| /* Target-vector operations for controlling Unix child processes, for GDB. |
| Copyright 1990-1996, 1998, 1999 Free Software Foundation, Inc. |
| Contributed by Cygnus Support. |
| |
| ## Contains temporary hacks.. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| #include "defs.h" |
| #include "frame.h" /* required by inferior.h */ |
| #include "inferior.h" |
| #include "target.h" |
| #include "gdbcore.h" |
| #include "command.h" |
| #include "gdb_stat.h" |
| #include <signal.h> |
| #include <sys/types.h> |
| #include <fcntl.h> |
| |
| #ifdef HAVE_WAIT_H |
| # include <wait.h> |
| #else |
| # ifdef HAVE_SYS_WAIT_H |
| # include <sys/wait.h> |
| # endif |
| #endif |
| |
| /* "wait.h" fills in the gaps left by <wait.h> */ |
| #include "wait.h" |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| |
| extern struct symtab_and_line * |
| child_enable_exception_callback PARAMS ((enum exception_event_kind, int)); |
| |
| extern struct exception_event_record * |
| child_get_current_exception_event PARAMS ((void)); |
| |
| extern void _initialize_inftarg PARAMS ((void)); |
| |
| static void |
| child_prepare_to_store PARAMS ((void)); |
| |
| #ifndef CHILD_WAIT |
| static int child_wait PARAMS ((int, struct target_waitstatus *)); |
| #endif /* CHILD_WAIT */ |
| |
| #if !defined(CHILD_POST_WAIT) |
| void |
| child_post_wait PARAMS ((int, int)); |
| #endif |
| |
| static void child_open PARAMS ((char *, int)); |
| |
| static void |
| child_files_info PARAMS ((struct target_ops *)); |
| |
| static void |
| child_detach PARAMS ((char *, int)); |
| |
| static void |
| child_detach_from_process PARAMS ((int, char *, int, int)); |
| |
| static void |
| child_attach PARAMS ((char *, int)); |
| |
| static void |
| child_attach_to_process PARAMS ((char *, int, int)); |
| |
| #if !defined(CHILD_POST_ATTACH) |
| extern void child_post_attach PARAMS ((int)); |
| #endif |
| |
| static void |
| child_require_attach PARAMS ((char *, int)); |
| |
| static void |
| child_require_detach PARAMS ((int, char *, int)); |
| |
| static void |
| ptrace_me PARAMS ((void)); |
| |
| static void |
| ptrace_him PARAMS ((int)); |
| |
| static void |
| child_create_inferior PARAMS ((char *, char *, char **)); |
| |
| static void |
| child_mourn_inferior PARAMS ((void)); |
| |
| static int |
| child_can_run PARAMS ((void)); |
| |
| static void |
| child_stop PARAMS ((void)); |
| |
| #ifndef CHILD_THREAD_ALIVE |
| int child_thread_alive PARAMS ((int)); |
| #endif |
| |
| static void init_child_ops PARAMS ((void)); |
| |
| extern char **environ; |
| |
| struct target_ops child_ops; |
| |
| int child_suppress_run = 0; /* Non-zero if inftarg should pretend not to |
| be a runnable target. Used by targets |
| that can sit atop inftarg, such as HPUX |
| thread support. */ |
| |
| #ifndef CHILD_WAIT |
| |
| /*##*/ |
| /* Enable HACK for ttrace work. In |
| * infttrace.c/require_notification_of_events, |
| * this is set to 0 so that the loop in child_wait |
| * won't loop. |
| */ |
| int not_same_real_pid = 1; |
| /*##*/ |
| |
| |
| /* Wait for child to do something. Return pid of child, or -1 in case |
| of error; store status through argument pointer OURSTATUS. */ |
| |
| static int |
| child_wait (pid, ourstatus) |
| int pid; |
| struct target_waitstatus *ourstatus; |
| { |
| int save_errno; |
| int status; |
| char *execd_pathname = NULL; |
