#include "target.h"
#include "wait.h"
#include "gdbcore.h"
-#include "ieee-float.h" /* Required by REGISTER_CONVERT_TO_XXX */
-#include "terminal.h" /* For #ifdef TIOCGPGRP and new_tty */
-
+#include "command.h"
#include <signal.h>
-#ifdef SET_STACK_LIMIT_HUGE
-#include <sys/time.h>
-#include <sys/resource.h>
-
-extern int original_stack_limit;
-#endif /* SET_STACK_LIMIT_HUGE */
-
static void
child_prepare_to_store PARAMS ((void));
+#ifndef CHILD_WAIT
static int
-child_wait PARAMS ((int *));
+child_wait PARAMS ((int, struct target_waitstatus *));
+#endif /* CHILD_WAIT */
static void
child_open PARAMS ((char *, int));
static void
child_attach PARAMS ((char *, int));
+static void
+ptrace_me PARAMS ((void));
+
+static void
+ptrace_him PARAMS ((int));
+
static void
child_create_inferior PARAMS ((char *, char *, char **));
/* Forward declaration */
extern struct target_ops child_ops;
+/* Convert host signal to our signals. */
+enum target_signal
+target_signal_from_host (hostsig)
+ int hostsig;
+{
+ /* A switch statement would make sense but would require special kludges
+ to deal with the cases where more than one signal has the same number. */
+
+ if (hostsig == 0) return TARGET_SIGNAL_0;
+
+#if defined (SIGHUP)
+ if (hostsig == SIGHUP) return TARGET_SIGNAL_HUP;
+#endif
+#if defined (SIGINT)
+ if (hostsig == SIGINT) return TARGET_SIGNAL_INT;
+#endif
+#if defined (SIGQUIT)
+ if (hostsig == SIGQUIT) return TARGET_SIGNAL_QUIT;
+#endif
+#if defined (SIGILL)
+ if (hostsig == SIGILL) return TARGET_SIGNAL_ILL;
+#endif
+#if defined (SIGTRAP)
+ if (hostsig == SIGTRAP) return TARGET_SIGNAL_TRAP;
+#endif
+#if defined (SIGABRT)
+ if (hostsig == SIGABRT) return TARGET_SIGNAL_ABRT;
+#endif
+#if defined (SIGEMT)
+ if (hostsig == SIGEMT) return TARGET_SIGNAL_EMT;
+#endif
+#if defined (SIGFPE)
+ if (hostsig == SIGFPE) return TARGET_SIGNAL_FPE;
+#endif
+#if defined (SIGKILL)
+ if (hostsig == SIGKILL) return TARGET_SIGNAL_KILL;
+#endif
+#if defined (SIGBUS)
+ if (hostsig == SIGBUS) return TARGET_SIGNAL_BUS;
+#endif
+#if defined (SIGSEGV)
+ if (hostsig == SIGSEGV) return TARGET_SIGNAL_SEGV;
+#endif
+#if defined (SIGSYS)
+ if (hostsig == SIGSYS) return TARGET_SIGNAL_SYS;
+#endif
+#if defined (SIGPIPE)
+ if (hostsig == SIGPIPE) return TARGET_SIGNAL_PIPE;
+#endif
+#if defined (SIGALRM)
+ if (hostsig == SIGALRM) return TARGET_SIGNAL_ALRM;
+#endif
+#if defined (SIGTERM)
+ if (hostsig == SIGTERM) return TARGET_SIGNAL_TERM;
+#endif
+#if defined (SIGUSR1)
+ if (hostsig == SIGUSR1) return TARGET_SIGNAL_USR1;
+#endif
+#if defined (SIGUSR2)
+ if (hostsig == SIGUSR2) return TARGET_SIGNAL_USR2;
+#endif
+#if defined (SIGCLD)
+ if (hostsig == SIGCLD) return TARGET_SIGNAL_CHLD;
+#endif
+#if defined (SIGCHLD)
+ if (hostsig == SIGCHLD) return TARGET_SIGNAL_CHLD;
+#endif
+#if defined (SIGPWR)
+ if (hostsig == SIGPWR) return TARGET_SIGNAL_PWR;
+#endif
+#if defined (SIGWINCH)
