/* 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 2003 Free Software Foundation, Inc.
+ Copyright (C) 2003-2019 Free Software Foundation, Inc.
Contributed by QNX Software Systems Ltd.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include <sys/procfs.h>
#include <sys/neutrino.h>
#include <sys/syspage.h>
-#include "gdb_dirent.h"
+#include <dirent.h>
#include <sys/netmgr.h>
+#include <sys/auxv.h>
-#include "gdb_string.h"
#include "gdbcore.h"
#include "inferior.h"
#include "target.h"
#include "nto-tdep.h"
#include "command.h"
#include "regcache.h"
+#include "solib.h"
+#include "inf-child.h"
+#include "common/filestuff.h"
+#include "common/scoped_fd.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 sighandler_t ofunc;
static procfs_run run;
-static void procfs_open (char *, int);
+/* Create the "native" and "procfs" targets. */
-static int procfs_can_run (void);
+struct nto_procfs_target : public inf_child_target
+{
+ void open (const char *arg, int from_tty) override;
-static ptid_t procfs_wait (ptid_t, struct target_waitstatus *);
+ void attach (const char *, int) override = 0;
-static int procfs_xfer_memory (CORE_ADDR, char *, int, int,
- struct mem_attrib *attrib,
- struct target_ops *);
+ void post_attach (int);
-static void procfs_fetch_registers (int);
+ void detach (inferior *, int) override;
-static void notice_signals (void);
+ void resume (ptid_t, int, enum gdb_signal) override;
-static void init_procfs_ops (void);
+ ptid_t wait (ptid_t, struct target_waitstatus *, int) override;
-static ptid_t do_attach (ptid_t ptid);
+ void fetch_registers (struct regcache *, int) override;
+ void store_registers (struct regcache *, int) override;
+
+ enum target_xfer_status xfer_partial (enum target_object object,
+ const char *annex,
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len) override;
+
+ void files_info () override;
+
+ int insert_breakpoint (struct gdbarch *, struct bp_target_info *) override;
+
+ int remove_breakpoint (struct gdbarch *, struct bp_target_info *,
+ enum remove_bp_reason) override;
+
+ int can_use_hw_breakpoint (enum bptype, int, int) override;
+
+ int insert_hw_breakpoint (struct gdbarch *, struct bp_target_info *) override;
+
+ int remove_hw_breakpoint (struct gdbarch *, struct bp_target_info *) override;
+
+ int insert_watchpoint (CORE_ADDR, int, enum target_hw_bp_type,
+ struct expression *) override;
+
+ int remove_watchpoint (CORE_ADDR, int, enum target_hw_bp_type,
+ struct expression *) override;
-static int procfs_can_use_hw_breakpoint (int, int, int);
+ bool stopped_by_watchpoint () override;
-static int procfs_insert_hw_breakpoint (CORE_ADDR, char *);
+ void kill () override;
-static int procfs_remove_hw_breakpoint (CORE_ADDR addr, char *);
+ void create_inferior (const char *, const std::string &,
+ char **, int) override;
-static int procfs_insert_hw_watchpoint (CORE_ADDR addr, int len, int type);
+ void mourn_inferior () override;
+
+ void pass_signals (gdb::array_view<const unsigned char>) override;
+
+ bool thread_alive (ptid_t ptid) override;
+
+ void update_thread_list () override;
+
+ const char *pid_to_str (ptid_t) override;
+
+ void interrupt () override;
+
+ const char *extra_thread_info (struct thread_info *) override;
+
+ char *pid_to_exec_file (int pid) override;
+};
+
+/* For "target native". */
+
+static const target_info nto_native_target_info = {
+ "native",
+ N_("QNX Neutrino local process"),
+ N_("QNX Neutrino local process (started by the \"run\" command).")
