| //===-- DNB.cpp -------------------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Created by Greg Clayton on 3/23/07. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "DNB.h" |
| #include <inttypes.h> |
| #include <signal.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/resource.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <unistd.h> |
| #include <sys/sysctl.h> |
| #include <map> |
| #include <vector> |
| #include <libproc.h> |
| |
| #define TRY_KQUEUE 1 |
| |
| #ifdef TRY_KQUEUE |
| #include <sys/event.h> |
| #include <sys/time.h> |
| #ifdef NOTE_EXIT_DETAIL |
| #define USE_KQUEUE |
| #endif |
| #endif |
| |
| #include "MacOSX/MachProcess.h" |
| #include "MacOSX/MachTask.h" |
| #include "MacOSX/Genealogy.h" |
| #include "MacOSX/ThreadInfo.h" |
| #include "CFString.h" |
| #include "DNBLog.h" |
| #include "DNBDataRef.h" |
| #include "DNBThreadResumeActions.h" |
| #include "DNBTimer.h" |
| #include "CFBundle.h" |
| |
| |
| typedef std::shared_ptr<MachProcess> MachProcessSP; |
| typedef std::map<nub_process_t, MachProcessSP> ProcessMap; |
| typedef ProcessMap::iterator ProcessMapIter; |
| typedef ProcessMap::const_iterator ProcessMapConstIter; |
| |
| size_t GetAllInfos (std::vector<struct kinfo_proc>& proc_infos); |
| static size_t GetAllInfosMatchingName (const char *process_name, std::vector<struct kinfo_proc>& matching_proc_infos); |
| |
| //---------------------------------------------------------------------- |
| // A Thread safe singleton to get a process map pointer. |
| // |
| // Returns a pointer to the existing process map, or a pointer to a |
| // newly created process map if CAN_CREATE is non-zero. |
| //---------------------------------------------------------------------- |
| static ProcessMap* |
| GetProcessMap(bool can_create) |
| { |
| static ProcessMap* g_process_map_ptr = NULL; |
| |
| if (can_create && g_process_map_ptr == NULL) |
| { |
| static pthread_mutex_t g_process_map_mutex = PTHREAD_MUTEX_INITIALIZER; |
| PTHREAD_MUTEX_LOCKER (locker, &g_process_map_mutex); |
| if (g_process_map_ptr == NULL) |
| g_process_map_ptr = new ProcessMap; |
| } |
| return g_process_map_ptr; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Add PID to the shared process pointer map. |
| // |
| // Return non-zero value if we succeed in adding the process to the map. |
| // The only time this should fail is if we run out of memory and can't |
| // allocate a ProcessMap. |
| //---------------------------------------------------------------------- |
| static nub_bool_t |
| AddProcessToMap (nub_process_t pid, MachProcessSP& procSP) |
| { |
| ProcessMap* process_map = GetProcessMap(true); |
| if (process_map) |
| { |
| process_map->insert(std::make_pair(pid, procSP)); |
| return true; |
| } |
| return false; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Remove the shared pointer for PID from the process map. |
| // |
| // Returns the number of items removed from the process map. |
| //---------------------------------------------------------------------- |
| static size_t |
| RemoveProcessFromMap (nub_process_t pid) |
| { |
| ProcessMap* process_map = GetProcessMap(false); |
| if (process_map) |
| { |
| return process_map->erase(pid); |
| } |
| return 0; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Get the shared pointer for PID from the existing process map. |
| // |
| // Returns true if we successfully find a shared pointer to a |
| // MachProcess object. |
| //---------------------------------------------------------------------- |
| static nub_bool_t |
| GetProcessSP (nub_process_t pid, MachProcessSP& procSP) |
| { |
| ProcessMap* process_map = GetProcessMap(false); |
| if (process_map != NULL) |
| { |
| ProcessMapIter pos = process_map->find(pid); |
| if (pos != process_map->end()) |
| { |
| procSP = pos->second; |
| return true; |
| } |
| } |
| procSP.reset(); |
| return false; |
| } |
| |
| #ifdef USE_KQUEUE |
| void * |
| kqueue_thread (void *arg) |
| { |
| int kq_id = (int) (intptr_t) arg; |
| |
| struct kevent death_event; |
| while (1) |
| { |
| int n_events = kevent (kq_id, NULL, 0, &death_event, 1, NULL); |
| if (n_events == -1) |
| { |
| if (errno == EINTR) |
| continue; |
| else |
| { |
| DNBLogError ("kqueue failed with error: (%d): %s", errno, strerror(errno)); |
| return NULL; |
| } |
| } |
| else if (death_event.flags & EV_ERROR) |
| { |
| int error_no = death_event.data; |
| const char *error_str = strerror(death_event.data); |
| if (error_str == NULL) |
| error_str = "Unknown error"; |
| DNBLogError ("Failed to initialize kqueue event: (%d): %s", error_no, error_str ); |
| return NULL; |
| } |
| else |
| { |
| int status; |
| const pid_t pid = (pid_t)death_event.ident; |
| const pid_t child_pid = waitpid (pid, &status, 0); |
| |
| |
| bool exited = false; |
| int signal = 0; |
| int exit_status = 0; |
| const char *status_cstr = NULL; |
| if (WIFSTOPPED(status)) |
| { |
| signal = WSTOPSIG(status); |
| status_cstr = "STOPPED"; |
| DNBLogThreadedIf(LOG_PROCESS, "waitpid (%i) -> STOPPED (signal = %i)", child_pid, signal); |
| } |
| else if (WIFEXITED(status)) |
| { |
| exit_status = WEXITSTATUS(status); |
| status_cstr = "EXITED"; |
| exited = true; |
| DNBLogThreadedIf(LOG_PROCESS, "waitpid (%i) -> EXITED (status = %i)", child_pid, exit_status); |
| } |
| else if (WIFSIGNALED(status)) |
| { |
| signal = WTERMSIG(status); |
| status_cstr = "SIGNALED"; |
| if (child_pid == abs(pid)) |
| { |
| DNBLogThreadedIf(LOG_PROCESS, "waitpid (%i) -> SIGNALED and EXITED (signal = %i)", child_pid, signal); |
| char exit_info[64]; |
| ::snprintf (exit_info, sizeof(exit_info), "Terminated due to signal %i", signal); |
| DNBProcessSetExitInfo (child_pid, exit_info); |
| exited = true; |
| exit_status = INT8_MAX; |
| } |
| else |
| { |
| DNBLogThreadedIf(LOG_PROCESS, "waitpid (%i) -> SIGNALED (signal = %i)", child_pid, signal); |
| } |
| } |
| |
| if (exited) |
| { |
| if (death_event.data & NOTE_EXIT_MEMORY) |
| DNBProcessSetExitInfo (child_pid, "Terminated due to memory issue"); |
| else if (death_event.data & NOTE_EXIT_DECRYPTFAIL) |
| DNBProcessSetExitInfo (child_pid, "Terminated due to decrypt failure"); |
| else if (death_event.data & NOTE_EXIT_CSERROR) |
| DNBProcessSetExitInfo (child_pid, "Terminated due to code signing error"); |
| |
| DNBLogThreadedIf(LOG_PROCESS, "waitpid_process_thread (): setting exit status for pid = %i to %i", child_pid, exit_status); |
| DNBProcessSetExitStatus (child_pid, status); |
| return NULL; |
| } |
| } |
| } |
| } |
| |
| static bool |
| spawn_kqueue_thread (pid_t pid) |
| { |
| pthread_t thread; |
| int kq_id; |
| |
| kq_id = kqueue(); |
| if (kq_id == -1) |
| { |
| DNBLogError ("Could not get kqueue for pid = %i.", pid); |
| return false; |
| } |
| |
| struct kevent reg_event; |
| |
| EV_SET(®_event, pid, EVFILT_PROC, EV_ADD, NOTE_EXIT|NOTE_EXITSTATUS|NOTE_EXIT_DETAIL, 0, NULL); |
| // Register the event: |
| int result = kevent (kq_id, ®_event, 1, NULL, 0, NULL); |
| if (result != 0) |
| { |
| DNBLogError ("Failed to register kqueue NOTE_EXIT event for pid %i, error: %d.", pid, result); |
| return false; |
| } |
| |
| int ret = ::pthread_create (&thread, NULL, kqueue_thread, (void *)(intptr_t)kq_id); |
| |
| // pthread_create returns 0 if successful |
| if (ret == 0) |
| { |
| ::pthread_detach (thread); |
| return true; |
| } |
| return false; |
| } |
| #endif // #if USE_KQUEUE |
| |
| static void * |
| waitpid_thread (void *arg) |
| { |
| const pid_t pid = (pid_t)(intptr_t)arg; |
| int status; |
| while (1) |
| { |
| pid_t child_pid = waitpid(pid, &status, 0); |
| DNBLogThreadedIf(LOG_PROCESS, "waitpid_thread (): waitpid (pid = %i, &status, 0) => %i, status = %i, errno = %i", pid, child_pid, status, errno); |
| |
| if (child_pid < 0) |
| { |
| if (errno == EINTR) |
| continue; |
| break; |
| } |
| else |
| { |
| if (WIFSTOPPED(status)) |
| { |
| continue; |
| } |
| else// if (WIFEXITED(status) || WIFSIGNALED(status)) |
| { |
