#include "job-control.h"
#include "environ.h"
+#include "common/selftest.h"
+
+#define require_running_or_return(BUF) \
+ if (!target_running ()) \
+ { \
+ write_enn (BUF); \
+ return; \
+ }
+
+#define require_running_or_break(BUF) \
+ if (!target_running ()) \
+ { \
+ write_enn (BUF); \
+ break; \
+ }
+
/* The environment to pass to the inferior when creating it. */
-struct gdb_environ *our_environ = NULL;
+static gdb_environ our_environ;
/* Start the inferior using a shell. */
/* See server.h. */
-struct gdb_environ *
+gdb_environ *
get_environ ()
{
- return our_environ;
+ return &our_environ;
}
static int
return "E.Btrace already enabled.";
current_btrace_conf.format = BTRACE_FORMAT_BTS;
- thread->btrace = target_enable_btrace (thread->entry.id,
- ¤t_btrace_conf);
+ thread->btrace = target_enable_btrace (thread->id, ¤t_btrace_conf);
if (thread->btrace == NULL)
return "E.Could not enable btrace.";
return "E.Btrace already enabled.";
current_btrace_conf.format = BTRACE_FORMAT_PT;
- thread->btrace = target_enable_btrace (thread->entry.id,
- ¤t_btrace_conf);
+ thread->btrace = target_enable_btrace (thread->id, ¤t_btrace_conf);
if (thread->btrace == NULL)
return "E.Could not enable btrace.";
}
process = current_process ();
- VEC_truncate (int, process->syscalls_to_catch, 0);
+ process->syscalls_to_catch.clear ();
if (enabled)
{
while (*p != '\0')
{
p = decode_address_to_semicolon (&sysno, p);
- VEC_safe_push (int, process->syscalls_to_catch, (int) sysno);
+ process->syscalls_to_catch.push_back (sysno);
}
}
else
- VEC_safe_push (int, process->syscalls_to_catch, ANY_SYSCALL);
+ process->syscalls_to_catch.push_back (ANY_SYSCALL);
}
write_ok (own_buf);
return;
}
+ if (strcmp (own_buf, "QEnvironmentReset") == 0)
+ {
+ our_environ = gdb_environ::from_host_environ ();
+
+ write_ok (own_buf);
+ return;
+ }
+
+ if (startswith (own_buf, "QEnvironmentHexEncoded:"))
+ {
+ const char *p = own_buf + sizeof ("QEnvironmentHexEncoded:") - 1;
+ /* The final form of the environment variable. FINAL_VAR will
+ hold the 'VAR=VALUE' format. */
+ std::string final_var = hex2str (p);
+ std::string var_name, var_value;
+
+ if (remote_debug)
+ {
+ debug_printf (_("[QEnvironmentHexEncoded received '%s']\n"), p);
+ debug_printf (_("[Environment variable to be set: '%s']\n"),
+ final_var.c_str ());
+ debug_flush ();
+ }
+
+ size_t pos = final_var.find ('=');
+ if (pos == std::string::npos)
+ {
+ warning (_("Unexpected format for environment variable: '%s'"),
+ final_var.c_str ());
+ write_enn (own_buf);
+ return;
+ }
+
+ var_name = final_var.substr (0, pos);
+ var_value = final_var.substr (pos + 1, std::string::npos);
+
+ our_environ.set (var_name.c_str (), var_value.c_str ());
+
+ write_ok (own_buf);
+ return;
+ }
+
+ if (startswith (own_buf, "QEnvironmentUnset:"))
+ {
+ const char *p = own_buf + sizeof ("QEnvironmentUnset:") - 1;
+ std::string varname = hex2str (p);
+
+ if (remote_debug)
+ {
+ debug_printf (_("[QEnvironmentUnset received '%s']\n"), p);
+ debug_printf (_("[Environment variable to be unset: '%s']\n"),
+ varname.c_str ());
+ debug_flush ();
+ }
+
+ our_environ.unset (varname.c_str ());
+
+ write_ok (own_buf);
+ return;
+ }
+
if (strcmp (own_buf, "QStartNoAckMode") == 0)
{
if (remote_debug)
return;
}
+ if (startswith (own_buf, "QStartupWithShell:"))
+ {
+ const char *value = own_buf + strlen ("QStartupWithShell:");
+
+ if (strcmp (value, "1") == 0)
+ startup_with_shell = true;
+ else if (strcmp (value, "0") == 0)
+ startup_with_shell = false;
+ else
+ {
+ /* Unknown value. */
+ fprintf (stderr, "Unknown value to startup-with-shell: %s\n",
+ own_buf);
+ write_enn (own_buf);
+ return;
+ }
+
+ if (remote_debug)
+ debug_printf (_("[Inferior will %s started with shell]"),
+ startup_with_shell ? "be" : "not be");
+
+ write_ok (own_buf);
+ return;
+ }
+
+ if (startswith (own_buf, "QSetWorkingDir:"))
+ {
+ const char *p = own_buf + strlen ("QSetWorkingDir:");
+
+ if (*p != '\0')
+ {
+ std::string path = hex2str (p);
+
+ set_inferior_cwd (path.c_str ());
+
+ if (remote_debug)
+ debug_printf (_("[Set the inferior's current directory to %s]\n"),
+ path.c_str ());
+ }
+ else
+ {
+ /* An empty argument means that we should clear out any
+ previously set cwd for the inferior. */
+ set_inferior_cwd (NULL);
+
+ if (remote_debug)
+ debug_printf (_("\
+[Unset the inferior's current directory; will use gdbserver's cwd]\n"));
+ }
+ write_ok (own_buf);
+
+ return;
+ }
+
