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jeremybenn |
/* Machine independent support for QNX Neutrino /proc (process file system)
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for GDB. Written by Colin Burgess at QNX Software Systems Limited.
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Copyright (C) 2003, 2006, 2007, 2008, 2009, 2010
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Free Software Foundation, Inc.
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Contributed by QNX Software Systems Ltd.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include <fcntl.h>
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#include <spawn.h>
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#include <sys/debug.h>
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#include <sys/procfs.h>
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#include <sys/neutrino.h>
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#include <sys/syspage.h>
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#include "gdb_dirent.h"
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#include <sys/netmgr.h>
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#include "exceptions.h"
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#include "gdb_string.h"
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#include "gdbcore.h"
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#include "inferior.h"
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#include "target.h"
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#include "objfiles.h"
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#include "gdbthread.h"
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#include "nto-tdep.h"
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#include "command.h"
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#include "regcache.h"
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#include "solib.h"
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#define NULL_PID 0
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#define _DEBUG_FLAG_TRACE (_DEBUG_FLAG_TRACE_EXEC|_DEBUG_FLAG_TRACE_RD|\
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_DEBUG_FLAG_TRACE_WR|_DEBUG_FLAG_TRACE_MODIFY)
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static struct target_ops procfs_ops;
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int ctl_fd;
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static void (*ofunc) ();
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static procfs_run run;
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static void procfs_open (char *, int);
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static int procfs_can_run (void);
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static int procfs_xfer_memory (CORE_ADDR, gdb_byte *, int, int,
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struct mem_attrib *attrib,
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struct target_ops *);
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static void notice_signals (void);
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static void init_procfs_ops (void);
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static ptid_t do_attach (ptid_t ptid);
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static int procfs_can_use_hw_breakpoint (int, int, int);
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static int procfs_insert_hw_watchpoint (CORE_ADDR addr, int len, int type);
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static int procfs_remove_hw_watchpoint (CORE_ADDR addr, int len, int type);
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static int procfs_stopped_by_watchpoint (void);
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/* These two globals are only ever set in procfs_open(), but are
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referenced elsewhere. 'nto_procfs_node' is a flag used to say
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whether we are local, or we should get the current node descriptor
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for the remote QNX node. */
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static char nto_procfs_path[PATH_MAX] = { "/proc" };
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static unsigned nto_procfs_node = ND_LOCAL_NODE;
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/* Return the current QNX Node, or error out. This is a simple
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wrapper for the netmgr_strtond() function. The reason this
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is required is because QNX node descriptors are transient so
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we have to re-acquire them every time. */
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static unsigned
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nto_node (void)
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{
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unsigned node;
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if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0)
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return ND_LOCAL_NODE;
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node = netmgr_strtond (nto_procfs_path, 0);
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if (node == -1)
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error (_("Lost the QNX node. Debug session probably over."));
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return (node);
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}
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static enum gdb_osabi
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procfs_is_nto_target (bfd *abfd)
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{
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return GDB_OSABI_QNXNTO;
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}
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/* This is called when we call 'target procfs <arg>' from the (gdb) prompt.
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For QNX6 (nto), the only valid arg will be a QNX node string,
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eg: "/net/some_node". If arg is not a valid QNX node, we will
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default to local. */
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static void
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procfs_open (char *arg, int from_tty)
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{
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char *nodestr;
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char *endstr;
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char buffer[50];
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int fd, total_size;
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procfs_sysinfo *sysinfo;
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struct cleanup *cleanups;
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nto_is_nto_target = procfs_is_nto_target;
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/* Set the default node used for spawning to this one,
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and only override it if there is a valid arg. */
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nto_procfs_node = ND_LOCAL_NODE;
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nodestr = arg ? xstrdup (arg) : arg;
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init_thread_list ();
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if (nodestr)
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{
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nto_procfs_node = netmgr_strtond (nodestr, &endstr);
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if (nto_procfs_node == -1)
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{
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if (errno == ENOTSUP)
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printf_filtered ("QNX Net Manager not found.\n");
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printf_filtered ("Invalid QNX node %s: error %d (%s).\n", nodestr,
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errno, safe_strerror (errno));
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xfree (nodestr);
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nodestr = NULL;
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nto_procfs_node = ND_LOCAL_NODE;
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}
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else if (*endstr)
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{
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if (*(endstr - 1) == '/')
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*(endstr - 1) = 0;
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else
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*endstr = 0;
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}
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}
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snprintf (nto_procfs_path, PATH_MAX - 1, "%s%s", nodestr ? nodestr : "",
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"/proc");
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if (nodestr)
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xfree (nodestr);
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fd = open (nto_procfs_path, O_RDONLY);
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if (fd == -1)
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{
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printf_filtered ("Error opening %s : %d (%s)\n", nto_procfs_path, errno,
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safe_strerror (errno));
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error (_("Invalid procfs arg"));
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}
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cleanups = make_cleanup_close (fd);
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sysinfo = (void *) buffer;
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if (devctl (fd, DCMD_PROC_SYSINFO, sysinfo, sizeof buffer, 0) != EOK)
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{
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printf_filtered ("Error getting size: %d (%s)\n", errno,
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safe_strerror (errno));
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error (_("Devctl failed."));
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}
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else
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{
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total_size = sysinfo->total_size;
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sysinfo = alloca (total_size);
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if (!sysinfo)
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{
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printf_filtered ("Memory error: %d (%s)\n", errno,
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safe_strerror (errno));
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error (_("alloca failed."));
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}
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else
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{
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if (devctl (fd, DCMD_PROC_SYSINFO, sysinfo, total_size, 0) != EOK)
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{
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printf_filtered ("Error getting sysinfo: %d (%s)\n", errno,
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safe_strerror (errno));
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error (_("Devctl failed."));
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}
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else
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{
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if (sysinfo->type !=
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nto_map_arch_to_cputype (gdbarch_bfd_arch_info
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(target_gdbarch)->arch_name))
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error (_("Invalid target CPU."));
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}
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}
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}
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do_cleanups (cleanups);
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printf_filtered ("Debugging using %s\n", nto_procfs_path);
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}
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static void
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procfs_set_thread (ptid_t ptid)
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{
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pid_t tid;
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tid = ptid_get_tid (ptid);
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devctl (ctl_fd, DCMD_PROC_CURTHREAD, &tid, sizeof (tid), 0);
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}
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/* Return nonzero if the thread TH is still alive. */
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static int
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procfs_thread_alive (struct target_ops *ops, ptid_t ptid)
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{
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pid_t tid;
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pid_t pid;
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procfs_status status;
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int err;
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tid = ptid_get_tid (ptid);
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pid = ptid_get_pid (ptid);
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if (kill (pid, 0) == -1)
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return 0;
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status.tid = tid;
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if ((err = devctl (ctl_fd, DCMD_PROC_TIDSTATUS,
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&status, sizeof (status), 0)) != EOK)
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return 0;
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/* Thread is alive or dead but not yet joined,
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or dead and there is an alive (or dead unjoined) thread with
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higher tid.