| DNBLogThreadedIf(LOG_PROCESS, "waitpid_thread (): setting exit status for pid = %i to %i", child_pid, status); |
| DNBProcessSetExitStatus (child_pid, status); |
| return NULL; |
| } |
| } |
| } |
| |
| // We should never exit as long as our child process is alive, so if we |
| // do something else went wrong and we should exit... |
| DNBLogThreadedIf(LOG_PROCESS, "waitpid_thread (): main loop exited, setting exit status to an invalid value (-1) for pid %i", pid); |
| DNBProcessSetExitStatus (pid, -1); |
| return NULL; |
| } |
| static bool |
| spawn_waitpid_thread (pid_t pid) |
| { |
| #ifdef USE_KQUEUE |
| bool success = spawn_kqueue_thread (pid); |
| if (success) |
| return true; |
| #endif |
| |
| pthread_t thread; |
| int ret = ::pthread_create (&thread, NULL, waitpid_thread, (void *)(intptr_t)pid); |
| // pthread_create returns 0 if successful |
| if (ret == 0) |
| { |
| ::pthread_detach (thread); |
| return true; |
| } |
| return false; |
| } |
| |
| nub_process_t |
| DNBProcessLaunch (const char *path, |
| char const *argv[], |
| const char *envp[], |
| const char *working_directory, // NULL => don't change, non-NULL => set working directory for inferior to this |
| const char *stdin_path, |
| const char *stdout_path, |
| const char *stderr_path, |
| bool no_stdio, |
| nub_launch_flavor_t launch_flavor, |
| int disable_aslr, |
| const char *event_data, |
| char *err_str, |
| size_t err_len) |
| { |
| DNBLogThreadedIf(LOG_PROCESS, "%s ( path='%s', argv = %p, envp = %p, working_dir=%s, stdin=%s, stdout=%s, stderr=%s, no-stdio=%i, launch_flavor = %u, disable_aslr = %d, err = %p, err_len = %llu) called...", |
| __FUNCTION__, |
| path, |
| argv, |
| envp, |
| working_directory, |
| stdin_path, |
| stdout_path, |
| stderr_path, |
| no_stdio, |
| launch_flavor, |
| disable_aslr, |
| err_str, |
| (uint64_t)err_len); |
| |
| if (err_str && err_len > 0) |
| err_str[0] = '\0'; |
| struct stat path_stat; |
| if (::stat(path, &path_stat) == -1) |
| { |
| char stat_error[256]; |
| ::strerror_r (errno, stat_error, sizeof(stat_error)); |
| snprintf(err_str, err_len, "%s (%s)", stat_error, path); |
| return INVALID_NUB_PROCESS; |
| } |
| |
| MachProcessSP processSP (new MachProcess); |
| if (processSP.get()) |
| { |
| DNBError launch_err; |
| pid_t pid = processSP->LaunchForDebug (path, |
| argv, |
| envp, |
| working_directory, |
| stdin_path, |
| stdout_path, |
| stderr_path, |
| no_stdio, |
| launch_flavor, |
| disable_aslr, |
| event_data, |
| launch_err); |
| if (err_str) |
| { |
| *err_str = '\0'; |
| if (launch_err.Fail()) |
| { |
| const char *launch_err_str = launch_err.AsString(); |
| if (launch_err_str) |
| { |
| strncpy(err_str, launch_err_str, err_len-1); |
| err_str[err_len-1] = '\0'; // Make sure the error string is terminated |
| } |
| } |
| } |
| |
| DNBLogThreadedIf(LOG_PROCESS, "(DebugNub) new pid is %d...", pid); |
| |
| if (pid != INVALID_NUB_PROCESS) |
| { |
| // Spawn a thread to reap our child inferior process... |
| spawn_waitpid_thread (pid); |
| |
| if (processSP->Task().TaskPortForProcessID (launch_err) == TASK_NULL) |
| { |
| // We failed to get the task for our process ID which is bad. |
| // Kill our process otherwise it will be stopped at the entry |
| // point and get reparented to someone else and never go away. |
| DNBLog ("Could not get task port for process, sending SIGKILL and exiting."); |
| kill (SIGKILL, pid); |
| |
| if (err_str && err_len > 0) |
| { |
| if (launch_err.AsString()) |
| { |
| ::snprintf (err_str, err_len, "failed to get the task for process %i (%s)", pid, launch_err.AsString()); |
| } |
| else |
| { |
| ::snprintf (err_str, err_len, "failed to get the task for process %i", pid); |
| } |
| } |
| } |
| else |
| { |
| bool res = AddProcessToMap(pid, processSP); |
| assert(res && "Couldn't add process to map!"); |
| return pid; |
| } |
| } |
| } |
| return INVALID_NUB_PROCESS; |
| } |
| |
| nub_process_t |
| DNBProcessAttachByName (const char *name, struct timespec *timeout, char *err_str, size_t err_len) |
| { |
| if (err_str && err_len > 0) |
| err_str[0] = '\0'; |
| std::vector<struct kinfo_proc> matching_proc_infos; |
| size_t num_matching_proc_infos = GetAllInfosMatchingName(name, matching_proc_infos); |
| if (num_matching_proc_infos == 0) |
| { |
| DNBLogError ("error: no processes match '%s'\n", name); |
| return INVALID_NUB_PROCESS; |
| } |
| else if (num_matching_proc_infos > 1) |
| { |
| DNBLogError ("error: %llu processes match '%s':\n", (uint64_t)num_matching_proc_infos, name); |
| size_t i; |
| for (i=0; i<num_matching_proc_infos; ++i) |
| DNBLogError ("%6u - %s\n", matching_proc_infos[i].kp_proc.p_pid, matching_proc_infos[i].kp_proc.p_comm); |
| return INVALID_NUB_PROCESS; |
| } |
| |
| return DNBProcessAttach (matching_proc_infos[0].kp_proc.p_pid, timeout, err_str, err_len); |
| } |
| |
| nub_process_t |
| DNBProcessAttach (nub_process_t attach_pid, struct timespec *timeout, char *err_str, size_t err_len) |
| { |
| if (err_str && err_len > 0) |
| err_str[0] = '\0'; |
| |
| pid_t pid = INVALID_NUB_PROCESS; |
| MachProcessSP processSP(new MachProcess); |
| if (processSP.get()) |
| { |
| DNBLogThreadedIf(LOG_PROCESS, "(DebugNub) attaching to pid %d...", attach_pid); |
| pid = processSP->AttachForDebug (attach_pid, err_str, err_len); |
| |
| if (pid != INVALID_NUB_PROCESS) |
| { |
| bool res = AddProcessToMap(pid, processSP); |
| assert(res && "Couldn't add process to map!"); |
| spawn_waitpid_thread(pid); |
| } |
| } |
| |
| while (pid != INVALID_NUB_PROCESS) |
| { |
| // Wait for process to start up and hit entry point |
| DNBLogThreadedIf (LOG_PROCESS, |
| "%s DNBProcessWaitForEvent (%4.4x, eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, true, INFINITE)...", |
| __FUNCTION__, |
| pid); |
| nub_event_t set_events = DNBProcessWaitForEvents (pid, |
| eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, |
| true, |
| timeout); |
| |
| DNBLogThreadedIf (LOG_PROCESS, |
| "%s DNBProcessWaitForEvent (%4.4x, eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, true, INFINITE) => 0x%8.8x", |
| __FUNCTION__, |
| pid, |
| set_events); |
| |
| if (set_events == 0) |
| { |
| if (err_str && err_len > 0) |
| snprintf(err_str, err_len, "operation timed out"); |
| pid = INVALID_NUB_PROCESS; |
| } |
| else |
| { |
| if (set_events & (eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged)) |
| { |
| nub_state_t pid_state = DNBProcessGetState (pid); |
| DNBLogThreadedIf (LOG_PROCESS, "%s process %4.4x state changed (eEventProcessStateChanged): %s", |
| __FUNCTION__, pid, DNBStateAsString(pid_state)); |
| |
| switch (pid_state) |
| { |
| default: |
| case eStateInvalid: |
| case eStateUnloaded: |
| case eStateAttaching: |
| case eStateLaunching: |
| case eStateSuspended: |
| break; // Ignore |
| |
| case eStateRunning: |
| case eStateStepping: |
| // Still waiting to stop at entry point... |
| break; |
| |
| case eStateStopped: |
| case eStateCrashed: |
| return pid; |
| |
| case eStateDetached: |
| case eStateExited: |
| if (err_str && err_len > 0) |
| snprintf(err_str, err_len, "process exited"); |
| return INVALID_NUB_PROCESS; |
| } |
| } |
| |
| DNBProcessResetEvents(pid, set_events); |
| } |
| } |
| |
| return INVALID_NUB_PROCESS; |
| } |
| |
| size_t |
| GetAllInfos (std::vector<struct kinfo_proc>& proc_infos) |
| { |
| size_t size = 0; |
| int name[] = { CTL_KERN, KERN_PROC, KERN_PROC_ALL }; |
| u_int namelen = sizeof(name)/sizeof(int); |
| int err; |
| |
| // Try to find out how many processes are around so we can |
| // size the buffer appropriately. sysctl's man page specifically suggests |
| // this approach, and says it returns a bit larger size than needed to |
| // handle any new processes created between then and now. |
| |
| err = ::sysctl (name, namelen, NULL, &size, NULL, 0); |
| |
| if ((err < 0) && (err != ENOMEM)) |
| { |
| proc_infos.clear(); |
| perror("sysctl (mib, miblen, NULL, &num_processes, NULL, 0)"); |
| return 0; |
| } |
| |
| |
| // Increase the size of the buffer by a few processes in case more have |