+ if (hostsig == SIGWINCH) return TARGET_SIGNAL_WINCH;
+#endif
+#if defined (SIGURG)
+ if (hostsig == SIGURG) return TARGET_SIGNAL_URG;
+#endif
+#if defined (SIGIO)
+ if (hostsig == SIGIO) return TARGET_SIGNAL_IO;
+#endif
+#if defined (SIGPOLL)
+ if (hostsig == SIGPOLL) return TARGET_SIGNAL_POLL;
+#endif
+#if defined (SIGSTOP)
+ if (hostsig == SIGSTOP) return TARGET_SIGNAL_STOP;
+#endif
+#if defined (SIGTSTP)
+ if (hostsig == SIGTSTP) return TARGET_SIGNAL_TSTP;
+#endif
+#if defined (SIGCONT)
+ if (hostsig == SIGCONT) return TARGET_SIGNAL_CONT;
+#endif
+#if defined (SIGTTIN)
+ if (hostsig == SIGTTIN) return TARGET_SIGNAL_TTIN;
+#endif
+#if defined (SIGTTOU)
+ if (hostsig == SIGTTOU) return TARGET_SIGNAL_TTOU;
+#endif
+#if defined (SIGVTALRM)
+ if (hostsig == SIGVTALRM) return TARGET_SIGNAL_VTALRM;
+#endif
+#if defined (SIGPROF)
+ if (hostsig == SIGPROF) return TARGET_SIGNAL_PROF;
+#endif
+#if defined (SIGXCPU)
+ if (hostsig == SIGXCPU) return TARGET_SIGNAL_XCPU;
+#endif
+#if defined (SIGXFSZ)
+ if (hostsig == SIGXFSZ) return TARGET_SIGNAL_XFSZ;
+#endif
+#if defined (SIGWIND)
+ if (hostsig == SIGWIND) return TARGET_SIGNAL_WIND;
+#endif
+#if defined (SIGPHONE)
+ if (hostsig == SIGPHONE) return TARGET_SIGNAL_PHONE;
+#endif
+#if defined (SIGLOST)
+ if (hostsig == SIGLOST) return TARGET_SIGNAL_LOST;
+#endif
+#if defined (SIGWAITING)
+ if (hostsig == SIGWAITING) return TARGET_SIGNAL_WAITING;
+#endif
+#if defined (SIGLWP)
+ if (hostsig == SIGLWP) return TARGET_SIGNAL_LWP;
+#endif
+#if defined (SIGDANGER)
+ if (hostsig == SIGDANGER) return TARGET_SIGNAL_DANGER;
+#endif
+#if defined (SIGGRANT)
+ if (hostsig == SIGGRANT) return TARGET_SIGNAL_GRANT;
+#endif
+#if defined (SIGRETRACT)
+ if (hostsig == SIGRETRACT) return TARGET_SIGNAL_RETRACT;
+#endif
+#if defined (SIGMSG)
+ if (hostsig == SIGMSG) return TARGET_SIGNAL_MSG;
+#endif
+#if defined (SIGSOUND)
+ if (hostsig == SIGSOUND) return TARGET_SIGNAL_SOUND;
+#endif
+#if defined (SIGSAK)
+ if (hostsig == SIGSAK) return TARGET_SIGNAL_SAK;
+#endif
+ return TARGET_SIGNAL_UNKNOWN;
+}
+
+int
+target_signal_to_host (oursig)
+ enum target_signal oursig;
+{
+ switch (oursig)
+ {
+ case TARGET_SIGNAL_0: return 0;
+
+#if defined (SIGHUP)
+ case TARGET_SIGNAL_HUP: return SIGHUP;
+#endif
+#if defined (SIGINT)
+ case TARGET_SIGNAL_INT: return SIGINT;
+#endif
+#if defined (SIGQUIT)
+ case TARGET_SIGNAL_QUIT: return SIGQUIT;
+#endif
+#if defined (SIGILL)
+ case TARGET_SIGNAL_ILL: return SIGILL;
+#endif
+#if defined (SIGTRAP)
+ case TARGET_SIGNAL_TRAP: return SIGTRAP;
+#endif
+#if defined (SIGABRT)
+ case TARGET_SIGNAL_ABRT: return SIGABRT;
+#endif
+#if defined (SIGEMT)
+ case TARGET_SIGNAL_EMT: return SIGEMT;
+#endif
+#if defined (SIGFPE)
+ case TARGET_SIGNAL_FPE: return SIGFPE;
+#endif
+#if defined (SIGKILL)
+ case TARGET_SIGNAL_KILL: return SIGKILL;
+#endif
+#if defined (SIGBUS)
+ case TARGET_SIGNAL_BUS: return SIGBUS;
