/* Remote target communications for serial-line targets in custom GDB protocol
- Copyright (C) 1988-2016 Free Software Foundation, Inc.
+ Copyright (C) 1988-2018 Free Software Foundation, Inc.
This file is part of GDB.
#include "ax-gdb.h"
#include "agent.h"
#include "btrace.h"
-
-/* Temp hacks for tracepoint encoding migration. */
-static char *target_buf;
-static long target_buf_size;
+#include "record-btrace.h"
+#include <algorithm>
+#include "common/scoped_restore.h"
+#include "environ.h"
+#include "common/byte-vector.h"
/* Per-program-space data key. */
static const struct program_space_data *remote_pspace_data;
static void interrupt_query (void);
-static void set_general_thread (struct ptid ptid);
-static void set_continue_thread (struct ptid ptid);
+static void set_general_thread (ptid_t ptid);
+static void set_continue_thread (ptid_t ptid);
static void get_offsets (void);
static void print_packet (const char *);
-static void compare_sections_command (char *, int);
-
-static void packet_command (char *, int);
-
static int stub_unpack_int (char *buff, int fieldlength);
static ptid_t remote_current_thread (ptid_t oldptid);
const char *value);
static char *write_ptid (char *buf, const char *endbuf, ptid_t ptid);
-static ptid_t read_ptid (char *buf, char **obuf);
+static ptid_t read_ptid (const char *buf, const char **obuf);
static void remote_set_permissions (struct target_ops *self);
static void remote_check_symbols (void);
-void _initialize_remote (void);
-
struct stop_reply;
static void stop_reply_xfree (struct stop_reply *);
static void remote_parse_stop_reply (char *, struct stop_reply *);
static void remote_btrace_reset (void);
+static void remote_btrace_maybe_reopen (void);
+
static int stop_reply_queue_length (void);
static void readahead_cache_invalidate (void);
static void remote_unpush_and_throw (void);
+static struct remote_state *get_remote_state (void);
+
/* For "remote". */
static struct cmd_list_element *remote_cmdlist;
#define MAXTHREADLISTRESULTS 32
+/* The max number of chars in debug output. The rest of chars are
+ omitted. */
+
+#define REMOTE_DEBUG_MAX_CHAR 512
+
/* Data for the vFile:pread readahead cache. */
struct readahead_cache
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;
/* 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;
-static void
-free_private_thread_info (struct private_thread_info *info)
-{
- xfree (info->extra);
- xfree (info->name);
- xfree (info);
-}
+ /* Fields used by the vCont action coalescing implemented in
+ remote_resume / remote_commit_resume. remote_resume stores each
+ thread's last resume request in these fields, so that a later
+ remote_commit_resume knows which is the proper action for this
+ thread to include in the vCont packet. */
+
+ /* True if the last target_resume call for this thread was a step
+ request, false if a continue request. */
+ int last_resume_step = 0;
+
+ /* The signal specified in the last target_resume call for this
+ thread. */
+ gdb_signal last_resume_sig = GDB_SIGNAL_0;
+
+ /* Whether this thread was already vCont-resumed on the remote
+ side. */
+ int vcont_resumed = 0;
+};
/* 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
}
/* Utility: wait for reply from stub, while accepting "O" packets. */
+
static char *
-remote_get_noisy_reply (char **buf_p,
- long *sizeof_buf)
+remote_get_noisy_reply ()
{
+ struct remote_state *rs = get_remote_state ();
+
do /* Loop on reply from remote stub. */
{
char *buf;
QUIT; /* Allow user to bail out with ^C. */
- getpkt (buf_p, sizeof_buf, 0);
- buf = *buf_p;
+ getpkt (&rs->buf, &rs->buf_size, 0);
+ buf = rs->buf;
if (buf[0] == 'E')
trace_error (buf);
else if (startswith (buf, "qRelocInsn:"))
{
ULONGEST ul;
CORE_ADDR from, to, org_to;
- char *p, *pp;
+ const char *p, *pp;
int adjusted_size = 0;
int relocated = 0;
{
adjusted_size = to - org_to;
- xsnprintf (buf, *sizeof_buf, "qRelocInsn:%x", adjusted_size);
+ xsnprintf (buf, rs->buf_size, "qRelocInsn:%x", adjusted_size);
putpkt (buf);
}
}
static struct gdbarch_data *remote_gdbarch_data_handle;
static struct remote_arch_state *
-get_remote_arch_state (void)
+get_remote_arch_state (struct gdbarch *gdbarch)
{
- gdb_assert (target_gdbarch () != NULL);
+ gdb_assert (gdbarch != NULL);
return ((struct remote_arch_state *)
- gdbarch_data (target_gdbarch (), remote_gdbarch_data_handle));
+ gdbarch_data (gdbarch, remote_gdbarch_data_handle));
}
/* Fetch the global remote target state. */
function which calls getpkt also needs to be mindful of changes
to rs->buf, but this call limits the number of places which run
into trouble. */
- get_remote_arch_state ();
+ get_remote_arch_state (target_gdbarch ());
return get_remote_state_raw ();
}
/* 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;
}
get_remote_packet_size (void)
{
struct remote_state *rs = get_remote_state ();
- struct remote_arch_state *rsa = get_remote_arch_state ();
+ remote_arch_state *rsa = get_remote_arch_state (target_gdbarch ());
if (rs->explicit_packet_size)
return rs->explicit_packet_size;
}
static struct packet_reg *
-packet_reg_from_regnum (struct remote_arch_state *rsa, long regnum)
+packet_reg_from_regnum (struct gdbarch *gdbarch, struct remote_arch_state *rsa,
+ long regnum)
{
- if (regnum < 0 && regnum >= gdbarch_num_regs (target_gdbarch ()))
+ if (regnum < 0 && regnum >= gdbarch_num_regs (gdbarch))
return NULL;
else
{
}
static struct packet_reg *
-packet_reg_from_pnum (struct remote_arch_state *rsa, LONGEST pnum)
+packet_reg_from_pnum (struct gdbarch *gdbarch, struct remote_arch_state *rsa,
+ LONGEST pnum)
{
int i;
- for (i = 0; i < gdbarch_num_regs (target_gdbarch ()); i++)
+ for (i = 0; i < gdbarch_num_regs (gdbarch); i++)
{
struct packet_reg *r = &rsa->regs[i];
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,
struct memory_packet_config
{
- char *name;
+ const char *name;
long size;
int fixed_p;
};
get_memory_packet_size (struct memory_packet_config *config)
{
struct remote_state *rs = get_remote_state ();
- struct remote_arch_state *rsa = get_remote_arch_state ();
+ remote_arch_state *rsa = get_remote_arch_state (target_gdbarch ());
long what_they_get;
if (config->fixed_p)
something really big then do a sanity check. */
static void
-set_memory_packet_size (char *args, struct memory_packet_config *config)
+set_memory_packet_size (const char *args, struct memory_packet_config *config)
{
int fixed_p = config->fixed_p;
long size = config->size;
};
static void
-set_memory_write_packet_size (char *args, int from_tty)
+set_memory_write_packet_size (const char *args, int from_tty)
{
set_memory_packet_size (args, &memory_write_packet_config);
}
static void
-show_memory_write_packet_size (char *args, int from_tty)
+show_memory_write_packet_size (const char *args, int from_tty)
{
show_memory_packet_size (&memory_write_packet_config);
}
};
static void
-set_memory_read_packet_size (char *args, int from_tty)
+set_memory_read_packet_size (const char *args, int from_tty)
{
set_memory_packet_size (args, &memory_read_packet_config);
}
static void
-show_memory_read_packet_size (char *args, int from_tty)
+show_memory_read_packet_size (const char *args, int from_tty)
{
show_memory_packet_size (&memory_read_packet_config);
}
static void
show_packet_config_cmd (struct packet_config *config)
{
- char *support = "internal-error";
+ const char *support = "internal-error";
switch (packet_config_support (config))
{
PACKET_QPassSignals,
PACKET_QCatchSyscalls,
PACKET_QProgramSignals,
+ PACKET_QSetWorkingDir,
+ PACKET_QStartupWithShell,
+ PACKET_QEnvironmentHexEncoded,
+ PACKET_QEnvironmentReset,
+ PACKET_QEnvironmentUnset,
PACKET_qCRC,
PACKET_qSearch_memory,
PACKET_vAttach,
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;
/* If no main executable is currently open then attempt to
open the file that was executed to create this inferior. */
if (try_open_exec && get_exec_file (0) == NULL)
- exec_file_locate_attach (pid, 1);
+ exec_file_locate_attach (pid, 0, 1);
return inf;
}
+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. */
remote_add_thread (ptid_t ptid, int running, int executing)
{
struct remote_state *rs = get_remote_state ();
+ struct thread_info *thread;
/* GDB historically didn't pull threads in the initial connection
setup. If the remote target doesn't even have a concept of
might be confusing to the user. Be silent then, preserving the
age old behavior. */
if (rs->starting_up)
- add_thread_silent (ptid);
+ thread = add_thread_silent (ptid);
else
- add_thread (ptid);
+ thread = add_thread (ptid);
+ get_remote_thread_info (thread)->vcont_resumed = executing;
set_executing (ptid, executing);
set_running (ptid, running);
}
}
}
-/* Return the private thread data, creating it if necessary. */
+/* Return THREAD's private thread data, creating it if necessary. */
-static struct private_thread_info *
-demand_private_info (ptid_t ptid)
+static remote_thread_info *
+get_remote_thread_info (thread_info *thread)
{
- struct thread_info *info = find_thread_ptid (ptid);
+ gdb_assert (thread != NULL);
- gdb_assert (info);
+ if (thread->priv == NULL)
+ thread->priv.reset (new remote_thread_info);
- if (!info->priv)
- {
- info->priv = XNEW (struct private_thread_info);
- info->private_dtor = free_private_thread_info;
- info->priv->core = -1;
- info->priv->extra = NULL;
- info->priv->name = NULL;
- }
+ return static_cast<remote_thread_info *> (thread->priv.get ());
+}
+
+/* Return PTID's private thread data, creating it if necessary. */
+
+static remote_thread_info *
+get_remote_thread_info (ptid_t ptid)
+{
+ struct thread_info *info = find_thread_ptid (ptid);
- return info->priv;
+ 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
thread. If GEN is set, set the general thread, if not, then set
the step/continue thread. */
static void
-set_thread (struct ptid ptid, int gen)
+set_thread (ptid_t ptid, int gen)
{
struct remote_state *rs = get_remote_state ();
ptid_t state = gen ? rs->general_thread : rs->continue_thread;
}
static void
-set_general_thread (struct ptid ptid)
+set_general_thread (ptid_t ptid)
{
set_thread (ptid, 1);
}
static void
-set_continue_thread (struct ptid ptid)
+set_continue_thread (ptid_t ptid)
{
set_thread (ptid, 0);
}
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;
}
return buf;
}
-/* Extract a PTID from BUF. If non-null, OBUF is set to the to one
- passed the last parsed char. Returns null_ptid on error. */
+/* Extract a PTID from BUF. If non-null, OBUF is set to one past the
+ last parsed char. Returns null_ptid if no thread id is found, and
+ throws an error if the thread id has an invalid format. */
static ptid_t
-read_ptid (char *buf, char **obuf)
+read_ptid (const char *buf, const char **obuf)
{
- char *p = buf;
- char *pp;
+ const char *p = buf;
+ const char *pp;
ULONGEST pid = 0, tid = 0;
if (*p == 'p')
/* 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;
-} thread_item_t;
-DEF_VEC_O(thread_item_t);
+ int core = -1;
+
+ /* The thread handle associated with the thread. */
+ 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);
- }
+ 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);
+ int pid = inferior_ptid.pid ();
+ int lwp = threadref_to_int (ref);
+ ptid_t ptid (pid, lwp);
- item.ptid = ptid_build (pid, threadref_to_int (ref), 0);
- item.core = -1;
- item.name = NULL;
- item.extra = NULL;
-
- VEC_safe_push (thread_item_t, context->items, &item);
+ context->items.emplace_back (ptid);
return 1; /* continue iterator */
}
getpkt (&rs->buf, &rs->buf_size, 0);
if (rs->buf[0] == 'Q' && rs->buf[1] == 'C')
{
- char *obuf;
+ const char *obuf;
ptid_t result;
result = read_ptid (&rs->buf[2], &obuf);
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;
-
- item.extra = 0;
+ if (attr != NULL)
+ item.name = (const char *) attr->value.get ();
- VEC_safe_push (thread_item_t, data->items, &item);
+ attr = xml_find_attribute (attributes, "handle");
+ if (attr != NULL)
+ 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[] = {
{ "id", GDB_XML_AF_NONE, NULL, NULL },
{ "core", GDB_XML_AF_OPTIONAL, gdb_xml_parse_attr_ulongest, NULL },
{ "name", GDB_XML_AF_OPTIONAL, NULL, NULL },
+ { "handle", GDB_XML_AF_OPTIONAL, NULL, NULL },
{ NULL, GDB_XML_AF_NONE, NULL, NULL }
};
#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
if (rs->use_threadinfo_query)
{
- char *bufp;
+ const char *bufp;
putpkt ("qfThreadInfo");
getpkt (&rs->buf, &rs->buf_size, 0);
{
do
{
- struct thread_item item;
-
- item.ptid = read_ptid (bufp, &bufp);
- item.core = -1;
- item.name = NULL;
- item.extra = NULL;
-
- 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 = demand_private_info (item->ptid);
- info->core = item->core;
- info->extra = item->extra;
- item->extra = NULL;
- info->name = item->name;
- item->name = NULL;
+ 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);
}
/*
* Optional: targets are not required to implement this function.
