/* Low level interface for debugging Solaris threads for GDB, the GNU debugger.
- Copyright 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
This file is part of GDB.
#include <dlfcn.h>
#include "gdbcmd.h"
#include "gdbcore.h"
+#include "regcache.h"
extern struct target_ops sol_thread_ops; /* Forward declaration */
extern struct target_ops sol_core_ops; /* Forward declaration */
extern int procfs_suppress_run;
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);
+extern char *procfs_pid_to_str (ptid_t ptid);
/* Prototypes for supply_gregset etc. */
#include "gregset.h"
struct ps_prochandle
{
- pid_t pid;
+ ptid_t ptid;
};
struct string_map
static td_thragent_t *main_ta;
static int sol_thread_active = 0;
-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 ptid_t thread_to_lwp (ptid_t thread_id, int default_lwp);
+static void sol_thread_resume (ptid_t ptid, int step, enum target_signal signo);
+static ptid_t lwp_to_thread (ptid_t lwp);
+static int sol_thread_alive (ptid_t ptid);
static void sol_core_close (int quitting);
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 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 GET_PID(ptid) ptid_get_pid (ptid)
+#define GET_LWP(ptid) ptid_get_lwp (ptid)
+#define GET_THREAD(ptid) ptid_get_tid (ptid)
-#define BUILD_THREAD(TID, PID) (MERGEPID (PID, TID) | THREAD_FLAG)
+#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)
/* Pointers to routines from lithread_db resolved by dlopen() */
{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_PARTIALREG, "Only part of register set was written/read"},
{TD_NOXREGS, "X register set not available for given thread"}
};
const int td_err_size = sizeof td_err_table / sizeof (struct string_map);
SYNOPSIS
- int thread_to_lwp (thread_id, default_lwp)
+ tpid_t thread_to_lwp (thread_id, default_lwp)
DESCRIPTION
*/
-static int
-thread_to_lwp (int thread_id, int default_lwp)
+static ptid_t
+thread_to_lwp (ptid_t thread_id, int default_lwp)
{
td_thrinfo_t ti;
td_thrhandle_t th;
val = p_td_ta_map_id2thr (main_ta, GET_THREAD (thread_id), &th);
if (val == TD_NOTHR)
- return -1; /* thread must have terminated */
+ return pid_to_ptid (-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 -1; /* thread must have terminated */
+ return pid_to_ptid (-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 default_lwp;
+ return pid_to_ptid (default_lwp);
error ("thread_to_lwp: thread state not active: %s",
td_state_string (ti.ti_state));
}
*/
-static int
-lwp_to_thread (int lwp)
+static ptid_t
+lwp_to_thread (ptid_t lwp)
{
td_thrinfo_t ti;
td_thrhandle_t th;
/* It's an lwp. Convert it to a thread id. */
if (!sol_thread_alive (lwp))
- return -1; /* defunct lwp */
+ return pid_to_ptid (-1); /* defunct lwp */
val = p_td_ta_map_lwp2thr (main_ta, GET_LWP (lwp), &th);
if (val == TD_NOTHR)
- return -1; /* thread must have terminated */
+ return pid_to_ptid (-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 -1; /* thread must have terminated */
+ return pid_to_ptid (-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));
}
\f
-/*
-
- LOCAL FUNCTION
-
- save_inferior_pid - Save inferior_pid on the cleanup list
- restore_inferior_pid - Restore inferior_pid from the cleanup list
-
- SYNOPSIS
-
- struct cleanup *save_inferior_pid ()
- void restore_inferior_pid (int pid)
-
- DESCRIPTION
-
- These two functions act in unison to restore inferior_pid in
- case of an error.
-
- 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.