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If the tid is not the same as requested, requested tid is dead. */
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return (status.tid == tid) && (status.state != STATE_DEAD);
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}
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static void
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update_thread_private_data_name (struct thread_info *new_thread,
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const char *newname)
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{
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int newnamelen;
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struct private_thread_info *pti;
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gdb_assert (newname != NULL);
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gdb_assert (new_thread != NULL);
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newnamelen = strlen (newname);
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if (!new_thread->private)
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{
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new_thread->private = xmalloc (offsetof (struct private_thread_info,
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name)
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+ newnamelen + 1);
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memcpy (new_thread->private->name, newname, newnamelen + 1);
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}
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else if (strcmp (newname, new_thread->private->name) != 0)
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{
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/* Reallocate if neccessary. */
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int oldnamelen = strlen (new_thread->private->name);
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if (oldnamelen < newnamelen)
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new_thread->private = xrealloc (new_thread->private,
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offsetof (struct private_thread_info,
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name)
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+ newnamelen + 1);
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memcpy (new_thread->private->name, newname, newnamelen + 1);
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}
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}
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static void
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update_thread_private_data (struct thread_info *new_thread,
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pthread_t tid, int state, int flags)
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{
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struct private_thread_info *pti;
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procfs_info pidinfo;
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struct _thread_name *tn;
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procfs_threadctl tctl;
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#if _NTO_VERSION > 630
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gdb_assert (new_thread != NULL);
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if (devctl (ctl_fd, DCMD_PROC_INFO, &pidinfo,
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sizeof(pidinfo), 0) != EOK)
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return;
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293 |
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memset (&tctl, 0, sizeof (tctl));
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tctl.cmd = _NTO_TCTL_NAME;
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tn = (struct _thread_name *) (&tctl.data);
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297 |
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/* Fetch name for the given thread. */
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tctl.tid = tid;
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tn->name_buf_len = sizeof (tctl.data) - sizeof (*tn);
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tn->new_name_len = -1; /* Getting, not setting. */
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if (devctl (ctl_fd, DCMD_PROC_THREADCTL, &tctl, sizeof (tctl), NULL) != EOK)
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tn->name_buf[0] = '\0';
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304 |
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305 |
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tn->name_buf[_NTO_THREAD_NAME_MAX] = '\0';
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306 |
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307 |
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update_thread_private_data_name (new_thread, tn->name_buf);
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308 |
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pti = (struct private_thread_info *) new_thread->private;
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pti->tid = tid;
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311 |
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pti->state = state;
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312 |
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pti->flags = flags;
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313 |
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#endif /* _NTO_VERSION */
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314 |
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}
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315 |
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316 |
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void
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317 |
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procfs_find_new_threads (struct target_ops *ops)
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318 |
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{
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319 |
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procfs_status status;
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pid_t pid;
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321 |
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ptid_t ptid;
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322 |
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pthread_t tid;
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struct thread_info *new_thread;
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324 |
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325 |
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if (ctl_fd == -1)
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return;
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327 |
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328 |
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pid = ptid_get_pid (inferior_ptid);
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329 |
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330 |
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status.tid = 1;
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331 |
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332 |
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for (tid = 1;; ++tid)
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333 |
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{
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334 |
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if (status.tid == tid
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&& (devctl (ctl_fd, DCMD_PROC_TIDSTATUS, &status, sizeof (status), 0)
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336 |
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!= EOK))
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337 |
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break;
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338 |
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if (status.tid != tid)
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339 |
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/* The reason why this would not be equal is that devctl might have
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340 |
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returned different tid, meaning the requested tid no longer exists
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341 |
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(e.g. thread exited). */
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342 |
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continue;
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343 |
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ptid = ptid_build (pid, 0, tid);
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344 |
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new_thread = find_thread_ptid (ptid);
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345 |
|
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if (!new_thread)
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346 |
