/* Solaris threads debugging interface.
- Copyright (C) 1996-2013 Free Software Foundation, Inc.
+ Copyright (C) 1996-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "target.h"
#include "inferior.h"
#include <fcntl.h>
-#include "gdb_stat.h"
+#include <sys/stat.h>
#include <dlfcn.h>
#include "gdbcmd.h"
#include "gdbcore.h"
#include "regcache.h"
#include "solib.h"
#include "symfile.h"
-#include "observer.h"
-#include "gdb_string.h"
+#include "observable.h"
#include "procfs.h"
+#include "symtab.h"
+#include "minsyms.h"
+#include "objfiles.h"
+
+static const target_info thread_db_target_info = {
+ "solaris-threads",
+ N_("Solaris threads and pthread."),
+ N_("Solaris threads and pthread support.")
+};
+
+class sol_thread_target final : public target_ops
+{
+public:
+ const target_info &info () const override
+ { return thread_db_target_info; }
+
+ strata stratum () const override { return thread_stratum; }
+
+ void detach (inferior *, int) override;
+ ptid_t wait (ptid_t, struct target_waitstatus *, int) override;
+ void resume (ptid_t, int, enum gdb_signal) override;
+ void mourn_inferior () override;
+ std::string pid_to_str (ptid_t) override;
+ ptid_t get_ada_task_ptid (long lwp, long thread) override;
+
+ void fetch_registers (struct regcache *, int) override;
+ void store_registers (struct regcache *, int) override;
+
+ enum target_xfer_status xfer_partial (enum target_object object,
+ const char *annex,
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len) override;
+
+ bool thread_alive (ptid_t ptid) override;
+ void update_thread_list () override;
+};
-struct target_ops sol_thread_ops;
+static sol_thread_target sol_thread_ops;
/* Prototypes for supply_gregset etc. */
#include "gregset.h"
struct string_map
{
int num;
- char *str;
+ const char *str;
};
static struct ps_prochandle main_ph;
static td_thragent_t *main_ta;
static int sol_thread_active = 0;
-static void init_sol_thread_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 GET_PID(ptid) ptid_get_pid (ptid)
-#define GET_LWP(ptid) ptid_get_lwp (ptid)
-#define GET_THREAD(ptid) ptid_get_tid (ptid)
-
-#define is_lwp(ptid) (GET_LWP (ptid) != 0)
-#define is_thread(ptid) (GET_THREAD (ptid) != 0)
-
-#define BUILD_LWP(lwp, pid) ptid_build (pid, lwp, 0)
-#define BUILD_THREAD(tid, pid) ptid_build (pid, 0, tid)
+/* Types of the libthread_db functions. */
+
+typedef void (td_log_ftype)(const int on_off);
+typedef td_err_e (td_ta_new_ftype)(const struct ps_prochandle *ph_p,
+ td_thragent_t **ta_pp);
+typedef td_err_e (td_ta_delete_ftype)(td_thragent_t *ta_p);
+typedef td_err_e (td_init_ftype)(void);
+typedef td_err_e (td_ta_get_ph_ftype)(const td_thragent_t *ta_p,
+ struct ps_prochandle **ph_pp);
+typedef td_err_e (td_ta_get_nthreads_ftype)(const td_thragent_t *ta_p,
+ int *nthread_p);
+typedef td_err_e (td_ta_tsd_iter_ftype)(const td_thragent_t *ta_p,
+ td_key_iter_f *cb, void *cbdata_p);
+typedef td_err_e (td_ta_thr_iter_ftype)(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);
+typedef td_err_e (td_thr_validate_ftype)(const td_thrhandle_t *th_p);
+typedef td_err_e (td_thr_tsd_ftype)(const td_thrhandle_t * th_p,
+ const thread_key_t key, void **data_pp);
+typedef td_err_e (td_thr_get_info_ftype)(const td_thrhandle_t *th_p,
+ td_thrinfo_t *ti_p);
+typedef td_err_e (td_thr_getfpregs_ftype)(const td_thrhandle_t *th_p,
+ prfpregset_t *fpregset);
+typedef td_err_e (td_thr_getxregsize_ftype)(const td_thrhandle_t *th_p,
+ int *xregsize);
+typedef td_err_e (td_thr_getxregs_ftype)(const td_thrhandle_t *th_p,
+ const caddr_t xregset);
+typedef td_err_e (td_thr_sigsetmask_ftype)(const td_thrhandle_t *th_p,
+ const sigset_t ti_sigmask);
+typedef td_err_e (td_thr_setprio_ftype)(const td_thrhandle_t *th_p,
+ const int ti_pri);
+typedef td_err_e (td_thr_setsigpending_ftype)(const td_thrhandle_t *th_p,
+ const uchar_t ti_pending_flag,
+ const sigset_t ti_pending);