| int exit_status; |
| int related_pid; |
| int syscall_id; |
| enum target_waitkind kind; |
| |
| do { |
| set_sigint_trap(); /* Causes SIGINT to be passed on to the |
| attached process. */ |
| set_sigio_trap (); |
| |
| pid = ptrace_wait (inferior_pid, &status); |
| |
| save_errno = errno; |
| |
| clear_sigio_trap (); |
| |
| clear_sigint_trap(); |
| |
| if (pid == -1) |
| { |
| if (save_errno == EINTR) |
| continue; |
| |
| fprintf_unfiltered (gdb_stderr, "Child process unexpectedly missing: %s.\n", |
| safe_strerror (save_errno)); |
| |
| /* Claim it exited with unknown signal. */ |
| ourstatus->kind = TARGET_WAITKIND_SIGNALLED; |
| ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
| return -1; |
| } |
| |
| /* Did it exit? |
| */ |
| if (target_has_exited (pid, status, &exit_status)) |
| { |
| /* ??rehrauer: For now, ignore this. */ |
| continue; |
| } |
| |
| if (!target_thread_alive (pid)) |
| { |
| ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
| return pid; |
| } |
| |
| if (target_has_forked (pid, &related_pid) |
| && ((pid == inferior_pid) || (related_pid == inferior_pid))) |
| { |
| ourstatus->kind = TARGET_WAITKIND_FORKED; |
| ourstatus->value.related_pid = related_pid; |
| return pid; |
| } |
| |
| if (target_has_vforked (pid, &related_pid) |
| && ((pid == inferior_pid) || (related_pid == inferior_pid))) |
| { |
| ourstatus->kind = TARGET_WAITKIND_VFORKED; |
| ourstatus->value.related_pid = related_pid; |
| return pid; |
| } |
| |
| if (target_has_execd (pid, &execd_pathname)) |
| { |
| /* Are we ignoring initial exec events? (This is likely because |
| we're in the process of starting up the inferior, and another |
| (older) mechanism handles those.) If so, we'll report this |
| as a regular stop, not an exec. |
| */ |
| if (inferior_ignoring_startup_exec_events) |
| { |
| inferior_ignoring_startup_exec_events--; |
| } |
| else |
| { |
| ourstatus->kind = TARGET_WAITKIND_EXECD; |
| ourstatus->value.execd_pathname = execd_pathname; |
| return pid; |
| } |
| } |
| |
| /* All we must do with these is communicate their occurrence |
| to wait_for_inferior... |
| */ |
| if (target_has_syscall_event (pid, &kind, &syscall_id)) |
| { |
| ourstatus->kind = kind; |
| ourstatus->value.syscall_id = syscall_id; |
| return pid; |
| } |
| |
| /*## } while (pid != inferior_pid); ##*/ /* Some other child died or stopped */ |
| /* hack for thread testing */ |
| } while( (pid != inferior_pid) && not_same_real_pid ); |
| /*##*/ |
| |
| store_waitstatus (ourstatus, status); |
| return pid; |
| } |
| #endif /* CHILD_WAIT */ |
| |
| #if !defined(CHILD_POST_WAIT) |
| void |
| child_post_wait (pid, wait_status) |
| int pid; |
| int wait_status; |
| { |
| /* This version of Unix doesn't require a meaningful "post wait" |
| operation. |
| */ |
| } |
| #endif |
| |
| |
| #ifndef CHILD_THREAD_ALIVE |
| |
| /* Check to see if the given thread is alive. |
| |
| FIXME: Is kill() ever the right way to do this? I doubt it, but |
| for now we're going to try and be compatable with the old thread |
| code. */ |
| int |
| child_thread_alive (pid) |
| int pid; |
| { |
| return (kill (pid, 0) != -1); |
| } |
| |
| #endif |
| |
| static void |
| child_attach_to_process (args, from_tty, after_fork) |
| char * args; |
| int from_tty; |
| int after_fork; |
| { |
| if (!args) |
| error_no_arg ("process-id to attach"); |