+};
+
+class nto_procfs_target_native final : public nto_procfs_target
+{
+ const target_info &info () const override
+ { return nto_native_target_info; }
+};
-static int procfs_remove_hw_watchpoint (CORE_ADDR addr, int len, int type);
+/* For "target procfs <node>". */
-static int procfs_stopped_by_watchpoint (void);
+static const target_info nto_procfs_target_info = {
+ "procfs",
+ N_("QNX Neutrino local or remote process"),
+ N_("QNX Neutrino process. target procfs NODE")
+};
-/* These two globals are only ever set in procfs_open(), but are
+struct nto_procfs_target_procfs final : public nto_procfs_target
+{
+ const target_info &info () const override
+ { return nto_procfs_target_info; }
+};
+
+static ptid_t do_attach (ptid_t ptid);
+
+/* 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. */
-static char nto_procfs_path[PATH_MAX] = { "/proc" };
+static char *nodestr;
static unsigned nto_procfs_node = ND_LOCAL_NODE;
/* Return the current QNX Node, or error out. This is a simple
{
unsigned node;
- if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0)
+ if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0
+ || nodestr == NULL)
return ND_LOCAL_NODE;
- node = netmgr_strtond (nto_procfs_path, 0);
+ node = netmgr_strtond (nodestr, 0);
if (node == -1)
- error ("Lost the QNX node. Debug session probably over.");
+ error (_("Lost the QNX node. Debug session probably over."));
return (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. */
-static void
-procfs_open (char *arg, int from_tty)
+/* 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. */
+void
+nto_procfs_target::open (const char *arg, int from_tty)
{
- char *nodestr;
char *endstr;
char buffer[50];
- int fd, total_size;
+ int total_size;
procfs_sysinfo *sysinfo;
+ char nto_procfs_path[PATH_MAX];
+
+ /* Offer to kill previous inferiors before opening this target. */
+ target_preopen (from_tty);
nto_is_nto_target = procfs_is_nto_target;
/* Set the default node used for spawning to this one,
and only override it if there is a valid arg. */
- nto_procfs_node = ND_LOCAL_NODE;
- nodestr = arg ? xstrdup (arg) : arg;
+ xfree (nodestr);
+ nodestr = NULL;
- init_thread_list ();
+ nto_procfs_node = ND_LOCAL_NODE;
+ nodestr = (arg != NULL) ? xstrdup (arg) : NULL;
if (nodestr)
{
*endstr = 0;
}
}
- snprintf (nto_procfs_path, PATH_MAX - 1, "%s%s", nodestr ? nodestr : "",
- "/proc");
- if (nodestr)
- xfree (nodestr);
+ snprintf (nto_procfs_path, PATH_MAX - 1, "%s%s",
+ (nodestr != NULL) ? nodestr : "", "/proc");
- fd = open (nto_procfs_path, O_RDONLY);
- if (fd == -1)
+ scoped_fd fd (open (nto_procfs_path, O_RDONLY));
+ if (fd.get () == -1)
{
printf_filtered ("Error opening %s : %d (%s)\n", nto_procfs_path, errno,
safe_strerror (errno));
- error ("Invalid procfs arg");
+ error (_("Invalid procfs arg"));
}
sysinfo = (void *) buffer;
- if (devctl (fd, DCMD_PROC_SYSINFO, sysinfo, sizeof buffer, 0) != EOK)
+ if (devctl (fd.get (), 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.");
+ error (_("Devctl failed."));
}
else
{
total_size = sysinfo->total_size;
sysinfo = alloca (total_size);
- if (!sysinfo)
+ if (sysinfo == NULL)
{
printf_filtered ("Memory error: %d (%s)\n", errno,
safe_strerror (errno));
- close (fd);
- error ("alloca failed.");
+ error (_("alloca failed."));
}
else
{
- if (devctl (fd, DCMD_PROC_SYSINFO, sysinfo, total_size, 0) != EOK)
+ if (devctl (fd.get (), DCMD_PROC_SYSINFO, sysinfo, total_size, 0)
+ != EOK)
{
printf_filtered ("Error getting sysinfo: %d (%s)\n", errno,
safe_strerror (errno));
- close (fd);
- error ("Devctl failed.");
+ error (_("Devctl failed."));
}
else
{
if (sysinfo->type !=
- nto_map_arch_to_cputype (TARGET_ARCHITECTURE->arch_name))
- {
- close (fd);
- error ("Invalid target CPU.");
- }
+ nto_map_arch_to_cputype (gdbarch_bfd_arch_info
+ (target_gdbarch ())->arch_name))
+ error (_("Invalid target CPU."));
}
}
}
- close (fd);
