/* Remote target communications for serial-line targets in custom GDB protocol
- Copyright (C) 1988-2018 Free Software Foundation, Inc.
+ Copyright (C) 1988-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "bfd.h"
#include "symfile.h"
#include "target.h"
-/*#include "terminal.h" */
+#include "process-stratum-target.h"
#include "gdbcmd.h"
#include "objfiles.h"
#include "gdb-stabs.h"
#include "cli/cli-setshow.h"
#include "target-descriptions.h"
#include "gdb_bfd.h"
-#include "filestuff.h"
-#include "rsp-low.h"
+#include "gdbsupport/filestuff.h"
+#include "gdbsupport/rsp-low.h"
#include "disasm.h"
#include "location.h"
-#include "gdb_sys_time.h"
+#include "gdbsupport/gdb_sys_time.h"
#include "event-loop.h"
#include "event-top.h"
#include "tracepoint.h"
#include "ax.h"
#include "ax-gdb.h"
-#include "agent.h"
+#include "gdbsupport/agent.h"
#include "btrace.h"
#include "record-btrace.h"
#include <algorithm>
-#include "common/scoped_restore.h"
-#include "environ.h"
-#include "common/byte-vector.h"
+#include "gdbsupport/scoped_restore.h"
+#include "gdbsupport/environ.h"
+#include "gdbsupport/byte-vector.h"
+#include <algorithm>
#include <unordered_map>
/* The remote target. */
struct packet_reg;
struct stop_reply;
-typedef struct stop_reply *stop_reply_p;
-
-DECLARE_QUEUE_P (stop_reply_p);
-DEFINE_QUEUE_P (stop_reply_p);
+typedef std::unique_ptr<stop_reply> stop_reply_up;
/* Generic configuration support for packets the stub optionally
supports. Allows the user to specify the use of the packet as well
};
struct threads_listing_context;
-struct remote_state;
+
+/* Stub vCont actions support.
+
+ Each field is a boolean flag indicating whether the stub reports
+ support for the corresponding action. */
+
+struct vCont_action_support
+{
+ /* vCont;t */
+ bool t = false;
+
+ /* vCont;r */
+ bool r = false;
+
+ /* vCont;s */
+ bool s = false;
+
+ /* vCont;S */
+ bool S = false;
+};
+
+/* About this many threadids fit in a packet. */
+
+#define MAXTHREADLISTRESULTS 32
+
+/* Data for the vFile:pread readahead cache. */
+
+struct readahead_cache
+{
+ /* Invalidate the readahead cache. */
+ void invalidate ();
+
+ /* Invalidate the readahead cache if it is holding data for FD. */
+ void invalidate_fd (int fd);
+
+ /* Serve pread from the readahead cache. Returns number of bytes
+ read, or 0 if the request can't be served from the cache. */
+ int pread (int fd, gdb_byte *read_buf, size_t len, ULONGEST offset);
+
+ /* The file descriptor for the file that is being cached. -1 if the
+ cache is invalid. */
+ int fd = -1;
+
+ /* The offset into the file that the cache buffer corresponds
+ to. */
+ ULONGEST offset = 0;
+
+ /* The buffer holding the cache contents. */
+ gdb_byte *buf = nullptr;
+ /* The buffer's size. We try to read as much as fits into a packet
+ at a time. */
+ size_t bufsize = 0;
+
+ /* Cache hit and miss counters. */
+ ULONGEST hit_count = 0;
+ ULONGEST miss_count = 0;
+};
+
+/* Description of the remote protocol for a given architecture. */
+
+struct packet_reg
+{
+ long offset; /* Offset into G packet. */
+ long regnum; /* GDB's internal register number. */
+ LONGEST pnum; /* Remote protocol register number. */
+ int in_g_packet; /* Always part of G packet. */
+ /* long size in bytes; == register_size (target_gdbarch (), regnum);
+ at present. */
+ /* char *name; == gdbarch_register_name (target_gdbarch (), regnum);
+ at present. */
+};
+
+struct remote_arch_state
+{
+ explicit remote_arch_state (struct gdbarch *gdbarch);
+
+ /* Description of the remote protocol registers. */
+ long sizeof_g_packet;
+
+ /* Description of the remote protocol registers indexed by REGNUM
+ (making an array gdbarch_num_regs in size). */
+ std::unique_ptr<packet_reg[]> regs;
+
+ /* This is the size (in chars) of the first response to the ``g''
+ packet. It is used as a heuristic when determining the maximum
+ size of memory-read and memory-write packets. A target will
+ typically only reserve a buffer large enough to hold the ``g''
+ packet. The size does not include packet overhead (headers and
+ trailers). */
+ long actual_register_packet_size;
+
+ /* This is the maximum size (in chars) of a non read/write packet.