+typedef td_err_e (td_thr_setfpregs_ftype)(const td_thrhandle_t *th_p,
+ const prfpregset_t *fpregset);
+typedef td_err_e (td_thr_setxregs_ftype)(const td_thrhandle_t *th_p,
+ const caddr_t xregset);
+typedef td_err_e (td_ta_map_id2thr_ftype)(const td_thragent_t *ta_p,
+ thread_t tid,
+ td_thrhandle_t *th_p);
+typedef td_err_e (td_ta_map_lwp2thr_ftype)(const td_thragent_t *ta_p,
+ lwpid_t lwpid,
+ td_thrhandle_t *th_p);
+typedef td_err_e (td_thr_getgregs_ftype)(const td_thrhandle_t *th_p,
+ prgregset_t regset);
+typedef td_err_e (td_thr_setgregs_ftype)(const td_thrhandle_t *th_p,
+ const prgregset_t regset);
/* Pointers to routines from libthread_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);
+static td_log_ftype *p_td_log;
+static td_ta_new_ftype *p_td_ta_new;
+static td_ta_delete_ftype *p_td_ta_delete;
+static td_init_ftype *p_td_init;
+static td_ta_get_ph_ftype *p_td_ta_get_ph;
+static td_ta_get_nthreads_ftype *p_td_ta_get_nthreads;
+static td_ta_tsd_iter_ftype *p_td_ta_tsd_iter;
+static td_ta_thr_iter_ftype *p_td_ta_thr_iter;
+static td_thr_validate_ftype *p_td_thr_validate;
+static td_thr_tsd_ftype *p_td_thr_tsd;
+static td_thr_get_info_ftype *p_td_thr_get_info;
+static td_thr_getfpregs_ftype *p_td_thr_getfpregs;
+static td_thr_getxregsize_ftype *p_td_thr_getxregsize;
+static td_thr_getxregs_ftype *p_td_thr_getxregs;
+static td_thr_sigsetmask_ftype *p_td_thr_sigsetmask;
+static td_thr_setprio_ftype *p_td_thr_setprio;
+static td_thr_setsigpending_ftype *p_td_thr_setsigpending;
+static td_thr_setfpregs_ftype *p_td_thr_setfpregs;
+static td_thr_setxregs_ftype *p_td_thr_setxregs;
+static td_ta_map_id2thr_ftype *p_td_ta_map_id2thr;
+static td_ta_map_lwp2thr_ftype *p_td_ta_map_lwp2thr;
+static td_thr_getgregs_ftype *p_td_thr_getgregs;
+static td_thr_setgregs_ftype *p_td_thr_setgregs;
\f
/* Return the libthread_db error string associated with ERRCODE. If
ERRCODE is unknown, return an appropriate message. */
-static char *
+static const char *
td_err_string (td_err_e errcode)
{
static struct string_map td_err_table[] =
/* Return the libthread_db state string assicoated with STATECODE.
If STATECODE is unknown, return an appropriate message. */
-static char *
+static const char *
td_state_string (td_thr_state_e statecode)
{
static struct string_map td_thr_state_table[] =
td_thrhandle_t th;
td_err_e val;
- if (is_lwp (thread_id))
+ if (thread_id.lwp_p ())
return thread_id; /* It's already an LWP ID. */
/* It's a thread. Convert to LWP. */
- val = p_td_ta_map_id2thr (main_ta, GET_THREAD (thread_id), &th);
+ val = p_td_ta_map_id2thr (main_ta, thread_id.tid (), &th);
if (val == TD_NOTHR)
- return pid_to_ptid (-1); /* Thread must have terminated. */
+ return ptid_t (-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_NOTHR)
- return pid_to_ptid (-1); /* Thread must have terminated. */
+ return ptid_t (-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)
{
if (default_lwp != -1)
- return pid_to_ptid (default_lwp);
+ return ptid_t (default_lwp);
error (_("thread_to_lwp: thread state not active: %s"),
td_state_string (ti.ti_state));
}
- return BUILD_LWP (ti.ti_lid, PIDGET (thread_id));
+ return ptid_t (thread_id.pid (), ti.ti_lid, 0);
}
/* Convert an LWP ID into a POSIX or Solaris thread ID. If LWP_ID
td_thrhandle_t th;
td_err_e val;
- if (is_thread (lwp))
+ if (lwp.tid_p ())
return lwp; /* It's already a thread ID. */
/* It's an LWP. Convert it to a thread ID. */
if (!target_thread_alive (lwp))
- return pid_to_ptid (-1); /* Must be a defunct LPW. */
+ return ptid_t (-1); /* Must be a defunct LPW. */
- val = p_td_ta_map_lwp2thr (main_ta, GET_LWP (lwp), &th);
+ val = p_td_ta_map_lwp2thr (main_ta, lwp.lwp (), &th);
if (val == TD_NOTHR)
- return pid_to_ptid (-1); /* Thread must have terminated. */
+ return ptid_t (-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);
if (val == TD_NOTHR)