/* Otherwise we didn't know what packet it was. Say we didn't
understand it. */
own_buf[0] = 0;
This variable is set up from the auto-generated
init_registers_... routine for the current target. */
- if (desc->xmltarget != NULL && strcmp (annex, "target.xml") == 0)
+ if (strcmp (annex, "target.xml") == 0)
{
- if (*desc->xmltarget == '@')
- return desc->xmltarget + 1;
+ const char *ret = tdesc_get_features_xml ((target_desc*) desc);
+
+ if (*ret == '@')
+ return ret + 1;
else
- annex = desc->xmltarget;
+ annex = ret;
}
#ifdef USE_XML
res = prepare_to_access_memory ();
if (res == 0)
{
- if (set_desired_thread (1))
+ if (set_desired_thread ())
res = read_inferior_memory (memaddr, myaddr, len);
else
res = 1;
ret = prepare_to_access_memory ();
if (ret == 0)
{
- if (set_desired_thread (1))
+ if (set_desired_thread ())
ret = write_inferior_memory (memaddr, myaddr, len);
else
ret = EIO;
free (pattern);
}
-#define require_running(BUF) \
- if (!target_running ()) \
- { \
- write_enn (BUF); \
- return; \
+/* Handle the "D" packet. */
+
+static void
+handle_detach (char *own_buf)
+{
+ require_running_or_return (own_buf);
+
+ int pid;
+
+ if (multi_process)
+ {
+ /* skip 'D;' */
+ pid = strtol (&own_buf[2], NULL, 16);
}
+ else
+ pid = ptid_get_pid (current_ptid);
+
+ if ((tracing && disconnected_tracing) || any_persistent_commands ())
+ {
+ struct process_info *process = find_process_pid (pid);
+
+ if (process == NULL)
+ {
+ write_enn (own_buf);
+ return;
+ }
+
+ if (tracing && disconnected_tracing)
+ fprintf (stderr,
+ "Disconnected tracing in effect, "
+ "leaving gdbserver attached to the process\n");
+
+ if (any_persistent_commands ())
+ fprintf (stderr,
+ "Persistent commands are present, "
+ "leaving gdbserver attached to the process\n");
+
+ /* Make sure we're in non-stop/async mode, so we we can both
+ wait for an async socket accept, and handle async target
+ events simultaneously. There's also no point either in
+ having the target stop all threads, when we're going to
+ pass signals down without informing GDB. */
+ if (!non_stop)
+ {
+ if (debug_threads)
+ debug_printf ("Forcing non-stop mode\n");
+
+ non_stop = 1;
+ start_non_stop (1);
+ }
+
+ process->gdb_detached = 1;
+
+ /* Detaching implicitly resumes all threads. */
+ target_continue_no_signal (minus_one_ptid);
+
+ write_ok (own_buf);
+ return;
+ }
+
+ fprintf (stderr, "Detaching from process %d\n", pid);
+ stop_tracing ();
+ if (detach_inferior (pid) != 0)
+ write_enn (own_buf);
+ else
+ {
+ discard_queued_stop_replies (pid_to_ptid (pid));
+ write_ok (own_buf);
+
+ if (extended_protocol || target_running ())
+ {
+ /* There is still at least one inferior remaining or
+ we are in extended mode, so don't terminate gdbserver,
+ and instead treat this like a normal program exit. */
+ last_status.kind = TARGET_WAITKIND_EXITED;
+ last_status.value.integer = 0;
+ last_ptid = pid_to_ptid (pid);
+
+ current_thread = NULL;
+ }
+ else
+ {
+ putpkt (own_buf);
+ remote_close ();
+
+ /* If we are attached, then we can exit. Otherwise, we
+ need to hang around doing nothing, until the child is
+ gone. */
+ join_inferior (pid);
+ exit (0);
+ }
+ }
+}
/* Parse options to --debug-format= and "monitor set debug-format".
ARG is the text after "--debug-format=" or "monitor set debug-format".
/* Handle qXfer:exec-file:read. */
static int
-handle_qxfer_exec_file (const char *const_annex,
+handle_qxfer_exec_file (const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, LONGEST len)
{
if (the_target->pid_to_exec_file == NULL || writebuf != NULL)
return -2;
- if (const_annex[0] == '\0')
+ if (annex[0] == '\0')
{
if (current_thread == NULL)
return -1;
}
else
{
- char *annex = (char *) alloca (strlen (const_annex) + 1);
-
- strcpy (annex, const_annex);
annex = unpack_varlen_hex (annex, &pid);
-
if (annex[0] != '\0')
return -1;
}
return len;
}
-/* Worker routine for handle_qxfer_libraries.
- Add to the length pointed to by ARG a conservative estimate of the
- length needed to transmit the file name of INF. */
-
-static void
-accumulate_file_name_length (struct inferior_list_entry *inf, void *arg)
-{
- struct dll_info *dll = (struct dll_info *) inf;
- unsigned int *total_len = (unsigned int *) arg;
-
- /* Over-estimate the necessary memory. Assume that every character
- in the library name must be escaped. */
- *total_len += 128 + 6 * strlen (dll->name);
-}
-
-/* Worker routine for handle_qxfer_libraries.
