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* inferiors.c (struct thread_info): Add gdb_id.

Browse source 
(add_thread): Add gdb_id argument.
	(thread_id_to_gdb_id, thread_to_gdb_id, gdb_id_to_thread_id): New.
	* linux-low.c (linux_create_inferior, linux_attach_lwp): Update
	calls to add_thread.
	* remote-utils.c (prepare_resume_reply: Use thread_to_gdb_id.
	* server.c (handle_query): Use thread_to_gdb_id.
	(handle_v_cont, main): Use gdb_id_to_thread_id.
	* server.h (add_thread): Update prototype.
	(thread_id_to_gdb_id, thread_to_gdb_id, gdb_id_to_thread_id): New
	prototypes.
This commit is contained in:
Daniel Jacobowitz 2005-07-13 15:02:49 +00:00
parent 5a1f5858d4
commit a06660f799
6 changed files with 115 additions and 27 deletions
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14
gdb/gdbserver/ChangeLog
View file

@ -1,3 +1,17 @@
2005-07-13 Daniel Jacobowitz <dan@codesourcery.com>
* inferiors.c (struct thread_info): Add gdb_id.
(add_thread): Add gdb_id argument.
(thread_id_to_gdb_id, thread_to_gdb_id, gdb_id_to_thread_id): New.
* linux-low.c (linux_create_inferior, linux_attach_lwp): Update
calls to add_thread.
* remote-utils.c (prepare_resume_reply: Use thread_to_gdb_id.
* server.c (handle_query): Use thread_to_gdb_id.
(handle_v_cont, main): Use gdb_id_to_thread_id.
* server.h (add_thread): Update prototype.
(thread_id_to_gdb_id, thread_to_gdb_id, gdb_id_to_thread_id): New
prototypes.
2005-07-13 Daniel Jacobowitz <dan@codesourcery.com>
* linux-low.c (fetch_register, usr_store_inferior_registers): Handle

42
gdb/gdbserver/inferiors.c
View file

@ -30,6 +30,7 @@ struct thread_info
struct inferior_list_entry entry;
void *target_data;
void *regcache_data;
unsigned int gdb_id;
};
struct inferior_list all_threads;
@ -102,7 +103,7 @@ remove_inferior (struct inferior_list *list,
}
void
add_thread (unsigned long thread_id, void *target_data)
add_thread (unsigned long thread_id, void *target_data, unsigned int gdb_id)
{
struct thread_info *new_thread
= (struct thread_info *) malloc (sizeof (*new_thread));
@ -118,6 +119,45 @@ add_thread (unsigned long thread_id, void *target_data)
new_thread->target_data = target_data;
set_inferior_regcache_data (new_thread, new_register_cache ());
new_thread->gdb_id = gdb_id;
}
unsigned int
thread_id_to_gdb_id (unsigned long thread_id)
{
struct inferior_list_entry *inf = all_threads.head;
while (inf != NULL)
{
struct thread_info *thread = get_thread (inf);
if (inf->id == thread_id)
return thread->gdb_id;
inf = inf->next;
}
return 0;
}
unsigned int
thread_to_gdb_id (struct thread_info *thread)
{
return thread->gdb_id;
}
unsigned long
gdb_id_to_thread_id (unsigned int gdb_id)
{
struct inferior_list_entry *inf = all_threads.head;
while (inf != NULL)
{
struct thread_info *thread = get_thread (inf);
if (thread->gdb_id == gdb_id)
return inf->id;
inf = inf->next;
}
return 0;
}
static void

4
gdb/gdbserver/linux-low.c
View file

@ -160,7 +160,7 @@ linux_create_inferior (char *program, char **allargs)
}
new_process = add_process (pid);
add_thread (pid, new_process);
add_thread (pid, new_process, pid);
return pid;
}
@ -185,7 +185,7 @@ linux_attach_lwp (unsigned long pid, unsigned long tid)
}
new_process = (struct process_info *) add_process (pid);
add_thread (tid, new_process);
add_thread (tid, new_process, pid);
/* The next time we wait for this LWP we'll see a SIGSTOP as PTRACE_ATTACH
brings it to a halt. We should ignore that SIGSTOP and resume the process

