/* Machine independent support for QNX Neutrino /proc (process file system)
- for GDB. Written by Colin Burgess at QNX Software Systems Limited.
+ for GDB. Written by Colin Burgess at QNX Software Systems Limited.
- Copyright (C) 2003, 2006, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2003-2014 Free Software Foundation, Inc.
Contributed by QNX Software Systems Ltd.
#include <sys/procfs.h>
#include <sys/neutrino.h>
#include <sys/syspage.h>
-#include "gdb_dirent.h"
+#include <dirent.h>
#include <sys/netmgr.h>
#include "exceptions.h"
-#include "gdb_string.h"
#include "gdbcore.h"
#include "inferior.h"
#include "target.h"
#include "command.h"
#include "regcache.h"
#include "solib.h"
+#include "inf-child.h"
#define NULL_PID 0
#define _DEBUG_FLAG_TRACE (_DEBUG_FLAG_TRACE_EXEC|_DEBUG_FLAG_TRACE_RD|\
_DEBUG_FLAG_TRACE_WR|_DEBUG_FLAG_TRACE_MODIFY)
-static struct target_ops procfs_ops;
-
int ctl_fd;
static void (*ofunc) ();
static procfs_run run;
-static void procfs_open (char *, int);
-
-static int procfs_can_run (void);
-
-static ptid_t procfs_wait (ptid_t, struct target_waitstatus *);
-
-static int procfs_xfer_memory (CORE_ADDR, gdb_byte *, int, int,
- struct mem_attrib *attrib,
- struct target_ops *);
-
-static void procfs_fetch_registers (struct regcache *, int);
-
-static void notice_signals (void);
-
-static void init_procfs_ops (void);
-
static ptid_t do_attach (ptid_t ptid);
-static int procfs_can_use_hw_breakpoint (int, int, int);
+static int procfs_can_use_hw_breakpoint (struct target_ops *self,
+ int, int, int);
-static int procfs_insert_hw_watchpoint (CORE_ADDR addr, int len, int type);
+static int procfs_insert_hw_watchpoint (struct target_ops *self,
+ CORE_ADDR addr, int len, int type,
+ struct expression *cond);
-static int procfs_remove_hw_watchpoint (CORE_ADDR addr, int len, int type);
+static int procfs_remove_hw_watchpoint (struct target_ops *self,
+ CORE_ADDR addr, int len, int type,
+ struct expression *cond);
-static int procfs_stopped_by_watchpoint (void);
+static int procfs_stopped_by_watchpoint (struct target_ops *ops);
-/* These two globals are only ever set in procfs_open(), but are
+/* These two globals are only ever set in procfs_open_1, but are
referenced elsewhere. 'nto_procfs_node' is a flag used to say
whether we are local, or we should get the current node descriptor
for the remote QNX node. */
return GDB_OSABI_QNXNTO;
}
-/* This is called when we call 'target procfs <arg>' from the (gdb) prompt.
- For QNX6 (nto), the only valid arg will be a QNX node string,
- eg: "/net/some_node". If arg is not a valid QNX node, we will
- default to local. */
+/* This is called when we call 'target native' or 'target procfs
+ <arg>' from the (gdb) prompt. For QNX6 (nto), the only valid arg
+ will be a QNX node string, eg: "/net/some_node". If arg is not a
+ valid QNX node, we will default to local. */
static void
-procfs_open (char *arg, int from_tty)
+procfs_open_1 (struct target_ops *ops, const char *arg, int from_tty)
{
char *nodestr;
char *endstr;
char buffer[50];
int fd, total_size;
procfs_sysinfo *sysinfo;
+ struct cleanup *cleanups;
+
+ /* Offer to kill previous inferiors before opening this target. */
+ target_preopen (from_tty);
nto_is_nto_target = procfs_is_nto_target;
safe_strerror (errno));
error (_("Invalid procfs arg"));
}
+ cleanups = make_cleanup_close (fd);
sysinfo = (void *) buffer;
if (devctl (fd, DCMD_PROC_SYSINFO, sysinfo, sizeof buffer, 0) != EOK)
{
printf_filtered ("Error getting size: %d (%s)\n", errno,
safe_strerror (errno));
- close (fd);
error (_("Devctl failed."));
}
else
{
printf_filtered ("Memory error: %d (%s)\n", errno,
safe_strerror (errno));
- close (fd);
error (_("alloca failed."));
}
else
{
printf_filtered ("Error getting sysinfo: %d (%s)\n", errno,
safe_strerror (errno));
- close (fd);
error (_("Devctl failed."));
}
else
{
if (sysinfo->type !=
nto_map_arch_to_cputype (gdbarch_bfd_arch_info
- (current_gdbarch)->arch_name))
- {
- close (fd);
- error (_("Invalid target CPU."));
- }
+ (target_gdbarch ())->arch_name))
+ error (_("Invalid target CPU."));
}
}
}
- close (fd);
+ do_cleanups (cleanups);
+
+ inf_child_open_target (ops, arg, from_tty);
printf_filtered ("Debugging using %s\n", nto_procfs_path);
}
/* Return nonzero if the thread TH is still alive. */
static int
-procfs_thread_alive (ptid_t ptid)
+procfs_thread_alive (struct target_ops *ops, ptid_t ptid)
{
pid_t tid;
+ pid_t pid;
+ procfs_status status;
+ int err;
tid = ptid_get_tid (ptid);
- if (devctl (ctl_fd, DCMD_PROC_CURTHREAD, &tid, sizeof (tid), 0) == EOK)
- return 1;
- return 0;
+ pid = ptid_get_pid (ptid);
+
+ if (kill (pid, 0) == -1)
+ return 0;
+
+ status.tid = tid;
+ if ((err = devctl (ctl_fd, DCMD_PROC_TIDSTATUS,
+ &status, sizeof (status), 0)) != EOK)
+ return 0;
+
+ /* Thread is alive or dead but not yet joined,
+ or dead and there is an alive (or dead unjoined) thread with
+ higher tid.