*/
-static char *
+static const char *
remote_threads_extra_info (struct target_ops *self, struct thread_info *tp)
{
struct remote_state *rs = get_remote_state ();
{
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;
}
getpkt (&rs->buf, &rs->buf_size, 0);
if (rs->buf[0] != 0)
{
- n = min (strlen (rs->buf) / 2, sizeof (display_buf));
+ n = std::min (strlen (rs->buf) / 2, sizeof (display_buf));
result = hex2bin (rs->buf, (gdb_byte *) display_buf, n);
display_buf [result] = '\0';
return display_buf;
if (*p++ == 'm')
{
- parse_static_tracepoint_marker_definition (p, &p, marker);
+ parse_static_tracepoint_marker_definition (p, NULL, marker);
return 1;
}
VEC(static_tracepoint_marker_p) *markers = NULL;
struct static_tracepoint_marker *marker = NULL;
struct cleanup *old_chain;
- char *p;
+ const char *p;
/* Ask for a first packet of static tracepoint marker
definition. */
{
if (stop_reply[0] == 'T' && strlen (stop_reply) > 3)
{
- char *p;
+ const char *p;
/* Txx r:val ; r:val (...) */
p = &stop_reply[3];
/* Look for "register" named "thread". */
while (*p != '\0')
{
- char *p1;
+ const char *p1;
p1 = strchr (p, ':');
if (p1 == NULL)
{
struct remote_state *rs = get_remote_state ();
int fake_pid_p = 0;
- ptid_t ptid;
inferior_ptid = null_ptid;
/* Now, if we have thread information, update inferior_ptid. */
- ptid = get_current_thread (wait_status);
+ ptid_t curr_ptid = get_current_thread (wait_status);
- if (!ptid_equal (ptid, null_ptid))
+ if (curr_ptid != null_ptid)
{
if (!remote_multi_process_p (rs))
fake_pid_p = 1;
-
- inferior_ptid = ptid;
}
else
{
(such as kill) won't work. This variable serves (at least)
double duty as both the pid of the target process (if it has
such), and as a flag indicating that a target is active. */
- inferior_ptid = magic_null_ptid;
+ curr_ptid = magic_null_ptid;
fake_pid_p = 1;
}
- remote_add_inferior (fake_pid_p, ptid_get_pid (inferior_ptid), -1, 1);
+ remote_add_inferior (fake_pid_p, ptid_get_pid (curr_ptid), -1, 1);
- /* Add the main thread. */
- add_thread_silent (inferior_ptid);
+ /* Add the main thread and switch to it. Don't try reading
+ registers yet, since we haven't fetched the target description
+ yet. */
+ thread_info *tp = add_thread_silent (curr_ptid);
+ switch_to_thread_no_regs (tp);
}
/* Print info about a thread that was found already stopped on
set_executing (event_ptid, 0);
set_running (event_ptid, 0);
+ get_remote_thread_info (thread)->vcont_resumed = 0;
}
/* "Notice" the new inferiors before anything related to
if (packet_support (PACKET_QAllow) != PACKET_DISABLE)
remote_set_permissions (target);
+ /* gdbserver < 7.7 (before its fix from 2013-12-11) did reply to any
+ unknown 'v' packet with string "OK". "OK" gets interpreted by GDB
+ as a reply to known packet. For packet "vFile:setfs:" it is an
+ invalid reply and GDB would return error in
+ remote_hostio_set_filesystem, making remote files access impossible.
+ Disable "vFile:setfs:" in such case. Do not disable other 'v' packets as
+ other "vFile" packets get correctly detected even on gdbserver < 7.7. */
+ {
+ const char v_mustreplyempty[] = "vMustReplyEmpty";
+
+ putpkt (v_mustreplyempty);
+ getpkt (&rs->buf, &rs->buf_size, 0);
+ if (strcmp (rs->buf, "OK") == 0)
+ remote_protocol_packets[PACKET_vFile_setfs].support = PACKET_DISABLE;
+ else if (strcmp (rs->buf, "") != 0)
+ error (_("Remote replied unexpectedly to '%s': %s"), v_mustreplyempty,
+ rs->buf);
+ }
+
/* Next, we possibly activate noack mode.
If the QStartNoAckMode packet configuration is set to AUTO,
/* On OSs where the list of libraries is global to all
processes, we fetch them early. */
if (gdbarch_has_global_solist (target_gdbarch ()))
- solib_add (NULL, from_tty, target, auto_solib_add);
+ solib_add (NULL, from_tty, auto_solib_add);
if (target_is_non_stop_p ())
{
merge_uploaded_tracepoints (&uploaded_tps);
}
+ /* Possibly the target has been engaged in a btrace record started
+ previously; find out where things are at. */
+ remote_btrace_maybe_reopen ();
+
/* The thread and inferior lists are now synchronized with the
target, our symbols have been relocated, and we're merged the
target's tracepoints with ours. We're done with basic start
static void
remote_check_symbols (void)
{
- struct remote_state *rs = get_remote_state ();
char *msg, *reply, *tmp;
int end;
long reply_size;
PACKET_QCatchSyscalls },
{ "QProgramSignals", PACKET_DISABLE, remote_supported_packet,
PACKET_QProgramSignals },
+ { "QSetWorkingDir", PACKET_DISABLE, remote_supported_packet,
+ PACKET_QSetWorkingDir },
+ { "QStartupWithShell", PACKET_DISABLE, remote_supported_packet,
+ PACKET_QStartupWithShell },
+ { "QEnvironmentHexEncoded", PACKET_DISABLE, remote_supported_packet,
+ PACKET_QEnvironmentHexEncoded },
+ { "QEnvironmentReset", PACKET_DISABLE, remote_supported_packet,
+ PACKET_QEnvironmentReset },
+ { "QEnvironmentUnset", PACKET_DISABLE, remote_supported_packet,
+ PACKET_QEnvironmentUnset },
{ "QStartNoAckMode", PACKET_DISABLE, remote_supported_packet,
PACKET_QStartNoAckMode },
{ "multiprocess", PACKET_DISABLE, remote_supported_packet,
/* 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);
instead.
- The target has been resumed in the foreground
- (target_terminal_is_ours is false) with a synchronous resume
+ (target_terminal::is_ours is false) with a synchronous resume
packet, and we're blocked waiting for the stop reply, thus a
Ctrl-C should be immediately sent to the target.
remote_unpush_and_throw ();
}
/* If ^C has already been sent once, offer to disconnect. */
- else if (!target_terminal_is_ours () && rs->ctrlc_pending_p)
+ else if (!target_terminal::is_ours () && rs->ctrlc_pending_p)
interrupt_query ();
/* All-stop protocol, and blocked waiting for stop reply. Send
an interrupt request. */
- else if (!target_terminal_is_ours () && rs->waiting_for_stop_reply)
+ else if (!target_terminal::is_ours () && rs->waiting_for_stop_reply)
target_interrupt (inferior_ptid);
else
rs->got_ctrlc_during_io = 1;
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."));
- if (from_tty)
- {
- char *exec_file = get_exec_file (0);
- if (exec_file == NULL)
- exec_file = "";
- printf_unfiltered (_("Detaching from program: %s, %s\n"), exec_file,
- target_pid_to_str (pid_to_ptid (pid)));
- gdb_flush (gdb_stdout);
- }
+ target_announce_detach (from_tty);
/* Tell the remote target to detach. */
remote_detach_pid (pid);
/* If doing detach-on-fork, we don't mourn, because that will delete
breakpoints that should be available for the followed inferior. */
if (!is_fork_parent)
- target_mourn_inferior ();
+ target_mourn_inferior (inferior_ptid);
else
{
inferior_ptid = null_ptid;
}
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;
}
}
return p;
}
+/* Set the target running, using the packets that use Hc
+ (c/s/C/S). */
+
+static void
+remote_resume_with_hc (struct target_ops *ops,
+ ptid_t ptid, int step, enum gdb_signal siggnal)
+{
+ struct remote_state *rs = get_remote_state ();
+ struct thread_info *thread;
+ char *buf;
+
+ rs->last_sent_signal = siggnal;
+ rs->last_sent_step = step;
+
+ /* The c/s/C/S resume packets use Hc, so set the continue
+ thread. */
+ if (ptid_equal (ptid, minus_one_ptid))
+ set_continue_thread (any_thread_ptid);
+ else
+ set_continue_thread (ptid);
+
+ ALL_NON_EXITED_THREADS (thread)
+ resume_clear_thread_private_info (thread);
+
+ buf = rs->buf;
+ if (execution_direction == EXEC_REVERSE)
+ {
+ /* We don't pass signals to the target in reverse exec mode. */
+ if (info_verbose && siggnal != GDB_SIGNAL_0)
+ warning (_(" - Can't pass signal %d to target in reverse: ignored."),
+ siggnal);
+
+ if (step && packet_support (PACKET_bs) == PACKET_DISABLE)
+ error (_("Remote reverse-step not supported."));
+ if (!step && packet_support (PACKET_bc) == PACKET_DISABLE)
+ error (_("Remote reverse-continue not supported."));
+
+ strcpy (buf, step ? "bs" : "bc");
+ }
+ else if (siggnal != GDB_SIGNAL_0)
+ {
+ buf[0] = step ? 'S' : 'C';
+ buf[1] = tohex (((int) siggnal >> 4) & 0xf);
+ buf[2] = tohex (((int) siggnal) & 0xf);
+ buf[3] = '\0';
+ }
+ else
+ strcpy (buf, step ? "s" : "c");
+
+ putpkt (buf);
+}
+
/* Resume the remote inferior by using a "vCont" packet. The thread
to be resumed is PTID; STEP and SIGGNAL indicate whether the
resumed thread should be single-stepped and/or signalled. If PTID
be stepped and/or signalled is given in the global INFERIOR_PTID.
This function returns non-zero iff it resumes the inferior.