- return pid_to_ptid (-1); /* Thread must have terminated. */
+ return ptid_t (-1); /* Thread must have terminated. */
else if (val != TD_OK)
error (_("lwp_to_thread: td_thr_get_info: %s."), td_err_string (val));
- return BUILD_THREAD (ti.ti_tid, PIDGET (lwp));
+ return ptid_t (lwp.pid (), 0 , ti.ti_tid);
}
\f
process to have been previously attached. It *might* work if the
program was started via the normal ptrace (PTRACE_TRACEME). */
-static void
-sol_thread_detach (struct target_ops *ops, char *args, int from_tty)
+void
+sol_thread_target::detach (inferior *inf, int from_tty)
{
- struct target_ops *beneath = find_target_beneath (ops);
+ target_ops *beneath = this->beneath ();
sol_thread_active = 0;
- inferior_ptid = pid_to_ptid (PIDGET (main_ph.ptid));
- unpush_target (ops);
- beneath->to_detach (beneath, args, from_tty);
+ inferior_ptid = ptid_t (main_ph.ptid.pid ());
+ unpush_target (this);
+ beneath->detach (inf, from_tty);
}
/* Resume execution of process PTID. If STEP is nozero, then just
activated. We may have to convert PTID from a thread ID to an LWP
ID for procfs. */
-static void
-sol_thread_resume (struct target_ops *ops,
- ptid_t ptid, int step, enum gdb_signal signo)
+void
+sol_thread_target::resume (ptid_t ptid, int step, enum gdb_signal signo)
{
- struct cleanup *old_chain;
- struct target_ops *beneath = find_target_beneath (ops);
+ scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
- old_chain = save_inferior_ptid ();
-
- inferior_ptid = thread_to_lwp (inferior_ptid, PIDGET (main_ph.ptid));
- if (PIDGET (inferior_ptid) == -1)
+ inferior_ptid = thread_to_lwp (inferior_ptid, main_ph.ptid.pid ());
+ if (inferior_ptid.pid () == -1)
inferior_ptid = procfs_first_available ();
- if (PIDGET (ptid) != -1)
+ if (ptid.pid () != -1)
{
ptid_t save_ptid = ptid;
ptid = thread_to_lwp (ptid, -2);
- if (PIDGET (ptid) == -2) /* Inactive thread. */
+ if (ptid.pid () == -2) /* Inactive thread. */
error (_("This version of Solaris can't start inactive threads."));
- if (info_verbose && PIDGET (ptid) == -1)
+ if (info_verbose && ptid.pid () == -1)
warning (_("Specified thread %ld seems to have terminated"),
- GET_THREAD (save_ptid));
+ save_ptid.tid ());
}
- beneath->to_resume (beneath, ptid, step, signo);
-
- do_cleanups (old_chain);
+ beneath ()->resume (ptid, step, signo);
}
/* Wait for any threads to stop. We may have to convert PTID from a
thread ID to an LWP ID, and vice versa on the way out. */
-static ptid_t
-sol_thread_wait (struct target_ops *ops,
- ptid_t ptid, struct target_waitstatus *ourstatus, int options)
+ptid_t
+sol_thread_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus,
+ int options)
{
ptid_t rtnval;
ptid_t save_ptid;
- struct target_ops *beneath = find_target_beneath (ops);
- struct cleanup *old_chain;
save_ptid = inferior_ptid;
- old_chain = save_inferior_ptid ();
+ scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
- inferior_ptid = thread_to_lwp (inferior_ptid, PIDGET (main_ph.ptid));
- if (PIDGET (inferior_ptid) == -1)
+ inferior_ptid = thread_to_lwp (inferior_ptid, main_ph.ptid.pid ());
+ if (inferior_ptid.pid () == -1)
inferior_ptid = procfs_first_available ();
- if (PIDGET (ptid) != -1)
+ if (ptid.pid () != -1)
{
- ptid_t save_ptid = ptid;
+ ptid_t ptid_for_warning = ptid;
ptid = thread_to_lwp (ptid, -2);
- if (PIDGET (ptid) == -2) /* Inactive thread. */
+ if (ptid.pid () == -2) /* Inactive thread. */
error (_("This version of Solaris can't start inactive threads."));
- if (info_verbose && PIDGET (ptid) == -1)
+ if (info_verbose && ptid.pid () == -1)
warning (_("Specified thread %ld seems to have terminated"),
- GET_THREAD (save_ptid));
+ ptid_for_warning.tid ());
}
- rtnval = beneath->to_wait (beneath, ptid, ourstatus, options);
+ rtnval = beneath ()->wait (ptid, ourstatus, options);
if (ourstatus->kind != TARGET_WAITKIND_EXITED)
{
/* Map the LWP of interest back to the appropriate thread ID. */
