/* Low level interface for debugging Solaris threads for GDB, the GNU debugger.
- Copyright 1996 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
/* This module implements a sort of half target that sits between the
machine-independent parts of GDB and the /proc interface (procfs.c) to
procfs.c. */
#include "defs.h"
-
-/* Undefine gregset_t and fpregset_t to avoid conflict with defs in xm file. */
-
-#ifdef gregset_t
-#undef gregset_t
-#endif
-
-#ifdef fpregset_t
-#undef fpregset_t
-#endif
-
#include <thread.h>
#include <proc_service.h>
#include <thread_db.h>
#include "target.h"
#include "inferior.h"
#include <fcntl.h>
-#include <unistd.h>
#include <sys/stat.h>
#include <dlfcn.h>
+#include "gdbcmd.h"
+#include "gdbcore.h"
+
+extern struct target_ops sol_thread_ops; /* Forward declaration */
+extern struct target_ops sol_core_ops; /* Forward declaration */
+
+/* place to store core_ops before we overwrite it */
+static struct target_ops orig_core_ops;
-extern struct target_ops sol_thread_ops; /* Forward declaration */
+struct target_ops sol_thread_ops;
+struct target_ops sol_core_ops;
extern int procfs_suppress_run;
-extern struct target_ops procfs_ops; /* target vector for procfs.c */
-
-/* Note that these prototypes differ slightly from those used in procfs.c
- for of two reasons. One, we can't use gregset_t, as that's got a whole
- different meaning under Solaris (also, see above). Two, we can't use the
- pointer form here as these are actually arrays of ints (for Sparc's at
- least), and are automatically coerced into pointers to ints when used as
- parameters. That makes it impossible to avoid a compiler warning when
- passing pr{g fp}regset_t's from a parameter to an argument of one of
- these functions. */
-
-extern void supply_gregset PARAMS ((const prgregset_t));
-extern void fill_gregset PARAMS ((prgregset_t, int));
-extern void supply_fpregset PARAMS ((const prfpregset_t));
-extern void fill_fpregset PARAMS ((prfpregset_t, int));
+extern struct target_ops procfs_ops; /* target vector for procfs.c */
+extern struct target_ops core_ops; /* target vector for corelow.c */
+extern char *procfs_pid_to_str (int pid);
+
+/* Prototypes for supply_gregset etc. */
+#include "gregset.h"
/* This struct is defined by us, but mainly used for the proc_service interface.
We don't have much use for it, except as a handy place to get a real pid
for memory accesses. */
struct ps_prochandle
-{
- pid_t pid;
-};
+ {
+ pid_t pid;
+ };
struct string_map
-{
- int num;
- char *str;
-};
+ {
+ int num;
+ char *str;
+ };
static struct ps_prochandle main_ph;
static td_thragent_t *main_ta;
static int sol_thread_active = 0;
-static struct cleanup * save_inferior_pid PARAMS ((void));
-static void restore_inferior_pid PARAMS ((int pid));
-static char *td_err_string PARAMS ((td_err_e errcode));
-static char *td_state_string PARAMS ((td_thr_state_e statecode));
-static int thread_to_lwp PARAMS ((int thread_id, int default_lwp));
-static void sol_thread_resume PARAMS ((int pid, int step,
- enum target_signal signo));
-static int lwp_to_thread PARAMS ((int lwp));
-
-#define THREAD_FLAG 0x80000000
-#define is_thread(ARG) (((ARG) & THREAD_FLAG) != 0)
-#define is_lwp(ARG) (((ARG) & THREAD_FLAG) == 0)
-#define GET_LWP(LWP_ID) (TIDGET(LWP_ID))
-#define GET_THREAD(THREAD_ID) (((THREAD_ID) >> 16) & 0x7fff)
-#define BUILD_LWP(LWP_ID, PID) ((LWP_ID) << 16 | (PID))
-#define BUILD_THREAD(THREAD_ID, PID) (THREAD_FLAG | BUILD_LWP (THREAD_ID, PID))
+static struct cleanup *save_inferior_pid (void);
+static void restore_inferior_pid (void *pid);
+static char *td_err_string (td_err_e errcode);
+static char *td_state_string (td_thr_state_e statecode);
+static int thread_to_lwp (int thread_id, int default_lwp);
+static void sol_thread_resume (int pid, int step, enum target_signal signo);
+static int lwp_to_thread (int lwp);
+static int sol_thread_alive (int pid);
+static void sol_core_close (int quitting);
+
+static void init_sol_thread_ops (void);
+static void init_sol_core_ops (void);
+
+/* Default definitions: These must be defined in tm.h
+ if they are to be shared with a process module such as procfs. */
+
+#define THREAD_FLAG 0x80000000
+#define is_thread(ARG) (((ARG) & THREAD_FLAG) != 0)
+#define is_lwp(ARG) (((ARG) & THREAD_FLAG) == 0)
+#define GET_LWP(PID) TIDGET (PID)
+#define GET_THREAD(PID) TIDGET (PID)
+#define BUILD_LWP(TID, PID) MERGEPID (PID, TID)
+
+#define BUILD_THREAD(TID, PID) (MERGEPID (PID, TID) | THREAD_FLAG)
/* Pointers to routines from lithread_db resolved by dlopen() */
-static void
- (*p_td_log) (const int on_off);
-static td_err_e
- (*p_td_ta_new) (const struct ps_prochandle *ph_p, td_thragent_t **ta_pp);
-static td_err_e
- (*p_td_ta_delete) (td_thragent_t *ta_p);
-static td_err_e
- (*p_td_init) (void);
-static td_err_e
- (*p_td_ta_get_ph) (const td_thragent_t *ta_p, struct ps_prochandle **ph_pp);
-static td_err_e
- (*p_td_ta_get_nthreads) (const td_thragent_t *ta_p, int *nthread_p);
-static td_err_e
- (*p_td_ta_tsd_iter) (const td_thragent_t *ta_p, td_key_iter_f *cb, void *cbdata_p);
-static td_err_e
- (*p_td_ta_thr_iter) (const td_thragent_t *ta_p, td_thr_iter_f *cb, void *cbdata_p, td_thr_state_e state,
- int ti_pri, sigset_t *ti_sigmask_p, unsigned ti_user_flags);
-static td_err_e
- (*p_td_thr_validate) (const td_thrhandle_t *th_p);
-static td_err_e
- (*p_td_thr_tsd) (const td_thrhandle_t *th_p, const thread_key_t key, void **data_pp);
-static td_err_e
- (*p_td_thr_get_info) (const td_thrhandle_t *th_p, td_thrinfo_t *ti_p);
-static td_err_e
- (*p_td_thr_getfpregs) (const td_thrhandle_t *th_p, prfpregset_t *fpregset);
-static td_err_e
- (*p_td_thr_getxregsize) (const td_thrhandle_t *th_p, int *xregsize);
-static td_err_e
- (*p_td_thr_getxregs) (const td_thrhandle_t *th_p, const caddr_t xregset);
-static td_err_e
- (*p_td_thr_sigsetmask) (const td_thrhandle_t *th_p, const sigset_t ti_sigmask);
-static td_err_e
- (*p_td_thr_setprio) (const td_thrhandle_t *th_p, const int ti_pri);
-static td_err_e
- (*p_td_thr_setsigpending) (const td_thrhandle_t *th_p, const uchar_t ti_pending_flag, const sigset_t ti_pending);
-static td_err_e
- (*p_td_thr_setfpregs) (const td_thrhandle_t *th_p, const prfpregset_t *fpregset);
-static td_err_e
