/* Machine independent support for QNX Neutrino /proc (process file system)
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/* 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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for GDB. Written by Colin Burgess at QNX Software Systems Limited.
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Copyright (C) 2003, 2006, 2007, 2008 Free Software Foundation, Inc.
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Copyright (C) 2003, 2006, 2007, 2008 Free Software Foundation, Inc.
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Contributed by QNX Software Systems Ltd.
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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 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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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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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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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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(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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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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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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "defs.h"
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#include <fcntl.h>
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#include <fcntl.h>
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#include <spawn.h>
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#include <spawn.h>
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#include <sys/debug.h>
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#include <sys/debug.h>
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#include <sys/procfs.h>
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#include <sys/procfs.h>
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#include <sys/neutrino.h>
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#include <sys/neutrino.h>
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#include <sys/syspage.h>
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#include <sys/syspage.h>
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#include "gdb_dirent.h"
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#include "gdb_dirent.h"
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#include <sys/netmgr.h>
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#include <sys/netmgr.h>
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#include "exceptions.h"
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#include "exceptions.h"
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#include "gdb_string.h"
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#include "gdb_string.h"
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#include "gdbcore.h"
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#include "gdbcore.h"
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#include "inferior.h"
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#include "inferior.h"
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#include "target.h"
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#include "target.h"
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#include "objfiles.h"
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#include "objfiles.h"
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#include "gdbthread.h"
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#include "gdbthread.h"
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#include "nto-tdep.h"
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#include "nto-tdep.h"
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#include "command.h"
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#include "command.h"
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#include "regcache.h"
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#include "regcache.h"
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#include "solib.h"
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#include "solib.h"
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#define NULL_PID 0
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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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#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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_DEBUG_FLAG_TRACE_WR|_DEBUG_FLAG_TRACE_MODIFY)
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static struct target_ops procfs_ops;
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static struct target_ops procfs_ops;
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int ctl_fd;
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int ctl_fd;
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static void (*ofunc) ();
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static void (*ofunc) ();
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static procfs_run run;
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static procfs_run run;
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static void procfs_open (char *, int);
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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_can_run (void);
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static ptid_t procfs_wait (ptid_t, struct target_waitstatus *);
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static ptid_t procfs_wait (ptid_t, struct target_waitstatus *);
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static int procfs_xfer_memory (CORE_ADDR, char *, int, int,
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static int procfs_xfer_memory (CORE_ADDR, char *, int, int,
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struct mem_attrib *attrib,
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struct mem_attrib *attrib,
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struct target_ops *);
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struct target_ops *);
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static void procfs_fetch_registers (struct regcache *, int);
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static void procfs_fetch_registers (struct regcache *, int);
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static void notice_signals (void);
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static void notice_signals (void);
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static void init_procfs_ops (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 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_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_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_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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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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/* 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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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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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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for the remote QNX node. */
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static char nto_procfs_path[PATH_MAX] = { "/proc" };
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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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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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/* 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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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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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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we have to re-acquire them every time. */
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static unsigned
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static unsigned
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nto_node (void)
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nto_node (void)
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{
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{
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unsigned node;
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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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if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0)
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return ND_LOCAL_NODE;
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return ND_LOCAL_NODE;
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node = netmgr_strtond (nto_procfs_path, 0);
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node = netmgr_strtond (nto_procfs_path, 0);
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if (node == -1)
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if (node == -1)
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error (_("Lost the QNX node. Debug session probably over."));
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error (_("Lost the QNX node. Debug session probably over."));
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return (node);
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return (node);
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}
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}
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static enum gdb_osabi
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static enum gdb_osabi
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procfs_is_nto_target (bfd *abfd)
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procfs_is_nto_target (bfd *abfd)
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{
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{
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return GDB_OSABI_QNXNTO;
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return GDB_OSABI_QNXNTO;
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}
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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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/* 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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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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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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default to local. */
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static void
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static void
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procfs_open (char *arg, int from_tty)
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procfs_open (char *arg, int from_tty)
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{
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{
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char *nodestr;
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char *nodestr;
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char *endstr;
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char *endstr;
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char buffer[50];
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char buffer[50];
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int fd, total_size;
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int fd, total_size;
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procfs_sysinfo *sysinfo;
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procfs_sysinfo *sysinfo;
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nto_is_nto_target = procfs_is_nto_target;
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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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/* 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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and only override it if there is a valid arg. */
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nto_procfs_node = ND_LOCAL_NODE;
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nto_procfs_node = ND_LOCAL_NODE;
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nodestr = arg ? xstrdup (arg) : arg;
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nodestr = arg ? xstrdup (arg) : arg;
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init_thread_list ();
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init_thread_list ();
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if (nodestr)
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if (nodestr)
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{
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{
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nto_procfs_node = netmgr_strtond (nodestr, &endstr);
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nto_procfs_node = netmgr_strtond (nodestr, &endstr);
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if (nto_procfs_node == -1)
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if (nto_procfs_node == -1)