rtnval = lwp_to_thread (rtnval);
- if (PIDGET (rtnval) == -1)
+ if (rtnval.pid () == -1)
rtnval = save_ptid;
/* See if we have a new thread. */
- if (is_thread (rtnval)
- && !ptid_equal (rtnval, save_ptid)
- && (!in_thread_list (rtnval)
- || is_exited (rtnval)))
- add_thread (rtnval);
+ if (rtnval.tid_p () && rtnval != save_ptid)
+ {
+ thread_info *thr = find_thread_ptid (rtnval);
+ if (thr == NULL || thr->state == THREAD_EXITED)
+ 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. */
- do_cleanups (old_chain);
-
return rtnval;
}
-static void
-sol_thread_fetch_registers (struct target_ops *ops,
- struct regcache *regcache, int regnum)
+void
+sol_thread_target::fetch_registers (struct regcache *regcache, int regnum)
{
thread_t thread;
td_thrhandle_t thandle;
prfpregset_t fpregset;
gdb_gregset_t *gregset_p = &gregset;
gdb_fpregset_t *fpregset_p = &fpregset;
- struct target_ops *beneath = find_target_beneath (ops);
+ ptid_t ptid = regcache->ptid ();
- if (!is_thread (inferior_ptid))
+ if (!ptid.tid_p ())
{
/* It's an LWP; pass the request on to the layer beneath. */
- beneath->to_fetch_registers (beneath, regcache, regnum);
+ beneath ()->fetch_registers (regcache, regnum);
return;
}
- /* Solaris thread: convert INFERIOR_PTID into a td_thrhandle_t. */
- thread = GET_THREAD (inferior_ptid);
+ /* Solaris thread: convert PTID into a td_thrhandle_t. */
+ thread = ptid.tid ();
if (thread == 0)
error (_("sol_thread_fetch_registers: thread == 0"));
supply_fpregset (regcache, (const gdb_fpregset_t *) fpregset_p);
}
-static void
-sol_thread_store_registers (struct target_ops *ops,
- struct regcache *regcache, int regnum)
+void
+sol_thread_target::store_registers (struct regcache *regcache, int regnum)
{
thread_t thread;
td_thrhandle_t thandle;
td_err_e val;
prgregset_t gregset;
prfpregset_t fpregset;
+ ptid_t ptid = regcache->ptid ();
- if (!is_thread (inferior_ptid))
+ if (!ptid.tid_p ())
{
- struct target_ops *beneath = find_target_beneath (ops);
-
/* It's an LWP; pass the request on to the layer beneath. */
- beneath->to_store_registers (beneath, regcache, regnum);
+ beneath ()->store_registers (regcache, regnum);
return;
}
- /* Solaris thread: convert INFERIOR_PTID into a td_thrhandle_t. */
- thread = GET_THREAD (inferior_ptid);
+ /* Solaris thread: convert PTID into a td_thrhandle_t. */
+ thread = ptid.tid ();
val = p_td_ta_map_id2thr (main_ta, thread, &thandle);
if (val != TD_OK)
if (regnum != -1)
{
- /* Not writing all the registers. */
- char old_value[MAX_REGISTER_SIZE];
-
- /* Save new register value. */
- regcache_raw_collect (regcache, regnum, old_value);
-
val = p_td_thr_getgregs (&thandle, gregset);
if (val != TD_OK)
error (_("sol_thread_store_registers: td_thr_getgregs %s"),
if (val != TD_OK)
error (_("sol_thread_store_registers: td_thr_getfpregs %s"),
td_err_string (val));
-
- /* Restore new register value. */
- regcache_raw_supply (regcache, regnum, old_value);
}
fill_gregset (regcache, (gdb_gregset_t *) &gregset, regnum);
target_write_partial for details of each variant. One, and only
one, of readbuf or writebuf must be non-NULL. */
-static LONGEST
-sol_thread_xfer_partial (struct target_ops *ops, enum target_object object,
- const char *annex, gdb_byte *readbuf,
- const gdb_byte *writebuf,
- ULONGEST offset, LONGEST len)
+enum target_xfer_status
+sol_thread_target::xfer_partial (enum target_object object,
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len)
{
- int retval;
- struct cleanup *old_chain;
- struct target_ops *beneath = find_target_beneath (ops);
-
- old_chain = save_inferior_ptid ();
+ scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
- if (is_thread (inferior_ptid) || !target_thread_alive (inferior_ptid))
+ if (inferior_ptid.tid_p () || !target_thread_alive (inferior_ptid))
{
/* It's either a thread or an LWP that isn't alive. Any live
LWP will do so use the first available.
