/* Interface GDB to the GNU Hurd.
- Copyright (C) 1992, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2006, 2007
- Free Software Foundation, Inc.
+ Copyright (C) 1992, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2006, 2007,
+ 2008, 2009 Free Software Foundation, Inc.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <ctype.h>
else
/* THREADS[I] is a thread we don't know about yet! */
{
+ ptid_t ptid;
+
thread = make_proc (inf, threads[i], next_thread_id++);
if (last)
last->next = thread;
inf->threads = thread;
last = thread;
proc_debug (thread, "new thread: %d", threads[i]);
- add_thread (pid_to_ptid (thread->tid)); /* Tell GDB's generic thread code. */
+
+ ptid = ptid_build (inf->pid, 0, thread->tid);
+
+ /* Tell GDB's generic thread code. */
+
+ if (ptid_equal (inferior_ptid, pid_to_ptid (inf->pid)))
+ /* This is the first time we're hearing about thread
+ ids, after a fork-child. */
+ thread_change_ptid (inferior_ptid, ptid);
+ else if (inf->pending_execs != 0)
+ /* This is a shell thread. */
+ add_thread_silent (ptid);
+ else
+ add_thread (ptid);
}
}
\f
/* The inferior used for all gdb target ops. */
-struct inf *current_inferior = 0;
+struct inf *gnu_current_inf = 0;
/* The inferior being waited for by gnu_wait. Since GDB is decidely not
multi-threaded, we don't bother to lock this. */
/* Wait for something to happen in the inferior, returning what in STATUS. */
static ptid_t
-gnu_wait (ptid_t tid, struct target_waitstatus *status)
+gnu_wait (struct target_ops *ops,
+ ptid_t ptid, struct target_waitstatus *status)
{
struct msg
{
} msg;
error_t err;
struct proc *thread;
- struct inf *inf = current_inferior;
+ struct inf *inf = gnu_current_inf;
extern int exc_server (mach_msg_header_t *, mach_msg_header_t *);
extern int msg_reply_server (mach_msg_header_t *, mach_msg_header_t *);
waiting_inf = inf;
- inf_debug (inf, "waiting for: %d", PIDGET (tid));
+ inf_debug (inf, "waiting for: %s", target_pid_to_str (ptid));
rewait:
if (proc_wait_pid != inf->pid && !inf->no_wait)
thread = inf->wait.thread;
if (thread)
- tid = pid_to_ptid (thread->tid);
+ ptid = ptid_build (inf->pid, 0, thread->tid);
+ else if (ptid_equal (ptid, minus_one_ptid))
+ thread = inf_tid_to_thread (inf, -1);
else
- thread = inf_tid_to_thread (inf, PIDGET (tid));
+ thread = inf_tid_to_thread (inf, ptid_get_tid (ptid));
if (!thread || thread->port == MACH_PORT_NULL)
{
/* TID is dead; try and find a new thread. */
if (inf_update_procs (inf) && inf->threads)
- tid = pid_to_ptid (inf->threads->tid); /* The first available thread. */
+ ptid = ptid_build (inf->pid, 0, inf->threads->tid); /* The first available thread. */
else
- tid = inferior_ptid; /* let wait_for_inferior handle exit case */
+ ptid = inferior_ptid; /* let wait_for_inferior handle exit case */
}
- if (thread && PIDGET (tid) >= 0 && status->kind != TARGET_WAITKIND_SPURIOUS
+ if (thread
+ && !ptid_equal (ptid, minus_one_ptid)
+ && status->kind != TARGET_WAITKIND_SPURIOUS
&& inf->pause_sc == 0 && thread->pause_sc == 0)
/* If something actually happened to THREAD, make sure we
suspend it. */
inf_update_suspends (inf);
}
- inf_debug (inf, "returning tid = %d, status = %s (%d)", PIDGET (tid),
+ inf_debug (inf, "returning ptid = %s, status = %s (%d)",
+ target_pid_to_str (ptid),
status->kind == TARGET_WAITKIND_EXITED ? "EXITED"
: status->kind == TARGET_WAITKIND_STOPPED ? "STOPPED"
: status->kind == TARGET_WAITKIND_SIGNALLED ? "SIGNALLED"
: "?",
status->value.integer);
- return tid;
+ return ptid;
}
\f
in multiple events returned by wait).