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{
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{
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if (errno == ENOTSUP)
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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 ("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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printf_filtered ("Invalid QNX node %s: error %d (%s).\n", nodestr,
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errno, safe_strerror (errno));
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errno, safe_strerror (errno));
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xfree (nodestr);
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xfree (nodestr);
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nodestr = NULL;
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nodestr = NULL;
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nto_procfs_node = ND_LOCAL_NODE;
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nto_procfs_node = ND_LOCAL_NODE;
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}
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}
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else if (*endstr)
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else if (*endstr)
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{
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{
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if (*(endstr - 1) == '/')
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if (*(endstr - 1) == '/')
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*(endstr - 1) = 0;
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*(endstr - 1) = 0;
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else
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else
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*endstr = 0;
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*endstr = 0;
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}
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}
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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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snprintf (nto_procfs_path, PATH_MAX - 1, "%s%s", nodestr ? nodestr : "",
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"/proc");
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"/proc");
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if (nodestr)
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if (nodestr)
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xfree (nodestr);
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xfree (nodestr);
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fd = open (nto_procfs_path, O_RDONLY);
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fd = open (nto_procfs_path, O_RDONLY);
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if (fd == -1)
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if (fd == -1)
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{
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{
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printf_filtered ("Error opening %s : %d (%s)\n", nto_procfs_path, errno,
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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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safe_strerror (errno));
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error (_("Invalid procfs arg"));
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error (_("Invalid procfs arg"));
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}
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}
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sysinfo = (void *) buffer;
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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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if (devctl (fd, DCMD_PROC_SYSINFO, sysinfo, sizeof buffer, 0) != EOK)
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{
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{
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printf_filtered ("Error getting size: %d (%s)\n", errno,
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printf_filtered ("Error getting size: %d (%s)\n", errno,
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safe_strerror (errno));
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safe_strerror (errno));
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close (fd);
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close (fd);
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error (_("Devctl failed."));
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error (_("Devctl failed."));
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}
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}
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else
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else
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{
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{
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total_size = sysinfo->total_size;
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total_size = sysinfo->total_size;
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sysinfo = alloca (total_size);
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sysinfo = alloca (total_size);
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if (!sysinfo)
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if (!sysinfo)
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{
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{
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printf_filtered ("Memory error: %d (%s)\n", errno,
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printf_filtered ("Memory error: %d (%s)\n", errno,
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safe_strerror (errno));
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safe_strerror (errno));
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close (fd);
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close (fd);
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error (_("alloca failed."));
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error (_("alloca failed."));
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}
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}
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else
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else
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{
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{
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if (devctl (fd, DCMD_PROC_SYSINFO, sysinfo, total_size, 0) != EOK)
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if (devctl (fd, DCMD_PROC_SYSINFO, sysinfo, total_size, 0) != EOK)
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{
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{
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printf_filtered ("Error getting sysinfo: %d (%s)\n", errno,
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printf_filtered ("Error getting sysinfo: %d (%s)\n", errno,
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safe_strerror (errno));
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safe_strerror (errno));
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close (fd);
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close (fd);
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error (_("Devctl failed."));
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error (_("Devctl failed."));
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}
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}
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else
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else
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{
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{
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if (sysinfo->type !=
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if (sysinfo->type !=
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nto_map_arch_to_cputype (gdbarch_bfd_arch_info
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nto_map_arch_to_cputype (gdbarch_bfd_arch_info
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(current_gdbarch)->arch_name))
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(current_gdbarch)->arch_name))
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{
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{
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close (fd);
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close (fd);
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error (_("Invalid target CPU."));
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error (_("Invalid target CPU."));
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}
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}
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}
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}
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}
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}
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}
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}
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close (fd);
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close (fd);
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printf_filtered ("Debugging using %s\n", nto_procfs_path);
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printf_filtered ("Debugging using %s\n", nto_procfs_path);
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}
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}
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static void
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static void
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procfs_set_thread (ptid_t ptid)
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procfs_set_thread (ptid_t ptid)
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{
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{
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pid_t tid;
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pid_t tid;
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tid = ptid_get_tid (ptid);
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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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devctl (ctl_fd, DCMD_PROC_CURTHREAD, &tid, sizeof (tid), 0);
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}
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}
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/* Return nonzero if the thread TH is still alive. */
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/* Return nonzero if the thread TH is still alive. */
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static int
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static int
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procfs_thread_alive (ptid_t ptid)
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procfs_thread_alive (ptid_t ptid)
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{
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{
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pid_t tid;
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pid_t tid;
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|
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tid = ptid_get_tid (ptid);
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tid = ptid_get_tid (ptid);
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if (devctl (ctl_fd, DCMD_PROC_CURTHREAD, &tid, sizeof (tid), 0) == EOK)
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if (devctl (ctl_fd, DCMD_PROC_CURTHREAD, &tid, sizeof (tid), 0) == EOK)
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return 1;
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return 1;
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return 0;
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return 0;
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}
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}
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void
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void
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procfs_find_new_threads (void)
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procfs_find_new_threads (void)
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{
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{
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procfs_status status;
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procfs_status status;
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pid_t pid;
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pid_t pid;
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ptid_t ptid;
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ptid_t ptid;
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|
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if (ctl_fd == -1)
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if (ctl_fd == -1)
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return;
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return;
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pid = ptid_get_pid (inferior_ptid);
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pid = ptid_get_pid (inferior_ptid);
