/* Solaris threads debugging interface.
- Copyright (C) 1996-2018 Free Software Foundation, Inc.
+ Copyright (C) 1996-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "minsyms.h"
#include "objfiles.h"
-struct target_ops sol_thread_ops;
+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;
+ const char *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;
+};
+
+static sol_thread_target sol_thread_ops;
/* Prototypes for supply_gregset etc. */
#include "gregset.h"
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. */
td_thrhandle_t th;
td_err_e val;
- if (ptid_lwp_p (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, ptid_get_tid (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 ptid_build (ptid_get_pid (thread_id), ti.ti_lid, 0);
+ 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 (ptid_tid_p (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, ptid_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 ptid_build (ptid_get_pid (lwp), 0 , ti.ti_tid);
+ 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, inferior *inf, 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 (ptid_get_pid (main_ph.ptid));
- unpush_target (ops);
- beneath->to_detach (beneath, inf, 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 target_ops *beneath = find_target_beneath (ops);
-
scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
- inferior_ptid = thread_to_lwp (inferior_ptid, ptid_get_pid (main_ph.ptid));
- if (ptid_get_pid (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 (ptid_get_pid (ptid) != -1)
+ if (ptid.pid () != -1)
{
ptid_t save_ptid = ptid;
ptid = thread_to_lwp (ptid, -2);
- if (ptid_get_pid (ptid) == -2) /* Inactive thread. */
+ if (ptid.pid () == -2) /* Inactive thread. */
error (_("This version of Solaris can't start inactive threads."));
- if (info_verbose && ptid_get_pid (ptid) == -1)
+ if (info_verbose && ptid.pid () == -1)
warning (_("Specified thread %ld seems to have terminated"),
- ptid_get_tid (save_ptid));
+ save_ptid.tid ());
}
- beneath->to_resume (beneath, ptid, step, signo);
+ 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);
save_ptid = inferior_ptid;
scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
- inferior_ptid = thread_to_lwp (inferior_ptid, ptid_get_pid (main_ph.ptid));
- if (ptid_get_pid (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 (ptid_get_pid (ptid) != -1)
+ if (ptid.pid () != -1)
{
- ptid_t save_ptid = ptid;
+ ptid_t ptid_for_warning = ptid;
ptid = thread_to_lwp (ptid, -2);
- if (ptid_get_pid (ptid) == -2) /* Inactive thread. */
+ if (ptid.pid () == -2) /* Inactive thread. */
error (_("This version of Solaris can't start inactive threads."));
- if (info_verbose && ptid_get_pid (ptid) == -1)
+ if (info_verbose && ptid.pid () == -1)
warning (_("Specified thread %ld seems to have terminated"),
- ptid_get_tid (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 (ptid_get_pid (rtnval) == -1)
+ if (rtnval.pid () == -1)
rtnval = save_ptid;
/* See if we have a new thread. */
- if (ptid_tid_p (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
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_get_ptid (regcache);
+ ptid_t ptid = regcache->ptid ();
- if (!ptid_tid_p (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 PTID into a td_thrhandle_t. */
- thread = ptid_get_tid (ptid);
+ 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_get_ptid (regcache);
+ ptid_t ptid = regcache->ptid ();
- if (!ptid_tid_p (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 PTID into a td_thrhandle_t. */
- thread = ptid_get_tid (ptid);
+ thread = ptid.tid ();
val = p_td_ta_map_id2thr (main_ta, thread, &thandle);
if (val != TD_OK)
target_write_partial for details of each variant. One, and only
one, of readbuf or writebuf must be non-NULL. */
-static enum target_xfer_status
-sol_thread_xfer_partial (struct target_ops *ops, enum target_object object,
- const char *annex, gdb_byte *readbuf,
- const gdb_byte *writebuf,
- ULONGEST offset, ULONGEST len, ULONGEST *xfered_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)
{
- struct target_ops *beneath = find_target_beneath (ops);
-
scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
- if (ptid_tid_p (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 ();
}
- return beneath->to_xfer_partial (beneath, object, annex, readbuf,
+ return beneath ()->xfer_partial (object, annex, readbuf,
writebuf, offset, len, xfered_len);
}
ptid_t ptid;
/* Don't attempt to use thread_db for remote targets. */
- if (!(target_can_run (¤t_target) || core_bfd))
+ if (!(target_can_run () || core_bfd))
return;
/* Do nothing if we couldn't load libthread_db.so.1. */
main_ph.ptid = inferior_ptid; /* Save for xfer_memory. */
ptid = lwp_to_thread (inferior_ptid);
- if (ptid_get_pid (ptid) != -1)
+ if (ptid.pid () != -1)
inferior_ptid = ptid;
target_update_thread_list ();
/* 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 (ptid_tid_p (ptid))
+ if (ptid.tid_p ())
{
/* It's a (user-level) thread. */
td_err_e val;
td_thrhandle_t th;
int pid;
- pid = ptid_get_tid (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);
}
}
scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
- if (ptid_tid_p (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.