inferior_ptid = procfs_first_available ();
}
- retval = beneath->to_xfer_partial (beneath, object, annex,
- readbuf, writebuf, offset, len);
-
- do_cleanups (old_chain);
-
- return retval;
+ return beneath ()->xfer_partial (object, annex, readbuf,
+ writebuf, offset, len, xfered_len);
}
static void
td_err_e err;
ptid_t ptid;
+ /* Don't attempt to use thread_db for remote targets. */
+ if (!(target_can_run () || core_bfd))
+ return;
+
/* Do nothing if we couldn't load libthread_db.so.1. */
if (p_td_ta_new == NULL)
return;
main_ph.ptid = inferior_ptid; /* Save for xfer_memory. */
ptid = lwp_to_thread (inferior_ptid);
- if (PIDGET (ptid) != -1)
+ if (ptid.pid () != -1)
inferior_ptid = ptid;
- target_find_new_threads ();
+ target_update_thread_list ();
break;
default:
/* Clean up after the inferior dies. */
-static void
-sol_thread_mourn_inferior (struct target_ops *ops)
+void
+sol_thread_target::mourn_inferior ()
{
- struct target_ops *beneath = find_target_beneath (ops);
+ target_ops *beneath = this->beneath ();
sol_thread_active = 0;
- unpush_target (ops);
+ unpush_target (this);
- beneath->to_mourn_inferior (beneath);
+ beneath->mourn_inferior ();
}
/* Return true if PTID is still active in the inferior. */
-static int
-sol_thread_alive (struct target_ops *ops, ptid_t ptid)
+bool
+sol_thread_target::thread_alive (ptid_t ptid)
{
- if (is_thread (ptid))
+ if (ptid.tid_p ())
{
/* It's a (user-level) thread. */
td_err_e val;
td_thrhandle_t th;
int pid;
- pid = GET_THREAD (ptid);
- 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. */
+ pid = ptid.tid ();
+ val = p_td_ta_map_id2thr (main_ta, pid, &th);
+ if (val != TD_OK)
+ return false; /* Thread not found. */
+ val = p_td_thr_validate (&th);
+ if (val != TD_OK)
+ return false; /* Thread not valid. */
+ return true; /* Known thread. */
}
else
{
- struct target_ops *beneath = find_target_beneath (ops);
-
/* It's an LPW; pass the request on to the layer below. */
- return beneath->to_thread_alive (beneath, ptid);
+ return beneath ()->thread_alive (ptid);
}
}
/* These routines implement the lower half of the thread_db interface,
i.e. 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 the 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 psaddr_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 libthread_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,
/* Process stop. */
ps_err_e
-ps_pstop (gdb_ps_prochandle_t ph)
+ps_pstop (struct ps_prochandle *ph)
{
return PS_OK;
}
/* Process continue. */
ps_err_e
-ps_pcontinue (gdb_ps_prochandle_t ph)
+ps_pcontinue (struct ps_prochandle *ph)
{
return PS_OK;
}
/* LWP stop. */
ps_err_e
-ps_lstop (gdb_ps_prochandle_t ph, lwpid_t lwpid)
+ps_lstop (struct ps_prochandle *ph, lwpid_t lwpid)
{
return PS_OK;
}
/* LWP continue. */
ps_err_e
-ps_lcontinue (gdb_ps_prochandle_t ph, lwpid_t lwpid)
+ps_lcontinue (struct ps_prochandle *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 (gdb_ps_prochandle_t ph, const char *ld_object_name,
- const char *ld_symbol_name, gdb_ps_addr_t *ld_symbol_addr)
+ps_pglobal_lookup (struct ps_prochandle *ph, const char *ld_object_name,
+ const char *ld_symbol_name, psaddr_t *ld_symbol_addr)
{
- struct minimal_symbol *ms;
+ struct bound_minimal_symbol ms;
ms = lookup_minimal_symbol (ld_symbol_name, NULL, NULL);
- if (!ms)
+ if (!ms.minsym)
return PS_NOSYM;
- *ld_symbol_addr = SYMBOL_VALUE_ADDRESS (ms);
+ *ld_symbol_addr = BMSYMBOL_VALUE_ADDRESS (ms);
return PS_OK;
}
/* Common routine for reading and writing memory. */
static ps_err_e
-rw_common (int dowrite, const struct ps_prochandle *ph, gdb_ps_addr_t addr,
- char *buf, int size)
+rw_common (int dowrite, const struct ps_prochandle *ph, psaddr_t addr,
+ gdb_byte *buf, int size)
{
int ret;
- struct cleanup *old_chain;
- old_chain = save_inferior_ptid ();
+ scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
- if (is_thread (inferior_ptid) || !target_thread_alive (inferior_ptid))
+ if (inferior_ptid.tid_p () || !target_thread_alive (inferior_ptid))
{
/* It's either a thread or an LWP that isn't alive. Any live
LWP will do so use the first available.