-
- */
-
-
-static struct cleanup *
-save_inferior_pid (void)
-{
- return make_cleanup (restore_inferior_pid, (void *) inferior_pid);
-}
-
-static void
-restore_inferior_pid (void *pid)
-{
- inferior_pid = (int) pid;
-}
-\f
/* Most target vector functions from here on actually just pass through to
procfs.c, as they don't need to do anything specific for threads. */
if (sol_thread_active)
{
printf_filtered ("sol-thread active.\n");
- main_ph.pid = inferior_pid; /* Save for xfer_memory */
+ main_ph.ptid = inferior_ptid; /* 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;
+ inferior_ptid = lwp_to_thread (inferior_ptid);
+ if (PIDGET (inferior_ptid) == -1)
+ inferior_ptid = main_ph.ptid;
else
- add_thread (inferior_pid);
+ add_thread (inferior_ptid);
}
/* XXX - might want to iterate over all the threads and register them. */
}
static void
sol_thread_detach (char *args, int from_tty)
{
- inferior_pid = PIDGET (main_ph.pid);
+ inferior_ptid = pid_to_ptid (PIDGET (main_ph.ptid));
unpush_target (&sol_thread_ops);
procfs_ops.to_detach (args, from_tty);
}
for procfs. */
static void
-sol_thread_resume (int pid, int step, enum target_signal signo)
+sol_thread_resume (ptid_t ptid, int step, enum target_signal signo)
{
struct cleanup *old_chain;
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid);
- if (inferior_pid == -1)
- inferior_pid = procfs_first_available ();
+ inferior_ptid = thread_to_lwp (inferior_ptid, PIDGET (main_ph.ptid));
+ if (PIDGET (inferior_ptid) == -1)
+ inferior_ptid = procfs_first_available ();
- if (pid != -1)
+ if (PIDGET (ptid) != -1)
{
- int save_pid = pid;
+ ptid_t save_ptid = ptid;
- pid = thread_to_lwp (pid, -2);
- if (pid == -2) /* Inactive thread */
+ ptid = thread_to_lwp (ptid, -2);
+ if (PIDGET (ptid) == -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));
+ if (info_verbose && PIDGET (ptid) == -1)
+ warning ("Specified thread %ld seems to have terminated",
+ GET_THREAD (save_ptid));
}
- procfs_ops.to_resume (pid, step, signo);
+ procfs_ops.to_resume (ptid, step, signo);
do_cleanups (old_chain);
}
/* Wait for any threads to stop. We may have to convert PID from a thread id
to a LWP id, and vice versa on the way out. */
-static int
-sol_thread_wait (int pid, struct target_waitstatus *ourstatus)
+static ptid_t
+sol_thread_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
{
- int rtnval;
- int save_pid;
+ ptid_t rtnval;
+ ptid_t save_ptid;
struct cleanup *old_chain;
- save_pid = inferior_pid;
- old_chain = save_inferior_pid ();
+ save_ptid = inferior_ptid;
+ old_chain = save_inferior_ptid ();
- inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid);
- if (inferior_pid == -1)
- inferior_pid = procfs_first_available ();
+ inferior_ptid = thread_to_lwp (inferior_ptid, PIDGET (main_ph.ptid));
+ if (PIDGET (inferior_ptid) == -1)
+ inferior_ptid = procfs_first_available ();
- if (pid != -1)
+ if (PIDGET (ptid) != -1)
{
- int save_pid = pid;
+ ptid_t save_ptid = ptid;
- pid = thread_to_lwp (pid, -2);
- if (pid == -2) /* Inactive thread */
+ ptid = thread_to_lwp (ptid, -2);
+ if (PIDGET (ptid) == -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));
+ if (info_verbose && PIDGET (ptid) == -1)
+ warning ("Specified thread %ld seems to have terminated",
+ GET_THREAD (save_ptid));
}
- rtnval = procfs_ops.to_wait (pid, ourstatus);
+ rtnval = procfs_ops.to_wait (ptid, ourstatus);
if (ourstatus->kind != TARGET_WAITKIND_EXITED)
{
/* Map the LWP of interest back to the appropriate thread ID */
rtnval = lwp_to_thread (rtnval);
- if (rtnval == -1)
- rtnval = save_pid;
+ if (PIDGET (rtnval) == -1)
+ rtnval = save_ptid;
/* See if we have a new thread */
if (is_thread (rtnval)
- && rtnval != save_pid
+ && !ptid_equal (rtnval, save_ptid)
&& !in_thread_list (rtnval))
{
printf_filtered ("[New %s]\n", target_pid_to_str (rtnval));
caddr_t xregset;
#endif
- if (!is_thread (inferior_pid))
+ if (!is_thread (inferior_ptid))
{ /* LWP: pass the request on to procfs.c */
if (target_has_execution)
procfs_ops.to_fetch_registers (regno);
return;
}
- /* Solaris thread: convert inferior_pid into a td_thrhandle_t */
+ /* Solaris thread: convert inferior_ptid into a td_thrhandle_t */
- thread = GET_THREAD (inferior_pid);
+ thread = GET_THREAD (inferior_ptid);
if (thread == 0)
error ("sol_thread_fetch_registers: thread == 0");
caddr_t xregset;
#endif
- if (!is_thread (inferior_pid))
+ if (!is_thread (inferior_ptid))
{ /* 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 */
+ /* Solaris thread: convert inferior_ptid into a td_thrhandle_t */
- thread = GET_THREAD (inferior_pid);
+ thread = GET_THREAD (inferior_ptid);
val = p_td_ta_map_id2thr (main_ta, thread, &thandle);
if (val != TD_OK)
if (regno != -1)
{ /* Not writing all the regs */
/* save new register value */
- char old_value[REGISTER_SIZE];
+ char* old_value = (char*) alloca (REGISTER_SIZE);
memcpy (old_value, ®isters[REGISTER_BYTE (regno)], REGISTER_SIZE);
val = p_td_thr_getgregs (&thandle, gregset);
procfs_ops.to_prepare_to_store ();
}
+/* Transfer LEN bytes between GDB address MYADDR and target address
+ MEMADDR. If DOWRITE is non-zero, transfer them to the target,
+ otherwise transfer them from the target. TARGET is unused.