- (*p_td_thr_setxregs) (const td_thrhandle_t *th_p, const caddr_t xregset);
-static td_err_e
- (*p_td_ta_map_id2thr) (const td_thragent_t *ta_p, thread_t tid, td_thrhandle_t *th_p);
-static td_err_e
- (*p_td_ta_map_lwp2thr) (const td_thragent_t *ta_p, lwpid_t lwpid, td_thrhandle_t *th_p);
-static td_err_e
- (*p_td_thr_getgregs) (const td_thrhandle_t *th_p, prgregset_t regset);
-static td_err_e
- (*p_td_thr_setgregs) (const td_thrhandle_t *th_p, const prgregset_t regset);
-\f
+static void (*p_td_log) (const int on_off);
+static td_err_e (*p_td_ta_new) (const struct ps_prochandle * ph_p,
+ td_thragent_t ** ta_pp);
+static td_err_e (*p_td_ta_delete) (td_thragent_t * ta_p);
+static td_err_e (*p_td_init) (void);
+static td_err_e (*p_td_ta_get_ph) (const td_thragent_t * ta_p,
+ struct ps_prochandle ** ph_pp);
+static td_err_e (*p_td_ta_get_nthreads) (const td_thragent_t * ta_p,
+ int *nthread_p);
+static td_err_e (*p_td_ta_tsd_iter) (const td_thragent_t * ta_p,
+ td_key_iter_f * cb,
+ void *cbdata_p);
+static td_err_e (*p_td_ta_thr_iter) (const td_thragent_t * ta_p,
+ td_thr_iter_f * cb,
+ void *cbdata_p,
+ td_thr_state_e state,
+ int ti_pri,
+ sigset_t * ti_sigmask_p,
+ unsigned ti_user_flags);
+static td_err_e (*p_td_thr_validate) (const td_thrhandle_t * th_p);
+static td_err_e (*p_td_thr_tsd) (const td_thrhandle_t * th_p,
+ const thread_key_t key,
+ void **data_pp);
+static td_err_e (*p_td_thr_get_info) (const td_thrhandle_t * th_p,
+ td_thrinfo_t * ti_p);
+static td_err_e (*p_td_thr_getfpregs) (const td_thrhandle_t * th_p,
+ prfpregset_t * fpregset);
+static td_err_e (*p_td_thr_getxregsize) (const td_thrhandle_t * th_p,
+ int *xregsize);
+static td_err_e (*p_td_thr_getxregs) (const td_thrhandle_t * th_p,
+ const caddr_t xregset);
+static td_err_e (*p_td_thr_sigsetmask) (const td_thrhandle_t * th_p,
+ const sigset_t ti_sigmask);
+static td_err_e (*p_td_thr_setprio) (const td_thrhandle_t * th_p,
+ const int ti_pri);
+static td_err_e (*p_td_thr_setsigpending) (const td_thrhandle_t * th_p,
+ const uchar_t ti_pending_flag,
+ const sigset_t ti_pending);
+static td_err_e (*p_td_thr_setfpregs) (const td_thrhandle_t * th_p,
+ const prfpregset_t * fpregset);
+static td_err_e (*p_td_thr_setxregs) (const td_thrhandle_t * th_p,
+ const caddr_t xregset);
+static td_err_e (*p_td_ta_map_id2thr) (const td_thragent_t * ta_p,
+ thread_t tid,
+ td_thrhandle_t * th_p);
+static td_err_e (*p_td_ta_map_lwp2thr) (const td_thragent_t * ta_p,
+ lwpid_t lwpid,
+ td_thrhandle_t * th_p);
+static td_err_e (*p_td_thr_getgregs) (const td_thrhandle_t * th_p,
+ prgregset_t regset);
+static td_err_e (*p_td_thr_setgregs) (const td_thrhandle_t * th_p,
+ const prgregset_t regset);
+
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- td_err_string - Convert a thread_db error code to a string
+ td_err_string - Convert a thread_db error code to a string
-SYNOPSIS
+ SYNOPSIS
- char * td_err_string (errcode)
+ char * td_err_string (errcode)
-DESCRIPTION
+ DESCRIPTION
- Return the thread_db error string associated with errcode. If errcode
- is unknown, then return a message.
+ Return the thread_db error string associated with errcode. If errcode
+ is unknown, then return a message.
*/
static char *
-td_err_string (errcode)
- td_err_e errcode;
+td_err_string (td_err_e errcode)
{
static struct string_map
- td_err_table[] = {
- {TD_OK, "generic \"call succeeded\""},
- {TD_ERR, "generic error."},
- {TD_NOTHR, "no thread can be found to satisfy query"},
- {TD_NOSV, "no synch. variable can be found to satisfy query"},
- {TD_NOLWP, "no lwp can be found to satisfy query"},
- {TD_BADPH, "invalid process handle"},
- {TD_BADTH, "invalid thread handle"},
- {TD_BADSH, "invalid synchronization handle"},
- {TD_BADTA, "invalid thread agent"},
- {TD_BADKEY, "invalid key"},
- {TD_NOMSG, "td_thr_event_getmsg() called when there was no message"},
- {TD_NOFPREGS, "FPU register set not available for given thread"},
- {TD_NOLIBTHREAD, "application not linked with libthread"},
- {TD_NOEVENT, "requested event is not supported"},
- {TD_NOCAPAB, "capability not available"},
- {TD_DBERR, "Debugger service failed"},
- {TD_NOAPLIC, "Operation not applicable to"},
- {TD_NOTSD, "No thread specific data for this thread"},
- {TD_MALLOC, "Malloc failed"},
- {TD_PARTIALREG, "Only part of register set was writen/read"},
- {TD_NOXREGS, "X register set not available for given thread"}
- };
+ td_err_table[] =
+ {
+ {TD_OK, "generic \"call succeeded\""},
+ {TD_ERR, "generic error."},
+ {TD_NOTHR, "no thread can be found to satisfy query"},
+ {TD_NOSV, "no synch. variable can be found to satisfy query"},
+ {TD_NOLWP, "no lwp can be found to satisfy query"},
+ {TD_BADPH, "invalid process handle"},
+ {TD_BADTH, "invalid thread handle"},
+ {TD_BADSH, "invalid synchronization handle"},
+ {TD_BADTA, "invalid thread agent"},
+ {TD_BADKEY, "invalid key"},
+ {TD_NOMSG, "td_thr_event_getmsg() called when there was no message"},
+ {TD_NOFPREGS, "FPU register set not available for given thread"},
+ {TD_NOLIBTHREAD, "application not linked with libthread"},
+ {TD_NOEVENT, "requested event is not supported"},
+ {TD_NOCAPAB, "capability not available"},
+ {TD_DBERR, "Debugger service failed"},
+ {TD_NOAPLIC, "Operation not applicable to"},
+ {TD_NOTSD, "No thread specific data for this thread"},
+ {TD_MALLOC, "Malloc failed"},
+ {TD_PARTIALREG, "Only part of register set was writen/read"},
+ {TD_NOXREGS, "X register set not available for given thread"}
+ };
const int td_err_size = sizeof td_err_table / sizeof (struct string_map);
int i;
static char buf[50];
for (i = 0; i < td_err_size; i++)
if (td_err_table[i].num == errcode)
return td_err_table[i].str;
-
+
sprintf (buf, "Unknown thread_db error code: %d", errcode);
return buf;
\f
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- td_state_string - Convert a thread_db state code to a string
+ td_state_string - Convert a thread_db state code to a string
-SYNOPSIS
+ SYNOPSIS
- char * td_state_string (statecode)
+ char * td_state_string (statecode)
-DESCRIPTION
+ DESCRIPTION
- Return the thread_db state string associated with statecode. If
- statecode is unknown, then return a message.
+ Return the thread_db state string associated with statecode. If
+ statecode is unknown, then return a message.