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|
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for (status.tid = 1;; ++status.tid)
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for (status.tid = 1;; ++status.tid)
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{
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{
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if (devctl (ctl_fd, DCMD_PROC_TIDSTATUS, &status, sizeof (status), 0)
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if (devctl (ctl_fd, DCMD_PROC_TIDSTATUS, &status, sizeof (status), 0)
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!= EOK && status.tid != 0)
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!= EOK && status.tid != 0)
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break;
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break;
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ptid = ptid_build (pid, 0, status.tid);
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ptid = ptid_build (pid, 0, status.tid);
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if (!in_thread_list (ptid))
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if (!in_thread_list (ptid))
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add_thread (ptid);
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add_thread (ptid);
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}
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}
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return;
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return;
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}
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}
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|
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void
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void
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procfs_pidlist (char *args, int from_tty)
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procfs_pidlist (char *args, int from_tty)
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{
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{
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DIR *dp = NULL;
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DIR *dp = NULL;
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struct dirent *dirp = NULL;
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struct dirent *dirp = NULL;
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int fd = -1;
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int fd = -1;
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char buf[512];
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char buf[512];
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procfs_info *pidinfo = NULL;
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procfs_info *pidinfo = NULL;
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procfs_debuginfo *info = NULL;
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procfs_debuginfo *info = NULL;
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procfs_status *status = NULL;
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procfs_status *status = NULL;
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pid_t num_threads = 0;
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pid_t num_threads = 0;
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pid_t pid;
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pid_t pid;
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char name[512];
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char name[512];
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|
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dp = opendir (nto_procfs_path);
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dp = opendir (nto_procfs_path);
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if (dp == NULL)
|
if (dp == NULL)
|
{
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{
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fprintf_unfiltered (gdb_stderr, "failed to opendir \"%s\" - %d (%s)",
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fprintf_unfiltered (gdb_stderr, "failed to opendir \"%s\" - %d (%s)",
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nto_procfs_path, errno, safe_strerror (errno));
|
nto_procfs_path, errno, safe_strerror (errno));
|
return;
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return;
|
}
|
}
|
|
|
/* Start scan at first pid. */
|
/* Start scan at first pid. */
|
rewinddir (dp);
|
rewinddir (dp);
|
|
|
do
|
do
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{
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{
|
/* Get the right pid and procfs path for the pid. */
|
/* Get the right pid and procfs path for the pid. */
|
do
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do
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{
|
{
|
dirp = readdir (dp);
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dirp = readdir (dp);
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if (dirp == NULL)
|
if (dirp == NULL)
|
{
|
{
|
closedir (dp);
|
closedir (dp);
|
return;
|
return;
|
}
|
}
|
snprintf (buf, 511, "%s/%s/as", nto_procfs_path, dirp->d_name);
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snprintf (buf, 511, "%s/%s/as", nto_procfs_path, dirp->d_name);
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pid = atoi (dirp->d_name);
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pid = atoi (dirp->d_name);
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}
|
}
|
while (pid == 0);
|
while (pid == 0);
|
|
|
/* Open the procfs path. */
|
/* Open the procfs path. */
|
fd = open (buf, O_RDONLY);
|
fd = open (buf, O_RDONLY);
|
if (fd == -1)
|
if (fd == -1)
|
{
|
{
|
fprintf_unfiltered (gdb_stderr, "failed to open %s - %d (%s)\n",
|
fprintf_unfiltered (gdb_stderr, "failed to open %s - %d (%s)\n",
|
buf, errno, safe_strerror (errno));
|
buf, errno, safe_strerror (errno));
|
closedir (dp);
|
closedir (dp);
|
return;
|
return;
|
}
|
}
|
|
|
pidinfo = (procfs_info *) buf;
|
pidinfo = (procfs_info *) buf;
|
if (devctl (fd, DCMD_PROC_INFO, pidinfo, sizeof (buf), 0) != EOK)
|
if (devctl (fd, DCMD_PROC_INFO, pidinfo, sizeof (buf), 0) != EOK)
|
{
|
{
|
fprintf_unfiltered (gdb_stderr,
|
fprintf_unfiltered (gdb_stderr,
|
"devctl DCMD_PROC_INFO failed - %d (%s)\n",
|
"devctl DCMD_PROC_INFO failed - %d (%s)\n",
|
errno, safe_strerror (errno));
|
errno, safe_strerror (errno));
|
break;
|
break;
|
}
|
}
|
num_threads = pidinfo->num_threads;
|
num_threads = pidinfo->num_threads;
|
|
|
info = (procfs_debuginfo *) buf;
|
info = (procfs_debuginfo *) buf;
|
if (devctl (fd, DCMD_PROC_MAPDEBUG_BASE, info, sizeof (buf), 0) != EOK)
|
if (devctl (fd, DCMD_PROC_MAPDEBUG_BASE, info, sizeof (buf), 0) != EOK)
|
strcpy (name, "unavailable");
|
strcpy (name, "unavailable");
|
else
|
else
|
strcpy (name, info->path);
|
strcpy (name, info->path);
|
|
|
/* Collect state info on all the threads. */
|
/* Collect state info on all the threads. */
|
status = (procfs_status *) buf;
|
status = (procfs_status *) buf;
|
for (status->tid = 1; status->tid <= num_threads; status->tid++)
|
for (status->tid = 1; status->tid <= num_threads; status->tid++)
|
{
|
{
|
if (devctl (fd, DCMD_PROC_TIDSTATUS, status, sizeof (buf), 0) != EOK
|
if (devctl (fd, DCMD_PROC_TIDSTATUS, status, sizeof (buf), 0) != EOK
|
&& status->tid != 0)
|
&& status->tid != 0)
|
break;
|
break;
|
if (status->tid != 0)
|
if (status->tid != 0)
|
printf_filtered ("%s - %d/%d\n", name, pid, status->tid);
|
printf_filtered ("%s - %d/%d\n", name, pid, status->tid);
|
}
|
}
|
close (fd);
|
close (fd);
|
}
|
}
|
while (dirp != NULL);
|
while (dirp != NULL);
|
|
|
close (fd);
|
close (fd);
|
closedir (dp);
|
closedir (dp);
|
return;
|
return;
|
}
|
}
|
|
|
void
|
void
|
procfs_meminfo (char *args, int from_tty)
|
procfs_meminfo (char *args, int from_tty)
|
{
|
{
|
procfs_mapinfo *mapinfos = NULL;
|
procfs_mapinfo *mapinfos = NULL;
|
static int num_mapinfos = 0;
|
static int num_mapinfos = 0;
|
procfs_mapinfo *mapinfo_p, *mapinfo_p2;
|
procfs_mapinfo *mapinfo_p, *mapinfo_p2;
|
int flags = ~0, err, num, i, j;
|
int flags = ~0, err, num, i, j;
|
|
|
struct
|
struct
|
{
|
{
|
procfs_debuginfo info;
|
procfs_debuginfo info;
|
char buff[_POSIX_PATH_MAX];
|
char buff[_POSIX_PATH_MAX];
|
} map;
|
} map;
|
|
|
struct info
|
struct info
|
{
|
{
|
unsigned addr;
|
unsigned addr;
|
unsigned size;
|
unsigned size;
|
unsigned flags;
|
unsigned flags;
|
unsigned debug_vaddr;
|
unsigned debug_vaddr;
|
unsigned long long offset;
|
unsigned long long offset;
|
};
|
};
|
|
|
struct printinfo
|
struct printinfo
|
{
|
{
|
unsigned long long ino;
|
unsigned long long ino;
|
unsigned dev;
|
unsigned dev;
|
struct info text;
|
struct info text;
|
struct info data;
|
struct info data;
|
char name[256];
|
char name[256];
|
} printme;
|
} printme;
|
|
|
/* Get the number of map entrys. */
|
/* Get the number of map entrys. */
|
err = devctl (ctl_fd, DCMD_PROC_MAPINFO, NULL, 0, &num);
|
err = devctl (ctl_fd, DCMD_PROC_MAPINFO, NULL, 0, &num);
|
if (err != EOK)
|
if (err != EOK)
|
{
|
{
|
printf ("failed devctl num mapinfos - %d (%s)\n", err,
|
printf ("failed devctl num mapinfos - %d (%s)\n", err,
|
safe_strerror (err));
|
safe_strerror (err));
|
return;
|
return;
|
}
|
}
|
|
|
mapinfos = xmalloc (num * sizeof (procfs_mapinfo));
|
mapinfos = xmalloc (num * sizeof (procfs_mapinfo));
|
|
|
num_mapinfos = num;
|
num_mapinfos = num;
|
mapinfo_p = mapinfos;
|
mapinfo_p = mapinfos;
|
|
|
/* Fill the map entrys. */
|
/* Fill the map entrys. */
|
err = devctl (ctl_fd, DCMD_PROC_MAPINFO, mapinfo_p, num
|
err = devctl (ctl_fd, DCMD_PROC_MAPINFO, mapinfo_p, num
|
* sizeof (procfs_mapinfo), &num);
|
* sizeof (procfs_mapinfo), &num);
|
if (err != EOK)
|
if (err != EOK)
|
{
|
{
|
printf ("failed devctl mapinfos - %d (%s)\n", err, safe_strerror (err));
|
printf ("failed devctl mapinfos - %d (%s)\n", err, safe_strerror (err));
|
xfree (mapinfos);
|
xfree (mapinfos);
|
return;
|
return;
|
}
|
}
|
|
|
num = min (num, num_mapinfos);
|
num = min (num, num_mapinfos);
|
|
|
/* Run through the list of mapinfos, and store the data and text info
|
/* Run through the list of mapinfos, and store the data and text info
|
so we can print it at the bottom of the loop. */
|
so we can print it at the bottom of the loop. */
|
for (mapinfo_p = mapinfos, i = 0; i < num; i++, mapinfo_p++)
|
for (mapinfo_p = mapinfos, i = 0; i < num; i++, mapinfo_p++)
|
{
|
{
|
if (!(mapinfo_p->flags & flags))
|
if (!(mapinfo_p->flags & flags))
|
mapinfo_p->ino = 0;
|
mapinfo_p->ino = 0;
|
|
|
if (mapinfo_p->ino == 0) /* Already visited. */
|
if (mapinfo_p->ino == 0) /* Already visited. */
|
continue;
|
continue;
|
|
|
map.info.vaddr = mapinfo_p->vaddr;
|
map.info.vaddr = mapinfo_p->vaddr;
|
|
|
err = devctl (ctl_fd, DCMD_PROC_MAPDEBUG, &map, sizeof (map), 0);
|
err = devctl (ctl_fd, DCMD_PROC_MAPDEBUG, &map, sizeof (map), 0);
|
if (err != EOK)
|
if (err != EOK)
|
continue;
|
continue;
|
|
|
memset (&printme, 0, sizeof printme);
|
memset (&printme, 0, sizeof printme);
|
printme.dev = mapinfo_p->dev;
|
printme.dev = mapinfo_p->dev;
|
printme.ino = mapinfo_p->ino;
|
printme.ino = mapinfo_p->ino;
|
printme.text.addr = mapinfo_p->vaddr;
|
printme.text.addr = mapinfo_p->vaddr;
|
printme.text.size = mapinfo_p->size;
|
printme.text.size = mapinfo_p->size;
|
printme.text.flags = mapinfo_p->flags;
|
printme.text.flags = mapinfo_p->flags;
|
printme.text.offset = mapinfo_p->offset;
|
printme.text.offset = mapinfo_p->offset;
|
printme.text.debug_vaddr = map.info.vaddr;
|
printme.text.debug_vaddr = map.info.vaddr;
|
strcpy (printme.name, map.info.path);
|
strcpy (printme.name, map.info.path);
|
|
|
/* Check for matching data. */
|
/* Check for matching data. */
|
for (mapinfo_p2 = mapinfos, j = 0; j < num; j++, mapinfo_p2++)
|
for (mapinfo_p2 = mapinfos, j = 0; j < num; j++, mapinfo_p2++)
|
{
|
{
|
if (mapinfo_p2->vaddr != mapinfo_p->vaddr
|
if (mapinfo_p2->vaddr != mapinfo_p->vaddr
|
&& mapinfo_p2->ino == mapinfo_p->ino
|
&& mapinfo_p2->ino == mapinfo_p->ino
|
&& mapinfo_p2->dev == mapinfo_p->dev)
|
&& mapinfo_p2->dev == mapinfo_p->dev)
|
{
|
{
|
map.info.vaddr = mapinfo_p2->vaddr;
|
map.info.vaddr = mapinfo_p2->vaddr;
|
err =
|
err =
|
devctl (ctl_fd, DCMD_PROC_MAPDEBUG, &map, sizeof (map), 0);
|
devctl (ctl_fd, DCMD_PROC_MAPDEBUG, &map, sizeof (map), 0);
|
if (err != EOK)
|
if (err != EOK)
|
continue;
|
continue;
|
|
|
if (strcmp (map.info.path, printme.name))
|
if (strcmp (map.info.path, printme.name))
|
continue;
|
continue;
|
|
|
/* Lower debug_vaddr is always text, if nessessary, swap. */
|
/* Lower debug_vaddr is always text, if nessessary, swap. */
|
if ((int) map.info.vaddr < (int) printme.text.debug_vaddr)
|
if ((int) map.info.vaddr < (int) printme.text.debug_vaddr)
|
{
|
{
|
memcpy (&(printme.data), &(printme.text),
|
memcpy (&(printme.data), &(printme.text),
|
sizeof (printme.data));
|
sizeof (printme.data));
|
printme.text.addr = mapinfo_p2->vaddr;
|
printme.text.addr = mapinfo_p2->vaddr;
|
printme.text.size = mapinfo_p2->size;
|
printme.text.size = mapinfo_p2->size;
|
printme.text.flags = mapinfo_p2->flags;
|
printme.text.flags = mapinfo_p2->flags;
|
printme.text.offset = mapinfo_p2->offset;
|
printme.text.offset = mapinfo_p2->offset;
|
printme.text.debug_vaddr = map.info.vaddr;
|
printme.text.debug_vaddr = map.info.vaddr;
|
}
|
}
|
else
|
else
|
{
|
{
|
printme.data.addr = mapinfo_p2->vaddr;
|
printme.data.addr = mapinfo_p2->vaddr;
|
printme.data.size = mapinfo_p2->size;
|
printme.data.size = mapinfo_p2->size;
|
printme.data.flags = mapinfo_p2->flags;
|
printme.data.flags = mapinfo_p2->flags;