4
gdb/gdbserver/remote-utils.c
View file

@ -683,6 +683,8 @@ prepare_resume_reply (char *buf, char status, unsigned char signo)
{
/* FIXME right place to set this? */
thread_from_wait = ((struct inferior_list_entry *)current_inferior)->id;
unsigned int gdb_id_from_wait = thread_to_gdb_id (current_inferior);
if (debug_threads)
fprintf (stderr, "Writing resume reply for %ld\n\n", thread_from_wait);
/* This if (1) ought to be unnecessary. But remote_wait in GDB
@ -692,7 +694,7 @@ prepare_resume_reply (char *buf, char status, unsigned char signo)
if (1 || old_thread_from_wait != thread_from_wait)
{
general_thread = thread_from_wait;
sprintf (buf, "thread:%lx;", thread_from_wait);
sprintf (buf, "thread:%x;", gdb_id_from_wait);
buf += strlen (buf);
old_thread_from_wait = thread_from_wait;
}

65
gdb/gdbserver/server.c
View file

@ -103,7 +103,7 @@ handle_query (char *own_buf)
if (strcmp ("qfThreadInfo", own_buf) == 0)
{
thread_ptr = all_threads.head;
sprintf (own_buf, "m%lx", thread_ptr->id);
sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr));
thread_ptr = thread_ptr->next;
return;
}
@ -112,7 +112,7 @@ handle_query (char *own_buf)
{
if (thread_ptr != NULL)
{
sprintf (own_buf, "m%lx", thread_ptr->id);
sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr));
thread_ptr = thread_ptr->next;
return;
}
@ -218,13 +218,21 @@ handle_v_cont (char *own_buf, char *status, int *signal)
}
else if (p[0] == ':')
{
resume_info[i].thread = strtoul (p + 1, &q, 16);
unsigned int gdb_id = strtoul (p + 1, &q, 16);
unsigned long thread_id;
if (p == q)
goto err;
p = q;
if (p[0] != ';' && p[0] != 0)
goto err;
thread_id = gdb_id_to_thread_id (gdb_id);
if (thread_id)
resume_info[i].thread = thread_id;
else
goto err;
i++;
}
}
@ -431,26 +439,35 @@ main (int argc, char *argv[])
prepare_resume_reply (own_buf, status, signal);
break;
case 'H':
switch (own_buf[1])
if (own_buf[1] == 'c' || own_buf[1] == 'g' || own_buf[1] == 's')
{
case 'g':
general_thread = strtoul (&own_buf[2], NULL, 16);
write_ok (own_buf);
unsigned long gdb_id, thread_id;
gdb_id = strtoul (&own_buf[2], NULL, 16);
thread_id = gdb_id_to_thread_id (gdb_id);
if (thread_id == 0)
{
write_enn (own_buf);
break;
}
if (own_buf[1] == 'g')
{
general_thread = thread_id;
set_desired_inferior (1);
break;
case 'c':
cont_thread = strtoul (&own_buf[2], NULL, 16);
}
else if (own_buf[1] == 'c')
cont_thread = thread_id;
else if (own_buf[1] == 's')
step_thread = thread_id;
write_ok (own_buf);
break;
case 's':
step_thread = strtoul (&own_buf[2], NULL, 16);
write_ok (own_buf);
break;
default:
}
else
{
/* Silently ignore it so that gdb can extend the protocol
without compatibility headaches. */
own_buf[0] = '\0';
break;
}
break;
case 'g':
@ -592,10 +609,22 @@ main (int argc, char *argv[])
break;
}
case 'T':
if (mythread_alive (strtoul (&own_buf[1], NULL, 16)))
{
unsigned long gdb_id, thread_id;
gdb_id = strtoul (&own_buf[1], NULL, 16);
thread_id = gdb_id_to_thread_id (gdb_id);
if (thread_id == 0)
{
write_enn (own_buf);
break;
}
if (mythread_alive (thread_id))
write_ok (own_buf);
else
write_enn (own_buf);
}
break;
case 'R':
/* Restarting the inferior is only supported in the

5
gdb/gdbserver/server.h
View file

@ -97,7 +97,10 @@ extern struct thread_info *current_inferior;
void remove_inferior (struct inferior_list *list,
struct inferior_list_entry *entry);
void remove_thread (struct thread_info *thread);
void add_thread (unsigned long thread_id, void *target_data);
void add_thread (unsigned long thread_id, void *target_data, unsigned int);
unsigned int thread_id_to_gdb_id (unsigned long);
unsigned int thread_to_gdb_id (struct thread_info *);
unsigned long gdb_id_to_thread_id (unsigned int);
void clear_inferiors (void);
struct inferior_list_entry *find_inferior
(struct inferior_list *,