*/
static void
-gnu_resume (ptid_t tid, int step, enum target_signal sig)
+gnu_resume (struct target_ops *ops,
+ ptid_t ptid, int step, enum target_signal sig)
{
struct proc *step_thread = 0;
- struct inf *inf = current_inferior;
+ int resume_all;
+ struct inf *inf = gnu_current_inf;
- inf_debug (inf, "tid = %d, step = %d, sig = %d", PIDGET (tid), step, sig);
+ inf_debug (inf, "ptid = %s, step = %d, sig = %d",
+ target_pid_to_str (ptid), step, sig);
inf_validate_procinfo (inf);
inf_update_procs (inf);
- if (PIDGET (tid) < 0)
+ /* A specific PTID means `step only this process id'. */
+ resume_all = ptid_equal (ptid, minus_one_ptid);
+
+ if (resume_all)
/* Allow all threads to run, except perhaps single-stepping one. */
{
inf_debug (inf, "running all threads; tid = %d", PIDGET (inferior_ptid));
- tid = inferior_ptid; /* What to step. */
+ ptid = inferior_ptid; /* What to step. */
inf_set_threads_resume_sc (inf, 0, 1);
}
else
/* Just allow a single thread to run. */
{
- struct proc *thread = inf_tid_to_thread (inf, PIDGET (tid));
+ struct proc *thread = inf_tid_to_thread (inf, ptid_get_tid (ptid));
if (!thread)
- error (_("Can't run single thread id %d: no such thread!"), inf->pid);
- inf_debug (inf, "running one thread: %d/%d", inf->pid, thread->tid);
+ error (_("Can't run single thread id %s: no such thread!"),
+ target_pid_to_str (ptid));
+ inf_debug (inf, "running one thread: %s", target_pid_to_str (ptid));
inf_set_threads_resume_sc (inf, thread, 0);
}
if (step)
{
- step_thread = inf_tid_to_thread (inf, PIDGET (tid));
+ step_thread = inf_tid_to_thread (inf, ptid_get_tid (ptid));
if (!step_thread)
- warning (_("Can't step thread id %d: no such thread."), PIDGET (tid));
+ warning (_("Can't step thread id %s: no such thread."),
+ target_pid_to_str (ptid));
else
- inf_debug (inf, "stepping thread: %d/%d", inf->pid, step_thread->tid);
+ inf_debug (inf, "stepping thread: %s", target_pid_to_str (ptid));
}
if (step_thread != inf->step_thread)
inf_set_step_thread (inf, step_thread);
static void
gnu_kill_inferior (void)
{
- struct proc *task = current_inferior->task;
+ struct proc *task = gnu_current_inf->task;
if (task)
{
proc_debug (task, "terminating...");
task_terminate (task->port);
- inf_set_pid (current_inferior, -1);
+ inf_set_pid (gnu_current_inf, -1);
}
target_mourn_inferior ();
}
/* Clean up after the inferior dies. */
static void
-gnu_mourn_inferior (void)
+gnu_mourn_inferior (struct target_ops *ops)
{
- inf_debug (current_inferior, "rip");
- inf_detach (current_inferior);
+ inf_debug (gnu_current_inf, "rip");
+ inf_detach (gnu_current_inf);
unpush_target (&gnu_ops);
generic_mourn_inferior ();
}
static int
inf_pick_first_thread (void)
{
- if (current_inferior->task && current_inferior->threads)
+ if (gnu_current_inf->task && gnu_current_inf->threads)
/* The first thread. */
- return current_inferior->threads->tid;
+ return gnu_current_inf->threads->tid;
else
/* What may be the next thread. */
return next_thread_id;
static struct inf *
cur_inf (void)
{
- if (!current_inferior)
- current_inferior = make_inf ();
- return current_inferior;
+ if (!gnu_current_inf)
+ gnu_current_inf = make_inf ();
+ return gnu_current_inf;
}
static void
-gnu_create_inferior (char *exec_file, char *allargs, char **env,
+gnu_create_inferior (struct target_ops *ops,
