/* Remote target communications for serial-line targets in custom GDB protocol
- Copyright (C) 1988-2017 Free Software Foundation, Inc.
+ Copyright (C) 1988-2018 Free Software Foundation, Inc.
This file is part of GDB.
struct readahead_cache readahead_cache;
};
-/* Private data that we'll store in (struct thread_info)->private. */
-struct private_thread_info
+/* Private data that we'll store in (struct thread_info)->priv. */
+struct remote_thread_info : public private_thread_info
{
- char *extra;
- char *name;
- int core;
+ std::string extra;
+ std::string name;
+ int core = -1;
/* Thread handle, perhaps a pthread_t or thread_t value, stored as a
sequence of bytes. */
- gdb::byte_vector *thread_handle;
+ gdb::byte_vector thread_handle;
/* Whether the target stopped for a breakpoint/watchpoint. */
- enum target_stop_reason stop_reason;
+ enum target_stop_reason stop_reason = TARGET_STOPPED_BY_NO_REASON;
/* This is set to the data address of the access causing the target
to stop for a watchpoint. */
- CORE_ADDR watch_data_address;
+ CORE_ADDR watch_data_address = 0;
/* Fields used by the vCont action coalescing implemented in
remote_resume / remote_commit_resume. remote_resume stores each
/* True if the last target_resume call for this thread was a step
request, false if a continue request. */
- int last_resume_step;
+ int last_resume_step = 0;
/* The signal specified in the last target_resume call for this
thread. */
- enum gdb_signal last_resume_sig;
+ gdb_signal last_resume_sig = GDB_SIGNAL_0;
/* Whether this thread was already vCont-resumed on the remote
side. */
- int vcont_resumed;
+ int vcont_resumed = 0;
};
-static void
-free_private_thread_info (struct private_thread_info *info)
-{
- xfree (info->extra);
- xfree (info->name);
- delete info->thread_handle;
- xfree (info);
-}
-
/* This data could be associated with a target, but we do not always
have access to the current target when we need it, so for now it is
static. This will be fine for as long as only one target is in use
/* The "set/show remote exec-file" set command hook. */
static void
-set_remote_exec_file (char *ignored, int from_tty,
+set_remote_exec_file (const char *ignored, int from_tty,
struct cmd_list_element *c)
{
gdb_assert (remote_exec_file_var != NULL);
remote_register_number_and_offset (struct gdbarch *gdbarch, int regnum,
int *pnum, int *poffset)
{
- struct packet_reg *regs;
- struct cleanup *old_chain;
-
gdb_assert (regnum < gdbarch_num_regs (gdbarch));
- regs = XCNEWVEC (struct packet_reg, gdbarch_num_regs (gdbarch));
- old_chain = make_cleanup (xfree, regs);
+ std::vector<packet_reg> regs (gdbarch_num_regs (gdbarch));
- map_regcache_remote_table (gdbarch, regs);
+ map_regcache_remote_table (gdbarch, regs.data ());
*pnum = regs[regnum].pnum;
*poffset = regs[regnum].offset;
- do_cleanups (old_chain);
-
return *pnum != -1;
}
static int remote_break;
static void
-set_remotebreak (char *args, int from_tty, struct cmd_list_element *c)
+set_remotebreak (const char *args, int from_tty, struct cmd_list_element *c)
{
if (remote_break)
interrupt_sequence_mode = interrupt_sequence_break;
static unsigned int remote_address_size;
-/* Temporary to track who currently owns the terminal. See
- remote_terminal_* for more details. */
-
-static int remote_async_terminal_ours_p;
-
\f
/* User configurable variables for the number of characters in a
memory read/write packet. MIN (rsa->remote_packet_size,
static enum auto_boolean remote_Z_packet_detect;
static void
-set_remote_protocol_Z_packet_cmd (char *args, int from_tty,
+set_remote_protocol_Z_packet_cmd (const char *args, int from_tty,
struct cmd_list_element *c)
{
int i;
return inf;
}
-static struct private_thread_info *
- get_private_info_thread (struct thread_info *info);
+static remote_thread_info *get_remote_thread_info (thread_info *thread);
/* Add thread PTID to GDB's thread list. Tag it as executing/running
according to RUNNING. */
else
thread = add_thread (ptid);
- get_private_info_thread (thread)->vcont_resumed = executing;
+ get_remote_thread_info (thread)->vcont_resumed = executing;
set_executing (ptid, executing);
set_running (ptid, running);
}
/* Return THREAD's private thread data, creating it if necessary. */
-static struct private_thread_info *
-get_private_info_thread (struct thread_info *thread)
+static remote_thread_info *
+get_remote_thread_info (thread_info *thread)
{
gdb_assert (thread != NULL);
if (thread->priv == NULL)
- {
- struct private_thread_info *priv = XNEW (struct private_thread_info);
-
- thread->private_dtor = free_private_thread_info;
- thread->priv = priv;
-
- priv->core = -1;
- priv->extra = NULL;
- priv->name = NULL;
- priv->name = NULL;
- priv->last_resume_step = 0;
- priv->last_resume_sig = GDB_SIGNAL_0;
- priv->vcont_resumed = 0;
- priv->thread_handle = nullptr;
- }
+ thread->priv.reset (new remote_thread_info);
- return thread->priv;
+ return static_cast<remote_thread_info *> (thread->priv.get ());
}
/* Return PTID's private thread data, creating it if necessary. */
-static struct private_thread_info *
-get_private_info_ptid (ptid_t ptid)
+static remote_thread_info *
+get_remote_thread_info (ptid_t ptid)
{
struct thread_info *info = find_thread_ptid (ptid);
- return get_private_info_thread (info);
+ return get_remote_thread_info (info);
}
/* Call this function as a result of
static int