- Emit the XML to describe the library in INF. */
-
-static void
-emit_dll_description (struct inferior_list_entry *inf, void *arg)
-{
- struct dll_info *dll = (struct dll_info *) inf;
- char **p_ptr = (char **) arg;
- char *p = *p_ptr;
- char *name;
-
- strcpy (p, " <library name=\"");
- p = p + strlen (p);
- name = xml_escape_text (dll->name);
- strcpy (p, name);
- free (name);
- p = p + strlen (p);
- strcpy (p, "\"><segment address=\"");
- p = p + strlen (p);
- sprintf (p, "0x%lx", (long) dll->base_addr);
- p = p + strlen (p);
- strcpy (p, "\"/></library>\n");
- p = p + strlen (p);
-
- *p_ptr = p;
-}
-
/* Handle qXfer:libraries:read. */
static int
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, LONGEST len)
{
- unsigned int total_len;
- char *document, *p;
-
if (writebuf != NULL)
return -2;
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 = (char *) malloc (total_len);
- if (document == NULL)
- return -1;
+ std::string document = "<library-list version=\"1.0\">\n";
- strcpy (document, "<library-list version=\"1.0\">\n");
- p = document + strlen (document);
+ for (const dll_info &dll : all_dlls)
+ document += string_printf
+ (" <library name=\"%s\"><segment address=\"0x%lx\"/></library>\n",
+ dll.name.c_str (), (long) dll.base_addr);
- for_each_inferior_with_data (&all_dlls, emit_dll_description, &p);
+ document += "</library-list>\n";
- strcpy (p, "</library-list>\n");
-
- total_len = strlen (document);
+ if (offset > document.length ())
+ return -1;
- if (offset > total_len)
- {
- free (document);
- return -1;
- }
+ if (offset + len > document.length ())
+ len = document.length () - offset;
- if (offset + len > total_len)
- len = total_len - offset;
+ memcpy (readbuf, &document[offset], len);
- memcpy (readbuf, document + offset, len);
- free (document);
return len;
}
Emit the XML to describe the thread of INF. */
static void
-handle_qxfer_threads_worker (struct inferior_list_entry *inf, void *arg)
+handle_qxfer_threads_worker (thread_info *thread, void *arg)
{
- struct thread_info *thread = (struct thread_info *) inf;
struct buffer *buffer = (struct buffer *) arg;
- ptid_t ptid = thread_to_gdb_id (thread);
+ ptid_t ptid = ptid_of (thread);
char ptid_s[100];
int core = target_core_of_thread (ptid);
char core_s[21];
const char *name = target_thread_name (ptid);
+ int handle_len;
+ gdb_byte *handle;
+ bool handle_status = target_thread_handle (ptid, &handle, &handle_len);
write_ptid (ptid_s, ptid);
if (name != NULL)
buffer_xml_printf (buffer, " name=\"%s\"", name);
+ if (handle_status)
+ {
+ char *handle_s = (char *) alloca (handle_len * 2 + 1);
+ bin2hex (handle, handle_s, handle_len);
+ buffer_xml_printf (buffer, " handle=\"%s\"", handle_s);
+ }
+
buffer_xml_printf (buffer, "/>\n");
}
static void
handle_query (char *own_buf, int packet_len, int *new_packet_len_p)
{
- static struct inferior_list_entry *thread_ptr;
+ static std::list<thread_info *>::const_iterator thread_iter;
/* Reply the current thread id. */
if (strcmp ("qC", own_buf) == 0 && !disable_packet_qC)
{
- ptid_t gdb_id;
- require_running (own_buf);
+ ptid_t ptid;
+ require_running_or_return (own_buf);
- if (!ptid_equal (general_thread, null_ptid)
- && !ptid_equal (general_thread, minus_one_ptid))
- gdb_id = general_thread;
+ if (general_thread != null_ptid && general_thread != minus_one_ptid)
+ ptid = general_thread;
else
{
- thread_ptr = get_first_inferior (&all_threads);
- gdb_id = thread_to_gdb_id ((struct thread_info *)thread_ptr);
+ thread_iter = all_threads.begin ();
+ ptid = (*thread_iter)->id;
}
sprintf (own_buf, "QC");
own_buf += 2;
- write_ptid (own_buf, gdb_id);
+ write_ptid (own_buf, ptid);
return;
}
{
if (strcmp ("qfThreadInfo", own_buf) == 0)
{
- ptid_t gdb_id;
-
- require_running (own_buf);
- thread_ptr = get_first_inferior (&all_threads);
+ require_running_or_return (own_buf);
+ thread_iter = all_threads.begin ();
*own_buf++ = 'm';
- gdb_id = thread_to_gdb_id ((struct thread_info *)thread_ptr);
- write_ptid (own_buf, gdb_id);
- thread_ptr = thread_ptr->next;
+ ptid_t ptid = (*thread_iter)->id;
+ write_ptid (own_buf, ptid);
+ thread_iter++;
return;
}
if (strcmp ("qsThreadInfo", own_buf) == 0)
{
- ptid_t gdb_id;
-
- require_running (own_buf);
- if (thread_ptr != NULL)
+ require_running_or_return (own_buf);
+ if (thread_iter != all_threads.end ())
{
*own_buf++ = 'm';
- gdb_id = thread_to_gdb_id ((struct thread_info *)thread_ptr);
- write_ptid (own_buf, gdb_id);
- thread_ptr = thread_ptr->next;
+ ptid_t ptid = (*thread_iter)->id;
+ write_ptid (own_buf, ptid);
+ thread_iter++;
return;
}
else
{
CORE_ADDR text, data;
- require_running (own_buf);
+ require_running_or_return (own_buf);
if (the_target->read_offsets (&text, &data))
sprintf (own_buf, "Text=%lX;Data=%lX;Bss=%lX",
(long)text, (long)data, (long)data);
}
sprintf (own_buf,
- "PacketSize=%x;QPassSignals+;QProgramSignals+",
+ "PacketSize=%x;QPassSignals+;QProgramSignals+;"
+ "QStartupWithShell+;QEnvironmentHexEncoded+;"
+ "QEnvironmentReset+;QEnvironmentUnset+;"
+ "QSetWorkingDir+",
PBUFSIZ - 1);