+ char *exec_file, char *allargs, char **env,
int from_tty)
{
struct inf *inf = cur_inf ();
inf_attach (inf, pid);
- attach_flag = 0;
push_target (&gnu_ops);
inf->pending_execs = 2;
/* Now let the child run again, knowing that it will stop immediately
because of the ptrace. */
inf_resume (inf);
- inferior_ptid = pid_to_ptid (inf_pick_first_thread ());
+
+ /* We now have thread info. */
+ thread_change_ptid (inferior_ptid,
+ ptid_build (inf->pid, 0, inf_pick_first_thread ()));
startup_inferior (inf->pending_execs);
}
/* Attach to process PID, then initialize for debugging it
and wait for the trace-trap that results from attaching. */
static void
-gnu_attach (char *args, int from_tty)
+gnu_attach (struct target_ops *ops, char *args, int from_tty)
{
int pid;
char *exec_file;
struct inf *inf = cur_inf ();
+ struct inferior *inferior;
if (!args)
error_no_arg (_("process-id to attach"));
inf_debug (inf, "attaching to pid: %d", pid);
inf_attach (inf, pid);
- inf_update_procs (inf);
-
- inferior_ptid = pid_to_ptid (inf_pick_first_thread ());
- attach_flag = 1;
push_target (&gnu_ops);
+ inferior = add_inferior (pid);
+ inferior->attach_flag = 1;
+
+ inf_update_procs (inf);
+
+ inferior_ptid = ptid_build (pid, 0, inf_pick_first_thread ());
+
/* We have to initialize the terminal settings now, since the code
below might try to restore them. */
target_terminal_init ();
previously attached. It *might* work if the program was
started via fork. */
static void
-gnu_detach (char *args, int from_tty)
+gnu_detach (struct target_ops *ops, char *args, int from_tty)
{
+ int pid;
+
if (from_tty)
{
char *exec_file = get_exec_file (0);
if (exec_file)
printf_unfiltered ("Detaching from program `%s' pid %d\n",
- exec_file, current_inferior->pid);
+ exec_file, gnu_current_inf->pid);
else
- printf_unfiltered ("Detaching from pid %d\n", current_inferior->pid);
+ printf_unfiltered ("Detaching from pid %d\n", gnu_current_inf->pid);
gdb_flush (gdb_stdout);
}
- inf_detach (current_inferior);
+ pid = gnu_current_inf->pid;
+
+ inf_detach (gnu_current_inf);
inferior_ptid = null_ptid;
+ detach_inferior (pid);
unpush_target (&gnu_ops); /* Pop out of handling an inferior */
}
static void
gnu_terminal_init_inferior (void)
{
- gdb_assert (current_inferior);
- terminal_init_inferior_with_pgrp (current_inferior->pid);
+ gdb_assert (gnu_current_inf);
+ terminal_init_inferior_with_pgrp (gnu_current_inf->pid);
}
/* Get ready to modify the registers array. On machines which store
that registers contains all the registers from the program being
debugged. */
static void
-gnu_prepare_to_store (void)
+gnu_prepare_to_store (struct regcache *regcache)
{
-#ifdef CHILD_PREPARE_TO_STORE
- CHILD_PREPARE_TO_STORE ();
-#endif
}
static void
}
static void
-gnu_stop (void)
+gnu_stop (ptid_t ptid)
{
error (_("to_stop target function not implemented"));
}
-static char *
-gnu_pid_to_exec_file (int pid)
-{
- error (_("to_pid_to_exec_file target function not implemented"));
- return NULL;
-}
-
-
static int
-gnu_thread_alive (ptid_t tid)
+gnu_thread_alive (struct target_ops *ops, ptid_t ptid)
{
- inf_update_procs (current_inferior);
- return !!inf_tid_to_thread (current_inferior, PIDGET (tid));
+ inf_update_procs (gnu_current_inf);
+ return !!inf_tid_to_thread (gnu_current_inf,
+ ptid_get_tid (ptid));
