int server_waiting;
-static int extended_protocol;
+int extended_protocol;
static int response_needed;
static int exit_requested;
int multi_process;
int report_fork_events;
int report_vfork_events;
+int report_exec_events;
int non_stop;
int swbreak_feature;
int hwbreak_feature;
+/* True if the "vContSupported" feature is active. In that case, GDB
+ wants us to report whether single step is supported in the reply to
+ "vCont?" packet. */
+static int vCont_supported;
+
/* Whether we should attempt to disable the operating system's address
space randomization feature before starting an inferior. */
int disable_randomization = 1;
static void
queue_stop_reply (ptid_t ptid, struct target_waitstatus *status)
{
- struct vstop_notif *new_notif = xmalloc (sizeof (*new_notif));
+ struct vstop_notif *new_notif = XNEW (struct vstop_notif);
new_notif->ptid = ptid;
new_notif->status = *status;
}
static int
-remove_all_on_match_pid (QUEUE (notif_event_p) *q,
- QUEUE_ITER (notif_event_p) *iter,
- struct notif_event *event,
- void *data)
+remove_all_on_match_ptid (QUEUE (notif_event_p) *q,
+ QUEUE_ITER (notif_event_p) *iter,
+ struct notif_event *event,
+ void *data)
{
- int *pid = data;
+ ptid_t filter_ptid = *(ptid_t *) data;
+ struct vstop_notif *vstop_event = (struct vstop_notif *) event;
- if (*pid == -1
- || ptid_get_pid (((struct vstop_notif *) event)->ptid) == *pid)
+ if (ptid_match (vstop_event->ptid, filter_ptid))
{
if (q->free_func != NULL)
q->free_func (event);
return 1;
}
-/* Get rid of the currently pending stop replies for PID. If PID is
- -1, then apply to all processes. */
+/* See server.h. */
-static void
-discard_queued_stop_replies (int pid)
+void
+discard_queued_stop_replies (ptid_t ptid)
{
QUEUE_iterate (notif_event_p, notif_stop.queue,
- remove_all_on_match_pid, &pid);
+ remove_all_on_match_ptid, &ptid);
}
static void
count++;
for (i = 0; argv[i] != NULL; i++)
count++;
- new_argv = alloca (sizeof (char *) * count);
+ new_argv = XALLOCAVEC (char *, count);
count = 0;
for (i = 0; wrapper_argv[i] != NULL; i++)
new_argv[count++] = wrapper_argv[i];
last_ptid = mywait (pid_to_ptid (signal_pid), &last_status, 0, 0);
- if (last_status.kind != TARGET_WAITKIND_STOPPED)
- return signal_pid;
-
- do
+ if (last_status.kind == TARGET_WAITKIND_STOPPED)
{
- (*the_target->resume) (&resume_info, 1);
+ do
+ {
+ (*the_target->resume) (&resume_info, 1);
- last_ptid = mywait (pid_to_ptid (signal_pid), &last_status, 0, 0);
- if (last_status.kind != TARGET_WAITKIND_STOPPED)
- return signal_pid;
+ last_ptid = mywait (pid_to_ptid (signal_pid), &last_status, 0, 0);
+ if (last_status.kind != TARGET_WAITKIND_STOPPED)
+ break;
- current_thread->last_resume_kind = resume_stop;
- current_thread->last_status = last_status;
+ current_thread->last_resume_kind = resume_stop;
+ current_thread->last_status = last_status;
+ }
+ while (last_status.value.sig != GDB_SIGNAL_TRAP);
}
- while (last_status.value.sig != GDB_SIGNAL_TRAP);
-
+ target_arch_setup ();
return signal_pid;
}
(assuming success). */
last_ptid = mywait (pid_to_ptid (signal_pid), &last_status, 0, 0);
+ target_arch_setup ();
+
if (last_status.kind != TARGET_WAITKIND_EXITED
&& last_status.kind != TARGET_WAITKIND_SIGNALLED)
{
to as much of DATA/LEN as we could fit. IS_MORE controls
the first character of the response. */
static int
-write_qxfer_response (char *buf, const void *data, int len, int is_more)
+write_qxfer_response (char *buf, const gdb_byte *data, int len, int is_more)
{
int out_len;
return NULL;
}
+/* Handle btrace enabling in Intel(R) Processor Trace format. */
+
+static const char *
+handle_btrace_enable_pt (struct thread_info *thread)
+{
+ if (thread->btrace != NULL)