if (target_supports_catch_syscall ())
int i, err;
ptid_t ptid = null_ptid;
- require_running (own_buf);
+ require_running_or_return (own_buf);
for (i = 0; i < 3; i++)
{
if (the_target->get_tib_address != NULL
&& startswith (own_buf, "qGetTIBAddr:"))
{
- char *annex;
+ const char *annex;
int n;
CORE_ADDR tlb;
ptid_t ptid = read_ptid (own_buf + 12, &annex);
if (startswith (own_buf, "qSearch:memory:"))
{
- require_running (own_buf);
+ require_running_or_return (own_buf);
handle_search_memory (own_buf, packet_len);
return;
}
if (own_buf[sizeof ("qAttached") - 1])
{
int pid = strtoul (own_buf + sizeof ("qAttached:") - 1, NULL, 16);
- process = (struct process_info *)
- find_inferior_id (&all_processes, pid_to_ptid (pid));
+ process = find_process_pid (pid);
}
else
{
- require_running (own_buf);
+ require_running_or_return (own_buf);
process = current_process ();
}
if (startswith (own_buf, "qCRC:"))
{
/* CRC check (compare-section). */
- char *comma;
+ const char *comma;
ULONGEST base;
int len;
unsigned long long crc;
- require_running (own_buf);
+ require_running_or_return (own_buf);
comma = unpack_varlen_hex (own_buf + 5, &base);
if (*comma++ != ',')
{
typedef int (visit_actioned_threads_callback_ftype)
(const struct thread_resume *, struct thread_info *);
-/* Struct to pass data to visit_actioned_threads. */
-
-struct visit_actioned_threads_data
-{
- const struct thread_resume *actions;
- size_t num_actions;
- visit_actioned_threads_callback_ftype *callback;
-};
-
/* Call CALLBACK for any thread to which ACTIONS applies to. Returns
true if CALLBACK returns true. Returns false if no matching thread
is found or CALLBACK results false.
- Note: This function is itself a callback for find_inferior. */
+ Note: This function is itself a callback for find_thread. */
-static int
-visit_actioned_threads (struct inferior_list_entry *entry, void *datap)
+static bool
+visit_actioned_threads (thread_info *thread,
+ const struct thread_resume *actions,
+ size_t num_actions,
+ visit_actioned_threads_callback_ftype *callback)
{
- 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;
- size_t i;
-
- for (i = 0; i < num_actions; i++)
+ for (size_t i = 0; i < num_actions; i++)
{
const struct thread_resume *action = &actions[i];
if (ptid_equal (action->thread, minus_one_ptid)
- || ptid_equal (action->thread, entry->id)
+ || ptid_equal (action->thread, thread->id)
|| ((ptid_get_pid (action->thread)
- == ptid_get_pid (entry->id))
+ == thread->id.pid ())
&& ptid_get_lwp (action->thread) == -1))
{
- struct thread_info *thread = (struct thread_info *) entry;
-
if ((*callback) (action, thread))
- return 1;
+ return true;
}
}
- return 0;
+ return false;
}
/* Callback for visit_actioned_threads. If the thread has a pending
thread->status_pending_p = 0;
last_status = thread->last_status;
- last_ptid = thread->entry.id;
+ last_ptid = thread->id;
prepare_resume_reply (own_buf, last_ptid, &last_status);
return 1;
}
static void
handle_v_cont (char *own_buf)
{
- char *p, *q;
+ const char *p;
int n = 0, i = 0;
struct thread_resume *resume_info;
struct thread_resume default_action { null_ptid };
if (p[0] == 'S' || p[0] == 'C')
{
- int sig;
- sig = strtol (p + 1, &q, 16);
+ char *q;
+ int sig = strtol (p + 1, &q, 16);
if (p == q)
goto err;
p = q;
}
else if (p[0] == ':')
{
+ const char *q;
ptid_t ptid = read_ptid (p + 1, &q);
if (p == q)
one with a pending status to report. If so, skip actually
resuming/stopping and report the pending event
immediately. */
- struct visit_actioned_threads_data data;
- data.actions = actions;
- data.num_actions = num_actions;
- data.callback = handle_pending_status;
- if (find_inferior (&all_threads, visit_actioned_threads, &data) != NULL)
+ thread_info *thread_with_status = find_thread ([&] (thread_info *thread)
+ {
+ return visit_actioned_threads (thread, actions, num_actions,
+ handle_pending_status);
+ });
+
+ if (thread_with_status != NULL)
return;
enable_async_io ();
/* Callback for for_each_inferior. Make a new stop reply for each
stopped thread. */
-static int
-queue_stop_reply_callback (struct inferior_list_entry *entry, void *arg)
+static void
+queue_stop_reply_callback (thread_info *thread)
{
- struct thread_info *thread = (struct thread_info *) entry;
-
/* For now, assume targets that don't have this callback also don't
manage the thread's last_status field. */
if (the_target->thread_stopped == NULL)
{
struct vstop_notif *new_notif = XNEW (struct vstop_notif);
- new_notif->ptid = entry->id;
+ new_notif->ptid = thread->id;
new_notif->status = thread->last_status;
/* Pass the last stop reply back to GDB, but don't notify
yet. */
{
if (debug_threads)
{
- char *status_string
+ std::string status_string
= target_waitstatus_to_string (&thread->last_status);
debug_printf ("Reporting thread %s as already stopped with %s\n",
- target_pid_to_str (entry->id),
- status_string);
-
- xfree (status_string);
+ target_pid_to_str (thread->id),
+ status_string.c_str ());
}
gdb_assert (thread->last_status.kind != TARGET_WAITKIND_IGNORE);
/* Pass the last stop reply back to GDB, but don't notify