*/
static char *
-td_state_string (statecode)
- td_thr_state_e statecode;
+td_state_string (td_thr_state_e statecode)
{
static struct string_map
- td_thr_state_table[] = {
- {TD_THR_ANY_STATE, "any state"},
- {TD_THR_UNKNOWN, "unknown"},
- {TD_THR_STOPPED, "stopped"},
- {TD_THR_RUN, "run"},
- {TD_THR_ACTIVE, "active"},
- {TD_THR_ZOMBIE, "zombie"},
- {TD_THR_SLEEP, "sleep"},
- {TD_THR_STOPPED_ASLEEP, "stopped asleep"}
- };
+ td_thr_state_table[] =
+ {
+ {TD_THR_ANY_STATE, "any state"},
+ {TD_THR_UNKNOWN, "unknown"},
+ {TD_THR_STOPPED, "stopped"},
+ {TD_THR_RUN, "run"},
+ {TD_THR_ACTIVE, "active"},
+ {TD_THR_ZOMBIE, "zombie"},
+ {TD_THR_SLEEP, "sleep"},
+ {TD_THR_STOPPED_ASLEEP, "stopped asleep"}
+ };
const int td_thr_state_table_size = sizeof td_thr_state_table / sizeof (struct string_map);
int i;
static char buf[50];
for (i = 0; i < td_thr_state_table_size; i++)
if (td_thr_state_table[i].num == statecode)
return td_thr_state_table[i].str;
-
+
sprintf (buf, "Unknown thread_db state code: %d", statecode);
return buf;
\f
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- thread_to_lwp - Convert a Posix or Solaris thread id to a LWP id.
+ thread_to_lwp - Convert a Posix or Solaris thread id to a LWP id.
-SYNOPSIS
+ SYNOPSIS
- int thread_to_lwp (thread_id, default_lwp)
+ int thread_to_lwp (thread_id, default_lwp)
-DESCRIPTION
+ DESCRIPTION
- This function converts a Posix or Solaris thread id to a lightweight
- process id. If thread_id is non-existent, that's an error. If it's
- an inactive thread, then we return default_lwp.
+ This function converts a Posix or Solaris thread id to a lightweight
+ process id. If thread_id is non-existent, that's an error. If it's
+ an inactive thread, then we return default_lwp.
-NOTES
+ NOTES
- This function probably shouldn't call error()...
+ This function probably shouldn't call error()...
*/
static int
-thread_to_lwp (thread_id, default_lwp)
- int thread_id;
- int default_lwp;
+thread_to_lwp (int thread_id, int default_lwp)
{
td_thrinfo_t ti;
td_thrhandle_t th;
td_err_e val;
- int pid;
- int lwp;
if (is_lwp (thread_id))
- return thread_id; /* It's already an LWP id */
+ return thread_id; /* It's already an LWP id */
/* It's a thread. Convert to lwp */
- pid = PIDGET (thread_id);
- thread_id = GET_THREAD(thread_id);
-
- val = p_td_ta_map_id2thr (main_ta, thread_id, &th);
- if (val != TD_OK)
+ val = p_td_ta_map_id2thr (main_ta, GET_THREAD (thread_id), &th);
+ if (val == TD_NOTHR)
+ return -1; /* thread must have terminated */
+ else if (val != TD_OK)
error ("thread_to_lwp: td_ta_map_id2thr %s", td_err_string (val));
val = p_td_thr_get_info (&th, &ti);
-
- if (val != TD_OK)
+ if (val == TD_NOTHR)
+ return -1; /* thread must have terminated */
+ else if (val != TD_OK)
error ("thread_to_lwp: td_thr_get_info: %s", td_err_string (val));
if (ti.ti_state != TD_THR_ACTIVE)
error ("thread_to_lwp: thread state not active: %s",
td_state_string (ti.ti_state));
}
-
- lwp = BUILD_LWP (ti.ti_lid, pid);
- return lwp;
+ return BUILD_LWP (ti.ti_lid, PIDGET (thread_id));
}
\f
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- lwp_to_thread - Convert a LWP id to a Posix or Solaris thread id.
+ lwp_to_thread - Convert a LWP id to a Posix or Solaris thread id.
-SYNOPSIS
+ SYNOPSIS
- int lwp_to_thread (lwp_id)
+ int lwp_to_thread (lwp_id)
-DESCRIPTION
+ DESCRIPTION
- This function converts a lightweight process id to a Posix or Solaris
- thread id. If thread_id is non-existent, that's an error.
+ This function converts a lightweight process id to a Posix or Solaris
+ thread id. If thread_id is non-existent, that's an error.
-NOTES
+ NOTES
- This function probably shouldn't call error()...
+ This function probably shouldn't call error()...
*/
static int
-lwp_to_thread (lwp)
- int lwp;
+lwp_to_thread (int lwp)
{
td_thrinfo_t ti;
td_thrhandle_t th;
td_err_e val;
- int pid;
- int thread_id;
if (is_thread (lwp))
return lwp; /* It's already a thread id */
/* It's an lwp. Convert it to a thread id. */
- pid = PIDGET (lwp);
- lwp = GET_LWP (lwp);
+ if (!sol_thread_alive (lwp))
+ return -1; /* defunct lwp */
- val = p_td_ta_map_lwp2thr (main_ta, lwp, &th);
- if (val != TD_OK)
- error ("lwp_to_thread: td_thr_get_info: %s.", td_err_string (val));
+ val = p_td_ta_map_lwp2thr (main_ta, GET_LWP (lwp), &th);
+ if (val == TD_NOTHR)
+ return -1; /* thread must have terminated */
+ else if (val != TD_OK)
+ error ("lwp_to_thread: td_ta_map_lwp2thr: %s.", td_err_string (val));
- val = p_td_thr_get_info (&th, &ti);
+ val = p_td_thr_validate (&th);
+ if (val == TD_NOTHR)
+ return lwp; /* libthread doesn't know about it;
+ just return lwp */
+ else if (val != TD_OK)
+ error ("lwp_to_thread: td_thr_validate: %s.", td_err_string (val));
- if (val != TD_OK)
+ val = p_td_thr_get_info (&th, &ti);
+ if (val == TD_NOTHR)
+ return -1; /* thread must have terminated */
+ else if (val != TD_OK)
error ("lwp_to_thread: td_thr_get_info: %s.", td_err_string (val));
- thread_id = BUILD_THREAD (ti.ti_tid, pid);
-
- return thread_id;
+ return BUILD_THREAD (ti.ti_tid, PIDGET (lwp));
}
\f
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- save_inferior_pid - Save inferior_pid on the cleanup list
- restore_inferior_pid - Restore inferior_pid from the cleanup list
+ save_inferior_pid - Save inferior_pid on the cleanup list
+ restore_inferior_pid - Restore inferior_pid from the cleanup list
-SYNOPSIS
+ SYNOPSIS
- struct cleanup *save_inferior_pid ()
- void restore_inferior_pid (int pid)
+ struct cleanup *save_inferior_pid ()
+ void restore_inferior_pid (int pid)
-DESCRIPTION
+ DESCRIPTION
- These two functions act in unison to restore inferior_pid in
- case of an error.
+ These two functions act in unison to restore inferior_pid in
+ case of an error.
-NOTES
+ NOTES
- inferior_pid is a global variable that needs to be changed by many of
- these routines before calling functions in procfs.c. In order to
- guarantee that inferior_pid gets restored (in case of errors), you
- need to call save_inferior_pid before changing it. At the end of the
- function, you should invoke do_cleanups to restore it.
+ inferior_pid is a global variable that needs to be changed by many of
+ these routines before calling functions in procfs.c. In order to
+ guarantee that inferior_pid gets restored (in case of errors), you
+ need to call save_inferior_pid before changing it. At the end of the
+ function, you should invoke do_cleanups to restore it.