| |
| #ifndef ATTACH_DETACH |
| error ("Can't attach to a process on this machine."); |
| #else |
| { |
| char *exec_file; |
| int pid; |
| char *dummy; |
| |
| dummy = args; |
| pid = strtol (args, &dummy, 0); |
| /* Some targets don't set errno on errors, grrr! */ |
| if ((pid == 0) && (args == dummy)) |
| error ("Illegal process-id: %s\n", args); |
| |
| if (pid == getpid()) /* Trying to masturbate? */ |
| error ("I refuse to debug myself!"); |
| |
| if (from_tty) |
| { |
| exec_file = (char *) get_exec_file (0); |
| |
| if (after_fork) |
| printf_unfiltered ("Attaching after fork to %s\n", |
| target_pid_to_str (pid)); |
| else if (exec_file) |
| printf_unfiltered ("Attaching to program: %s, %s\n", exec_file, |
| target_pid_to_str (pid)); |
| else |
| printf_unfiltered ("Attaching to %s\n", target_pid_to_str (pid)); |
| |
| gdb_flush (gdb_stdout); |
| } |
| |
| if (!after_fork) |
| attach (pid); |
| else |
| REQUIRE_ATTACH (pid); |
| |
| inferior_pid = pid; |
| push_target (&child_ops); |
| } |
| #endif /* ATTACH_DETACH */ |
| } |
| |
| |
| /* Attach to process PID, then initialize for debugging it. */ |
| |
| static void |
| child_attach (args, from_tty) |
| char *args; |
| int from_tty; |
| { |
| child_attach_to_process (args, from_tty, 0); |
| } |
| |
| #if !defined(CHILD_POST_ATTACH) |
| void |
| child_post_attach (pid) |
| int pid; |
| { |
| /* This version of Unix doesn't require a meaningful "post attach" |
| operation by a debugger. */ |
| } |
| #endif |
| |
| static void |
| child_require_attach (args, from_tty) |
| char *args; |
| int from_tty; |
| { |
| child_attach_to_process (args, from_tty, 1); |
| } |
| |
| static void |
| child_detach_from_process (pid, args, from_tty, after_fork) |
| int pid; |
| char * args; |
| int from_tty; |
| int after_fork; |
| { |
| #ifdef ATTACH_DETACH |
| { |
| int siggnal = 0; |
| |
| if (from_tty) |
| { |
| char *exec_file = get_exec_file (0); |
| if (exec_file == 0) |
| exec_file = ""; |
| if (after_fork) |
| printf_unfiltered ("Detaching after fork from %s\n", |
| target_pid_to_str (pid)); |
| else |
| printf_unfiltered ("Detaching from program: %s, %s\n", exec_file, |
| target_pid_to_str (pid)); |
| gdb_flush (gdb_stdout); |
| } |
| if (args) |
| siggnal = atoi (args); |
| |
| if (!after_fork) |
| detach (siggnal); |
| else |
| REQUIRE_DETACH (pid, siggnal); |
| } |
| #else |
| error ("This version of Unix does not support detaching a process."); |
| #endif |
| } |
| |
| /* Take a program previously attached to and detaches it. |
| The program resumes execution and will no longer stop |
| on signals, etc. We'd better not have left any breakpoints |
| in the program or it'll die when it hits one. For this |
| to work, it may be necessary for the process to have been |
| previously attached. It *might* work if the program was |
| started via the normal ptrace (PTRACE_TRACEME). */ |
| |
| static void |
| child_detach (args, from_tty) |
| char *args; |
| int from_tty; |
| { |
| child_detach_from_process (inferior_pid, args, from_tty, 0); |
| inferior_pid = 0; |
| unpush_target (&child_ops); |
| } |
| |
| static void |
| child_require_detach (pid, args, from_tty) |
| int pid; |
| char * args; |
| int from_tty; |
| { |
| child_detach_from_process (pid, args, from_tty, 1); |
| } |
| |
| |
| /* Get ready to modify the registers array. On machines which store |