remote_set_syscall_catchpoint (struct target_ops *self,
- int pid, int needed, int any_count,
- int table_size, int *table)
+ int pid, bool needed, int any_count,
+ gdb::array_view<const int> syscall_counts)
{
- char *catch_packet;
+ const char *catch_packet;
enum packet_result result;
int n_sysno = 0;
return 1;
}
- if (needed && !any_count)
+ if (needed && any_count == 0)
{
- int i;
-
- /* Count how many syscalls are to be caught (table[sysno] != 0). */
- for (i = 0; i < table_size; i++)
+ /* Count how many syscalls are to be caught. */
+ for (size_t i = 0; i < syscall_counts.size (); i++)
{
- if (table[i] != 0)
+ if (syscall_counts[i] != 0)
n_sysno++;
}
}
pid, needed, any_count, n_sysno);
}
+ std::string built_packet;
if (needed)
{
/* Prepare a packet with the sysno list, assuming max 8+1
characters for a sysno. If the resulting packet size is too
big, fallback on the non-selective packet. */
const int maxpktsz = strlen ("QCatchSyscalls:1") + n_sysno * 9 + 1;
-
- catch_packet = (char *) xmalloc (maxpktsz);
- strcpy (catch_packet, "QCatchSyscalls:1");
- if (!any_count)
+ built_packet.reserve (maxpktsz);
+ built_packet = "QCatchSyscalls:1";
+ if (any_count == 0)
{
- int i;
- char *p;
-
- p = catch_packet;
- p += strlen (p);
-
- /* Add in catch_packet each syscall to be caught (table[i] != 0). */
- for (i = 0; i < table_size; i++)
+ /* Add in each syscall to be caught. */
+ for (size_t i = 0; i < syscall_counts.size (); i++)
{
- if (table[i] != 0)
- p += xsnprintf (p, catch_packet + maxpktsz - p, ";%x", i);
+ if (syscall_counts[i] != 0)
+ string_appendf (built_packet, ";%zx", i);
}
}
- if (strlen (catch_packet) > get_remote_packet_size ())
+ if (built_packet.size () > get_remote_packet_size ())
{
/* catch_packet too big. Fallback to less efficient
non selective mode, with GDB doing the filtering. */
- catch_packet[sizeof ("QCatchSyscalls:1") - 1] = 0;
+ catch_packet = "QCatchSyscalls:1";
}
+ else
+ catch_packet = built_packet.c_str ();
}
else
- catch_packet = xstrdup ("QCatchSyscalls:0");
+ catch_packet = "QCatchSyscalls:0";
- {
- struct cleanup *old_chain = make_cleanup (xfree, catch_packet);
- struct remote_state *rs = get_remote_state ();
+ struct remote_state *rs = get_remote_state ();
- putpkt (catch_packet);
- getpkt (&rs->buf, &rs->buf_size, 0);
- result = packet_ok (rs->buf, &remote_protocol_packets[PACKET_QCatchSyscalls]);
- do_cleanups (old_chain);
- if (result == PACKET_OK)
- return 0;
- else
- return -1;
- }
+ putpkt (catch_packet);
+ getpkt (&rs->buf, &rs->buf_size, 0);
+ result = packet_ok (rs->buf, &remote_protocol_packets[PACKET_QCatchSyscalls]);
+ if (result == PACKET_OK)
+ return 0;
+ else
+ return -1;
}
/* If 'QProgramSignals' is supported, tell the remote stub what
remote_thread_name (struct target_ops *ops, struct thread_info *info)
{
if (info->priv != NULL)
- return info->priv->name;
+ {
+ const std::string &name = get_remote_thread_info (info)->name;
+ return !name.empty () ? name.c_str () : NULL;
+ }
return NULL;
}
/* A thread found on the remote target. */
-typedef struct thread_item
+struct thread_item
{
+ explicit thread_item (ptid_t ptid_)
+ : ptid (ptid_)
+ {}
+
+ thread_item (thread_item &&other) = default;
+ thread_item &operator= (thread_item &&other) = default;
+
+ DISABLE_COPY_AND_ASSIGN (thread_item);
+
/* The thread's PTID. */
ptid_t ptid;
- /* The thread's extra info. May be NULL. */
- char *extra;
+ /* The thread's extra info. */
+ std::string extra;
- /* The thread's name. May be NULL. */
- char *name;
+ /* The thread's name. */
+ std::string name;
/* The core the thread was running on. -1 if not known. */
- int core;
+ int core = -1;
/* The thread handle associated with the thread. */
- gdb::byte_vector *thread_handle;
-
-} thread_item_t;
-DEF_VEC_O(thread_item_t);
+ gdb::byte_vector thread_handle;
+};
/* Context passed around to the various methods listing remote
threads. As new threads are found, they're added to the ITEMS
struct threads_listing_context
{
- /* The threads found on the remote target. */
- VEC (thread_item_t) *items;
-};
+ /* Return true if this object contains an entry for a thread with ptid
+ PTID. */
-/* Discard the contents of the constructed thread listing context. */
+ bool contains_thread (ptid_t ptid) const
+ {
+ auto match_ptid = [&] (const thread_item &item)
+ {
+ return item.ptid == ptid;
+ };
-static void
-clear_threads_listing_context (void *p)
-{
- struct threads_listing_context *context
- = (struct threads_listing_context *) p;
- int i;
- struct thread_item *item;
+ auto it = std::find_if (this->items.begin (),
+ this->items.end (),
+ match_ptid);
- for (i = 0; VEC_iterate (thread_item_t, context->items, i, item); ++i)
- {
- xfree (item->extra);
- xfree (item->name);
- delete item->thread_handle;
- }
+ return it != this->items.end ();
+ }
- VEC_free (thread_item_t, context->items);
-}
+ /* Remove the thread with ptid PTID. */
-/* Remove the thread specified as the related_pid field of WS
- from the CONTEXT list. */
+ void remove_thread (ptid_t ptid)
+ {
+ auto match_ptid = [&] (const thread_item &item)
+ {
+ return item.ptid == ptid;
+ };
-static void
-threads_listing_context_remove (struct target_waitstatus *ws,
- struct threads_listing_context *context)
-{
- struct thread_item *item;
- int i;
- ptid_t child_ptid = ws->value.related_pid;
+ auto it = std::remove_if (this->items.begin (),
+ this->items.end (),