yet. */
- queue_stop_reply (entry->id, &thread->last_status);
+ queue_stop_reply (thread->id, &thread->last_status);
}
}
-
- return 0;
}
/* Set this inferior threads's state as "want-stopped". We won't
it. */
static void
-gdb_wants_thread_stopped (struct inferior_list_entry *entry)
+gdb_wants_thread_stopped (thread_info *thread)
{
- struct thread_info *thread = (struct thread_info *) entry;
-
thread->last_resume_kind = resume_stop;
if (thread->last_status.kind == TARGET_WAITKIND_IGNORE)
for_each_inferior (&all_threads, gdb_wants_thread_stopped);
}
-/* Clear the gdb_detached flag of every process. */
-
-static void
-gdb_reattached_process (struct inferior_list_entry *entry)
-{
- struct process_info *process = (struct process_info *) entry;
-
- process->gdb_detached = 0;
-}
-
/* Callback for for_each_inferior. Clear the thread's pending status
flag. */
static void
-clear_pending_status_callback (struct inferior_list_entry *entry)
+clear_pending_status_callback (thread_info *thread)
{
- struct thread_info *thread = (struct thread_info *) entry;
-
thread->status_pending_p = 0;
}
interesting event, mark it as having a pending event. */
static void
-set_pending_status_callback (struct inferior_list_entry *entry)
+set_pending_status_callback (thread_info *thread)
{
- struct thread_info *thread = (struct thread_info *) entry;
-
if (thread->last_status.kind != TARGET_WAITKIND_STOPPED
|| (thread->last_status.value.sig != GDB_SIGNAL_0
/* A breakpoint, watchpoint or finished step from a previous
thread->status_pending_p = 1;
}
-/* Callback for find_inferior. Return true if ENTRY (a thread) has a
- pending status to report to GDB. */
-
-static int
-find_status_pending_thread_callback (struct inferior_list_entry *entry, void *data)
-{
- struct thread_info *thread = (struct thread_info *) entry;
-
- return thread->status_pending_p;
-}
-
/* Status handler for the '?' packet. */
static void
handle_status (char *own_buf)
{
/* GDB is connected, don't forward events to the target anymore. */
- for_each_inferior (&all_processes, gdb_reattached_process);
+ for_each_process ([] (process_info *process) {
+ process->gdb_detached = 0;
+ });
/* In non-stop mode, we must send a stop reply for each stopped
thread. In all-stop mode, just send one for the first stopped
if (non_stop)
{
- find_inferior (&all_threads, queue_stop_reply_callback, NULL);
+ for_each_thread (queue_stop_reply_callback);
/* The first is sent immediatly. OK is sent if there is no
stopped thread, which is the same handling of the vStopped
}
else
{
- struct inferior_list_entry *thread = NULL;
+ thread_info *thread = NULL;
pause_all (0);
stabilize_threads ();
if (last_status.kind != TARGET_WAITKIND_IGNORE
&& last_status.kind != TARGET_WAITKIND_EXITED
&& last_status.kind != TARGET_WAITKIND_SIGNALLED)
- thread = find_inferior_id (&all_threads, last_ptid);
+ thread = find_thread_ptid (last_ptid);
/* If the last event thread is not found for some reason, look
for some other thread that might have an event to report. */
if (thread == NULL)
- thread = find_inferior (&all_threads,
- find_status_pending_thread_callback, NULL);
+ thread = find_thread ([] (thread_info *thread)
+ {
+ return thread->status_pending_p;
+ });
/* If we're still out of luck, simply pick the first thread in
the thread list. */
if (thread == NULL)
- thread = get_first_inferior (&all_threads);
+ thread = get_first_thread ();
if (thread != NULL)
{
/* GDB assumes the current thread is the thread we're
reporting the status for. */
general_thread = thread->id;
- set_desired_thread (1);
+ set_desired_thread ();
gdb_assert (tp->last_status.kind != TARGET_WAITKIND_IGNORE);
- prepare_resume_reply (own_buf, tp->entry.id, &tp->last_status);
+ prepare_resume_reply (own_buf, tp->id, &tp->last_status);
}
else
strcpy (own_buf, "W00");
" --no-disable-randomization\n"
" Don't disable address space randomization when\n"
" starting PROG.\n"
+ " --startup-with-shell\n"
+ " Start PROG using a shell. I.e., execs a shell that\n"
+ " then execs PROG. (default)\n"
+ " --no-startup-with-shell\n"
+ " Exec PROG directly instead of using a shell.\n"
+ " Disables argument globbing and variable substitution\n"
+ " on UNIX-like systems.\n"
"\n"
"Debug options:\n"
"\n"
" threads \tAll of the above\n");
}
-
-#undef require_running
-#define require_running(BUF) \
- if (!target_running ()) \
- { \
- write_enn (BUF); \
- break; \
- }
-
-static int
-first_thread_of (struct inferior_list_entry *entry, void *args)
-{
- int pid = * (int *) args;
-
- if (ptid_get_pid (entry->id) == pid)
- return 1;
-
- return 0;
-}
-
static void
-kill_inferior_callback (struct inferior_list_entry *entry)
+kill_inferior_callback (process_info *process)
{
- struct process_info *process = (struct process_info *) entry;
- int pid = ptid_get_pid (process->entry.id);
+ int pid = process->pid;
kill_inferior (pid);
discard_queued_stop_replies (pid_to_ptid (pid));
}
-/* Callback for for_each_inferior to detach or kill the inferior,
- depending on whether we attached to it or not.