*/
static struct cleanup *
-save_inferior_pid ()
+save_inferior_pid (void)
{
- return make_cleanup (restore_inferior_pid, inferior_pid);
+ return make_cleanup (restore_inferior_pid, (void *) inferior_pid);
}
static void
-restore_inferior_pid (pid)
- int pid;
+restore_inferior_pid (void *pid)
{
- inferior_pid = pid;
+ inferior_pid = (int) pid;
}
\f
/* ARGSUSED */
static void
-sol_thread_open (arg, from_tty)
- char *arg;
- int from_tty;
+sol_thread_open (char *arg, int from_tty)
{
procfs_ops.to_open (arg, from_tty);
}
and wait for the trace-trap that results from attaching. */
static void
-sol_thread_attach (args, from_tty)
- char *args;
- int from_tty;
+sol_thread_attach (char *args, int from_tty)
{
procfs_ops.to_attach (args, from_tty);
+ /* Must get symbols from solibs before libthread_db can run! */
+ SOLIB_ADD ((char *) 0, from_tty, (struct target_ops *) 0);
+
+ if (sol_thread_active)
+ {
+ printf_filtered ("sol-thread active.\n");
+ main_ph.pid = inferior_pid; /* Save for xfer_memory */
+ push_target (&sol_thread_ops);
+ inferior_pid = lwp_to_thread (inferior_pid);
+ if (inferior_pid == -1)
+ inferior_pid = main_ph.pid;
+ else
+ add_thread (inferior_pid);
+ }
/* XXX - might want to iterate over all the threads and register them. */
}
started via the normal ptrace (PTRACE_TRACEME). */
static void
-sol_thread_detach (args, from_tty)
- char *args;
- int from_tty;
+sol_thread_detach (char *args, int from_tty)
{
+ inferior_pid = PIDGET (main_ph.pid);
+ unpush_target (&sol_thread_ops);
procfs_ops.to_detach (args, from_tty);
}
for procfs. */
static void
-sol_thread_resume (pid, step, signo)
- int pid;
- int step;
- enum target_signal signo;
+sol_thread_resume (int pid, int step, enum target_signal signo)
{
struct cleanup *old_chain;
old_chain = save_inferior_pid ();
inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid);
+ if (inferior_pid == -1)
+ inferior_pid = procfs_first_available ();
if (pid != -1)
{
+ int save_pid = pid;
+
pid = thread_to_lwp (pid, -2);
if (pid == -2) /* Inactive thread */
error ("This version of Solaris can't start inactive threads.");
+ if (info_verbose && pid == -1)
+ warning ("Specified thread %d seems to have terminated",
+ GET_THREAD (save_pid));
}
procfs_ops.to_resume (pid, step, signo);
to a LWP id, and vice versa on the way out. */
static int
-sol_thread_wait (pid, ourstatus)
- int pid;
- struct target_waitstatus *ourstatus;
+sol_thread_wait (int pid, struct target_waitstatus *ourstatus)
{
int rtnval;
int save_pid;
old_chain = save_inferior_pid ();
inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid);
+ if (inferior_pid == -1)
+ inferior_pid = procfs_first_available ();
if (pid != -1)
- pid = thread_to_lwp (pid, -1);
+ {
+ int save_pid = pid;
+
+ pid = thread_to_lwp (pid, -2);
+ if (pid == -2) /* Inactive thread */
+ error ("This version of Solaris can't start inactive threads.");
+ if (info_verbose && pid == -1)
+ warning ("Specified thread %d seems to have terminated",
+ GET_THREAD (save_pid));
+ }
rtnval = procfs_ops.to_wait (pid, ourstatus);
- if (rtnval != save_pid
- && !in_thread_list (rtnval))
+ if (ourstatus->kind != TARGET_WAITKIND_EXITED)
{
- fprintf_unfiltered (gdb_stderr, "[New %s]\n",
- target_pid_to_str (rtnval));
- add_thread (rtnval);
+ /* Map the LWP of interest back to the appropriate thread ID */
+ rtnval = lwp_to_thread (rtnval);
+ if (rtnval == -1)
+ rtnval = save_pid;
+
+ /* See if we have a new thread */
+ if (is_thread (rtnval)
+ && rtnval != save_pid
+ && !in_thread_list (rtnval))
+ {
+ printf_filtered ("[New %s]\n", target_pid_to_str (rtnval));
+ add_thread (rtnval);
+ }
}
/* During process initialization, we may get here without the thread package
being initialized, since that can only happen after we've found the shared
libs. */
- /* Map the LWP of interest back to the appropriate thread ID */
-
- rtnval = lwp_to_thread (rtnval);
-
do_cleanups (old_chain);
return rtnval;
}
static void
-sol_thread_fetch_registers (regno)
- int regno;
+sol_thread_fetch_registers (int regno)
{
thread_t thread;
td_thrhandle_t thandle;
caddr_t xregset;
#endif
- /* Convert inferior_pid into a td_thrhandle_t */
+ if (!is_thread (inferior_pid))
+ { /* LWP: pass the request on to procfs.c */
+ if (target_has_execution)
+ procfs_ops.to_fetch_registers (regno);
+ else
+ orig_core_ops.to_fetch_registers (regno);
+ return;
+ }
+
+ /* Solaris thread: convert inferior_pid into a td_thrhandle_t */
thread = GET_THREAD (inferior_pid);
because the td routines call ps_lget* which affect the values stored in the
registers array. */
- supply_gregset (gregset);
- supply_fpregset (fpregset);
+ supply_gregset ((gdb_gregset_t *) &gregset);
+ supply_fpregset ((gdb_fpregset_t *) &fpregset);
#if 0
/* thread_db doesn't seem to handle this right */
}
static void
-sol_thread_store_registers (regno)
- int regno;
+sol_thread_store_registers (int regno)
{
thread_t thread;
td_thrhandle_t thandle;
td_err_e val;
- prgregset_t regset;
+ prgregset_t gregset;
prfpregset_t fpregset;
#if 0
int xregsize;
caddr_t xregset;
#endif
- /* Convert inferior_pid into a td_thrhandle_t */
+ if (!is_thread (inferior_pid))
+ { /* LWP: pass the request on to procfs.c */
+ procfs_ops.to_store_registers (regno);
+ return;
+ }
+
+ /* Solaris thread: convert inferior_pid into a td_thrhandle_t */
thread = GET_THREAD (inferior_pid);
if (regno != -1)
{ /* Not writing all the regs */
- val = p_td_thr_getgregs (&thandle, regset);
+ /* save new register value */
+ char old_value[REGISTER_SIZE];
+ memcpy (old_value, ®isters[REGISTER_BYTE (regno)], REGISTER_SIZE);
+
+ val = p_td_thr_getgregs (&thandle, gregset);
if (val != TD_OK)
error ("sol_thread_store_registers: td_thr_getgregs %s",
td_err_string (val));
error ("sol_thread_store_registers: td_thr_getfpregs %s",
td_err_string (val));
+ /* restore new register value */
+ memcpy (®isters[REGISTER_BYTE (regno)], old_value, REGISTER_SIZE);
+
#if 0
/* thread_db doesn't seem to handle this right */
val = td_thr_getxregsize (&thandle, &xregsize);
#endif
}
- fill_gregset (regset, regno);
- fill_fpregset (fpregset, regno);
+ fill_gregset ((gdb_gregset_t *) &gregset, regno);
+ fill_fpregset ((gdb_fpregset_t *) &fpregset, regno);
- val = p_td_thr_setgregs (&thandle, regset);
+ val = p_td_thr_setgregs (&thandle, gregset);
if (val != TD_OK)
error ("sol_thread_store_registers: td_thr_setgregs %s",
td_err_string (val));
debugged. */
static void
-sol_thread_prepare_to_store ()
+sol_thread_prepare_to_store (void)
{
procfs_ops.to_prepare_to_store ();
}
char *myaddr;
int len;
int dowrite;
- struct target_ops *target; /* ignored */
+ struct target_ops *target; /* ignored */
{
int retval;
struct cleanup *old_chain;
old_chain = save_inferior_pid ();
- if (is_thread (inferior_pid))
- inferior_pid = main_ph.pid; /* It's a thread. Convert to lwp */
+ if (is_thread (inferior_pid) || /* A thread */
+ !target_thread_alive (inferior_pid)) /* An lwp, but not alive */
+ inferior_pid = procfs_first_available (); /* Find any live lwp. */
+ /* Note: don't need to call switch_to_thread; we're just reading memory. */
- retval = procfs_ops.to_xfer_memory (memaddr, myaddr, len, dowrite, target);
+ if (target_has_execution)
+ retval = procfs_ops.to_xfer_memory (memaddr, myaddr, len, dowrite, target);
+ else
+ retval = orig_core_ops.to_xfer_memory (memaddr, myaddr, len,
+ dowrite, target);
do_cleanups (old_chain);
/* Print status information about what we're accessing. */
static void
-sol_thread_files_info (ignore)
- struct target_ops *ignore;
+sol_thread_files_info (struct target_ops *ignore)
{
procfs_ops.to_files_info (ignore);
}
static void
-sol_thread_kill_inferior ()
+sol_thread_kill_inferior (void)
{
procfs_ops.to_kill ();
}
static void
-sol_thread_notice_signals (pid)
- int pid;
+sol_thread_notice_signals (int pid)
{
- procfs_ops.to_notice_signals (pid);
+ procfs_ops.to_notice_signals (PIDGET (pid));
}
-void target_new_objfile PARAMS ((struct objfile *objfile));
-
/* Fork an inferior process, and start debugging it with /proc. */
static void
-sol_thread_create_inferior (exec_file, allargs, env)
- char *exec_file;
- char *allargs;
- char **env;
+sol_thread_create_inferior (char *exec_file, char *allargs, char **env)
{
procfs_ops.to_create_inferior (exec_file, allargs, env);
- if (sol_thread_active)
+ if (sol_thread_active && inferior_pid != 0)
{
- main_ph.pid = inferior_pid; /* Save for xfer_memory */
+ main_ph.pid = inferior_pid; /* Save for xfer_memory */
push_target (&sol_thread_ops);
inferior_pid = lwp_to_thread (inferior_pid);
+ if (inferior_pid == -1)
+ inferior_pid = main_ph.pid;
- add_thread (inferior_pid);
+ if (!in_thread_list (inferior_pid))
+ add_thread (inferior_pid);
}
}
those variables don't show up until the library gets mapped and the symbol
table is read in. */
+/* This new_objfile event is now managed by a chained function pointer.