+ return "E.Btrace already enabled.";
+
+ current_btrace_conf.format = BTRACE_FORMAT_PT;
+ thread->btrace = target_enable_btrace (thread->entry.id,
+ ¤t_btrace_conf);
+ if (thread->btrace == NULL)
+ return "E.Could not enable btrace.";
+
+ return NULL;
+}
+
/* Handle btrace disabling. */
static const char *
if (strcmp (op, "bts") == 0)
err = handle_btrace_enable_bts (thread);
+ else if (strcmp (op, "pt") == 0)
+ err = handle_btrace_enable_pt (thread);
else if (strcmp (op, "off") == 0)
err = handle_btrace_disable (thread);
else
- err = "E.Bad Qbtrace operation. Use bts or off.";
+ err = "E.Bad Qbtrace operation. Use bts, pt, or off.";
if (err != 0)
strcpy (own_buf, err);
current_btrace_conf.bts.size = (unsigned int) size;
}
+ else if (strncmp (op, "pt:size=", strlen ("pt:size=")) == 0)
+ {
+ unsigned long size;
+ char *endp = NULL;
+
+ errno = 0;
+ size = strtoul (op + strlen ("pt:size="), &endp, 16);
+ if (endp == NULL || *endp != 0 || errno != 0 || size > UINT_MAX)
+ {
+ strcpy (own_buf, "E.Bad size value.");
+ return -1;
+ }
+
+ current_btrace_conf.pt.size = (unsigned int) size;
+ }
else
{
strcpy (own_buf, "E.Bad Qbtrace configuration option.");
res = prepare_to_access_memory ();
if (res == 0)
{
- res = read_inferior_memory (memaddr, myaddr, len);
+ if (set_desired_thread (1))
+ res = read_inferior_memory (memaddr, myaddr, len);
+ else
+ res = 1;
done_accessing_memory ();
return res == 0 ? len : -1;
ret = prepare_to_access_memory ();
if (ret == 0)
{
- ret = write_inferior_memory (memaddr, myaddr, len);
+ if (set_desired_thread (1))
+ ret = write_inferior_memory (memaddr, myaddr, len);
+ else
+ ret = EIO;
done_accessing_memory ();
}
return ret;
? search_space_len
: search_buf_size);
- found_ptr = memmem (search_buf, nr_search_bytes, pattern, pattern_len);
+ found_ptr = (gdb_byte *) memmem (search_buf, nr_search_bytes, pattern,
+ pattern_len);
if (found_ptr != NULL)
{
CORE_ADDR found_addr;
int cmd_name_len = sizeof ("qSearch:memory:") - 1;
- pattern = malloc (packet_len);
+ pattern = (gdb_byte *) malloc (packet_len);
if (pattern == NULL)
{
error ("Unable to allocate memory to perform the search");
if (search_space_len < search_buf_size)
search_buf_size = search_space_len;
- search_buf = malloc (search_buf_size);
+ search_buf = (gdb_byte *) malloc (search_buf_size);
if (search_buf == NULL)
{
free (pattern);
if (the_target->read_auxv == NULL || writebuf != NULL)
return -2;
- if (annex[0] != '\0' || !target_running ())
+ if (annex[0] != '\0' || current_thread == NULL)
return -1;
return (*the_target->read_auxv) (offset, readbuf, len);
}
else
{
- char *annex = alloca (strlen (const_annex) + 1);
+ char *annex = (char *) alloca (strlen (const_annex) + 1);
strcpy (annex, const_annex);
annex = unpack_varlen_hex (annex, &pid);
accumulate_file_name_length (struct inferior_list_entry *inf, void *arg)
{
struct dll_info *dll = (struct dll_info *) inf;
- unsigned int *total_len = arg;
+ unsigned int *total_len = (unsigned int *) arg;
/* Over-estimate the necessary memory. Assume that every character
in the library name must be escaped. */
emit_dll_description (struct inferior_list_entry *inf, void *arg)
{
struct dll_info *dll = (struct dll_info *) inf;
- char **p_ptr = arg;
+ char **p_ptr = (char **) arg;
char *p = *p_ptr;
char *name;
if (writebuf != NULL)
return -2;
- if (annex[0] != '\0' || !target_running ())
+ if (annex[0] != '\0' || current_thread == NULL)
return -1;
total_len = 64;
for_each_inferior_with_data (&all_dlls, accumulate_file_name_length,
&total_len);
- document = malloc (total_len);
+ document = (char *) malloc (total_len);
if (document == NULL)
return -1;
if (writebuf != NULL)
return -2;