+
+ If the tid is not the same as requested, requested tid is dead. */
+ return (status.tid == tid) && (status.state != STATE_DEAD);
}
-void
-procfs_find_new_threads (void)
+static void
+update_thread_private_data_name (struct thread_info *new_thread,
+ const char *newname)
+{
+ int newnamelen;
+ struct private_thread_info *pti;
+
+ gdb_assert (newname != NULL);
+ gdb_assert (new_thread != NULL);
+ newnamelen = strlen (newname);
+ if (!new_thread->private)
+ {
+ new_thread->private = xmalloc (offsetof (struct private_thread_info,
+ name)
+ + newnamelen + 1);
+ memcpy (new_thread->private->name, newname, newnamelen + 1);
+ }
+ else if (strcmp (newname, new_thread->private->name) != 0)
+ {
+ /* Reallocate if neccessary. */
+ int oldnamelen = strlen (new_thread->private->name);
+
+ if (oldnamelen < newnamelen)
+ new_thread->private = xrealloc (new_thread->private,
+ offsetof (struct private_thread_info,
+ name)
+ + newnamelen + 1);
+ memcpy (new_thread->private->name, newname, newnamelen + 1);
+ }
+}
+
+static void
+update_thread_private_data (struct thread_info *new_thread,
+ pthread_t tid, int state, int flags)
+{
+ struct private_thread_info *pti;
+ procfs_info pidinfo;
+ struct _thread_name *tn;
+ procfs_threadctl tctl;
+
+#if _NTO_VERSION > 630
+ gdb_assert (new_thread != NULL);
+
+ if (devctl (ctl_fd, DCMD_PROC_INFO, &pidinfo,
+ sizeof(pidinfo), 0) != EOK)
+ return;
+
+ memset (&tctl, 0, sizeof (tctl));
+ tctl.cmd = _NTO_TCTL_NAME;
+ tn = (struct _thread_name *) (&tctl.data);
+
+ /* Fetch name for the given thread. */
+ tctl.tid = tid;
+ tn->name_buf_len = sizeof (tctl.data) - sizeof (*tn);
+ tn->new_name_len = -1; /* Getting, not setting. */
+ if (devctl (ctl_fd, DCMD_PROC_THREADCTL, &tctl, sizeof (tctl), NULL) != EOK)
+ tn->name_buf[0] = '\0';
+
+ tn->name_buf[_NTO_THREAD_NAME_MAX] = '\0';
+
+ update_thread_private_data_name (new_thread, tn->name_buf);
+
+ pti = (struct private_thread_info *) new_thread->private;
+ pti->tid = tid;
+ pti->state = state;
+ pti->flags = flags;
+#endif /* _NTO_VERSION */
+}
+
+static void
+procfs_find_new_threads (struct target_ops *ops)
{
procfs_status status;
pid_t pid;
ptid_t ptid;
+ pthread_t tid;
+ struct thread_info *new_thread;
if (ctl_fd == -1)
return;
pid = ptid_get_pid (inferior_ptid);
- for (status.tid = 1;; ++status.tid)
+ status.tid = 1;
+
+ for (tid = 1;; ++tid)
{
- if (devctl (ctl_fd, DCMD_PROC_TIDSTATUS, &status, sizeof (status), 0)
- != EOK && status.tid != 0)
+ if (status.tid == tid
+ && (devctl (ctl_fd, DCMD_PROC_TIDSTATUS, &status, sizeof (status), 0)
+ != EOK))
break;
- ptid = ptid_build (pid, 0, status.tid);
- if (!in_thread_list (ptid))
- add_thread (ptid);
+ if (status.tid != tid)
+ /* The reason why this would not be equal is that devctl might have
+ returned different tid, meaning the requested tid no longer exists
+ (e.g. thread exited). */
+ continue;
+ ptid = ptid_build (pid, 0, tid);
+ new_thread = find_thread_ptid (ptid);
+ if (!new_thread)
+ new_thread = add_thread (ptid);
+ update_thread_private_data (new_thread, tid, status.state, 0);
+ status.tid++;
}
return;
}
+static void
+do_closedir_cleanup (void *dir)
+{
+ closedir (dir);
+}
+
void
procfs_pidlist (char *args, int from_tty)
{
DIR *dp = NULL;
struct dirent *dirp = NULL;
- int fd = -1;
char buf[512];