+ * It is the callee's responsability to call the next client on the chain.
+ */
+
+/* Saved pointer to previous owner of the new_objfile event. */
+static void (*target_new_objfile_chain) (struct objfile *);
+
void
-sol_thread_new_objfile (objfile)
- struct objfile *objfile;
+sol_thread_new_objfile (struct objfile *objfile)
{
td_err_e val;
if (!objfile)
{
sol_thread_active = 0;
-
- return;
+ goto quit;
}
+ /* don't do anything if init failed to resolve the libthread_db library */
+ if (!procfs_suppress_run)
+ goto quit;
+
/* Now, initialize the thread debugging library. This needs to be done after
the shared libraries are located because it needs information from the
user's thread library. */
val = p_td_init ();
if (val != TD_OK)
- error ("target_new_objfile: td_init: %s", td_err_string (val));
+ {
+ warning ("sol_thread_new_objfile: td_init: %s", td_err_string (val));
+ goto quit;
+ }
val = p_td_ta_new (&main_ph, &main_ta);
if (val == TD_NOLIBTHREAD)
- return;
+ goto quit;
else if (val != TD_OK)
- error ("target_new_objfile: td_ta_new: %s", td_err_string (val));
+ {
+ warning ("sol_thread_new_objfile: td_ta_new: %s", td_err_string (val));
+ goto quit;
+ }
sol_thread_active = 1;
+quit:
+ /* Call predecessor on chain, if any. */
+ if (target_new_objfile_chain)
+ target_new_objfile_chain (objfile);
}
/* Clean up after the inferior dies. */
static void
-sol_thread_mourn_inferior ()
+sol_thread_mourn_inferior (void)
{
+ unpush_target (&sol_thread_ops);
procfs_ops.to_mourn_inferior ();
}
/* Mark our target-struct as eligible for stray "run" and "attach" commands. */
static int
-sol_thread_can_run ()
+sol_thread_can_run (void)
{
return procfs_suppress_run;
}
+/*
+
+ LOCAL FUNCTION
+
+ sol_thread_alive - test thread for "aliveness"
+
+ SYNOPSIS
+
+ static bool sol_thread_alive (int pid);
+
+ DESCRIPTION
+
+ returns true if thread still active in inferior.
+
+ */
+
static int
-sol_thread_alive (pid)
- int pid;
+sol_thread_alive (int pid)
{
- return 1;
+ if (is_thread (pid)) /* non-kernel thread */
+ {
+ td_err_e val;
+ td_thrhandle_t th;
+
+ pid = GET_THREAD (pid);
+ if ((val = p_td_ta_map_id2thr (main_ta, pid, &th)) != TD_OK)
+ return 0; /* thread not found */
+ if ((val = p_td_thr_validate (&th)) != TD_OK)
+ return 0; /* thread not valid */
+ return 1; /* known thread: return true */
+ }
+ else
+ /* kernel thread (LWP): let procfs test it */
+ {
+ if (target_has_execution)
+ return procfs_ops.to_thread_alive (pid);
+ else
+ return orig_core_ops.to_thread_alive (pid);
+ }
}
static void
-sol_thread_stop ()
+sol_thread_stop (void)
{
procfs_ops.to_stop ();
}
/* These routines implement the lower half of the thread_db interface. Ie: the
ps_* routines. */
+/* Various versions of <proc_service.h> have slightly
+ different function prototypes. In particular, we have
+
+ NEWER OLDER
+ struct ps_prochandle * const struct ps_prochandle *
+ void* char*
+ const void* char*
+ int size_t
+
+ Which one you have depends on solaris version and what
+ patches you've applied. On the theory that there are
+ only two major variants, we have configure check the
+ prototype of ps_pdwrite (), and use that info to make
+ appropriate typedefs here. */
+
+#ifdef PROC_SERVICE_IS_OLD
+typedef const struct ps_prochandle *gdb_ps_prochandle_t;
+typedef char *gdb_ps_read_buf_t;
+typedef char *gdb_ps_write_buf_t;
+typedef int gdb_ps_size_t;
+typedef paddr_t gdb_ps_addr_t;
+#else
+typedef struct ps_prochandle *gdb_ps_prochandle_t;
+typedef void *gdb_ps_read_buf_t;
+typedef const void *gdb_ps_write_buf_t;
+typedef size_t gdb_ps_size_t;
+typedef psaddr_t gdb_ps_addr_t;
+#endif
+
+
/* The next four routines are called by thread_db to tell us to stop and stop
a particular process or lwp. Since GDB ensures that these are all stopped
by the time we call anything in thread_db, these routines need to do
nothing. */
+/* Process stop */
+
ps_err_e
-ps_pstop (const struct ps_prochandle *ph)
+ps_pstop (gdb_ps_prochandle_t ph)
{
return PS_OK;
}
+/* Process continue */
+
ps_err_e
-ps_pcontinue (const struct ps_prochandle *ph)
+ps_pcontinue (gdb_ps_prochandle_t ph)
{
return PS_OK;
}
+/* LWP stop */
+
ps_err_e
-ps_lstop (const struct ps_prochandle *ph, lwpid_t lwpid)
+ps_lstop (gdb_ps_prochandle_t ph, lwpid_t lwpid)
{
return PS_OK;
}
+/* LWP continue */
+
ps_err_e
-ps_lcontinue (const struct ps_prochandle *ph, lwpid_t lwpid)
+ps_lcontinue (gdb_ps_prochandle_t ph, lwpid_t lwpid)
{
return PS_OK;
}
+/* Looks up the symbol LD_SYMBOL_NAME in the debugger's symbol table. */
+
ps_err_e
-ps_pglobal_lookup (const struct ps_prochandle *ph, const char *ld_object_name,
- const char *ld_symbol_name, paddr_t *ld_symbol_addr)
+ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *ld_object_name,
+ const char *ld_symbol_name, gdb_ps_addr_t * ld_symbol_addr)
{
struct minimal_symbol *ms;
/* Common routine for reading and writing memory. */
static ps_err_e
-rw_common (int dowrite, const struct ps_prochandle *ph, paddr_t addr,
+rw_common (int dowrite, const struct ps_prochandle *ph, gdb_ps_addr_t addr,
char *buf, int size)
{
struct cleanup *old_chain;
old_chain = save_inferior_pid ();
- if (is_thread (inferior_pid))
- inferior_pid = main_ph.pid; /* It's a thread. Convert to lwp */
+ if (is_thread (inferior_pid) || /* A thread */
+ !target_thread_alive (inferior_pid)) /* An lwp, but not alive */
+ inferior_pid = procfs_first_available (); /* Find any live lwp. */
+ /* Note: don't need to call switch_to_thread; we're just reading memory. */
+
+#if defined (__sparcv9)
+ /* For Sparc64 cross Sparc32, make sure the address has not been
+ accidentally sign-extended (or whatever) to beyond 32 bits. */
+ if (bfd_get_arch_size (exec_bfd) == 32)
+ addr &= 0xffffffff;
+#endif