+ It is also used as a cap on the size of read/write packets. */
+ long remote_packet_size;
+};
+
+/* Description of the remote protocol state for the currently
+ connected target. This is per-target state, and independent of the
+ selected architecture. */
+
+class remote_state
+{
+public:
+
+ remote_state ();
+ ~remote_state ();
+
+ /* Get the remote arch state for GDBARCH. */
+ struct remote_arch_state *get_remote_arch_state (struct gdbarch *gdbarch);
+
+public: /* data */
+
+ /* A buffer to use for incoming packets, and its current size. The
+ buffer is grown dynamically for larger incoming packets.
+ Outgoing packets may also be constructed in this buffer.
+ The size of the buffer is always at least REMOTE_PACKET_SIZE;
+ REMOTE_PACKET_SIZE should be used to limit the length of outgoing
+ packets. */
+ gdb::char_vector buf;
+
+ /* True if we're going through initial connection setup (finding out
+ about the remote side's threads, relocating symbols, etc.). */
+ bool starting_up = false;
+
+ /* If we negotiated packet size explicitly (and thus can bypass
+ heuristics for the largest packet size that will not overflow
+ a buffer in the stub), this will be set to that packet size.
+ Otherwise zero, meaning to use the guessed size. */
+ long explicit_packet_size = 0;
+
+ /* remote_wait is normally called when the target is running and
+ waits for a stop reply packet. But sometimes we need to call it
+ when the target is already stopped. We can send a "?" packet
+ and have remote_wait read the response. Or, if we already have
+ the response, we can stash it in BUF and tell remote_wait to
+ skip calling getpkt. This flag is set when BUF contains a
+ stop reply packet and the target is not waiting. */
+ int cached_wait_status = 0;
+
+ /* True, if in no ack mode. That is, neither GDB nor the stub will
+ expect acks from each other. The connection is assumed to be
+ reliable. */
+ bool noack_mode = false;
+
+ /* True if we're connected in extended remote mode. */
+ bool extended = false;
+
+ /* True if we resumed the target and we're waiting for the target to
+ stop. In the mean time, we can't start another command/query.
+ The remote server wouldn't be ready to process it, so we'd
+ timeout waiting for a reply that would never come and eventually
+ we'd close the connection. This can happen in asynchronous mode
+ because we allow GDB commands while the target is running. */
+ bool waiting_for_stop_reply = false;
+
+ /* The status of the stub support for the various vCont actions. */
+ vCont_action_support supports_vCont;
+
+ /* True if the user has pressed Ctrl-C, but the target hasn't
+ responded to that. */
+ bool ctrlc_pending_p = false;
+
+ /* True if we saw a Ctrl-C while reading or writing from/to the
+ remote descriptor. At that point it is not safe to send a remote
+ interrupt packet, so we instead remember we saw the Ctrl-C and
+ process it once we're done with sending/receiving the current
+ packet, which should be shortly. If however that takes too long,
+ and the user presses Ctrl-C again, we offer to disconnect. */
+ bool got_ctrlc_during_io = false;
+
+ /* Descriptor for I/O to remote machine. Initialize it to NULL so that
+ remote_open knows that we don't have a file open when the program
+ starts. */
+ struct serial *remote_desc = nullptr;
+
+ /* These are the threads which we last sent to the remote system. The
+ TID member will be -1 for all or -2 for not sent yet. */
+ ptid_t general_thread = null_ptid;
+ ptid_t continue_thread = null_ptid;
+
+ /* This is the traceframe which we last selected on the remote system.
+ It will be -1 if no traceframe is selected. */
+ int remote_traceframe_number = -1;
+
+ char *last_pass_packet = nullptr;
+
+ /* The last QProgramSignals packet sent to the target. We bypass
+ sending a new program signals list down to the target if the new
+ packet is exactly the same as the last we sent. IOW, we only let
+ the target know about program signals list changes. */
+ char *last_program_signals_packet = nullptr;
+
+ gdb_signal last_sent_signal = GDB_SIGNAL_0;
+
+ bool last_sent_step = false;
+
+ /* The execution direction of the last resume we got. */
+ exec_direction_kind last_resume_exec_dir = EXEC_FORWARD;
+
+ char *finished_object = nullptr;
+ char *finished_annex = nullptr;
+ ULONGEST finished_offset = 0;
+
+ /* Should we try the 'ThreadInfo' query packet?