+ match_ptid);
- for (i = 0; VEC_iterate (thread_item_t, context->items, i, item); ++i)
- {
- if (ptid_equal (item->ptid, child_ptid))
- {
- VEC_ordered_remove (thread_item_t, context->items, i);
- break;
- }
- }
-}
+ if (it != this->items.end ())
+ this->items.erase (it);
+ }
+
+ /* The threads found on the remote target. */
+ std::vector<thread_item> items;
+};
static int
remote_newthread_step (threadref *ref, void *data)
{
struct threads_listing_context *context
= (struct threads_listing_context *) data;
- struct thread_item item;
- int pid = ptid_get_pid (inferior_ptid);
-
- item.ptid = ptid_build (pid, threadref_to_int (ref), 0);
- item.core = -1;
- item.name = NULL;
- item.extra = NULL;
- item.thread_handle = nullptr;
+ int pid = inferior_ptid.pid ();
+ int lwp = threadref_to_int (ref);
+ ptid_t ptid (pid, lwp);
- VEC_safe_push (thread_item_t, context->items, &item);
+ context->items.emplace_back (ptid);
return 1; /* continue iterator */
}
static void
start_thread (struct gdb_xml_parser *parser,
const struct gdb_xml_element *element,
- void *user_data, VEC(gdb_xml_value_s) *attributes)
+ void *user_data,
+ std::vector<gdb_xml_value> &attributes)
{
struct threads_listing_context *data
= (struct threads_listing_context *) user_data;
-
- struct thread_item item;
- char *id;
struct gdb_xml_value *attr;
- id = (char *) xml_find_attribute (attributes, "id")->value;
- item.ptid = read_ptid (id, NULL);
+ char *id = (char *) xml_find_attribute (attributes, "id")->value.get ();
+ ptid_t ptid = read_ptid (id, NULL);
+
+ data->items.emplace_back (ptid);
+ thread_item &item = data->items.back ();
attr = xml_find_attribute (attributes, "core");
if (attr != NULL)
- item.core = *(ULONGEST *) attr->value;
- else
- item.core = -1;
+ item.core = *(ULONGEST *) attr->value.get ();
attr = xml_find_attribute (attributes, "name");
- item.name = attr != NULL ? xstrdup ((const char *) attr->value) : NULL;
+ if (attr != NULL)
+ item.name = (const char *) attr->value.get ();
attr = xml_find_attribute (attributes, "handle");
if (attr != NULL)
- {
- item.thread_handle = new gdb::byte_vector
- (strlen ((const char *) attr->value) / 2);
- hex2bin ((const char *) attr->value, item.thread_handle->data (),
- item.thread_handle->size ());
- }
- else
- item.thread_handle = nullptr;
-
- item.extra = 0;
-
- VEC_safe_push (thread_item_t, data->items, &item);
+ item.thread_handle = hex2bin ((const char *) attr->value.get ());
}
static void
struct threads_listing_context *data
= (struct threads_listing_context *) user_data;
- if (body_text && *body_text)
- VEC_last (thread_item_t, data->items)->extra = xstrdup (body_text);
+ if (body_text != NULL && *body_text != '\0')
+ data->items.back ().extra = body_text;
}
const struct gdb_xml_attribute thread_attributes[] = {
#if defined(HAVE_LIBEXPAT)
if (packet_support (PACKET_qXfer_threads) == PACKET_ENABLE)
{
- char *xml = target_read_stralloc (ops, TARGET_OBJECT_THREADS, NULL);
- struct cleanup *back_to = make_cleanup (xfree, xml);
+ gdb::unique_xmalloc_ptr<char> xml
+ = target_read_stralloc (ops, TARGET_OBJECT_THREADS, NULL);
if (xml != NULL && *xml != '\0')
{
gdb_xml_parse_quick (_("threads"), "threads.dtd",
- threads_elements, xml, context);
+ threads_elements, xml.get (), context);
}
- do_cleanups (back_to);
return 1;
}
#endif
{
do
{
- struct thread_item item;
-
- item.ptid = read_ptid (bufp, &bufp);
- item.core = -1;
- item.name = NULL;
- item.extra = NULL;
- item.thread_handle = nullptr;
-
- VEC_safe_push (thread_item_t, context->items, &item);
+ ptid_t ptid = read_ptid (bufp, &bufp);
+ context->items.emplace_back (ptid);
}
while (*bufp++ == ','); /* comma-separated list */
putpkt ("qsThreadInfo");
remote_update_thread_list (struct target_ops *ops)
{
struct threads_listing_context context;
- struct cleanup *old_chain;
int got_list = 0;
- context.items = NULL;
- old_chain = make_cleanup (clear_threads_listing_context, &context);
-
/* We have a few different mechanisms to fetch the thread list. Try
them all, starting with the most preferred one first, falling
back to older methods. */
|| remote_get_threads_with_qthreadinfo (ops, &context)
|| remote_get_threads_with_ql (ops, &context))
{
- int i;
- struct thread_item *item;
struct thread_info *tp, *tmp;
got_list = 1;
- if (VEC_empty (thread_item_t, context.items)
+ if (context.items.empty ()
&& remote_thread_always_alive (ops, inferior_ptid))
{
/* Some targets don't really support threads, but still
listing packets, instead of replying "packet not
supported". Exit early so we don't delete the main
thread. */
- do_cleanups (old_chain);
return;
}
target. */
ALL_THREADS_SAFE (tp, tmp)
{
- for (i = 0;
- VEC_iterate (thread_item_t, context.items, i, item);
- ++i)
- {
- if (ptid_equal (item->ptid, tp->ptid))
- break;
- }
-
- if (i == VEC_length (thread_item_t, context.items))
+ if (!context.contains_thread (tp->ptid))
{
/* Not found. */
delete_thread (tp->ptid);
remove_new_fork_children (&context);
/* And now add threads we don't know about yet to our list. */
- for (i = 0;
- VEC_iterate (thread_item_t, context.items, i, item);
- ++i)
+ for (thread_item &item : context.items)
{
- if (!ptid_equal (item->ptid, null_ptid))
+ if (item.ptid != null_ptid)
{
- struct private_thread_info *info;
/* In non-stop mode, we assume new found threads are
executing until proven otherwise with a stop reply.