|
printme.data.offset = mapinfo_p2->offset;
|
printme.data.offset = mapinfo_p2->offset;
|
printme.data.debug_vaddr = map.info.vaddr;
|
printme.data.debug_vaddr = map.info.vaddr;
|
}
|
}
|
mapinfo_p2->ino = 0;
|
mapinfo_p2->ino = 0;
|
}
|
}
|
}
|
}
|
mapinfo_p->ino = 0;
|
mapinfo_p->ino = 0;
|
|
|
printf_filtered ("%s\n", printme.name);
|
printf_filtered ("%s\n", printme.name);
|
printf_filtered ("\ttext=%08x bytes @ 0x%08x\n", printme.text.size,
|
printf_filtered ("\ttext=%08x bytes @ 0x%08x\n", printme.text.size,
|
printme.text.addr);
|
printme.text.addr);
|
printf_filtered ("\t\tflags=%08x\n", printme.text.flags);
|
printf_filtered ("\t\tflags=%08x\n", printme.text.flags);
|
printf_filtered ("\t\tdebug=%08x\n", printme.text.debug_vaddr);
|
printf_filtered ("\t\tdebug=%08x\n", printme.text.debug_vaddr);
|
printf_filtered ("\t\toffset=%016llx\n", printme.text.offset);
|
printf_filtered ("\t\toffset=%016llx\n", printme.text.offset);
|
if (printme.data.size)
|
if (printme.data.size)
|
{
|
{
|
printf_filtered ("\tdata=%08x bytes @ 0x%08x\n", printme.data.size,
|
printf_filtered ("\tdata=%08x bytes @ 0x%08x\n", printme.data.size,
|
printme.data.addr);
|
printme.data.addr);
|
printf_filtered ("\t\tflags=%08x\n", printme.data.flags);
|
printf_filtered ("\t\tflags=%08x\n", printme.data.flags);
|
printf_filtered ("\t\tdebug=%08x\n", printme.data.debug_vaddr);
|
printf_filtered ("\t\tdebug=%08x\n", printme.data.debug_vaddr);
|
printf_filtered ("\t\toffset=%016llx\n", printme.data.offset);
|
printf_filtered ("\t\toffset=%016llx\n", printme.data.offset);
|
}
|
}
|
printf_filtered ("\tdev=0x%x\n", printme.dev);
|
printf_filtered ("\tdev=0x%x\n", printme.dev);
|
printf_filtered ("\tino=0x%x\n", (unsigned int) printme.ino);
|
printf_filtered ("\tino=0x%x\n", (unsigned int) printme.ino);
|
}
|
}
|
xfree (mapinfos);
|
xfree (mapinfos);
|
return;
|
return;
|
}
|
}
|
|
|
/* Print status information about what we're accessing. */
|
/* Print status information about what we're accessing. */
|
static void
|
static void
|
procfs_files_info (struct target_ops *ignore)
|
procfs_files_info (struct target_ops *ignore)
|
{
|
{
|
printf_unfiltered ("\tUsing the running image of %s %s via %s.\n",
|
printf_unfiltered ("\tUsing the running image of %s %s via %s.\n",
|
attach_flag ? "attached" : "child",
|
attach_flag ? "attached" : "child",
|
target_pid_to_str (inferior_ptid), nto_procfs_path);
|
target_pid_to_str (inferior_ptid), nto_procfs_path);
|
}
|
}
|
|
|
/* Mark our target-struct as eligible for stray "run" and "attach" commands. */
|
/* Mark our target-struct as eligible for stray "run" and "attach" commands. */
|
static int
|
static int
|
procfs_can_run (void)
|
procfs_can_run (void)
|
{
|
{
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Attach to process PID, then initialize for debugging it. */
|
/* Attach to process PID, then initialize for debugging it. */
|
static void
|
static void
|
procfs_attach (char *args, int from_tty)
|
procfs_attach (char *args, int from_tty)
|
{
|
{
|
char *exec_file;
|
char *exec_file;
|
int pid;
|
int pid;
|
|
|
if (!args)
|
if (!args)
|
error_no_arg (_("process-id to attach"));
|
error_no_arg (_("process-id to attach"));
|
|
|
pid = atoi (args);
|
pid = atoi (args);
|
|
|
if (pid == getpid ())
|
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 (from_tty)
|
{
|
{
|
exec_file = (char *) get_exec_file (0);
|
exec_file = (char *) get_exec_file (0);
|
|
|
if (exec_file)
|
if (exec_file)
|
printf_unfiltered ("Attaching to program `%s', %s\n", exec_file,
|
printf_unfiltered ("Attaching to program `%s', %s\n", exec_file,
|
target_pid_to_str (pid_to_ptid (pid)));
|
target_pid_to_str (pid_to_ptid (pid)));
|
else
|
else
|
printf_unfiltered ("Attaching to %s\n",
|
printf_unfiltered ("Attaching to %s\n",
|
target_pid_to_str (pid_to_ptid (pid)));
|
target_pid_to_str (pid_to_ptid (pid)));
|
|
|
gdb_flush (gdb_stdout);
|
gdb_flush (gdb_stdout);
|
}
|
}
|
inferior_ptid = do_attach (pid_to_ptid (pid));
|
inferior_ptid = do_attach (pid_to_ptid (pid));
|
push_target (&procfs_ops);
|
push_target (&procfs_ops);
|
}
|
}
|
|
|
static void
|
static void
|
procfs_post_attach (pid_t pid)
|
procfs_post_attach (pid_t pid)
|
{
|
{
|
if (exec_bfd)
|
if (exec_bfd)
|
solib_create_inferior_hook ();
|
solib_create_inferior_hook ();
|
}
|
}
|
|
|
static ptid_t
|
static ptid_t
|
do_attach (ptid_t ptid)
|
do_attach (ptid_t ptid)
|
{
|
{
|
procfs_status status;
|
procfs_status status;
|
struct sigevent event;
|
struct sigevent event;
|
char path[PATH_MAX];
|
char path[PATH_MAX];
|
|
|
snprintf (path, PATH_MAX - 1, "%s/%d/as", nto_procfs_path, PIDGET (ptid));
|
snprintf (path, PATH_MAX - 1, "%s/%d/as", nto_procfs_path, PIDGET (ptid));
|
ctl_fd = open (path, O_RDWR);
|
ctl_fd = open (path, O_RDWR);
|
if (ctl_fd == -1)
|
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));
|
safe_strerror (errno));
|
if (devctl (ctl_fd, DCMD_PROC_STOP, &status, sizeof (status), 0) != EOK)
|
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. */
|
/* Define a sigevent for process stopped notification. */
|
event.sigev_notify = SIGEV_SIGNAL_THREAD;
|
event.sigev_notify = SIGEV_SIGNAL_THREAD;
|
event.sigev_signo = SIGUSR1;
|
event.sigev_signo = SIGUSR1;
|
event.sigev_code = 0;
|
event.sigev_code = 0;
|
event.sigev_value.sival_ptr = NULL;
|
event.sigev_value.sival_ptr = NULL;
|
event.sigev_priority = -1;
|
event.sigev_priority = -1;
|
devctl (ctl_fd, DCMD_PROC_EVENT, &event, sizeof (event), 0);
|
devctl (ctl_fd, DCMD_PROC_EVENT, &event, sizeof (event), 0);
|
|
|
if (devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0) == EOK
|
if (devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0) == EOK
|
&& status.flags & _DEBUG_FLAG_STOPPED)
|
&& status.flags & _DEBUG_FLAG_STOPPED)
|
SignalKill (nto_node (), PIDGET (ptid), 0, SIGCONT, 0, 0);
|
SignalKill (nto_node (), PIDGET (ptid), 0, SIGCONT, 0, 0);
|
attach_flag = 1;
|
attach_flag = 1;
|
nto_init_solib_absolute_prefix ();
|
nto_init_solib_absolute_prefix ();
|
return ptid;
|
return ptid;
|
}
|
}
|
|
|
/* Ask the user what to do when an interrupt is received. */
|
/* Ask the user what to do when an interrupt is received. */
|
static void
|
static void
|
interrupt_query (void)
|
interrupt_query (void)
|
{
|
{
|
target_terminal_ours ();
|
target_terminal_ours ();
|
|
|
if (query ("Interrupted while waiting for the program.\n\
|
if (query ("Interrupted while waiting for the program.\n\
|
Give up (and stop debugging it)? "))
|
Give up (and stop debugging it)? "))
|
{
|
{
|
target_mourn_inferior ();
|
target_mourn_inferior ();
|
deprecated_throw_reason (RETURN_QUIT);
|
deprecated_throw_reason (RETURN_QUIT);
|
}
|
}
|
|
|
target_terminal_inferior ();
|
target_terminal_inferior ();
|
}
|
}
|
|
|
/* The user typed ^C twice. */
|
/* The user typed ^C twice. */
|
static void
|
static void
|
nto_interrupt_twice (int signo)
|
nto_interrupt_twice (int signo)
|
{
|
{
|
signal (signo, ofunc);
|
signal (signo, ofunc);
|
interrupt_query ();
|
interrupt_query ();
|
signal (signo, nto_interrupt_twice);
|
signal (signo, nto_interrupt_twice);
|
}
|
}
|
|
|
static void
|
static void
|
nto_interrupt (int signo)
|
nto_interrupt (int signo)
|
{
|
{
|
/* If this doesn't work, try more severe steps. */
|
/* If this doesn't work, try more severe steps. */
|
signal (signo, nto_interrupt_twice);
|
signal (signo, nto_interrupt_twice);
|
|
|
target_stop ();
|
target_stop ();
|
}
|
}
|
|
|
static ptid_t
|
static ptid_t
|
procfs_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
|
procfs_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
|
{
|
{
|
sigset_t set;
|
sigset_t set;
|
siginfo_t info;
|
siginfo_t info;
|
procfs_status status;
|
procfs_status status;
|
static int exit_signo = 0; /* To track signals that cause termination. */
|
static int exit_signo = 0; /* To track signals that cause termination. */
|
|
|
ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
|
ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
|
|
|
if (ptid_equal (inferior_ptid, null_ptid))
|
if (ptid_equal (inferior_ptid, null_ptid))
|
{
|
{
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
ourstatus->value.sig = TARGET_SIGNAL_0;
|
ourstatus->value.sig = TARGET_SIGNAL_0;
|
exit_signo = 0;
|
exit_signo = 0;
|
return null_ptid;
|
return null_ptid;
|
}
|
}
|
|
|
sigemptyset (&set);
|
sigemptyset (&set);
|
sigaddset (&set, SIGUSR1);
|
sigaddset (&set, SIGUSR1);
|
|
|
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
|
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
|
while (!(status.flags & _DEBUG_FLAG_ISTOP))
|
while (!(status.flags & _DEBUG_FLAG_ISTOP))
|
{
|
{
|
ofunc = (void (*)()) signal (SIGINT, nto_interrupt);
|
ofunc = (void (*)()) signal (SIGINT, nto_interrupt);
|
sigwaitinfo (&set, &info);
|
sigwaitinfo (&set, &info);
|
signal (SIGINT, ofunc);
|
signal (SIGINT, ofunc);
|
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
|
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
|
}
|
}
|
|
|
if (status.flags & _DEBUG_FLAG_SSTEP)
|
if (status.flags & _DEBUG_FLAG_SSTEP)
|
{
|
{
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
|
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
|
}
|
}
|
/* Was it a breakpoint? */
|
/* Was it a breakpoint? */
|
else if (status.flags & _DEBUG_FLAG_TRACE)
|
else if (status.flags & _DEBUG_FLAG_TRACE)
|
{
|
{
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
|
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
|
}
|
}
|
else if (status.flags & _DEBUG_FLAG_ISTOP)
|
else if (status.flags & _DEBUG_FLAG_ISTOP)
|
{
|
{
|
switch (status.why)
|
switch (status.why)
|
{
|
{
|
case _DEBUG_WHY_SIGNALLED:
|
case _DEBUG_WHY_SIGNALLED:
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
ourstatus->value.sig =
|
ourstatus->value.sig =
|
target_signal_from_host (status.info.si_signo);
|
target_signal_from_host (status.info.si_signo);
|
exit_signo = 0;
|
exit_signo = 0;
|
break;
|
break;
|
case _DEBUG_WHY_FAULTED:
|
case _DEBUG_WHY_FAULTED:
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
if (status.info.si_signo == SIGTRAP)
|
if (status.info.si_signo == SIGTRAP)
|
{
|
{
|
ourstatus->value.sig = 0;
|
ourstatus->value.sig = 0;
|
exit_signo = 0;
|
exit_signo = 0;
|
}
|
}
|
else
|
else
|
{
|
{
|
ourstatus->value.sig =
|
ourstatus->value.sig =
|
target_signal_from_host (status.info.si_signo);
|
target_signal_from_host (status.info.si_signo);
|
exit_signo = ourstatus->value.sig;
|
exit_signo = ourstatus->value.sig;
|
}
|
}
|
break;
|
break;
|
|
|
case _DEBUG_WHY_TERMINATED:
|
case _DEBUG_WHY_TERMINATED:
|
{
|
{
|
int waitval = 0;
|
int waitval = 0;
|
|
|
waitpid (PIDGET (inferior_ptid), &waitval, WNOHANG);
|
waitpid (PIDGET (inferior_ptid), &waitval, WNOHANG);
|
if (exit_signo)
|
if (exit_signo)
|
{
|
{
|
/* Abnormal death. */
|
/* Abnormal death. */
|
ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
|
ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
|
ourstatus->value.sig = exit_signo;
|
ourstatus->value.sig = exit_signo;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Normal death. */
|
/* Normal death. */
|
ourstatus->kind = TARGET_WAITKIND_EXITED;
|
ourstatus->kind = TARGET_WAITKIND_EXITED;
|
ourstatus->value.integer = WEXITSTATUS (waitval);
|
ourstatus->value.integer = WEXITSTATUS (waitval);
|
}
|
}
|
exit_signo = 0;
|
exit_signo = 0;
|
break;
|
break;
|
}
|
}
|
|
|
case _DEBUG_WHY_REQUESTED:
|
case _DEBUG_WHY_REQUESTED:
|
/* We are assuming a requested stop is due to a SIGINT. */
|
/* We are assuming a requested stop is due to a SIGINT. */
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
ourstatus->value.sig = TARGET_SIGNAL_INT;
|
ourstatus->value.sig = TARGET_SIGNAL_INT;
|
exit_signo = 0;
|
exit_signo = 0;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
return inferior_ptid;
|
return inferior_ptid;
|
}
|
}
|
|
|
/* Read the current values of the inferior's registers, both the
|
/* Read the current values of the inferior's registers, both the
|
general register set and floating point registers (if supported)
|
general register set and floating point registers (if supported)
|
and update gdb's idea of their current values. */
|
and update gdb's idea of their current values. */
|
static void
|
static void
|
procfs_fetch_registers (struct regcache *regcache, int regno)
|
procfs_fetch_registers (struct regcache *regcache, int regno)
|
{
|
{
|
union
|
union
|
{
|
{
|
procfs_greg greg;
|
procfs_greg greg;
|
procfs_fpreg fpreg;
|
procfs_fpreg fpreg;
|
procfs_altreg altreg;
|
procfs_altreg altreg;
|
}
|
}
|
reg;
|
reg;
|
int regsize;
|
int regsize;
|
|
|
procfs_set_thread (inferior_ptid);
|
procfs_set_thread (inferior_ptid);
|
if (devctl (ctl_fd, DCMD_PROC_GETGREG, ®, sizeof (reg), ®size) == EOK)
|
if (devctl (ctl_fd, DCMD_PROC_GETGREG, ®, sizeof (reg), ®size) == EOK)
|
nto_supply_gregset (regcache, (char *) ®.greg);
|
nto_supply_gregset (regcache, (char *) ®.greg);
|
if (devctl (ctl_fd, DCMD_PROC_GETFPREG, ®, sizeof (reg), ®size)
|
if (devctl (ctl_fd, DCMD_PROC_GETFPREG, ®, sizeof (reg), ®size)
|
== EOK)
|
== EOK)
|
nto_supply_fpregset (regcache, (char *) ®.fpreg);
|
nto_supply_fpregset (regcache, (char *) ®.fpreg);
|
if (devctl (ctl_fd, DCMD_PROC_GETALTREG, ®, sizeof (reg), ®size)
|
if (devctl (ctl_fd, DCMD_PROC_GETALTREG, ®, sizeof (reg), ®size)
|
== EOK)
|
== EOK)
|
nto_supply_altregset (regcache, (char *) ®.altreg);
|
nto_supply_altregset (regcache, (char *) ®.altreg);
|
}
|
}
|
|
|
/* Copy LEN bytes to/from inferior's memory starting at MEMADDR
|
/* Copy LEN bytes to/from inferior's memory starting at MEMADDR
|
from/to debugger memory starting at MYADDR. Copy from inferior
|
from/to debugger memory starting at MYADDR. Copy from inferior
|
if DOWRITE is zero or to inferior if DOWRITE is nonzero.
|
if DOWRITE is zero or to inferior if DOWRITE is nonzero.