procfs_info *pidinfo = NULL;
procfs_debuginfo *info = NULL;
pid_t num_threads = 0;
pid_t pid;
char name[512];
+ struct cleanup *cleanups;
dp = opendir (nto_procfs_path);
if (dp == NULL)
return;
}
+ cleanups = make_cleanup (do_closedir_cleanup, dp);
+
/* Start scan at first pid. */
rewinddir (dp);
do
{
+ int fd;
+ struct cleanup *inner_cleanup;
+
/* Get the right pid and procfs path for the pid. */
do
{
dirp = readdir (dp);
if (dirp == NULL)
{
- closedir (dp);
+ do_cleanups (cleanups);
return;
}
snprintf (buf, 511, "%s/%s/as", nto_procfs_path, dirp->d_name);
}
while (pid == 0);
- /* Open the procfs path. */
+ /* Open the procfs path. */
fd = open (buf, O_RDONLY);
if (fd == -1)
{
fprintf_unfiltered (gdb_stderr, "failed to open %s - %d (%s)\n",
buf, errno, safe_strerror (errno));
- closedir (dp);
+ do_cleanups (cleanups);
return;
}
+ inner_cleanup = make_cleanup_close (fd);
pidinfo = (procfs_info *) buf;
if (devctl (fd, DCMD_PROC_INFO, pidinfo, sizeof (buf), 0) != EOK)
if (status->tid != 0)
printf_filtered ("%s - %d/%d\n", name, pid, status->tid);
}
- close (fd);
+
+ do_cleanups (inner_cleanup);
}
while (dirp != NULL);
- close (fd);
- closedir (dp);
+ do_cleanups (cleanups);
return;
}
printme.text.addr);
printf_filtered ("\t\tflags=%08x\n", printme.text.flags);
printf_filtered ("\t\tdebug=%08x\n", printme.text.debug_vaddr);
- printf_filtered ("\t\toffset=%016llx\n", printme.text.offset);
+ printf_filtered ("\t\toffset=%s\n", phex (printme.text.offset, 8));
if (printme.data.size)
{
printf_filtered ("\tdata=%08x bytes @ 0x%08x\n", printme.data.size,
printme.data.addr);
printf_filtered ("\t\tflags=%08x\n", printme.data.flags);
printf_filtered ("\t\tdebug=%08x\n", printme.data.debug_vaddr);
- printf_filtered ("\t\toffset=%016llx\n", printme.data.offset);
+ printf_filtered ("\t\toffset=%s\n", phex (printme.data.offset, 8));
}
printf_filtered ("\tdev=0x%x\n", printme.dev);
printf_filtered ("\tino=0x%x\n", (unsigned int) printme.ino);
struct inferior *inf = current_inferior ();
printf_unfiltered ("\tUsing the running image of %s %s via %s.\n",
- pi->attach_flag ? "attached" : "child",
+ inf->attach_flag ? "attached" : "child",
target_pid_to_str (inferior_ptid), nto_procfs_path);
}
-/* Mark our target-struct as eligible for stray "run" and "attach" commands. */
-static int
-procfs_can_run (void)
-{
- return 1;
-}
-
/* Attach to process PID, then initialize for debugging it. */
static void
-procfs_attach (char *args, int from_tty)
+procfs_attach (struct target_ops *ops, const char *args, int from_tty)
{
char *exec_file;
int pid;
struct inferior *inf;
- if (!args)
- error_no_arg (_("process-id to attach"));
-
- pid = atoi (args);
+ pid = parse_pid_to_attach (args);
if (pid == getpid ())
error (_("Attaching GDB to itself is not a good idea..."));
gdb_flush (gdb_stdout);
}
inferior_ptid = do_attach (pid_to_ptid (pid));
- inf = add_inferior (pid);
+ inf = current_inferior ();
+ inferior_appeared (inf, pid);
inf->attach_flag = 1;
- push_target (&procfs_ops);
+ if (!target_is_pushed (ops))
+ push_target (ops);
- procfs_find_new_threads ();
+ procfs_find_new_threads (ops);
}
static void
-procfs_post_attach (pid_t pid)
+procfs_post_attach (struct target_ops *self, pid_t pid)
{
if (exec_bfd)
- solib_create_inferior_hook ();