| individual registers, this doesn't need to do anything. On machines |
| which store all the registers in one fell swoop, this makes sure |
| that registers contains all the registers from the program being |
| debugged. */ |
| |
| static void |
| child_prepare_to_store () |
| { |
| #ifdef CHILD_PREPARE_TO_STORE |
| CHILD_PREPARE_TO_STORE (); |
| #endif |
| } |
| |
| /* Print status information about what we're accessing. */ |
| |
| static void |
| child_files_info (ignore) |
| struct target_ops *ignore; |
| { |
| printf_unfiltered ("\tUsing the running image of %s %s.\n", |
| attach_flag? "attached": "child", target_pid_to_str (inferior_pid)); |
| } |
| |
| /* ARGSUSED */ |
| static void |
| child_open (arg, from_tty) |
| char *arg; |
| int from_tty; |
| { |
| error ("Use the \"run\" command to start a Unix child process."); |
| } |
| |
| /* Stub function which causes the inferior that runs it, to be ptrace-able |
| by its parent process. */ |
| |
| static void |
| ptrace_me () |
| { |
| /* "Trace me, Dr. Memory!" */ |
| call_ptrace (0, 0, (PTRACE_ARG3_TYPE) 0, 0); |
| } |
| |
| /* Stub function which causes the GDB that runs it, to start ptrace-ing |
| the child process. */ |
| |
| static void |
| ptrace_him (pid) |
| int pid; |
| { |
| push_target (&child_ops); |
| |
| /* On some targets, there must be some explicit synchronization |
| between the parent and child processes after the debugger |
| forks, and before the child execs the debuggee program. This |
| call basically gives permission for the child to exec. |
| */ |
| |
| target_acknowledge_created_inferior (pid); |
| |
| /* START_INFERIOR_TRAPS_EXPECTED is defined in inferior.h, |
| * and will be 1 or 2 depending on whether we're starting |
| * without or with a shell. |
| */ |
| startup_inferior (START_INFERIOR_TRAPS_EXPECTED); |
| |
| /* On some targets, there must be some explicit actions taken after |
| the inferior has been started up. |
| */ |
| target_post_startup_inferior (pid); |
| } |
| |
| /* Start an inferior Unix child process and sets inferior_pid to its pid. |
| EXEC_FILE is the file to run. |
| ALLARGS is a string containing the arguments to the program. |
| ENV is the environment vector to pass. Errors reported with error(). */ |
| |
| static void |
| child_create_inferior (exec_file, allargs, env) |
| char *exec_file; |
| char *allargs; |
| char **env; |
| { |
| #ifdef HPUXHPPA |
| fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him, pre_fork_inferior, NULL); |
| #else |
| fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him, NULL, NULL); |
| #endif |
| /* We are at the first instruction we care about. */ |
| /* Pedal to the metal... */ |
| proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); |
| } |
| |
| #if !defined(CHILD_POST_STARTUP_INFERIOR) |
| void |
| child_post_startup_inferior (pid) |
| int pid; |
| { |
| /* This version of Unix doesn't require a meaningful "post startup inferior" |
| operation by a debugger. |
| */ |
| } |
| #endif |
| |
| #if !defined(CHILD_ACKNOWLEDGE_CREATED_INFERIOR) |
| void |
| child_acknowledge_created_inferior (pid) |
| int pid; |
| { |
| /* This version of Unix doesn't require a meaningful "acknowledge created inferior" |
| operation by a debugger. |
| */ |
| } |
| #endif |
| |
| |
| void |
| child_clone_and_follow_inferior (child_pid, followed_child) |