+
+ Returns the number of bytes transferred. */
+
static int
-sol_thread_xfer_memory (memaddr, myaddr, len, dowrite, target)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int dowrite;
- struct target_ops *target; /* ignored */
+sol_thread_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int dowrite,
+ struct mem_attrib *attrib,
+ struct target_ops *target)
{
int retval;
struct cleanup *old_chain;
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- 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. */
+ if (is_thread (inferior_ptid) || /* A thread */
+ !target_thread_alive (inferior_ptid)) /* An lwp, but not alive */
+ inferior_ptid = procfs_first_available (); /* Find any live lwp. */
/* Note: don't need to call switch_to_thread; we're just reading memory. */
if (target_has_execution)
- retval = procfs_ops.to_xfer_memory (memaddr, myaddr, len, dowrite, target);
+ retval = procfs_ops.to_xfer_memory (memaddr, myaddr, len,
+ dowrite, attrib, target);
else
retval = orig_core_ops.to_xfer_memory (memaddr, myaddr, len,
- dowrite, target);
+ dowrite, attrib, target);
do_cleanups (old_chain);
}
static void
-sol_thread_notice_signals (int pid)
+sol_thread_notice_signals (ptid_t ptid)
{
- procfs_ops.to_notice_signals (PIDGET (pid));
+ procfs_ops.to_notice_signals (pid_to_ptid (PIDGET (ptid)));
}
/* Fork an inferior process, and start debugging it with /proc. */
{
procfs_ops.to_create_inferior (exec_file, allargs, env);
- if (sol_thread_active && inferior_pid != 0)
+ if (sol_thread_active && !ptid_equal (inferior_ptid, null_ptid))
{
- main_ph.pid = inferior_pid; /* Save for xfer_memory */
+ main_ph.ptid = inferior_ptid; /* 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;
+ inferior_ptid = lwp_to_thread (inferior_ptid);
+ if (PIDGET (inferior_ptid) == -1)
+ inferior_ptid = main_ph.ptid;
- if (!in_thread_list (inferior_pid))
- add_thread (inferior_pid);
+ if (!in_thread_list (inferior_ptid))
+ add_thread (inferior_ptid);
}
}
SYNOPSIS
- static bool sol_thread_alive (int pid);
+ static bool sol_thread_alive (ptid_t ptid);
DESCRIPTION
*/
static int
-sol_thread_alive (int pid)
+sol_thread_alive (ptid_t ptid)
{
- if (is_thread (pid)) /* non-kernel thread */
+ if (is_thread (ptid)) /* non-kernel thread */
{
td_err_e val;
td_thrhandle_t th;
+ int pid;
- pid = GET_THREAD (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)
/* kernel thread (LWP): let procfs test it */
{
if (target_has_execution)
- return procfs_ops.to_thread_alive (pid);
+ return procfs_ops.to_thread_alive (ptid);
else
- return orig_core_ops.to_thread_alive (pid);
+ return orig_core_ops.to_thread_alive (ptid);
}
}
{
struct cleanup *old_chain;
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- 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. */
+ if (is_thread (inferior_ptid) || /* A thread */
+ !target_thread_alive (inferior_ptid)) /* An lwp, but not alive */
+ inferior_ptid = procfs_first_available (); /* Find any live lwp. */
/* Note: don't need to call switch_to_thread; we're just reading memory. */
#if defined (__sparcv9)
{
int cc;
+ /* FIXME: passing 0 as attrib argument. */
if (target_has_execution)
- cc = procfs_ops.to_xfer_memory (addr, buf, size, dowrite, &procfs_ops);
+ cc = procfs_ops.to_xfer_memory (addr, buf, size,
+ dowrite, 0, &procfs_ops);
else
- cc = orig_core_ops.to_xfer_memory (addr, buf, size, dowrite, &core_ops);