|
|
|
Returns the length copied, which is either the LEN argument or
|
Returns the length copied, which is either the LEN argument or
|
zero. This xfer function does not do partial moves, since procfs_ops
|
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
|
doesn't allow memory operations to cross below us in the target stack
|
anyway. */
|
anyway. */
|
static int
|
static int
|
procfs_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int dowrite,
|
procfs_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int dowrite,
|
struct mem_attrib *attrib, struct target_ops *target)
|
struct mem_attrib *attrib, struct target_ops *target)
|
{
|
{
|
int nbytes = 0;
|
int nbytes = 0;
|
|
|
if (lseek (ctl_fd, (off_t) memaddr, SEEK_SET) == (off_t) memaddr)
|
if (lseek (ctl_fd, (off_t) memaddr, SEEK_SET) == (off_t) memaddr)
|
{
|
{
|
if (dowrite)
|
if (dowrite)
|
nbytes = write (ctl_fd, myaddr, len);
|
nbytes = write (ctl_fd, myaddr, len);
|
else
|
else
|
nbytes = read (ctl_fd, myaddr, len);
|
nbytes = read (ctl_fd, myaddr, len);
|
if (nbytes < 0)
|
if (nbytes < 0)
|
nbytes = 0;
|
nbytes = 0;
|
}
|
}
|
return (nbytes);
|
return (nbytes);
|
}
|
}
|
|
|
/* Take a program previously attached to and detaches it.
|
/* Take a program previously attached to and detaches it.
|
The program resumes execution and will no longer stop
|
The program resumes execution and will no longer stop
|
on signals, etc. We'd better not have left any breakpoints
|
on signals, etc. We'd better not have left any breakpoints
|
in the program or it'll die when it hits one. */
|
in the program or it'll die when it hits one. */
|
static void
|
static void
|
procfs_detach (char *args, int from_tty)
|
procfs_detach (char *args, int from_tty)
|
{
|
{
|
int siggnal = 0;
|
int siggnal = 0;
|
|
|
if (from_tty)
|
if (from_tty)
|
{
|
{
|
char *exec_file = get_exec_file (0);
|
char *exec_file = get_exec_file (0);
|
if (exec_file == 0)
|
if (exec_file == 0)
|
exec_file = "";
|
exec_file = "";
|
printf_unfiltered ("Detaching from program: %s %s\n",
|
printf_unfiltered ("Detaching from program: %s %s\n",
|
exec_file, target_pid_to_str (inferior_ptid));
|
exec_file, target_pid_to_str (inferior_ptid));
|
gdb_flush (gdb_stdout);
|
gdb_flush (gdb_stdout);
|
}
|
}
|
if (args)
|
if (args)
|
siggnal = atoi (args);
|
siggnal = atoi (args);
|
|
|
if (siggnal)
|
if (siggnal)
|
SignalKill (nto_node (), PIDGET (inferior_ptid), 0, siggnal, 0, 0);
|
SignalKill (nto_node (), PIDGET (inferior_ptid), 0, siggnal, 0, 0);
|
|
|
close (ctl_fd);
|
close (ctl_fd);
|
ctl_fd = -1;
|
ctl_fd = -1;
|
init_thread_list ();
|
init_thread_list ();
|
inferior_ptid = null_ptid;
|
inferior_ptid = null_ptid;
|
attach_flag = 0;
|
attach_flag = 0;
|
unpush_target (&procfs_ops); /* Pop out of handling an inferior. */
|
unpush_target (&procfs_ops); /* Pop out of handling an inferior. */
|
}
|
}
|
|
|
static int
|
static int
|
procfs_breakpoint (CORE_ADDR addr, int type, int size)
|
procfs_breakpoint (CORE_ADDR addr, int type, int size)
|
{
|
{
|
procfs_break brk;
|
procfs_break brk;
|
|
|
brk.type = type;
|
brk.type = type;
|
brk.addr = addr;
|
brk.addr = addr;
|
brk.size = size;
|
brk.size = size;
|
errno = devctl (ctl_fd, DCMD_PROC_BREAK, &brk, sizeof (brk), 0);
|
errno = devctl (ctl_fd, DCMD_PROC_BREAK, &brk, sizeof (brk), 0);
|
if (errno != EOK)
|
if (errno != EOK)
|
return 1;
|
return 1;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static int
|
static int
|
procfs_insert_breakpoint (struct bp_target_info *bp_tgt)
|
procfs_insert_breakpoint (struct bp_target_info *bp_tgt)
|
{
|
{
|
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, 0);
|
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, 0);
|
}
|
}
|
|
|
static int
|
static int
|
procfs_remove_breakpoint (struct bp_target_info *bp_tgt)
|
procfs_remove_breakpoint (struct bp_target_info *bp_tgt)
|
{
|
{
|
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, -1);
|
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, -1);
|
}
|
}
|
|
|
static int
|
static int
|
procfs_insert_hw_breakpoint (struct bp_target_info *bp_tgt)
|
procfs_insert_hw_breakpoint (struct bp_target_info *bp_tgt)
|
{
|
{
|
return procfs_breakpoint (bp_tgt->placed_address,
|
return procfs_breakpoint (bp_tgt->placed_address,
|
_DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, 0);
|
_DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, 0);
|
}
|
}
|
|
|
static int
|
static int
|
procfs_remove_hw_breakpoint (struct bp_target_info *bp_tgt)
|
procfs_remove_hw_breakpoint (struct bp_target_info *bp_tgt)
|
{
|
{
|
return procfs_breakpoint (bp_tgt->placed_address,
|
return procfs_breakpoint (bp_tgt->placed_address,
|
_DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, -1);
|
_DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, -1);
|
}
|
}
|
|
|
static void
|
static void
|
procfs_resume (ptid_t ptid, int step, enum target_signal signo)
|
procfs_resume (ptid_t ptid, int step, enum target_signal signo)
|
{
|
{
|
int signal_to_pass;
|
int signal_to_pass;
|
procfs_status status;
|
procfs_status status;
|
|
|
if (ptid_equal (inferior_ptid, null_ptid))
|
if (ptid_equal (inferior_ptid, null_ptid))
|
return;
|
return;
|
|
|
procfs_set_thread (ptid_equal (ptid, minus_one_ptid) ? inferior_ptid :
|
procfs_set_thread (ptid_equal (ptid, minus_one_ptid) ? inferior_ptid :
|
ptid);
|
ptid);
|
|
|
run.flags = _DEBUG_RUN_FAULT | _DEBUG_RUN_TRACE;
|
run.flags = _DEBUG_RUN_FAULT | _DEBUG_RUN_TRACE;
|
if (step)
|
if (step)
|
run.flags |= _DEBUG_RUN_STEP;
|
run.flags |= _DEBUG_RUN_STEP;
|
|
|
sigemptyset ((sigset_t *) &run.fault);
|
sigemptyset ((sigset_t *) &run.fault);
|
sigaddset ((sigset_t *) &run.fault, FLTBPT);
|
sigaddset ((sigset_t *) &run.fault, FLTBPT);
|
sigaddset ((sigset_t *) &run.fault, FLTTRACE);
|
sigaddset ((sigset_t *) &run.fault, FLTTRACE);
|
sigaddset ((sigset_t *) &run.fault, FLTILL);
|
sigaddset ((sigset_t *) &run.fault, FLTILL);
|
sigaddset ((sigset_t *) &run.fault, FLTPRIV);
|
sigaddset ((sigset_t *) &run.fault, FLTPRIV);
|
sigaddset ((sigset_t *) &run.fault, FLTBOUNDS);
|
sigaddset ((sigset_t *) &run.fault, FLTBOUNDS);
|
sigaddset ((sigset_t *) &run.fault, FLTIOVF);
|
sigaddset ((sigset_t *) &run.fault, FLTIOVF);
|
sigaddset ((sigset_t *) &run.fault, FLTIZDIV);
|
sigaddset ((sigset_t *) &run.fault, FLTIZDIV);
|
sigaddset ((sigset_t *) &run.fault, FLTFPE);
|
sigaddset ((sigset_t *) &run.fault, FLTFPE);
|
/* Peter V will be changing this at some point. */
|
/* Peter V will be changing this at some point. */
|
sigaddset ((sigset_t *) &run.fault, FLTPAGE);
|
sigaddset ((sigset_t *) &run.fault, FLTPAGE);
|
|
|
run.flags |= _DEBUG_RUN_ARM;
|
run.flags |= _DEBUG_RUN_ARM;
|
|
|
sigemptyset (&run.trace);
|
sigemptyset (&run.trace);
|
notice_signals ();
|
notice_signals ();
|
signal_to_pass = target_signal_to_host (signo);
|
signal_to_pass = target_signal_to_host (signo);
|
|
|
if (signal_to_pass)
|
if (signal_to_pass)
|
{
|
{
|
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
|
devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0);
|
signal_to_pass = target_signal_to_host (signo);
|
signal_to_pass = target_signal_to_host (signo);
|
if (status.why & (_DEBUG_WHY_SIGNALLED | _DEBUG_WHY_FAULTED))
|
if (status.why & (_DEBUG_WHY_SIGNALLED | _DEBUG_WHY_FAULTED))
|
{
|
{
|
if (signal_to_pass != status.info.si_signo)
|
if (signal_to_pass != status.info.si_signo)
|
{
|
{
|
SignalKill (nto_node (), PIDGET (inferior_ptid), 0,
|
SignalKill (nto_node (), PIDGET (inferior_ptid), 0,
|
signal_to_pass, 0, 0);
|
signal_to_pass, 0, 0);
|
run.flags |= _DEBUG_RUN_CLRFLT | _DEBUG_RUN_CLRSIG;
|
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);
|
sigdelset (&run.trace, signal_to_pass);
|
}
|
}
|
}
|
}
|
else
|
else
|
run.flags |= _DEBUG_RUN_CLRSIG | _DEBUG_RUN_CLRFLT;
|
run.flags |= _DEBUG_RUN_CLRSIG | _DEBUG_RUN_CLRFLT;
|
|
|
errno = devctl (ctl_fd, DCMD_PROC_RUN, &run, sizeof (run), 0);
|
errno = devctl (ctl_fd, DCMD_PROC_RUN, &run, sizeof (run), 0);
|
if (errno != EOK)
|
if (errno != EOK)
|
{
|
{
|
perror ("run error!\n");
|
perror ("run error!\n");
|
return;
|
return;
|
}
|
}
|
}
|
}
|
|
|
static void
|
static void
|
procfs_mourn_inferior (void)
|
procfs_mourn_inferior (void)
|
{
|
{
|
if (!ptid_equal (inferior_ptid, null_ptid))
|
if (!ptid_equal (inferior_ptid, null_ptid))
|
{
|
{
|
SignalKill (nto_node (), PIDGET (inferior_ptid), 0, SIGKILL, 0, 0);
|
SignalKill (nto_node (), PIDGET (inferior_ptid), 0, SIGKILL, 0, 0);
|
close (ctl_fd);
|
close (ctl_fd);
|
}
|
}
|
inferior_ptid = null_ptid;
|
inferior_ptid = null_ptid;
|
init_thread_list ();
|
init_thread_list ();
|
unpush_target (&procfs_ops);
|
unpush_target (&procfs_ops);
|
generic_mourn_inferior ();
|
generic_mourn_inferior ();
|
attach_flag = 0;
|
attach_flag = 0;
|
}
|
}
|
|
|
/* This function breaks up an argument string into an argument
|
/* This function breaks up an argument string into an argument
|
vector suitable for passing to execvp().