while (size > 0)
{
int cc;
- cc = procfs_ops.to_xfer_memory (addr, buf, size, dowrite, &procfs_ops);
+ if (target_has_execution)
+ cc = procfs_ops.to_xfer_memory (addr, buf, size, dowrite, &procfs_ops);
+ else
+ cc = orig_core_ops.to_xfer_memory (addr, buf, size, dowrite, &core_ops);
if (cc < 0)
{
if (dowrite == 0)
- print_sys_errmsg ("ps_pdread (): read", errno);
+ print_sys_errmsg ("rw_common (): read", errno);
+ else
+ print_sys_errmsg ("rw_common (): write", errno);
+
+ do_cleanups (old_chain);
+
+ return PS_ERR;
+ }
+ else if (cc == 0)
+ {
+ if (dowrite == 0)
+ warning ("rw_common (): unable to read at addr 0x%lx",
+ (long) addr);
else
- print_sys_errmsg ("ps_pdread (): write", errno);
+ warning ("rw_common (): unable to write at addr 0x%lx",
+ (long) addr);
do_cleanups (old_chain);
return PS_ERR;
}
+
size -= cc;
buf += cc;
}
return PS_OK;
}
+/* Copies SIZE bytes from target process .data segment to debugger memory. */
+
ps_err_e
-ps_pdread (const struct ps_prochandle *ph, paddr_t addr, char *buf, int size)
+ps_pdread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
+ gdb_ps_read_buf_t buf, gdb_ps_size_t size)
{
return rw_common (0, ph, addr, buf, size);
}
+/* Copies SIZE bytes from debugger memory .data segment to target process. */
+
ps_err_e
-ps_pdwrite (const struct ps_prochandle *ph, paddr_t addr, char *buf, int size)
+ps_pdwrite (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
+ gdb_ps_write_buf_t buf, gdb_ps_size_t size)
{
- return rw_common (1, ph, addr, buf, size);
+ return rw_common (1, ph, addr, (char *) buf, size);
}
+/* Copies SIZE bytes from target process .text segment to debugger memory. */
+
ps_err_e
-ps_ptread (const struct ps_prochandle *ph, paddr_t addr, char *buf, int size)
+ps_ptread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
+ gdb_ps_read_buf_t buf, gdb_ps_size_t size)
{
return rw_common (0, ph, addr, buf, size);
}
+/* Copies SIZE bytes from debugger memory .text segment to target process. */
+
ps_err_e
-ps_ptwrite (const struct ps_prochandle *ph, paddr_t addr, char *buf, int size)
+ps_ptwrite (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
+ gdb_ps_write_buf_t buf, gdb_ps_size_t size)
{
- return rw_common (1, ph, addr, buf, size);
+ return rw_common (1, ph, addr, (char *) buf, size);
}
-/* Get integer regs */
+/* Get integer regs for LWP */
ps_err_e
-ps_lgetregs (const struct ps_prochandle *ph, lwpid_t lwpid,
+ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
prgregset_t gregset)
{
struct cleanup *old_chain;
old_chain = save_inferior_pid ();
inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid));
-
- procfs_ops.to_fetch_registers (-1);
- fill_gregset (gregset, -1);
+
+ if (target_has_execution)
+ procfs_ops.to_fetch_registers (-1);
+ else
+ orig_core_ops.to_fetch_registers (-1);
+ fill_gregset ((gdb_gregset_t *) gregset, -1);
do_cleanups (old_chain);
return PS_OK;
}
-/* Set integer regs */
+/* Set integer regs for LWP */
ps_err_e
-ps_lsetregs (const struct ps_prochandle *ph, lwpid_t lwpid,
+ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
const prgregset_t gregset)
{
struct cleanup *old_chain;
old_chain = save_inferior_pid ();
inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid));
-
- supply_gregset (gregset);
- procfs_ops.to_store_registers (-1);
+
+ supply_gregset ((gdb_gregset_t *) gregset);
+ if (target_has_execution)
+ procfs_ops.to_store_registers (-1);
+ else
+ orig_core_ops.to_store_registers (-1);
do_cleanups (old_chain);
return PS_OK;
}
+/* Log a message (sends to gdb_stderr). */
+
void
-ps_plog (const char *fmt, ...)
+ps_plog (const char *fmt,...)
{
va_list args;
/* Get size of extra register set. Currently a noop. */
ps_err_e
-ps_lgetxregsize (const struct ps_prochandle *ph, lwpid_t lwpid, int *xregsize)
+ps_lgetxregsize (gdb_ps_prochandle_t ph, lwpid_t lwpid, int *xregsize)
{
#if 0
int lwp_fd;
/* Get extra register set. Currently a noop. */
ps_err_e
-ps_lgetxregs (const struct ps_prochandle *ph, lwpid_t lwpid, caddr_t xregset)
+ps_lgetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset)
{
#if 0
int lwp_fd;
/* Set extra register set. Currently a noop. */
ps_err_e
-ps_lsetxregs (const struct ps_prochandle *ph, lwpid_t lwpid, caddr_t xregset)
+ps_lsetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset)
{
#if 0
int lwp_fd;
return PS_OK;
}
-/* Get floating-point regs. */
+/* Get floating-point regs for LWP */
ps_err_e
-ps_lgetfpregs (const struct ps_prochandle *ph, lwpid_t lwpid,
- prfpregset_t *fpregset)
+ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
+ prfpregset_t * fpregset)
{
struct cleanup *old_chain;
inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid));
- procfs_ops.to_fetch_registers (-1);
- fill_fpregset (*fpregset, -1);
+ if (target_has_execution)
+ procfs_ops.to_fetch_registers (-1);
+ else
+ orig_core_ops.to_fetch_registers (-1);
+ fill_fpregset ((gdb_fpregset_t *) fpregset, -1);
do_cleanups (old_chain);
return PS_OK;
}
-/* Set floating-point regs. */
+/* Set floating-point regs for LWP */
ps_err_e
-ps_lsetfpregs (const struct ps_prochandle *ph, lwpid_t lwpid,
- const prfpregset_t *fpregset)
+ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
+ const prfpregset_t * fpregset)
{
struct cleanup *old_chain;
old_chain = save_inferior_pid ();
inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid));
-
- supply_fpregset (*fpregset);
- procfs_ops.to_store_registers (-1);
+
+ supply_fpregset ((gdb_fpregset_t *) fpregset);
+ if (target_has_execution)
+ procfs_ops.to_store_registers (-1);
+ else
+ orig_core_ops.to_store_registers (-1);
do_cleanups (old_chain);
return PS_OK;
}
+
+#ifdef PR_MODEL_LP64
+/* Identify process as 32-bit or 64-bit.
+ At the moment I'm using bfd to do this.