+#endif
+#if defined (SIGSEGV)
+ case TARGET_SIGNAL_SEGV: return SIGSEGV;
+#endif
+#if defined (SIGSYS)
+ case TARGET_SIGNAL_SYS: return SIGSYS;
+#endif
+#if defined (SIGPIPE)
+ case TARGET_SIGNAL_PIPE: return SIGPIPE;
+#endif
+#if defined (SIGALRM)
+ case TARGET_SIGNAL_ALRM: return SIGALRM;
+#endif
+#if defined (SIGTERM)
+ case TARGET_SIGNAL_TERM: return SIGTERM;
+#endif
+#if defined (SIGUSR1)
+ case TARGET_SIGNAL_USR1: return SIGUSR1;
+#endif
+#if defined (SIGUSR2)
+ case TARGET_SIGNAL_USR2: return SIGUSR2;
+#endif
+#if defined (SIGCHLD) || defined (SIGCLD)
+ case TARGET_SIGNAL_CHLD:
+#if defined (SIGCHLD)
+ return SIGCHLD;
+#else
+ return SIGCLD;
+#endif
+#endif /* SIGCLD or SIGCHLD */
+#if defined (SIGPWR)
+ case TARGET_SIGNAL_PWR: return SIGPWR;
+#endif
+#if defined (SIGWINCH)
+ case TARGET_SIGNAL_WINCH: return SIGWINCH;
+#endif
+#if defined (SIGURG)
+ case TARGET_SIGNAL_URG: return SIGURG;
+#endif
+#if defined (SIGIO)
+ case TARGET_SIGNAL_IO: return SIGIO;
+#endif
+#if defined (SIGPOLL)
+ case TARGET_SIGNAL_POLL: return SIGPOLL;
+#endif
+#if defined (SIGSTOP)
+ case TARGET_SIGNAL_STOP: return SIGSTOP;
+#endif
+#if defined (SIGTSTP)
+ case TARGET_SIGNAL_TSTP: return SIGTSTP;
+#endif
+#if defined (SIGCONT)
+ case TARGET_SIGNAL_CONT: return SIGCONT;
+#endif
+#if defined (SIGTTIN)
+ case TARGET_SIGNAL_TTIN: return SIGTTIN;
+#endif
+#if defined (SIGTTOU)
+ case TARGET_SIGNAL_TTOU: return SIGTTOU;
+#endif
+#if defined (SIGVTALRM)
+ case TARGET_SIGNAL_VTALRM: return SIGVTALRM;
+#endif
+#if defined (SIGPROF)
+ case TARGET_SIGNAL_PROF: return SIGPROF;
+#endif
+#if defined (SIGXCPU)
+ case TARGET_SIGNAL_XCPU: return SIGXCPU;
+#endif
+#if defined (SIGXFSZ)
+ case TARGET_SIGNAL_XFSZ: return SIGXFSZ;
+#endif
+#if defined (SIGWIND)
+ case TARGET_SIGNAL_WIND: return SIGWIND;
+#endif
+#if defined (SIGPHONE)
+ case TARGET_SIGNAL_PHONE: return SIGPHONE;
+#endif
+#if defined (SIGLOST)
+ case TARGET_SIGNAL_LOST: return SIGLOST;
+#endif
+#if defined (SIGWAITING)
+ case TARGET_SIGNAL_WAITING: return SIGWAITING;
+#endif
+#if defined (SIGLWP)
+ case TARGET_SIGNAL_LWP: return SIGLWP;
+#endif
+#if defined (SIGDANGER)
+ case TARGET_SIGNAL_DANGER: return SIGDANGER;
+#endif
+#if defined (SIGGRANT)
+ case TARGET_SIGNAL_GRANT: return SIGGRANT;
+#endif
+#if defined (SIGRETRACT)
+ case TARGET_SIGNAL_RETRACT: return SIGRETRACT;
+#endif
+#if defined (SIGMSG)
+ case TARGET_SIGNAL_MSG: return SIGMSG;
+#endif
+#if defined (SIGSOUND)
+ case TARGET_SIGNAL_SOUND: return SIGSOUND;
+#endif
+#if defined (SIGSAK)
+ case TARGET_SIGNAL_SAK: return SIGSAK;
+#endif
+ default:
+ /* The user might be trying to do "signal SIGSAK" where this system
+ doesn't have SIGSAK. */
+ warning ("Signal %s does not exist on this system.\n",
+ target_signal_to_name (oursig));
+ return 0;
+ }
+}
+
+/* Helper function for child_wait and the Lynx derivatives of child_wait.
+ HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
+ translation of that in OURSTATUS. */
+void
+store_waitstatus (ourstatus, hoststatus)
+ struct target_waitstatus *ourstatus;
+ int hoststatus;
+{
+ if (WIFEXITED (hoststatus))
+ {
+ ourstatus->kind = TARGET_WAITKIND_EXITED;
+ ourstatus->value.integer = WEXITSTATUS (hoststatus);
+ }
+ else if (!WIFSTOPPED (hoststatus))
+ {
+ ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
+ ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus));
+ }
+ else
+ {
+ ourstatus->kind = TARGET_WAITKIND_STOPPED;
+ ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus));
+ }
+}
+
+#ifndef CHILD_WAIT
+
/* Wait for child to do something. Return pid of child, or -1 in case
- of error; store status through argument pointer STATUS. */
+ of error; store status through argument pointer OURSTATUS. */
static int
-child_wait (status)
- int *status;
+child_wait (pid, ourstatus)
+ int pid;
+ struct target_waitstatus *ourstatus;
{
- int pid;
+ int save_errno;
+ int status;
do {
-#ifdef USE_PROC_FS
- pid = proc_wait (status);
-#else
- pid = wait (status);
-#endif
- if (pid == -1) /* No more children to wait for */
+ if (attach_flag)
+ set_sigint_trap(); /* Causes SIGINT to be passed on to the
+ attached process. */
+ pid = wait (&status);
+ save_errno = errno;
+
+ if (attach_flag)
+ clear_sigint_trap();
+
+ if (pid == -1)
{
- fprintf (stderr, "Child process unexpectedly missing.\n");
- *status = 42; /* Claim it exited with signal 42 */
+ 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;
}
} while (pid != inferior_pid); /* Some other child died or stopped */
+ store_waitstatus (ourstatus, status);
return pid;
}
-
+#endif /* CHILD_WAIT */
/* Attach to process PID, then initialize for debugging it. */
char *args;
int from_tty;
{
- char *exec_file;
- int pid;
-
if (!args)
error_no_arg ("process-id to attach");
#ifndef ATTACH_DETACH
error ("Can't attach to a process on this machine.");
#else
- pid = atoi (args);
+ {
+ char *exec_file;
+ int pid;
- if (pid == getpid()) /* Trying to masturbate? */
- error ("I refuse to debug myself!");
+ pid = atoi (args);
- if (from_tty)
- {
- exec_file = (char *) get_exec_file (0);
+ if (pid == getpid()) /* Trying to masturbate? */
+ error ("I refuse to debug myself!");
- if (exec_file)
- printf ("Attaching program `%s', pid %d\n", exec_file, pid);
- else
- printf ("Attaching pid %d\n", pid);
+ if (from_tty)
+ {
+ exec_file = (char *) get_exec_file (0);
- fflush (stdout);
- }
+ 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));
- attach (pid);
- inferior_pid = pid;
- push_target (&child_ops);
+ gdb_flush (gdb_stdout);
+ }
+
+ attach (pid);
+ inferior_pid = pid;
+ push_target (&child_ops);
+ }
#endif /* ATTACH_DETACH */
}
char *args;
int from_tty;
{
- int siggnal = 0;
-
#ifdef ATTACH_DETACH
- if (from_tty)
- {
- char *exec_file = get_exec_file (0);
- if (exec_file == 0)
- exec_file = "";
- printf ("Detaching program: %s pid %d\n",
- exec_file, inferior_pid);
- fflush (stdout);
- }
- if (args)
- siggnal = atoi (args);
-
- detach (siggnal);
- inferior_pid = 0;
- unpush_target (&child_ops); /* Pop out of handling an inferior */
+ {
+ int siggnal = 0;
+
+ if (from_tty)
+ {
+ char *exec_file = get_exec_file (0);
+ if (exec_file == 0)
+ exec_file = "";
+ printf_unfiltered ("Detaching from program: %s %s\n", exec_file,
+ target_pid_to_str (inferior_pid));
+ gdb_flush (gdb_stdout);
+ }
+ if (args)
+ siggnal = atoi (args);
+
+ detach (siggnal);
+ inferior_pid = 0;
+ unpush_target (&child_ops);
+ }
#else
- error ("This version of Unix does not support detaching a process.");
+ error ("This version of Unix does not support detaching a process.");
#endif
}
child_files_info (ignore)
struct target_ops *ignore;
{
- printf ("\tUsing the running image of %s process %d.\n",
- attach_flag? "attached": "child", inferior_pid);
+ printf_unfiltered ("\tUsing the running image of %s %s.\n",