| // been spawned |
| proc_infos.resize (size / sizeof(struct kinfo_proc)); |
| size = proc_infos.size() * sizeof(struct kinfo_proc); // Make sure we don't exceed our resize... |
| err = ::sysctl (name, namelen, &proc_infos[0], &size, NULL, 0); |
| if (err < 0) |
| { |
| proc_infos.clear(); |
| return 0; |
| } |
| |
| // Trim down our array to fit what we actually got back |
| proc_infos.resize(size / sizeof(struct kinfo_proc)); |
| return proc_infos.size(); |
| } |
| |
| static size_t |
| GetAllInfosMatchingName(const char *full_process_name, std::vector<struct kinfo_proc>& matching_proc_infos) |
| { |
| |
| matching_proc_infos.clear(); |
| if (full_process_name && full_process_name[0]) |
| { |
| // We only get the process name, not the full path, from the proc_info. So just take the |
| // base name of the process name... |
| const char *process_name; |
| process_name = strrchr (full_process_name, '/'); |
| if (process_name == NULL) |
| process_name = full_process_name; |
| else |
| process_name++; |
| |
| const int process_name_len = strlen(process_name); |
| std::vector<struct kinfo_proc> proc_infos; |
| const size_t num_proc_infos = GetAllInfos(proc_infos); |
| if (num_proc_infos > 0) |
| { |
| uint32_t i; |
| for (i=0; i<num_proc_infos; i++) |
| { |
| // Skip zombie processes and processes with unset status |
| if (proc_infos[i].kp_proc.p_stat == 0 || proc_infos[i].kp_proc.p_stat == SZOMB) |
| continue; |
| |
| // Check for process by name. We only check the first MAXCOMLEN |
| // chars as that is all that kp_proc.p_comm holds. |
| |
| if (::strncasecmp(process_name, proc_infos[i].kp_proc.p_comm, MAXCOMLEN) == 0) |
| { |
| if (process_name_len > MAXCOMLEN) |
| { |
| // We found a matching process name whose first MAXCOMLEN |
| // characters match, but there is more to the name than |
| // this. We need to get the full process name. Use proc_pidpath, which will get |
| // us the full path to the executed process. |
| |
| char proc_path_buf[PATH_MAX]; |
| |
| int return_val = proc_pidpath (proc_infos[i].kp_proc.p_pid, proc_path_buf, PATH_MAX); |
| if (return_val > 0) |
| { |
| // Okay, now search backwards from that to see if there is a |
| // slash in the name. Note, even though we got all the args we don't care |
| // because the list data is just a bunch of concatenated null terminated strings |
| // so strrchr will start from the end of argv0. |
| |
| const char *argv_basename = strrchr(proc_path_buf, '/'); |
| if (argv_basename) |
| { |
| // Skip the '/' |
| ++argv_basename; |
| } |
| else |
| { |
| // We didn't find a directory delimiter in the process argv[0], just use what was in there |
| argv_basename = proc_path_buf; |
| } |
| |
| if (argv_basename) |
| { |
| if (::strncasecmp(process_name, argv_basename, PATH_MAX) == 0) |
| { |
| matching_proc_infos.push_back(proc_infos[i]); |
| } |
| } |
| } |
| } |
| else |
| { |
| // We found a matching process, add it to our list |
| matching_proc_infos.push_back(proc_infos[i]); |
| } |
| } |
| } |
| } |
| } |
| // return the newly added matches. |
| return matching_proc_infos.size(); |
| } |
| |
| nub_process_t |
| DNBProcessAttachWait (const char *waitfor_process_name, |
| nub_launch_flavor_t launch_flavor, |
| bool ignore_existing, |
| struct timespec *timeout_abstime, |
| useconds_t waitfor_interval, |
| char *err_str, |
| size_t err_len, |
| DNBShouldCancelCallback should_cancel_callback, |
| void *callback_data) |
| { |
| DNBError prepare_error; |
| std::vector<struct kinfo_proc> exclude_proc_infos; |
| size_t num_exclude_proc_infos; |
| |
| // If the PrepareForAttach returns a valid token, use MachProcess to check |
| // for the process, otherwise scan the process table. |
| |
| const void *attach_token = MachProcess::PrepareForAttach (waitfor_process_name, launch_flavor, true, prepare_error); |
| |
| if (prepare_error.Fail()) |
| { |
| DNBLogError ("Error in PrepareForAttach: %s", prepare_error.AsString()); |
| return INVALID_NUB_PROCESS; |
| } |
| |
| if (attach_token == NULL) |
| { |
| if (ignore_existing) |
| num_exclude_proc_infos = GetAllInfosMatchingName (waitfor_process_name, exclude_proc_infos); |
| else |
| num_exclude_proc_infos = 0; |
| } |
| |
| DNBLogThreadedIf (LOG_PROCESS, "Waiting for '%s' to appear...\n", waitfor_process_name); |
| |
| // Loop and try to find the process by name |
| nub_process_t waitfor_pid = INVALID_NUB_PROCESS; |
| |
| while (waitfor_pid == INVALID_NUB_PROCESS) |
| { |
| if (attach_token != NULL) |
| { |
| nub_process_t pid; |
| pid = MachProcess::CheckForProcess(attach_token); |
| if (pid != INVALID_NUB_PROCESS) |
| { |
| waitfor_pid = pid; |
| break; |
| } |
| } |
| else |
| { |
| |
| // Get the current process list, and check for matches that |
| // aren't in our original list. If anyone wants to attach |
| // to an existing process by name, they should do it with |
| // --attach=PROCNAME. Else we will wait for the first matching |
| // process that wasn't in our exclusion list. |
| std::vector<struct kinfo_proc> proc_infos; |
| const size_t num_proc_infos = GetAllInfosMatchingName (waitfor_process_name, proc_infos); |
| for (size_t i=0; i<num_proc_infos; i++) |
| { |
| nub_process_t curr_pid = proc_infos[i].kp_proc.p_pid; |
| for (size_t j=0; j<num_exclude_proc_infos; j++) |
| { |
| if (curr_pid == exclude_proc_infos[j].kp_proc.p_pid) |
| { |
| // This process was in our exclusion list, don't use it. |
| curr_pid = INVALID_NUB_PROCESS; |
| break; |
| } |
| } |
| |
| // If we didn't find CURR_PID in our exclusion list, then use it. |
| if (curr_pid != INVALID_NUB_PROCESS) |
| { |
| // We found our process! |
| waitfor_pid = curr_pid; |
| break; |
| } |
| } |
| } |
| |
| // If we haven't found our process yet, check for a timeout |
| // and then sleep for a bit until we poll again. |
| if (waitfor_pid == INVALID_NUB_PROCESS) |
| { |
| if (timeout_abstime != NULL) |
| { |
| // Check to see if we have a waitfor-duration option that |
| // has timed out? |
| if (DNBTimer::TimeOfDayLaterThan(*timeout_abstime)) |
| { |
| if (err_str && err_len > 0) |
| snprintf(err_str, err_len, "operation timed out"); |
| DNBLogError ("error: waiting for process '%s' timed out.\n", waitfor_process_name); |
| return INVALID_NUB_PROCESS; |
| } |
| } |
| |
| // Call the should cancel callback as well... |
| |
| if (should_cancel_callback != NULL |
| && should_cancel_callback (callback_data)) |
| { |
| DNBLogThreadedIf (LOG_PROCESS, "DNBProcessAttachWait cancelled by should_cancel callback."); |
| waitfor_pid = INVALID_NUB_PROCESS; |
| break; |
| } |
| |
| ::usleep (waitfor_interval); // Sleep for WAITFOR_INTERVAL, then poll again |
| } |
| } |
| |
| if (waitfor_pid != INVALID_NUB_PROCESS) |
| { |
| DNBLogThreadedIf (LOG_PROCESS, "Attaching to %s with pid %i...\n", waitfor_process_name, waitfor_pid); |
| waitfor_pid = DNBProcessAttach (waitfor_pid, timeout_abstime, err_str, err_len); |
| } |
| |
| bool success = waitfor_pid != INVALID_NUB_PROCESS; |
| MachProcess::CleanupAfterAttach (attach_token, success, prepare_error); |
| |
| return waitfor_pid; |
| } |
| |
| nub_bool_t |
| DNBProcessDetach (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| const bool remove = true; |
| DNBLogThreaded("Disabling breakpoints and watchpoints, and detaching from %d.", pid); |
| procSP->DisableAllBreakpoints(remove); |
| procSP->DisableAllWatchpoints (remove); |
| return procSP->Detach(); |
| } |
| return false; |
| } |
| |
| nub_bool_t |
| DNBProcessKill (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->Kill (); |
| } |
| return false; |
| } |
| |
| nub_bool_t |
| DNBProcessSignal (nub_process_t pid, int signal) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->Signal (signal); |
| } |
| return false; |
| } |
| |
| |
| nub_bool_t |
| DNBProcessInterrupt(nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->Interrupt(); |
| return false; |
| } |
| |
| nub_bool_t |