#endif
if (dowrite)
- ret = target_write_memory (addr, buf, size);
+ ret = target_write_memory (addr, (gdb_byte *) buf, size);
else
- ret = target_read_memory (addr, buf, size);
-
- do_cleanups (old_chain);
+ ret = target_read_memory (addr, (gdb_byte *) buf, size);
return (ret == 0 ? PS_OK : PS_ERR);
}
/* Copies SIZE bytes from target process .data segment to debugger memory. */
ps_err_e
-ps_pdread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
- gdb_ps_read_buf_t buf, gdb_ps_size_t size)
+ps_pdread (struct ps_prochandle *ph, psaddr_t addr, void *buf, size_t size)
{
- return rw_common (0, ph, addr, buf, size);
+ return rw_common (0, ph, addr, (gdb_byte *) buf, size);
}
/* Copies SIZE bytes from debugger memory .data segment to target process. */
ps_err_e
-ps_pdwrite (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
- gdb_ps_write_buf_t buf, gdb_ps_size_t size)
+ps_pdwrite (struct ps_prochandle *ph, psaddr_t addr,
+ const void *buf, size_t size)
{
- return rw_common (1, ph, addr, (char *) buf, size);
+ return rw_common (1, ph, addr, (gdb_byte *) buf, size);
}
/* Copies SIZE bytes from target process .text segment to debugger memory. */
ps_err_e
-ps_ptread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
- gdb_ps_read_buf_t buf, gdb_ps_size_t size)
+ps_ptread (struct ps_prochandle *ph, psaddr_t addr, void *buf, size_t size)
{
- return rw_common (0, ph, addr, buf, size);
+ return rw_common (0, ph, addr, (gdb_byte *) buf, size);
}
/* Copies SIZE bytes from debugger memory .text segment to target process. */
ps_err_e
-ps_ptwrite (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
- gdb_ps_write_buf_t buf, gdb_ps_size_t size)
+ps_ptwrite (struct ps_prochandle *ph, psaddr_t addr,
+ const void *buf, size_t size)
{
- return rw_common (1, ph, addr, (char *) buf, size);
+ return rw_common (1, ph, addr, (gdb_byte *) buf, size);
}
/* Get general-purpose registers for LWP. */
ps_err_e
-ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prgregset_t gregset)
+ps_lgetregs (struct ps_prochandle *ph, lwpid_t lwpid, prgregset_t gregset)
{
- struct cleanup *old_chain;
- struct regcache *regcache;
-
- old_chain = save_inferior_ptid ();
-
- inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
- regcache = get_thread_arch_regcache (inferior_ptid, target_gdbarch ());
+ ptid_t ptid = ptid_t (inferior_ptid.pid (), lwpid, 0);
+ struct regcache *regcache
+ = get_thread_arch_regcache (ptid, target_gdbarch ());
target_fetch_registers (regcache, -1);
fill_gregset (regcache, (gdb_gregset_t *) gregset, -1);
- do_cleanups (old_chain);
-
return PS_OK;
}
/* Set general-purpose registers for LWP. */
ps_err_e
-ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
+ps_lsetregs (struct ps_prochandle *ph, lwpid_t lwpid,
const prgregset_t gregset)
{
- struct cleanup *old_chain;
- struct regcache *regcache;
-
- old_chain = save_inferior_ptid ();
-
- inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
- regcache = get_thread_arch_regcache (inferior_ptid, target_gdbarch ());
+ ptid_t ptid = ptid_t (inferior_ptid.pid (), lwpid, 0);
+ struct regcache *regcache
+ = get_thread_arch_regcache (ptid, target_gdbarch ());
supply_gregset (regcache, (const gdb_gregset_t *) gregset);
target_store_registers (regcache, -1);
- do_cleanups (old_chain);
-
return PS_OK;
}
vfprintf_filtered (gdb_stderr, fmt, args);
}
-/* Get floating-point registers for LWP. */
+/* Get size of extra register set. Currently a noop. */
ps_err_e
-ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
- prfpregset_t *fpregset)
+ps_lgetxregsize (struct ps_prochandle *ph, lwpid_t lwpid, int *xregsize)
{
- struct cleanup *old_chain;
- struct regcache *regcache;
+ return PS_OK;
+}
+
+/* Get extra register set. Currently a noop. */
- old_chain = save_inferior_ptid ();
+ps_err_e
+ps_lgetxregs (struct ps_prochandle *ph, lwpid_t lwpid, caddr_t xregset)
+{
+ return PS_OK;
+}
+
+/* Set extra register set. Currently a noop. */
+
+ps_err_e
+ps_lsetxregs (struct ps_prochandle *ph, lwpid_t lwpid, caddr_t xregset)
+{
+ return PS_OK;
+}
+
+/* Get floating-point registers for LWP. */
- inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
