remote_notice_new_inferior (item.ptid, executing);
- thread_info *tp = find_thread_ptid (item.ptid);
+ tp = find_thread_ptid (item.ptid);
remote_thread_info *info = get_remote_thread_info (tp);
info->core = item.core;
info->extra = std::move (item.extra);
ptid_t event_ptid;
struct target_waitstatus ws;
int ignore_event = 0;
- struct thread_info *thread;
memset (&ws, 0, sizeof (ws));
event_ptid = target_wait (waiton_ptid, &ws, TARGET_WNOHANG);
if (ignore_event)
continue;
- thread = find_thread_ptid (event_ptid);
+ struct thread_info *evthread = find_thread_ptid (event_ptid);
if (ws.kind == TARGET_WAITKIND_STOPPED)
{
instead of signal 0. Suppress it. */
if (sig == GDB_SIGNAL_TRAP)
sig = GDB_SIGNAL_0;
- thread->suspend.stop_signal = sig;
+ evthread->suspend.stop_signal = sig;
ws.value.sig = sig;
}
- thread->suspend.waitstatus = ws;
+ evthread->suspend.waitstatus = ws;
if (ws.kind != TARGET_WAITKIND_STOPPED
|| ws.value.sig != GDB_SIGNAL_0)
- thread->suspend.waitstatus_pending_p = 1;
+ evthread->suspend.waitstatus_pending_p = 1;
set_executing (event_ptid, 0);
set_running (event_ptid, 0);
- get_remote_thread_info (thread)->vcont_resumed = 0;
+ get_remote_thread_info (evthread)->vcont_resumed = 0;
}
/* "Notice" the new inferiors before anything related to
break;
case 'w': /* Thread exited. */
{
- const char *p;
ULONGEST value;
event->ws.kind = TARGET_WAITKIND_THREAD_EXITED;
case 'W': /* Target exited. */
case 'X':
{
- const char *p;
int pid;
ULONGEST value;
break;
case 'N': case 'T': case 'S': case 'X': case 'W':
{
- struct stop_reply *stop_reply;
-
/* There is a stop reply to handle. */
rs->waiting_for_stop_reply = 0;
if (remote_exec_file[0])
error (_("Remote target does not support \"set remote exec-file\""));
if (!args.empty ())
- error (_("Remote target does not support \"set args\" or run <ARGS>"));
+ error (_("Remote target does not support \"set args\" or run ARGS"));
/* Fall back to "R". */
extended_remote_restart ();
&remote_protocol_packets[PACKET_qGetTLSAddr]);
if (result == PACKET_OK)
{
- ULONGEST result;
+ ULONGEST addr;
- unpack_varlen_hex (rs->buf, &result);
- return result;
+ unpack_varlen_hex (rs->buf, &addr);
+ return addr;
}
else if (result == PACKET_UNKNOWN)
throw_error (TLS_GENERIC_ERROR,
&remote_protocol_packets[PACKET_qGetTIBAddr]);
if (result == PACKET_OK)
{
- ULONGEST result;
-
- unpack_varlen_hex (rs->buf, &result);
+ ULONGEST val;
+ unpack_varlen_hex (rs->buf, &val);
if (addr)
- *addr = (CORE_ADDR) result;
+ *addr = (CORE_ADDR) val;
return true;
}
else if (result == PACKET_UNKNOWN)
void
remote_target::download_tracepoint (struct bp_location *loc)
{
-#define BUF_SIZE 2048
-
CORE_ADDR tpaddr;
char addrbuf[40];
- char buf[BUF_SIZE];
std::vector<std::string> tdp_actions;
std::vector<std::string> stepping_actions;
char *pkt;
struct breakpoint *b = loc->owner;
struct tracepoint *t = (struct tracepoint *) b;
struct remote_state *rs = get_remote_state ();
+ int ret;
+ const char *err_msg = _("Tracepoint packet too large for target.");
+ size_t size_left;
+
+ /* We use a buffer other than rs->buf because we'll build strings