| DNBProcessSendEvent (nub_process_t pid, const char *event) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| // FIXME: Do something with the error... |
| DNBError send_error; |
| return procSP->SendEvent (event, send_error); |
| } |
| return false; |
| } |
| |
| |
| nub_bool_t |
| DNBProcessIsAlive (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return MachTask::IsValid (procSP->Task().TaskPort()); |
| } |
| return eStateInvalid; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Process and Thread state information |
| //---------------------------------------------------------------------- |
| nub_state_t |
| DNBProcessGetState (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->GetState(); |
| } |
| return eStateInvalid; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Process and Thread state information |
| //---------------------------------------------------------------------- |
| nub_bool_t |
| DNBProcessGetExitStatus (nub_process_t pid, int* status) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->GetExitStatus(status); |
| } |
| return false; |
| } |
| |
| nub_bool_t |
| DNBProcessSetExitStatus (nub_process_t pid, int status) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| procSP->SetExitStatus(status); |
| return true; |
| } |
| return false; |
| } |
| |
| const char * |
| DNBProcessGetExitInfo (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->GetExitInfo(); |
| } |
| return NULL; |
| } |
| |
| nub_bool_t |
| DNBProcessSetExitInfo (nub_process_t pid, const char *info) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| procSP->SetExitInfo(info); |
| return true; |
| } |
| return false; |
| } |
| |
| const char * |
| DNBThreadGetName (nub_process_t pid, nub_thread_t tid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->ThreadGetName(tid); |
| return NULL; |
| } |
| |
| |
| nub_bool_t |
| DNBThreadGetIdentifierInfo (nub_process_t pid, nub_thread_t tid, thread_identifier_info_data_t *ident_info) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetThreadList().GetIdentifierInfo(tid, ident_info); |
| return false; |
| } |
| |
| nub_state_t |
| DNBThreadGetState (nub_process_t pid, nub_thread_t tid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->ThreadGetState(tid); |
| } |
| return eStateInvalid; |
| } |
| |
| const char * |
| DNBStateAsString(nub_state_t state) |
| { |
| switch (state) |
| { |
| case eStateInvalid: return "Invalid"; |
| case eStateUnloaded: return "Unloaded"; |
| case eStateAttaching: return "Attaching"; |
| case eStateLaunching: return "Launching"; |
| case eStateStopped: return "Stopped"; |
| case eStateRunning: return "Running"; |
| case eStateStepping: return "Stepping"; |
| case eStateCrashed: return "Crashed"; |
| case eStateDetached: return "Detached"; |
| case eStateExited: return "Exited"; |
| case eStateSuspended: return "Suspended"; |
| } |
| return "nub_state_t ???"; |
| } |
| |
| Genealogy::ThreadActivitySP |
| DNBGetGenealogyInfoForThread (nub_process_t pid, nub_thread_t tid, bool &timed_out) |
| { |
| Genealogy::ThreadActivitySP thread_activity_sp; |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| thread_activity_sp = procSP->GetGenealogyInfoForThread (tid, timed_out); |
| return thread_activity_sp; |
| } |
| |
| Genealogy::ProcessExecutableInfoSP |
| DNBGetGenealogyImageInfo (nub_process_t pid, size_t idx) |
| { |
| Genealogy::ProcessExecutableInfoSP image_info_sp; |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| image_info_sp = procSP->GetGenealogyImageInfo (idx); |
| } |
| return image_info_sp; |
| } |
| |
| ThreadInfo::QoS |
| DNBGetRequestedQoSForThread (nub_process_t pid, nub_thread_t tid, nub_addr_t tsd, uint64_t dti_qos_class_index) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->GetRequestedQoS (tid, tsd, dti_qos_class_index); |
| } |
| return ThreadInfo::QoS(); |
| } |
| |
| nub_addr_t |
| DNBGetPThreadT (nub_process_t pid, nub_thread_t tid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->GetPThreadT (tid); |
| } |
| return INVALID_NUB_ADDRESS; |
| } |
| |
| nub_addr_t |
| DNBGetDispatchQueueT (nub_process_t pid, nub_thread_t tid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->GetDispatchQueueT (tid); |
| } |
| return INVALID_NUB_ADDRESS; |
| } |
| |
| nub_addr_t |
| DNBGetTSDAddressForThread (nub_process_t pid, nub_thread_t tid, uint64_t plo_pthread_tsd_base_address_offset, uint64_t plo_pthread_tsd_base_offset, uint64_t plo_pthread_tsd_entry_size) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->GetTSDAddressForThread (tid, plo_pthread_tsd_base_address_offset, plo_pthread_tsd_base_offset, plo_pthread_tsd_entry_size); |
| } |
| return INVALID_NUB_ADDRESS; |
| } |
| |
| |
| const char * |
| DNBProcessGetExecutablePath (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->Path(); |
| } |
| return NULL; |
| } |
| |
| nub_size_t |
| DNBProcessGetArgumentCount (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->ArgumentCount(); |
| } |
| return 0; |
| } |
| |
| const char * |
| DNBProcessGetArgumentAtIndex (nub_process_t pid, nub_size_t idx) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->ArgumentAtIndex (idx); |
| } |
| return NULL; |
| } |
| |
| |
| //---------------------------------------------------------------------- |
| // Execution control |
| //---------------------------------------------------------------------- |
| nub_bool_t |
| DNBProcessResume (nub_process_t pid, const DNBThreadResumeAction *actions, size_t num_actions) |
| { |
| DNBLogThreadedIf(LOG_PROCESS, "%s(pid = %4.4x)", __FUNCTION__, pid); |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| DNBThreadResumeActions thread_actions (actions, num_actions); |
| |
| // Below we add a default thread plan just in case one wasn't |
| // provided so all threads always know what they were supposed to do |
| if (thread_actions.IsEmpty()) |
| { |
| // No thread plans were given, so the default it to run all threads |
| thread_actions.SetDefaultThreadActionIfNeeded (eStateRunning, 0); |
| } |
| else |
| { |
| // Some thread plans were given which means anything that wasn't |
| // specified should remain stopped. |
| thread_actions.SetDefaultThreadActionIfNeeded (eStateStopped, 0); |
| } |
| return procSP->Resume (thread_actions); |
| } |
| return false; |
| } |
| |
| nub_bool_t |
| DNBProcessHalt (nub_process_t pid) |
| { |
| DNBLogThreadedIf(LOG_PROCESS, "%s(pid = %4.4x)", __FUNCTION__, pid); |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->Signal (SIGSTOP); |
| return false; |
| } |
| // |
| //nub_bool_t |
| //DNBThreadResume (nub_process_t pid, nub_thread_t tid, nub_bool_t step) |
| //{ |
| // DNBLogThreadedIf(LOG_THREAD, "%s(pid = %4.4x, tid = %4.4x, step = %u)", __FUNCTION__, pid, tid, (uint32_t)step); |
| // MachProcessSP procSP; |
| // if (GetProcessSP (pid, procSP)) |
| // { |
| // return procSP->Resume(tid, step, 0); |
| // } |
| // return false; |
| //} |
| // |
| //nub_bool_t |
| //DNBThreadResumeWithSignal (nub_process_t pid, nub_thread_t tid, nub_bool_t step, int signal) |
| //{ |
| // DNBLogThreadedIf(LOG_THREAD, "%s(pid = %4.4x, tid = %4.4x, step = %u, signal = %i)", __FUNCTION__, pid, tid, (uint32_t)step, signal); |
| // MachProcessSP procSP; |
| // if (GetProcessSP (pid, procSP)) |
| // { |
| // return procSP->Resume(tid, step, signal); |
| // } |
| // return false; |
| //} |
| |
| nub_event_t |
| DNBProcessWaitForEvents (nub_process_t pid, nub_event_t event_mask, bool wait_for_set, struct timespec* timeout) |
| { |
| nub_event_t result = 0; |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| if (wait_for_set) |
| result = procSP->Events().WaitForSetEvents(event_mask, timeout); |
| else |
| result = procSP->Events().WaitForEventsToReset(event_mask, timeout); |
| } |
| return result; |
| } |
| |
| void |
| DNBProcessResetEvents (nub_process_t pid, nub_event_t event_mask) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| procSP->Events().ResetEvents(event_mask); |
| } |
| |
| // Breakpoints |
| nub_bool_t |