| int child_pid; |
| int *followed_child; |
| { |
| clone_and_follow_inferior (child_pid, followed_child); |
| |
| /* Don't resume CHILD_PID; it's stopped where it ought to be, until |
| the decision gets made elsewhere how to continue it. |
| */ |
| } |
| |
| |
| #if !defined(CHILD_POST_FOLLOW_INFERIOR_BY_CLONE) |
| void |
| child_post_follow_inferior_by_clone () |
| { |
| /* This version of Unix doesn't require a meaningful "post follow inferior" |
| operation by a clone debugger. |
| */ |
| } |
| #endif |
| |
| #if !defined(CHILD_INSERT_FORK_CATCHPOINT) |
| int |
| child_insert_fork_catchpoint (pid) |
| int pid; |
| { |
| /* This version of Unix doesn't support notification of fork events. */ |
| return 0; |
| } |
| #endif |
| |
| #if !defined(CHILD_REMOVE_FORK_CATCHPOINT) |
| int |
| child_remove_fork_catchpoint (pid) |
| int pid; |
| { |
| /* This version of Unix doesn't support notification of fork events. */ |
| return 0; |
| } |
| #endif |
| |
| #if !defined(CHILD_INSERT_VFORK_CATCHPOINT) |
| int |
| child_insert_vfork_catchpoint (pid) |
| int pid; |
| { |
| /* This version of Unix doesn't support notification of vfork events. */ |
| return 0; |
| } |
| #endif |
| |
| #if !defined(CHILD_REMOVE_VFORK_CATCHPOINT) |
| int |
| child_remove_vfork_catchpoint (pid) |
| int pid; |
| { |
| /* This version of Unix doesn't support notification of vfork events. */ |
| return 0; |
| } |
| #endif |
| |
| #if !defined(CHILD_HAS_FORKED) |
| int |
| child_has_forked (pid, child_pid) |
| int pid; |
| int *child_pid; |
| { |
| /* This version of Unix doesn't support notification of fork events. */ |
| return 0; |
| } |
| #endif |
| |
| |
| #if !defined(CHILD_HAS_VFORKED) |
| int |
| child_has_vforked (pid, child_pid) |
| int pid; |
| int * child_pid; |
| { |
| /* This version of Unix doesn't support notification of vfork events. |
| */ |
| return 0; |
| } |
| #endif |
| |
| |
| #if !defined(CHILD_CAN_FOLLOW_VFORK_PRIOR_TO_EXEC) |
| int |
| child_can_follow_vfork_prior_to_exec () |
| { |
| /* This version of Unix doesn't support notification of vfork events. |
| However, if it did, it probably wouldn't allow vforks to be followed |
| before the following exec. |
| */ |
| return 0; |
| } |
| #endif |
| |
| |
| #if !defined(CHILD_POST_FOLLOW_VFORK) |
| void |
| child_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child) |
| int parent_pid; |
| int followed_parent; |
| int child_pid; |
| int followed_child; |
| { |
| /* This version of Unix doesn't require a meaningful "post follow vfork" |
| operation by a clone debugger. |
| */ |
| } |
| #endif |
| |
| #if !defined(CHILD_INSERT_EXEC_CATCHPOINT) |
| int |
| child_insert_exec_catchpoint (pid) |
| int pid; |
| { |
| /* This version of Unix doesn't support notification of exec events. */ |
| return 0; |
| } |
| #endif |
| |
| #if !defined(CHILD_REMOVE_EXEC_CATCHPOINT) |
| int |
| child_remove_exec_catchpoint (pid) |
| int pid; |
| { |
| /* This version of Unix doesn't support notification of exec events. */ |
| return 0; |
| } |
| #endif |
| |
| #if !defined(CHILD_HAS_EXECD) |
| int |
| child_has_execd (pid, execd_pathname) |
| int pid; |
| char ** execd_pathname; |
| { |
| /* This version of Unix doesn't support notification of exec events. |
| */ |
| return 0; |
| } |
| #endif |
| |
| |
| #if !defined(CHILD_REPORTED_EXEC_EVENTS_PER_EXEC_CALL) |