In all-stop, we can only get here if all threads are
stopped. */
int executing = target_is_non_stop_p () ? 1 : 0;
- remote_notice_new_inferior (item->ptid, executing);
+ remote_notice_new_inferior (item.ptid, executing);
- info = get_private_info_ptid (item->ptid);
- info->core = item->core;
- info->extra = item->extra;
- item->extra = NULL;
- info->name = item->name;
- item->name = NULL;
- info->thread_handle = item->thread_handle;
- item->thread_handle = nullptr;
+ remote_thread_info *info = get_remote_thread_info (item.ptid);
+ info->core = item.core;
+ info->extra = std::move (item.extra);
+ info->name = std::move (item.name);
+ info->thread_handle = std::move (item.thread_handle);
}
}
}
no-op. See remote_thread_alive. */
prune_threads ();
}
-
- do_cleanups (old_chain);
}
/*
{
struct thread_info *info = find_thread_ptid (tp->ptid);
- if (info && info->priv)
- return info->priv->extra;
+ if (info != NULL && info->priv != NULL)
+ {
+ const std::string &extra = get_remote_thread_info (info)->extra;
+ return !extra.empty () ? extra.c_str () : NULL;
+ }
else
return NULL;
}
set_executing (event_ptid, 0);
set_running (event_ptid, 0);
- thread->priv->vcont_resumed = 0;
+ get_remote_thread_info (thread)->vcont_resumed = 0;
}
/* "Notice" the new inferiors before anything related to
static void
remote_check_symbols (void)
{
- struct remote_state *rs = get_remote_state ();
char *msg, *reply, *tmp;
int end;
long reply_size;
/* Keep this one last to work around a gdbserver <= 7.10 bug in
the qSupported:xmlRegisters=i386 handling. */
- if (remote_support_xml != NULL)
+ if (remote_support_xml != NULL
+ && packet_support (PACKET_qXfer_features) != PACKET_DISABLE)
q = remote_query_supported_append (q, remote_support_xml);
q = reconcat (q, "qSupported:", q, (char *) NULL);
readahead_cache_invalidate ();
- /* Start out by owning the terminal. */
- remote_async_terminal_ours_p = 1;
-
if (target_async_permitted)
{
/* FIXME: cagney/1999-09-23: During the initial connection it is
one. */
static void
-remote_detach_1 (const char *args, int from_tty)
+remote_detach_1 (int from_tty)
{
int pid = ptid_get_pid (inferior_ptid);
struct remote_state *rs = get_remote_state ();
struct thread_info *tp = find_thread_ptid (inferior_ptid);
int is_fork_parent;
- if (args)
- error (_("Argument given to \"detach\" when remotely debugging."));
-
if (!target_has_execution)
error (_("No process to detach from."));
}
static void
-remote_detach (struct target_ops *ops, const char *args, int from_tty)
+remote_detach (struct target_ops *ops, int from_tty)
{
- remote_detach_1 (args, from_tty);
+ remote_detach_1 (from_tty);
}
static void
-extended_remote_detach (struct target_ops *ops, const char *args, int from_tty)
+extended_remote_detach (struct target_ops *ops, int from_tty)
{
- remote_detach_1 (args, from_tty);
+ remote_detach_1 (from_tty);
}
/* Target follow-fork function for remote targets. On entry, and
{
if (thread->priv != NULL)
{
- thread->priv->stop_reason = TARGET_STOPPED_BY_NO_REASON;
- thread->priv->watch_data_address = 0;
+ remote_thread_info *priv = get_remote_thread_info (thread);
+
+ priv->stop_reason = TARGET_STOPPED_BY_NO_REASON;
+ priv->watch_data_address = 0;
}
}
to do vCont action coalescing. */
if (target_is_non_stop_p () && execution_direction != EXEC_REVERSE)
{
- struct private_thread_info *remote_thr;
+ remote_thread_info *remote_thr;
if (ptid_equal (minus_one_ptid, ptid) || ptid_is_pid (ptid))
- remote_thr = get_private_info_ptid (inferior_ptid);
+ remote_thr = get_remote_thread_info (inferior_ptid);
else
- remote_thr = get_private_info_ptid (ptid);
+ remote_thr = get_remote_thread_info (ptid);
+
remote_thr->last_resume_step = step;
remote_thr->last_resume_sig = siggnal;
return;
/* Private per-inferior info for target remote processes. */
-struct private_inferior
+struct remote_inferior : public private_inferior
{
/* Whether we can send a wildcard vCont for this process. */
- int may_wildcard_vcont;
+ bool may_wildcard_vcont = true;
};
+/* Get the remote private inferior data associated to INF. */