- We inform the user whether we're detaching or killing the process
- as this is only called when gdbserver is about to exit. */
-
-static void
-detach_or_kill_inferior_callback (struct inferior_list_entry *entry)
-{
- struct process_info *process = (struct process_info *) entry;
- int pid = ptid_get_pid (process->entry.id);
-
- if (process->attached)
- detach_inferior (pid);
- else
- kill_inferior (pid);
-
- discard_queued_stop_replies (pid_to_ptid (pid));
-}
-
-/* for_each_inferior callback for detach_or_kill_for_exit to print
- the pids of started inferiors. */
-
-static void
-print_started_pid (struct inferior_list_entry *entry)
-{
- struct process_info *process = (struct process_info *) entry;
-
- if (! process->attached)
- {
- int pid = ptid_get_pid (process->entry.id);
- fprintf (stderr, " %d", pid);
- }
-}
-
-/* for_each_inferior callback for detach_or_kill_for_exit to print
- the pids of attached inferiors. */
-
-static void
-print_attached_pid (struct inferior_list_entry *entry)
-{
- struct process_info *process = (struct process_info *) entry;
-
- if (process->attached)
- {
- int pid = ptid_get_pid (process->entry.id);
- fprintf (stderr, " %d", pid);
- }
-}
-
/* Call this when exiting gdbserver with possible inferiors that need
to be killed or detached from. */
if (have_started_inferiors_p ())
{
fprintf (stderr, "Killing process(es):");
- for_each_inferior (&all_processes, print_started_pid);
+
+ for_each_process ([] (process_info *process) {
+ if (!process->attached)
+ fprintf (stderr, " %d", process->pid);
+ });
+
fprintf (stderr, "\n");
}
if (have_attached_inferiors_p ())
{
fprintf (stderr, "Detaching process(es):");
- for_each_inferior (&all_processes, print_attached_pid);
+
+ for_each_process ([] (process_info *process) {
+ if (process->attached)
+ fprintf (stderr, " %d", process->pid);
+ });
+
fprintf (stderr, "\n");
}
/* Now we can kill or detach the inferiors. */
+ for_each_process ([] (process_info *process) {
+ int pid = process->pid;
- for_each_inferior (&all_processes, detach_or_kill_inferior_callback);
+ if (process->attached)
+ detach_inferior (pid);
+ else
+ kill_inferior (pid);
+
+ discard_queued_stop_replies (pid_to_ptid (pid));
+ });
}
/* Value that will be passed to exit(3) when gdbserver exits. */
volatile int multi_mode = 0;
volatile int attach = 0;
int was_running;
+ bool selftest = false;
+ const char *selftest_filter = NULL;
while (*next_arg != NULL && **next_arg == '-')
{
disable_randomization = 1;
else if (strcmp (*next_arg, "--no-disable-randomization") == 0)
disable_randomization = 0;
+ else if (strcmp (*next_arg, "--startup-with-shell") == 0)
+ startup_with_shell = true;
+ else if (strcmp (*next_arg, "--no-startup-with-shell") == 0)
+ startup_with_shell = false;
else if (strcmp (*next_arg, "--once") == 0)
run_once = 1;
+ else if (strcmp (*next_arg, "--selftest") == 0)
+ selftest = true;
+ else if (startswith (*next_arg, "--selftest="))
+ {
+ selftest = true;
+ selftest_filter = *next_arg + strlen ("--selftest=");
+ }
else
{
fprintf (stderr, "Unknown argument: %s\n", *next_arg);
port = *next_arg;
next_arg++;
}
- if (port == NULL || (!attach && !multi_mode && *next_arg == NULL))
+ if ((port == NULL || (!attach && !multi_mode && *next_arg == NULL))
+ && !selftest)
{
gdbserver_usage (stderr);
exit (1);
starting the inferior. Inferiors created in this scenario have
stdin,stdout redirected. So do this here before we call
start_inferior. */
- remote_prepare (port);
+ if (port != NULL)
+ remote_prepare (port);
bad_attach = 0;
pid = 0;
}
/* Gather information about the environment. */
- our_environ = make_environ ();
- init_environ (our_environ);
+ our_environ = gdb_environ::from_host_environ ();
initialize_async_io ();
initialize_low ();
own_buf = (char *) xmalloc (PBUFSIZ + 1);
mem_buf = (unsigned char *) xmalloc (PBUFSIZ);
+ if (selftest)
+ {
+ selftests::run_tests (selftest_filter);
+ throw_quit ("Quit");
+ }
+
if (pid == 0 && *next_arg != NULL)
{
int i, n;
after the last processed option. */
static void
-process_point_options (struct gdb_breakpoint *bp, char **packet)
