LTOSTOP)
#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)
{
}
#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);
#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);
}
#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 exectuable 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 (FileSpec &file_spec, uint32_t line_no)
{
return false;
}
lldb::pid_t
LaunchApplication (const FileSpec &app_file_spec)
{
return LLDB_INVALID_PROCESS_ID;
}
lldb::pid_t
Host::LaunchInNewTerminal
(
const char **argv,
const char **envp,
const ArchSpec *arch_spec,
bool stop_at_entry,
bool disable_aslr
)
{
return LLDB_INVALID_PROCESS_ID;
}
#endif
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