+ solib_create_inferior_hook (0);
}
static ptid_t
struct sigevent event;
char path[PATH_MAX];
- snprintf (path, PATH_MAX - 1, "%s/%d/as", nto_procfs_path, PIDGET (ptid));
+ snprintf (path, PATH_MAX - 1, "%s/%d/as", nto_procfs_path,
+ ptid_get_pid (ptid));
ctl_fd = open (path, O_RDWR);
if (ctl_fd == -1)
error (_("Couldn't open proc file %s, error %d (%s)"), path, errno,
if (devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0) == EOK
&& status.flags & _DEBUG_FLAG_STOPPED)
- SignalKill (nto_node (), PIDGET (ptid), 0, SIGCONT, 0, 0);
+ SignalKill (nto_node (), ptid_get_pid (ptid), 0, SIGCONT, 0, 0);
nto_init_solib_absolute_prefix ();
- return ptid;
+ return ptid_build (ptid_get_pid (ptid), 0, status.tid);
}
/* Ask the user what to do when an interrupt is received. */
{
target_terminal_ours ();
- if (query ("Interrupted while waiting for the program.\n\
-Give up (and stop debugging it)? "))
+ if (query (_("Interrupted while waiting for the program.\n\
+Give up (and stop debugging it)? ")))
{
target_mourn_inferior ();
- deprecated_throw_reason (RETURN_QUIT);
+ quit ();
}
target_terminal_inferior ();
}
static ptid_t
-procfs_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
+procfs_wait (struct target_ops *ops,
+ ptid_t ptid, struct target_waitstatus *ourstatus, int options)
{
sigset_t set;
siginfo_t info;
if (ptid_equal (inferior_ptid, null_ptid))
{
ourstatus->kind = TARGET_WAITKIND_STOPPED;
- ourstatus->value.sig = TARGET_SIGNAL_0;
+ ourstatus->value.sig = GDB_SIGNAL_0;
exit_signo = 0;
return null_ptid;
}
if (status.flags & _DEBUG_FLAG_SSTEP)
{
ourstatus->kind = TARGET_WAITKIND_STOPPED;
- ourstatus->value.sig = TARGET_SIGNAL_TRAP;
+ ourstatus->value.sig = GDB_SIGNAL_TRAP;
}
/* Was it a breakpoint? */
else if (status.flags & _DEBUG_FLAG_TRACE)
{
ourstatus->kind = TARGET_WAITKIND_STOPPED;
- ourstatus->value.sig = TARGET_SIGNAL_TRAP;
+ ourstatus->value.sig = GDB_SIGNAL_TRAP;
}
else if (status.flags & _DEBUG_FLAG_ISTOP)
{
case _DEBUG_WHY_SIGNALLED:
ourstatus->kind = TARGET_WAITKIND_STOPPED;
ourstatus->value.sig =
- target_signal_from_host (status.info.si_signo);
+ gdb_signal_from_host (status.info.si_signo);
exit_signo = 0;
break;
case _DEBUG_WHY_FAULTED:
else
{
ourstatus->value.sig =
- target_signal_from_host (status.info.si_signo);
+ gdb_signal_from_host (status.info.si_signo);
exit_signo = ourstatus->value.sig;
}
break;
{
int waitval = 0;
- waitpid (PIDGET (inferior_ptid), &waitval, WNOHANG);
+ waitpid (ptid_get_pid (inferior_ptid), &waitval, WNOHANG);
if (exit_signo)
{
/* Abnormal death. */
case _DEBUG_WHY_REQUESTED:
/* We are assuming a requested stop is due to a SIGINT. */
ourstatus->kind = TARGET_WAITKIND_STOPPED;
- ourstatus->value.sig = TARGET_SIGNAL_INT;
+ ourstatus->value.sig = GDB_SIGNAL_INT;
exit_signo = 0;
break;
}
general register set and floating point registers (if supported)
and update gdb's idea of their current values. */
static void
-procfs_fetch_registers (struct regcache *regcache, int regno)
+procfs_fetch_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
union
{
nto_supply_altregset (regcache, (char *) ®.altreg);
}
-/* Copy LEN bytes to/from inferior's memory starting at MEMADDR
- from/to debugger memory starting at MYADDR. Copy from inferior
- if DOWRITE is zero or to inferior if DOWRITE is nonzero.