}
\f
struct mem_attrib *attrib,
struct target_ops *target)
{
- task_t task = (current_inferior
- ? (current_inferior->task
- ? current_inferior->task->port : 0)
+ task_t task = (gnu_current_inf
+ ? (gnu_current_inf->task
+ ? gnu_current_inf->task->port : 0)
: 0);
if (task == MACH_PORT_NULL)
return 0;
else
{
- inf_debug (current_inferior, "%s %p[%d] %s %p",
+ inf_debug (gnu_current_inf, "%s %p[%d] %s %p",
write ? "writing" : "reading", (void *) memaddr, len,
write ? "<--" : "-->", myaddr);
if (write)
vm_address_t region_address, last_region_address, last_region_end;
vm_prot_t last_protection;
- if (current_inferior == 0 || current_inferior->task == 0)
+ if (gnu_current_inf == 0 || gnu_current_inf->task == 0)
return 0;
- task = current_inferior->task->port;
+ task = gnu_current_inf->task->port;
if (task == MACH_PORT_NULL)
return 0;
if (proc_is_task (proc))
sprintf (tid_str, "process %d", proc->inf->pid);
else
- sprintf (tid_str, "thread %d.%d",
- proc->inf->pid, pid_to_thread_id (MERGEPID (proc->tid, 0)));
+ sprintf (tid_str, "Thread %d.%d",
+ proc->inf->pid, proc->tid);
return tid_str;
}
static char *
-gnu_pid_to_str (ptid_t ptid)
+gnu_pid_to_str (struct target_ops *ops, ptid_t ptid)
{
- struct inf *inf = current_inferior;
- int tid = PIDGET (ptid);
+ struct inf *inf = gnu_current_inf;
+ int tid = ptid_get_tid (ptid);
struct proc *thread = inf_tid_to_thread (inf, tid);
if (thread)
}
\f
-extern void gnu_store_registers (struct regcache *regcache, int regno);
-extern void gnu_fetch_registers (struct regcache *regcache, int regno);
+extern void gnu_store_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno);
+extern void gnu_fetch_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno);
struct target_ops gnu_ops;
gnu_ops.to_doc = "GNU Hurd process"; /* to_doc */
gnu_ops.to_open = gnu_open; /* to_open */
gnu_ops.to_attach = gnu_attach; /* to_attach */
+ gnu_ops.to_attach_no_wait = 1; /* to_attach_no_wait */
gnu_ops.to_detach = gnu_detach; /* to_detach */
gnu_ops.to_resume = gnu_resume; /* to_resume */
gnu_ops.to_wait = gnu_wait; /* to_wait */
gnu_ops.to_thread_alive = gnu_thread_alive; /* to_thread_alive */
gnu_ops.to_pid_to_str = gnu_pid_to_str; /* to_pid_to_str */
gnu_ops.to_stop = gnu_stop; /* to_stop */
- gnu_ops.to_pid_to_exec_file = gnu_pid_to_exec_file; /* to_pid_to_exec_file */
gnu_ops.to_stratum = process_stratum; /* to_stratum */
gnu_ops.to_has_all_memory = 1; /* to_has_all_memory */
gnu_ops.to_has_memory = 1; /* to_has_memory */
cur_thread (void)
{
struct inf *inf = cur_inf ();
- struct proc *thread = inf_tid_to_thread (inf, PIDGET (inferior_ptid));
+ struct proc *thread = inf_tid_to_thread (inf,
+ ptid_get_tid (inferior_ptid));
if (!thread)
error (_("No current thread."));
return thread;
inf->signal_thread = 0;
else
{
- int tid = PIDGET (thread_id_to_pid (atoi (args)));
+ int tid = ptid_get_tid (thread_id_to_pid (atoi (args)));
if (tid < 0)
error (_("Thread ID %s not known. Use the \"info threads\" command to\n"
"see the IDs of currently known threads."), args);
vm_machine_attribute_val_t flush = MATTR_VAL_ICACHE_FLUSH;
error_t ret;
- ret = vm_machine_attribute (current_inferior->task->port,
+ ret = vm_machine_attribute (gnu_current_inf->task->port,
pc,
amount,
MATTR_CACHE,
projects / thirdparty / binutils-gdb.git / blobdiff