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new_thread = add_thread (ptid);
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347 |
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update_thread_private_data (new_thread, tid, status.state, 0);
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348 |
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status.tid++;
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349 |
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}
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350 |
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return;
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351 |
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}
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352 |
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353 |
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static void
|
354 |
|
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do_closedir_cleanup (void *dir)
|
355 |
|
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{
|
356 |
|
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closedir (dir);
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357 |
|
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}
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358 |
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359 |
|
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void
|
360 |
|
|
procfs_pidlist (char *args, int from_tty)
|
361 |
|
|
{
|
362 |
|
|
DIR *dp = NULL;
|
363 |
|
|
struct dirent *dirp = NULL;
|
364 |
|
|
char buf[512];
|
365 |
|
|
procfs_info *pidinfo = NULL;
|
366 |
|
|
procfs_debuginfo *info = NULL;
|
367 |
|
|
procfs_status *status = NULL;
|
368 |
|
|
pid_t num_threads = 0;
|
369 |
|
|
pid_t pid;
|
370 |
|
|
char name[512];
|
371 |
|
|
struct cleanup *cleanups;
|
372 |
|
|
|
373 |
|
|
dp = opendir (nto_procfs_path);
|
374 |
|
|
if (dp == NULL)
|
375 |
|
|
{
|
376 |
|
|
fprintf_unfiltered (gdb_stderr, "failed to opendir \"%s\" - %d (%s)",
|
377 |
|
|
nto_procfs_path, errno, safe_strerror (errno));
|
378 |
|
|
return;
|
379 |
|
|
}
|
380 |
|
|
|
381 |
|
|
cleanups = make_cleanup (do_closedir_cleanup, dp);
|
382 |
|
|
|
383 |
|
|
/* Start scan at first pid. */
|
384 |
|
|
rewinddir (dp);
|
385 |
|
|
|
386 |
|
|
do
|
387 |
|
|
{
|
388 |
|
|
int fd;
|
389 |
|
|
struct cleanup *inner_cleanup;
|
390 |
|
|
|
391 |
|
|
/* Get the right pid and procfs path for the pid. */
|
392 |
|
|
do
|
393 |
|
|
{
|
394 |
|
|
dirp = readdir (dp);
|
395 |
|
|
if (dirp == NULL)
|
396 |
|
|
{
|
397 |
|
|
do_cleanups (cleanups);
|
398 |
|
|
return;
|
399 |
|
|
}
|
400 |
|
|
snprintf (buf, 511, "%s/%s/as", nto_procfs_path, dirp->d_name);
|
401 |
|
|
pid = atoi (dirp->d_name);
|
402 |
|
|
}
|
403 |
|
|
while (pid == 0);
|
404 |
|
|
|
405 |
|
|
/* Open the procfs path. */
|
406 |
|
|
fd = open (buf, O_RDONLY);
|
407 |
|
|
if (fd == -1)
|
408 |
|
|
{
|
409 |
|
|
fprintf_unfiltered (gdb_stderr, "failed to open %s - %d (%s)\n",
|
410 |
|
|
buf, errno, safe_strerror (errno));
|
411 |
|
|
do_cleanups (cleanups);
|
412 |
|
|
return;
|
413 |
|
|
}
|
414 |
|
|
inner_cleanup = make_cleanup_close (fd);
|
415 |
|
|
|
416 |
|
|
pidinfo = (procfs_info *) buf;
|
417 |
|
|
if (devctl (fd, DCMD_PROC_INFO, pidinfo, sizeof (buf), 0) != EOK)
|
418 |
|
|
{
|
419 |
|
|
fprintf_unfiltered (gdb_stderr,
|
420 |
|
|
"devctl DCMD_PROC_INFO failed - %d (%s)\n",
|
421 |
|
|
errno, safe_strerror (errno));
|
422 |
|
|
break;
|
423 |
|
|
}
|
424 |
|
|
num_threads = pidinfo->num_threads;
|
425 |
|
|
|
426 |
|
|
info = (procfs_debuginfo *) buf;
|
427 |
|
|
if (devctl (fd, DCMD_PROC_MAPDEBUG_BASE, info, sizeof (buf), 0) != EOK)
|
428 |
|
|
strcpy (name, "unavailable");
|
429 |
|
|
else
|
430 |
|
|
strcpy (name, info->path);
|
431 |
|
|
|
432 |
|
|
/* Collect state info on all the threads. */
|
433 |
|
|
status = (procfs_status *) buf;
|
434 |
|
|
for (status->tid = 1; status->tid <= num_threads; status->tid++)
|
435 |
|
|
{
|
436 |
|
|
if (devctl (fd, DCMD_PROC_TIDSTATUS, status, sizeof (buf), 0) != EOK
|
437 |
|
|
&& status->tid != 0)
|
438 |
|
|
break;
|
439 |
|
|
if (status->tid != 0)
|
440 |
|
|
printf_filtered ("%s - %d/%d\n", name, pid, status->tid);
|
441 |
|
|
}
|
442 |
|
|
|
443 |
|
|
do_cleanups (inner_cleanup);
|
444 |
|
|
}
|
445 |
|
|
while (dirp != NULL);
|
446 |
|
|
|
447 |
|
|
do_cleanups (cleanups);
|
448 |
|
|
return;
|
449 |
|
|
}
|
450 |
|
|
|
451 |
|
|
void
|
452 |
|
|
procfs_meminfo (char *args, int from_tty)
|
453 |
|
|
{
|
454 |
|
|
procfs_mapinfo *mapinfos = NULL;
|
455 |
|
|
static int num_mapinfos = 0;
|
456 |
|
|
procfs_mapinfo *mapinfo_p, *mapinfo_p2;
|
457 |
|
|
int flags = ~0, err, num, i, j;
|
458 |
|
|
|
459 |
|
|
struct
|
460 |
|
|
{
|
461 |
|
|
procfs_debuginfo info;
|
462 |
|
|
char buff[_POSIX_PATH_MAX];
|
463 |
|
|
} map;
|
464 |
|
|
|
465 |
|
|
struct info
|
466 |
|
|
{
|
467 |
|
|
unsigned addr;
|
468 |
|
|
unsigned size;
|
469 |
|
|
unsigned flags;
|
470 |
|
|
unsigned debug_vaddr;
|
471 |
|
|
unsigned long long offset;
|
472 |
|
|
};
|
473 |
|
|
|
474 |
|
|
struct printinfo
|
475 |
|
|
{
|
476 |
|
|
unsigned long long ino;
|
477 |
|
|
unsigned dev;
|
478 |
|
|
struct info text;
|
479 |
|
|
struct info data;
|
480 |
|
|
char name[256];
|
481 |
|
|
} printme;
|
482 |
|
|
|
483 |
|
|
/* Get the number of map entrys. */
|
484 |
|
|
err = devctl (ctl_fd, DCMD_PROC_MAPINFO, NULL, 0, &num);
|
485 |
|
|
if (err != EOK)
|
486 |
|
|
{
|
487 |
|
|
printf ("failed devctl num mapinfos - %d (%s)\n", err,
|
488 |
|
|
safe_strerror (err));
|
489 |
|
|
return;
|
490 |
|
|
}
|
491 |
|
|
|
492 |
|
|
mapinfos = xmalloc (num * sizeof (procfs_mapinfo));
|
493 |
|
|
|
494 |
|
|
num_mapinfos = num;
|
495 |
|
|
mapinfo_p = mapinfos;
|
496 |
|
|
|
497 |
|
|
/* Fill the map entrys. */
|
498 |
|
|
err = devctl (ctl_fd, DCMD_PROC_MAPINFO, mapinfo_p, num
|
499 |
|
|
* sizeof (procfs_mapinfo), &num);
|
500 |
|
|
if (err != EOK)
|
501 |
|
|
{
|
502 |
|
|
printf ("failed devctl mapinfos - %d (%s)\n", err, safe_strerror (err));
|
503 |
|
|
xfree (mapinfos);
|
504 |
|
|
return;
|
505 |
|
|
}
|
506 |
|
|
|
507 |
|
|
num = min (num, num_mapinfos);
|
508 |
|
|
|
509 |
|
|
/* Run through the list of mapinfos, and store the data and text info
|
510 |
|
|
so we can print it at the bottom of the loop. */
|
511 |
|
|
for (mapinfo_p = mapinfos, i = 0; i < num; i++, mapinfo_p++)
|
512 |
|
|
{
|
513 |
|
|
if (!(mapinfo_p->flags & flags))
|
514 |
|
|
mapinfo_p->ino = 0;
|
515 |
|
|
|
516 |
|
|
if (mapinfo_p->ino == 0) /* Already visited. */
|
517 |
|
|
continue;
|
518 |
|
|
|
519 |
|
|
map.info.vaddr = mapinfo_p->vaddr;
|
520 |
|
|
|
521 |
|
|
err = devctl (ctl_fd, DCMD_PROC_MAPDEBUG, &map, sizeof (map), 0);
|
522 |
|
|
if (err != EOK)
|
523 |
|
|
continue;
|
524 |
|
|
|
525 |
|
|
memset (&printme, 0, sizeof printme);
|
526 |
|
|
printme.dev = mapinfo_p->dev;
|
527 |
|
|
printme.ino = mapinfo_p->ino;
|
528 |
|
|
printme.text.addr = mapinfo_p->vaddr;
|
529 |
|
|
printme.text.size = mapinfo_p->size;
|
530 |
|
|
printme.text.flags = mapinfo_p->flags;
|
531 |
|
|
printme.text.offset = mapinfo_p->offset;
|
532 |
|
|
printme.text.debug_vaddr = map.info.vaddr;
|
533 |
|
|
strcpy (printme.name, map.info.path);
|
534 |
|
|
|
535 |
|
|
/* Check for matching data. */
|
536 |
|
|
for (mapinfo_p2 = mapinfos, j = 0; j < num; j++, mapinfo_p2++)
|
537 |
|
|
{
|
538 |
|
|
if (mapinfo_p2->vaddr != mapinfo_p->vaddr
|
539 |
|
|
&& mapinfo_p2->ino == mapinfo_p->ino
|
540 |
|
|
&& mapinfo_p2->dev == mapinfo_p->dev)
|
541 |
|
|
{
|
542 |
|
|
map.info.vaddr = mapinfo_p2->vaddr;
|
543 |
|
|
err =
|
544 |
|
|
devctl (ctl_fd, DCMD_PROC_MAPDEBUG, &map, sizeof (map), 0);
|
545 |
|
|
if (err != EOK)
|
546 |
|
|
continue;
|
547 |
|
|
|
548 |
|
|
if (strcmp (map.info.path, printme.name))
|
549 |
|
|
continue;
|
550 |
|
|
|
551 |
|
|
/* Lower debug_vaddr is always text, if nessessary, swap. */
|
552 |
|
|
if ((int) map.info.vaddr < (int) printme.text.debug_vaddr)
|
553 |
|
|
{
|
554 |
|
|
memcpy (&(printme.data), &(printme.text),
|
555 |
|
|
sizeof (printme.data));
|
556 |
|
|
printme.text.addr = mapinfo_p2->vaddr;
|
557 |
|
|
printme.text.size = mapinfo_p2->size;
|
558 |
|
|
printme.text.flags = mapinfo_p2->flags;
|
559 |
|
|
printme.text.offset = mapinfo_p2->offset;
|
560 |
|
|
printme.text.debug_vaddr = map.info.vaddr;
|
561 |
|
|
}
|
562 |
|
|
else
|
563 |
|
|
{
|
564 |
|
|
printme.data.addr = mapinfo_p2->vaddr;
|
565 |
|
|
printme.data.size = mapinfo_p2->size;
|
566 |
|
|
printme.data.flags = mapinfo_p2->flags;
|
567 |
|
|
printme.data.offset = mapinfo_p2->offset;
|
568 |
|
|
printme.data.debug_vaddr = map.info.vaddr;
|
569 |
|
|
}
|
570 |
|
|
mapinfo_p2->ino = 0;
|
571 |
|
|
}
|
572 |
|
|
}
|
573 |
|
|
mapinfo_p->ino = 0;
|
574 |
|
|
|
575 |
|
|
printf_filtered ("%s\n", printme.name);
|
576 |
|
|
printf_filtered ("\ttext=%08x bytes @ 0x%08x\n", printme.text.size,
|
577 |
|
|
printme.text.addr);
|
578 |
|
|
printf_filtered ("\t\tflags=%08x\n", printme.text.flags);
|
579 |
|
|
printf_filtered ("\t\tdebug=%08x\n", printme.text.debug_vaddr);
|
580 |
|
|
printf_filtered ("\t\toffset=%s\n", phex (printme.text.offset, 8));
|
581 |
|
|
if (printme.data.size)
|
582 |
|
|
{
|
583 |
|
|
printf_filtered ("\tdata=%08x bytes @ 0x%08x\n", printme.data.size,
|
584 |
|
|
printme.data.addr);
|
585 |
|
|
printf_filtered ("\t\tflags=%08x\n", printme.data.flags);
|
586 |
|
|
printf_filtered ("\t\tdebug=%08x\n", printme.data.debug_vaddr);
|
587 |
|
|