+
+ inf_child_target::open (arg, from_tty);
printf_filtered ("Debugging using %s\n", nto_procfs_path);
}
{
pid_t tid;
- tid = ptid_get_tid (ptid);
+ tid = ptid.tid ();
devctl (ctl_fd, DCMD_PROC_CURTHREAD, &tid, sizeof (tid), 0);
}
-/* Return nonzero if the thread TH is still alive. */
-static int
-procfs_thread_alive (ptid_t ptid)
+/* Return true if the thread TH is still alive. */
+
+bool
+nto_procfs_target::thread_alive (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;
+ tid = ptid.tid ();
+ pid = ptid.pid ();
+
+ if (kill (pid, 0) == -1)
+ return false;
+
+ status.tid = tid;
+ if ((err = devctl (ctl_fd, DCMD_PROC_TIDSTATUS,
+ &status, sizeof (status), 0)) != EOK)
+ return false;
+
+ /* 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);
+}
+
+static void
+update_thread_private_data_name (struct thread_info *new_thread,
+ const char *newname)
+{
+ nto_thread_info *pti = get_nto_thread_info (new_thread);
+
+ gdb_assert (newname != NULL);
+ gdb_assert (new_thread != NULL);
+
+ if (pti)
+ {
+ pti = new nto_thread_info;
+ new_thread->priv.reset (pti);
+ }
+
+ pti->name = newname;
+}
+
+static void
+update_thread_private_data (struct thread_info *new_thread,
+ pthread_t tid, int state, int flags)
+{
+ 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);
+
+ nto_thread_info *pti = get_nto_thread_info (new_thread);
+ pti->tid = tid;
+ pti->state = state;
+ pti->flags = flags;
+#endif /* _NTO_VERSION */
}
void
-procfs_find_new_threads (void)
+nto_procfs_target::update_thread_list ()
{
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);
+ prune_threads ();
+
+ pid = inferior_ptid.pid ();
- 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_t (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;
}
-void
-procfs_pidlist (char *args, int from_tty)
+static void
+procfs_pidlist (const char *args, int from_tty)
{
- DIR *dp = NULL;
struct dirent *dirp = NULL;
- int fd = -1;
- char buf[512];
+ char buf[PATH_MAX];
procfs_info *pidinfo = NULL;
procfs_debuginfo *info = NULL;
procfs_status *status = NULL;
pid_t num_threads = 0;
pid_t pid;
char name[512];
+ char procfs_dir[PATH_MAX];
+
+ snprintf (procfs_dir, sizeof (procfs_dir), "%s%s",
+ (nodestr != NULL) ? nodestr : "", "/proc");
- dp = opendir (nto_procfs_path);
+ gdb_dir_up dp (opendir (procfs_dir));
if (dp == NULL)
{
fprintf_unfiltered (gdb_stderr, "failed to opendir \"%s\" - %d (%s)",
- nto_procfs_path, errno, safe_strerror (errno));
+ procfs_dir, errno, safe_strerror (errno));
return;
}
/* Start scan at first pid. */
- rewinddir (dp);
+ rewinddir (dp.get ());
do
{
/* Get the right pid and procfs path for the pid. */
do
{
- dirp = readdir (dp);
+ dirp = readdir (dp.get ());
if (dirp == NULL)
- {
- closedir (dp);
- return;
- }
- snprintf (buf, 511, "%s/%s/as", nto_procfs_path, dirp->d_name);
+ return;
+ snprintf (buf, sizeof (buf), "%s%s/%s/as",
+ (nodestr != NULL) ? nodestr : "",
+ "/proc", dirp->d_name);
pid = atoi (dirp->d_name);
}
while (pid == 0);
- /* Open the procfs path. */
- fd = open (buf, O_RDONLY);
- if (fd == -1)
+ /* Open the procfs path. */
+ scoped_fd fd (open (buf, O_RDONLY));
+ if (fd.get () == -1)
{
fprintf_unfiltered (gdb_stderr, "failed to open %s - %d (%s)\n",
buf, errno, safe_strerror (errno));
- closedir (dp);
- return;
+ continue;
}
pidinfo = (procfs_info *) buf;
- if (devctl (fd, DCMD_PROC_INFO, pidinfo, sizeof (buf), 0) != EOK)
+ if (devctl (fd.get (), DCMD_PROC_INFO, pidinfo, sizeof (buf), 0) != EOK)
{
fprintf_unfiltered (gdb_stderr,
"devctl DCMD_PROC_INFO failed - %d (%s)\n",
num_threads = pidinfo->num_threads;
info = (procfs_debuginfo *) buf;
- if (devctl (fd, DCMD_PROC_MAPDEBUG_BASE, info, sizeof (buf), 0) != EOK)
+ if (devctl (fd.get (), DCMD_PROC_MAPDEBUG_BASE, info, sizeof (buf), 0)
+ != EOK)
strcpy (name, "unavailable");
else
strcpy (name, info->path);
status = (procfs_status *) buf;