| DNBBreakpointSet (nub_process_t pid, nub_addr_t addr, nub_size_t size, nub_bool_t hardware) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->CreateBreakpoint(addr, size, hardware) != NULL; |
| return false; |
| } |
| |
| nub_bool_t |
| DNBBreakpointClear (nub_process_t pid, nub_addr_t addr) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->DisableBreakpoint(addr, true); |
| return false; // Failed |
| } |
| |
| |
| //---------------------------------------------------------------------- |
| // Watchpoints |
| //---------------------------------------------------------------------- |
| nub_bool_t |
| DNBWatchpointSet (nub_process_t pid, nub_addr_t addr, nub_size_t size, uint32_t watch_flags, nub_bool_t hardware) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->CreateWatchpoint(addr, size, watch_flags, hardware) != NULL; |
| return false; |
| } |
| |
| nub_bool_t |
| DNBWatchpointClear (nub_process_t pid, nub_addr_t addr) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->DisableWatchpoint(addr, true); |
| return false; // Failed |
| } |
| |
| //---------------------------------------------------------------------- |
| // Return the number of supported hardware watchpoints. |
| //---------------------------------------------------------------------- |
| uint32_t |
| DNBWatchpointGetNumSupportedHWP (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetNumSupportedHardwareWatchpoints(); |
| return 0; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Read memory in the address space of process PID. This call will take |
| // care of setting and restoring permissions and breaking up the memory |
| // read into multiple chunks as required. |
| // |
| // RETURNS: number of bytes actually read |
| //---------------------------------------------------------------------- |
| nub_size_t |
| DNBProcessMemoryRead (nub_process_t pid, nub_addr_t addr, nub_size_t size, void *buf) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->ReadMemory(addr, size, buf); |
| return 0; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Write memory to the address space of process PID. This call will take |
| // care of setting and restoring permissions and breaking up the memory |
| // write into multiple chunks as required. |
| // |
| // RETURNS: number of bytes actually written |
| //---------------------------------------------------------------------- |
| nub_size_t |
| DNBProcessMemoryWrite (nub_process_t pid, nub_addr_t addr, nub_size_t size, const void *buf) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->WriteMemory(addr, size, buf); |
| return 0; |
| } |
| |
| nub_addr_t |
| DNBProcessMemoryAllocate (nub_process_t pid, nub_size_t size, uint32_t permissions) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->Task().AllocateMemory (size, permissions); |
| return 0; |
| } |
| |
| nub_bool_t |
| DNBProcessMemoryDeallocate (nub_process_t pid, nub_addr_t addr) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->Task().DeallocateMemory (addr); |
| return 0; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Find attributes of the memory region that contains ADDR for process PID, |
| // if possible, and return a string describing those attributes. |
| // |
| // Returns 1 if we could find attributes for this region and OUTBUF can |
| // be sent to the remote debugger. |
| // |
| // Returns 0 if we couldn't find the attributes for a region of memory at |
| // that address and OUTBUF should not be sent. |
| // |
| // Returns -1 if this platform cannot look up information about memory regions |
| // or if we do not yet have a valid launched process. |
| // |
| //---------------------------------------------------------------------- |
| int |
| DNBProcessMemoryRegionInfo (nub_process_t pid, nub_addr_t addr, DNBRegionInfo *region_info) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->Task().GetMemoryRegionInfo (addr, region_info); |
| |
| return -1; |
| } |
| |
| std::string |
| DNBProcessGetProfileData (nub_process_t pid, DNBProfileDataScanType scanType) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->Task().GetProfileData(scanType); |
| |
| return std::string(""); |
| } |
| |
| nub_bool_t |
| DNBProcessSetEnableAsyncProfiling (nub_process_t pid, nub_bool_t enable, uint64_t interval_usec, DNBProfileDataScanType scan_type) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| procSP->SetEnableAsyncProfiling(enable, interval_usec, scan_type); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Formatted output that uses memory and registers from process and |
| // thread in place of arguments. |
| //---------------------------------------------------------------------- |
| nub_size_t |
| DNBPrintf (nub_process_t pid, nub_thread_t tid, nub_addr_t base_addr, FILE *file, const char *format) |
| { |
| if (file == NULL) |
| return 0; |
| enum printf_flags |
| { |
| alternate_form = (1 << 0), |
| zero_padding = (1 << 1), |
| negative_field_width = (1 << 2), |
| blank_space = (1 << 3), |
| show_sign = (1 << 4), |
| show_thousands_separator= (1 << 5), |
| }; |
| |
| enum printf_length_modifiers |
| { |
| length_mod_h = (1 << 0), |
| length_mod_hh = (1 << 1), |
| length_mod_l = (1 << 2), |
| length_mod_ll = (1 << 3), |
| length_mod_L = (1 << 4), |
| length_mod_j = (1 << 5), |
| length_mod_t = (1 << 6), |
| length_mod_z = (1 << 7), |
| length_mod_q = (1 << 8), |
| }; |
| |
| nub_addr_t addr = base_addr; |
| char *end_format = (char*)format + strlen(format); |
| char *end = NULL; // For strtoXXXX calls; |
| std::basic_string<uint8_t> buf; |
| nub_size_t total_bytes_read = 0; |
| DNBDataRef data; |
| const char *f; |
| for (f = format; *f != '\0' && f < end_format; f++) |
| { |
| char ch = *f; |
| switch (ch) |
| { |
| case '%': |
| { |
| f++; // Skip the '%' character |
| // int min_field_width = 0; |
| // int precision = 0; |
| //uint32_t flags = 0; |
| uint32_t length_modifiers = 0; |
| uint32_t byte_size = 0; |
| uint32_t actual_byte_size = 0; |
| bool is_string = false; |
| bool is_register = false; |
| DNBRegisterValue register_value; |
| int64_t register_offset = 0; |
| nub_addr_t register_addr = INVALID_NUB_ADDRESS; |
| |
| // Create the format string to use for this conversion specification |
| // so we can remove and mprintf specific flags and formatters. |
| std::string fprintf_format("%"); |
| |
| // Decode any flags |
| switch (*f) |
| { |
| case '#': fprintf_format += *f++; break; //flags |= alternate_form; break; |
| case '0': fprintf_format += *f++; break; //flags |= zero_padding; break; |
| case '-': fprintf_format += *f++; break; //flags |= negative_field_width; break; |
| case ' ': fprintf_format += *f++; break; //flags |= blank_space; break; |
| case '+': fprintf_format += *f++; break; //flags |= show_sign; break; |
| case ',': fprintf_format += *f++; break; //flags |= show_thousands_separator;break; |
| case '{': |
| case '[': |
| { |
| // We have a register name specification that can take two forms: |
| // ${regname} or ${regname+offset} |
| // The action is to read the register value and add the signed offset |
| // (if any) and use that as the value to format. |
| // $[regname] or $[regname+offset] |
| // The action is to read the register value and add the signed offset |
| // (if any) and use the result as an address to dereference. The size |
| // of what is dereferenced is specified by the actual byte size that |
| // follows the minimum field width and precision (see comments below). |
| switch (*f) |
| { |
| case '{': |
| case '[': |
| { |
| char open_scope_ch = *f; |
| f++; |
| const char *reg_name = f; |
| size_t reg_name_length = strcspn(f, "+-}]"); |
| if (reg_name_length > 0) |
| { |
| std::string register_name(reg_name, reg_name_length); |
| f += reg_name_length; |
| register_offset = strtoll(f, &end, 0); |
| if (f < end) |
| f = end; |
| if ((open_scope_ch == '{' && *f != '}') || (open_scope_ch == '[' && *f != ']')) |
| { |
| fprintf(file, "error: Invalid register format string. Valid formats are %%{regname} or %%{regname+offset}, %%[regname] or %%[regname+offset]\n"); |