- if (!target_running () || the_target->qxfer_libraries_svr4 == NULL)
+ if (current_thread == NULL || the_target->qxfer_libraries_svr4 == NULL)
return -1;
return the_target->qxfer_libraries_svr4 (annex, readbuf, writebuf, offset, len);
if (the_target->qxfer_siginfo == NULL)
return -2;
- if (annex[0] != '\0' || !target_running ())
+ if (annex[0] != '\0' || current_thread == NULL)
return -1;
return (*the_target->qxfer_siginfo) (annex, readbuf, writebuf, offset, len);
if (the_target->qxfer_spu == NULL)
return -2;
- if (!target_running ())
+ if (current_thread == NULL)
return -1;
return (*the_target->qxfer_spu) (annex, readbuf, writebuf, offset, len);
if (writebuf != NULL)
return -2;
- if (annex[0] != '\0' || !target_running () || current_traceframe == -1)
+ if (annex[0] != '\0' || current_thread == NULL || current_traceframe == -1)
return -1;
if (traceframe_read_sdata (current_traceframe, offset,
handle_qxfer_threads_worker (struct inferior_list_entry *inf, void *arg)
{
struct thread_info *thread = (struct thread_info *) inf;
- struct buffer *buffer = arg;
+ struct buffer *buffer = (struct buffer *) arg;
ptid_t ptid = thread_to_gdb_id (thread);
char ptid_s[100];
int core = target_core_of_thread (ptid);
if (writebuf != NULL)
return -2;
- if (!target_running () || annex[0] != '\0')
+ if (annex[0] != '\0')
return -1;
if (offset == 0)
if (the_target->read_loadmap == NULL)
return -2;
- if (!target_running ())
+ if (current_thread == NULL)
return -1;
return (*the_target->read_loadmap) (annex, offset, readbuf, len);
{
static struct buffer cache;
struct thread_info *thread;
- int type, result;
+ enum btrace_read_type type;
+ int result;
if (the_target->read_btrace == NULL || writebuf != NULL)
return -2;
- if (!target_running ())
- return -1;
-
if (ptid_equal (general_thread, null_ptid)
|| ptid_equal (general_thread, minus_one_ptid))
{
if (the_target->read_btrace_conf == NULL || writebuf != NULL)
return -2;
- if (annex[0] != '\0' || !target_running ())
+ if (annex[0] != '\0')
return -1;
if (ptid_equal (general_thread, null_ptid)
more. */
if (len > PBUFSIZ - 2)
len = PBUFSIZ - 2;
- data = malloc (len + 1);
+ data = (unsigned char *) malloc (len + 1);
if (data == NULL)
{
write_enn (own_buf);
unsigned char *data;
strcpy (own_buf, "E00");
- data = malloc (packet_len - (offset - own_buf));
+ data = (unsigned char *) malloc (packet_len - (offset - own_buf));
if (data == NULL)
{
write_enn (own_buf);
static void
supported_btrace_packets (char *buf)
{
+ int btrace_supported = 0;
+
if (target_supports_btrace (BTRACE_FORMAT_BTS))
{
strcat (buf, ";Qbtrace:bts+");
strcat (buf, ";Qbtrace-conf:bts:size+");
+
+ btrace_supported = 1;
}
- else
+
+ if (target_supports_btrace (BTRACE_FORMAT_PT))
+ {
+ strcat (buf, ";Qbtrace:pt+");
+ strcat (buf, ";Qbtrace-conf:pt:size+");
+
+ btrace_supported = 1;
+ }
+
+ if (!btrace_supported)
return;
strcat (buf, ";Qbtrace:off+");
if (target_supports_tracepoints ())
tracepoint_look_up_symbols ();
- if (target_running () && the_target->look_up_symbols != NULL)
+ if (current_thread != NULL && the_target->look_up_symbols != NULL)
(*the_target->look_up_symbols) ();
strcpy (own_buf, "OK");
char *p = &own_buf[10];
int gdb_supports_qRelocInsn = 0;
- /* Start processing qSupported packet. */
- target_process_qsupported (NULL);
-
/* Process each feature being provided by GDB. The first
feature will follow a ':', and latter features will follow
';'. */
{
char **qsupported = NULL;
int count = 0;
+ int unknown = 0;
int i;
/* Two passes, to avoid nested strtok calls in
p = strtok (NULL, ";"))
{
count++;
- qsupported = xrealloc (qsupported, count * sizeof (char *));
+ qsupported = XRESIZEVEC (char *, qsupported, count);
qsupported[count - 1] = xstrdup (p);