|
vector suitable for passing to execvp().
|
E.g., on "run a b c d" this routine would get as input
|
E.g., on "run a b c d" this routine would get as input
|
the string "a b c d", and as output it would fill in argv with
|
the string "a b c d", and as output it would fill in argv with
|
the four arguments "a", "b", "c", "d". The only additional
|
the four arguments "a", "b", "c", "d". The only additional
|
functionality is simple quoting. The gdb command:
|
functionality is simple quoting. The gdb command:
|
run a "b c d" f
|
run a "b c d" f
|
will fill in argv with the three args "a", "b c d", "e". */
|
will fill in argv with the three args "a", "b c d", "e". */
|
static void
|
static void
|
breakup_args (char *scratch, char **argv)
|
breakup_args (char *scratch, char **argv)
|
{
|
{
|
char *pp, *cp = scratch;
|
char *pp, *cp = scratch;
|
char quoting = 0;
|
char quoting = 0;
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
/* Scan past leading separators. */
|
/* Scan past leading separators. */
|
quoting = 0;
|
quoting = 0;
|
while (*cp == ' ' || *cp == '\t' || *cp == '\n')
|
while (*cp == ' ' || *cp == '\t' || *cp == '\n')
|
cp++;
|
cp++;
|
|
|
/* Break if at end of string. */
|
/* Break if at end of string. */
|
if (*cp == '\0')
|
if (*cp == '\0')
|
break;
|
break;
|
|
|
/* Take an arg. */
|
/* Take an arg. */
|
if (*cp == '"')
|
if (*cp == '"')
|
{
|
{
|
cp++;
|
cp++;
|
quoting = strchr (cp, '"') ? 1 : 0;
|
quoting = strchr (cp, '"') ? 1 : 0;
|
}
|
}
|
|
|
*argv++ = cp;
|
*argv++ = cp;
|
|
|
/* Scan for next arg separator. */
|
/* Scan for next arg separator. */
|
pp = cp;
|
pp = cp;
|
if (quoting)
|
if (quoting)
|
cp = strchr (pp, '"');
|
cp = strchr (pp, '"');
|
if ((cp == NULL) || (!quoting))
|
if ((cp == NULL) || (!quoting))
|
cp = strchr (pp, ' ');
|
cp = strchr (pp, ' ');
|
if (cp == NULL)
|
if (cp == NULL)
|
cp = strchr (pp, '\t');
|
cp = strchr (pp, '\t');
|
if (cp == NULL)
|
if (cp == NULL)
|
cp = strchr (pp, '\n');
|
cp = strchr (pp, '\n');
|
|
|
/* No separators => end of string => break. */
|
/* No separators => end of string => break. */
|
if (cp == NULL)
|
if (cp == NULL)
|
{
|
{
|
pp = cp;
|
pp = cp;
|
break;
|
break;
|
}
|
}
|
|
|
/* Replace the separator with a terminator. */
|
/* Replace the separator with a terminator. */
|
*cp++ = '\0';
|
*cp++ = '\0';
|
}
|
}
|
|
|
/* Execv requires a null-terminated arg vector. */
|
/* Execv requires a null-terminated arg vector. */
|
*argv = NULL;
|
*argv = NULL;
|
}
|
}
|
|
|
static void
|
static void
|
procfs_create_inferior (char *exec_file, char *allargs, char **env,
|
procfs_create_inferior (char *exec_file, char *allargs, char **env,
|
int from_tty)
|
int from_tty)
|
{
|
{
|
struct inheritance inherit;
|
struct inheritance inherit;
|
pid_t pid;
|
pid_t pid;
|
int flags, errn;
|
int flags, errn;
|
char **argv, *args;
|
char **argv, *args;
|
const char *in = "", *out = "", *err = "";
|
const char *in = "", *out = "", *err = "";
|
int fd, fds[3];
|
int fd, fds[3];
|
sigset_t set;
|
sigset_t set;
|
const char *inferior_io_terminal = get_inferior_io_terminal ();
|
const char *inferior_io_terminal = get_inferior_io_terminal ();
|
|
|
argv = xmalloc (((strlen (allargs) + 1) / (unsigned) 2 + 2) *
|
argv = xmalloc (((strlen (allargs) + 1) / (unsigned) 2 + 2) *
|
sizeof (*argv));
|
sizeof (*argv));
|
argv[0] = get_exec_file (1);
|
argv[0] = get_exec_file (1);
|
if (!argv[0])
|
if (!argv[0])
|
{
|
{
|
if (exec_file)
|
if (exec_file)
|
argv[0] = exec_file;
|
argv[0] = exec_file;
|
else
|
else
|
return;
|
return;
|
}
|
}
|
|
|
args = xstrdup (allargs);
|
args = xstrdup (allargs);
|
breakup_args (args, exec_file ? &argv[1] : &argv[0]);
|
breakup_args (args, exec_file ? &argv[1] : &argv[0]);
|
|
|
argv = nto_parse_redirection (argv, &in, &out, &err);
|
argv = nto_parse_redirection (argv, &in, &out, &err);
|
|
|
fds[0] = STDIN_FILENO;
|
fds[0] = STDIN_FILENO;
|
fds[1] = STDOUT_FILENO;
|
fds[1] = STDOUT_FILENO;
|
fds[2] = STDERR_FILENO;
|
fds[2] = STDERR_FILENO;
|
|
|
/* If the user specified I/O via gdb's --tty= arg, use it, but only
|
/* If the user specified I/O via gdb's --tty= arg, use it, but only
|
if the i/o is not also being specified via redirection. */
|
if the i/o is not also being specified via redirection. */
|
if (inferior_io_terminal)
|
if (inferior_io_terminal)
|
{
|
{
|
if (!in[0])
|
if (!in[0])
|
in = inferior_io_terminal;
|
in = inferior_io_terminal;
|
if (!out[0])
|
if (!out[0])
|
out = inferior_io_terminal;
|
out = inferior_io_terminal;
|
if (!err[0])
|
if (!err[0])
|
err = inferior_io_terminal;
|
err = inferior_io_terminal;
|
}
|
}
|
|
|
if (in[0])
|
if (in[0])
|
{
|
{
|
fd = open (in, O_RDONLY);
|
fd = open (in, O_RDONLY);
|
if (fd == -1)
|
if (fd == -1)
|
perror (in);
|
perror (in);
|
else
|
else
|
fds[0] = fd;
|
fds[0] = fd;
|
}
|
}
|
if (out[0])
|
if (out[0])
|
{
|
{
|
fd = open (out, O_WRONLY);
|
fd = open (out, O_WRONLY);
|
if (fd == -1)
|
if (fd == -1)
|
perror (out);
|
perror (out);
|
else
|
else
|
fds[1] = fd;
|
fds[1] = fd;
|
}
|
}
|
if (err[0])
|
if (err[0])
|
{
|
{
|
fd = open (err, O_WRONLY);
|
fd = open (err, O_WRONLY);
|
if (fd == -1)
|
if (fd == -1)
|
perror (err);
|
perror (err);
|
else
|
else
|
fds[2] = fd;
|
fds[2] = fd;
|
}
|
}
|
|
|
/* Clear any pending SIGUSR1's but keep the behavior the same. */
|
/* Clear any pending SIGUSR1's but keep the behavior the same. */
|
signal (SIGUSR1, signal (SIGUSR1, SIG_IGN));
|
signal (SIGUSR1, signal (SIGUSR1, SIG_IGN));
|
|
|
sigemptyset (&set);
|
sigemptyset (&set);
|
sigaddset (&set, SIGUSR1);
|
sigaddset (&set, SIGUSR1);
|
sigprocmask (SIG_UNBLOCK, &set, NULL);
|
sigprocmask (SIG_UNBLOCK, &set, NULL);
|
|
|
memset (&inherit, 0, sizeof (inherit));
|
memset (&inherit, 0, sizeof (inherit));
|
|
|
if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) != 0)
|
if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) != 0)
|
{
|
{
|
inherit.nd = nto_node ();
|
inherit.nd = nto_node ();
|
inherit.flags |= SPAWN_SETND;
|
inherit.flags |= SPAWN_SETND;
|
inherit.flags &= ~SPAWN_EXEC;
|
inherit.flags &= ~SPAWN_EXEC;
|
}
|
}
|
inherit.flags |= SPAWN_SETGROUP | SPAWN_HOLD;
|
inherit.flags |= SPAWN_SETGROUP | SPAWN_HOLD;
|
inherit.pgroup = SPAWN_NEWPGROUP;
|
inherit.pgroup = SPAWN_NEWPGROUP;
|
pid = spawnp (argv[0], 3, fds, &inherit, argv,
|
pid = spawnp (argv[0], 3, fds, &inherit, argv,
|
ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0 ? env : 0);
|
ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0 ? env : 0);
|
xfree (args);
|
xfree (args);
|
|
|
sigprocmask (SIG_BLOCK, &set, NULL);
|
sigprocmask (SIG_BLOCK, &set, NULL);
|
|
|
if (pid == -1)
|
if (pid == -1)
|
error (_("Error spawning %s: %d (%s)"), argv[0], errno,
|
error (_("Error spawning %s: %d (%s)"), argv[0], errno,
|
safe_strerror (errno));
|
safe_strerror (errno));
|
|
|
if (fds[0] != STDIN_FILENO)
|
if (fds[0] != STDIN_FILENO)
|
close (fds[0]);
|
close (fds[0]);
|
if (fds[1] != STDOUT_FILENO)
|
if (fds[1] != STDOUT_FILENO)
|
close (fds[1]);
|
close (fds[1]);
|
if (fds[2] != STDERR_FILENO)
|
if (fds[2] != STDERR_FILENO)
|
close (fds[2]);
|
close (fds[2]);
|
|
|
inferior_ptid = do_attach (pid_to_ptid (pid));
|
inferior_ptid = do_attach (pid_to_ptid (pid));
|
|
|
attach_flag = 0;
|
attach_flag = 0;
|
flags = _DEBUG_FLAG_KLC; /* Kill-on-Last-Close flag. */
|
flags = _DEBUG_FLAG_KLC; /* Kill-on-Last-Close flag. */
|
errn = devctl (ctl_fd, DCMD_PROC_SET_FLAG, &flags, sizeof (flags), 0);
|
errn = devctl (ctl_fd, DCMD_PROC_SET_FLAG, &flags, sizeof (flags), 0);
|
if (errn != EOK)
|
if (errn != EOK)
|
{
|
{
|
/* FIXME: expected warning? */
|
/* FIXME: expected warning? */
|
/* warning( "Failed to set Kill-on-Last-Close flag: errno = %d(%s)\n",
|
/* warning( "Failed to set Kill-on-Last-Close flag: errno = %d(%s)\n",
|
errn, strerror(errn) ); */
|
errn, strerror(errn) ); */
|
}
|
}
|