| return total_bytes_read; |
| } |
| else |
| { |
| f++; |
| if (DNBThreadGetRegisterValueByName(pid, tid, REGISTER_SET_ALL, register_name.c_str(), ®ister_value)) |
| { |
| // Set the address to dereference using the register value plus the offset |
| switch (register_value.info.size) |
| { |
| default: |
| case 0: |
| fprintf (file, "error: unsupported register size of %u.\n", register_value.info.size); |
| return total_bytes_read; |
| |
| case 1: register_addr = register_value.value.uint8 + register_offset; break; |
| case 2: register_addr = register_value.value.uint16 + register_offset; break; |
| case 4: register_addr = register_value.value.uint32 + register_offset; break; |
| case 8: register_addr = register_value.value.uint64 + register_offset; break; |
| case 16: |
| if (open_scope_ch == '[') |
| { |
| fprintf (file, "error: register size (%u) too large for address.\n", register_value.info.size); |
| return total_bytes_read; |
| } |
| break; |
| } |
| |
| if (open_scope_ch == '{') |
| { |
| byte_size = register_value.info.size; |
| is_register = true; // value is in a register |
| |
| } |
| else |
| { |
| addr = register_addr; // Use register value and offset as the address |
| } |
| } |
| else |
| { |
| fprintf(file, "error: unable to read register '%s' for process %#.4x and thread %#.8" PRIx64 "\n", register_name.c_str(), pid, tid); |
| return total_bytes_read; |
| } |
| } |
| } |
| } |
| break; |
| |
| default: |
| fprintf(file, "error: %%$ must be followed by (regname + n) or [regname + n]\n"); |
| return total_bytes_read; |
| } |
| } |
| break; |
| } |
| |
| // Check for a minimum field width |
| if (isdigit(*f)) |
| { |
| //min_field_width = strtoul(f, &end, 10); |
| strtoul(f, &end, 10); |
| if (end > f) |
| { |
| fprintf_format.append(f, end - f); |
| f = end; |
| } |
| } |
| |
| |
| // Check for a precision |
| if (*f == '.') |
| { |
| f++; |
| if (isdigit(*f)) |
| { |
| fprintf_format += '.'; |
| //precision = strtoul(f, &end, 10); |
| strtoul(f, &end, 10); |
| if (end > f) |
| { |
| fprintf_format.append(f, end - f); |
| f = end; |
| } |
| } |
| } |
| |
| |
| // mprintf specific: read the optional actual byte size (abs) |
| // after the standard minimum field width (mfw) and precision (prec). |
| // Standard printf calls you can have "mfw.prec" or ".prec", but |
| // mprintf can have "mfw.prec.abs", ".prec.abs" or "..abs". This is nice |
| // for strings that may be in a fixed size buffer, but may not use all bytes |
| // in that buffer for printable characters. |
| if (*f == '.') |
| { |
| f++; |
| actual_byte_size = strtoul(f, &end, 10); |
| if (end > f) |
| { |
| byte_size = actual_byte_size; |
| f = end; |
| } |
| } |
| |
| // Decode the length modifiers |
| switch (*f) |
| { |
| case 'h': // h and hh length modifiers |
| fprintf_format += *f++; |
| length_modifiers |= length_mod_h; |
| if (*f == 'h') |
| { |
| fprintf_format += *f++; |
| length_modifiers |= length_mod_hh; |
| } |
| break; |
| |
| case 'l': // l and ll length modifiers |
| fprintf_format += *f++; |
| length_modifiers |= length_mod_l; |
| if (*f == 'h') |
| { |
| fprintf_format += *f++; |
| length_modifiers |= length_mod_ll; |
| } |
| break; |
| |
| case 'L': fprintf_format += *f++; length_modifiers |= length_mod_L; break; |
| case 'j': fprintf_format += *f++; length_modifiers |= length_mod_j; break; |
| case 't': fprintf_format += *f++; length_modifiers |= length_mod_t; break; |
| case 'z': fprintf_format += *f++; length_modifiers |= length_mod_z; break; |
| case 'q': fprintf_format += *f++; length_modifiers |= length_mod_q; break; |
| } |
| |
| // Decode the conversion specifier |
| switch (*f) |
| { |
| case '_': |
| // mprintf specific format items |
| { |
| ++f; // Skip the '_' character |
| switch (*f) |
| { |
| case 'a': // Print the current address |
| ++f; |
| fprintf_format += "ll"; |
| fprintf_format += *f; // actual format to show address with follows the 'a' ("%_ax") |
| fprintf (file, fprintf_format.c_str(), addr); |
| break; |
| case 'o': // offset from base address |
| ++f; |
| fprintf_format += "ll"; |
| fprintf_format += *f; // actual format to show address with follows the 'a' ("%_ox") |
| fprintf(file, fprintf_format.c_str(), addr - base_addr); |
| break; |
| default: |
| fprintf (file, "error: unsupported mprintf specific format character '%c'.\n", *f); |
| break; |
| } |
| continue; |
| } |
| break; |
| |
| case 'D': |
| case 'O': |
| case 'U': |
| fprintf_format += *f; |
| if (byte_size == 0) |
| byte_size = sizeof(long int); |
| break; |
| |
| case 'd': |
| case 'i': |
| case 'o': |
| case 'u': |
| case 'x': |
| case 'X': |
| fprintf_format += *f; |
| if (byte_size == 0) |
| { |
| if (length_modifiers & length_mod_hh) |
| byte_size = sizeof(char); |
| else if (length_modifiers & length_mod_h) |
| byte_size = sizeof(short); |
| else if (length_modifiers & length_mod_ll) |
| byte_size = sizeof(long long); |
| else if (length_modifiers & length_mod_l) |
| byte_size = sizeof(long); |
| else |
| byte_size = sizeof(int); |
| } |
| break; |
| |
| case 'a': |
| case 'A': |
| case 'f': |
| case 'F': |
| case 'e': |
| case 'E': |
| case 'g': |
| case 'G': |
| fprintf_format += *f; |
| if (byte_size == 0) |
| { |
| if (length_modifiers & length_mod_L) |
| byte_size = sizeof(long double); |
| else |
| byte_size = sizeof(double); |
| } |
| break; |
| |
| case 'c': |
| if ((length_modifiers & length_mod_l) == 0) |
| { |
| fprintf_format += *f; |
| if (byte_size == 0) |
| byte_size = sizeof(char); |
| break; |
| } |
| // Fall through to 'C' modifier below... |
| |
| case 'C': |
| fprintf_format += *f; |
| if (byte_size == 0) |
| byte_size = sizeof(wchar_t); |
| break; |
| |
| case 's': |
| fprintf_format += *f; |
| if (is_register || byte_size == 0) |
| is_string = 1; |
| break; |
| |
| case 'p': |
| fprintf_format += *f; |
| if (byte_size == 0) |
| byte_size = sizeof(void*); |
| break; |
| } |
| |
| if (is_string) |
| { |
| std::string mem_string; |
| const size_t string_buf_len = 4; |
| char string_buf[string_buf_len+1]; |
| char *string_buf_end = string_buf + string_buf_len; |
| string_buf[string_buf_len] = '\0'; |
| nub_size_t bytes_read; |
| nub_addr_t str_addr = is_register ? register_addr : addr; |
| while ((bytes_read = DNBProcessMemoryRead(pid, str_addr, string_buf_len, &string_buf[0])) > 0) |
| { |
| // Did we get a NULL termination character yet? |
| if (strchr(string_buf, '\0') == string_buf_end) |
| { |
| // no NULL terminator yet, append as a std::string |
| mem_string.append(string_buf, string_buf_len); |
| str_addr += string_buf_len; |
| } |
| else |
| { |
| // yep |
| break; |
| } |
| } |
| // Append as a C-string so we don't get the extra NULL |
| // characters in the temp buffer (since it was resized) |
| mem_string += string_buf; |
| size_t mem_string_len = mem_string.size() + 1; |
| fprintf(file, fprintf_format.c_str(), mem_string.c_str()); |
| if (mem_string_len > 0) |
| { |
| if (!is_register) |
| { |
| addr += mem_string_len; |
| total_bytes_read += mem_string_len; |
| } |
| } |
| else |
| return total_bytes_read; |
| } |
| else |
| if (byte_size > 0) |
| { |
| buf.resize(byte_size); |
| nub_size_t bytes_read = 0; |
| if (is_register) |
| bytes_read = register_value.info.size; |
| else |
| bytes_read = DNBProcessMemoryRead(pid, addr, buf.size(), &buf[0]); |
| if (bytes_read > 0) |
| { |
| if (!is_register) |
| total_bytes_read += bytes_read; |
| |
| if (bytes_read == byte_size) |
| { |
| switch (*f) |
| { |
| case 'd': |
| case 'i': |
| case 'o': |
| case 'u': |
| case 'X': |
| case 'x': |
| case 'a': |
| case 'A': |
| case 'f': |
| case 'F': |
| case 'e': |
| case 'E': |
| case 'g': |
| case 'G': |
| case 'p': |
| case 'c': |
| case 'C': |
| { |
| if (is_register) |
| data.SetData(®ister_value.value.v_uint8[0], register_value.info.size); |
| else |
| data.SetData(&buf[0], bytes_read); |
| DNBDataRef::offset_t data_offset = 0; |
| if (byte_size <= 4) |
| { |
| uint32_t u32 = data.GetMax32(&data_offset, byte_size); |