}
if (target_supports_vfork_events ())
report_vfork_events = 1;
}
+ else if (strcmp (p, "exec-events+") == 0)
+ {
+ /* GDB supports and wants exec events if possible. */
+ if (target_supports_exec_events ())
+ report_exec_events = 1;
+ }
+ else if (strcmp (p, "vContSupported+") == 0)
+ vCont_supported = 1;
else
- target_process_qsupported (p);
-
- free (p);
+ {
+ /* Move the unknown features all together. */
+ qsupported[i] = NULL;
+ qsupported[unknown] = p;
+ unknown++;
+ }
}
+ /* Give the target backend a chance to process the unknown
+ features. */
+ target_process_qsupported (qsupported, unknown);
+
+ for (i = 0; i < count; i++)
+ free (qsupported[i]);
free (qsupported);
}
if (target_supports_vfork_events ())
strcat (own_buf, ";vfork-events+");
+ if (target_supports_exec_events ())
+ strcat (own_buf, ";exec-events+");
+
if (target_supports_non_stop ())
strcat (own_buf, ";QNonStop+");
strcat (own_buf, ";tracenz+");
}
- /* Support target-side breakpoint conditions and commands. */
- if (target_supports_conditional_breakpoints ())
- strcat (own_buf, ";ConditionalBreakpoints+");
+ if (target_supports_hardware_single_step ())
+ {
+ /* Support target-side breakpoint conditions and commands.
+ GDBserver needs to step over the breakpoint if the condition
+ is false. GDBserver software single step is too simple, so
+ disable conditional breakpoints if the target doesn't have
+ hardware single step. */
+ strcat (own_buf, ";ConditionalBreakpoints+");
+ }
strcat (own_buf, ";BreakpointCommands+");
if (target_supports_agent ())
if (the_target->pid_to_exec_file != NULL)
strcat (own_buf, ";qXfer:exec-file:read+");
+ strcat (own_buf, ";vContSupported+");
+
/* Reinitialize components as needed for the new connection. */
hostio_handle_new_gdb_connection ();
target_handle_new_gdb_connection ();
/* Handle "monitor" commands. */
if (startswith (own_buf, "qRcmd,"))
{
- char *mon = malloc (PBUFSIZ);
+ char *mon = (char *) malloc (PBUFSIZ);
int len = strlen (own_buf + 6);
if (mon == NULL)
static int
visit_actioned_threads (struct inferior_list_entry *entry, void *datap)
{
- struct visit_actioned_threads_data *data = datap;
+ struct visit_actioned_threads_data *data
+ = (struct visit_actioned_threads_data *) datap;
const struct thread_resume *actions = data->actions;
size_t num_actions = data->num_actions;
visit_actioned_threads_callback_ftype *callback = data->callback;
p = strchr (p, ';');
}
- resume_info = malloc (n * sizeof (resume_info[0]));
+ resume_info = (struct thread_resume *) malloc (n * sizeof (resume_info[0]));
if (resume_info == NULL)
goto err;
goto err;
p = q;
- if (!gdb_signal_to_host_p (sig))
+ if (!gdb_signal_to_host_p ((enum gdb_signal) sig))
goto err;
- resume_info[i].sig = gdb_signal_to_host (sig);
+ resume_info[i].sig = gdb_signal_to_host ((enum gdb_signal) sig);
}
else if (p[0] == 'r')
{
if (i < n)
resume_info[i] = default_action;
- set_desired_thread (0);
-
resume (resume_info, n);
free (resume_info);
return;
new_argc++;
}
- new_argv = calloc (new_argc + 2, sizeof (char *));
+ new_argv = (char **) calloc (new_argc + 2, sizeof (char *));
if (new_argv == NULL)
{
write_enn (own_buf);
else
{
/* FIXME: Fail request if out of memory instead of dying. */
- new_argv[i] = xmalloc (1 + (next_p - p) / 2);
+ new_argv[i] = (char *) xmalloc (1 + (next_p - p) / 2);
hex2bin (p, (gdb_byte *) new_argv[i], (next_p - p) / 2);
new_argv[i][(next_p - p) / 2] = '\0';
}
last_status.kind = TARGET_WAITKIND_SIGNALLED;
last_status.value.sig = GDB_SIGNAL_KILL;
last_ptid = pid_to_ptid (pid);
- discard_queued_stop_replies (pid);
+ discard_queued_stop_replies (last_ptid);
write_ok (own_buf);
return 1;
}
if (startswith (own_buf, "vCont?"))