push_target (&procfs_ops);
|
push_target (&procfs_ops);
|
target_terminal_init ();
|
target_terminal_init ();
|
|
|
if (exec_bfd != NULL
|
if (exec_bfd != NULL
|
|| (symfile_objfile != NULL && symfile_objfile->obfd != NULL))
|
|| (symfile_objfile != NULL && symfile_objfile->obfd != NULL))
|
solib_create_inferior_hook ();
|
solib_create_inferior_hook ();
|
stop_soon = 0;
|
stop_soon = 0;
|
}
|
}
|
|
|
static void
|
static void
|
procfs_stop (void)
|
procfs_stop (void)
|
{
|
{
|
devctl (ctl_fd, DCMD_PROC_STOP, NULL, 0, 0);
|
devctl (ctl_fd, DCMD_PROC_STOP, NULL, 0, 0);
|
}
|
}
|
|
|
static void
|
static void
|
procfs_kill_inferior (void)
|
procfs_kill_inferior (void)
|
{
|
{
|
target_mourn_inferior ();
|
target_mourn_inferior ();
|
}
|
}
|
|
|
/* Store register REGNO, or all registers if REGNO == -1, from the contents
|
/* Store register REGNO, or all registers if REGNO == -1, from the contents
|
of REGISTERS. */
|
of REGISTERS. */
|
static void
|
static void
|
procfs_prepare_to_store (struct regcache *regcache)
|
procfs_prepare_to_store (struct regcache *regcache)
|
{
|
{
|
}
|
}
|
|
|
/* Fill buf with regset and return devctl cmd to do the setting. Return
|
/* Fill buf with regset and return devctl cmd to do the setting. Return
|
-1 if we fail to get the regset. Store size of regset in regsize. */
|
-1 if we fail to get the regset. Store size of regset in regsize. */
|
static int
|
static int
|
get_regset (int regset, char *buf, int bufsize, int *regsize)
|
get_regset (int regset, char *buf, int bufsize, int *regsize)
|
{
|
{
|
int dev_get, dev_set;
|
int dev_get, dev_set;
|
switch (regset)
|
switch (regset)
|
{
|
{
|
case NTO_REG_GENERAL:
|
case NTO_REG_GENERAL:
|
dev_get = DCMD_PROC_GETGREG;
|
dev_get = DCMD_PROC_GETGREG;
|
dev_set = DCMD_PROC_SETGREG;
|
dev_set = DCMD_PROC_SETGREG;
|
break;
|
break;
|
|
|
case NTO_REG_FLOAT:
|
case NTO_REG_FLOAT:
|
dev_get = DCMD_PROC_GETFPREG;
|
dev_get = DCMD_PROC_GETFPREG;
|
dev_set = DCMD_PROC_SETFPREG;
|
dev_set = DCMD_PROC_SETFPREG;
|
break;
|
break;
|
|
|
case NTO_REG_ALT:
|
case NTO_REG_ALT:
|
dev_get = DCMD_PROC_GETALTREG;
|
dev_get = DCMD_PROC_GETALTREG;
|
dev_set = DCMD_PROC_SETALTREG;
|
dev_set = DCMD_PROC_SETALTREG;
|
break;
|
break;
|
|
|
case NTO_REG_SYSTEM:
|
case NTO_REG_SYSTEM:
|
default:
|
default:
|
return -1;
|
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 -1;
|
|
|
return dev_set;
|
return dev_set;
|
}
|
}
|
|
|
void
|
void
|
procfs_store_registers (struct regcache *regcache, int regno)
|
procfs_store_registers (struct regcache *regcache, int regno)
|
{
|
{
|
union
|
union
|
{
|
{
|
procfs_greg greg;
|
procfs_greg greg;
|
procfs_fpreg fpreg;
|
procfs_fpreg fpreg;
|
procfs_altreg altreg;
|
procfs_altreg altreg;
|
}
|
}
|
reg;
|
reg;
|
unsigned off;
|
unsigned off;
|
int len, regset, regsize, dev_set, err;
|
int len, regset, regsize, dev_set, err;
|
char *data;
|
char *data;
|
|
|
if (ptid_equal (inferior_ptid, null_ptid))
|
if (ptid_equal (inferior_ptid, null_ptid))
|
return;
|
return;
|
procfs_set_thread (inferior_ptid);
|
procfs_set_thread (inferior_ptid);
|
|
|
if (regno == -1)
|
if (regno == -1)
|
{
|
{
|
for (regset = NTO_REG_GENERAL; regset < NTO_REG_END; regset++)
|
for (regset = NTO_REG_GENERAL; regset < NTO_REG_END; regset++)
|
{
|
{
|
dev_set = get_regset (regset, (char *) ®,
|
dev_set = get_regset (regset, (char *) ®,
|
sizeof (reg), ®size);
|
sizeof (reg), ®size);
|
if (dev_set == -1)
|
if (dev_set == -1)
|
continue;
|
continue;
|
|
|
if (nto_regset_fill (regcache, regset, (char *) ®) == -1)
|
if (nto_regset_fill (regcache, regset, (char *) ®) == -1)
|
continue;
|
continue;
|
|
|
err = devctl (ctl_fd, dev_set, ®, regsize, 0);
|
err = devctl (ctl_fd, dev_set, ®, regsize, 0);
|
if (err != EOK)
|
if (err != EOK)
|
fprintf_unfiltered (gdb_stderr,
|
fprintf_unfiltered (gdb_stderr,
|
"Warning unable to write regset %d: %s\n",
|
"Warning unable to write regset %d: %s\n",
|
regno, safe_strerror (err));
|
regno, safe_strerror (err));
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
regset = nto_regset_id (regno);
|
regset = nto_regset_id (regno);
|
if (regset == -1)
|
if (regset == -1)
|
return;
|
return;
|
|
|
dev_set = get_regset (regset, (char *) ®, sizeof (reg), ®size);
|
dev_set = get_regset (regset, (char *) ®, sizeof (reg), ®size);
|
if (dev_set == -1)
|
if (dev_set == -1)
|
return;
|
return;
|
|
|
len = nto_register_area (regno, regset, &off);
|
len = nto_register_area (regno, regset, &off);
|
|
|
if (len < 1)
|
if (len < 1)
|
return;
|
return;
|
|
|
regcache_raw_collect (regcache, regno, (char *) ® + off);
|
regcache_raw_collect (regcache, regno, (char *) ® + off);
|
|
|
err = devctl (ctl_fd, dev_set, ®, regsize, 0);
|
err = devctl (ctl_fd, dev_set, ®, regsize, 0);
|
if (err != EOK)
|
if (err != EOK)
|
fprintf_unfiltered (gdb_stderr,
|
fprintf_unfiltered (gdb_stderr,
|
"Warning unable to write regset %d: %s\n", regno,
|
"Warning unable to write regset %d: %s\n", regno,
|
safe_strerror (err));
|
safe_strerror (err));
|
}
|
}
|
}
|
}
|
|
|
static void
|
static void
|
notice_signals (void)
|
notice_signals (void)
|
{
|
{
|
int signo;
|
int signo;
|
|
|
for (signo = 1; signo < NSIG; signo++)
|
for (signo = 1; signo < NSIG; signo++)
|
{
|
{
|
if (signal_stop_state (target_signal_from_host (signo)) == 0
|
if (signal_stop_state (target_signal_from_host (signo)) == 0
|
&& signal_print_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)
|
&& signal_pass_state (target_signal_from_host (signo)) == 1)
|
sigdelset (&run.trace, signo);
|
sigdelset (&run.trace, signo);
|
else
|
else
|
sigaddset (&run.trace, signo);
|
sigaddset (&run.trace, signo);
|
}
|
}
|
}
|
}
|
|
|
/* When the user changes the state of gdb's signal handling via the
|
/* When the user changes the state of gdb's signal handling via the
|
"handle" command, this function gets called to see if any change
|
"handle" command, this function gets called to see if any change
|
in the /proc interface is required. It is also called internally
|
in the /proc interface is required. It is also called internally
|
by other /proc interface functions to initialize the state of
|
by other /proc interface functions to initialize the state of
|
the traced signal set. */
|
the traced signal set. */
|
static void
|
static void
|
procfs_notice_signals (ptid_t ptid)
|
procfs_notice_signals (ptid_t ptid)
|
{
|
{
|
sigemptyset (&run.trace);
|
sigemptyset (&run.trace);
|
notice_signals ();
|
notice_signals ();
|
}
|
}
|
|
|
static struct tidinfo *
|
static struct tidinfo *
|
procfs_thread_info (pid_t pid, short tid)
|
procfs_thread_info (pid_t pid, short tid)
|
{
|
{
|
/* NYI */
|
/* NYI */
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
char *
|
char *
|
procfs_pid_to_str (ptid_t ptid)
|
procfs_pid_to_str (ptid_t ptid)
|
{
|
{
|
static char buf[1024];
|
static char buf[1024];
|
int pid, tid, n;
|
int pid, tid, n;
|
struct tidinfo *tip;
|
struct tidinfo *tip;
|
|
|
pid = ptid_get_pid (ptid);
|
pid = ptid_get_pid (ptid);
|
tid = ptid_get_tid (ptid);
|
tid = ptid_get_tid (ptid);
|
|
|
n = snprintf (buf, 1023, "process %d", pid);
|
n = snprintf (buf, 1023, "process %d", pid);
|
|
|
#if 0 /* NYI */
|
#if 0 /* NYI */
|
tip = procfs_thread_info (pid, tid);
|
tip = procfs_thread_info (pid, tid);
|
if (tip != NULL)
|
if (tip != NULL)
|
snprintf (&buf[n], 1023, " (state = 0x%02x)", tip->state);
|
snprintf (&buf[n], 1023, " (state = 0x%02x)", tip->state);
|
#endif
|
#endif
|
|
|
return buf;
|
return buf;
|
}
|
}
|
|
|
static void
|
static void
|
init_procfs_ops (void)
|
init_procfs_ops (void)
|
{
|
{
|
procfs_ops.to_shortname = "procfs";
|
procfs_ops.to_shortname = "procfs";
|
procfs_ops.to_longname = "QNX Neutrino procfs child process";
|
procfs_ops.to_longname = "QNX Neutrino procfs child process";
|
procfs_ops.to_doc =
|
procfs_ops.to_doc =
|