+
+static remote_inferior *
+get_remote_inferior (inferior *inf)
+{
+ if (inf->priv == NULL)
+ inf->priv.reset (new remote_inferior);
+
+ return static_cast<remote_inferior *> (inf->priv.get ());
+}
+
/* Structure used to track the construction of a vCont packet in the
outgoing packet buffer. This is used to send multiple vCont
packets if we have more actions than would fit a single packet. */
static void
remote_commit_resume (struct target_ops *ops)
{
- struct remote_state *rs = get_remote_state ();
struct inferior *inf;
struct thread_info *tp;
int any_process_wildcard;
/* And assume every process is individually wildcard-able too. */
ALL_NON_EXITED_INFERIORS (inf)
{
- if (inf->priv == NULL)
- inf->priv = XNEW (struct private_inferior);
- inf->priv->may_wildcard_vcont = 1;
+ remote_inferior *priv = get_remote_inferior (inf);
+
+ priv->may_wildcard_vcont = true;
}
/* Check for any pending events (not reported or processed yet) and
can't wildcard that process. */
if (!tp->executing)
{
- tp->inf->priv->may_wildcard_vcont = 0;
+ get_remote_inferior (tp->inf)->may_wildcard_vcont = false;
/* And if we can't wildcard a process, we can't wildcard
everything either. */
/* Threads first. */
ALL_NON_EXITED_THREADS (tp)
{
- struct private_thread_info *remote_thr = tp->priv;
+ remote_thread_info *remote_thr = get_remote_thread_info (tp);
if (!tp->executing || remote_thr->vcont_resumed)
continue;
if (!remote_thr->last_resume_step
&& remote_thr->last_resume_sig == GDB_SIGNAL_0
- && tp->inf->priv->may_wildcard_vcont)
+ && get_remote_inferior (tp->inf)->may_wildcard_vcont)
{
/* We'll send a wildcard resume instead. */
remote_thr->vcont_resumed = 1;
ALL_NON_EXITED_INFERIORS (inf)
{
- if (inf->priv->may_wildcard_vcont)
+ if (get_remote_inferior (inf)->may_wildcard_vcont)
{
any_process_wildcard = 1;
break;
{
ALL_NON_EXITED_INFERIORS (inf)
{
- if (inf->priv->may_wildcard_vcont)
+ if (get_remote_inferior (inf)->may_wildcard_vcont)
{
vcont_builder_push_action (&vcont_builder,
pid_to_ptid (inf->pid),
static void
remote_interrupt (struct target_ops *self, ptid_t ptid)
{
- struct remote_state *rs = get_remote_state ();
-
if (remote_debug)
fprintf_unfiltered (gdb_stdlog, "remote_interrupt called\n");
static void
remote_terminal_inferior (struct target_ops *self)
{
- /* FIXME: cagney/1999-09-27: Make calls to target_terminal::*()
- idempotent. The event-loop GDB talking to an asynchronous target
- with a synchronous command calls this function from both
- event-top.c and infrun.c/infcmd.c. Once GDB stops trying to
- transfer the terminal to the target when it shouldn't this guard
- can go away. */
- if (!remote_async_terminal_ours_p)
- return;
- remote_async_terminal_ours_p = 0;
/* NOTE: At this point we could also register our selves as the
recipient of all input. Any characters typed could then be
passed on down to the target. */
static void
remote_terminal_ours (struct target_ops *self)
{
- /* See FIXME in remote_terminal_inferior. */
- if (remote_async_terminal_ours_p)
- return;
- remote_async_terminal_ours_p = 1;
}
static void
if (event->ws.kind == TARGET_WAITKIND_FORKED
|| event->ws.kind == TARGET_WAITKIND_VFORKED
|| event->ws.kind == TARGET_WAITKIND_THREAD_EXITED)
- threads_listing_context_remove (&event->ws, context);
+ context->remove_thread (event->ws.value.related_pid);
return 1;
}
struct target_waitstatus *ws = thread_pending_fork_status (thread);
if (is_pending_fork_parent (ws, pid, thread->ptid))
- {
- threads_listing_context_remove (ws, context);
- }
+ context->remove_thread (ws->value.related_pid);
}
/* Check for any pending fork events (not reported or processed yet)
we'd resume this process too. */
*may_global_wildcard_vcont = 0;
if (inf != NULL)
- inf->priv->may_wildcard_vcont = 0;
+ get_remote_inferior (inf)->may_wildcard_vcont = false;
return 1;
}
event->ptid = read_ptid (thr + strlen (";thread:"),
NULL);
else
- event->ptid = magic_null_ptid;
+ {
+ /* Either the current thread hasn't changed,
+ or the inferior is not multi-threaded.