- regcache = get_thread_arch_regcache (inferior_ptid, target_gdbarch ());
+ps_err_e
+ps_lgetfpregs (struct ps_prochandle *ph, lwpid_t lwpid,
+ prfpregset_t *fpregset)
+{
+ ptid_t ptid = ptid_t (inferior_ptid.pid (), lwpid, 0);
+ struct regcache *regcache
+ = get_thread_arch_regcache (ptid, target_gdbarch ());
target_fetch_registers (regcache, -1);
fill_fpregset (regcache, (gdb_fpregset_t *) fpregset, -1);
- do_cleanups (old_chain);
-
return PS_OK;
}
/* Set floating-point regs for LWP. */
ps_err_e
-ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
+ps_lsetfpregs (struct ps_prochandle *ph, lwpid_t lwpid,
const prfpregset_t * fpregset)
{
- struct cleanup *old_chain;
- struct regcache *regcache;
-
- old_chain = save_inferior_ptid ();
-
- inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
- regcache = get_thread_arch_regcache (inferior_ptid, target_gdbarch ());
+ ptid_t ptid = ptid_t (inferior_ptid.pid (), lwpid, 0);
+ struct regcache *regcache
+ = get_thread_arch_regcache (ptid, target_gdbarch ());
supply_fpregset (regcache, (const gdb_fpregset_t *) fpregset);
target_store_registers (regcache, -1);
- do_cleanups (old_chain);
-
return PS_OK;
}
-#ifdef PR_MODEL_LP64
/* Identify process as 32-bit or 64-bit. At the moment we're using
BFD to do this. There might be a more Solaris-specific
(e.g. procfs) method, but this ought to work. */
ps_err_e
-ps_pdmodel (gdb_ps_prochandle_t ph, int *data_model)
+ps_pdmodel (struct ps_prochandle *ph, int *data_model)
{
if (exec_bfd == 0)
*data_model = PR_MODEL_UNKNOWN;
return PS_OK;
}
-#endif /* PR_MODEL_LP64 */
#if (defined(__i386__) || defined(__x86_64__)) && defined (sun)
of libthread_db would fail because of ps_lgetLDT being undefined. */
ps_err_e
-ps_lgetLDT (gdb_ps_prochandle_t ph, lwpid_t lwpid,
- struct ssd *pldt)
+ps_lgetLDT (struct ps_prochandle *ph, lwpid_t lwpid, struct ssd *pldt) /* ARI: editCase function */
{
/* NOTE: only used on Solaris, therefore OK to refer to procfs.c. */
struct ssd *ret;
/* FIXME: can't I get the process ID from the prochandle or
something? */
- if (PIDGET (inferior_ptid) <= 0 || lwpid <= 0)
+ if (inferior_ptid.pid () <= 0 || lwpid <= 0)
return PS_BADLID;
- ret = procfs_find_LDT_entry (BUILD_LWP (lwpid, PIDGET (inferior_ptid)));
+ ret = procfs_find_LDT_entry (ptid_t (inferior_ptid.pid (),
+ lwpid, 0));
if (ret)
{
memcpy (pldt, ret, sizeof (struct ssd));
/* Convert PTID to printable form. */
-static char *
-solaris_pid_to_str (struct target_ops *ops, ptid_t ptid)
+std::string
+sol_thread_target::pid_to_str (ptid_t ptid)
{
- static char buf[100];
-
- if (is_thread (ptid))
+ if (ptid.tid_p ())
{
ptid_t lwp;
lwp = thread_to_lwp (ptid, -2);
- if (PIDGET (lwp) == -1)
- xsnprintf (buf, sizeof (buf), "Thread %ld (defunct)",
- GET_THREAD (ptid));
- else if (PIDGET (lwp) != -2)
- xsnprintf (buf, sizeof (buf), "Thread %ld (LWP %ld)",
- GET_THREAD (ptid), GET_LWP (lwp));
+ if (lwp.pid () == -1)
+ return string_printf ("Thread %ld (defunct)",
+ ptid.tid ());
+ else if (lwp.pid () != -2)
+ return string_printf ("Thread %ld (LWP %ld)",
+ ptid.tid (), lwp.lwp ());
else
- xsnprintf (buf, sizeof (buf), "Thread %ld ", GET_THREAD (ptid));
+ return string_printf ("Thread %ld ",
+ ptid.tid ());
}
- else if (GET_LWP (ptid) != 0)
- xsnprintf (buf, sizeof (buf), "LWP %ld ", GET_LWP (ptid));
+ else if (ptid.lwp () != 0)
+ return string_printf ("LWP %ld ", ptid.lwp ());
else
- xsnprintf (buf, sizeof (buf), "process %d ", PIDGET (ptid));
-
- return buf;
+ return string_printf ("process %d ", ptid.pid ());
}
\f
-/* Worker bee for find_new_threads. Callback function that gets
+/* Worker bee for update_thread_list. Callback function that gets
called once per user-level thread (i.e. not for LWP's). */
static int
-sol_find_new_threads_callback (const td_thrhandle_t *th, void *ignored)
+sol_update_thread_list_callback (const td_thrhandle_t *th, void *ignored)
{
td_err_e retval;
td_thrinfo_t ti;
- ptid_t ptid;
retval = p_td_thr_get_info (th, &ti);
if (retval != TD_OK)
return -1;
- ptid = BUILD_THREAD (ti.ti_tid, PIDGET (inferior_ptid));
- if (!in_thread_list (ptid) || is_exited (ptid))