for (status->tid = 1; status->tid <= num_threads; status->tid++)
{
- if (devctl (fd, DCMD_PROC_TIDSTATUS, status, sizeof (buf), 0) != EOK
- && status->tid != 0)
- break;
- if (status->tid != 0)
- printf_filtered ("%s - %d/%d\n", name, pid, status->tid);
+ const int err
+ = devctl (fd.get (), DCMD_PROC_TIDSTATUS, status, sizeof (buf), 0);
+ printf_filtered ("%s - %d", name, pid);
+ if (err == EOK && status->tid != 0)
+ printf_filtered ("/%d\n", status->tid);
+ else
+ {
+ printf_filtered ("\n");
+ break;
+ }
}
- close (fd);
}
while (dirp != NULL);
-
- close (fd);
- closedir (dp);
- return;
}
-void
-procfs_meminfo (char *args, int from_tty)
+static void
+procfs_meminfo (const char *args, int from_tty)
{
procfs_mapinfo *mapinfos = NULL;
static int num_mapinfos = 0;
return;
}
- mapinfos = xmalloc (num * sizeof (procfs_mapinfo));
+ mapinfos = XNEWVEC (procfs_mapinfo, num);
num_mapinfos = num;
mapinfo_p = mapinfos;
return;
}
- num = min (num, num_mapinfos);
+ num = std::min (num, num_mapinfos);
/* Run through the list of mapinfos, and store the data and text info
so we can print it at the bottom of the loop. */
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);
}
/* Print status information about what we're accessing. */
-static void
-procfs_files_info (struct target_ops *ignore)
+void
+nto_procfs_target::files_info ()
{
+ struct inferior *inf = current_inferior ();
+
printf_unfiltered ("\tUsing the running image of %s %s via %s.\n",
- attach_flag ? "attached" : "child",
- target_pid_to_str (inferior_ptid), nto_procfs_path);
+ inf->attach_flag ? "attached" : "child",
+ target_pid_to_str (inferior_ptid),
+ (nodestr != NULL) ? nodestr : "local node");
}
-/* Mark our target-struct as eligible for stray "run" and "attach" commands. */
-static int
-procfs_can_run (void)
+/* Target to_pid_to_exec_file implementation. */
+
+char *
+nto_procfs_target::pid_to_exec_file (const int pid)
{
- return 1;
+ int proc_fd;
+ static char proc_path[PATH_MAX];
+ ssize_t rd;
+
+ /* Read exe file name. */
+ snprintf (proc_path, sizeof (proc_path), "%s/proc/%d/exefile",
+ (nodestr != NULL) ? nodestr : "", pid);
+ proc_fd = open (proc_path, O_RDONLY);
+ if (proc_fd == -1)
+ return NULL;
+
+ rd = read (proc_fd, proc_path, sizeof (proc_path) - 1);
+ close (proc_fd);
+ if (rd <= 0)
+ {
+ proc_path[0] = '\0';
+ return NULL;
+ }
+ proc_path[rd] = '\0';
+ return proc_path;
}
/* Attach to process PID, then initialize for debugging it. */
-static void
-procfs_attach (char *args, int from_tty)
+void
+nto_procfs_target::attach (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...");
+ error (_("Attaching GDB to itself is not a good idea..."));
if (from_tty)
{
if (exec_file)
printf_unfiltered ("Attaching to program `%s', %s\n", exec_file,
- target_pid_to_str (pid_to_ptid (pid)));
+ target_pid_to_str (ptid_t (pid)));
else
printf_unfiltered ("Attaching to %s\n",
- target_pid_to_str (pid_to_ptid (pid)));
+ target_pid_to_str (ptid_t (pid)));
gdb_flush (gdb_stdout);
}
- inferior_ptid = do_attach (pid_to_ptid (pid));
- push_target (&procfs_ops);
+ inferior_ptid = do_attach (ptid_t (pid));
+ inf = current_inferior ();
+ inferior_appeared (inf, pid);
+ inf->attach_flag = 1;
+
+ if (!target_is_pushed (ops))
+ push_target (ops);
+
+ procfs_update_thread_list (ops);
}
-static void
-procfs_post_attach (pid_t pid)
+void
+nto_procfs_target::post_attach (pid_t pid)
{
-#ifdef SOLIB_CREATE_INFERIOR_HOOK
if (exec_bfd)
- SOLIB_CREATE_INFERIOR_HOOK (pid);
-#endif
+ 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%s/%d/as",
+ (nodestr != NULL) ? nodestr : "", "/proc", ptid.pid ());
ctl_fd = open (path, O_RDWR);
if (ctl_fd == -1)
- error ("Couldn't open proc file %s, error %d (%s)", path, errno,
+ error (_("Couldn't open proc file %s, error %d (%s)"), path, errno,
safe_strerror (errno));
if (devctl (ctl_fd, DCMD_PROC_STOP, &status, sizeof (status), 0) != EOK)
- error ("Couldn't stop process");