| // Show the actual byte width when displaying hex |
| fprintf(file, fprintf_format.c_str(), u32); |
| } |
| else if (byte_size <= 8) |
| { |
| uint64_t u64 = data.GetMax64(&data_offset, byte_size); |
| // Show the actual byte width when displaying hex |
| fprintf(file, fprintf_format.c_str(), u64); |
| } |
| else |
| { |
| fprintf(file, "error: integer size not supported, must be 8 bytes or less (%u bytes).\n", byte_size); |
| } |
| if (!is_register) |
| addr += byte_size; |
| } |
| break; |
| |
| case 's': |
| fprintf(file, fprintf_format.c_str(), buf.c_str()); |
| addr += byte_size; |
| break; |
| |
| default: |
| fprintf(file, "error: unsupported conversion specifier '%c'.\n", *f); |
| break; |
| } |
| } |
| } |
| } |
| else |
| return total_bytes_read; |
| } |
| break; |
| |
| case '\\': |
| { |
| f++; |
| switch (*f) |
| { |
| case 'e': ch = '\e'; break; |
| case 'a': ch = '\a'; break; |
| case 'b': ch = '\b'; break; |
| case 'f': ch = '\f'; break; |
| case 'n': ch = '\n'; break; |
| case 'r': ch = '\r'; break; |
| case 't': ch = '\t'; break; |
| case 'v': ch = '\v'; break; |
| case '\'': ch = '\''; break; |
| case '\\': ch = '\\'; break; |
| case '0': |
| case '1': |
| case '2': |
| case '3': |
| case '4': |
| case '5': |
| case '6': |
| case '7': |
| ch = strtoul(f, &end, 8); |
| f = end; |
| break; |
| default: |
| ch = *f; |
| break; |
| } |
| fputc(ch, file); |
| } |
| break; |
| |
| default: |
| fputc(ch, file); |
| break; |
| } |
| } |
| return total_bytes_read; |
| } |
| |
| |
| //---------------------------------------------------------------------- |
| // Get the number of threads for the specified process. |
| //---------------------------------------------------------------------- |
| nub_size_t |
| DNBProcessGetNumThreads (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetNumThreads(); |
| return 0; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Get the thread ID of the current thread. |
| //---------------------------------------------------------------------- |
| nub_thread_t |
| DNBProcessGetCurrentThread (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetCurrentThread(); |
| return 0; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Get the mach port number of the current thread. |
| //---------------------------------------------------------------------- |
| nub_thread_t |
| DNBProcessGetCurrentThreadMachPort (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetCurrentThreadMachPort(); |
| return 0; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Change the current thread. |
| //---------------------------------------------------------------------- |
| nub_thread_t |
| DNBProcessSetCurrentThread (nub_process_t pid, nub_thread_t tid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->SetCurrentThread (tid); |
| return INVALID_NUB_THREAD; |
| } |
| |
| |
| //---------------------------------------------------------------------- |
| // Dump a string describing a thread's stop reason to the specified file |
| // handle |
| //---------------------------------------------------------------------- |
| nub_bool_t |
| DNBThreadGetStopReason (nub_process_t pid, nub_thread_t tid, struct DNBThreadStopInfo *stop_info) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetThreadStoppedReason (tid, stop_info); |
| return false; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Return string description for the specified thread. |
| // |
| // RETURNS: NULL if the thread isn't valid, else a NULL terminated C |
| // string from a static buffer that must be copied prior to subsequent |
| // calls. |
| //---------------------------------------------------------------------- |
| const char * |
| DNBThreadGetInfo (nub_process_t pid, nub_thread_t tid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetThreadInfo (tid); |
| return NULL; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Get the thread ID given a thread index. |
| //---------------------------------------------------------------------- |
| nub_thread_t |
| DNBProcessGetThreadAtIndex (nub_process_t pid, size_t thread_idx) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetThreadAtIndex (thread_idx); |
| return INVALID_NUB_THREAD; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Do whatever is needed to sync the thread's register state with it's kernel values. |
| //---------------------------------------------------------------------- |
| nub_bool_t |
| DNBProcessSyncThreadState (nub_process_t pid, nub_thread_t tid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->SyncThreadState (tid); |
| return false; |
| |
| } |
| |
| nub_addr_t |
| DNBProcessGetSharedLibraryInfoAddress (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| DNBError err; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->Task().GetDYLDAllImageInfosAddress (err); |
| return INVALID_NUB_ADDRESS; |
| } |
| |
| |
| nub_bool_t |
| DNBProcessSharedLibrariesUpdated(nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| procSP->SharedLibrariesUpdated (); |
| return true; |
| } |
| return false; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Get the current shared library information for a process. Only return |
| // the shared libraries that have changed since the last shared library |
| // state changed event if only_changed is non-zero. |
| //---------------------------------------------------------------------- |
| nub_size_t |
| DNBProcessGetSharedLibraryInfo (nub_process_t pid, nub_bool_t only_changed, struct DNBExecutableImageInfo **image_infos) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->CopyImageInfos (image_infos, only_changed); |
| |
| // If we have no process, then return NULL for the shared library info |
| // and zero for shared library count |
| *image_infos = NULL; |
| return 0; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Get the register set information for a specific thread. |
| //---------------------------------------------------------------------- |
| const DNBRegisterSetInfo * |
| DNBGetRegisterSetInfo (nub_size_t *num_reg_sets) |
| { |
| return DNBArchProtocol::GetRegisterSetInfo (num_reg_sets); |
| } |
| |
| |
| //---------------------------------------------------------------------- |
| // Read a register value by register set and register index. |
| //---------------------------------------------------------------------- |
| nub_bool_t |
| DNBThreadGetRegisterValueByID (nub_process_t pid, nub_thread_t tid, uint32_t set, uint32_t reg, DNBRegisterValue *value) |
| { |
| MachProcessSP procSP; |
| ::bzero (value, sizeof(DNBRegisterValue)); |
| if (GetProcessSP (pid, procSP)) |
| { |
| if (tid != INVALID_NUB_THREAD) |
| return procSP->GetRegisterValue (tid, set, reg, value); |
| } |
| return false; |
| } |
| |
| nub_bool_t |
| DNBThreadSetRegisterValueByID (nub_process_t pid, nub_thread_t tid, uint32_t set, uint32_t reg, const DNBRegisterValue *value) |
| { |
| if (tid != INVALID_NUB_THREAD) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->SetRegisterValue (tid, set, reg, value); |
| } |
| return false; |
| } |
| |
| nub_size_t |
| DNBThreadGetRegisterContext (nub_process_t pid, nub_thread_t tid, void *buf, size_t buf_len) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| if (tid != INVALID_NUB_THREAD) |
| return procSP->GetThreadList().GetRegisterContext (tid, buf, buf_len); |
| } |
| ::bzero (buf, buf_len); |
| return 0; |
| |
| } |
| |
| nub_size_t |
| DNBThreadSetRegisterContext (nub_process_t pid, nub_thread_t tid, const void *buf, size_t buf_len) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| if (tid != INVALID_NUB_THREAD) |
| return procSP->GetThreadList().SetRegisterContext (tid, buf, buf_len); |
| } |
| return 0; |
| } |
| |
| uint32_t |
| DNBThreadSaveRegisterState (nub_process_t pid, nub_thread_t tid) |
| { |
| if (tid != INVALID_NUB_THREAD) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetThreadList().SaveRegisterState (tid); |
| } |
| return 0; |
| } |
| nub_bool_t |