+/* Helper for procfs_xfer_partial that handles memory transfers.
+ Arguments are like target_xfer_partial. */
- Returns the length copied, which is either the LEN argument or
- zero. This xfer function does not do partial moves, since procfs_ops
- doesn't allow memory operations to cross below us in the target stack
- anyway. */
-static int
-procfs_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int dowrite,
- struct mem_attrib *attrib, struct target_ops *target)
+static enum target_xfer_status
+procfs_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf,
+ ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len)
{
- int nbytes = 0;
+ int nbytes;
- if (lseek (ctl_fd, (off_t) memaddr, SEEK_SET) == (off_t) memaddr)
+ if (lseek (ctl_fd, (off_t) memaddr, SEEK_SET) != (off_t) memaddr)
+ return TARGET_XFER_E_IO;
+
+ if (writebuf != NULL)
+ nbytes = write (ctl_fd, writebuf, len);
+ else
+ nbytes = read (ctl_fd, readbuf, len);
+ if (nbytes <= 0)
+ return TARGET_XFER_E_IO;
+ *xfered_len = nbytes;
+ return TARGET_XFER_OK;
+}
+
+/* Target to_xfer_partial implementation. */
+
+static enum target_xfer_status
+procfs_xfer_partial (struct target_ops *ops, enum target_object object,
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf, ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len)
+{
+ switch (object)
{
- if (dowrite)
- nbytes = write (ctl_fd, myaddr, len);
- else
- nbytes = read (ctl_fd, myaddr, len);
- if (nbytes < 0)
- nbytes = 0;
+ case TARGET_OBJECT_MEMORY:
+ return procfs_xfer_memory (readbuf, writebuf, offset, len, xfered_len);
+ default:
+ return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
+ readbuf, writebuf, offset, len);
}
- return (nbytes);
}
/* Take a program previously attached to and detaches it.
on signals, etc. We'd better not have left any breakpoints
in the program or it'll die when it hits one. */
static void
-procfs_detach (char *args, int from_tty)
+procfs_detach (struct target_ops *ops, const char *args, int from_tty)
{
int siggnal = 0;
int pid;
siggnal = atoi (args);
if (siggnal)
- SignalKill (nto_node (), PIDGET (inferior_ptid), 0, siggnal, 0, 0);
+ SignalKill (nto_node (), ptid_get_pid (inferior_ptid), 0, siggnal, 0, 0);
close (ctl_fd);
ctl_fd = -1;
inferior_ptid = null_ptid;
detach_inferior (pid);
init_thread_list ();
- unpush_target (&procfs_ops); /* Pop out of handling an inferior. */
+ inf_child_maybe_unpush_target (ops);
}
static int
}
static int
-procfs_insert_breakpoint (struct bp_target_info *bp_tgt)
+procfs_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
{
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, 0);
}
static int
-procfs_remove_breakpoint (struct bp_target_info *bp_tgt)
+procfs_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
{
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, -1);
}
static int
-procfs_insert_hw_breakpoint (struct bp_target_info *bp_tgt)
+procfs_insert_hw_breakpoint (struct target_ops *self, struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
{
return procfs_breakpoint (bp_tgt->placed_address,
_DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, 0);
}
static int
-procfs_remove_hw_breakpoint (struct bp_target_info *bp_tgt)
+procfs_remove_hw_breakpoint (struct target_ops *self,
+ struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
{
return procfs_breakpoint (bp_tgt->placed_address,
_DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, -1);
}
static void
-procfs_resume (ptid_t ptid, int step, enum target_signal signo)
+procfs_resume (struct target_ops *ops,
+ ptid_t ptid, int step, enum gdb_signal signo)
{
int signal_to_pass;
procfs_status status;
run.flags |= _DEBUG_RUN_ARM;
- sigemptyset (&run.trace);
- notice_signals ();
- signal_to_pass = target_signal_to_host (signo);
+ signal_to_pass = gdb_signal_to_host (signo);
if (signal_to_pass)
{
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
- signal_to_pass = target_signal_to_host (signo);
+ signal_to_pass = gdb_signal_to_host (signo);
if (status.why & (_DEBUG_WHY_SIGNALLED | _DEBUG_WHY_FAULTED))
{
if (signal_to_pass != status.info.si_signo)
{
- SignalKill (nto_node (), PIDGET (inferior_ptid), 0,
+ SignalKill (nto_node (), ptid_get_pid (inferior_ptid), 0,
signal_to_pass, 0, 0);
run.flags |= _DEBUG_RUN_CLRFLT | _DEBUG_RUN_CLRSIG;
}
- else /* Let it kill the program without telling us. */