+process_point_options (struct gdb_breakpoint *bp, const char **packet)
{
- char *dataptr = *packet;
+ const char *dataptr = *packet;
int persist;
/* Check if data has the correct format. */
static int
process_serial_event (void)
{
- char ch;
- int i = 0;
int signal;
unsigned int len;
int res;
CORE_ADDR mem_addr;
- int pid;
unsigned char sig;
int packet_len;
int new_packet_len = -1;
}
response_needed = 1;
- i = 0;
- ch = own_buf[i++];
+ char ch = own_buf[0];
switch (ch)
{
case 'q':
handle_general_set (own_buf);
break;
case 'D':
- require_running (own_buf);
-
- if (multi_process)
- {
- i++; /* skip ';' */
- pid = strtol (&own_buf[i], NULL, 16);
- }
- else
- pid = ptid_get_pid (current_ptid);
-
- if ((tracing && disconnected_tracing) || any_persistent_commands ())
- {
- struct process_info *process = find_process_pid (pid);
-
- if (process == NULL)
- {
- write_enn (own_buf);
- break;
- }
-
- if (tracing && disconnected_tracing)
- fprintf (stderr,
- "Disconnected tracing in effect, "
- "leaving gdbserver attached to the process\n");
-
- if (any_persistent_commands ())
- fprintf (stderr,
- "Persistent commands are present, "
- "leaving gdbserver attached to the process\n");
-
- /* Make sure we're in non-stop/async mode, so we we can both
- wait for an async socket accept, and handle async target
- events simultaneously. There's also no point either in
- having the target stop all threads, when we're going to
- pass signals down without informing GDB. */
- if (!non_stop)
- {
- if (debug_threads)
- debug_printf ("Forcing non-stop mode\n");
-
- non_stop = 1;
- start_non_stop (1);
- }
-
- process->gdb_detached = 1;
-
- /* Detaching implicitly resumes all threads. */
- target_continue_no_signal (minus_one_ptid);
-
- write_ok (own_buf);
- break; /* from switch/case */
- }
-
- fprintf (stderr, "Detaching from process %d\n", pid);
- stop_tracing ();
- if (detach_inferior (pid) != 0)
- write_enn (own_buf);
- else
- {
- discard_queued_stop_replies (pid_to_ptid (pid));
- write_ok (own_buf);
-
- if (extended_protocol || target_running ())
- {
- /* There is still at least one inferior remaining or
- we are in extended mode, so don't terminate gdbserver,
- and instead treat this like a normal program exit. */
- last_status.kind = TARGET_WAITKIND_EXITED;
- last_status.value.integer = 0;
- last_ptid = pid_to_ptid (pid);
-
- current_thread = NULL;
- }
- else
- {
- putpkt (own_buf);
- remote_close ();
-
- /* If we are attached, then we can exit. Otherwise, we
- need to hang around doing nothing, until the child is
- gone. */
- join_inferior (pid);
- exit (0);
- }
- }
+ handle_detach (own_buf);
break;
case '!':
extended_protocol = 1;
case 'H':
if (own_buf[1] == 'c' || own_buf[1] == 'g' || own_buf[1] == 's')
{
- ptid_t gdb_id, thread_id;
- int pid;
-
- require_running (own_buf);
+ require_running_or_break (own_buf);
- gdb_id = read_ptid (&own_buf[2], NULL);
+ ptid_t thread_id = read_ptid (&own_buf[2], NULL);
- pid = ptid_get_pid (gdb_id);
-
- if (ptid_equal (gdb_id, null_ptid)
- || ptid_equal (gdb_id, minus_one_ptid))
+ if (thread_id == null_ptid || thread_id == minus_one_ptid)
thread_id = null_ptid;
- else if (pid != 0
- && ptid_equal (pid_to_ptid (pid),
- gdb_id))
+ else if (thread_id.is_pid ())
{
- struct thread_info *thread =
- (struct thread_info *) find_inferior (&all_threads,
- first_thread_of,
- &pid);
- if (!thread)
+ /* The ptid represents a pid. */
+ thread_info *thread = find_any_thread_of_pid (thread_id.pid ());
+
+ if (thread == NULL)
{
write_enn (own_buf);
break;
}
- thread_id = thread->entry.id;
+ thread_id = thread->id;
}
else
{
- thread_id = gdb_id_to_thread_id (gdb_id);
- if (ptid_equal (thread_id, null_ptid))
+ /* The ptid represents a lwp/tid. */
+ if (find_thread_ptid (thread_id) == NULL)
{
write_enn (own_buf);
break;
/* GDB is telling us to choose any thread. Check if
the currently selected thread is still valid. If
it is not, select the first available. */
- struct thread_info *thread =
- (struct thread_info *) find_inferior_id (&all_threads,
- general_thread);
+ thread_info *thread = find_thread_ptid (general_thread);