printf_filtered ("\t\toffset=%s\n", phex (printme.data.offset, 8));
|
588 |
|
|
}
|
589 |
|
|
printf_filtered ("\tdev=0x%x\n", printme.dev);
|
590 |
|
|
printf_filtered ("\tino=0x%x\n", (unsigned int) printme.ino);
|
591 |
|
|
}
|
592 |
|
|
xfree (mapinfos);
|
593 |
|
|
return;
|
594 |
|
|
}
|
595 |
|
|
|
596 |
|
|
/* Print status information about what we're accessing. */
|
597 |
|
|
static void
|
598 |
|
|
procfs_files_info (struct target_ops *ignore)
|
599 |
|
|
{
|
600 |
|
|
struct inferior *inf = current_inferior ();
|
601 |
|
|
|
602 |
|
|
printf_unfiltered ("\tUsing the running image of %s %s via %s.\n",
|
603 |
|
|
inf->attach_flag ? "attached" : "child",
|
604 |
|
|
target_pid_to_str (inferior_ptid), nto_procfs_path);
|
605 |
|
|
}
|
606 |
|
|
|
607 |
|
|
/* Mark our target-struct as eligible for stray "run" and "attach" commands. */
|
608 |
|
|
static int
|
609 |
|
|
procfs_can_run (void)
|
610 |
|
|
{
|
611 |
|
|
return 1;
|
612 |
|
|
}
|
613 |
|
|
|
614 |
|
|
/* Attach to process PID, then initialize for debugging it. */
|
615 |
|
|
static void
|
616 |
|
|
procfs_attach (struct target_ops *ops, char *args, int from_tty)
|
617 |
|
|
{
|
618 |
|
|
char *exec_file;
|
619 |
|
|
int pid;
|
620 |
|
|
struct inferior *inf;
|
621 |
|
|
|
622 |
|
|
pid = parse_pid_to_attach (args);
|
623 |
|
|
|
624 |
|
|
if (pid == getpid ())
|
625 |
|
|
error (_("Attaching GDB to itself is not a good idea..."));
|
626 |
|
|
|
627 |
|
|
if (from_tty)
|
628 |
|
|
{
|
629 |
|
|
exec_file = (char *) get_exec_file (0);
|
630 |
|
|
|
631 |
|
|
if (exec_file)
|
632 |
|
|
printf_unfiltered ("Attaching to program `%s', %s\n", exec_file,
|
633 |
|
|
target_pid_to_str (pid_to_ptid (pid)));
|
634 |
|
|
else
|
635 |
|
|
printf_unfiltered ("Attaching to %s\n",
|
636 |
|
|
target_pid_to_str (pid_to_ptid (pid)));
|
637 |
|
|
|
638 |
|
|
gdb_flush (gdb_stdout);
|
639 |
|
|
}
|
640 |
|
|
inferior_ptid = do_attach (pid_to_ptid (pid));
|
641 |
|
|
inf = current_inferior ();
|
642 |
|
|
inferior_appeared (inf, pid);
|
643 |
|
|
inf->attach_flag = 1;
|
644 |
|
|
|
645 |
|
|
push_target (ops);
|
646 |
|
|
|
647 |
|
|
procfs_find_new_threads (ops);
|
648 |
|
|
}
|
649 |
|
|
|
650 |
|
|
static void
|
651 |
|
|
procfs_post_attach (pid_t pid)
|
652 |
|
|
{
|
653 |
|
|
if (exec_bfd)
|
654 |
|
|
solib_create_inferior_hook (0);
|
655 |
|
|
}
|
656 |
|
|
|
657 |
|
|
static ptid_t
|
658 |
|
|
do_attach (ptid_t ptid)
|
659 |
|
|
{
|
660 |
|
|
procfs_status status;
|
661 |
|
|
struct sigevent event;
|
662 |
|
|
char path[PATH_MAX];
|
663 |
|
|
|
664 |
|
|
snprintf (path, PATH_MAX - 1, "%s/%d/as", nto_procfs_path, PIDGET (ptid));
|
665 |
|
|
ctl_fd = open (path, O_RDWR);
|
666 |
|
|
if (ctl_fd == -1)
|
667 |
|
|
error (_("Couldn't open proc file %s, error %d (%s)"), path, errno,
|
668 |
|
|
safe_strerror (errno));
|
669 |
|
|
if (devctl (ctl_fd, DCMD_PROC_STOP, &status, sizeof (status), 0) != EOK)
|
670 |
|
|
error (_("Couldn't stop process"));
|
671 |
|
|
|
672 |
|
|
/* Define a sigevent for process stopped notification. */
|
673 |
|
|
event.sigev_notify = SIGEV_SIGNAL_THREAD;
|
674 |
|
|
event.sigev_signo = SIGUSR1;
|
675 |
|
|
event.sigev_code = 0;
|
676 |
|
|
event.sigev_value.sival_ptr = NULL;
|
677 |
|
|
event.sigev_priority = -1;
|
678 |
|
|
devctl (ctl_fd, DCMD_PROC_EVENT, &event, sizeof (event), 0);
|
679 |
|
|
|
680 |
|
|
if (devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0) == EOK
|
681 |
|
|
&& status.flags & _DEBUG_FLAG_STOPPED)
|
682 |
|
|
SignalKill (nto_node (), PIDGET (ptid), 0, SIGCONT, 0, 0);
|
683 |
|
|
nto_init_solib_absolute_prefix ();
|
684 |
|
|
return ptid_build (PIDGET (ptid), 0, status.tid);
|
685 |
|
|
}
|
686 |
|
|
|
687 |
|
|
/* Ask the user what to do when an interrupt is received. */
|
688 |
|
|
static void
|
689 |
|
|
interrupt_query (void)
|
690 |
|
|
{
|
691 |
|
|
target_terminal_ours ();
|
692 |
|
|
|
693 |
|
|
if (query (_("Interrupted while waiting for the program.\n\
|
694 |
|
|
Give up (and stop debugging it)? ")))
|
695 |
|
|
{
|
696 |
|
|
target_mourn_inferior ();
|
697 |
|
|
deprecated_throw_reason (RETURN_QUIT);
|
698 |
|
|
}
|
699 |
|
|
|
700 |
|
|
target_terminal_inferior ();
|
701 |
|
|
}
|
702 |
|
|
|
703 |
|
|
/* The user typed ^C twice. */
|
704 |
|
|
static void
|
705 |
|
|
nto_interrupt_twice (int signo)
|
706 |
|
|
{
|
707 |
|
|
signal (signo, ofunc);
|
708 |
|
|
interrupt_query ();
|
709 |
|
|
signal (signo, nto_interrupt_twice);
|
710 |
|
|
}
|
711 |
|
|
|
712 |
|
|
static void
|
713 |
|
|
nto_interrupt (int signo)
|
714 |
|
|
{
|
715 |
|
|
/* If this doesn't work, try more severe steps. */
|
716 |
|
|
signal (signo, nto_interrupt_twice);
|
717 |
|
|
|
718 |
|
|
target_stop (inferior_ptid);
|
719 |
|
|
}
|
720 |
|
|
|
721 |
|
|
static ptid_t
|
722 |
|
|
procfs_wait (struct target_ops *ops,
|
723 |
|
|
ptid_t ptid, struct target_waitstatus *ourstatus, int options)
|
724 |
|
|
{
|
725 |
|
|
sigset_t set;
|
726 |
|
|
siginfo_t info;
|
727 |
|
|
procfs_status status;
|
728 |
|
|
static int exit_signo = 0; /* To track signals that cause termination. */
|
729 |
|
|
|
730 |
|
|
ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
|
731 |
|
|
|
732 |
|
|
if (ptid_equal (inferior_ptid, null_ptid))
|
733 |
|
|
{
|
734 |
|
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
735 |
|
|
ourstatus->value.sig = TARGET_SIGNAL_0;
|
736 |
|
|
exit_signo = 0;
|
737 |
|
|
return null_ptid;
|
738 |
|
|
}
|
739 |
|
|
|
740 |
|
|
sigemptyset (&set);
|
741 |
|
|
sigaddset (&set, SIGUSR1);
|
742 |
|
|
|
743 |
|
|
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
|
744 |
|
|
while (!(status.flags & _DEBUG_FLAG_ISTOP))
|
745 |
|
|
{
|
746 |
|
|
ofunc = (void (*)()) signal (SIGINT, nto_interrupt);
|
747 |
|
|
sigwaitinfo (&set, &info);
|
748 |
|
|
signal (SIGINT, ofunc);
|
749 |
|
|
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
|
750 |
|
|
}
|
751 |
|
|
|
752 |
|
|
if (status.flags & _DEBUG_FLAG_SSTEP)
|
753 |
|
|
{
|
754 |
|
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
755 |
|
|
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
|
756 |
|
|
}
|
757 |
|
|
/* Was it a breakpoint? */
|
758 |
|
|
else if (status.flags & _DEBUG_FLAG_TRACE)
|
759 |
|
|
{
|
760 |
|
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
761 |
|
|
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
|
762 |
|
|
}
|
763 |
|
|
else if (status.flags & _DEBUG_FLAG_ISTOP)
|
764 |
|
|
{
|
765 |
|
|
switch (status.why)
|
766 |
|
|
{
|
767 |
|
|
case _DEBUG_WHY_SIGNALLED:
|
768 |
|
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
769 |
|
|
ourstatus->value.sig =
|
770 |
|
|
target_signal_from_host (status.info.si_signo);
|
771 |
|
|
exit_signo = 0;
|
772 |
|
|
break;
|
773 |
|
|
case _DEBUG_WHY_FAULTED:
|
774 |
|
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
775 |
|
|
if (status.info.si_signo == SIGTRAP)
|
776 |
|
|
{
|
777 |
|
|
ourstatus->value.sig = 0;
|
778 |
|
|
exit_signo = 0;
|
779 |
|
|
}
|
780 |
|
|
else
|
781 |
|
|
{
|
782 |
|
|
ourstatus->value.sig =
|
783 |
|
|
target_signal_from_host (status.info.si_signo);
|
784 |
|
|
exit_signo = ourstatus->value.sig;
|
785 |
|
|
}
|
786 |
|
|
break;
|
787 |
|
|
|
788 |
|
|
case _DEBUG_WHY_TERMINATED:
|
789 |
|
|
{
|
790 |
|
|
int waitval = 0;
|
791 |
|
|
|
792 |
|
|
waitpid (PIDGET (inferior_ptid), &waitval, WNOHANG);
|
793 |
|
|
if (exit_signo)
|
794 |
|
|
{
|
795 |
|
|
/* Abnormal death. */
|
796 |
|
|
ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
|
797 |
|
|
ourstatus->value.sig = exit_signo;
|
798 |
|
|
}
|
799 |
|
|
else
|
800 |
|
|
{
|
801 |
|
|
/* Normal death. */
|
802 |
|
|
ourstatus->kind = TARGET_WAITKIND_EXITED;
|
803 |
|
|
ourstatus->value.integer = WEXITSTATUS (waitval);
|
804 |
|
|
}
|
805 |
|
|
exit_signo = 0;
|
806 |
|
|
break;
|
807 |
|
|
}
|
808 |
|
|
|
809 |
|
|
case _DEBUG_WHY_REQUESTED:
|
810 |
|
|
/* We are assuming a requested stop is due to a SIGINT. */
|
811 |
|
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
812 |
|
|
ourstatus->value.sig = TARGET_SIGNAL_INT;
|
813 |
|
|
exit_signo = 0;
|
814 |
|
|
break;
|
815 |
|
|
}
|
816 |
|
|
}
|
817 |
|
|
|
818 |
|
|
return ptid_build (status.pid, 0, status.tid);
|
819 |
|
|
}
|
820 |
|
|
|
821 |
|
|
/* Read the current values of the inferior's registers, both the
|
822 |
|
|
general register set and floating point registers (if supported)
|
823 |
|
|
and update gdb's idea of their current values. */
|
824 |
|
|
static void
|
825 |
|
|
procfs_fetch_registers (struct target_ops *ops,
|
826 |
|
|
struct regcache *regcache, int regno)
|
827 |
|
|
{
|
828 |
|
|
union
|
829 |
|
|
{
|
830 |
|
|
procfs_greg greg;
|
831 |
|
|
procfs_fpreg fpreg;
|
832 |
|
|
procfs_altreg altreg;
|
833 |
|
|
}
|
834 |
|
|
reg;
|
835 |
|
|
int regsize;
|
836 |
|
|
|
837 |
|
|
procfs_set_thread (inferior_ptid);
|
838 |
|
|
if (devctl (ctl_fd, DCMD_PROC_GETGREG, ®, sizeof (reg), ®size) == EOK)
|
839 |
|
|
nto_supply_gregset (regcache, (char *) ®.greg);
|
840 |
|
|
if (devctl (ctl_fd, DCMD_PROC_GETFPREG, ®, sizeof (reg), ®size)
|
841 |
|
|
== EOK)
|
842 |
|
|
nto_supply_fpregset (regcache, (char *) ®.fpreg);
|
843 |
|
|
if (devctl (ctl_fd, DCMD_PROC_GETALTREG, ®, sizeof (reg), ®size)
|
844 |
|
|
== EOK)
|
845 |
|
|
nto_supply_altregset (regcache, (char *) ®.altreg);
|
846 |
|
|
}
|
847 |
|
|
|
848 |
|
|
/* Copy LEN bytes to/from inferior's memory starting at MEMADDR
|
849 |
|
|
from/to debugger memory starting at MYADDR. Copy from inferior
|
850 |
|
|
if DOWRITE is zero or to inferior if DOWRITE is nonzero.