+ The event must be for the thread we last
+ set as (or learned as being) current. */
+ event->ptid = event->rs->general_thread;
+ }
}
if (rsa == NULL)
&& status->kind != TARGET_WAITKIND_SIGNALLED
&& status->kind != TARGET_WAITKIND_NO_RESUMED)
{
- struct private_thread_info *remote_thr;
-
/* Expedited registers. */
if (stop_reply->regcache)
{
}
remote_notice_new_inferior (ptid, 0);
- remote_thr = get_private_info_ptid (ptid);
+ remote_thread_info *remote_thr = get_remote_thread_info (ptid);
remote_thr->core = stop_reply->core;
remote_thr->stop_reason = stop_reply->stop_reason;
remote_thr->watch_data_address = stop_reply->watch_data_address;
static int
fetch_register_using_p (struct regcache *regcache, struct packet_reg *reg)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
struct remote_state *rs = get_remote_state ();
char *buf, *p;
gdb_byte *regp = (gdb_byte *) alloca (register_size (gdbarch, reg->regnum));
return 0;
case PACKET_ERROR:
error (_("Could not fetch register \"%s\"; remote failure reply '%s'"),
- gdbarch_register_name (get_regcache_arch (regcache),
+ gdbarch_register_name (regcache->arch (),
reg->regnum),
buf);
}
static void
process_g_packet (struct regcache *regcache)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
struct remote_state *rs = get_remote_state ();
remote_arch_state *rsa = get_remote_arch_state (gdbarch);
int i, buf_len;
remote_fetch_registers (struct target_ops *ops,
struct regcache *regcache, int regnum)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
remote_arch_state *rsa = get_remote_arch_state (gdbarch);
int i;
case PACKET_DISABLE:
case PACKET_SUPPORT_UNKNOWN:
/* Make sure all the necessary registers are cached. */
- for (i = 0; i < gdbarch_num_regs (get_regcache_arch (regcache)); i++)
+ for (i = 0; i < gdbarch_num_regs (regcache->arch ()); i++)
if (rsa->regs[i].in_g_packet)
regcache_raw_update (regcache, rsa->regs[i].regnum);
break;
store_register_using_P (const struct regcache *regcache,
struct packet_reg *reg)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
struct remote_state *rs = get_remote_state ();
/* Try storing a single register. */
char *buf = rs->buf;
regs = (gdb_byte *) alloca (rsa->sizeof_g_packet);
memset (regs, 0, rsa->sizeof_g_packet);
- for (i = 0; i < gdbarch_num_regs (get_regcache_arch (regcache)); i++)
+ for (i = 0; i < gdbarch_num_regs (regcache->arch ()); i++)
{
struct packet_reg *r = &rsa->regs[i];
/* Return UNITS_WRITTEN, not TODO_UNITS, in case escape chars caused us to
send fewer units than we'd planned. */
*xfered_len_units = (ULONGEST) units_written;
- return TARGET_XFER_OK;
+ return (*xfered_len_units != 0) ? TARGET_XFER_OK : TARGET_XFER_EOF;
}
/* Write memory data directly to the remote machine.
decoded_bytes = hex2bin (p, myaddr, todo_units * unit_size);
/* Return what we have. Let higher layers handle partial reads. */
*xfered_len_units = (ULONGEST) (decoded_bytes / unit_size);
- return TARGET_XFER_OK;
+ return (*xfered_len_units != 0) ? TARGET_XFER_OK : TARGET_XFER_EOF;
}
/* Using the set of read-only target sections of remote, read live
/* No use trying further, we know some memory starting
at MEMADDR isn't available. */
*xfered_len = len;
- return TARGET_XFER_UNAVAILABLE;
+ return (*xfered_len != 0) ?
+ TARGET_XFER_UNAVAILABLE : TARGET_XFER_EOF;
}
}
struct remote_state *rs = get_remote_state ();
int i;
unsigned char csum = 0;
- char *buf2 = (char *) xmalloc (cnt + 6);
- struct cleanup *old_chain = make_cleanup (xfree, buf2);
+ gdb::def_vector<char> data (cnt + 6);
+ char *buf2 = data.data ();
int ch;
int tcount = 0;
case '+':
if (remote_debug)
fprintf_unfiltered (gdb_stdlog, "Ack\n");
- do_cleanups (old_chain);
return 1;
case '-':
if (remote_debug)
case SERIAL_TIMEOUT:
tcount++;
if (tcount > 3)
- {
- do_cleanups (old_chain);
- return 0;
- }
+ return 0;
break; /* Retransmit buffer. */
case '$':
{
#endif
}
- do_cleanups (old_chain);
return 0;
}
CORE_ADDR addr = bp_tgt->reqstd_address;
struct remote_state *rs;
char *p, *endbuf;
- int bpsize;
/* Make sure the remote is pointing at the right process, if
necessary. */
struct thread_info *thread = inferior_thread ();
return (thread->priv != NULL
- && thread->priv->stop_reason == TARGET_STOPPED_BY_SW_BREAKPOINT);
+ && (get_remote_thread_info (thread)->stop_reason
+ == TARGET_STOPPED_BY_SW_BREAKPOINT));
}
/* The to_supports_stopped_by_sw_breakpoint method of target
struct thread_info *thread = inferior_thread ();
return (thread->priv != NULL
- && thread->priv->stop_reason == TARGET_STOPPED_BY_HW_BREAKPOINT);
+ && (get_remote_thread_info (thread)->stop_reason
+ == TARGET_STOPPED_BY_HW_BREAKPOINT));
}
/* The to_supports_stopped_by_hw_breakpoint method of target
struct thread_info *thread = inferior_thread ();
return (thread->priv != NULL
- && thread->priv->stop_reason == TARGET_STOPPED_BY_WATCHPOINT);
+ && (get_remote_thread_info (thread)->stop_reason
+ == TARGET_STOPPED_BY_WATCHPOINT));
}
static int
struct thread_info *thread = inferior_thread ();
if (thread->priv != NULL
- && thread->priv->stop_reason == TARGET_STOPPED_BY_WATCHPOINT)
+ && (get_remote_thread_info (thread)->stop_reason
+ == TARGET_STOPPED_BY_WATCHPOINT))
{
- *addr_p = thread->priv->watch_data_address;
+ *addr_p = get_remote_thread_info (thread)->watch_data_address;
return 1;
}
compare_sections_command (const char *args, int from_tty)
{
asection *s;
- struct cleanup *old_chain;
- gdb_byte *sectdata;
const char *sectname;
bfd_size_type size;
bfd_vma lma;
matched = 1; /* Do this section. */
lma = s->lma;
- sectdata = (gdb_byte *) xmalloc (size);
- old_chain = make_cleanup (xfree, sectdata);
- bfd_get_section_contents (exec_bfd, s, sectdata, 0, size);
+ gdb::byte_vector sectdata (size);
+ bfd_get_section_contents (exec_bfd, s, sectdata.data (), 0, size);
- res = target_verify_memory (sectdata, lma, size);
+ res = target_verify_memory (sectdata.data (), lma, size);
if (res == -1)
error (_("target memory fault, section %s, range %s -- %s"), sectname,
printf_filtered ("MIS-MATCHED!\n");
mismatched++;
}
-
- do_cleanups (old_chain);
}
if (mismatched > 0)
warning (_("One or more sections of the target image does not match\n\
struct remote_state *rs = get_remote_state ();
int max_size = get_memory_write_packet_size ();
- if (packet->support == PACKET_DISABLE)
+ if (packet_config_support (packet) == PACKET_DISABLE)
return TARGET_XFER_E_IO;
/* Insert header. */
unpack_varlen_hex (rs->buf, &n);
*xfered_len = n;
- return TARGET_XFER_OK;
+ return (*xfered_len != 0) ? TARGET_XFER_OK : TARGET_XFER_EOF;
}
/* Read OBJECT_NAME/ANNEX from the remote target using a qXfer packet.