+ There might be a more solaris-specific (eg. procfs) method,
+ but this ought to work. */
+
+ps_err_e
+ps_pdmodel (gdb_ps_prochandle_t ph, int *data_model)
+{
+ if (exec_bfd == 0)
+ return PS_ERR;
+
+ if (bfd_get_arch_size (exec_bfd) == 32)
+ *data_model = PR_MODEL_ILP32;
+ else
+ *data_model = PR_MODEL_LP64;
+
+ return PS_OK;
+}
+#endif /* PR_MODEL_LP64 */
+
+#ifdef TM_I386SOL2_H
+
+/* Reads the local descriptor table of a LWP. */
+
+ps_err_e
+ps_lgetLDT (gdb_ps_prochandle_t ph, lwpid_t lwpid,
+ struct ssd *pldt)
+{
+ /* NOTE: only used on Solaris, therefore OK to refer to procfs.c */
+ extern struct ssd *procfs_find_LDT_entry (int);
+ struct ssd *ret;
+
+ /* FIXME: can't I get the process ID from the prochandle or something?
+ */
+
+ if (inferior_pid <= 0 || lwpid <= 0)
+ return PS_BADLID;
+
+ ret = procfs_find_LDT_entry (BUILD_LWP (lwpid, PIDGET (inferior_pid)));
+ if (ret)
+ {
+ memcpy (pldt, ret, sizeof (struct ssd));
+ return PS_OK;
+ }
+ else /* LDT not found. */
+ return PS_ERR;
+}
+#endif /* TM_I386SOL2_H */
\f
/* Convert a pid to printable form. */
char *
-solaris_pid_to_str (pid)
- int pid;
+solaris_pid_to_str (int pid)
{
static char buf[100];
+ /* in case init failed to resolve the libthread_db library */
+ if (!procfs_suppress_run)
+ return procfs_pid_to_str (pid);
+
if (is_thread (pid))
{
int lwp;
lwp = thread_to_lwp (pid, -2);
- if (lwp != -2)
+ if (lwp == -1)
+ sprintf (buf, "Thread %d (defunct)", GET_THREAD (pid));
+ else if (lwp != -2)
sprintf (buf, "Thread %d (LWP %d)", GET_THREAD (pid), GET_LWP (lwp));
else
sprintf (buf, "Thread %d ", GET_THREAD (pid));
}
- else
+ else if (GET_LWP (pid) != 0)
sprintf (buf, "LWP %d ", GET_LWP (pid));
+ else
+ sprintf (buf, "process %d ", PIDGET (pid));
return buf;
}
\f
-struct target_ops sol_thread_ops = {
- "solaris-threads", /* to_shortname */
- "Solaris threads and pthread.", /* to_longname */
- "Solaris threads and pthread support.", /* to_doc */
- sol_thread_open, /* to_open */
- 0, /* to_close */
- sol_thread_attach, /* to_attach */
- sol_thread_detach, /* to_detach */
- sol_thread_resume, /* to_resume */
- sol_thread_wait, /* to_wait */
- sol_thread_fetch_registers, /* to_fetch_registers */
- sol_thread_store_registers, /* to_store_registers */
- sol_thread_prepare_to_store, /* to_prepare_to_store */
- sol_thread_xfer_memory, /* to_xfer_memory */
- sol_thread_files_info, /* to_files_info */
- memory_insert_breakpoint, /* to_insert_breakpoint */
- memory_remove_breakpoint, /* to_remove_breakpoint */
- terminal_init_inferior, /* to_terminal_init */
- terminal_inferior, /* to_terminal_inferior */
- terminal_ours_for_output, /* to_terminal_ours_for_output */
- terminal_ours, /* to_terminal_ours */
- child_terminal_info, /* to_terminal_info */
- sol_thread_kill_inferior, /* to_kill */
- 0, /* to_load */
- 0, /* to_lookup_symbol */
- sol_thread_create_inferior, /* to_create_inferior */
- sol_thread_mourn_inferior, /* to_mourn_inferior */
- sol_thread_can_run, /* to_can_run */
- sol_thread_notice_signals, /* to_notice_signals */
- sol_thread_alive, /* to_thread_alive */
- sol_thread_stop, /* to_stop */
- process_stratum, /* to_stratum */
- 0, /* to_next */
- 1, /* to_has_all_memory */
- 1, /* to_has_memory */
- 1, /* to_has_stack */
- 1, /* to_has_registers */
- 1, /* to_has_execution */
- 0, /* sections */
- 0, /* sections_end */
- OPS_MAGIC /* to_magic */
-};
+
+/* Worker bee for find_new_threads
+ Callback function that gets called once per USER thread (i.e., not
+ kernel) thread. */
+
+static int
+sol_find_new_threads_callback (const td_thrhandle_t *th, void *ignored)
+{
+ td_err_e retval;
+ td_thrinfo_t ti;
+ int pid;
+
+ if ((retval = p_td_thr_get_info (th, &ti)) != TD_OK)
+ {
+ return -1;
+ }
+ pid = BUILD_THREAD (ti.ti_tid, PIDGET (inferior_pid));
+ if (!in_thread_list (pid))
+ add_thread (pid);
+
+ return 0;
+}
+
+static void
+sol_find_new_threads (void)
+{
+ /* don't do anything if init failed to resolve the libthread_db library */
+ if (!procfs_suppress_run)
+ return;
+
+ if (inferior_pid == -1)
+ {
+ printf_filtered ("No process.\n");
+ return;
+ }
+ procfs_find_new_threads (); /* first find new kernel threads. */
+ p_td_ta_thr_iter (main_ta, sol_find_new_threads_callback, (void *) 0,
+ TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY,
+ TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS);
+}
+
+static void
+sol_core_open (char *filename, int from_tty)
+{
+ orig_core_ops.to_open (filename, from_tty);
+}
+
+static void
+sol_core_close (int quitting)
+{
+ orig_core_ops.to_close (quitting);
+}
+
+static void
+sol_core_detach (char *args, int from_tty)
+{
+ unpush_target (&core_ops);
+ orig_core_ops.to_detach (args, from_tty);
+}
+
+static void
+sol_core_files_info (struct target_ops *t)
+{
+ orig_core_ops.to_files_info (t);
+}
+
+/* Worker bee for info sol-thread command. This is a callback function that
+ gets called once for each Solaris thread (ie. not kernel thread) in the
+ inferior. Print anything interesting that we can think of. */
+
+static int
+info_cb (const td_thrhandle_t *th, void *s)
+{
+ td_err_e ret;
+ td_thrinfo_t ti;
+
+ if ((ret = p_td_thr_get_info (th, &ti)) == TD_OK)
+ {
+ printf_filtered ("%s thread #%d, lwp %d, ",
+ ti.ti_type == TD_THR_SYSTEM ? "system" : "user ",
+ ti.ti_tid, ti.ti_lid);
+ switch (ti.ti_state)
+ {
+ default:
+ case TD_THR_UNKNOWN:
+ printf_filtered ("<unknown state>");
+ break;
+ case TD_THR_STOPPED:
+ printf_filtered ("(stopped)");
+ break;
+ case TD_THR_RUN:
+ printf_filtered ("(run) ");
+ break;
+ case TD_THR_ACTIVE:
+ printf_filtered ("(active) ");
+ break;
+ case TD_THR_ZOMBIE:
+ printf_filtered ("(zombie) ");
+ break;
+ case TD_THR_SLEEP:
+ printf_filtered ("(asleep) ");
+ break;
+ case TD_THR_STOPPED_ASLEEP:
+ printf_filtered ("(stopped asleep)");
+ break;
+ }
+ /* Print thr_create start function: */
+ if (ti.ti_startfunc != 0)
+ {
+ struct minimal_symbol *msym;
+ msym = lookup_minimal_symbol_by_pc (ti.ti_startfunc);
+ if (msym)
+ printf_filtered (" startfunc: %s\n", SYMBOL_NAME (msym));
+ else
+ printf_filtered (" startfunc: 0x%s\n", paddr (ti.ti_startfunc));
+ }
+
+ /* If thread is asleep, print function that went to sleep: */
+ if (ti.ti_state == TD_THR_SLEEP)
+ {
+ struct minimal_symbol *msym;
+ msym = lookup_minimal_symbol_by_pc (ti.ti_pc);
+ if (msym)