+
+ This variable (NOT available to the user: auto-detect only!)
+ determines whether GDB will use the new, simpler "ThreadInfo"
+ query or the older, more complex syntax for thread queries.
+ This is an auto-detect variable (set to true at each connect,
+ and set to false when the target fails to recognize it). */
+ bool use_threadinfo_query = false;
+ bool use_threadextra_query = false;
+
+ threadref echo_nextthread {};
+ threadref nextthread {};
+ threadref resultthreadlist[MAXTHREADLISTRESULTS] {};
+
+ /* The state of remote notification. */
+ struct remote_notif_state *notif_state = nullptr;
+
+ /* The branch trace configuration. */
+ struct btrace_config btrace_config {};
+
+ /* The argument to the last "vFile:setfs:" packet we sent, used
+ to avoid sending repeated unnecessary "vFile:setfs:" packets.
+ Initialized to -1 to indicate that no "vFile:setfs:" packet
+ has yet been sent. */
+ int fs_pid = -1;
+
+ /* A readahead cache for vFile:pread. Often, reading a binary
+ involves a sequence of small reads. E.g., when parsing an ELF
+ file. A readahead cache helps mostly the case of remote
+ debugging on a connection with higher latency, due to the
+ request/reply nature of the RSP. We only cache data for a single
+ file descriptor at a time. */
+ struct readahead_cache readahead_cache;
+
+ /* The list of already fetched and acknowledged stop events. This
+ queue is used for notification Stop, and other notifications
+ don't need queue for their events, because the notification
+ events of Stop can't be consumed immediately, so that events
+ should be queued first, and be consumed by remote_wait_{ns,as}
+ one per time. Other notifications can consume their events
+ immediately, so queue is not needed for them. */
+ std::vector<stop_reply_up> stop_reply_queue;
+
+ /* Asynchronous signal handle registered as event loop source for
+ when we have pending events ready to be passed to the core. */
+ struct async_event_handler *remote_async_inferior_event_token = nullptr;
+
+ /* FIXME: cagney/1999-09-23: Even though getpkt was called with
+ ``forever'' still use the normal timeout mechanism. This is
+ currently used by the ASYNC code to guarentee that target reads
+ during the initial connect always time-out. Once getpkt has been
+ modified to return a timeout indication and, in turn
+ remote_wait()/wait_for_inferior() have gained a timeout parameter
+ this can go away. */
+ int wait_forever_enabled_p = 1;
+
+private:
+ /* Mapping of remote protocol data for each gdbarch. Usually there
+ is only one entry here, though we may see more with stubs that
+ support multi-process. */
+ std::unordered_map<struct gdbarch *, remote_arch_state>
+ m_arch_states;
+};
static const target_info remote_target_info = {
"remote",
remote_doc
};
-class remote_target : public target_ops
+class remote_target : public process_stratum_target
{
public:
- remote_target ()
- {
- to_stratum = process_stratum;
- }
+ remote_target () = default;
~remote_target () override;
const target_info &info () const override
void mourn_inferior () override;
- void pass_signals (int, unsigned char *) override;
+ void pass_signals (gdb::array_view<const unsigned char>) override;
int set_syscall_catchpoint (int, bool, int,
gdb::array_view<const int>) override;
- void program_signals (int, unsigned char *) override;
+ void program_signals (gdb::array_view<const unsigned char>) override;
bool thread_alive (ptid_t ptid) override;
void update_thread_list () override;
- const char *pid_to_str (ptid_t) override;
+ std::string pid_to_str (ptid_t) override;
const char *extra_thread_info (struct thread_info *) override;
int handle_len,
inferior *inf) override;
+ gdb::byte_vector thread_info_to_thread_handle (struct thread_info *tp)
+ override;
+
void stop (ptid_t) override;
void interrupt () override;
CORE_ADDR load_module_addr,
CORE_ADDR offset) override;
- bool has_all_memory () override { return default_child_has_all_memory (); }
- bool has_memory () override { return default_child_has_memory (); }
- bool has_stack () override { return default_child_has_stack (); }
- bool has_registers () override { return default_child_has_registers (); }
- bool has_execution (ptid_t ptid) override { return default_child_has_execution (ptid); }