|
851 |
|
|
|
852 |
|
|
Returns the length copied, which is either the LEN argument or
|
853 |
|
|
zero. This xfer function does not do partial moves, since procfs_ops
|
854 |
|
|
doesn't allow memory operations to cross below us in the target stack
|
855 |
|
|
anyway. */
|
856 |
|
|
static int
|
857 |
|
|
procfs_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int dowrite,
|
858 |
|
|
struct mem_attrib *attrib, struct target_ops *target)
|
859 |
|
|
{
|
860 |
|
|
int nbytes = 0;
|
861 |
|
|
|
862 |
|
|
if (lseek (ctl_fd, (off_t) memaddr, SEEK_SET) == (off_t) memaddr)
|
863 |
|
|
{
|
864 |
|
|
if (dowrite)
|
865 |
|
|
nbytes = write (ctl_fd, myaddr, len);
|
866 |
|
|
else
|
867 |
|
|
nbytes = read (ctl_fd, myaddr, len);
|
868 |
|
|
if (nbytes < 0)
|
869 |
|
|
nbytes = 0;
|
870 |
|
|
}
|
871 |
|
|
return (nbytes);
|
872 |
|
|
}
|
873 |
|
|
|
874 |
|
|
/* Take a program previously attached to and detaches it.
|
875 |
|
|
The program resumes execution and will no longer stop
|
876 |
|
|
on signals, etc. We'd better not have left any breakpoints
|
877 |
|
|
in the program or it'll die when it hits one. */
|
878 |
|
|
static void
|
879 |
|
|
procfs_detach (struct target_ops *ops, char *args, int from_tty)
|
880 |
|
|
{
|
881 |
|
|
int siggnal = 0;
|
882 |
|
|
int pid;
|
883 |
|
|
|
884 |
|
|
if (from_tty)
|
885 |
|
|
{
|
886 |
|
|
char *exec_file = get_exec_file (0);
|
887 |
|
|
if (exec_file == 0)
|
888 |
|
|
exec_file = "";
|
889 |
|
|
printf_unfiltered ("Detaching from program: %s %s\n",
|
890 |
|
|
exec_file, target_pid_to_str (inferior_ptid));
|
891 |
|
|
gdb_flush (gdb_stdout);
|
892 |
|
|
}
|
893 |
|
|
if (args)
|
894 |
|
|
siggnal = atoi (args);
|
895 |
|
|
|
896 |
|
|
if (siggnal)
|
897 |
|
|
SignalKill (nto_node (), PIDGET (inferior_ptid), 0, siggnal, 0, 0);
|
898 |
|
|
|
899 |
|
|
close (ctl_fd);
|
900 |
|
|
ctl_fd = -1;
|
901 |
|
|
|
902 |
|
|
pid = ptid_get_pid (inferior_ptid);
|
903 |
|
|
inferior_ptid = null_ptid;
|
904 |
|
|
detach_inferior (pid);
|
905 |
|
|
init_thread_list ();
|
906 |
|
|
unpush_target (&procfs_ops); /* Pop out of handling an inferior. */
|
907 |
|
|
}
|
908 |
|
|
|
909 |
|
|
static int
|
910 |
|
|
procfs_breakpoint (CORE_ADDR addr, int type, int size)
|
911 |
|
|
{
|
912 |
|
|
procfs_break brk;
|
913 |
|
|
|
914 |
|
|
brk.type = type;
|
915 |
|
|
brk.addr = addr;
|
916 |
|
|
brk.size = size;
|
917 |
|
|
errno = devctl (ctl_fd, DCMD_PROC_BREAK, &brk, sizeof (brk), 0);
|
918 |
|
|
if (errno != EOK)
|
919 |
|
|
return 1;
|
920 |
|
|
return 0;
|
921 |
|
|
}
|
922 |
|
|
|
923 |
|
|
static int
|
924 |
|
|
procfs_insert_breakpoint (struct gdbarch *gdbarch,
|
925 |
|
|
struct bp_target_info *bp_tgt)
|
926 |
|
|
{
|
927 |
|
|
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, 0);
|
928 |
|
|
}
|
929 |
|
|
|
930 |
|
|
static int
|
931 |
|
|
procfs_remove_breakpoint (struct gdbarch *gdbarch,
|
932 |
|
|
struct bp_target_info *bp_tgt)
|
933 |
|
|
{
|
934 |
|
|
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, -1);
|
935 |
|
|
}
|
936 |
|
|
|
937 |
|
|
static int
|
938 |
|
|
procfs_insert_hw_breakpoint (struct gdbarch *gdbarch,
|
939 |
|
|
struct bp_target_info *bp_tgt)
|
940 |
|
|
{
|
941 |
|
|
return procfs_breakpoint (bp_tgt->placed_address,
|
942 |
|
|
_DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, 0);
|
943 |
|
|
}
|
944 |
|
|
|
945 |
|
|
static int
|
946 |
|
|
procfs_remove_hw_breakpoint (struct gdbarch *gdbarch,
|
947 |
|
|
struct bp_target_info *bp_tgt)
|
948 |
|
|
{
|
949 |
|
|
return procfs_breakpoint (bp_tgt->placed_address,
|
950 |
|
|
_DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, -1);
|
951 |
|
|
}
|
952 |
|
|
|
953 |
|
|
static void
|
954 |
|
|
procfs_resume (struct target_ops *ops,
|
955 |
|
|
ptid_t ptid, int step, enum target_signal signo)
|
956 |
|
|
{
|
957 |
|
|
int signal_to_pass;
|
958 |
|
|
procfs_status status;
|
959 |
|
|
sigset_t *run_fault = (sigset_t *) (void *) &run.fault;
|
960 |
|
|
|
961 |
|
|
if (ptid_equal (inferior_ptid, null_ptid))
|
962 |
|
|
return;
|
963 |
|
|
|
964 |
|
|
procfs_set_thread (ptid_equal (ptid, minus_one_ptid) ? inferior_ptid :
|
965 |
|
|
ptid);
|
966 |
|
|
|
967 |
|
|
run.flags = _DEBUG_RUN_FAULT | _DEBUG_RUN_TRACE;
|
968 |
|
|
if (step)
|
969 |
|
|
run.flags |= _DEBUG_RUN_STEP;
|
970 |
|
|
|
971 |
|
|
sigemptyset (run_fault);
|
972 |
|
|
sigaddset (run_fault, FLTBPT);
|
973 |
|
|
sigaddset (run_fault, FLTTRACE);
|
974 |
|
|
sigaddset (run_fault, FLTILL);
|
975 |
|
|
sigaddset (run_fault, FLTPRIV);
|
976 |
|
|
sigaddset (run_fault, FLTBOUNDS);
|
977 |
|
|
sigaddset (run_fault, FLTIOVF);
|
978 |
|
|
sigaddset (run_fault, FLTIZDIV);
|
979 |
|
|
sigaddset (run_fault, FLTFPE);
|
980 |
|
|
/* Peter V will be changing this at some point. */
|
981 |
|
|
sigaddset (run_fault, FLTPAGE);
|
982 |
|
|
|
983 |
|
|
run.flags |= _DEBUG_RUN_ARM;
|
984 |
|
|
|
985 |
|
|
sigemptyset (&run.trace);
|
986 |
|
|
notice_signals ();
|
987 |
|
|
signal_to_pass = target_signal_to_host (signo);
|
988 |
|
|
|
989 |
|
|
if (signal_to_pass)
|
990 |
|
|
{
|
991 |
|
|
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
|
992 |
|
|
signal_to_pass = target_signal_to_host (signo);
|
993 |
|
|
if (status.why & (_DEBUG_WHY_SIGNALLED | _DEBUG_WHY_FAULTED))
|
994 |
|
|
{
|
995 |
|
|
if (signal_to_pass != status.info.si_signo)
|
996 |
|
|
{
|
997 |
|
|
SignalKill (nto_node (), PIDGET (inferior_ptid), 0,
|
998 |
|
|
signal_to_pass, 0, 0);
|
999 |
|
|
run.flags |= _DEBUG_RUN_CLRFLT | _DEBUG_RUN_CLRSIG;
|
1000 |
|
|
}
|
1001 |
|
|
else /* Let it kill the program without telling us. */
|
1002 |
|
|
sigdelset (&run.trace, signal_to_pass);
|
1003 |
|
|
}
|
1004 |
|
|
}
|
1005 |
|
|
else
|
1006 |
|
|
run.flags |= _DEBUG_RUN_CLRSIG | _DEBUG_RUN_CLRFLT;
|
1007 |
|
|
|
1008 |
|
|
errno = devctl (ctl_fd, DCMD_PROC_RUN, &run, sizeof (run), 0);
|
1009 |
|
|
if (errno != EOK)
|
1010 |
|
|
{
|
1011 |
|
|
perror ("run error!\n");
|
1012 |
|
|
return;
|
1013 |
|
|
}
|
1014 |
|
|
}
|
1015 |
|
|
|
1016 |
|
|
static void
|
1017 |
|
|
procfs_mourn_inferior (struct target_ops *ops)
|
1018 |
|
|
{
|
1019 |
|
|
if (!ptid_equal (inferior_ptid, null_ptid))
|
1020 |
|
|
{
|
1021 |
|
|
SignalKill (nto_node (), PIDGET (inferior_ptid), 0, SIGKILL, 0, 0);
|
1022 |
|
|
close (ctl_fd);
|
1023 |
|
|
}
|
1024 |
|
|
inferior_ptid = null_ptid;
|
1025 |
|
|
init_thread_list ();
|
1026 |
|
|
unpush_target (&procfs_ops);
|
1027 |
|
|
generic_mourn_inferior ();
|
1028 |
|
|
}
|
1029 |
|
|
|
1030 |
|
|
/* This function breaks up an argument string into an argument
|
1031 |
|
|
vector suitable for passing to execvp().