struct remote_state *rs = get_remote_state ();
LONGEST i, n, packet_len;
- if (packet->support == PACKET_DISABLE)
+ if (packet_config_support (packet) == PACKET_DISABLE)
return TARGET_XFER_E_IO;
/* Check whether we've cached an end-of-object packet that matches
strcpy ((char *) readbuf, rs->buf);
*xfered_len = strlen ((char *) readbuf);
- return TARGET_XFER_OK;
+ return (*xfered_len != 0) ? TARGET_XFER_OK : TARGET_XFER_EOF;
}
/* Implementation of to_get_memory_xfer_limit. */
int found;
ULONGEST found_addr;
- /* Don't go to the target if we don't have to.
- This is done before checking packet->support to avoid the possibility that
- a success for this edge case means the facility works in general. */
+ /* Don't go to the target if we don't have to. This is done before
+ checking packet_config_support to avoid the possibility that a
+ success for this edge case means the facility works in
+ general. */
if (pattern_len > search_space_len)
return 0;
if (pattern_len == 0)
{
/* The request may not have worked because the command is not
supported. If so, fall back to the simple way. */
- if (packet->support == PACKET_DISABLE)
+ if (packet_config_support (packet) == PACKET_DISABLE)
{
return simple_search_memory (ops, start_addr, search_space_len,
pattern, pattern_len, found_addrp);
}
}
-static VEC(mem_region_s) *
+static std::vector<mem_region>
remote_memory_map (struct target_ops *ops)
{
- VEC(mem_region_s) *result = NULL;
- char *text = target_read_stralloc (¤t_target,
- TARGET_OBJECT_MEMORY_MAP, NULL);
+ std::vector<mem_region> result;
+ gdb::unique_xmalloc_ptr<char> text
+ = target_read_stralloc (¤t_target, TARGET_OBJECT_MEMORY_MAP, NULL);
if (text)
- {
- struct cleanup *back_to = make_cleanup (xfree, text);
-
- result = parse_memory_map (text);
- do_cleanups (back_to);
- }
+ result = parse_memory_map (text.get ());
return result;
}
#define SAMPLE_THREAD 0x05060708 /* Truncated 64 bit threadid. */
static void
-threadset_test_cmd (char *cmd, int tty)
+threadset_test_cmd (const char *cmd, int tty)
{
int sample_thread = SAMPLE_THREAD;
static void
-threadalive_test (char *cmd, int tty)
+threadalive_test (const char *cmd, int tty)
{
int sample_thread = SAMPLE_THREAD;
int pid = ptid_get_pid (inferior_ptid);
}
static void
-threadlist_test_cmd (char *cmd, int tty)
+threadlist_test_cmd (const char *cmd, int tty)
{
int startflag = 1;
threadref nextthread;
}
static void
-threadinfo_test_cmd (char *cmd, int tty)
+threadinfo_test_cmd (const char *cmd, int tty)
{
int athread = SAMPLE_THREAD;
threadref thread;
}
static void
-threadlist_update_test_cmd (char *cmd, int tty)
+threadlist_update_test_cmd (const char *cmd, int tty)
{
printf_filtered ("Remote Threadlist update test\n");
remote_threadlist_iterator (thread_display_step, 0, CRAZY_MAX_THREADS);
error (_("Target does not support this command."));
}
-static void free_actions_list (char **actions_list);
-static void free_actions_list_cleanup_wrapper (void *);
-static void
-free_actions_list_cleanup_wrapper (void *al)
-{
- free_actions_list ((char **) al);
-}
-
-static void
-free_actions_list (char **actions_list)
-{
- int ndx;
-
- if (actions_list == 0)
- return;
-
- for (ndx = 0; actions_list[ndx]; ndx++)
- xfree (actions_list[ndx]);
-
- xfree (actions_list);
-}
-
/* Recursive routine to walk through command list including loops, and
download packets for each command. */
CORE_ADDR tpaddr;
char addrbuf[40];
char buf[BUF_SIZE];
- char **tdp_actions;
- char **stepping_actions;
- int ndx;
- struct cleanup *old_chain = NULL;
+ 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 ();
encode_actions_rsp (loc, &tdp_actions, &stepping_actions);
- old_chain = make_cleanup (free_actions_list_cleanup_wrapper,
- tdp_actions);
- (void) make_cleanup (free_actions_list_cleanup_wrapper,
- stepping_actions);
tpaddr = loc->address;
sprintf_vma (addrbuf, tpaddr);
xsnprintf (buf + strlen (buf), BUF_SIZE - strlen (buf), ":X%x,",
aexpr->len);
pkt = buf + strlen (buf);
- for (ndx = 0; ndx < aexpr->len; ++ndx)
+ for (int ndx = 0; ndx < aexpr->len; ++ndx)
pkt = pack_hex_byte (pkt, aexpr->buf[ndx]);
*pkt = '\0';
}
error (_("Target does not support tracepoints."));
/* do_single_steps (t); */
- if (tdp_actions)
- {
- for (ndx = 0; tdp_actions[ndx]; ndx++)
- {
- QUIT; /* Allow user to bail out with ^C. */
- xsnprintf (buf, BUF_SIZE, "QTDP:-%x:%s:%s%c",
- b->number, addrbuf, /* address */
- tdp_actions[ndx],
- ((tdp_actions[ndx + 1] || stepping_actions)
- ? '-' : 0));
- putpkt (buf);