+ else /* Let it kill the program without telling us. */
sigdelset (&run.trace, signal_to_pass);
}
}
errno = devctl (ctl_fd, DCMD_PROC_RUN, &run, sizeof (run), 0);
if (errno != EOK)
{
- perror ("run error!\n");
+ perror (_("run error!\n"));
return;
}
}
static void
-procfs_mourn_inferior (void)
+procfs_mourn_inferior (struct target_ops *ops)
{
if (!ptid_equal (inferior_ptid, null_ptid))
{
- SignalKill (nto_node (), PIDGET (inferior_ptid), 0, SIGKILL, 0, 0);
+ SignalKill (nto_node (), ptid_get_pid (inferior_ptid), 0, SIGKILL, 0, 0);
close (ctl_fd);
}
inferior_ptid = null_ptid;
init_thread_list ();
- unpush_target (&procfs_ops);
- generic_mourn_inferior ();
+ inf_child_mourn_inferior (ops);
}
/* This function breaks up an argument string into an argument
}
static void
-procfs_create_inferior (char *exec_file, char *allargs, char **env,
- int from_tty)
+procfs_create_inferior (struct target_ops *ops, char *exec_file,
+ char *allargs, char **env, int from_tty)
{
struct inheritance inherit;
pid_t pid;
int fd, fds[3];
sigset_t set;
const char *inferior_io_terminal = get_inferior_io_terminal ();
+ struct inferior *inf;
argv = xmalloc (((strlen (allargs) + 1) / (unsigned) 2 + 2) *
sizeof (*argv));
close (fds[2]);
inferior_ptid = do_attach (pid_to_ptid (pid));
+ procfs_find_new_threads (ops);
- add_inferior (pid);
- attach_flag = 0;
+ inf = current_inferior ();
+ inferior_appeared (inf, pid);
+ inf->attach_flag = 0;
flags = _DEBUG_FLAG_KLC; /* Kill-on-Last-Close flag. */
errn = devctl (ctl_fd, DCMD_PROC_SET_FLAG, &flags, sizeof (flags), 0);
/* warning( "Failed to set Kill-on-Last-Close flag: errno = %d(%s)\n",
errn, strerror(errn) ); */
}
- push_target (&procfs_ops);
+ if (!target_is_pushed (ops))
+ push_target (ops);
target_terminal_init ();
if (exec_bfd != NULL
|| (symfile_objfile != NULL && symfile_objfile->obfd != NULL))
- solib_create_inferior_hook ();
+ solib_create_inferior_hook (0);
}
static void
-procfs_stop (ptid_t ptid)
+procfs_stop (struct target_ops *self, ptid_t ptid)
{
devctl (ctl_fd, DCMD_PROC_STOP, NULL, 0, 0);
}
static void
-procfs_kill_inferior (void)
+procfs_kill_inferior (struct target_ops *ops)
{
target_mourn_inferior ();
}
-/* Store register REGNO, or all registers if REGNO == -1, from the contents
- of REGISTERS. */
-static void
-procfs_prepare_to_store (struct regcache *regcache)
-{
-}
-
/* Fill buf with regset and return devctl cmd to do the setting. Return
-1 if we fail to get the regset. Store size of regset in regsize. */
static int
default:
return -1;
}
- if (devctl (ctl_fd, dev_get, &buf, bufsize, regsize) != EOK)
+ if (devctl (ctl_fd, dev_get, buf, bufsize, regsize) != EOK)
return -1;
return dev_set;
}
void
-procfs_store_registers (struct regcache *regcache, int regno)
+procfs_store_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
union
{
}
}
+/* Set list of signals to be handled in the target. */
+
static void
-notice_signals (void)
+procfs_pass_signals (struct target_ops *self,
+ int numsigs, unsigned char *pass_signals)
{
int signo;
+ sigfillset (&run.trace);
+
for (signo = 1; signo < NSIG; signo++)
{
- if (signal_stop_state (target_signal_from_host (signo)) == 0
- && signal_print_state (target_signal_from_host (signo)) == 0
- && signal_pass_state (target_signal_from_host (signo)) == 1)
- sigdelset (&run.trace, signo);
- else
- sigaddset (&run.trace, signo);
+ int target_signo = gdb_signal_from_host (signo);
+ if (target_signo < numsigs && pass_signals[target_signo])
+ sigdelset (&run.trace, signo);
}
}
-/* When the user changes the state of gdb's signal handling via the
- "handle" command, this function gets called to see if any change
- in the /proc interface is required. It is also called internally
- by other /proc interface functions to initialize the state of
- the traced signal set. */
-static void
-procfs_notice_signals (ptid_t ptid)
-{
- sigemptyset (&run.trace);
- notice_signals ();
-}
-
static struct tidinfo *
procfs_thread_info (pid_t pid, short tid)
{
return NULL;
}
-char *
-procfs_pid_to_str (ptid_t ptid)
+static char *
+procfs_pid_to_str (struct target_ops *ops, ptid_t ptid)
{
static char buf[1024];
int pid, tid, n;
return buf;
}
+/* to_can_run implementation for "target procfs". Note this really
+ means "can this target be the default run target", which there can
+ be only one, and we make it be "target native" like other ports.