+ attach_flag? "attached": "child", target_pid_to_str (inferior_pid));
}
/* ARGSUSED */
error ("Use the \"run\" command to start a Unix child process.");
}
-/* 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(). */
-
-#ifndef SHELL_FILE
-#define SHELL_FILE "/bin/sh"
-#endif
+/* Stub function which causes the inferior that runs it, to be ptrace-able
+ by its parent process. */
static void
-child_create_inferior (exec_file, allargs, env)
- char *exec_file;
- char *allargs;
- char **env;
+ptrace_me ()
{
- int pid;
- char *shell_command;
- char *shell_file;
- static char default_shell_file[] = SHELL_FILE;
- int len;
- int pending_execs;
- /* Set debug_fork then attach to the child while it sleeps, to debug. */
- static int debug_fork = 0;
- /* This is set to the result of setpgrp, which if vforked, will be visible
- to you in the parent process. It's only used by humans for debugging. */
- static int debug_setpgrp = 657473;
- char **save_our_env;
-
- /* If no exec file handed to us, get it from the exec-file command -- with
- a good, common error message if none is specified. */
- if (exec_file == 0)
- exec_file = get_exec_file(1);
-
- /* The user might want tilde-expansion, and in general probably wants
- the program to behave the same way as if run from
- his/her favorite shell. So we let the shell run it for us.
- FIXME, this should probably search the local environment (as
- modified by the setenv command), not the env gdb inherited. */
- shell_file = getenv ("SHELL");
- if (shell_file == NULL)
- shell_file = default_shell_file;
-
- len = 5 + strlen (exec_file) + 1 + strlen (allargs) + 1 + /*slop*/ 10;
- /* If desired, concat something onto the front of ALLARGS.
- SHELL_COMMAND is the result. */
-#ifdef SHELL_COMMAND_CONCAT
- shell_command = (char *) alloca (strlen (SHELL_COMMAND_CONCAT) + len);
- strcpy (shell_command, SHELL_COMMAND_CONCAT);
-#else
- shell_command = (char *) alloca (len);
- shell_command[0] = '\0';
-#endif
- strcat (shell_command, "exec ");
- strcat (shell_command, exec_file);
- strcat (shell_command, " ");
- strcat (shell_command, allargs);
-
- /* exec is said to fail if the executable is open. */
- close_exec_file ();
-
- /* Retain a copy of our environment variables, since the child will
- replace the value of environ and if we're vforked, we have to
- restore it. */
- save_our_env = environ;
-
- /* Tell the terminal handling subsystem what tty we plan to run on;
- it will just record the information for later. */
-
- new_tty_prefork (inferior_io_terminal);
-
- /* It is generally good practice to flush any possible pending stdio
- output prior to doing a fork, to avoid the possibility of both the
- parent and child flushing the same data after the fork. */
-
- fflush (stdout);
- fflush (stderr);
-
-#if defined(USG) && !defined(HAVE_VFORK)
- pid = fork ();
-#else
- if (debug_fork)
- pid = fork ();
- else
- pid = vfork ();
-#endif
-
- if (pid < 0)
- perror_with_name ("vfork");
-
- if (pid == 0)
- {
- if (debug_fork)
- sleep (debug_fork);
-
-#ifdef TIOCGPGRP
- /* Run inferior in a separate process group. */
-#ifdef NEED_POSIX_SETPGID
- debug_setpgrp = setpgid (0, 0);
-#else
-#if defined(USG) && !defined(SETPGRP_ARGS)
- debug_setpgrp = setpgrp ();
-#else
- debug_setpgrp = setpgrp (getpid (), getpid ());
-#endif /* USG */
-#endif /* NEED_POSIX_SETPGID */
- if (debug_setpgrp == -1)
- perror("setpgrp failed in child");
-#endif /* TIOCGPGRP */
-
-#ifdef SET_STACK_LIMIT_HUGE
- /* Reset the stack limit back to what it was. */
- {
- struct rlimit rlim;
-
- getrlimit (RLIMIT_STACK, &rlim);
- rlim.rlim_cur = original_stack_limit;
- setrlimit (RLIMIT_STACK, &rlim);
- }
-#endif /* SET_STACK_LIMIT_HUGE */
-
- /* Ask the tty subsystem to switch to the one we specified earlier
- (or to share the current terminal, if none was specified). */
-
- new_tty ();
-