+ error (_("Couldn't stop process"));
/* Define a sigevent for process stopped notification. */
event.sigev_notify = SIGEV_SIGNAL_THREAD;
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);
- attach_flag = 1;
+ SignalKill (nto_node (), ptid.pid (), 0, SIGCONT, 0, 0);
nto_init_solib_absolute_prefix ();
- return ptid;
+ return ptid_t (ptid.pid (), 0, status.tid);
}
/* Ask the user what to do when an interrupt is received. */
static void
interrupt_query (void)
{
- 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 ();
- throw_exception (RETURN_QUIT);
+ target_mourn_inferior (inferior_ptid);
+ quit ();
}
-
- target_terminal_inferior ();
}
/* The user typed ^C twice. */
static void
-nto_interrupt_twice (int signo)
+nto_handle_sigint_twice (int signo)
{
signal (signo, ofunc);
interrupt_query ();
- signal (signo, nto_interrupt_twice);
+ signal (signo, nto_handle_sigint_twice);
}
static void
-nto_interrupt (int signo)
+nto_handle_sigint (int signo)
{
/* If this doesn't work, try more severe steps. */
- signal (signo, nto_interrupt_twice);
+ signal (signo, nto_handle_sigint_twice);
- target_stop ();
+ target_interrupt ();
}
-static ptid_t
-procfs_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
+sptid_t
+nto_procfs_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus,
+ int options)
{
sigset_t set;
siginfo_t info;
ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
- if (ptid_equal (inferior_ptid, null_ptid))
+ if (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;
}
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
while (!(status.flags & _DEBUG_FLAG_ISTOP))
{
- ofunc = (void (*)()) signal (SIGINT, nto_interrupt);
+ ofunc = signal (SIGINT, nto_handle_sigint);
sigwaitinfo (&set, &info);
signal (SIGINT, ofunc);
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
}
+ nto_inferior_data (NULL)->stopped_flags = status.flags;
+ nto_inferior_data (NULL)->stopped_pc = status.ip;
+
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 (inferior_ptid.pid (), &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;
}
}
- return inferior_ptid;
+ return ptid_t (status.pid, 0, status.tid);
}
/* Read the current values of the inferior's registers, both the
general register set and floating point registers (if supported)
and update gdb's idea of their current values. */
-static void
-procfs_fetch_registers (int regno)
+void
+nto_procfs_target::fetch_registers (struct regcache *regcache, int regno)
{
union
{
reg;
int regsize;
- procfs_set_thread (inferior_ptid);
+ procfs_set_thread (regcache->ptid ());
if (devctl (ctl_fd, DCMD_PROC_GETGREG, ®, sizeof (reg), ®size) == EOK)
- nto_supply_gregset ((char *) ®.greg);
+ nto_supply_gregset (regcache, (char *) ®.greg);
if (devctl (ctl_fd, DCMD_PROC_GETFPREG, ®, sizeof (reg), ®size)
== EOK)
- nto_supply_fpregset ((char *) ®.fpreg);
+ nto_supply_fpregset (regcache, (char *) ®.fpreg);
if (devctl (ctl_fd, DCMD_PROC_GETALTREG, ®, sizeof (reg), ®size)
== EOK)
- nto_supply_altregset ((char *) ®.altreg);
+ 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, char *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)
+ 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. */
- if (lseek (ctl_fd, (off_t) memaddr, SEEK_SET) == (off_t) memaddr)
+enum target_xfer_status
+nto_procfs_target::xfer_partial (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);
+ case TARGET_OBJECT_AUXV:
+ if (readbuf != NULL)
+ {
+ int err;
+ CORE_ADDR initial_stack;
+ debug_process_t procinfo;
+ /* For 32-bit architecture, size of auxv_t is 8 bytes. */
+ const unsigned int sizeof_auxv_t = sizeof (auxv_t);
+ const unsigned int sizeof_tempbuf = 20 * sizeof_auxv_t;
+ int tempread;
+ gdb_byte *const tempbuf = alloca (sizeof_tempbuf);
+
+ if (tempbuf == NULL)
+ return TARGET_XFER_E_IO;
+
+ err = devctl (ctl_fd, DCMD_PROC_INFO, &procinfo,
+ sizeof procinfo, 0);
+ if (err != EOK)
+ return TARGET_XFER_E_IO;