"QNX Neutrino procfs child process (started by the \"run\" command).\n\
|
"QNX Neutrino procfs child process (started by the \"run\" command).\n\
|
target procfs <node>";
|
target procfs <node>";
|
procfs_ops.to_open = procfs_open;
|
procfs_ops.to_open = procfs_open;
|
procfs_ops.to_attach = procfs_attach;
|
procfs_ops.to_attach = procfs_attach;
|
procfs_ops.to_post_attach = procfs_post_attach;
|
procfs_ops.to_post_attach = procfs_post_attach;
|
procfs_ops.to_detach = procfs_detach;
|
procfs_ops.to_detach = procfs_detach;
|
procfs_ops.to_resume = procfs_resume;
|
procfs_ops.to_resume = procfs_resume;
|
procfs_ops.to_wait = procfs_wait;
|
procfs_ops.to_wait = procfs_wait;
|
procfs_ops.to_fetch_registers = procfs_fetch_registers;
|
procfs_ops.to_fetch_registers = procfs_fetch_registers;
|
procfs_ops.to_store_registers = procfs_store_registers;
|
procfs_ops.to_store_registers = procfs_store_registers;
|
procfs_ops.to_prepare_to_store = procfs_prepare_to_store;
|
procfs_ops.to_prepare_to_store = procfs_prepare_to_store;
|
procfs_ops.deprecated_xfer_memory = procfs_xfer_memory;
|
procfs_ops.deprecated_xfer_memory = procfs_xfer_memory;
|
procfs_ops.to_files_info = procfs_files_info;
|
procfs_ops.to_files_info = procfs_files_info;
|
procfs_ops.to_insert_breakpoint = procfs_insert_breakpoint;
|
procfs_ops.to_insert_breakpoint = procfs_insert_breakpoint;
|
procfs_ops.to_remove_breakpoint = procfs_remove_breakpoint;
|
procfs_ops.to_remove_breakpoint = procfs_remove_breakpoint;
|
procfs_ops.to_can_use_hw_breakpoint = procfs_can_use_hw_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_insert_hw_breakpoint = procfs_insert_hw_breakpoint;
|
procfs_ops.to_remove_hw_breakpoint = procfs_remove_breakpoint;
|
procfs_ops.to_remove_hw_breakpoint = procfs_remove_breakpoint;
|
procfs_ops.to_insert_watchpoint = procfs_insert_hw_watchpoint;
|
procfs_ops.to_insert_watchpoint = procfs_insert_hw_watchpoint;
|
procfs_ops.to_remove_watchpoint = procfs_remove_hw_watchpoint;
|
procfs_ops.to_remove_watchpoint = procfs_remove_hw_watchpoint;
|
procfs_ops.to_stopped_by_watchpoint = procfs_stopped_by_watchpoint;
|
procfs_ops.to_stopped_by_watchpoint = procfs_stopped_by_watchpoint;
|
procfs_ops.to_terminal_init = terminal_init_inferior;
|
procfs_ops.to_terminal_init = terminal_init_inferior;
|
procfs_ops.to_terminal_inferior = terminal_inferior;
|
procfs_ops.to_terminal_inferior = terminal_inferior;
|
procfs_ops.to_terminal_ours_for_output = terminal_ours_for_output;
|
procfs_ops.to_terminal_ours_for_output = terminal_ours_for_output;
|
procfs_ops.to_terminal_ours = terminal_ours;
|
procfs_ops.to_terminal_ours = terminal_ours;
|
procfs_ops.to_terminal_info = child_terminal_info;
|
procfs_ops.to_terminal_info = child_terminal_info;
|
procfs_ops.to_kill = procfs_kill_inferior;
|
procfs_ops.to_kill = procfs_kill_inferior;
|
procfs_ops.to_create_inferior = procfs_create_inferior;
|
procfs_ops.to_create_inferior = procfs_create_inferior;
|
procfs_ops.to_mourn_inferior = procfs_mourn_inferior;
|
procfs_ops.to_mourn_inferior = procfs_mourn_inferior;
|
procfs_ops.to_can_run = procfs_can_run;
|
procfs_ops.to_can_run = procfs_can_run;
|
procfs_ops.to_notice_signals = procfs_notice_signals;
|
procfs_ops.to_notice_signals = procfs_notice_signals;
|
procfs_ops.to_thread_alive = procfs_thread_alive;
|
procfs_ops.to_thread_alive = procfs_thread_alive;
|
procfs_ops.to_find_new_threads = procfs_find_new_threads;
|
procfs_ops.to_find_new_threads = procfs_find_new_threads;
|
procfs_ops.to_pid_to_str = procfs_pid_to_str;
|
procfs_ops.to_pid_to_str = procfs_pid_to_str;
|
procfs_ops.to_stop = procfs_stop;
|
procfs_ops.to_stop = procfs_stop;
|
procfs_ops.to_stratum = process_stratum;
|
procfs_ops.to_stratum = process_stratum;
|
procfs_ops.to_has_all_memory = 1;
|
procfs_ops.to_has_all_memory = 1;
|
procfs_ops.to_has_memory = 1;
|
procfs_ops.to_has_memory = 1;
|
procfs_ops.to_has_stack = 1;
|
procfs_ops.to_has_stack = 1;
|
procfs_ops.to_has_registers = 1;
|
procfs_ops.to_has_registers = 1;
|
procfs_ops.to_has_execution = 1;
|
procfs_ops.to_has_execution = 1;
|
procfs_ops.to_magic = OPS_MAGIC;
|
procfs_ops.to_magic = OPS_MAGIC;
|
procfs_ops.to_have_continuable_watchpoint = 1;
|
procfs_ops.to_have_continuable_watchpoint = 1;
|
}
|
}
|
|
|
#define OSTYPE_NTO 1
|
#define OSTYPE_NTO 1
|
|
|
void
|
void
|
_initialize_procfs (void)
|
_initialize_procfs (void)
|
{
|
{
|
sigset_t set;
|
sigset_t set;
|
|
|
init_procfs_ops ();
|
init_procfs_ops ();
|
add_target (&procfs_ops);
|
add_target (&procfs_ops);
|
|
|
/* We use SIGUSR1 to gain control after we block waiting for a process.
|
/* We use SIGUSR1 to gain control after we block waiting for a process.
|
We use sigwaitevent to wait. */
|
We use sigwaitevent to wait. */
|
sigemptyset (&set);
|
sigemptyset (&set);
|
sigaddset (&set, SIGUSR1);
|
sigaddset (&set, SIGUSR1);
|
sigprocmask (SIG_BLOCK, &set, NULL);
|
sigprocmask (SIG_BLOCK, &set, NULL);
|
|
|
/* Set up trace and fault sets, as gdb expects them. */
|
/* Set up trace and fault sets, as gdb expects them. */
|
sigemptyset (&run.trace);
|
sigemptyset (&run.trace);
|
|
|
/* Stuff some information. */
|
/* Stuff some information. */
|
nto_cpuinfo_flags = SYSPAGE_ENTRY (cpuinfo)->flags;
|
nto_cpuinfo_flags = SYSPAGE_ENTRY (cpuinfo)->flags;
|
nto_cpuinfo_valid = 1;
|
nto_cpuinfo_valid = 1;
|
|
|
add_info ("pidlist", procfs_pidlist, _("pidlist"));
|
add_info ("pidlist", procfs_pidlist, _("pidlist"));
|
add_info ("meminfo", procfs_meminfo, _("memory information"));
|
add_info ("meminfo", procfs_meminfo, _("memory information"));
|
|
|
nto_is_nto_target = procfs_is_nto_target;
|
nto_is_nto_target = procfs_is_nto_target;
|
}
|
}
|
|
|
|
|
static int
|
static int
|
procfs_hw_watchpoint (int addr, int len, int type)
|
procfs_hw_watchpoint (int addr, int len, int type)
|
{
|
{
|
procfs_break brk;
|
procfs_break brk;
|
|
|
switch (type)
|
switch (type)
|
{
|
{
|
case 1: /* Read. */
|
case 1: /* Read. */
|
brk.type = _DEBUG_BREAK_RD;
|
brk.type = _DEBUG_BREAK_RD;
|
break;
|
break;
|
case 2: /* Read/Write. */
|
case 2: /* Read/Write. */
|
brk.type = _DEBUG_BREAK_RW;
|
brk.type = _DEBUG_BREAK_RW;
|
break;
|
break;
|
default: /* Modify. */
|
default: /* Modify. */
|
/* FIXME: brk.type = _DEBUG_BREAK_RWM gives EINVAL for some reason. */
|
/* FIXME: brk.type = _DEBUG_BREAK_RWM gives EINVAL for some reason. */
|
brk.type = _DEBUG_BREAK_RW;
|
brk.type = _DEBUG_BREAK_RW;
|
}
|
}
|
brk.type |= _DEBUG_BREAK_HW; /* Always ask for HW. */
|
brk.type |= _DEBUG_BREAK_HW; /* Always ask for HW. */
|
brk.addr = addr;
|
brk.addr = addr;
|
brk.size = len;
|
brk.size = len;
|
|
|
errno = devctl (ctl_fd, DCMD_PROC_BREAK, &brk, sizeof (brk), 0);
|
errno = devctl (ctl_fd, DCMD_PROC_BREAK, &brk, sizeof (brk), 0);
|
if (errno != EOK)
|
if (errno != EOK)
|
{
|
{
|
perror ("Failed to set hardware watchpoint");
|
perror ("Failed to set hardware watchpoint");
|
return -1;
|
return -1;
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static int
|
static int
|
procfs_can_use_hw_breakpoint (int type, int cnt, int othertype)
|
procfs_can_use_hw_breakpoint (int type, int cnt, int othertype)
|
{
|
{
|
return 1;
|
return 1;
|
}
|
}
|
|
|
static int
|
static int
|
procfs_remove_hw_watchpoint (CORE_ADDR addr, int len, int type)
|
procfs_remove_hw_watchpoint (CORE_ADDR addr, int len, int type)
|
{
|
{
|
return procfs_hw_watchpoint (addr, -1, type);
|
return procfs_hw_watchpoint (addr, -1, type);
|
}
|
}
|
|
|
static int
|
static int
|
procfs_insert_hw_watchpoint (CORE_ADDR addr, int len, int type)
|
procfs_insert_hw_watchpoint (CORE_ADDR addr, int len, int type)
|
{
|
{
|
return procfs_hw_watchpoint (addr, len, type);
|
return procfs_hw_watchpoint (addr, len, type);
|
}
|
}
|
|
|
static int
|
static int
|
procfs_stopped_by_watchpoint (void)
|
procfs_stopped_by_watchpoint (void)
|
{
|
{
|
return 0;
|
return 0;
|
}
|
}
|
|
|