- /* Changing the signal handlers for the inferior after
- a vfork can also change them for the superior, so we don't mess
- with signals here. See comments in
- initialize_signals for how we get the right signal handlers
- for the inferior. */
-
-#ifdef USE_PROC_FS
- /* Use SVR4 /proc interface */
- proc_set_exec_trap ();
-#else
- /* "Trace me, Dr. Memory!" */
- call_ptrace (0, 0, (PTRACE_ARG3_TYPE) 0, 0);
-#endif
-
- /* There is no execlpe call, so we have to set the environment
- for our child in the global variable. If we've vforked, this
- clobbers the parent, but environ is restored a few lines down
- in the parent. By the way, yes we do need to look down the
- path to find $SHELL. Rich Pixley says so, and I agree. */
- environ = env;
- execlp (shell_file, shell_file, "-c", shell_command, (char *)0);
-
- fprintf (stderr, "Cannot exec %s: %s.\n", shell_file,
- safe_strerror (errno));
- fflush (stderr);
- _exit (0177);
- }
+ /* "Trace me, Dr. Memory!" */
+ call_ptrace (0, 0, (PTRACE_ARG3_TYPE) 0, 0);
+}
- /* Restore our environment in case a vforked child clob'd it. */
- environ = save_our_env;
+/* Stub function which causes the GDB that runs it, to start ptrace-ing
+ the child process. */
- /* Now that we have a child process, make it our target. */
+static void
+ptrace_him (pid)
+ int pid;
+{
push_target (&child_ops);
-#ifdef CREATE_INFERIOR_HOOK
- CREATE_INFERIOR_HOOK (pid);
-#endif
-
-/* The process was started by the fork that created it,
- but it will have stopped one instruction after execing the shell.
- Here we must get it up to actual execution of the real program. */
-
- inferior_pid = pid; /* Needed for wait_for_inferior stuff below */
-
- clear_proceed_status ();
-
- /* We will get a trace trap after one instruction.
- Continue it automatically. Eventually (after shell does an exec)
- it will get another trace trap. Then insert breakpoints and continue. */
-
#ifdef START_INFERIOR_TRAPS_EXPECTED
- pending_execs = START_INFERIOR_TRAPS_EXPECTED;
+ startup_inferior (START_INFERIOR_TRAPS_EXPECTED);
#else
- pending_execs = 2;
+ /* One trap to exec the shell, one to exec the program being debugged. */
+ startup_inferior (2);
#endif
+}
- init_wait_for_inferior ();
-
- /* Set up the "saved terminal modes" of the inferior
- based on what modes we are starting it with. */
- target_terminal_init ();
-
- /* Install inferior's terminal modes. */
- target_terminal_inferior ();
-
- while (1)
- {
- stop_soon_quietly = 1; /* Make wait_for_inferior be quiet */
- wait_for_inferior ();
- if (stop_signal != SIGTRAP)
- {
- /* Let shell child handle its own signals in its own way */
- /* FIXME, what if child has exit()ed? Must exit loop somehow */
- resume (0, stop_signal);
- }
- else
- {
- /* We handle SIGTRAP, however; it means child did an exec. */
- if (0 == --pending_execs)
- break;
- resume (0, 0); /* Just make it go on */
- }
- }
- stop_soon_quietly = 0;
-
- /* We are now in the child process of interest, having exec'd the
- correct program, and are poised at the first instruction of the
- new program. */
-#ifdef SOLIB_CREATE_INFERIOR_HOOK
- SOLIB_CREATE_INFERIOR_HOOK (pid);
-#endif
+/* 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(). */
- /* Pedal to the metal. Away we go. */
- proceed ((CORE_ADDR) -1, 0, 0);
+static void
+child_create_inferior (exec_file, allargs, env)
+ char *exec_file;
+ char *allargs;
+ char **env;
+{
+ fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him);
+ /* We are at the first instruction we care about. */
+ /* Pedal to the metal... */
+ proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0);
}
static void
child_create_inferior, /* to_create_inferior */
child_mourn_inferior, /* to_mourn_inferior */
child_can_run, /* to_can_run */
+ 0, /* to_notice_signals */
process_stratum, /* to_stratum */
0, /* to_next */
1, /* to_has_all_memory */
projects / binutils.git / blobdiff