| DNBThreadRestoreRegisterState (nub_process_t pid, nub_thread_t tid, uint32_t save_id) |
| { |
| if (tid != INVALID_NUB_THREAD) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetThreadList().RestoreRegisterState (tid, save_id); |
| } |
| return false; |
| } |
| |
| |
| |
| //---------------------------------------------------------------------- |
| // Read a register value by name. |
| //---------------------------------------------------------------------- |
| nub_bool_t |
| DNBThreadGetRegisterValueByName (nub_process_t pid, nub_thread_t tid, uint32_t reg_set, const char *reg_name, DNBRegisterValue *value) |
| { |
| MachProcessSP procSP; |
| ::bzero (value, sizeof(DNBRegisterValue)); |
| if (GetProcessSP (pid, procSP)) |
| { |
| const struct DNBRegisterSetInfo *set_info; |
| nub_size_t num_reg_sets = 0; |
| set_info = DNBGetRegisterSetInfo (&num_reg_sets); |
| if (set_info) |
| { |
| uint32_t set = reg_set; |
| uint32_t reg; |
| if (set == REGISTER_SET_ALL) |
| { |
| for (set = 1; set < num_reg_sets; ++set) |
| { |
| for (reg = 0; reg < set_info[set].num_registers; ++reg) |
| { |
| if (strcasecmp(reg_name, set_info[set].registers[reg].name) == 0) |
| return procSP->GetRegisterValue (tid, set, reg, value); |
| } |
| } |
| } |
| else |
| { |
| for (reg = 0; reg < set_info[set].num_registers; ++reg) |
| { |
| if (strcasecmp(reg_name, set_info[set].registers[reg].name) == 0) |
| return procSP->GetRegisterValue (tid, set, reg, value); |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| |
| //---------------------------------------------------------------------- |
| // Read a register set and register number from the register name. |
| //---------------------------------------------------------------------- |
| nub_bool_t |
| DNBGetRegisterInfoByName (const char *reg_name, DNBRegisterInfo* info) |
| { |
| const struct DNBRegisterSetInfo *set_info; |
| nub_size_t num_reg_sets = 0; |
| set_info = DNBGetRegisterSetInfo (&num_reg_sets); |
| if (set_info) |
| { |
| uint32_t set, reg; |
| for (set = 1; set < num_reg_sets; ++set) |
| { |
| for (reg = 0; reg < set_info[set].num_registers; ++reg) |
| { |
| if (strcasecmp(reg_name, set_info[set].registers[reg].name) == 0) |
| { |
| *info = set_info[set].registers[reg]; |
| return true; |
| } |
| } |
| } |
| |
| for (set = 1; set < num_reg_sets; ++set) |
| { |
| uint32_t reg; |
| for (reg = 0; reg < set_info[set].num_registers; ++reg) |
| { |
| if (set_info[set].registers[reg].alt == NULL) |
| continue; |
| |
| if (strcasecmp(reg_name, set_info[set].registers[reg].alt) == 0) |
| { |
| *info = set_info[set].registers[reg]; |
| return true; |
| } |
| } |
| } |
| } |
| |
| ::bzero (info, sizeof(DNBRegisterInfo)); |
| return false; |
| } |
| |
| |
| //---------------------------------------------------------------------- |
| // Set the name to address callback function that this nub can use |
| // for any name to address lookups that are needed. |
| //---------------------------------------------------------------------- |
| nub_bool_t |
| DNBProcessSetNameToAddressCallback (nub_process_t pid, DNBCallbackNameToAddress callback, void *baton) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| procSP->SetNameToAddressCallback (callback, baton); |
| return true; |
| } |
| return false; |
| } |
| |
| |
| //---------------------------------------------------------------------- |
| // Set the name to address callback function that this nub can use |
| // for any name to address lookups that are needed. |
| //---------------------------------------------------------------------- |
| nub_bool_t |
| DNBProcessSetSharedLibraryInfoCallback (nub_process_t pid, DNBCallbackCopyExecutableImageInfos callback, void *baton) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| procSP->SetSharedLibraryInfoCallback (callback, baton); |
| return true; |
| } |
| return false; |
| } |
| |
| nub_addr_t |
| DNBProcessLookupAddress (nub_process_t pid, const char *name, const char *shlib) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| { |
| return procSP->LookupSymbol (name, shlib); |
| } |
| return INVALID_NUB_ADDRESS; |
| } |
| |
| |
| nub_size_t |
| DNBProcessGetAvailableSTDOUT (nub_process_t pid, char *buf, nub_size_t buf_size) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetAvailableSTDOUT (buf, buf_size); |
| return 0; |
| } |
| |
| nub_size_t |
| DNBProcessGetAvailableSTDERR (nub_process_t pid, char *buf, nub_size_t buf_size) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetAvailableSTDERR (buf, buf_size); |
| return 0; |
| } |
| |
| nub_size_t |
| DNBProcessGetAvailableProfileData (nub_process_t pid, char *buf, nub_size_t buf_size) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetAsyncProfileData (buf, buf_size); |
| return 0; |
| } |
| |
| nub_size_t |
| DNBProcessGetStopCount (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->StopCount(); |
| return 0; |
| } |
| |
| uint32_t |
| DNBProcessGetCPUType (nub_process_t pid) |
| { |
| MachProcessSP procSP; |
| if (GetProcessSP (pid, procSP)) |
| return procSP->GetCPUType (); |
| return 0; |
| |
| } |
| |
| nub_bool_t |
| DNBResolveExecutablePath (const char *path, char *resolved_path, size_t resolved_path_size) |
| { |
| if (path == NULL || path[0] == '\0') |
| return false; |
| |
| char max_path[PATH_MAX]; |
| std::string result; |
| CFString::GlobPath(path, result); |
| |
| if (result.empty()) |
| result = path; |
| |
| struct stat path_stat; |
| if (::stat(path, &path_stat) == 0) |
| { |
| if ((path_stat.st_mode & S_IFMT) == S_IFDIR) |
| { |
| CFBundle bundle (path); |
| CFReleaser<CFURLRef> url(bundle.CopyExecutableURL ()); |
| if (url.get()) |
| { |
| if (::CFURLGetFileSystemRepresentation (url.get(), true, (UInt8*)resolved_path, resolved_path_size)) |
| return true; |
| } |
| } |
| } |
| |
| if (realpath(path, max_path)) |
| { |
| // Found the path relatively... |
| ::strncpy(resolved_path, max_path, resolved_path_size); |
| return strlen(resolved_path) + 1 < resolved_path_size; |
| } |
| else |
| { |
| // Not a relative path, check the PATH environment variable if the |
| const char *PATH = getenv("PATH"); |
| if (PATH) |
| { |
| const char *curr_path_start = PATH; |
| const char *curr_path_end; |
| while (curr_path_start && *curr_path_start) |
| { |
| curr_path_end = strchr(curr_path_start, ':'); |
| if (curr_path_end == NULL) |
| { |
| result.assign(curr_path_start); |
| curr_path_start = NULL; |
| } |
| else if (curr_path_end > curr_path_start) |
| { |
| size_t len = curr_path_end - curr_path_start; |
| result.assign(curr_path_start, len); |
| curr_path_start += len + 1; |
| } |
| else |
| break; |
| |
| result += '/'; |
| result += path; |
| struct stat s; |
| if (stat(result.c_str(), &s) == 0) |
| { |
| ::strncpy(resolved_path, result.c_str(), resolved_path_size); |
| return result.size() + 1 < resolved_path_size; |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| |
| void |
| DNBInitialize() |
| { |
| DNBLogThreadedIf (LOG_PROCESS, "DNBInitialize ()"); |
| #if defined (__i386__) || defined (__x86_64__) |
| DNBArchImplI386::Initialize(); |
| DNBArchImplX86_64::Initialize(); |
| #elif defined (__arm__) || defined (__arm64__) || defined (__aarch64__) |
| DNBArchMachARM::Initialize(); |
| DNBArchMachARM64::Initialize(); |
| #endif |
| } |
| |
| void |
| DNBTerminate() |
| { |
| } |
| |
| nub_bool_t |
| DNBSetArchitecture (const char *arch) |
| { |
| if (arch && arch[0]) |
| { |
| if (strcasecmp (arch, "i386") == 0) |
| return DNBArchProtocol::SetArchitecture (CPU_TYPE_I386); |
| else if ((strcasecmp (arch, "x86_64") == 0) || (strcasecmp (arch, "x86_64h") == 0)) |
| return DNBArchProtocol::SetArchitecture (CPU_TYPE_X86_64); |
| else if (strstr (arch, "arm64") == arch || strstr (arch, "armv8") == arch || strstr (arch, "aarch64") == arch) |
| return DNBArchProtocol::SetArchitecture (CPU_TYPE_ARM64); |
| else if (strstr (arch, "arm") == arch) |
| return DNBArchProtocol::SetArchitecture (CPU_TYPE_ARM); |
| } |
| return false; |
| } |