+ cc = orig_core_ops.to_xfer_memory (addr, buf, size,
+ dowrite, 0, &core_ops);
if (cc < 0)
{
{
struct cleanup *old_chain;
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid));
+ inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
if (target_has_execution)
procfs_ops.to_fetch_registers (-1);
{
struct cleanup *old_chain;
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid));
+ inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
supply_gregset ((gdb_gregset_t *) gregset);
if (target_has_execution)
{
struct cleanup *old_chain;
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid));
+ inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
if (target_has_execution)
procfs_ops.to_fetch_registers (-1);
{
struct cleanup *old_chain;
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid));
+ inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
supply_fpregset ((gdb_fpregset_t *) fpregset);
if (target_has_execution)
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_UNKNOWN;
+ else if (bfd_get_arch_size (exec_bfd) == 32)
*data_model = PR_MODEL_ILP32;
else
*data_model = PR_MODEL_LP64;
struct ssd *pldt)
{
/* NOTE: only used on Solaris, therefore OK to refer to procfs.c */
- extern struct ssd *procfs_find_LDT_entry (int);
+ extern struct ssd *procfs_find_LDT_entry (ptid_t);
struct ssd *ret;
/* FIXME: can't I get the process ID from the prochandle or something?
*/
- if (inferior_pid <= 0 || lwpid <= 0)
+ if (PIDGET (inferior_ptid) <= 0 || lwpid <= 0)
return PS_BADLID;
- ret = procfs_find_LDT_entry (BUILD_LWP (lwpid, PIDGET (inferior_pid)));
+ ret = procfs_find_LDT_entry (BUILD_LWP (lwpid, PIDGET (inferior_ptid)));
if (ret)
{
memcpy (pldt, ret, sizeof (struct ssd));
/* Convert a pid to printable form. */
char *
-solaris_pid_to_str (int pid)
+solaris_pid_to_str (ptid_t ptid)
{
static char buf[100];
/* in case init failed to resolve the libthread_db library */
if (!procfs_suppress_run)
- return procfs_pid_to_str (pid);
+ return procfs_pid_to_str (ptid);
- if (is_thread (pid))
+ if (is_thread (ptid))
{
- int lwp;
+ ptid_t lwp;
- lwp = thread_to_lwp (pid, -2);
+ lwp = thread_to_lwp (ptid, -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));
+ if (PIDGET (lwp) == -1)
+ sprintf (buf, "Thread %ld (defunct)", GET_THREAD (ptid));
+ else if (PIDGET (lwp) != -2)
+ sprintf (buf, "Thread %ld (LWP %ld)", GET_THREAD (ptid), GET_LWP (lwp));
else
- sprintf (buf, "Thread %d ", GET_THREAD (pid));
+ sprintf (buf, "Thread %ld ", GET_THREAD (ptid));
}
- else if (GET_LWP (pid) != 0)
- sprintf (buf, "LWP %d ", GET_LWP (pid));
+ else if (GET_LWP (ptid) != 0)
+ sprintf (buf, "LWP %ld ", GET_LWP (ptid));
else
- sprintf (buf, "process %d ", PIDGET (pid));
+ sprintf (buf, "process %d ", PIDGET (ptid));
return buf;
}
{
td_err_e retval;
td_thrinfo_t ti;
- int pid;
+ ptid_t ptid;
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);
+ ptid = BUILD_THREAD (ti.ti_tid, PIDGET (inferior_ptid));
+ if (!in_thread_list (ptid))
+ add_thread (ptid);
return 0;
}
if (!procfs_suppress_run)
return;
- if (inferior_pid == -1)
+ if (PIDGET (inferior_ptid) == -1)
{
printf_filtered ("No process.\n");
return;
}
- procfs_find_new_threads (); /* first find new kernel threads. */
+ procfs_ops.to_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);
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