+
+ initial_stack = procinfo.initial_stack;
+
+ /* procfs is always 'self-hosted', no byte-order manipulation. */
+ tempread = nto_read_auxv_from_initial_stack (initial_stack, tempbuf,
+ sizeof_tempbuf,
+ sizeof (auxv_t));
+ tempread = std::min (tempread, len) - offset;
+ memcpy (readbuf, tempbuf + offset, tempread);
+ *xfered_len = tempread;
+ return tempread ? TARGET_XFER_OK : TARGET_XFER_EOF;
+ }
+ /* Fallthru */
+ default:
+ return this->beneath ()->xfer_partial (object, annex,
+ readbuf, writebuf, offset, len,
+ xfered_len);
}
- return (nbytes);
}
/* 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. */
-static void
-procfs_detach (char *args, int from_tty)
+void
+nto_procfs_target::detach (inferior *inf, int from_tty)
{
- int siggnal = 0;
+ int pid;
- 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_ptid));
- gdb_flush (gdb_stdout);
- }
- if (args)
- siggnal = atoi (args);
+ target_announce_detach ();
if (siggnal)
- SignalKill (nto_node (), PIDGET (inferior_ptid), 0, siggnal, 0, 0);
+ SignalKill (nto_node (), inferior_ptid.pid (), 0, 0, 0, 0);
close (ctl_fd);
ctl_fd = -1;
- init_thread_list ();
+
+ pid = inferior_ptid.pid ();
inferior_ptid = null_ptid;
- attach_flag = 0;
- unpush_target (&procfs_ops); /* Pop out of handling an inferior. */
+ detach_inferior (pid);
+ init_thread_list ();
+ inf_child_maybe_unpush_target (ops);
}
static int
return 0;
}
-static int
-procfs_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
+int
+nto_procfs_target::insert_breakpoint (struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
{
- return procfs_breakpoint (addr, _DEBUG_BREAK_EXEC, 0);
+ bp_tgt->placed_address = bp_tgt->reqstd_address;
+ return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, 0);
}
-static int
-procfs_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
+int
+nto_procfs_target::remove_breakpoint (struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt,
+ enum remove_bp_reason reason)
{
- return procfs_breakpoint (addr, _DEBUG_BREAK_EXEC, -1);
+ return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, -1);
}
-static int
-procfs_insert_hw_breakpoint (CORE_ADDR addr, char *contents_cache)
+int
+nto_procfs_target::insert_hw_breakpoint (struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
{
- return procfs_breakpoint (addr, _DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, 0);
+ bp_tgt->placed_address = bp_tgt->reqstd_address;
+ return procfs_breakpoint (bp_tgt->placed_address,
+ _DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, 0);
}
-static int
-procfs_remove_hw_breakpoint (CORE_ADDR addr, char *contents_cache)
+int
+nto_procfs_target::remove_hw_breakpoint (struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
{
- return procfs_breakpoint (addr, _DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, -1);
+ 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)
+void
+nto_procfs_target::resume (ptid_t ptid, int step, enum gdb_signal signo)
{
int signal_to_pass;
procfs_status status;
+ sigset_t *run_fault = (sigset_t *) (void *) &run.fault;
- if (ptid_equal (inferior_ptid, null_ptid))
+ if (inferior_ptid == null_ptid)
return;
- procfs_set_thread (ptid_equal (ptid, minus_one_ptid) ? inferior_ptid :
+ procfs_set_thread (ptid == minus_one_ptid ? inferior_ptid :
ptid);
run.flags = _DEBUG_RUN_FAULT | _DEBUG_RUN_TRACE;
if (step)
run.flags |= _DEBUG_RUN_STEP;
- sigemptyset ((sigset_t *) &run.fault);
- sigaddset ((sigset_t *) &run.fault, FLTBPT);
- sigaddset ((sigset_t *) &run.fault, FLTTRACE);
- sigaddset ((sigset_t *) &run.fault, FLTILL);
- sigaddset ((sigset_t *) &run.fault, FLTPRIV);
- sigaddset ((sigset_t *) &run.fault, FLTBOUNDS);
- sigaddset ((sigset_t *) &run.fault, FLTIOVF);
- sigaddset ((sigset_t *) &run.fault, FLTIZDIV);
- sigaddset ((sigset_t *) &run.fault, FLTFPE);
+ sigemptyset (run_fault);
+ sigaddset (run_fault, FLTBPT);
+ sigaddset (run_fault, FLTTRACE);