- This function issues a strict subset of all possible vCont commands at the
- moment. */
+ This function issues a strict subset of all possible vCont commands
+ at the moment. */
static int
-remote_vcont_resume (ptid_t ptid, int step, enum gdb_signal siggnal)
+remote_resume_with_vcont (ptid_t ptid, int step, enum gdb_signal siggnal)
{
struct remote_state *rs = get_remote_state ();
char *p;
char *endp;
+ /* No reverse execution actions defined for vCont. */
+ if (execution_direction == EXEC_REVERSE)
+ return 0;
+
if (packet_support (PACKET_vCont) == PACKET_SUPPORT_UNKNOWN)
remote_vcont_probe (rs);
ptid_t ptid, int step, enum gdb_signal siggnal)
{
struct remote_state *rs = get_remote_state ();
- char *buf;
- struct thread_info *thread;
+
+ /* When connected in non-stop mode, the core resumes threads
+ individually. Resuming remote threads directly in target_resume
+ would thus result in sending one packet per thread. Instead, to
+ minimize roundtrip latency, here we just store the resume
+ request; the actual remote resumption will be done in
+ target_commit_resume / remote_commit_resume, where we'll be able
+ to do vCont action coalescing. */
+ if (target_is_non_stop_p () && execution_direction != EXEC_REVERSE)
+ {
+ remote_thread_info *remote_thr;
+
+ if (ptid_equal (minus_one_ptid, ptid) || ptid_is_pid (ptid))
+ remote_thr = get_remote_thread_info (inferior_ptid);
+ else
+ remote_thr = get_remote_thread_info (ptid);
+
+ remote_thr->last_resume_step = step;
+ remote_thr->last_resume_sig = siggnal;
+ return;
+ }
/* In all-stop, we can't mark REMOTE_ASYNC_GET_PENDING_EVENTS_TOKEN
(explained in remote-notif.c:handle_notification) so
if (!target_is_non_stop_p ())
remote_notif_process (rs->notif_state, ¬if_client_stop);
- rs->last_sent_signal = siggnal;
- rs->last_sent_step = step;
-
rs->last_resume_exec_dir = execution_direction;
- /* The vCont packet doesn't need to specify threads via Hc. */
- /* No reverse support (yet) for vCont. */
- if (execution_direction != EXEC_REVERSE)
- if (remote_vcont_resume (ptid, step, siggnal))
- goto done;
-
- /* All other supported resume packets do use Hc, so set the continue
- thread. */
- if (ptid_equal (ptid, minus_one_ptid))
- set_continue_thread (any_thread_ptid);
- else
- set_continue_thread (ptid);
-
- ALL_NON_EXITED_THREADS (thread)
- resume_clear_thread_private_info (thread);
-
- buf = rs->buf;
- if (execution_direction == EXEC_REVERSE)
- {
- /* We don't pass signals to the target in reverse exec mode. */
- if (info_verbose && siggnal != GDB_SIGNAL_0)
- warning (_(" - Can't pass signal %d to target in reverse: ignored."),
- siggnal);
-
- if (step && packet_support (PACKET_bs) == PACKET_DISABLE)
- error (_("Remote reverse-step not supported."));
- if (!step && packet_support (PACKET_bc) == PACKET_DISABLE)
- error (_("Remote reverse-continue not supported."));
+ /* Prefer vCont, and fallback to s/c/S/C, which use Hc. */
+ if (!remote_resume_with_vcont (ptid, step, siggnal))
+ remote_resume_with_hc (ops, ptid, step, siggnal);
- strcpy (buf, step ? "bs" : "bc");
- }
- else if (siggnal != GDB_SIGNAL_0)
- {
- buf[0] = step ? 'S' : 'C';
- buf[1] = tohex (((int) siggnal >> 4) & 0xf);
- buf[2] = tohex (((int) siggnal) & 0xf);
- buf[3] = '\0';
- }
- else
- strcpy (buf, step ? "s" : "c");
-
- putpkt (buf);
-
- done:
/* We are about to start executing the inferior, let's register it
with the event loop. NOTE: this is the one place where all the
execution commands end up. We could alternatively do this in each
if (!target_is_non_stop_p ())
rs->waiting_for_stop_reply = 1;
}
+
+static void check_pending_events_prevent_wildcard_vcont
+ (int *may_global_wildcard_vcont);
+static int is_pending_fork_parent_thread (struct thread_info *thread);
+
+/* Private per-inferior info for target remote processes. */
+
+struct remote_inferior : public private_inferior
+{
+ /* Whether we can send a wildcard vCont for this process. */
+ 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. */
+
+struct vcont_builder
+{
+ /* Pointer to the first action. P points here if no action has been
+ appended yet. */
+ char *first_action;
+
+ /* Where the next action will be appended. */
+ char *p;
+
+ /* The end of the buffer. Must never write past this. */
+ char *endp;
+};
+
+/* Prepare the outgoing buffer for a new vCont packet. */
+
+static void
+vcont_builder_restart (struct vcont_builder *builder)
+{
+ struct remote_state *rs = get_remote_state ();
+
+ builder->p = rs->buf;
+ builder->endp = rs->buf + get_remote_packet_size ();
+ builder->p += xsnprintf (builder->p, builder->endp - builder->p, "vCont");
+ builder->first_action = builder->p;
+}
+
+/* If the vCont packet being built has any action, send it to the
+ remote end. */
+
+static void
+vcont_builder_flush (struct vcont_builder *builder)
+{
+ struct remote_state *rs;
+
+ if (builder->p == builder->first_action)
+ return;
+
+ rs = get_remote_state ();
+ putpkt (rs->buf);
+ getpkt (&rs->buf, &rs->buf_size, 0);
+ if (strcmp (rs->buf, "OK") != 0)
+ error (_("Unexpected vCont reply in non-stop mode: %s"), rs->buf);
+}
+
+/* The largest action is range-stepping, with its two addresses. This
+ is more than sufficient. If a new, bigger action is created, it'll
+ quickly trigger a failed assertion in append_resumption (and we'll
+ just bump this). */
+#define MAX_ACTION_SIZE 200
+
+/* Append a new vCont action in the outgoing packet being built. If
+ the action doesn't fit the packet along with previous actions, push
+ what we've got so far to the remote end and start over a new vCont
+ packet (with the new action). */
+
+static void
+vcont_builder_push_action (struct vcont_builder *builder,
+ ptid_t ptid, int step, enum gdb_signal siggnal)
+{
+ char buf[MAX_ACTION_SIZE + 1];
+ char *endp;
+ size_t rsize;
+
+ endp = append_resumption (buf, buf + sizeof (buf),
+ ptid, step, siggnal);
+
+ /* Check whether this new action would fit in the vCont packet along
+ with previous actions. If not, send what we've got so far and
+ start a new vCont packet. */
+ rsize = endp - buf;
+ if (rsize > builder->endp - builder->p)
+ {
+ vcont_builder_flush (builder);
+ vcont_builder_restart (builder);
+
+ /* Should now fit. */
+ gdb_assert (rsize <= builder->endp - builder->p);
+ }
+
+ memcpy (builder->p, buf, rsize);
+ builder->p += rsize;
+ *builder->p = '\0';
+}
+
+/* to_commit_resume implementation. */
+
+static void
+remote_commit_resume (struct target_ops *ops)
+{
+ struct inferior *inf;
+ struct thread_info *tp;
+ int any_process_wildcard;
+ int may_global_wildcard_vcont;
+ struct vcont_builder vcont_builder;
+
+ /* If connected in all-stop mode, we'd send the remote resume
+ request directly from remote_resume. Likewise if
+ reverse-debugging, as there are no defined vCont actions for
+ reverse execution. */
+ if (!target_is_non_stop_p () || execution_direction == EXEC_REVERSE)
+ return;
+
+ /* Try to send wildcard actions ("vCont;c" or "vCont;c:pPID.-1")
+ instead of resuming all threads of each process individually.
+ However, if any thread of a process must remain halted, we can't
+ send wildcard resumes and must send one action per thread.
+
+ Care must be taken to not resume threads/processes the server
+ side already told us are stopped, but the core doesn't know about
+ yet, because the events are still in the vStopped notification
+ queue. For example:
+
+ #1 => vCont s:p1.1;c
+ #2 <= OK
+ #3 <= %Stopped T05 p1.1
+ #4 => vStopped
+ #5 <= T05 p1.2
+ #6 => vStopped
+ #7 <= OK
+ #8 (infrun handles the stop for p1.1 and continues stepping)
+ #9 => vCont s:p1.1;c
+
+ The last vCont above would resume thread p1.2 by mistake, because
+ the server has no idea that the event for p1.2 had not been
+ handled yet.
+
+ The server side must similarly ignore resume actions for the
+ thread that has a pending %Stopped notification (and any other
+ threads with events pending), until GDB acks the notification
+ with vStopped. Otherwise, e.g., the following case is
+ mishandled:
+
+ #1 => g (or any other packet)
+ #2 <= [registers]
+ #3 <= %Stopped T05 p1.2
+ #4 => vCont s:p1.1;c
+ #5 <= OK
+
+ Above, the server must not resume thread p1.2. GDB can't know
+ that p1.2 stopped until it acks the %Stopped notification, and
+ since from GDB's perspective all threads should be running, it
+ sends a "c" action.
+
+ Finally, special care must also be given to handling fork/vfork
+ events. A (v)fork event actually tells us that two processes
+ stopped -- the parent and the child. Until we follow the fork,
+ we must not resume the child. Therefore, if we have a pending
+ fork follow, we must not send a global wildcard resume action
+ (vCont;c). We can still send process-wide wildcards though. */
+
+ /* Start by assuming a global wildcard (vCont;c) is possible. */
+ may_global_wildcard_vcont = 1;
+
+ /* And assume every process is individually wildcard-able too. */
+ ALL_NON_EXITED_INFERIORS (inf)
+ {
+ remote_inferior *priv = get_remote_inferior (inf);
+
+ priv->may_wildcard_vcont = true;
+ }
+
+ /* Check for any pending events (not reported or processed yet) and
+ disable process and global wildcard resumes appropriately. */
+ check_pending_events_prevent_wildcard_vcont (&may_global_wildcard_vcont);
+
+ ALL_NON_EXITED_THREADS (tp)
+ {
+ /* If a thread of a process is not meant to be resumed, then we
+ can't wildcard that process. */
+ if (!tp->executing)
+ {
+ get_remote_inferior (tp->inf)->may_wildcard_vcont = false;
+
+ /* And if we can't wildcard a process, we can't wildcard
+ everything either. */
+ may_global_wildcard_vcont = 0;
+ continue;
+ }
+
+ /* If a thread is the parent of an unfollowed fork, then we
+ can't do a global wildcard, as that would resume the fork
+ child. */
+ if (is_pending_fork_parent_thread (tp))
+ may_global_wildcard_vcont = 0;
+ }
+
+ /* Now let's build the vCont packet(s). Actions must be appended
+ from narrower to wider scopes (thread -> process -> global). If
+ we end up with too many actions for a single packet vcont_builder
+ flushes the current vCont packet to the remote side and starts a
+ new one. */
+ vcont_builder_restart (&vcont_builder);
+
+ /* Threads first. */
+ ALL_NON_EXITED_THREADS (tp)
+ {
+ remote_thread_info *remote_thr = get_remote_thread_info (tp);
+
+ if (!tp->executing || remote_thr->vcont_resumed)
+ continue;
+
+ gdb_assert (!thread_is_in_step_over_chain (tp));
+
+ if (!remote_thr->last_resume_step
+ && remote_thr->last_resume_sig == GDB_SIGNAL_0
+ && get_remote_inferior (tp->inf)->may_wildcard_vcont)
+ {
+ /* We'll send a wildcard resume instead. */
+ remote_thr->vcont_resumed = 1;
+ continue;
+ }
+
+ vcont_builder_push_action (&vcont_builder, tp->ptid,
+ remote_thr->last_resume_step,
+ remote_thr->last_resume_sig);
+ remote_thr->vcont_resumed = 1;
+ }
+
+ /* Now check whether we can send any process-wide wildcard. This is
+ to avoid sending a global wildcard in the case nothing is
+ supposed to be resumed. */
+ any_process_wildcard = 0;
+
+ ALL_NON_EXITED_INFERIORS (inf)
+ {
+ if (get_remote_inferior (inf)->may_wildcard_vcont)
+ {
+ any_process_wildcard = 1;
+ break;
+ }
+ }
+
+ if (any_process_wildcard)
+ {
+ /* If all processes are wildcard-able, then send a single "c"
+ action, otherwise, send an "all (-1) threads of process"
+ continue action for each running process, if any. */
+ if (may_global_wildcard_vcont)
+ {
+ vcont_builder_push_action (&vcont_builder, minus_one_ptid,
+ 0, GDB_SIGNAL_0);
+ }
+ else
+ {
+ ALL_NON_EXITED_INFERIORS (inf)
+ {
+ if (get_remote_inferior (inf)->may_wildcard_vcont)
+ {
+ vcont_builder_push_action (&vcont_builder,
+ pid_to_ptid (inf->pid),
+ 0, GDB_SIGNAL_0);
+ }
+ }
+ }
+ }
+
+ vcont_builder_flush (&vcont_builder);
+}
+
\f
/* Non-stop version of target_stop. Uses `vCont;t' to stop a remote
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;
- delete_file_handler (input_fd);
- 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;
- add_file_handler (input_fd, stdin_event_handler, 0);
- remote_async_terminal_ours_p = 1;
}
static void
gdb_flush (gdb_stdtarg);
}
-typedef struct cached_reg
-{
- int num;
- gdb_byte data[MAX_REGISTER_SIZE];
-} cached_reg_t;
-
DEF_VEC_O(cached_reg_t);
typedef struct stop_reply
struct target_waitstatus ws;
+ /* The architecture associated with the expedited registers. */
+ gdbarch *arch;
+
/* Expedited registers. This makes remote debugging a bit more
efficient for those targets that provide critical registers as
part of their normal status mechanism (as another roundtrip to
struct stop_reply *stop_reply = (struct stop_reply *) event;
/* acknowledge */
- putpkt ((char *) self->ack_command);
+ putpkt (self->ack_command);
if (stop_reply->ws.kind == TARGET_WAITKIND_IGNORE)
/* We got an unknown stop reply. */
stop_reply_dtr (struct notif_event *event)
{
struct stop_reply *r = (struct stop_reply *) event;
+ cached_reg_t *reg;
+ int ix;
+
+ for (ix = 0;
+ VEC_iterate (cached_reg_t, r->regcache, ix, reg);
+ ix++)
+ xfree (reg->data);
VEC_free (cached_reg_t, r->regcache);
}
struct stop_reply *output;
};
-/* Determine if THREAD is a pending fork parent thread. ARG contains
+/* Determine if THREAD_PTID is a pending fork parent thread. ARG contains
the pid of the process that owns the threads we want to check, or
-1 if we want to check all threads. */
return 0;
}
+/* Return the thread's pending status used to determine whether the
+ thread is a fork parent stopped at a fork event. */
+
+static struct target_waitstatus *
+thread_pending_fork_status (struct thread_info *thread)
+{
+ if (thread->suspend.waitstatus_pending_p)
+ return &thread->suspend.waitstatus;
+ else
+ return &thread->pending_follow;
+}
+
+/* Determine if THREAD is a pending fork parent thread. */
+
+static int
+is_pending_fork_parent_thread (struct thread_info *thread)
+{
+ struct target_waitstatus *ws = thread_pending_fork_status (thread);
+ int pid = -1;
+
+ return is_pending_fork_parent (ws, pid, thread->ptid);
+}
+
/* Check whether EVENT is a fork event, and if it is, remove the
fork child from the context list passed in DATA. */
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;
}
fork child threads from the CONTEXT list. */
ALL_NON_EXITED_THREADS (thread)
{
- struct target_waitstatus *ws;
-
- if (thread->suspend.waitstatus_pending_p)
- ws = &thread->suspend.waitstatus;
- else
- ws = &thread->pending_follow;
+ 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)
param.input = context;
param.output = NULL;
QUEUE_iterate (stop_reply_p, stop_reply_queue,
- remove_child_of_pending_fork, ¶m);
+ remove_child_of_pending_fork, ¶m);
+}
+
+/* Check whether EVENT would prevent a global or process wildcard
+ vCont action. */
+
+static int
+check_pending_event_prevents_wildcard_vcont_callback
+ (QUEUE (stop_reply_p) *q,
+ QUEUE_ITER (stop_reply_p) *iter,
+ stop_reply_p event,
+ void *data)
+{
+ struct inferior *inf;
+ int *may_global_wildcard_vcont = (int *) data;
+
+ if (event->ws.kind == TARGET_WAITKIND_NO_RESUMED
+ || event->ws.kind == TARGET_WAITKIND_NO_HISTORY)
+ return 1;
+
+ if (event->ws.kind == TARGET_WAITKIND_FORKED
+ || event->ws.kind == TARGET_WAITKIND_VFORKED)
+ *may_global_wildcard_vcont = 0;
+
+ inf = find_inferior_ptid (event->ptid);
+
+ /* This may be the first time we heard about this process.