+ "target procfs <node>" wouldn't make sense as default run target, as
+ it needs <node>. */
+
+static int
+procfs_can_run (struct target_ops *self)
+{
+ return 0;
+}
+
+/* "target procfs". */
+static struct target_ops nto_procfs_ops;
+
+/* "target native". */
+static struct target_ops *nto_native_ops;
+
+/* to_open implementation for "target procfs". */
+
+static void
+procfs_open (const char *arg, int from_tty)
+{
+ procfs_open_1 (&nto_procfs_ops, arg, from_tty);
+}
+
+/* to_open implementation for "target native". */
+
+static void
+procfs_native_open (const char *arg, int from_tty)
+{
+ procfs_open_1 (nto_native_ops, arg, from_tty);
+}
+
+/* Create the "native" and "procfs" targets. */
+
static void
-init_procfs_ops (void)
+init_procfs_targets (void)
{
- procfs_ops.to_shortname = "procfs";
- procfs_ops.to_longname = "QNX Neutrino procfs child process";
- procfs_ops.to_doc =
- "QNX Neutrino procfs child process (started by the \"run\" command).\n\
- target procfs <node>";
- procfs_ops.to_open = procfs_open;
- procfs_ops.to_attach = procfs_attach;
- procfs_ops.to_post_attach = procfs_post_attach;
- procfs_ops.to_detach = procfs_detach;
- procfs_ops.to_resume = procfs_resume;
- procfs_ops.to_wait = procfs_wait;
- procfs_ops.to_fetch_registers = procfs_fetch_registers;
- procfs_ops.to_store_registers = procfs_store_registers;
- procfs_ops.to_prepare_to_store = procfs_prepare_to_store;
- procfs_ops.deprecated_xfer_memory = procfs_xfer_memory;
- procfs_ops.to_files_info = procfs_files_info;
- procfs_ops.to_insert_breakpoint = procfs_insert_breakpoint;
- procfs_ops.to_remove_breakpoint = procfs_remove_breakpoint;
- procfs_ops.to_can_use_hw_breakpoint = procfs_can_use_hw_breakpoint;
- procfs_ops.to_insert_hw_breakpoint = procfs_insert_hw_breakpoint;
- procfs_ops.to_remove_hw_breakpoint = procfs_remove_breakpoint;
- procfs_ops.to_insert_watchpoint = procfs_insert_hw_watchpoint;
- procfs_ops.to_remove_watchpoint = procfs_remove_hw_watchpoint;
- procfs_ops.to_stopped_by_watchpoint = procfs_stopped_by_watchpoint;
- procfs_ops.to_terminal_init = terminal_init_inferior;
- procfs_ops.to_terminal_inferior = terminal_inferior;
- procfs_ops.to_terminal_ours_for_output = terminal_ours_for_output;
- procfs_ops.to_terminal_ours = terminal_ours;
- procfs_ops.to_terminal_info = child_terminal_info;
- procfs_ops.to_kill = procfs_kill_inferior;
- procfs_ops.to_create_inferior = procfs_create_inferior;
- procfs_ops.to_mourn_inferior = procfs_mourn_inferior;
- procfs_ops.to_can_run = procfs_can_run;
- procfs_ops.to_notice_signals = procfs_notice_signals;
- procfs_ops.to_thread_alive = procfs_thread_alive;
- procfs_ops.to_find_new_threads = procfs_find_new_threads;
- procfs_ops.to_pid_to_str = procfs_pid_to_str;
- procfs_ops.to_stop = procfs_stop;
- procfs_ops.to_stratum = process_stratum;
- procfs_ops.to_has_all_memory = 1;
- procfs_ops.to_has_memory = 1;
- procfs_ops.to_has_stack = 1;
- procfs_ops.to_has_registers = 1;
- procfs_ops.to_has_execution = 1;
- procfs_ops.to_magic = OPS_MAGIC;
- procfs_ops.to_have_continuable_watchpoint = 1;
+ struct target_ops *t = inf_child_target ();
+
+ /* Leave to_shortname as "native". */
+ t->to_longname = "QNX Neutrino local process";
+ t->to_doc = "QNX Neutrino local process (started by the \"run\" command).";