- remote_get_noisy_reply ();
- if (strcmp (rs->buf, "OK"))
- error (_("Error on target while setting tracepoints."));
- }
- }
- if (stepping_actions)
+ for (auto action_it = tdp_actions.begin ();
+ action_it != tdp_actions.end (); action_it++)
{
- for (ndx = 0; stepping_actions[ndx]; ndx++)
- {
- QUIT; /* Allow user to bail out with ^C. */
- xsnprintf (buf, BUF_SIZE, "QTDP:-%x:%s:%s%s%s",
- b->number, addrbuf, /* address */
- ((ndx == 0) ? "S" : ""),
- stepping_actions[ndx],
- (stepping_actions[ndx + 1] ? "-" : ""));
- putpkt (buf);
- remote_get_noisy_reply ();
- if (strcmp (rs->buf, "OK"))
- error (_("Error on target while setting tracepoints."));
- }
+ QUIT; /* Allow user to bail out with ^C. */
+
+ bool has_more = (action_it != 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);
+ 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."));
+ }
+
if (packet_support (PACKET_TracepointSource) == PACKET_ENABLE)
{
if (b->location != NULL)
remote_download_command_source (b->number, loc->address,
breakpoint_commands (b));
}
-
- do_cleanups (old_chain);
}
static int
{
struct thread_info *info = find_thread_ptid (ptid);
- if (info && info->priv)
- return info->priv->core;
+ if (info != NULL && info->priv != NULL)
+ return get_remote_thread_info (info)->core;
+
return -1;
}
static traceframe_info_up
remote_traceframe_info (struct target_ops *self)
{
- char *text;
-
- text = target_read_stralloc (¤t_target,
- TARGET_OBJECT_TRACEFRAME_INFO, NULL);
+ gdb::unique_xmalloc_ptr<char> text
+ = target_read_stralloc (¤t_target, TARGET_OBJECT_TRACEFRAME_INFO,
+ NULL);
if (text != NULL)
- {
- struct cleanup *back_to = make_cleanup (xfree, text);
- traceframe_info_up info = parse_traceframe_info (text);
-
- do_cleanups (back_to);
- return info;
- }
+ return parse_traceframe_info (text.get ());
return NULL;
}
static void
btrace_read_config (struct btrace_config *conf)
{
- char *xml;
-
- xml = target_read_stralloc (¤t_target,
- TARGET_OBJECT_BTRACE_CONF, "");
+ gdb::unique_xmalloc_ptr<char> xml
+ = target_read_stralloc (¤t_target, TARGET_OBJECT_BTRACE_CONF, "");
if (xml != NULL)
- {
- struct cleanup *cleanup;
-
- cleanup = make_cleanup (xfree, xml);
- parse_xml_btrace_conf (conf, xml);
- do_cleanups (cleanup);
- }
+ parse_xml_btrace_conf (conf, xml.get ());
}
/* Maybe reopen target btrace. */
enum btrace_read_type type)
{
struct packet_config *packet = &remote_protocol_packets[PACKET_qXfer_btrace];
- struct cleanup *cleanup;
const char *annex;
- char *xml;
if (packet_config_support (packet) != PACKET_ENABLE)
error (_("Target does not support branch tracing."));
(unsigned int) type);
}
- xml = target_read_stralloc (¤t_target,
- TARGET_OBJECT_BTRACE, annex);
+ gdb::unique_xmalloc_ptr<char> xml
+ = target_read_stralloc (¤t_target, TARGET_OBJECT_BTRACE, annex);
if (xml == NULL)
return BTRACE_ERR_UNKNOWN;
- cleanup = make_cleanup (xfree, xml);
- parse_xml_btrace (btrace, xml);
- do_cleanups (cleanup);
+ parse_xml_btrace (btrace, xml.get ());
return BTRACE_ERR_NONE;
}
static char *
remote_pid_to_exec_file (struct target_ops *self, int pid)
{
- static char *filename = NULL;
+ static gdb::unique_xmalloc_ptr<char> filename;
struct inferior *inf;
char *annex = NULL;
if (packet_support (PACKET_qXfer_exec_file) != PACKET_ENABLE)
return NULL;
- if (filename != NULL)
- xfree (filename);
-
inf = find_inferior_pid (pid);
if (inf == NULL)
internal_error (__FILE__, __LINE__,
filename = target_read_stralloc (¤t_target,
TARGET_OBJECT_EXEC_FILE, annex);
- return filename;
+ return filename.get ();
}
/* Implement the to_can_do_single_step target_ops method. */
ALL_NON_EXITED_THREADS (tp)
{
- struct private_thread_info *priv = get_private_info_thread (tp);
+ remote_thread_info *priv = get_remote_thread_info (tp);
if (tp->inf == inf && priv != NULL)
{
- if (handle_len != priv->thread_handle->size ())
+ if (handle_len != priv->thread_handle.size ())
error (_("Thread handle size mismatch: %d vs %zu (from remote)"),
- handle_len, priv->thread_handle->size ());
- if (memcmp (thread_handle, priv->thread_handle->data (),
+ handle_len, priv->thread_handle.size ());
+ if (memcmp (thread_handle, priv->thread_handle.data (),
handle_len) == 0)
return tp;
}
/* The "set/show range-stepping" set hook. */
static void
-set_range_stepping (char *ignore_args, int from_tty,
+set_range_stepping (const char *ignore_args, int from_tty,
struct cmd_list_element *c)
{
struct remote_state *rs = get_remote_state ();
projects / thirdparty / binutils-gdb.git / blobdiff