+ Regardless, we must not do a global wildcard resume, otherwise
+ we'd resume this process too. */
+ *may_global_wildcard_vcont = 0;
+ if (inf != NULL)
+ get_remote_inferior (inf)->may_wildcard_vcont = false;
+
+ return 1;
+}
+
+/* Check whether any event pending in the vStopped queue would prevent
+ a global or process wildcard vCont action. Clear
+ *may_global_wildcard if we can't do a global wildcard (vCont;c),
+ and clear the event inferior's may_wildcard_vcont flag if we can't
+ do a process-wide wildcard resume (vCont;c:pPID.-1). */
+
+static void
+check_pending_events_prevent_wildcard_vcont (int *may_global_wildcard)
+{
+ struct notif_client *notif = ¬if_client_stop;
+
+ remote_notif_get_pending_events (notif);
+ QUEUE_iterate (stop_reply_p, stop_reply_queue,
+ check_pending_event_prevents_wildcard_vcont_callback,
+ may_global_wildcard);
}
/* Remove stop replies in the queue if its pid is equal to the given
static void
remote_parse_stop_reply (char *buf, struct stop_reply *event)
{
- struct remote_arch_state *rsa = get_remote_arch_state ();
+ remote_arch_state *rsa = NULL;
ULONGEST addr;
- char *p;
+ const char *p;
int skipregs = 0;
event->ptid = null_ptid;
p = &buf[3]; /* after Txx */
while (*p)
{
- char *p1;
+ const char *p1;
int fieldsize;
p1 = strchr (p, ':');
else
{
ULONGEST pnum;
- char *p_temp;
+ const char *p_temp;
if (skipregs)
{
reason. */
if (p_temp == p1)
{
- struct packet_reg *reg = packet_reg_from_pnum (rsa, pnum);
+ /* If we haven't parsed the event's thread yet, find
+ it now, in order to find the architecture of the
+ reported expedited registers. */
+ if (event->ptid == null_ptid)
+ {
+ const char *thr = strstr (p1 + 1, ";thread:");
+ if (thr != NULL)
+ event->ptid = read_ptid (thr + strlen (";thread:"),
+ NULL);
+ else
+ {
+ /* 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)
+ {
+ inferior *inf = (event->ptid == null_ptid
+ ? NULL
+ : find_inferior_ptid (event->ptid));
+ /* If this is the first time we learn anything
+ about this process, skip the registers
+ included in this packet, since we don't yet
+ know which architecture to use to parse them.
+ We'll determine the architecture later when
+ we process the stop reply and retrieve the
+ target description, via
+ remote_notice_new_inferior ->
+ post_create_inferior. */
+ if (inf == NULL)
+ {
+ p = strchrnul (p1 + 1, ';');
+ p++;
+ continue;
+ }
+
+ event->arch = inf->gdbarch;
+ rsa = get_remote_arch_state (event->arch);
+ }
+
+ packet_reg *reg
+ = packet_reg_from_pnum (event->arch, rsa, pnum);
cached_reg_t cached_reg;
if (reg == NULL)
hex_string (pnum), p, buf);
cached_reg.num = reg->regnum;
+ cached_reg.data = (gdb_byte *)
+ xmalloc (register_size (event->arch, reg->regnum));
p = p1 + 1;
fieldsize = hex2bin (p, cached_reg.data,
- register_size (target_gdbarch (),
- reg->regnum));
+ register_size (event->arch, reg->regnum));
p += 2 * fieldsize;
- if (fieldsize < register_size (target_gdbarch (),
- reg->regnum))
+ if (fieldsize < register_size (event->arch, reg->regnum))
warning (_("Remote reply is too short: %s"), buf);
VEC_safe_push (cached_reg_t, event->regcache, &cached_reg);
break;
case 'w': /* Thread exited. */
{
- char *p;
+ const char *p;
ULONGEST value;
event->ws.kind = TARGET_WAITKIND_THREAD_EXITED;
case 'W': /* Target exited. */
case 'X':
{
- char *p;
+ const char *p;
int pid;
ULONGEST value;
&& status->kind != TARGET_WAITKIND_SIGNALLED
&& status->kind != TARGET_WAITKIND_NO_RESUMED)
{
- struct private_thread_info *remote_thr;
-
/* Expedited registers. */
if (stop_reply->regcache)
{
struct regcache *regcache
- = get_thread_arch_regcache (ptid, target_gdbarch ());
+ = get_thread_arch_regcache (ptid, stop_reply->arch);
cached_reg_t *reg;
int ix;
for (ix = 0;
- VEC_iterate(cached_reg_t, stop_reply->regcache, ix, reg);
+ VEC_iterate (cached_reg_t, stop_reply->regcache, ix, reg);
ix++)
+ {
regcache_raw_supply (regcache, reg->num, reg->data);
+ xfree (reg->data);
+ }
+
VEC_free (cached_reg_t, stop_reply->regcache);
}
remote_notice_new_inferior (ptid, 0);
- remote_thr = demand_private_info (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;
+ remote_thr->vcont_resumed = 0;
}
stop_reply_xfree (stop_reply);
{
/* Zero length reply means that we tried 'S' or 'C' and the
remote system doesn't support it. */
- target_terminal_ours_for_output ();
+ target_terminal::ours_for_output ();
printf_filtered
("Can't send signals to this remote system. %s not sent.\n",
gdb_signal_to_name (rs->last_sent_signal));
rs->last_sent_signal = GDB_SIGNAL_0;
- target_terminal_inferior ();
+ target_terminal::inferior ();
- strcpy ((char *) buf, rs->last_sent_step ? "s" : "c");
- putpkt ((char *) buf);
+ strcpy (buf, rs->last_sent_step ? "s" : "c");
+ putpkt (buf);
break;
}
/* else fallthrough */
static int
fetch_register_using_p (struct regcache *regcache, struct packet_reg *reg)
{
+ struct gdbarch *gdbarch = regcache->arch ();
struct remote_state *rs = get_remote_state ();
char *buf, *p;
- char regp[MAX_REGISTER_SIZE];
+ gdb_byte *regp = (gdb_byte *) alloca (register_size (gdbarch, reg->regnum));
int i;
if (packet_support (PACKET_p) == PACKET_DISABLE)
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 ();
- struct remote_arch_state *rsa = get_remote_arch_state ();
+ remote_arch_state *rsa = get_remote_arch_state (gdbarch);
int i, buf_len;
char *p;
char *regs;
/* Further sanity checks, with knowledge of the architecture. */
if (buf_len > 2 * rsa->sizeof_g_packet)
- error (_("Remote 'g' packet reply is too long: %s"), rs->buf);
+ error (_("Remote 'g' packet reply is too long (expected %ld bytes, got %d "
+ "bytes): %s"), rsa->sizeof_g_packet, buf_len / 2, rs->buf);
/* Save the size of the packet sent to us by the target. It is used
as a heuristic when determining the max size of packets that the
the 'p' packet must be used. */
if (buf_len < 2 * rsa->sizeof_g_packet)
{
- rsa->sizeof_g_packet = buf_len / 2;
+ long sizeof_g_packet = buf_len / 2;
for (i = 0; i < gdbarch_num_regs (gdbarch); i++)
{
+ long offset = rsa->regs[i].offset;
+ long reg_size = register_size (gdbarch, i);
+
if (rsa->regs[i].pnum == -1)
continue;
- if (rsa->regs[i].offset >= rsa->sizeof_g_packet)
+ if (offset >= sizeof_g_packet)
rsa->regs[i].in_g_packet = 0;
+ else if (offset + reg_size > sizeof_g_packet)
+ error (_("Truncated register %d in remote 'g' packet"), i);
else
rsa->regs[i].in_g_packet = 1;
}
+
+ /* Looks valid enough, we can assume this is the correct length
+ for a 'g' packet. It's important not to adjust
+ rsa->sizeof_g_packet if we have truncated registers otherwise
+ this "if" won't be run the next time the method is called
+ with a packet of the same size and one of the internal errors
+ below will trigger instead. */
+ rsa->sizeof_g_packet = sizeof_g_packet;
}
regs = (char *) alloca (rsa->sizeof_g_packet);
for (i = 0; i < gdbarch_num_regs (gdbarch); i++)
{
struct packet_reg *r = &rsa->regs[i];
+ long reg_size = register_size (gdbarch, i);
if (r->in_g_packet)
{
- if (r->offset * 2 >= strlen (rs->buf))
+ if ((r->offset + reg_size) * 2 > strlen (rs->buf))
/* This shouldn't happen - we adjusted in_g_packet above. */
internal_error (__FILE__, __LINE__,
_("unexpected end of 'g' packet reply"));
remote_fetch_registers (struct target_ops *ops,
struct regcache *regcache, int regnum)
{
- struct remote_arch_state *rsa = get_remote_arch_state ();
+ struct gdbarch *gdbarch = regcache->arch ();
+ remote_arch_state *rsa = get_remote_arch_state (gdbarch);
int i;
set_remote_traceframe ();
- set_general_thread (inferior_ptid);
+ set_general_thread (regcache_get_ptid (regcache));
if (regnum >= 0)
{
- struct packet_reg *reg = packet_reg_from_regnum (rsa, regnum);
+ packet_reg *reg = packet_reg_from_regnum (gdbarch, rsa, regnum);
gdb_assert (reg != NULL);
fetch_registers_using_g (regcache);
- for (i = 0; i < gdbarch_num_regs (get_regcache_arch (regcache)); i++)
+ for (i = 0; i < gdbarch_num_regs (gdbarch); i++)
if (!rsa->regs[i].in_g_packet)
if (!fetch_register_using_p (regcache, &rsa->regs[i]))
{
static void
remote_prepare_to_store (struct target_ops *self, struct regcache *regcache)
{
- struct remote_arch_state *rsa = get_remote_arch_state ();
+ remote_arch_state *rsa = get_remote_arch_state (regcache->arch ());
int i;
- gdb_byte buf[MAX_REGISTER_SIZE];
/* Make sure the entire registers array is valid. */
switch (packet_support (PACKET_P))
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_read (regcache, rsa->regs[i].regnum, buf);
+ regcache_raw_update (regcache, rsa->regs[i].regnum);
break;
case PACKET_ENABLE:
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;
- gdb_byte regp[MAX_REGISTER_SIZE];
+ gdb_byte *regp = (gdb_byte *) alloca (register_size (gdbarch, reg->regnum));
char *p;
if (packet_support (PACKET_P) == PACKET_DISABLE)
store_registers_using_G (const struct regcache *regcache)
{
struct remote_state *rs = get_remote_state ();
- struct remote_arch_state *rsa = get_remote_arch_state ();
+ remote_arch_state *rsa = get_remote_arch_state (regcache->arch ());
gdb_byte *regs;
char *p;
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];
each byte encoded as two hex characters. */
p = rs->buf;
*p++ = 'G';
- /* remote_prepare_to_store insures that rsa->sizeof_g_packet gets
- updated. */
bin2hex (regs, p, rsa->sizeof_g_packet);
putpkt (rs->buf);
getpkt (&rs->buf, &rs->buf_size, 0);
remote_store_registers (struct target_ops *ops,
struct regcache *regcache, int regnum)
{
- struct remote_arch_state *rsa = get_remote_arch_state ();
+ struct gdbarch *gdbarch = regcache->arch ();
+ remote_arch_state *rsa = get_remote_arch_state (gdbarch);
int i;
set_remote_traceframe ();
- set_general_thread (inferior_ptid);
+ set_general_thread (regcache_get_ptid (regcache));
if (regnum >= 0)
{
- struct packet_reg *reg = packet_reg_from_regnum (rsa, regnum);
+ packet_reg *reg = packet_reg_from_regnum (gdbarch, rsa, regnum);
gdb_assert (reg != NULL);
store_registers_using_G (regcache);
- for (i = 0; i < gdbarch_num_regs (get_regcache_arch (regcache)); i++)
+ for (i = 0; i < gdbarch_num_regs (gdbarch); i++)
if (!rsa->regs[i].in_g_packet)
if (!store_register_using_P (regcache, &rsa->regs[i]))
/* See above for why we do not issue an error here. */
for (i = 0; num != 0; i++)
num >>= 4;
- return max (i, 1);
+ return std::max (i, 1);
}
/* Set BUF to the minimum number of hex digits representing NUM. */
if (packet_format == 'X')
{
/* Best guess at number of bytes that will fit. */
- todo_units = min (len_units, payload_capacity_bytes / unit_size);
+ todo_units = std::min (len_units,
+ (ULONGEST) payload_capacity_bytes / unit_size);
if (use_length)
payload_capacity_bytes -= hexnumlen (todo_units);
- todo_units = min (todo_units, payload_capacity_bytes / unit_size);
+ todo_units = std::min (todo_units, payload_capacity_bytes / unit_size);
}
else
{
/* Number of bytes that will fit. */
- todo_units = min (len_units, (payload_capacity_bytes / unit_size) / 2);
+ todo_units
+ = std::min (len_units,
+ (ULONGEST) (payload_capacity_bytes / unit_size) / 2);
if (use_length)
payload_capacity_bytes -= hexnumlen (todo_units);
- todo_units = min (todo_units, (payload_capacity_bytes / unit_size) / 2);
+ todo_units = std::min (todo_units,
+ (payload_capacity_bytes / unit_size) / 2);
}
if (todo_units <= 0)
/* 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.