+ t->to_open = procfs_native_open;
+ t->to_attach = procfs_attach;
+ t->to_post_attach = procfs_post_attach;
+ t->to_detach = procfs_detach;
+ t->to_resume = procfs_resume;
+ t->to_wait = procfs_wait;
+ t->to_fetch_registers = procfs_fetch_registers;
+ t->to_store_registers = procfs_store_registers;
+ t->to_xfer_partial = procfs_xfer_partial;
+ t->to_files_info = procfs_files_info;
+ t->to_insert_breakpoint = procfs_insert_breakpoint;
+ t->to_remove_breakpoint = procfs_remove_breakpoint;
+ t->to_can_use_hw_breakpoint = procfs_can_use_hw_breakpoint;
+ t->to_insert_hw_breakpoint = procfs_insert_hw_breakpoint;
+ t->to_remove_hw_breakpoint = procfs_remove_hw_breakpoint;
+ t->to_insert_watchpoint = procfs_insert_hw_watchpoint;
+ t->to_remove_watchpoint = procfs_remove_hw_watchpoint;
+ t->to_stopped_by_watchpoint = procfs_stopped_by_watchpoint;
+ t->to_kill = procfs_kill_inferior;
+ t->to_create_inferior = procfs_create_inferior;
+ t->to_mourn_inferior = procfs_mourn_inferior;
+ t->to_pass_signals = procfs_pass_signals;
+ t->to_thread_alive = procfs_thread_alive;
+ t->to_find_new_threads = procfs_find_new_threads;
+ t->to_pid_to_str = procfs_pid_to_str;
+ t->to_stop = procfs_stop;
+ t->to_have_continuable_watchpoint = 1;
+ t->to_extra_thread_info = nto_extra_thread_info;
+
+ nto_native_ops = t;
+
+ /* Register "target native". This is the default run target. */
+ add_target (t);
+
+ /* Register "target procfs <node>". */
+ nto_procfs_ops = *t;
+ nto_procfs_ops.to_shortname = "procfs";
+ nto_procfs_ops.to_can_run = procfs_can_run;
+ t->to_longname = "QNX Neutrino local or remote process";
+ t->to_doc = "QNX Neutrino process. target procfs <node>";
+ t->to_open = procfs_open;
+
+ add_target (&nto_procfs_ops);
}
#define OSTYPE_NTO 1
{
sigset_t set;
- init_procfs_ops ();
- add_target (&procfs_ops);
+ init_procfs_targets ();
/* We use SIGUSR1 to gain control after we block waiting for a process.
We use sigwaitevent to wait. */
sigaddset (&set, SIGUSR1);
sigprocmask (SIG_BLOCK, &set, NULL);
- /* Set up trace and fault sets, as gdb expects them. */
- sigemptyset (&run.trace);
+ /* Initially, make sure all signals are reported. */
+ sigfillset (&run.trace);
/* Stuff some information. */
nto_cpuinfo_flags = SYSPAGE_ENTRY (cpuinfo)->flags;
errno = devctl (ctl_fd, DCMD_PROC_BREAK, &brk, sizeof (brk), 0);
if (errno != EOK)
{
- perror ("Failed to set hardware watchpoint");
+ perror (_("Failed to set hardware watchpoint"));
return -1;
}
return 0;
}
static int
-procfs_can_use_hw_breakpoint (int type, int cnt, int othertype)
+procfs_can_use_hw_breakpoint (struct target_ops *self,
+ int type, int cnt, int othertype)
{
return 1;
}
static int
-procfs_remove_hw_watchpoint (CORE_ADDR addr, int len, int type)
+procfs_remove_hw_watchpoint (struct target_ops *self,
+ CORE_ADDR addr, int len, int type,
+ struct expression *cond)
{
return procfs_hw_watchpoint (addr, -1, type);
}
static int
-procfs_insert_hw_watchpoint (CORE_ADDR addr, int len, int type)
+procfs_insert_hw_watchpoint (struct target_ops *self,
+ CORE_ADDR addr, int len, int type,
+ struct expression *cond)
{
return procfs_hw_watchpoint (addr, len, type);
}
static int
-procfs_stopped_by_watchpoint (void)
+procfs_stopped_by_watchpoint (struct target_ops *ops)
{
return 0;
}