+ ptid_t ptid = ptid_t (inferior_ptid.pid (), 0, ti.ti_tid);
+ thread_info *thr = find_thread_ptid (ptid);
+ if (thr == NULL || thr->state == THREAD_EXITED)
add_thread (ptid);
return 0;
}
-static void
-sol_find_new_threads (struct target_ops *ops)
+void
+sol_thread_target::update_thread_list ()
{
- struct target_ops *beneath = find_target_beneath (ops);
+ /* Delete dead threads. */
+ prune_threads ();
- /* First Find any new LWP's. */
- if (beneath->to_find_new_threads != NULL)
- beneath->to_find_new_threads (beneath);
+ /* Find any new LWP's. */
+ beneath ()->update_thread_list ();
/* Then find any new user-level threads. */
- p_td_ta_thr_iter (main_ta, sol_find_new_threads_callback, (void *) 0,
+ p_td_ta_thr_iter (main_ta, sol_update_thread_list_callback, (void *) 0,
TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY,
TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS);
}
const struct bound_minimal_symbol msym
= lookup_minimal_symbol_by_pc (ti.ti_startfunc);
- if (msym.minsym)
- printf_filtered (" startfunc: %s\n",
- SYMBOL_PRINT_NAME (msym.minsym));
- else
- printf_filtered (" startfunc: %s\n",
- paddress (target_gdbarch (), ti.ti_startfunc));
+ printf_filtered (" startfunc=%s",
+ msym.minsym
+ ? MSYMBOL_PRINT_NAME (msym.minsym)
+ : paddress (target_gdbarch (), ti.ti_startfunc));
}
/* If thread is asleep, print function that went to sleep. */
const struct bound_minimal_symbol msym
= lookup_minimal_symbol_by_pc (ti.ti_pc);
- if (msym.minsym)
- printf_filtered (" - Sleep func: %s\n",
- SYMBOL_PRINT_NAME (msym.minsym));
- else
- printf_filtered (" - Sleep func: %s\n",
- paddress (target_gdbarch (), ti.ti_startfunc));
+ printf_filtered (" sleepfunc=%s",
+ msym.minsym
+ ? MSYMBOL_PRINT_NAME (msym.minsym)
+ : paddress (target_gdbarch (), ti.ti_pc));
}
- /* 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? */
+ printf_filtered ("\n");
}
else
warning (_("info sol-thread: failed to get info for thread."));
inferior. */
static void
-info_solthreads (char *args, int from_tty)
+info_solthreads (const char *args, int from_tty)
{
- p_td_ta_thr_iter (main_ta, info_cb, args,
+ p_td_ta_thr_iter (main_ta, info_cb, (void *) args,
TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY,
TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS);
}
{
long *tid = (long *) data;
- if (ptid_get_tid (thread->ptid) == *tid)
+ if (thread->ptid.tid () == *tid)
return 1;
return 0;
}
-static ptid_t
-sol_get_ada_task_ptid (long lwp, long thread)
+ptid_t
+sol_thread_target::get_ada_task_ptid (long lwp, long thread)
{
struct thread_info *thread_info =
iterate_over_threads (thread_db_find_thread_from_tid, &thread);
{
/* The list of threads is probably not up to date. Find any
thread that is missing from the list, and try again. */
- sol_find_new_threads (¤t_target);
+ update_thread_list ();
thread_info = iterate_over_threads (thread_db_find_thread_from_tid,
&thread);
}
return (thread_info->ptid);
}
-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_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_xfer_partial = sol_thread_xfer_partial;
- sol_thread_ops.to_mourn_inferior = sol_thread_mourn_inferior;
- 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_stratum = thread_stratum;
- sol_thread_ops.to_get_ada_task_ptid = sol_get_ada_task_ptid;
- sol_thread_ops.to_magic = OPS_MAGIC;
-}
-
-/* Silence -Wmissing-prototypes. */
-extern void _initialize_sol_thread (void);
-
void
_initialize_sol_thread (void)
{
void *dlhandle;
- init_sol_thread_ops ();
-
dlhandle = dlopen ("libthread_db.so.1", RTLD_NOW);
if (!dlhandle)
goto die;
#define resolve(X) \
- if (!(p_##X = dlsym (dlhandle, #X))) \
+ if (!(p_##X = (X ## _ftype *) dlsym (dlhandle, #X))) \
goto die;
resolve (td_log);
resolve (td_thr_getgregs);
resolve (td_thr_setgregs);
- add_target (&sol_thread_ops);
-
add_cmd ("sol-threads", class_maintenance, info_solthreads,
_("Show info on Solaris user threads."), &maintenanceinfolist);
/* Hook into new_objfile notification. */
- observer_attach_new_objfile (sol_thread_new_objfile);
+ gdb::observers::new_objfile.attach (sol_thread_new_objfile);
return;
die:
projects / deliverable / binutils-gdb.git / blobdiff