+ across multiple statements, and other statements in between could
+ modify rs->buf. */
+ gdb::char_vector buf (get_remote_packet_size ());
encode_actions_rsp (loc, &tdp_actions, &stepping_actions);
tpaddr = loc->address;
sprintf_vma (addrbuf, tpaddr);
- xsnprintf (buf, BUF_SIZE, "QTDP:%x:%s:%c:%lx:%x", b->number,
- addrbuf, /* address */
- (b->enable_state == bp_enabled ? 'E' : 'D'),
- t->step_count, t->pass_count);
+ ret = snprintf (buf.data (), buf.size (), "QTDP:%x:%s:%c:%lx:%x",
+ b->number, addrbuf, /* address */
+ (b->enable_state == bp_enabled ? 'E' : 'D'),
+ t->step_count, t->pass_count);
+
+ if (ret < 0 || ret >= buf.size ())
+ error ("%s", err_msg);
+
/* Fast tracepoints are mostly handled by the target, but we can
tell the target how big of an instruction block should be moved
around. */
{
if (gdbarch_fast_tracepoint_valid_at (loc->gdbarch, tpaddr,
NULL))
- xsnprintf (buf + strlen (buf), BUF_SIZE - strlen (buf), ":F%x",
- gdb_insn_length (loc->gdbarch, tpaddr));
+ {
+ size_left = buf.size () - strlen (buf.data ());
+ ret = snprintf (buf.data () + strlen (buf.data ()),
+ size_left, ":F%x",
+ gdb_insn_length (loc->gdbarch, tpaddr));
+
+ if (ret < 0 || ret >= size_left)
+ error ("%s", err_msg);
+ }
else
/* If it passed validation at definition but fails now,
something is very wrong. */
struct static_tracepoint_marker marker;
if (target_static_tracepoint_marker_at (tpaddr, &marker))
- strcat (buf, ":S");
+ {
+ size_left = buf.size () - strlen (buf.data ());
+ ret = snprintf (buf.data () + strlen (buf.data ()),
+ size_left, ":S");
+
+ if (ret < 0 || ret >= size_left)
+ error ("%s", err_msg);
+ }
else
error (_("Static tracepoint not valid during download"));
}
capabilities at definition time. */
if (remote_supports_cond_tracepoints ())
{
- agent_expr_up aexpr = gen_eval_for_expr (tpaddr, loc->cond.get ());
- xsnprintf (buf + strlen (buf), BUF_SIZE - strlen (buf), ":X%x,",
- aexpr->len);
- pkt = buf + strlen (buf);
+ agent_expr_up aexpr = gen_eval_for_expr (tpaddr,
+ loc->cond.get ());
+
+ size_left = buf.size () - strlen (buf.data ());
+
+ ret = snprintf (buf.data () + strlen (buf.data ()),
+ size_left, ":X%x,", aexpr->len);
+
+ if (ret < 0 || ret >= size_left)
+ error ("%s", err_msg);
+
+ size_left = buf.size () - strlen (buf.data ());
+
+ /* Two bytes to encode each aexpr byte, plus the terminating
+ null byte. */
+ if (aexpr->len * 2 + 1 > size_left)
+ error ("%s", err_msg);
+
+ pkt = buf.data () + strlen (buf.data ());
+
for (int ndx = 0; ndx < aexpr->len; ++ndx)
pkt = pack_hex_byte (pkt, aexpr->buf[ndx]);
*pkt = '\0';
}
if (b->commands || *default_collect)
- strcat (buf, "-");
- putpkt (buf);
+ {
+ size_left = buf.size () - strlen (buf.data ());
+
+ ret = snprintf (buf.data () + strlen (buf.data ()),
+ size_left, "-");
+
+ if (ret < 0 || ret >= size_left)
+ error ("%s", err_msg);
+ }
+
+ putpkt (buf.data ());
remote_get_noisy_reply ();
if (strcmp (rs->buf, "OK"))
error (_("Target does not support tracepoints."));
{
QUIT; /* Allow user to bail out with ^C. */
