int server_waiting;
-static int extended_protocol;
+int extended_protocol;
static int response_needed;
static int exit_requested;
int run_once;
int multi_process;
+int report_fork_events;
+int report_vfork_events;
int non_stop;
int swbreak_feature;
int hwbreak_feature;
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)
{
current_thread->last_resume_kind = resume_stop;
current_thread->last_status = last_status;
}
+ else
+ mourn_inferior (find_process_pid (ptid_get_pid (last_ptid)));
return signal_pid;
}
else
buf[0] = 'l';
- return remote_escape_output (data, len, (unsigned char *) buf + 1, &out_len,
- PBUFSIZ - 2) + 1;
+ return remote_escape_output (data, len, 1, (unsigned char *) buf + 1,
+ &out_len, PBUFSIZ - 2) + 1;
}
/* Handle btrace enabling in BTS format. */
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.");
{
char *mode = own_buf + 9;
int req = -1;
- char *req_str;
+ const char *req_str;
if (strcmp (mode, "0") == 0)
req = 0;
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;
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);
}
+/* Handle qXfer:exec-file:read. */
+
+static int
+handle_qxfer_exec_file (const char *const_annex,
+ gdb_byte *readbuf, const gdb_byte *writebuf,
+ ULONGEST offset, LONGEST len)
+{
+ char *file;
+ ULONGEST pid;
+ int total_len;
+
+ if (the_target->pid_to_exec_file == NULL || writebuf != NULL)
+ return -2;
+
+ if (const_annex[0] == '\0')
+ {
+ if (current_thread == NULL)
+ return -1;
+
+ pid = pid_of (current_thread);
+ }
+ else
+ {
+ char *annex = alloca (strlen (const_annex) + 1);
+
+ strcpy (annex, const_annex);
+ annex = unpack_varlen_hex (annex, &pid);
+
+ if (annex[0] != '\0')
+ return -1;
+ }
+
+ if (pid <= 0)
+ return -1;
+
+ file = (*the_target->pid_to_exec_file) (pid);
+ if (file == NULL)
+ return -1;
+
+ total_len = strlen (file);
+
+ if (offset > total_len)
+ return -1;
+
+ if (offset + len > total_len)
+ len = total_len - offset;
+
+ memcpy (readbuf, file + offset, len);
+ return len;
+}
+
/* Handle qXfer:features:read. */
static int
if (writebuf != NULL)
return -2;
- if (annex[0] != '\0' || !target_running ())
+ if (annex[0] != '\0' || current_thread == NULL)
return -1;
total_len = 64;
if (document == NULL)
return -1;
- strcpy (document, "<library-list>\n");
+ strcpy (document, "<library-list version=\"1.0\">\n");
p = document + strlen (document);
for_each_inferior_with_data (&all_dlls, emit_dll_description, &p);
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,
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);
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)
{ "auxv", handle_qxfer_auxv },
{ "btrace", handle_qxfer_btrace },
{ "btrace-conf", handle_qxfer_btrace_conf },
+ { "exec-file", handle_qxfer_exec_file},
{ "fdpic", handle_qxfer_fdpic},
{ "features", handle_qxfer_features },
{ "libraries", handle_qxfer_libraries },
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");
if (target_supports_stopped_by_hw_breakpoint ())
hwbreak_feature = 1;
}
+ else if (strcmp (p, "fork-events+") == 0)
+ {
+ /* GDB supports and wants fork events if possible. */
+ if (target_supports_fork_events ())
+ report_fork_events = 1;
+ }
+ else if (strcmp (p, "vfork-events+") == 0)
+ {
+ /* GDB supports and wants vfork events if possible. */
+ if (target_supports_vfork_events ())
+ report_vfork_events = 1;
+ }
else
target_process_qsupported (p);
if (target_supports_multi_process ())
strcat (own_buf, ";multiprocess+");
+ if (target_supports_fork_events ())
+ strcat (own_buf, ";fork-events+");
+
+ if (target_supports_vfork_events ())
+ strcat (own_buf, ";vfork-events+");
+
if (target_supports_non_stop ())
strcat (own_buf, ";QNonStop+");
}
/* Support target-side breakpoint conditions and commands. */
- strcat (own_buf, ";ConditionalBreakpoints+");
+ if (target_supports_conditional_breakpoints ())
+ strcat (own_buf, ";ConditionalBreakpoints+");
strcat (own_buf, ";BreakpointCommands+");
if (target_supports_agent ())
if (target_supports_stopped_by_hw_breakpoint ())
strcat (own_buf, ";hwbreak+");
+ if (the_target->pid_to_exec_file != NULL)
+ strcat (own_buf, ";qXfer:exec-file:read+");
+
+ /* Reinitialize components as needed for the new connection. */
+ hostio_handle_new_gdb_connection ();
+ target_handle_new_gdb_connection ();
+
return;
}
if (i < n)
resume_info[i] = default_action;
- set_desired_thread (0);
-
resume (resume_info, n);
free (resume_info);
return;
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));
"\tgdbserver [OPTIONS] --attach COMM PID\n"
"\tgdbserver [OPTIONS] --multi COMM\n"
"\n"
- "COMM may either be a tty device (for serial debugging), or \n"
- "HOST:PORT to listen for a TCP connection.\n"
+ "COMM may either be a tty device (for serial debugging),\n"
+ "HOST:PORT to listen for a TCP connection, or '-' or 'stdio' to use \n"
+ "stdin/stdout of gdbserver.\n"
+ "PROG is the executable program. ARGS are arguments passed to inferior.\n"
+ "PID is the process ID to attach to, when --attach is specified.\n"
+ "\n"
+ "Operating modes:\n"
+ "\n"
+ " --attach Attach to running process PID.\n"
+ " --multi Start server without a specific program, and\n"
+ " only quit when explicitly commanded.\n"
+ " --once Exit after the first connection has closed.\n"
+ " --help Print this message and then exit.\n"
+ " --version Display version information and exit.\n"
+ "\n"
+ "Other options:\n"
+ "\n"
+ " --wrapper WRAPPER -- Run WRAPPER to start new programs.\n"
+ " --disable-randomization\n"
+ " Run PROG with address space randomization disabled.\n"
+ " --no-disable-randomization\n"
+ " Don't disable address space randomization when\n"
+ " starting PROG.\n"
+ "\n"
+ "Debug options:\n"
"\n"
- "Options:\n"
" --debug Enable general debugging output.\n"
" --debug-format=opt1[,opt2,...]\n"
" Specify extra content in debugging output.\n"
" none\n"
" timestamp\n"
" --remote-debug Enable remote protocol debugging output.\n"
- " --version Display version information and exit.\n"
- " --wrapper WRAPPER -- Run WRAPPER to start new programs.\n"
- " --once Exit after the first connection has "
- "closed.\n");
+ " --disable-packet=opt1[,opt2,...]\n"
+ " Disable support for RSP packets or features.\n"
+ " Options:\n"
+ " vCont, Tthread, qC, qfThreadInfo and \n"
+ " threads (disable all threading packets).\n"
+ "\n"
+ "For more information, consult the GDB manual (available as on-line \n"
+ "info or a printed manual).\n");
if (REPORT_BUGS_TO[0] && stream == stdout)
fprintf (stream, "Report bugs to \"%s\".\n", REPORT_BUGS_TO);
}
noack_mode = 0;
multi_process = 0;
+ report_fork_events = 0;
+ report_vfork_events = 0;
/* Be sure we're out of tfind mode. */
current_traceframe = -1;
cont_thread = null_ptid;
}
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
}
(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':
/* 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;
projects / binutils-gdb.git / blobdiff