|
1032 |
|
|
E.g., on "run a b c d" this routine would get as input
|
1033 |
|
|
the string "a b c d", and as output it would fill in argv with
|
1034 |
|
|
the four arguments "a", "b", "c", "d". The only additional
|
1035 |
|
|
functionality is simple quoting. The gdb command:
|
1036 |
|
|
run a "b c d" f
|
1037 |
|
|
will fill in argv with the three args "a", "b c d", "e". */
|
1038 |
|
|
static void
|
1039 |
|
|
breakup_args (char *scratch, char **argv)
|
1040 |
|
|
{
|
1041 |
|
|
char *pp, *cp = scratch;
|
1042 |
|
|
char quoting = 0;
|
1043 |
|
|
|
1044 |
|
|
for (;;)
|
1045 |
|
|
{
|
1046 |
|
|
/* Scan past leading separators. */
|
1047 |
|
|
quoting = 0;
|
1048 |
|
|
while (*cp == ' ' || *cp == '\t' || *cp == '\n')
|
1049 |
|
|
cp++;
|
1050 |
|
|
|
1051 |
|
|
/* Break if at end of string. */
|
1052 |
|
|
if (*cp == '\0')
|
1053 |
|
|
break;
|
1054 |
|
|
|
1055 |
|
|
/* Take an arg. */
|
1056 |
|
|
if (*cp == '"')
|
1057 |
|
|
{
|
1058 |
|
|
cp++;
|
1059 |
|
|
quoting = strchr (cp, '"') ? 1 : 0;
|
1060 |
|
|
}
|
1061 |
|
|
|
1062 |
|
|
*argv++ = cp;
|
1063 |
|
|
|
1064 |
|
|
/* Scan for next arg separator. */
|
1065 |
|
|
pp = cp;
|
1066 |
|
|
if (quoting)
|
1067 |
|
|
cp = strchr (pp, '"');
|
1068 |
|
|
if ((cp == NULL) || (!quoting))
|
1069 |
|
|
cp = strchr (pp, ' ');
|
1070 |
|
|
if (cp == NULL)
|
1071 |
|
|
cp = strchr (pp, '\t');
|
1072 |
|
|
if (cp == NULL)
|
1073 |
|
|
cp = strchr (pp, '\n');
|
1074 |
|
|
|
1075 |
|
|
/* No separators => end of string => break. */
|
1076 |
|
|
if (cp == NULL)
|
1077 |
|
|
{
|
1078 |
|
|
pp = cp;
|
1079 |
|
|
break;
|
1080 |
|
|
}
|
1081 |
|
|
|
1082 |
|
|
/* Replace the separator with a terminator. */
|
1083 |
|
|
*cp++ = '\0';
|
1084 |
|
|
}
|
1085 |
|
|
|
1086 |
|
|
/* Execv requires a null-terminated arg vector. */
|
1087 |
|
|
*argv = NULL;
|
1088 |
|
|
}
|
1089 |
|
|
|
1090 |
|
|
static void
|
1091 |
|
|
procfs_create_inferior (struct target_ops *ops, char *exec_file,
|
1092 |
|
|
char *allargs, char **env, int from_tty)
|
1093 |
|
|
{
|
1094 |
|
|
struct inheritance inherit;
|
1095 |
|
|
pid_t pid;
|
1096 |
|
|
int flags, errn;
|
1097 |
|
|
char **argv, *args;
|
1098 |
|
|
const char *in = "", *out = "", *err = "";
|
1099 |
|
|
int fd, fds[3];
|
1100 |
|
|
sigset_t set;
|
1101 |
|
|
const char *inferior_io_terminal = get_inferior_io_terminal ();
|
1102 |
|
|
struct inferior *inf;
|
1103 |
|
|
|
1104 |
|
|
argv = xmalloc (((strlen (allargs) + 1) / (unsigned) 2 + 2) *
|
1105 |
|
|
sizeof (*argv));
|
1106 |
|
|
argv[0] = get_exec_file (1);
|
1107 |
|
|
if (!argv[0])
|
1108 |
|
|
{
|
1109 |
|
|
if (exec_file)
|
1110 |
|
|
argv[0] = exec_file;
|
1111 |
|
|
else
|
1112 |
|
|
return;
|
1113 |
|
|
}
|
1114 |
|
|
|
1115 |
|
|
args = xstrdup (allargs);
|
1116 |
|
|
breakup_args (args, exec_file ? &argv[1] : &argv[0]);
|
1117 |
|
|
|
1118 |
|
|
argv = nto_parse_redirection (argv, &in, &out, &err);
|
1119 |
|
|
|
1120 |
|
|
fds[0] = STDIN_FILENO;
|
1121 |
|
|
fds[1] = STDOUT_FILENO;
|
1122 |
|
|
fds[2] = STDERR_FILENO;
|
1123 |
|
|
|
1124 |
|
|
/* If the user specified I/O via gdb's --tty= arg, use it, but only
|
1125 |
|
|
if the i/o is not also being specified via redirection. */
|
1126 |
|
|
if (inferior_io_terminal)
|
1127 |
|
|
{
|
1128 |
|
|
if (!in[0])
|
1129 |
|
|
in = inferior_io_terminal;
|
1130 |
|
|
if (!out[0])
|
1131 |
|
|
out = inferior_io_terminal;
|
1132 |
|
|
if (!err[0])
|
1133 |
|
|
err = inferior_io_terminal;
|
1134 |
|
|
}
|
1135 |
|
|
|
1136 |
|
|
if (in[0])
|
1137 |
|
|
{
|
1138 |
|
|
fd = open (in, O_RDONLY);
|
1139 |
|
|
if (fd == -1)
|
1140 |
|
|
perror (in);
|
1141 |
|
|
else
|
1142 |
|
|
fds[0] = fd;
|
1143 |
|
|
}
|
1144 |
|
|
if (out[0])
|
1145 |
|
|
{
|
1146 |
|
|
fd = open (out, O_WRONLY);
|
1147 |
|
|
if (fd == -1)
|
1148 |
|
|
perror (out);
|
1149 |
|
|
else
|
1150 |
|
|
fds[1] = fd;
|
1151 |
|
|
}
|
1152 |
|
|
if (err[0])
|
1153 |
|
|
{
|
1154 |
|
|
fd = open (err, O_WRONLY);
|
1155 |
|
|
if (fd == -1)
|
1156 |
|
|
perror (err);
|
1157 |
|
|
else
|
1158 |
|
|
fds[2] = fd;
|
1159 |
|
|
}
|
1160 |
|
|
|
1161 |
|
|
/* Clear any pending SIGUSR1's but keep the behavior the same. */
|
1162 |
|
|
signal (SIGUSR1, signal (SIGUSR1, SIG_IGN));
|
1163 |
|
|
|
1164 |
|
|
sigemptyset (&set);
|
1165 |
|
|
sigaddset (&set, SIGUSR1);
|
1166 |
|
|
sigprocmask (SIG_UNBLOCK, &set, NULL);
|
1167 |
|
|
|
1168 |
|
|
memset (&inherit, 0, sizeof (inherit));
|
1169 |
|
|
|
1170 |
|
|
if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) != 0)
|
1171 |
|
|
{
|
1172 |
|
|
inherit.nd = nto_node ();
|
1173 |
|
|
inherit.flags |= SPAWN_SETND;
|
1174 |
|
|
inherit.flags &= ~SPAWN_EXEC;
|
1175 |
|
|
}
|
1176 |
|
|
inherit.flags |= SPAWN_SETGROUP | SPAWN_HOLD;
|
1177 |
|
|
inherit.pgroup = SPAWN_NEWPGROUP;
|
1178 |
|
|
pid = spawnp (argv[0], 3, fds, &inherit, argv,
|
1179 |
|
|
ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0 ? env : 0);
|
1180 |
|
|
xfree (args);
|
1181 |
|
|
|
1182 |
|
|
sigprocmask (SIG_BLOCK, &set, NULL);
|
1183 |
|
|
|
1184 |
|
|
if (pid == -1)
|
1185 |
|
|
error (_("Error spawning %s: %d (%s)"), argv[0], errno,
|
1186 |
|
|
safe_strerror (errno));
|
1187 |
|
|
|
1188 |
|
|
if (fds[0] != STDIN_FILENO)
|
1189 |
|
|
close (fds[0]);
|
1190 |
|
|
if (fds[1] != STDOUT_FILENO)
|
1191 |
|
|
close (fds[1]);
|
1192 |
|
|
if (fds[2] != STDERR_FILENO)
|
1193 |
|
|
close (fds[2]);
|
1194 |
|
|
|
1195 |
|
|
inferior_ptid = do_attach (pid_to_ptid (pid));
|
1196 |
|
|
procfs_find_new_threads (ops);
|
1197 |
|
|
|
1198 |
|
|
inf = current_inferior ();
|
1199 |
|
|
inferior_appeared (inf, pid);
|
1200 |
|
|
inf->attach_flag = 0;
|
1201 |
|
|
|
1202 |
|
|
flags = _DEBUG_FLAG_KLC; /* Kill-on-Last-Close flag. */
|
1203 |
|
|
errn = devctl (ctl_fd, DCMD_PROC_SET_FLAG, &flags, sizeof (flags), 0);
|
1204 |
|
|
if (errn != EOK)
|
1205 |
|
|
{
|
1206 |
|
|
/* FIXME: expected warning? */
|
1207 |
|
|
/* warning( "Failed to set Kill-on-Last-Close flag: errno = %d(%s)\n",