| int |
| child_reported_exec_events_per_exec_call () |
| { |
| /* This version of Unix doesn't support notification of exec events. |
| */ |
| return 1; |
| } |
| #endif |
| |
| |
| #if !defined(CHILD_HAS_SYSCALL_EVENT) |
| int |
| child_has_syscall_event (pid, kind, syscall_id) |
| int pid; |
| enum target_waitkind * kind; |
| int * syscall_id; |
| { |
| /* This version of Unix doesn't support notification of syscall events. |
| */ |
| return 0; |
| } |
| #endif |
| |
| |
| #if !defined(CHILD_HAS_EXITED) |
| int |
| child_has_exited (pid, wait_status, exit_status) |
| int pid; |
| int wait_status; |
| int * exit_status; |
| { |
| if (WIFEXITED (wait_status)) |
| { |
| *exit_status = WEXITSTATUS (wait_status); |
| return 1; |
| } |
| |
| if (WIFSIGNALED (wait_status)) |
| { |
| *exit_status = 0; /* ?? Don't know what else to say here. */ |
| return 1; |
| } |
| |
| /* ?? Do we really need to consult the event state, too? Assume the |
| wait_state alone suffices. |
| */ |
| return 0; |
| } |
| #endif |
| |
| |
| static void |
| child_mourn_inferior () |
| { |
| unpush_target (&child_ops); |
| generic_mourn_inferior (); |
| } |
| |
| static int |
| child_can_run () |
| { |
| /* This variable is controlled by modules that sit atop inftarg that may layer |
| their own process structure atop that provided here. hpux-thread.c does |
| this because of the Hpux user-mode level thread model. */ |
| |
| return !child_suppress_run; |
| } |
| |
| /* Send a SIGINT to the process group. This acts just like the user typed a |
| ^C on the controlling terminal. |
| |
| XXX - This may not be correct for all systems. Some may want to use |
| killpg() instead of kill (-pgrp). */ |
| |
| static void |
| child_stop () |
| { |
| extern pid_t inferior_process_group; |
| |
| kill (-inferior_process_group, SIGINT); |
| } |
| |
| #if !defined(CHILD_ENABLE_EXCEPTION_CALLBACK) |
| struct symtab_and_line * |
| child_enable_exception_callback (kind, enable) |
| enum exception_event_kind kind; |
| int enable; |
| { |
| return (struct symtab_and_line *) NULL; |
| } |
| #endif |
| |
| #if !defined(CHILD_GET_CURRENT_EXCEPTION_EVENT) |
| struct exception_event_record * |
| child_get_current_exception_event () |
| { |
| return (struct exception_event_record *) NULL; |
| } |
| #endif |
| |
| |
| #if !defined(CHILD_PID_TO_EXEC_FILE) |
| char * |
| child_pid_to_exec_file (pid) |
| int pid; |
| { |
| /* This version of Unix doesn't support translation of a process ID |
| to the filename of the executable file. |
| */ |
| return NULL; |
| } |
| #endif |
| |
| char * |
| child_core_file_to_sym_file (core) |
| char * core; |
| { |
| /* The target stratum for a running executable need not support |
| this operation. |
| */ |
| return NULL; |
| } |
| |
| |
| |
| static void |
| init_child_ops () |
| { |
| child_ops.to_shortname = "child"; |
| child_ops.to_longname = "Unix child process"; |
| child_ops.to_doc = "Unix child process (started by the \"run\" command)."; |
| child_ops.to_open = child_open; |
| child_ops.to_attach = child_attach; |
| child_ops.to_post_attach = child_post_attach; |
| child_ops.to_require_attach = child_require_attach; |
| child_ops.to_detach = child_detach; |
| child_ops.to_require_detach = child_require_detach; |
| child_ops.to_resume = child_resume; |
| child_ops.to_wait = child_wait; |