remote_write_bytes (CORE_ADDR memaddr, const gdb_byte *myaddr, ULONGEST len,
int unit_size, ULONGEST *xfered_len)
{
- char *packet_format = 0;
+ const char *packet_format = NULL;
/* Check whether the target supports binary download. */
check_binary_download (memaddr);
get_memory_packet_size ensures this. */
/* Number of units that will fit. */
- todo_units = min (len_units, (buf_size_bytes / unit_size) / 2);
+ todo_units = std::min (len_units,
+ (ULONGEST) (buf_size_bytes / unit_size) / 2);
/* Construct "m"<memaddr>","<len>". */
memaddr = remote_address_masked (memaddr);
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
if (get_traceframe_number () != -1)
{
- VEC(mem_range_s) *available;
+ std::vector<mem_range> available;
/* If we fail to get the set of available memory, then the
target does not support querying traceframe info, and so we
target implements the old QTro packet then). */
if (traceframe_available_memory (&available, memaddr, len))
{
- struct cleanup *old_chain;
-
- old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available);
-
- if (VEC_empty (mem_range_s, available)
- || VEC_index (mem_range_s, available, 0)->start != memaddr)
+ if (available.empty () || available[0].start != memaddr)
{
enum target_xfer_status res;
/* Don't read into the traceframe's available
memory. */
- if (!VEC_empty (mem_range_s, available))
+ if (!available.empty ())
{
LONGEST oldlen = len;
- len = VEC_index (mem_range_s, available, 0)->start - memaddr;
+ len = available[0].start - memaddr;
gdb_assert (len <= oldlen);
}
- do_cleanups (old_chain);
-
/* This goes through the topmost target again. */
res = remote_xfer_live_readonly_partial (ops, myaddr, memaddr,
len, unit_size, xfered_len);
/* 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;
}
}
case the target implements the deprecated QTro packet to
cater for older GDBs (the target's knowledge of read-only
sections may be outdated by now). */
- len = VEC_index (mem_range_s, available, 0)->length;
-
- do_cleanups (old_chain);
+ len = available[0].length;
}
}
return packet_check_result (rs->buf);
}
-static void
-restore_remote_timeout (void *p)
-{
- int value = *(int *)p;
-
- remote_timeout = value;
-}
-
/* Flash writing can take quite some time. We'll set
effectively infinite timeout for flash operations.
In future, we'll need to decide on a better approach. */
ULONGEST address, LONGEST length)
{
int addr_size = gdbarch_addr_bit (target_gdbarch ()) / 8;
- int saved_remote_timeout = remote_timeout;
enum packet_result ret;
- struct cleanup *back_to = make_cleanup (restore_remote_timeout,
- &saved_remote_timeout);
-
- remote_timeout = remote_flash_timeout;
+ scoped_restore restore_timeout
+ = make_scoped_restore (&remote_timeout, remote_flash_timeout);
ret = remote_send_printf ("vFlashErase:%s,%s",
phex (address, addr_size),
default:
break;
}
-
- do_cleanups (back_to);
}
static enum target_xfer_status
ULONGEST length, ULONGEST *xfered_len,
const gdb_byte *data)
{
- int saved_remote_timeout = remote_timeout;
- enum target_xfer_status ret;
- struct cleanup *back_to = make_cleanup (restore_remote_timeout,
- &saved_remote_timeout);
-
- remote_timeout = remote_flash_timeout;
- ret = remote_write_bytes_aux ("vFlashWrite:", address, data, length, 1,
- xfered_len,'X', 0);
- do_cleanups (back_to);
-
- return ret;
+ scoped_restore restore_timeout
+ = make_scoped_restore (&remote_timeout, remote_flash_timeout);
+ return remote_write_bytes_aux ("vFlashWrite:", address, data, length, 1,
+ xfered_len,'X', 0);
}
static void
remote_flash_done (struct target_ops *ops)
{
- int saved_remote_timeout = remote_timeout;
int ret;
- struct cleanup *back_to = make_cleanup (restore_remote_timeout,
- &saved_remote_timeout);
- remote_timeout = remote_flash_timeout;
+ scoped_restore restore_timeout
+ = make_scoped_restore (&remote_timeout, remote_flash_timeout);
+
ret = remote_send_printf ("vFlashDone");
- do_cleanups (back_to);
switch (ret)
{
{
int ch;
struct remote_state *rs = get_remote_state ();
- struct cleanup *old_chain;
- old_chain = make_cleanup_override_quit_handler (remote_serial_quit_handler);
-
- rs->got_ctrlc_during_io = 0;
+ {
+ scoped_restore restore_quit
+ = make_scoped_restore (&quit_handler, remote_serial_quit_handler);
- ch = serial_readchar (rs->remote_desc, timeout);
+ rs->got_ctrlc_during_io = 0;
- if (rs->got_ctrlc_during_io)
- set_quit_flag ();
+ ch = serial_readchar (rs->remote_desc, timeout);
- do_cleanups (old_chain);
+ if (rs->got_ctrlc_during_io)
+ set_quit_flag ();
+ }
if (ch >= 0)
return ch;
remote_serial_write (const char *str, int len)
{
struct remote_state *rs = get_remote_state ();
- struct cleanup *old_chain;
- old_chain = make_cleanup_override_quit_handler (remote_serial_quit_handler);
+ scoped_restore restore_quit
+ = make_scoped_restore (&quit_handler, remote_serial_quit_handler);
rs->got_ctrlc_during_io = 0;
if (rs->got_ctrlc_during_io)
set_quit_flag ();
-
- do_cleanups (old_chain);
}
/* Send the command in *BUF to the remote machine, and read the reply
error (_("Remote failure reply: %s"), *buf);
}
-/* Return a pointer to an xmalloc'ed string representing an escaped
- version of BUF, of len N. E.g. \n is converted to \\n, \t to \\t,
- etc. The caller is responsible for releasing the returned
- memory. */
+/* Return a string representing an escaped version of BUF, of len N.