+ printf_filtered (" - Sleep func: %s\n", SYMBOL_NAME (msym));
+ else
+ printf_filtered (" - Sleep func: 0x%s\n", paddr (ti.ti_startfunc));
+ }
+
+ /* Wrap up line, if necessary */
+ if (ti.ti_state != TD_THR_SLEEP && ti.ti_startfunc == 0)
+ printf_filtered ("\n"); /* don't you hate counting newlines? */
+ }
+ else
+ warning ("info sol-thread: failed to get info for thread.");
+
+ return 0;
+}
+
+/* List some state about each Solaris user thread in the inferior. */
+
+static void
+info_solthreads (char *args, int from_tty)
+{
+ p_td_ta_thr_iter (main_ta, info_cb, args,
+ TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY,
+ TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS);
+}
+
+static int
+ignore (CORE_ADDR addr, char *contents)
+{
+ return 0;
+}
+
+
+static void
+init_sol_thread_ops (void)
+{
+ sol_thread_ops.to_shortname = "solaris-threads";
+ sol_thread_ops.to_longname = "Solaris threads and pthread.";
+ sol_thread_ops.to_doc = "Solaris threads and pthread support.";
+ sol_thread_ops.to_open = sol_thread_open;
+ sol_thread_ops.to_close = 0;
+ sol_thread_ops.to_attach = sol_thread_attach;
+ sol_thread_ops.to_detach = sol_thread_detach;
+ sol_thread_ops.to_resume = sol_thread_resume;
+ sol_thread_ops.to_wait = sol_thread_wait;
+ sol_thread_ops.to_fetch_registers = sol_thread_fetch_registers;
+ sol_thread_ops.to_store_registers = sol_thread_store_registers;
+ sol_thread_ops.to_prepare_to_store = sol_thread_prepare_to_store;
+ sol_thread_ops.to_xfer_memory = sol_thread_xfer_memory;
+ sol_thread_ops.to_files_info = sol_thread_files_info;
+ sol_thread_ops.to_insert_breakpoint = memory_insert_breakpoint;
+ sol_thread_ops.to_remove_breakpoint = memory_remove_breakpoint;
+ sol_thread_ops.to_terminal_init = terminal_init_inferior;
+ sol_thread_ops.to_terminal_inferior = terminal_inferior;
+ sol_thread_ops.to_terminal_ours_for_output = terminal_ours_for_output;
+ sol_thread_ops.to_terminal_ours = terminal_ours;
+ sol_thread_ops.to_terminal_info = child_terminal_info;
+ sol_thread_ops.to_kill = sol_thread_kill_inferior;
+ sol_thread_ops.to_load = 0;
+ sol_thread_ops.to_lookup_symbol = 0;
+ sol_thread_ops.to_create_inferior = sol_thread_create_inferior;
+ sol_thread_ops.to_mourn_inferior = sol_thread_mourn_inferior;
+ sol_thread_ops.to_can_run = sol_thread_can_run;
+ sol_thread_ops.to_notice_signals = sol_thread_notice_signals;
+ sol_thread_ops.to_thread_alive = sol_thread_alive;
+ sol_thread_ops.to_pid_to_str = solaris_pid_to_str;
+ sol_thread_ops.to_find_new_threads = sol_find_new_threads;
+ sol_thread_ops.to_stop = sol_thread_stop;
+ sol_thread_ops.to_stratum = process_stratum;
+ sol_thread_ops.to_has_all_memory = 1;
+ sol_thread_ops.to_has_memory = 1;
+ sol_thread_ops.to_has_stack = 1;
+ sol_thread_ops.to_has_registers = 1;
+ sol_thread_ops.to_has_execution = 1;
+ sol_thread_ops.to_has_thread_control = tc_none;
+ sol_thread_ops.to_sections = 0;
+ sol_thread_ops.to_sections_end = 0;
+ sol_thread_ops.to_magic = OPS_MAGIC;
+}
+
+
+static void
+init_sol_core_ops (void)
+{
+ sol_core_ops.to_shortname = "solaris-core";
+ sol_core_ops.to_longname = "Solaris core threads and pthread.";
+ sol_core_ops.to_doc = "Solaris threads and pthread support for core files.";
+ sol_core_ops.to_open = sol_core_open;
+ sol_core_ops.to_close = sol_core_close;
+ sol_core_ops.to_attach = sol_thread_attach;
+ sol_core_ops.to_detach = sol_core_detach;
+ /* sol_core_ops.to_resume = 0; */
+ /* sol_core_ops.to_wait = 0; */
+ sol_core_ops.to_fetch_registers = sol_thread_fetch_registers;
+ /* sol_core_ops.to_store_registers = 0; */
+ /* sol_core_ops.to_prepare_to_store = 0; */
+ sol_core_ops.to_xfer_memory = sol_thread_xfer_memory;
+ sol_core_ops.to_files_info = sol_core_files_info;
+ sol_core_ops.to_insert_breakpoint = ignore;
+ sol_core_ops.to_remove_breakpoint = ignore;
+ /* sol_core_ops.to_terminal_init = 0; */
+ /* sol_core_ops.to_terminal_inferior = 0; */
+ /* sol_core_ops.to_terminal_ours_for_output = 0; */
+ /* sol_core_ops.to_terminal_ours = 0; */
+ /* sol_core_ops.to_terminal_info = 0; */
+ /* sol_core_ops.to_kill = 0; */
+ /* sol_core_ops.to_load = 0; */
+ /* sol_core_ops.to_lookup_symbol = 0; */
+ sol_core_ops.to_create_inferior = sol_thread_create_inferior;
+ sol_core_ops.to_stratum = core_stratum;
+ sol_core_ops.to_has_all_memory = 0;
+ sol_core_ops.to_has_memory = 1;
+ sol_core_ops.to_has_stack = 1;
+ sol_core_ops.to_has_registers = 1;
+ sol_core_ops.to_has_execution = 0;
+ sol_core_ops.to_has_thread_control = tc_none;
+ sol_core_ops.to_thread_alive = sol_thread_alive;
+ sol_core_ops.to_pid_to_str = solaris_pid_to_str;
+ /* On Solaris/x86, when debugging a threaded core file from process <n>,
+ the following causes "info threads" to produce "procfs: couldn't find pid
+ <n> in procinfo list" where <n> is the pid of the process that produced
+ the core file. Disable it for now. */
+ /* sol_core_ops.to_find_new_threads = sol_find_new_threads; */
+ sol_core_ops.to_sections = 0;
+ sol_core_ops.to_sections_end = 0;
+ sol_core_ops.to_magic = OPS_MAGIC;
+}
+
+/* we suppress the call to add_target of core_ops in corelow because
+ if there are two targets in the stratum core_stratum, find_core_target
+ won't know which one to return. see corelow.c for an additonal
+ comment on coreops_suppress_target. */
+int coreops_suppress_target = 1;
void
-_initialize_sol_thread ()
+_initialize_sol_thread (void)
{
void *dlhandle;
+ init_sol_thread_ops ();
+ init_sol_core_ops ();
+
dlhandle = dlopen ("libthread_db.so.1", RTLD_NOW);
if (!dlhandle)
goto die;
procfs_suppress_run = 1;
+ add_cmd ("sol-threads", class_maintenance, info_solthreads,
+ "Show info on Solaris user threads.\n", &maintenanceinfolist);
+
+ memcpy (&orig_core_ops, &core_ops, sizeof (struct target_ops));
+ memcpy (&core_ops, &sol_core_ops, sizeof (struct target_ops));
+ add_target (&core_ops);
+
+ /* Hook into new_objfile notification. */
+ target_new_objfile_chain = target_new_objfile_hook;
+ target_new_objfile_hook = sol_thread_new_objfile;
return;
- die:
+die:
fprintf_unfiltered (gdb_stderr, "[GDB will not be able to debug user-mode threads: %s]\n", dlerror ());
if (dlhandle)
dlclose (dlhandle);
+ /* allow the user to debug non-threaded core files */
+ add_target (&core_ops);
+
return;
}
projects / deliverable / binutils-gdb.git / blobdiff