| child_ops.to_post_wait = child_post_wait; |
| child_ops.to_fetch_registers = fetch_inferior_registers; |
| child_ops.to_store_registers = store_inferior_registers; |
| child_ops.to_prepare_to_store = child_prepare_to_store; |
| child_ops.to_xfer_memory = child_xfer_memory; |
| child_ops.to_files_info = child_files_info; |
| child_ops.to_insert_breakpoint = memory_insert_breakpoint; |
| child_ops.to_remove_breakpoint = memory_remove_breakpoint; |
| child_ops.to_terminal_init = terminal_init_inferior; |
| child_ops.to_terminal_inferior = terminal_inferior; |
| child_ops.to_terminal_ours_for_output = terminal_ours_for_output; |
| child_ops.to_terminal_ours = terminal_ours; |
| child_ops.to_terminal_info = child_terminal_info; |
| child_ops.to_kill = kill_inferior; |
| child_ops.to_create_inferior = child_create_inferior; |
| child_ops.to_post_startup_inferior = child_post_startup_inferior; |
| child_ops.to_acknowledge_created_inferior = child_acknowledge_created_inferior; |
| child_ops.to_clone_and_follow_inferior = child_clone_and_follow_inferior; |
| child_ops.to_post_follow_inferior_by_clone = child_post_follow_inferior_by_clone; |
| child_ops.to_insert_fork_catchpoint = child_insert_fork_catchpoint; |
| child_ops.to_remove_fork_catchpoint = child_remove_fork_catchpoint; |
| child_ops.to_insert_vfork_catchpoint = child_insert_vfork_catchpoint; |
| child_ops.to_remove_vfork_catchpoint = child_remove_vfork_catchpoint; |
| child_ops.to_has_forked = child_has_forked; |
| child_ops.to_has_vforked = child_has_vforked; |
| child_ops.to_can_follow_vfork_prior_to_exec = child_can_follow_vfork_prior_to_exec; |
| child_ops.to_post_follow_vfork = child_post_follow_vfork; |
| child_ops.to_insert_exec_catchpoint = child_insert_exec_catchpoint; |
| child_ops.to_remove_exec_catchpoint = child_remove_exec_catchpoint; |
| child_ops.to_has_execd = child_has_execd; |
| child_ops.to_reported_exec_events_per_exec_call = child_reported_exec_events_per_exec_call; |
| child_ops.to_has_syscall_event = child_has_syscall_event; |
| child_ops.to_has_exited = child_has_exited; |
| child_ops.to_mourn_inferior = child_mourn_inferior; |
| child_ops.to_can_run = child_can_run; |
| child_ops.to_thread_alive = child_thread_alive; |
| child_ops.to_stop = child_stop; |
| child_ops.to_enable_exception_callback = child_enable_exception_callback; |
| child_ops.to_get_current_exception_event = child_get_current_exception_event; |
| child_ops.to_pid_to_exec_file = child_pid_to_exec_file; |
| child_ops.to_core_file_to_sym_file = child_core_file_to_sym_file; |
| child_ops.to_stratum = process_stratum; |
| child_ops.to_has_all_memory = 1; |
| child_ops.to_has_memory = 1; |
| child_ops.to_has_stack = 1; |
| child_ops.to_has_registers = 1; |
| child_ops.to_has_execution = 1; |
| child_ops.to_magic = OPS_MAGIC; |
| } |
| |
| void |
| _initialize_inftarg () |
| { |
| #ifdef HAVE_OPTIONAL_PROC_FS |
| char procname[32]; |
| int fd; |
| |
| /* If we have an optional /proc filesystem (e.g. under OSF/1), |
| don't add ptrace support if we can access the running GDB via /proc. */ |
| #ifndef PROC_NAME_FMT |
| #define PROC_NAME_FMT "/proc/%05d" |
| #endif |
| sprintf (procname, PROC_NAME_FMT, getpid ()); |
| if ((fd = open (procname, O_RDONLY)) >= 0) |
| { |
| close (fd); |
| return; |
| } |
| #endif |
| |
| init_child_ops (); |
| add_target (&child_ops); |
| } |