+ E.g. \n is converted to \\n, \t to \\t, etc. */
-static char *
+static std::string
escape_buffer (const char *buf, int n)
{
- struct cleanup *old_chain;
- struct ui_file *stb;
- char *str;
+ string_file stb;
- stb = mem_fileopen ();
- old_chain = make_cleanup_ui_file_delete (stb);
-
- fputstrn_unfiltered (buf, n, '\\', stb);
- str = ui_file_xstrdup (stb, NULL);
- do_cleanups (old_chain);
- return str;
+ stb.putstrn (buf, n, '\\');
+ return std::move (stb.string ());
}
/* Display a null-terminated packet on stdout, for debugging, using C
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;
if (remote_debug)
{
- struct cleanup *old_chain;
- char *str;
-
*p = '\0';
- str = escape_buffer (buf2, p - buf2);
- old_chain = make_cleanup (xfree, str);
- fprintf_unfiltered (gdb_stdlog, "Sending packet: %s...", str);
+
+ int len = (int) (p - buf2);
+
+ std::string str
+ = escape_buffer (buf2, std::min (len, REMOTE_DEBUG_MAX_CHAR));
+
+ fprintf_unfiltered (gdb_stdlog, "Sending packet: %s", str.c_str ());
+
+ if (str.length () > REMOTE_DEBUG_MAX_CHAR)
+ {
+ fprintf_unfiltered (gdb_stdlog, "[%zu bytes omitted]",
+ str.length () - REMOTE_DEBUG_MAX_CHAR);
+ }
+
+ fprintf_unfiltered (gdb_stdlog, "...");
+
gdb_flush (gdb_stdlog);
- do_cleanups (old_chain);
}
remote_serial_write (buf2, p - buf2);
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 '$':
{
{
if (remote_debug)
{
- struct cleanup *old_chain;
- char *str;
+ std::string str = escape_buffer (rs->buf, val);
- str = escape_buffer (rs->buf, val);
- old_chain = make_cleanup (xfree, str);
fprintf_unfiltered (gdb_stdlog,
" Notification received: %s\n",
- str);
- do_cleanups (old_chain);
+ str.c_str ());
}
handle_notification (rs->notif_state, rs->buf);
/* We're in sync now, rewait for the ack. */
#endif
}
- do_cleanups (old_chain);
return 0;
}
if (remote_debug)
{
- struct cleanup *old_chain;
- char *str;
+ std::string str = escape_buffer (buf, bc);
- str = escape_buffer (buf, bc);
- old_chain = make_cleanup (xfree, str);
fprintf_unfiltered (gdb_stdlog,
"Bad checksum, sentsum=0x%x, "
"csum=0x%x, buf=%s\n",
- pktcsum, csum, str);
- do_cleanups (old_chain);
+ pktcsum, csum, str.c_str ());
}
/* Number of characters in buffer ignoring trailing
NULL. */
{
if (remote_debug)
{
- struct cleanup *old_chain;
- char *str;
+ std::string str
+ = escape_buffer (*buf,
+ std::min (val, REMOTE_DEBUG_MAX_CHAR));
+
+ fprintf_unfiltered (gdb_stdlog, "Packet received: %s",
+ str.c_str ());
+
+ if (str.length () > REMOTE_DEBUG_MAX_CHAR)
+ {
+ fprintf_unfiltered (gdb_stdlog, "[%zu bytes omitted]",
+ str.length () - REMOTE_DEBUG_MAX_CHAR);
+ }
- str = escape_buffer (*buf, val);
- old_chain = make_cleanup (xfree, str);
- fprintf_unfiltered (gdb_stdlog, "Packet received: %s\n", str);
- do_cleanups (old_chain);
+ fprintf_unfiltered (gdb_stdlog, "\n");
}
/* Skip the ack char if we're in no-ack mode. */
if (remote_debug)
{
- struct cleanup *old_chain;
- char *str;
+ std::string str = escape_buffer (*buf, val);
- str = escape_buffer (*buf, val);
- old_chain = make_cleanup (xfree, str);
fprintf_unfiltered (gdb_stdlog,
" Notification received: %s\n",
- str);
- do_cleanups (old_chain);
+ str.c_str ());
}
if (is_notif != NULL)
*is_notif = 1;
res = remote_vkill (pid, rs);
if (res == 0)
{
- target_mourn_inferior ();
+ target_mourn_inferior (inferior_ptid);
return;
}
}
not in extended mode, mourning the inferior also unpushes
remote_ops from the target stack, which closes the remote
connection. */
- target_mourn_inferior ();
+ target_mourn_inferior (inferior_ptid);
return;
}
xsnprintf (rs->buf, get_remote_packet_size (), "QDisableRandomization:%x",
val);
putpkt (rs->buf);
- reply = remote_get_noisy_reply (&target_buf, &target_buf_size);
+ reply = remote_get_noisy_reply ();
if (*reply == '\0')
error (_("Target does not support QDisableRandomization."));
if (strcmp (reply, "OK") != 0)
}
static int
-extended_remote_run (char *args)
+extended_remote_run (const std::string &args)
{
struct remote_state *rs = get_remote_state ();
int len;
len += 2 * bin2hex ((gdb_byte *) remote_exec_file, rs->buf + len,
strlen (remote_exec_file));
- gdb_assert (args != NULL);
- if (*args)
+ if (!args.empty ())
{
- struct cleanup *back_to;
int i;
- char **argv;
- argv = gdb_buildargv (args);
- back_to = make_cleanup_freeargv (argv);
+ gdb_argv argv (args.c_str ());
for (i = 0; argv[i] != NULL; i++)
{
if (strlen (argv[i]) * 2 + 1 + len >= get_remote_packet_size ())
len += 2 * bin2hex ((gdb_byte *) argv[i], rs->buf + len,
strlen (argv[i]));
}
- do_cleanups (back_to);
}
rs->buf[len++] = '\0';
}
}
+/* Helper function to send set/unset environment packets. ACTION is
+ either "set" or "unset". PACKET is either "QEnvironmentHexEncoded"
+ or "QEnvironmentUnsetVariable". VALUE is the variable to be
+ sent. */
+
+static void
+send_environment_packet (struct remote_state *rs,
+ const char *action,
+ const char *packet,
+ const char *value)
+{
+ /* Convert the environment variable to an hex string, which
+ is the best format to be transmitted over the wire. */
+ std::string encoded_value = bin2hex ((const gdb_byte *) value,
+ strlen (value));
+
+ xsnprintf (rs->buf, get_remote_packet_size (),
+ "%s:%s", packet, encoded_value.c_str ());
+
+ putpkt (rs->buf);
+ getpkt (&rs->buf, &rs->buf_size, 0);
+ if (strcmp (rs->buf, "OK") != 0)
+ warning (_("Unable to %s environment variable '%s' on remote."),
+ action, value);
+}
+
+/* Helper function to handle the QEnvironment* packets. */
+
+static void
+extended_remote_environment_support (struct remote_state *rs)
+{
+ if (packet_support (PACKET_QEnvironmentReset) != PACKET_DISABLE)
+ {
+ putpkt ("QEnvironmentReset");
+ getpkt (&rs->buf, &rs->buf_size, 0);
+ if (strcmp (rs->buf, "OK") != 0)
+ warning (_("Unable to reset environment on remote."));
+ }
+
+ gdb_environ *e = ¤t_inferior ()->environment;
+
+ if (packet_support (PACKET_QEnvironmentHexEncoded) != PACKET_DISABLE)
+ for (const std::string &el : e->user_set_env ())
+ send_environment_packet (rs, "set", "QEnvironmentHexEncoded",
+ el.c_str ());
+
+ if (packet_support (PACKET_QEnvironmentUnset) != PACKET_DISABLE)
+ for (const std::string &el : e->user_unset_env ())
+ send_environment_packet (rs, "unset", "QEnvironmentUnset", el.c_str ());
+}
+
+/* Helper function to set the current working directory for the
+ inferior in the remote target. */
+
+static void
+extended_remote_set_inferior_cwd (struct remote_state *rs)
+{
+ if (packet_support (PACKET_QSetWorkingDir) != PACKET_DISABLE)
+ {
+ const char *inferior_cwd = get_inferior_cwd ();
+
+ if (inferior_cwd != NULL)
+ {
+ std::string hexpath = bin2hex ((const gdb_byte *) inferior_cwd,
+ strlen (inferior_cwd));
+
+ xsnprintf (rs->buf, get_remote_packet_size (),
+ "QSetWorkingDir:%s", hexpath.c_str ());
+ }
+ else
+ {
+ /* An empty inferior_cwd means that the user wants us to
+ reset the remote server's inferior's cwd. */
+ xsnprintf (rs->buf, get_remote_packet_size (),
+ "QSetWorkingDir:");
+ }
+
+ putpkt (rs->buf);
+ getpkt (&rs->buf, &rs->buf_size, 0);
+ if (packet_ok (rs->buf,
+ &remote_protocol_packets[PACKET_QSetWorkingDir])
+ != PACKET_OK)
+ error (_("\
+Remote replied unexpectedly while setting the inferior's working\n\
+directory: %s"),
+ rs->buf);
+
+ }
+}
+
/* In the extended protocol we want to be able to do things like
"run" and have them basically work as expected. So we need
a special create_inferior function. We support changing the
static void
extended_remote_create_inferior (struct target_ops *ops,
- char *exec_file, char *args,
+ const char *exec_file,
+ const std::string &args,
char **env, int from_tty)
{
int run_worked;
if (extended_remote_supports_disable_randomization (ops))
extended_remote_disable_randomization (disable_randomization);
+ /* If startup-with-shell is on, we inform gdbserver to start the
+ remote inferior using a shell. */
+ if (packet_support (PACKET_QStartupWithShell) != PACKET_DISABLE)
+ {
+ xsnprintf (rs->buf, get_remote_packet_size (),
+ "QStartupWithShell:%d", startup_with_shell ? 1 : 0);
+ putpkt (rs->buf);
+ getpkt (&rs->buf, &rs->buf_size, 0);
+ if (strcmp (rs->buf, "OK") != 0)
+ error (_("\
+Remote replied unexpectedly while setting startup-with-shell: %s"),
+ rs->buf);
+ }
+
+ extended_remote_environment_support (rs);
+
+ extended_remote_set_inferior_cwd (rs);
+
/* Now restart the remote server. */
run_worked = extended_remote_run (args) != -1;
if (!run_worked)
user requested. */
if (remote_exec_file[0])
error (_("Remote target does not support \"set remote exec-file\""));
- if (args[0])
+ if (!args.empty ())
error (_("Remote target does not support \"set args\" or run <ARGS>"));
/* Fall back to "R". */
struct bp_target_info *bp_tgt, char *buf,
char *buf_end)
{
- struct agent_expr *aexpr = NULL;
- int i, ix;
-
- if (VEC_empty (agent_expr_p, bp_tgt->conditions))
+ if (bp_tgt->conditions.empty ())
return 0;
buf += strlen (buf);
xsnprintf (buf, buf_end - buf, "%s", ";");
buf++;
- /* Send conditions to the target and free the vector. */
- for (ix = 0;
- VEC_iterate (agent_expr_p, bp_tgt->conditions, ix, aexpr);
- ix++)
+ /* Send conditions to the target. */
+ for (agent_expr *aexpr : bp_tgt->conditions)
{
xsnprintf (buf, buf_end - buf, "X%x,", aexpr->len);
buf += strlen (buf);
- for (i = 0; i < aexpr->len; ++i)
+ for (int i = 0; i < aexpr->len; ++i)
buf = pack_hex_byte (buf, aexpr->buf[i]);
*buf = '\0';
}
remote_add_target_side_commands (struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt, char *buf)
{
- struct agent_expr *aexpr = NULL;
- int i, ix;
-
- if (VEC_empty (agent_expr_p, bp_tgt->tcommands))
+ if (bp_tgt->tcommands.empty ())
return;
buf += strlen (buf);
/* Concatenate all the agent expressions that are commands into the
cmds parameter. */
- for (ix = 0;
- VEC_iterate (agent_expr_p, bp_tgt->tcommands, ix, aexpr);
- ix++)
+ for (agent_expr *aexpr : bp_tgt->tcommands)
{
sprintf (buf, "X%x,", aexpr->len);
buf += strlen (buf);
- for (i = 0; i < aexpr->len; ++i)
+ for (int i = 0; i < aexpr->len; ++i)
buf = pack_hex_byte (buf, aexpr->buf[i]);
*buf = '\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. */
if (!gdbarch_has_global_breakpoints (target_gdbarch ()))
set_general_process ();
- gdbarch_remote_breakpoint_from_pc (gdbarch, &addr, &bpsize);
-
rs = get_remote_state ();
p = rs->buf;
endbuf = rs->buf + get_remote_packet_size ();
*(p++) = ',';
addr = (ULONGEST) remote_address_masked (addr);
p += hexnumstr (p, addr);
- xsnprintf (p, endbuf - p, ",%d", bpsize);
+ xsnprintf (p, endbuf - p, ",%d", bp_tgt->kind);
if (remote_supports_cond_breakpoints (ops))
remote_add_target_side_condition (gdbarch, bp_tgt, p, endbuf);
case PACKET_ERROR:
return -1;
case PACKET_OK:
- bp_tgt->placed_address = addr;
- bp_tgt->placed_size = bpsize;
return 0;
case PACKET_UNKNOWN:
break;
/* If this breakpoint has target-side commands but this stub doesn't
support Z0 packets, throw error. */
- if (!VEC_empty (agent_expr_p, bp_tgt->tcommands))
+ if (!bp_tgt->tcommands.empty ())
throw_error (NOT_SUPPORTED_ERROR, _("\
Target doesn't support breakpoints that have target side commands."));
static int
remote_remove_breakpoint (struct target_ops *ops,
struct gdbarch *gdbarch,
- struct bp_target_info *bp_tgt)
+ struct bp_target_info *bp_tgt,
+ enum remove_bp_reason reason)
{
CORE_ADDR addr = bp_tgt->placed_address;
struct remote_state *rs = get_remote_state ();
addr = (ULONGEST) remote_address_masked (bp_tgt->placed_address);
p += hexnumstr (p, addr);
- xsnprintf (p, endbuf - p, ",%d", bp_tgt->placed_size);
+ xsnprintf (p, endbuf - p, ",%d", bp_tgt->kind);
putpkt (rs->buf);