+ sigaddset (run_fault, FLTILL);
+ sigaddset (run_fault, FLTPRIV);
+ sigaddset (run_fault, FLTBOUNDS);
+ sigaddset (run_fault, FLTIOVF);
+ sigaddset (run_fault, FLTIZDIV);
+ sigaddset (run_fault, FLTFPE);
/* Peter V will be changing this at some point. */
- sigaddset ((sigset_t *) &run.fault, FLTPAGE);
+ sigaddset (run_fault, FLTPAGE);
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 (), inferior_ptid.pid (), 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)
+void
+nto_procfs_target::mourn_inferior ()
{
- if (!ptid_equal (inferior_ptid, null_ptid))
+ if (inferior_ptid != null_ptid)
{
- SignalKill (nto_node (), PIDGET (inferior_ptid), 0, SIGKILL, 0, 0);
+ SignalKill (nto_node (), inferior_ptid.pid (), 0, SIGKILL, 0, 0);
close (ctl_fd);
}
inferior_ptid = null_ptid;
init_thread_list ();
- unpush_target (&procfs_ops);
- generic_mourn_inferior ();
- attach_flag = 0;
+ inf_child_mourn_inferior (ops);
}
/* This function breaks up an argument string into an argument
*argv = NULL;
}
-static void
-procfs_create_inferior (char *exec_file, char *allargs, char **env,
- int from_tty)
+void
+nto_procfs_target::create_inferior (const char *exec_file,
+ const std::string &allargs,
+ char **env, int from_tty)
{
struct inheritance inherit;
pid_t pid;
int flags, errn;
char **argv, *args;
- char *in = "", *out = "", *err = "";
+ const char *in = "", *out = "", *err = "";
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) *
+ argv = xmalloc ((allargs.size () / (unsigned) 2 + 2) *
sizeof (*argv));
argv[0] = get_exec_file (1);
if (!argv[0])
return;
}
- args = xstrdup (allargs);
- breakup_args (args, exec_file ? &argv[1] : &argv[0]);
+ args = xstrdup (allargs.c_str ());
+ breakup_args (args, (exec_file != NULL) ? &argv[1] : &argv[0]);
argv = nto_parse_redirection (argv, &in, &out, &err);
sigprocmask (SIG_BLOCK, &set, NULL);
if (pid == -1)
- error ("Error spawning %s: %d (%s)", argv[0], errno,
+ error (_("Error spawning %s: %d (%s)"), argv[0], errno,
safe_strerror (errno));
if (fds[0] != STDIN_FILENO)
if (fds[2] != STDERR_FILENO)
close (fds[2]);
- inferior_ptid = do_attach (pid_to_ptid (pid));
+ inferior_ptid = do_attach (ptid_t (pid));
+ procfs_update_thread_list (ops);
+
+ inf = current_inferior ();
+ inferior_appeared (inf, pid);
+ inf->attach_flag = 0;
- attach_flag = 0;
flags = _DEBUG_FLAG_KLC; /* Kill-on-Last-Close flag. */
errn = devctl (ctl_fd, DCMD_PROC_SET_FLAG, &flags, sizeof (flags), 0);
if (errn != EOK)
/* warning( "Failed to set Kill-on-Last-Close flag: errno = %d(%s)\n",
errn, strerror(errn) ); */
}
- push_target (&procfs_ops);
- target_terminal_init ();
+ if (!target_is_pushed (ops))
+ push_target (ops);
+ target_terminal::init ();
-#ifdef SOLIB_CREATE_INFERIOR_HOOK
if (exec_bfd != NULL
|| (symfile_objfile != NULL && symfile_objfile->obfd != NULL))
- SOLIB_CREATE_INFERIOR_HOOK (pid);
-#endif
- stop_soon = 0;
- proceed (-1, TARGET_SIGNAL_DEFAULT, 0);
+ solib_create_inferior_hook (0);
}
-static void
-procfs_stop (void)
+void
+nto_procfs_target::interrupt ()
{
devctl (ctl_fd, DCMD_PROC_STOP, NULL, 0, 0);
}
-static void
-procfs_kill_inferior (void)
-{
- target_mourn_inferior ();
-}
-
-/* Store register REGNO, or all registers if REGNO == -1, from the contents
- of REGISTERS. */
-static void
-procfs_prepare_to_store (void)
+void
+nto_procfs_target::kill ()
{
+ target_mourn_inferior (inferior_ptid);
}
/* Fill buf with regset and return devctl cmd to do the setting. Return
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 (int regno)
+nto_procfs_target::store_registers (struct regcache *regcache, int regno)
{
union
{
unsigned off;
int len, regset, regsize, dev_set, err;
char *data;
+ ptid_t ptid = regcache->ptid ();
- if (ptid_equal (inferior_ptid, null_ptid))
+ if (ptid == null_ptid)
return;
- procfs_set_thread (inferior_ptid);
+ procfs_set_thread (ptid);
if (regno == -1)
{
if (dev_set == -1)