{
- strcpy (own_buf, "vCont;c;C;s;S;t");
+ strcpy (own_buf, "vCont;c;C;t");
+
+ if (target_supports_hardware_single_step () || !vCont_supported)
+ {
+ /* If target supports hardware single step, add actions s
+ and S to the list of supported actions. On the other
+ hand, if GDB doesn't request the supported vCont actions
+ in qSupported packet, add s and S to the list too. */
+ own_buf = own_buf + strlen (own_buf);
+ strcpy (own_buf, ";s;S");
+ }
+
if (target_supports_range_stepping ())
{
own_buf = own_buf + strlen (own_buf);
int n = 0;
int valid_cont_thread;
- set_desired_thread (0);
-
valid_cont_thread = (!ptid_equal (cont_thread, null_ptid)
&& !ptid_equal (cont_thread, minus_one_ptid));
manage the thread's last_status field. */
if (the_target->thread_stopped == NULL)
{
- struct vstop_notif *new_notif = xmalloc (sizeof (*new_notif));
+ struct vstop_notif *new_notif = XNEW (struct vstop_notif);
new_notif->ptid = entry->id;
new_notif->status = thread->last_status;
int pid = ptid_get_pid (process->entry.id);
kill_inferior (pid);
- discard_queued_stop_replies (pid);
+ discard_queued_stop_replies (pid_to_ptid (pid));
}
/* Callback for for_each_inferior to detach or kill the inferior,
else
kill_inferior (pid);
- discard_queued_stop_replies (pid);
+ discard_queued_stop_replies (pid_to_ptid (pid));
}
/* for_each_inferior callback for detach_or_kill_for_exit to print
initialize_event_loop ();
if (target_supports_tracepoints ())
initialize_tracepoint ();
+ initialize_notif ();
- own_buf = xmalloc (PBUFSIZ + 1);
- mem_buf = xmalloc (PBUFSIZ);
+ own_buf = (char *) xmalloc (PBUFSIZ + 1);
+ mem_buf = (unsigned char *) xmalloc (PBUFSIZ);
if (pid == 0 && *next_arg != NULL)
{
int i, n;
n = argc - (next_arg - argv);
- program_argv = xmalloc (sizeof (char *) * (n + 1));
+ program_argv = XNEWVEC (char *, n + 1);
for (i = 0; i < n; i++)
program_argv[i] = xstrdup (next_arg[i]);
program_argv[i] = NULL;
}
make_cleanup (detach_or_kill_for_exit_cleanup, NULL);
- initialize_notif ();
-
/* Don't report shared library events on the initial connection,
even if some libraries are preloaded. Avoids the "stopped by
shared library event" notice on gdb side. */
multi_process = 0;
report_fork_events = 0;
report_vfork_events = 0;
+ report_exec_events = 0;
/* Be sure we're out of tfind mode. */
current_traceframe = -1;
cont_thread = null_ptid;
swbreak_feature = 0;
hwbreak_feature = 0;
+ vCont_supported = 0;
remote_open (port);
/* Get rid of any pending statuses. An eventual reconnection
(by the same GDB instance or another) will refresh all its
state from scratch. */
- discard_queued_stop_replies (-1);
+ discard_queued_stop_replies (minus_one_ptid);
for_each_inferior (&all_threads,
clear_pending_status_callback);
}
CATCH (exception, RETURN_MASK_ERROR)
{
+ fflush (stdout);
+ fprintf (stderr, "gdbserver: %s\n", exception.message);
+
if (response_needed)
{
write_enn (own_buf);
putpkt (own_buf);
}
+
+ if (run_once)
+ throw_quit ("Quit");
}
END_CATCH
}
write_enn (own_buf);
else
{
- discard_queued_stop_replies (pid);