getpkt (&rs->buf, &rs->buf_size, 0);
return (rs->buf[0] == 'E');
}
- return memory_remove_breakpoint (ops, gdbarch, bp_tgt);
+ return memory_remove_breakpoint (ops, gdbarch, bp_tgt, reason);
}
static enum Z_packet_type
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;
}
struct remote_state *rs;
char *p, *endbuf;
char *message;
- int bpsize;
-
- /* The length field should be set to the size of a breakpoint
- instruction, even though we aren't inserting one ourselves. */
-
- gdbarch_remote_breakpoint_from_pc (gdbarch, &addr, &bpsize);
if (packet_support (PACKET_Z1) == PACKET_DISABLE)
return -1;
addr = remote_address_masked (addr);
p += hexnumstr (p, (ULONGEST) addr);
- xsnprintf (p, endbuf - p, ",%x", bpsize);
+ xsnprintf (p, endbuf - p, ",%x", bp_tgt->kind);
if (remote_supports_cond_breakpoints (self))
remote_add_target_side_condition (gdbarch, bp_tgt, p, endbuf);
case PACKET_UNKNOWN:
return -1;
case PACKET_OK:
- bp_tgt->placed_address = addr;
- bp_tgt->placed_size = bpsize;
return 0;
}
internal_error (__FILE__, __LINE__,
addr = remote_address_masked (bp_tgt->placed_address);
p += hexnumstr (p, (ULONGEST) addr);
- xsnprintf (p, endbuf - p, ",%x", bp_tgt->placed_size);
+ xsnprintf (p, endbuf - p, ",%x", bp_tgt->kind);
putpkt (rs->buf);
getpkt (&rs->buf, &rs->buf_size, 0);
Useful for verifying the image on the target against the exec file. */
static void
-compare_sections_command (char *args, int from_tty)
+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
may not, since we don't know how much of it will need to be escaped;
the target is free to respond with slightly less data. We subtract
five to account for the response type and the protocol frame. */
- n = min (get_remote_packet_size () - 5, len);
+ n = std::min<LONGEST> (get_remote_packet_size () - 5, len);
snprintf (rs->buf, get_remote_packet_size () - 4, "qXfer:%s:read:%s:%s,%s",
object_name, annex ? annex : "",
phex_nz (offset, sizeof offset),
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. */
+
+static ULONGEST
+remote_get_memory_xfer_limit (struct target_ops *ops)
+{
+ return get_memory_write_packet_size ();
}
static int
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;
}
static void
-packet_command (char *args, int from_tty)
+packet_command (const char *args, int from_tty)
{
struct remote_state *rs = get_remote_state ();
#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);
/* Convert a thread ID to a string. Returns the string in a static
buffer. */
-static char *
+static const char *
remote_pid_to_str (struct target_ops *ops, ptid_t ptid)
{
static char buf[64];
decrease *LEFT. Otherwise raise an error. */
static void
-remote_buffer_add_string (char **buffer, int *left, char *string)
+remote_buffer_add_string (char **buffer, int *left, const char *string)
{
int len = strlen (string);
{
struct cleanup *back_to, *close_cleanup;
int retcode, fd, remote_errno, bytes, io_size;
- FILE *file;
gdb_byte *buffer;
int bytes_in_buffer;
int saw_eof;
if (!rs->remote_desc)
error (_("command can only be used with remote target"));
- file = gdb_fopen_cloexec (local_file, "rb");
+ gdb_file_up file = gdb_fopen_cloexec (local_file, "rb");
if (file == NULL)
perror_with_name (local_file);
- back_to = make_cleanup_fclose (file);
fd = remote_hostio_open (find_target_at (process_stratum), NULL,
remote_file, (FILEIO_O_WRONLY | FILEIO_O_CREAT
remote packet limit, so we'll transfer slightly fewer. */
io_size = get_remote_packet_size ();
buffer = (gdb_byte *) xmalloc (io_size);
- make_cleanup (xfree, buffer);
+ back_to = make_cleanup (xfree, buffer);
close_cleanup = make_cleanup (remote_hostio_close_cleanup, &fd);
{
bytes = fread (buffer + bytes_in_buffer, 1,
io_size - bytes_in_buffer,
- file);
+ file.get ());
if (bytes == 0)
{
- if (ferror (file))
+ if (ferror (file.get ()))
error (_("Error reading %s."), local_file);
else
{
{
struct cleanup *back_to, *close_cleanup;
int fd, remote_errno, bytes, io_size;
- FILE *file;
gdb_byte *buffer;
ULONGEST offset;
struct remote_state *rs = get_remote_state ();
if (fd == -1)
remote_hostio_error (remote_errno);
- file = gdb_fopen_cloexec (local_file, "wb");
+ gdb_file_up file = gdb_fopen_cloexec (local_file, "wb");
if (file == NULL)
perror_with_name (local_file);
- back_to = make_cleanup_fclose (file);
/* Send up to this many bytes at once. They won't all fit in the
remote packet limit, so we'll transfer slightly fewer. */
io_size = get_remote_packet_size ();
buffer = (gdb_byte *) xmalloc (io_size);
- make_cleanup (xfree, buffer);
+ back_to = make_cleanup (xfree, buffer);
close_cleanup = make_cleanup (remote_hostio_close_cleanup, &fd);
offset += bytes;
- bytes = fwrite (buffer, 1, bytes, file);
+ bytes = fwrite (buffer, 1, bytes, file.get ());
if (bytes == 0)
perror_with_name (local_file);
}
}
static void
-remote_put_command (char *args, int from_tty)
+remote_put_command (const char *args, int from_tty)
{
- struct cleanup *back_to;
- char **argv;
-
if (args == NULL)
error_no_arg (_("file to put"));
- argv = gdb_buildargv (args);
- back_to = make_cleanup_freeargv (argv);
+ gdb_argv argv (args);
if (argv[0] == NULL || argv[1] == NULL || argv[2] != NULL)
error (_("Invalid parameters to remote put"));
remote_file_put (argv[0], argv[1], from_tty);
-
- do_cleanups (back_to);
}
static void
-remote_get_command (char *args, int from_tty)
+remote_get_command (const char *args, int from_tty)
{
- struct cleanup *back_to;
- char **argv;
-
if (args == NULL)
error_no_arg (_("file to get"));
- argv = gdb_buildargv (args);
- back_to = make_cleanup_freeargv (argv);
+ gdb_argv argv (args);
if (argv[0] == NULL || argv[1] == NULL || argv[2] != NULL)
error (_("Invalid parameters to remote get"));
remote_file_get (argv[0], argv[1], from_tty);
-
- do_cleanups (back_to);
}
static void
-remote_delete_command (char *args, int from_tty)
+remote_delete_command (const char *args, int from_tty)
{
- struct cleanup *back_to;
- char **argv;
-
if (args == NULL)
error_no_arg (_("file to delete"));
- argv = gdb_buildargv (args);
- back_to = make_cleanup_freeargv (argv);
+ gdb_argv argv (args);
if (argv[0] == NULL || argv[1] != NULL)
error (_("Invalid parameters to remote delete"));
remote_file_delete (argv[0], from_tty);
-
- do_cleanups (back_to);
}
static void
-remote_command (char *args, int from_tty)
+remote_command (const char *args, int from_tty)
{
help_list (remote_cmdlist, "remote ", all_commands, gdb_stdout);
}
static void
remote_trace_init (struct target_ops *self)
{
+ struct remote_state *rs = get_remote_state ();
+
putpkt ("QTinit");
- remote_get_noisy_reply (&target_buf, &target_buf_size);
- if (strcmp (target_buf, "OK") != 0)
+ remote_get_noisy_reply ();
+ if (strcmp (rs->buf, "OK") != 0)
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. */
rs->buf + strlen (rs->buf),
rs->buf_size - strlen (rs->buf));
putpkt (rs->buf);
- remote_get_noisy_reply (&target_buf, &target_buf_size);
- if (strcmp (target_buf, "OK"))
+ remote_get_noisy_reply ();
+ if (strcmp (rs->buf, "OK"))
warning (_("Target does not support source download."));
if (cmd->control_type == while_control
rs->buf + strlen (rs->buf),
rs->buf_size - strlen (rs->buf));
putpkt (rs->buf);
- remote_get_noisy_reply (&target_buf, &target_buf_size);
- if (strcmp (target_buf, "OK"))
+ remote_get_noisy_reply ();
+ if (strcmp (rs->buf, "OK"))
warning (_("Target does not support source download."));
}
}
CORE_ADDR tpaddr;
char addrbuf[40];
char buf[BUF_SIZE];
- char **tdp_actions;
- char **stepping_actions;
- int ndx;
- struct cleanup *old_chain = NULL;
- struct agent_expr *aexpr;
- struct cleanup *aexpr_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);
capabilities at definition time. */
if (remote_supports_cond_tracepoints ())
{
- aexpr = gen_eval_for_expr (tpaddr, loc->cond);
- aexpr_chain = make_cleanup_free_agent_expr (aexpr);
+ 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);
- 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';
- do_cleanups (aexpr_chain);
}
else
warning (_("Target does not support conditional tracepoints, "
if (b->commands || *default_collect)
strcat (buf, "-");
putpkt (buf);
- remote_get_noisy_reply (&target_buf, &target_buf_size);
- if (strcmp (target_buf, "OK"))
+ remote_get_noisy_reply ();
+ if (strcmp (rs->buf, "OK"))
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 (&target_buf,
- &target_buf_size);
- if (strcmp (target_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 (&target_buf,
- &target_buf_size);
- if (strcmp (target_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)
{
strcpy (buf, "QTDPsrc:");
encode_source_string (b->number, loc->address, "at",
- event_location_to_string (b->location),
+ event_location_to_string (b->location.get ()),
buf + strlen (buf), 2048 - strlen (buf));
putpkt (buf);
- remote_get_noisy_reply (&target_buf, &target_buf_size);
- if (strcmp (target_buf, "OK"))
+ remote_get_noisy_reply ();
+ if (strcmp (rs->buf, "OK"))
warning (_("Target does not support source download."));
}
if (b->cond_string)
"cond", b->cond_string, buf + strlen (buf),
2048 - strlen (buf));
putpkt (buf);
- remote_get_noisy_reply (&target_buf, &target_buf_size);
- if (strcmp (target_buf, "OK"))
+ remote_get_noisy_reply ();
+ if (strcmp (rs->buf, "OK"))
warning (_("Target does not support source download."));
}
remote_download_command_source (b->number, loc->address,
breakpoint_commands (b));
}
-
- do_cleanups (old_chain);
}
static int
p += 2 * bin2hex ((gdb_byte *) (tsv->name), p, strlen (tsv->name));
*p++ = '\0';
putpkt (rs->buf);
- remote_get_noisy_reply (&target_buf, &target_buf_size);
- if (*target_buf == '\0')
+ remote_get_noisy_reply ();
+ if (*rs->buf == '\0')
error (_("Target does not support this command."));
- if (strcmp (target_buf, "OK") != 0)
+ if (strcmp (rs->buf, "OK") != 0)
error (_("Error on target while downloading trace state variable."));
}
xsnprintf (rs->buf, get_remote_packet_size (), "QTEnable:%x:%s",
location->owner->number, addr_buf);
putpkt (rs->buf);
- remote_get_noisy_reply (&rs->buf, &rs->buf_size);
+ remote_get_noisy_reply ();
if (*rs->buf == '\0')
error (_("Target does not support enabling tracepoints while a trace run is ongoing."));
if (strcmp (rs->buf, "OK") != 0)
xsnprintf (rs->buf, get_remote_packet_size (), "QTDisable:%x:%s",
location->owner->number, addr_buf);
putpkt (rs->buf);
- remote_get_noisy_reply (&rs->buf, &rs->buf_size);
+ remote_get_noisy_reply ();
if (*rs->buf == '\0')
error (_("Target does not support disabling tracepoints while a trace run is ongoing."));
if (strcmp (rs->buf, "OK") != 0)
if (!exec_bfd)
return; /* No information to give. */
- strcpy (target_buf, "QTro");
- offset = strlen (target_buf);
+ struct remote_state *rs = get_remote_state ();
+
+ strcpy (rs->buf, "QTro");
+ offset = strlen (rs->buf);
for (s = exec_bfd->sections; s; s = s->next)
{
char tmp1[40], tmp2[40];
sprintf_vma (tmp1, vma);
sprintf_vma (tmp2, vma + size);
sec_length = 1 + strlen (tmp1) + 1 + strlen (tmp2);
- if (offset + sec_length + 1 > target_buf_size)
+ if (offset + sec_length + 1 > rs->buf_size)
{
if (packet_support (PACKET_qXfer_traceframe_info) != PACKET_ENABLE)
warning (_("\
Too many sections for read-only sections definition packet."));
break;
}
- xsnprintf (target_buf + offset, target_buf_size - offset, ":%s,%s",
+ xsnprintf (rs->buf + offset, rs->buf_size - offset, ":%s,%s",
tmp1, tmp2);
offset += sec_length;
}
if (anysecs)
{
- putpkt (target_buf);
- getpkt (&target_buf, &target_buf_size, 0);
+ putpkt (rs->buf);
+ getpkt (&rs->buf, &rs->buf_size, 0);
}
}
static void
remote_trace_start (struct target_ops *self)