- bool has_more = (action_it != tdp_actions.end ()
+ bool has_more = ((action_it + 1) != tdp_actions.end ()
|| !stepping_actions.empty ());
- xsnprintf (buf, BUF_SIZE, "QTDP:-%x:%s:%s%c",
- b->number, addrbuf, /* address */
- action_it->c_str (),
- has_more ? '-' : 0);
- putpkt (buf);
+ ret = snprintf (buf.data (), buf.size (), "QTDP:-%x:%s:%s%c",
+ b->number, addrbuf, /* address */
+ action_it->c_str (),
+ has_more ? '-' : 0);
+
+ if (ret < 0 || ret >= buf.size ())
+ error ("%s", err_msg);
+
+ putpkt (buf.data ());
remote_get_noisy_reply ();
if (strcmp (rs->buf, "OK"))
error (_("Error on target while setting tracepoints."));
}
- for (auto action_it = stepping_actions.begin ();
- action_it != stepping_actions.end (); action_it++)
- {
- QUIT; /* Allow user to bail out with ^C. */
-
- bool is_first = action_it == stepping_actions.begin ();
- bool has_more = action_it != stepping_actions.end ();
-
- xsnprintf (buf, BUF_SIZE, "QTDP:-%x:%s:%s%s%s",
- b->number, addrbuf, /* address */
- is_first ? "S" : "",
- action_it->c_str (),
- has_more ? "-" : "");
- putpkt (buf);
- remote_get_noisy_reply ();
- if (strcmp (rs->buf, "OK"))
- error (_("Error on target while setting tracepoints."));
- }
+ for (auto action_it = stepping_actions.begin ();
+ action_it != stepping_actions.end (); action_it++)
+ {
+ QUIT; /* Allow user to bail out with ^C. */
+
+ bool is_first = action_it == stepping_actions.begin ();
+ bool has_more = (action_it + 1) != stepping_actions.end ();
+
+ ret = snprintf (buf.data (), buf.size (), "QTDP:-%x:%s:%s%s%s",
+ b->number, addrbuf, /* address */
+ is_first ? "S" : "",
+ action_it->c_str (),
+ has_more ? "-" : "");
+
+ if (ret < 0 || ret >= buf.size ())
+ error ("%s", err_msg);
+
+ putpkt (buf.data ());
+ remote_get_noisy_reply ();
+ if (strcmp (rs->buf, "OK"))
+ error (_("Error on target while setting tracepoints."));
+ }
if (packet_support (PACKET_TracepointSource) == PACKET_ENABLE)
{
if (b->location != NULL)
{
- strcpy (buf, "QTDPsrc:");
+ ret = snprintf (buf.data (), buf.size (), "QTDPsrc:");
+
+ if (ret < 0 || ret >= buf.size ())
+ error ("%s", err_msg);
+
encode_source_string (b->number, loc->address, "at",
event_location_to_string (b->location.get ()),
- buf + strlen (buf), 2048 - strlen (buf));
- putpkt (buf);
+ buf.data () + strlen (buf.data ()),
+ buf.size () - strlen (buf.data ()));
+ putpkt (buf.data ());
remote_get_noisy_reply ();
if (strcmp (rs->buf, "OK"))
warning (_("Target does not support source download."));
}
if (b->cond_string)
{
- strcpy (buf, "QTDPsrc:");
+ ret = snprintf (buf.data (), buf.size (), "QTDPsrc:");
+
+ if (ret < 0 || ret >= buf.size ())
+ error ("%s", err_msg);
+
encode_source_string (b->number, loc->address,
- "cond", b->cond_string, buf + strlen (buf),
- 2048 - strlen (buf));
- putpkt (buf);
+ "cond", b->cond_string,
+ buf.data () + strlen (buf.data ()),
+ buf.size () - strlen (buf.data ()));
+ putpkt (buf.data ());
remote_get_noisy_reply ();
if (strcmp (rs->buf, "OK"))
warning (_("Target does not support source download."));
projects / deliverable / binutils-gdb.git / blobdiff