|
1208 |
|
|
errn, strerror(errn) ); */
|
1209 |
|
|
}
|
1210 |
|
|
push_target (ops);
|
1211 |
|
|
target_terminal_init ();
|
1212 |
|
|
|
1213 |
|
|
if (exec_bfd != NULL
|
1214 |
|
|
|| (symfile_objfile != NULL && symfile_objfile->obfd != NULL))
|
1215 |
|
|
solib_create_inferior_hook (0);
|
1216 |
|
|
}
|
1217 |
|
|
|
1218 |
|
|
static void
|
1219 |
|
|
procfs_stop (ptid_t ptid)
|
1220 |
|
|
{
|
1221 |
|
|
devctl (ctl_fd, DCMD_PROC_STOP, NULL, 0, 0);
|
1222 |
|
|
}
|
1223 |
|
|
|
1224 |
|
|
static void
|
1225 |
|
|
procfs_kill_inferior (struct target_ops *ops)
|
1226 |
|
|
{
|
1227 |
|
|
target_mourn_inferior ();
|
1228 |
|
|
}
|
1229 |
|
|
|
1230 |
|
|
/* Store register REGNO, or all registers if REGNO == -1, from the contents
|
1231 |
|
|
of REGISTERS. */
|
1232 |
|
|
static void
|
1233 |
|
|
procfs_prepare_to_store (struct regcache *regcache)
|
1234 |
|
|
{
|
1235 |
|
|
}
|
1236 |
|
|
|
1237 |
|
|
/* Fill buf with regset and return devctl cmd to do the setting. Return
|
1238 |
|
|
-1 if we fail to get the regset. Store size of regset in regsize. */
|
1239 |
|
|
static int
|
1240 |
|
|
get_regset (int regset, char *buf, int bufsize, int *regsize)
|
1241 |
|
|
{
|
1242 |
|
|
int dev_get, dev_set;
|
1243 |
|
|
switch (regset)
|
1244 |
|
|
{
|
1245 |
|
|
case NTO_REG_GENERAL:
|
1246 |
|
|
dev_get = DCMD_PROC_GETGREG;
|
1247 |
|
|
dev_set = DCMD_PROC_SETGREG;
|
1248 |
|
|
break;
|
1249 |
|
|
|
1250 |
|
|
case NTO_REG_FLOAT:
|
1251 |
|
|
dev_get = DCMD_PROC_GETFPREG;
|
1252 |
|
|
dev_set = DCMD_PROC_SETFPREG;
|
1253 |
|
|
break;
|
1254 |
|
|
|
1255 |
|
|
case NTO_REG_ALT:
|
1256 |
|
|
dev_get = DCMD_PROC_GETALTREG;
|
1257 |
|
|
dev_set = DCMD_PROC_SETALTREG;
|
1258 |
|
|
break;
|
1259 |
|
|
|
1260 |
|
|
case NTO_REG_SYSTEM:
|
1261 |
|
|
default:
|
1262 |
|
|
return -1;
|
1263 |
|
|
}
|
1264 |
|
|
if (devctl (ctl_fd, dev_get, buf, bufsize, regsize) != EOK)
|
1265 |
|
|
return -1;
|
1266 |
|
|
|
1267 |
|
|
return dev_set;
|
1268 |
|
|
}
|
1269 |
|
|
|
1270 |
|
|
void
|
1271 |
|
|
procfs_store_registers (struct target_ops *ops,
|
1272 |
|
|
struct regcache *regcache, int regno)
|
1273 |
|
|
{
|
1274 |
|
|
union
|
1275 |
|
|
{
|
1276 |
|
|
procfs_greg greg;
|
1277 |
|
|
procfs_fpreg fpreg;
|
1278 |
|
|
procfs_altreg altreg;
|
1279 |
|
|
}
|
1280 |
|
|
reg;
|
1281 |
|
|
unsigned off;
|
1282 |
|
|
int len, regset, regsize, dev_set, err;
|
1283 |
|
|
char *data;
|
1284 |
|
|
|
1285 |
|
|
if (ptid_equal (inferior_ptid, null_ptid))
|
1286 |
|
|
return;
|
1287 |
|
|
procfs_set_thread (inferior_ptid);
|
1288 |
|
|
|
1289 |
|
|
if (regno == -1)
|
1290 |
|
|
{
|
1291 |
|
|
for (regset = NTO_REG_GENERAL; regset < NTO_REG_END; regset++)
|
1292 |
|
|
{
|
1293 |
|
|
dev_set = get_regset (regset, (char *) ®,
|
1294 |
|
|
sizeof (reg), ®size);
|
1295 |
|
|
if (dev_set == -1)
|
1296 |
|
|
continue;
|
1297 |
|
|
|
1298 |
|
|
if (nto_regset_fill (regcache, regset, (char *) ®) == -1)
|
1299 |
|
|
continue;
|
1300 |
|
|
|
1301 |
|
|
err = devctl (ctl_fd, dev_set, ®, regsize, 0);
|
1302 |
|
|
if (err != EOK)
|
1303 |
|
|
fprintf_unfiltered (gdb_stderr,
|
1304 |
|
|
"Warning unable to write regset %d: %s\n",
|
1305 |
|
|
regno, safe_strerror (err));
|
1306 |
|
|
}
|
1307 |
|
|
}
|
1308 |
|
|
else
|
1309 |
|
|
{
|
1310 |
|
|
regset = nto_regset_id (regno);
|
1311 |
|
|
if (regset == -1)
|
1312 |
|
|
return;
|
1313 |
|
|
|
1314 |
|
|
dev_set = get_regset (regset, (char *) ®, sizeof (reg), ®size);
|
1315 |
|
|
if (dev_set == -1)
|
1316 |
|
|
return;
|
1317 |
|
|
|
1318 |
|
|
len = nto_register_area (get_regcache_arch (regcache),
|
1319 |
|
|
regno, regset, &off);
|
1320 |
|
|
|
1321 |
|
|
if (len < 1)
|
1322 |
|
|
return;
|
1323 |
|
|
|
1324 |
|
|
regcache_raw_collect (regcache, regno, (char *) ® + off);
|
1325 |
|
|
|
1326 |
|
|
err = devctl (ctl_fd, dev_set, ®, regsize, 0);
|
1327 |
|
|
if (err != EOK)
|
1328 |
|
|
fprintf_unfiltered (gdb_stderr,
|
1329 |
|
|
"Warning unable to write regset %d: %s\n", regno,
|
1330 |
|
|
safe_strerror (err));
|
1331 |
|
|
}
|
1332 |
|
|
}
|
1333 |
|
|
|
1334 |
|
|
static void
|
1335 |
|
|
notice_signals (void)
|
1336 |
|
|
{
|
1337 |
|
|
int signo;
|
1338 |
|
|
|
1339 |
|
|
for (signo = 1; signo < NSIG; signo++)
|
1340 |
|
|
{
|
1341 |
|
|
if (signal_stop_state (target_signal_from_host (signo)) == 0
|
1342 |
|
|
&& signal_print_state (target_signal_from_host (signo)) == 0
|
1343 |
|
|
&& signal_pass_state (target_signal_from_host (signo)) == 1)
|
1344 |
|
|
sigdelset (&run.trace, signo);
|
1345 |
|
|
else
|
1346 |
|
|
sigaddset (&run.trace, signo);
|
1347 |
|
|
}
|
1348 |
|
|
}
|
1349 |
|
|
|
1350 |
|
|
/* When the user changes the state of gdb's signal handling via the
|
1351 |
|
|
"handle" command, this function gets called to see if any change
|
1352 |
|
|
in the /proc interface is required. It is also called internally
|
1353 |
|
|
by other /proc interface functions to initialize the state of
|
1354 |
|
|
the traced signal set. */
|
1355 |
|
|
static void
|
1356 |
|
|
procfs_notice_signals (ptid_t ptid)
|
1357 |
|
|
{
|
1358 |
|
|
sigemptyset (&run.trace);
|
1359 |
|
|
notice_signals ();
|
1360 |
|
|
}
|
1361 |
|
|
|
1362 |
|
|
static struct tidinfo *
|
1363 |
|
|
procfs_thread_info (pid_t pid, short tid)
|
1364 |
|
|
{
|
1365 |
|
|
/* NYI */
|
1366 |
|
|
return NULL;
|
1367 |
|
|
}
|
1368 |
|
|
|
1369 |
|
|
char *
|
1370 |
|
|
procfs_pid_to_str (struct target_ops *ops, ptid_t ptid)
|
1371 |
|
|
{
|
1372 |
|
|
static char buf[1024];
|
1373 |
|
|
int pid, tid, n;
|
1374 |
|
|
struct tidinfo *tip;
|
1375 |
|
|
|
1376 |
|
|
pid = ptid_get_pid (ptid);
|
1377 |
|
|
tid = ptid_get_tid (ptid);
|
1378 |
|
|
|
1379 |
|
|
n = snprintf (buf, 1023, "process %d", pid);
|
1380 |
|
|
|
1381 |
|
|
#if 0 /* NYI */
|
1382 |
|
|
tip = procfs_thread_info (pid, tid);
|
1383 |
|
|
if (tip != NULL)
|
1384 |
|
|
snprintf (&buf[n], 1023, " (state = 0x%02x)", tip->state);
|
1385 |
|
|
#endif
|
1386 |
|
|
|
1387 |
|
|
return buf;