{
+ struct remote_state *rs = get_remote_state ();
+
putpkt ("QTStart");
- remote_get_noisy_reply (&target_buf, &target_buf_size);
- if (*target_buf == '\0')
+ remote_get_noisy_reply ();
+ if (*rs->buf == '\0')
error (_("Target does not support this command."));
- if (strcmp (target_buf, "OK") != 0)
- error (_("Bogus reply from target: %s"), target_buf);
+ if (strcmp (rs->buf, "OK") != 0)
+ error (_("Bogus reply from target: %s"), rs->buf);
}
static int
/* FIXME we need to get register block size some other way. */
extern int trace_regblock_size;
enum packet_result result;
+ struct remote_state *rs = get_remote_state ();
if (packet_support (PACKET_qTStatus) == PACKET_DISABLE)
return -1;
- trace_regblock_size = get_remote_arch_state ()->sizeof_g_packet;
+ trace_regblock_size
+ = get_remote_arch_state (target_gdbarch ())->sizeof_g_packet;
putpkt ("qTStatus");
TRY
{
- p = remote_get_noisy_reply (&target_buf, &target_buf_size);
+ p = remote_get_noisy_reply ();
}
CATCH (ex, RETURN_MASK_ERROR)
{
ts->filename = NULL;
if (*p++ != 'T')
- error (_("Bogus trace status reply from target: %s"), target_buf);
+ error (_("Bogus trace status reply from target: %s"), rs->buf);
/* Function 'parse_trace_status' sets default value of each field of
'ts' at first, so we don't have to do it here. */
if (tp)
{
- tp->base.hit_count = 0;
+ tp->hit_count = 0;
tp->traceframe_usage = 0;
- for (loc = tp->base.loc; loc; loc = loc->next)
+ for (loc = tp->loc; loc; loc = loc->next)
{
/* If the tracepoint was never downloaded, don't go asking for
any status. */
xsnprintf (rs->buf, size, "qTP:%x:%s", tp->number_on_target,
phex_nz (loc->address, 0));
putpkt (rs->buf);
- reply = remote_get_noisy_reply (&target_buf, &target_buf_size);
+ reply = remote_get_noisy_reply ();
if (reply && *reply)
{
if (*reply == 'V')
xsnprintf (rs->buf, size, "qTP:%x:%s", utp->number,
phex_nz (utp->addr, 0));
putpkt (rs->buf);
- reply = remote_get_noisy_reply (&target_buf, &target_buf_size);
+ reply = remote_get_noisy_reply ();
if (reply && *reply)
{
if (*reply == 'V')
static void
remote_trace_stop (struct target_ops *self)
{
+ struct remote_state *rs = get_remote_state ();
+
putpkt ("QTStop");
- remote_get_noisy_reply (&target_buf, &target_buf_size);
- if (*target_buf == '\0')
+ remote_get_noisy_reply ();
+ if (*rs->buf == '\0')
error (_("Target does not support this command."));
- if (strcmp (target_buf, "OK") != 0)
- error (_("Bogus reply from target: %s"), target_buf);
+ if (strcmp (rs->buf, "OK") != 0)
+ error (_("Bogus reply from target: %s"), rs->buf);
}
static int
}
putpkt (rs->buf);
- reply = remote_get_noisy_reply (&(rs->buf), &rs->buf_size);
+ reply = remote_get_noisy_reply ();
if (*reply == '\0')
error (_("Target does not support this command."));
xsnprintf (rs->buf, get_remote_packet_size (), "qTV:%x", tsvnum);
putpkt (rs->buf);
- reply = remote_get_noisy_reply (&target_buf, &target_buf_size);
+ reply = remote_get_noisy_reply ();
if (reply && *reply)
{
if (*reply == 'V')
p += 2 * bin2hex ((gdb_byte *) filename, p, strlen (filename));
*p++ = '\0';
putpkt (rs->buf);
- reply = remote_get_noisy_reply (&target_buf, &target_buf_size);
+ reply = remote_get_noisy_reply ();
if (*reply == '\0')
error (_("Target does not support this command."));
if (strcmp (reply, "OK") != 0)
*p++ = '\0';
putpkt (rs->buf);
- reply = remote_get_noisy_reply (&target_buf, &target_buf_size);
+ reply = remote_get_noisy_reply ();
if (reply && *reply)
{
/* 'l' by itself means we're at the end of the buffer and
what was returned in the packet; if the target is
unexpectedly generous and gives us a bigger reply than we
asked for, we don't want to crash. */
- rslt = hex2bin (target_buf, buf, len);
+ rslt = hex2bin (reply, buf, len);
return rslt;
}
xsnprintf (rs->buf, get_remote_packet_size (), "QTDisconnected:%x", val);
putpkt (rs->buf);
- reply = remote_get_noisy_reply (&target_buf, &target_buf_size);
+ reply = remote_get_noisy_reply ();
if (*reply == '\0')
error (_("Target does not support this command."));
if (strcmp (reply, "OK") != 0)
{
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;
}
xsnprintf (rs->buf, get_remote_packet_size (), "QTBuffer:circular:%x", val);
putpkt (rs->buf);
- reply = remote_get_noisy_reply (&target_buf, &target_buf_size);
+ reply = remote_get_noisy_reply ();
if (*reply == '\0')
error (_("Target does not support this command."));
if (strcmp (reply, "OK") != 0)
error (_("Bogus reply from target: %s"), reply);
}
-static struct traceframe_info *
+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 traceframe_info *info;
- struct cleanup *back_to = make_cleanup (xfree, text);
-
- info = parse_traceframe_info (text);
- do_cleanups (back_to);
- return info;
- }
+ return parse_traceframe_info (text.get ());
return NULL;
}
xsnprintf (rs->buf, get_remote_packet_size (), "qTMinFTPILen");
putpkt (rs->buf);
- reply = remote_get_noisy_reply (&target_buf, &target_buf_size);
+ reply = remote_get_noisy_reply ();
if (*reply == '\0')
return -1;
else
buf += hexnumstr (buf, (ULONGEST) val);
putpkt (rs->buf);
- remote_get_noisy_reply (&rs->buf, &rs->buf_size);
+ remote_get_noisy_reply ();
result = packet_ok (rs->buf,
&remote_protocol_packets[PACKET_QTBuffer_size]);
*buf = '\0';
putpkt (rs->buf);
- reply = remote_get_noisy_reply (&target_buf, &target_buf_size);
+ reply = remote_get_noisy_reply ();
if (*reply == '\0')
return 0;
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)
+ parse_xml_btrace_conf (conf, xml.get ());
+}
+
+/* Maybe reopen target btrace. */
+
+static void
+remote_btrace_maybe_reopen (void)
+{
+ struct remote_state *rs = get_remote_state ();
+ struct thread_info *tp;
+ int btrace_target_pushed = 0;
+ int warned = 0;
+
+ scoped_restore_current_thread restore_thread;
+
+ ALL_NON_EXITED_THREADS (tp)
{
- struct cleanup *cleanup;
+ set_general_thread (tp->ptid);
+
+ memset (&rs->btrace_config, 0x00, sizeof (struct btrace_config));
+ btrace_read_config (&rs->btrace_config);
+
+ if (rs->btrace_config.format == BTRACE_FORMAT_NONE)
+ continue;
+
+#if !defined (HAVE_LIBIPT)
+ if (rs->btrace_config.format == BTRACE_FORMAT_PT)
+ {
+ if (!warned)
+ {
+ warned = 1;
+ warning (_("GDB does not support Intel Processor Trace. "
+ "\"record\" will not work in this session."));
+ }
+
+ continue;
+ }
+#endif /* !defined (HAVE_LIBIPT) */
- cleanup = make_cleanup (xfree, xml);
- parse_xml_btrace_conf (conf, xml);
- do_cleanups (cleanup);
+ /* Push target, once, but before anything else happens. This way our
+ changes to the threads will be cleaned up by unpushing the target
+ in case btrace_read_config () throws. */
+ if (!btrace_target_pushed)
+ {
+ btrace_target_pushed = 1;
+ record_btrace_push_target ();
+ printf_filtered (_("Target is recording using %s.\n"),
+ btrace_format_string (rs->btrace_config.format));
+ }
+
+ tp->btrace.target = XCNEW (struct btrace_target_info);
+ tp->btrace.target->ptid = tp->ptid;
+ tp->btrace.target->conf = rs->btrace_config;
}
}
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. */
return rs->last_resume_exec_dir;
}
+/* Return pointer to the thread_info struct which corresponds to
+ THREAD_HANDLE (having length HANDLE_LEN). */
+
+static struct thread_info *
+remote_thread_handle_to_thread_info (struct target_ops *ops,
+ const gdb_byte *thread_handle,
+ int handle_len,
+ struct inferior *inf)
+{
+ struct thread_info *tp;
+
+ ALL_NON_EXITED_THREADS (tp)
+ {
+ remote_thread_info *priv = get_remote_thread_info (tp);
+
+ if (tp->inf == inf && priv != NULL)
+ {
+ 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) == 0)
+ return tp;
+ }
+ }
+
+ return NULL;
+}
+
static void
init_remote_ops (void)
{
remote_ops.to_detach = remote_detach;
remote_ops.to_disconnect = remote_disconnect;
remote_ops.to_resume = remote_resume;
+ remote_ops.to_commit_resume = remote_commit_resume;
remote_ops.to_wait = remote_wait;
remote_ops.to_fetch_registers = remote_fetch_registers;
remote_ops.to_store_registers = remote_store_registers;
remote_ops.to_interrupt = remote_interrupt;
remote_ops.to_pass_ctrlc = remote_pass_ctrlc;
remote_ops.to_xfer_partial = remote_xfer_partial;
+ remote_ops.to_get_memory_xfer_limit = remote_get_memory_xfer_limit;
remote_ops.to_rcmd = remote_rcmd;
remote_ops.to_pid_to_exec_file = remote_pid_to_exec_file;
remote_ops.to_log_command = serial_log_command;
remote_ops.to_insert_exec_catchpoint = remote_insert_exec_catchpoint;
remote_ops.to_remove_exec_catchpoint = remote_remove_exec_catchpoint;
remote_ops.to_execution_direction = remote_execution_direction;
+ remote_ops.to_thread_handle_to_thread_info =
+ remote_thread_handle_to_thread_info;
}
/* Set up the extended remote vector by making a copy of the standard
{
struct remote_state *rs = get_remote_state ();
+ /* We don't go async if the user has explicitly prevented it with the
+ "maint set target-async" command. */
if (!target_async_permitted)
- /* We only enable async when the user specifically asks for it. */
return 0;
/* We're async whenever the serial device is. */
}
static void
-set_remote_cmd (char *args, int from_tty)
+set_remote_cmd (const char *args, int from_tty)
{
help_list (remote_set_cmdlist, "set remote ", all_commands, gdb_stdout);
}
static void
-show_remote_cmd (char *args, int from_tty)
+show_remote_cmd (const char *args, int from_tty)
{
/* We can't just use cmd_show_list here, because we want to skip
the redundant "show remote Z-packet" and the legacy aliases. */
- struct cleanup *showlist_chain;
struct cmd_list_element *list = remote_show_cmdlist;
struct ui_out *uiout = current_uiout;
- showlist_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "showlist");
+ ui_out_emit_tuple tuple_emitter (uiout, "showlist");
for (; list != NULL; list = list->next)
if (strcmp (list->name, "Z-packet") == 0)
continue;
continue;
else
{
- struct cleanup *option_chain
- = make_cleanup_ui_out_tuple_begin_end (uiout, "option");
+ ui_out_emit_tuple option_emitter (uiout, "option");
- ui_out_field_string (uiout, "name", list->name);
- ui_out_text (uiout, ": ");
+ uiout->field_string ("name", list->name);
+ uiout->text (": ");
if (list->type == show_cmd)
- do_show_command ((char *) NULL, from_tty, list);
+ do_show_command (NULL, from_tty, list);
else
cmd_func (list, NULL, from_tty);
- /* Close the tuple. */
- do_cleanups (option_chain);
}
-
- /* Close the tuple. */
- do_cleanups (showlist_chain);
}
/* 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 ();
add_packet_config_cmd (&remote_protocol_packets[PACKET_QProgramSignals],
"QProgramSignals", "program-signals", 0);
+ add_packet_config_cmd (&remote_protocol_packets[PACKET_QSetWorkingDir],
+ "QSetWorkingDir", "set-working-dir", 0);
+
+ add_packet_config_cmd (&remote_protocol_packets[PACKET_QStartupWithShell],
+ "QStartupWithShell", "startup-with-shell", 0);
+
+ add_packet_config_cmd (&remote_protocol_packets
+ [PACKET_QEnvironmentHexEncoded],
+ "QEnvironmentHexEncoded", "environment-hex-encoded",
+ 0);
+
+ add_packet_config_cmd (&remote_protocol_packets[PACKET_QEnvironmentReset],
+ "QEnvironmentReset", "environment-reset",
+ 0);
+
+ add_packet_config_cmd (&remote_protocol_packets[PACKET_QEnvironmentUnset],
+ "QEnvironmentUnset", "environment-unset",
+ 0);
+
add_packet_config_cmd (&remote_protocol_packets[PACKET_qSymbol],
"qSymbol", "symbol-lookup", 0);
magic_null_ptid = ptid_build (42000, -1, 1);
not_sent_ptid = ptid_build (42000, -2, 1);
any_thread_ptid = ptid_build (42000, 0, 1);
-
- target_buf_size = 2048;
- target_buf = (char *) xmalloc (target_buf_size);
}
-
projects / thirdparty / binutils-gdb.git / blobdiff