continue;
- if (nto_regset_fill (regset, (char *) ®) == -1)
+ if (nto_regset_fill (regcache, regset, (char *) ®) == -1)
continue;
err = devctl (ctl_fd, dev_set, ®, regsize, 0);
if (dev_set == -1)
return;
- len = nto_register_area (regno, regset, &off);
+ len = nto_register_area (regcache->arch (),
+ regno, regset, &off);
if (len < 1)
return;
- regcache_raw_collect (current_regcache, regno, (char *) ® + off);
+ regcache->raw_collect (regno, (char *) ® + off);
err = devctl (ctl_fd, dev_set, ®, regsize, 0);
if (err != EOK)
}
}
-static void
-notice_signals (void)
+/* Set list of signals to be handled in the target. */
+
+void
+nto_procfs_target::pass_signals
+ (gdb::array_view<const 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 < pass_signals.size () && 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)
-{
-/* NYI */
- return NULL;
-}
-
char *
-procfs_pid_to_str (ptid_t ptid)
+nto_procfs_target::pid_to_str (ptid_t ptid)
{
static char buf[1024];
int pid, tid, n;
struct tidinfo *tip;
- pid = ptid_get_pid (ptid);
- tid = ptid_get_tid (ptid);
+ pid = ptid.pid ();
+ tid = ptid.tid ();
n = snprintf (buf, 1023, "process %d", pid);
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>. */
+
+int
+nto_procfs_target::can_run ()
+{
+ return 0;
+}
+
+/* "target procfs". */
+static nto_procfs_target_procfs nto_procfs_ops;
+
+/* "target native". */
+static nto_procfs_target_native nto_native_ops;
+
+/* 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;
+ /* Register "target native". This is the default run target. */
+ add_target (nto_native_target_info, inf_child_open_target);
+ set_native_target (&nto_native_ops);
+
+ /* Register "target procfs <node>". */
+ add_target (nto_procfs_target_info, inf_child_open_target);
}
#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;
nto_cpuinfo_valid = 1;
- add_info ("pidlist", procfs_pidlist, "pidlist");
- add_info ("meminfo", procfs_meminfo, "memory information");
+ add_info ("pidlist", procfs_pidlist, _("pidlist"));
+ add_info ("meminfo", procfs_meminfo, _("memory information"));
nto_is_nto_target = procfs_is_nto_target;
}
static int
-procfs_hw_watchpoint (int addr, int len, int type)
+procfs_hw_watchpoint (int addr, int len, enum target_hw_bp_type type)
{
procfs_break brk;
switch (type)
{
- case 1: /* Read. */
+ case hw_read:
brk.type = _DEBUG_BREAK_RD;
break;
- case 2: /* Read/Write. */
+ case hw_access:
brk.type = _DEBUG_BREAK_RW;
break;
default: /* Modify. */
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)
+bool
+nto_procfs_target::can_use_hw_breakpoint (enum bptype type,
+ int cnt, int othertype)
{
return 1;
}
-static int
-procfs_remove_hw_watchpoint (CORE_ADDR addr, int len, int type)
+int
+nto_procfs_target::remove_hw_watchpoint (CORE_ADDR addr, int len,
+ enum target_hw_bp_type type,
+ struct expression *cond)
{
return procfs_hw_watchpoint (addr, -1, type);
}
-static int
-procfs_insert_hw_watchpoint (CORE_ADDR addr, int len, int type)
+int
+nto_procfs_target::insert_hw_watchpoint (CORE_ADDR addr, int len,
+ enum target_hw_bp_type type,
+ struct expression *cond)
{
return procfs_hw_watchpoint (addr, len, type);
}
-static int
-procfs_stopped_by_watchpoint (void)
+bool
+nto_procfs_target::stopped_by_watchpoint ()
{
- return 0;
+ /* NOTE: nto_stopped_by_watchpoint will be called ONLY while we are
+ stopped due to a SIGTRAP. This assumes gdb works in 'all-stop' mode;
+ future gdb versions will likely run in 'non-stop' mode in which case
+ we will have to store/examine statuses per thread in question.
+ Until then, this will work fine. */
+
+ struct inferior *inf = current_inferior ();
+ struct nto_inferior_data *inf_data;
+
+ gdb_assert (inf != NULL);
+
+ inf_data = nto_inferior_data (inf);
+
+ return inf_data->stopped_flags
+ & (_DEBUG_FLAG_TRACE_RD
+ | _DEBUG_FLAG_TRACE_WR
+ | _DEBUG_FLAG_TRACE_MODIFY);
}
projects / thirdparty / binutils-gdb.git / blobdiff