|
1388 |
|
|
}
|
1389 |
|
|
|
1390 |
|
|
static void
|
1391 |
|
|
init_procfs_ops (void)
|
1392 |
|
|
{
|
1393 |
|
|
procfs_ops.to_shortname = "procfs";
|
1394 |
|
|
procfs_ops.to_longname = "QNX Neutrino procfs child process";
|
1395 |
|
|
procfs_ops.to_doc =
|
1396 |
|
|
"QNX Neutrino procfs child process (started by the \"run\" command).\n\
|
1397 |
|
|
target procfs <node>";
|
1398 |
|
|
procfs_ops.to_open = procfs_open;
|
1399 |
|
|
procfs_ops.to_attach = procfs_attach;
|
1400 |
|
|
procfs_ops.to_post_attach = procfs_post_attach;
|
1401 |
|
|
procfs_ops.to_detach = procfs_detach;
|
1402 |
|
|
procfs_ops.to_resume = procfs_resume;
|
1403 |
|
|
procfs_ops.to_wait = procfs_wait;
|
1404 |
|
|
procfs_ops.to_fetch_registers = procfs_fetch_registers;
|
1405 |
|
|
procfs_ops.to_store_registers = procfs_store_registers;
|
1406 |
|
|
procfs_ops.to_prepare_to_store = procfs_prepare_to_store;
|
1407 |
|
|
procfs_ops.deprecated_xfer_memory = procfs_xfer_memory;
|
1408 |
|
|
procfs_ops.to_files_info = procfs_files_info;
|
1409 |
|
|
procfs_ops.to_insert_breakpoint = procfs_insert_breakpoint;
|
1410 |
|
|
procfs_ops.to_remove_breakpoint = procfs_remove_breakpoint;
|
1411 |
|
|
procfs_ops.to_can_use_hw_breakpoint = procfs_can_use_hw_breakpoint;
|
1412 |
|
|
procfs_ops.to_insert_hw_breakpoint = procfs_insert_hw_breakpoint;
|
1413 |
|
|
procfs_ops.to_remove_hw_breakpoint = procfs_remove_breakpoint;
|
1414 |
|
|
procfs_ops.to_insert_watchpoint = procfs_insert_hw_watchpoint;
|
1415 |
|
|
procfs_ops.to_remove_watchpoint = procfs_remove_hw_watchpoint;
|
1416 |
|
|
procfs_ops.to_stopped_by_watchpoint = procfs_stopped_by_watchpoint;
|
1417 |
|
|
procfs_ops.to_terminal_init = terminal_init_inferior;
|
1418 |
|
|
procfs_ops.to_terminal_inferior = terminal_inferior;
|
1419 |
|
|
procfs_ops.to_terminal_ours_for_output = terminal_ours_for_output;
|
1420 |
|
|
procfs_ops.to_terminal_ours = terminal_ours;
|
1421 |
|
|
procfs_ops.to_terminal_info = child_terminal_info;
|
1422 |
|
|
procfs_ops.to_kill = procfs_kill_inferior;
|
1423 |
|
|
procfs_ops.to_create_inferior = procfs_create_inferior;
|
1424 |
|
|
procfs_ops.to_mourn_inferior = procfs_mourn_inferior;
|
1425 |
|
|
procfs_ops.to_can_run = procfs_can_run;
|
1426 |
|
|
procfs_ops.to_notice_signals = procfs_notice_signals;
|
1427 |
|
|
procfs_ops.to_thread_alive = procfs_thread_alive;
|
1428 |
|
|
procfs_ops.to_find_new_threads = procfs_find_new_threads;
|
1429 |
|
|
procfs_ops.to_pid_to_str = procfs_pid_to_str;
|
1430 |
|
|
procfs_ops.to_stop = procfs_stop;
|
1431 |
|
|
procfs_ops.to_stratum = process_stratum;
|
1432 |
|
|
procfs_ops.to_has_all_memory = default_child_has_all_memory;
|
1433 |
|
|
procfs_ops.to_has_memory = default_child_has_memory;
|
1434 |
|
|
procfs_ops.to_has_stack = default_child_has_stack;
|
1435 |
|
|
procfs_ops.to_has_registers = default_child_has_registers;
|
1436 |
|
|
procfs_ops.to_has_execution = default_child_has_execution;
|
1437 |
|
|
procfs_ops.to_magic = OPS_MAGIC;
|
1438 |
|
|
procfs_ops.to_have_continuable_watchpoint = 1;
|
1439 |
|
|
procfs_ops.to_extra_thread_info = nto_extra_thread_info;
|
1440 |
|
|
}
|
1441 |
|
|
|
1442 |
|
|
#define OSTYPE_NTO 1
|
1443 |
|
|
|
1444 |
|
|
void
|
1445 |
|
|
_initialize_procfs (void)
|
1446 |
|
|
{
|
1447 |
|
|
sigset_t set;
|
1448 |
|
|
|
1449 |
|
|
init_procfs_ops ();
|
1450 |
|
|
add_target (&procfs_ops);
|
1451 |
|
|
|
1452 |
|
|
/* We use SIGUSR1 to gain control after we block waiting for a process.
|
1453 |
|
|
We use sigwaitevent to wait. */
|
1454 |
|
|
sigemptyset (&set);
|
1455 |
|
|
sigaddset (&set, SIGUSR1);
|
1456 |
|
|
sigprocmask (SIG_BLOCK, &set, NULL);
|
1457 |
|
|
|
1458 |
|
|
/* Set up trace and fault sets, as gdb expects them. */
|
1459 |
|
|
sigemptyset (&run.trace);
|
1460 |
|
|
|
1461 |
|
|
/* Stuff some information. */
|
1462 |
|
|
nto_cpuinfo_flags = SYSPAGE_ENTRY (cpuinfo)->flags;
|
1463 |
|
|
nto_cpuinfo_valid = 1;
|
1464 |
|
|
|
1465 |
|
|
add_info ("pidlist", procfs_pidlist, _("pidlist"));
|
1466 |
|
|
add_info ("meminfo", procfs_meminfo, _("memory information"));
|
1467 |
|
|
|
1468 |
|
|
nto_is_nto_target = procfs_is_nto_target;
|
1469 |
|
|
}
|
1470 |
|
|
|
1471 |
|
|
|
1472 |
|
|
static int
|
1473 |
|
|
procfs_hw_watchpoint (int addr, int len, int type)
|
1474 |
|
|
{
|
1475 |
|
|
procfs_break brk;
|
1476 |
|
|
|
1477 |
|
|
switch (type)
|
1478 |
|
|
{
|
1479 |
|
|
case 1: /* Read. */
|
1480 |
|
|
brk.type = _DEBUG_BREAK_RD;
|
1481 |
|
|
break;
|
1482 |
|
|
case 2: /* Read/Write. */
|
1483 |
|
|
brk.type = _DEBUG_BREAK_RW;
|
1484 |
|
|
break;
|
1485 |
|
|
default: /* Modify. */
|
1486 |
|
|
/* FIXME: brk.type = _DEBUG_BREAK_RWM gives EINVAL for some reason. */
|
1487 |
|
|
brk.type = _DEBUG_BREAK_RW;
|
1488 |
|
|
}
|
1489 |
|
|
brk.type |= _DEBUG_BREAK_HW; /* Always ask for HW. */
|
1490 |
|
|
brk.addr = addr;
|
1491 |
|
|
brk.size = len;
|
1492 |
|
|
|
1493 |
|
|
errno = devctl (ctl_fd, DCMD_PROC_BREAK, &brk, sizeof (brk), 0);
|
1494 |
|
|
if (errno != EOK)
|
1495 |
|
|
{
|
1496 |
|
|
perror ("Failed to set hardware watchpoint");
|
1497 |
|
|
return -1;
|
1498 |
|
|
}
|
1499 |
|
|
return 0;
|
1500 |
|
|
}
|
1501 |
|
|
|
1502 |
|
|
static int
|
1503 |
|
|
procfs_can_use_hw_breakpoint (int type, int cnt, int othertype)
|
1504 |
|
|
{
|
1505 |
|
|
return 1;
|
1506 |
|
|
}
|
1507 |
|
|
|
1508 |
|
|
static int
|
1509 |
|
|
procfs_remove_hw_watchpoint (CORE_ADDR addr, int len, int type,
|
1510 |
|
|
struct expression *cond)
|
1511 |
|
|
{
|
1512 |
|
|
return procfs_hw_watchpoint (addr, -1, type);
|
1513 |
|
|
}
|
1514 |
|
|
|
1515 |
|
|
static int
|
1516 |
|
|
procfs_insert_hw_watchpoint (CORE_ADDR addr, int len, int type,
|
1517 |
|
|
struct expression *cond)
|
1518 |
|
|
{
|
1519 |
|
|
return procfs_hw_watchpoint (addr, len, type);
|
1520 |
|
|
}
|
1521 |
|
|
|
1522 |
|
|
static int
|
1523 |
|
|
procfs_stopped_by_watchpoint (void)
|
1524 |
|
|
{
|
1525 |
|
|
return 0;
|
1526 |
|
|
}
|