ps_err_e
ps_lgetregs (struct ps_prochandle *ph, lwpid_t lwpid, prgregset_t gregset)
{
- ptid_t ptid = ptid_build (ptid_get_pid (inferior_ptid), lwpid, 0);
+ ptid_t ptid = ptid_t (inferior_ptid.pid (), lwpid, 0);
struct regcache *regcache
= get_thread_arch_regcache (ptid, target_gdbarch ());
ps_lsetregs (struct ps_prochandle *ph, lwpid_t lwpid,
const prgregset_t gregset)
{
- ptid_t ptid = ptid_build (ptid_get_pid (inferior_ptid), lwpid, 0);
+ ptid_t ptid = ptid_t (inferior_ptid.pid (), lwpid, 0);
struct regcache *regcache
= get_thread_arch_regcache (ptid, target_gdbarch ());
ps_lgetfpregs (struct ps_prochandle *ph, lwpid_t lwpid,
prfpregset_t *fpregset)
{
- ptid_t ptid = ptid_build (ptid_get_pid (inferior_ptid), lwpid, 0);
+ ptid_t ptid = ptid_t (inferior_ptid.pid (), lwpid, 0);
struct regcache *regcache
= get_thread_arch_regcache (ptid, target_gdbarch ());
ps_lsetfpregs (struct ps_prochandle *ph, lwpid_t lwpid,
const prfpregset_t * fpregset)
{
- ptid_t ptid = ptid_build (ptid_get_pid (inferior_ptid), lwpid, 0);
+ ptid_t ptid = ptid_t (inferior_ptid.pid (), lwpid, 0);
struct regcache *regcache
= get_thread_arch_regcache (ptid, target_gdbarch ());
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. */
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 (struct ps_prochandle *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 (ptid_get_pid (inferior_ptid) <= 0 || lwpid <= 0)
+ if (inferior_ptid.pid () <= 0 || lwpid <= 0)
return PS_BADLID;
- ret = procfs_find_LDT_entry (ptid_build (ptid_get_pid (inferior_ptid),
+ ret = procfs_find_LDT_entry (ptid_t (inferior_ptid.pid (),
lwpid, 0));
if (ret)
{
/* Convert PTID to printable form. */
-static const char *
-solaris_pid_to_str (struct target_ops *ops, ptid_t ptid)
+const char *
+sol_thread_target::pid_to_str (ptid_t ptid)
{
static char buf[100];
- if (ptid_tid_p (ptid))
+ if (ptid.tid_p ())
{
ptid_t lwp;
lwp = thread_to_lwp (ptid, -2);
- if (ptid_get_pid (lwp) == -1)
+ if (lwp.pid () == -1)
xsnprintf (buf, sizeof (buf), "Thread %ld (defunct)",
- ptid_get_tid (ptid));
- else if (ptid_get_pid (lwp) != -2)
+ ptid.tid ());
+ else if (lwp.pid () != -2)
xsnprintf (buf, sizeof (buf), "Thread %ld (LWP %ld)",
- ptid_get_tid (ptid), ptid_get_lwp (lwp));
+ ptid.tid (), lwp.lwp ());
else
xsnprintf (buf, sizeof (buf), "Thread %ld ",
- ptid_get_tid (ptid));
+ ptid.tid ());
}
- else if (ptid_get_lwp (ptid) != 0)
- xsnprintf (buf, sizeof (buf), "LWP %ld ", ptid_get_lwp (ptid));
+ else if (ptid.lwp () != 0)
+ xsnprintf (buf, sizeof (buf), "LWP %ld ", ptid.lwp ());
else
- xsnprintf (buf, sizeof (buf), "process %d ", ptid_get_pid (ptid));
+ xsnprintf (buf, sizeof (buf), "process %d ", ptid.pid ());
return buf;
}
{
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 = ptid_build (ptid_get_pid (inferior_ptid), 0, ti.ti_tid);
- 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_update_thread_list (struct target_ops *ops)
+void
+sol_thread_target::update_thread_list ()
{
- struct target_ops *beneath = find_target_beneath (ops);
-
/* Delete dead threads. */
prune_threads ();
/* Find any new LWP's. */
- beneath->to_update_thread_list (beneath);
+ beneath ()->update_thread_list ();
/* Then find any new user-level threads. */
p_td_ta_thr_iter (main_ta, sol_update_thread_list_callback, (void *) 0,
{
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 (struct target_ops *self, 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_update_thread_list (¤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_update_thread_list = sol_update_thread_list;
- 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;
-}
-
void
_initialize_sol_thread (void)
{
void *dlhandle;
- init_sol_thread_ops ();
-
dlhandle = dlopen ("libthread_db.so.1", RTLD_NOW);
if (!dlhandle)
goto die;
resolve (td_thr_getgregs);
resolve (td_thr_setgregs);
- complete_target_initialization (&sol_thread_ops);
-
add_cmd ("sol-threads", class_maintenance, info_solthreads,
_("Show info on Solaris user threads."), &maintenanceinfolist);
projects / deliverable / binutils-gdb.git / blobdiff