+ discard_queued_stop_replies (pid_to_ptid (pid));
write_ok (own_buf);
if (extended_protocol)
(struct thread_info *) find_inferior_id (&all_threads,
general_thread);
if (thread == NULL)
- {
- thread = get_first_thread ();
- thread_id = thread->entry.id;
- }
+ thread = get_first_thread ();
+ thread_id = thread->entry.id;
}
general_thread = thread_id;
set_desired_thread (1);
+ gdb_assert (current_thread != NULL);
}
else if (own_buf[1] == 'c')
cont_thread = thread_id;
{
struct regcache *regcache;
- set_desired_thread (1);
- regcache = get_thread_regcache (current_thread, 1);
- registers_to_string (regcache, own_buf);
+ if (!set_desired_thread (1))
+ write_enn (own_buf);
+ else
+ {
+ regcache = get_thread_regcache (current_thread, 1);
+ registers_to_string (regcache, own_buf);
+ }
}
break;
case 'G':
{
struct regcache *regcache;
- set_desired_thread (1);
- regcache = get_thread_regcache (current_thread, 1);
- registers_from_string (regcache, &own_buf[1]);
- write_ok (own_buf);
+ if (!set_desired_thread (1))
+ write_enn (own_buf);
+ else
+ {
+ regcache = get_thread_regcache (current_thread, 1);
+ registers_from_string (regcache, &own_buf[1]);
+ write_ok (own_buf);
+ }
}
break;
case 'm':
case 'C':
require_running (own_buf);
hex2bin (own_buf + 1, &sig, 1);
- if (gdb_signal_to_host_p (sig))
- signal = gdb_signal_to_host (sig);
+ if (gdb_signal_to_host_p ((enum gdb_signal) sig))
+ signal = gdb_signal_to_host ((enum gdb_signal) sig);
else
signal = 0;
myresume (own_buf, 0, signal);
case 'S':
require_running (own_buf);
hex2bin (own_buf + 1, &sig, 1);
- if (gdb_signal_to_host_p (sig))
- signal = gdb_signal_to_host (sig);
+ if (gdb_signal_to_host_p ((enum gdb_signal) sig))
+ signal = gdb_signal_to_host ((enum gdb_signal) sig);
else
signal = 0;
myresume (own_buf, 1, signal);
{
char *dataptr;
ULONGEST addr;
- int len;
+ int kind;
char type = own_buf[1];
int res;
const int insert = ch == 'Z';
char *p = &own_buf[3];
p = unpack_varlen_hex (p, &addr);
- len = strtol (p + 1, &dataptr, 16);
+ kind = strtol (p + 1, &dataptr, 16);
if (insert)
{
struct breakpoint *bp;
- bp = set_gdb_breakpoint (type, addr, len, &res);
+ bp = set_gdb_breakpoint (type, addr, kind, &res);
if (bp != NULL)
{
res = 0;
}
}
else
- res = delete_gdb_breakpoint (type, addr, len);
+ res = delete_gdb_breakpoint (type, addr, kind);
if (res == 0)
write_ok (own_buf);
/* Wait till we are at 1st instruction in prog. */
if (program_argv != NULL)
- start_inferior (program_argv);
+ {
+ start_inferior (program_argv);
+ if (last_status.kind == TARGET_WAITKIND_STOPPED)
+ {
+ /* Stopped at the first instruction of the target
+ process. */
+ general_thread = last_ptid;
+ }
+ else
+ {
+ /* Something went wrong. */
+ general_thread = null_ptid;
+ }
+ }
else
{
last_status.kind = TARGET_WAITKIND_EXITED;
}
else
{
- struct vstop_notif *vstop_notif
- = xmalloc (sizeof (struct vstop_notif));
+ struct vstop_notif *vstop_notif = XNEW (struct vstop_notif);
vstop_notif->status = last_status;
vstop_notif->ptid = last_ptid;
projects / deliverable / binutils-gdb.git / blobdiff