if (thread == NULL)
thread = get_first_thread ();
- thread_id = thread->entry.id;
+ thread_id = thread->id;
}
general_thread = thread_id;
- set_desired_thread (1);
+ set_desired_thread ();
gdb_assert (current_thread != NULL);
}
else if (own_buf[1] == 'c')
}
break;
case 'g':
- require_running (own_buf);
+ require_running_or_break (own_buf);
if (current_traceframe >= 0)
{
struct regcache *regcache
{
struct regcache *regcache;
- if (!set_desired_thread (1))
+ if (!set_desired_thread ())
write_enn (own_buf);
else
{
}
break;
case 'G':
- require_running (own_buf);
+ require_running_or_break (own_buf);
if (current_traceframe >= 0)
write_enn (own_buf);
else
{
struct regcache *regcache;
- if (!set_desired_thread (1))
+ if (!set_desired_thread ())
write_enn (own_buf);
else
{
}
break;
case 'm':
- require_running (own_buf);
+ require_running_or_break (own_buf);
decode_m_packet (&own_buf[1], &mem_addr, &len);
res = gdb_read_memory (mem_addr, mem_buf, len);
if (res < 0)
bin2hex (mem_buf, own_buf, res);
break;
case 'M':
- require_running (own_buf);
+ require_running_or_break (own_buf);
decode_M_packet (&own_buf[1], &mem_addr, &len, &mem_buf);
if (gdb_write_memory (mem_addr, mem_buf, len) == 0)
write_ok (own_buf);
write_enn (own_buf);
break;
case 'X':
- require_running (own_buf);
+ require_running_or_break (own_buf);
if (decode_X_packet (&own_buf[1], packet_len - 1,
&mem_addr, &len, &mem_buf) < 0
|| gdb_write_memory (mem_addr, mem_buf, len) != 0)
write_ok (own_buf);
break;
case 'C':
- require_running (own_buf);
+ require_running_or_break (own_buf);
hex2bin (own_buf + 1, &sig, 1);
if (gdb_signal_to_host_p ((enum gdb_signal) sig))
signal = gdb_signal_to_host ((enum gdb_signal) sig);
myresume (own_buf, 0, signal);
break;
case 'S':
- require_running (own_buf);
+ require_running_or_break (own_buf);
hex2bin (own_buf + 1, &sig, 1);
if (gdb_signal_to_host_p ((enum gdb_signal) sig))
signal = gdb_signal_to_host ((enum gdb_signal) sig);
myresume (own_buf, 1, signal);
break;
case 'c':
- require_running (own_buf);
+ require_running_or_break (own_buf);
signal = 0;
myresume (own_buf, 0, signal);
break;
case 's':
- require_running (own_buf);
+ require_running_or_break (own_buf);
signal = 0;
myresume (own_buf, 1, signal);
break;
char type = own_buf[1];
int res;
const int insert = ch == 'Z';
- char *p = &own_buf[3];
+ const char *p = &own_buf[3];
p = unpack_varlen_hex (p, &addr);
kind = strtol (p + 1, &dataptr, 16);
is telling us to drop that list and use this one
instead. */
clear_breakpoint_conditions_and_commands (bp);
- process_point_options (bp, &dataptr);
+ const char *options = dataptr;
+ process_point_options (bp, &options);
}
}
else
return 0;
fprintf (stderr, "Killing all inferiors\n");
- for_each_inferior (&all_processes, kill_inferior_callback);
+
+ for_each_process (kill_inferior_callback);
/* When using the extended protocol, we wait with no program
running. The traditional protocol will exit instead. */
case 'T':
{
- ptid_t gdb_id, thread_id;
-
- require_running (own_buf);
+ require_running_or_break (own_buf);
- gdb_id = read_ptid (&own_buf[1], NULL);
- thread_id = gdb_id_to_thread_id (gdb_id);
- if (ptid_equal (thread_id, null_ptid))
+ ptid_t thread_id = read_ptid (&own_buf[1], NULL);
+ if (find_thread_ptid (thread_id) == NULL)
{
write_enn (own_buf);
break;
if (extended_protocol)
{
if (target_running ())
- for_each_inferior (&all_processes,
- kill_inferior_callback);
+ for_each_process (kill_inferior_callback);
+
fprintf (stderr, "GDBserver restarting\n");
/* Wait till we are at 1st instruction in prog. */
/* Be sure to not change the selected thread behind GDB's back.
Important in the non-stop mode asynchronous protocol. */
- set_desired_thread (1);
+ set_desired_thread ();
return 0;
}
/* Be sure to not change the selected thread behind GDB's back.
Important in the non-stop mode asynchronous protocol. */
- set_desired_thread (1);
+ set_desired_thread ();
return 0;
}
+
+#if GDB_SELF_TEST
+namespace selftests
+{
+
+void
+reset ()
+{}
+
+} // namespace selftests
+#endif /* GDB_SELF_TEST */
projects / deliverable / binutils-gdb.git / blobdiff