-
bool can_execute_reverse () override;
std::vector<mem_region> memory_map () override;
const struct btrace_config *btrace_conf (const struct btrace_target_info *) override;
bool augmented_libraries_svr4_read () override;
int follow_fork (int, int) override;
- void follow_exec (struct inferior *, char *) override;
+ void follow_exec (struct inferior *, const char *) override;
int insert_fork_catchpoint (int) override;
int remove_fork_catchpoint (int) override;
int insert_vfork_catchpoint (int) override;
ptid_t ptid);
static void open_1 (const char *name, int from_tty, int extended_p);
void start_remote (int from_tty, int extended_p);
- void remote_detach_1 (int from_tty, struct inferior *inf);
+ void remote_detach_1 (struct inferior *inf, int from_tty);
char *append_resumption (char *p, char *endp,
ptid_t ptid, int step, gdb_signal siggnal);
void process_initial_stop_replies (int from_tty);
- void remote_add_thread (ptid_t ptid, bool running, bool executing);
+ thread_info *remote_add_thread (ptid_t ptid, bool running, bool executing);
void btrace_sync_conf (const btrace_config *conf);
struct stop_reply *remote_notif_remove_queued_reply (ptid_t ptid);
struct stop_reply *queued_stop_reply (ptid_t ptid);
int peek_stop_reply (ptid_t ptid);
- void remote_parse_stop_reply (char *buf, stop_reply *event);
+ void remote_parse_stop_reply (const char *buf, stop_reply *event);
void remote_stop_ns (ptid_t ptid);
void remote_interrupt_as ();
char *remote_get_noisy_reply ();
int remote_query_attached (int pid);
- inferior *remote_add_inferior (int fake_pid_p, int pid, int attached,
+ inferior *remote_add_inferior (bool fake_pid_p, int pid, int attached,
int try_open_exec);
ptid_t remote_current_thread (ptid_t oldpid);
int putpkt (const char *buf);
int putpkt_binary (const char *buf, int cnt);
+ int putpkt (const gdb::char_vector &buf)
+ {
+ return putpkt (buf.data ());
+ }
+
void skip_frame ();
- long read_frame (char **buf_p, long *sizeof_buf);
- void getpkt (char **buf, long *sizeof_buf, int forever);
- int getpkt_or_notif_sane_1 (char **buf, long *sizeof_buf, int forever,
+ long read_frame (gdb::char_vector *buf_p);
+ void getpkt (gdb::char_vector *buf, int forever);
+ int getpkt_or_notif_sane_1 (gdb::char_vector *buf, int forever,
int expecting_notif, int *is_notif);
- int getpkt_sane (char **buf, long *sizeof_buf, int forever);
- int getpkt_or_notif_sane (char **buf, long *sizeof_buf, int forever,
+ int getpkt_sane (gdb::char_vector *buf, int forever);
+ int getpkt_or_notif_sane (gdb::char_vector *buf, int forever,
int *is_notif);
int remote_vkill (int pid);
void remote_kill_k ();
bool vcont_r_supported ();
- void packet_command (const char *args, int from_tty);
-
-private: /* data fields */
-
- std::unique_ptr<struct remote_state> m_remote_state;
-};
-
-static const target_info extended_remote_target_info = {
- "extended-remote",
- N_("Extended remote serial target in gdb-specific protocol"),
- remote_doc
-};
-
-/* Set up the extended remote target by extending the standard remote
- target and adding to it. */
-
-class extended_remote_target final : public remote_target
-{
-public:
- const target_info &info () const override
- { return extended_remote_target_info; }
-
- /* Open an extended-remote connection. */
- static void open (const char *, int);
-
- bool can_create_inferior () override { return true; }
- void create_inferior (const char *, const std::string &,
- char **, int) override;
-
- void detach (inferior *, int) override;
-
- bool can_attach () override { return true; }
- void attach (const char *, int) override;
-
- void post_attach (int) override;
- bool supports_disable_randomization () override;
-};
-
-/* Per-program-space data key. */
-static const struct program_space_data *remote_pspace_data;
-
-/* The variable registered as the control variable used by the
- remote exec-file commands. While the remote exec-file setting is
- per-program-space, the set/show machinery uses this as the
- location of the remote exec-file value. */
-static char *remote_exec_file_var;
-
-/* The size to align memory write packets, when practical. The protocol
- does not guarantee any alignment, and gdb will generate short
- writes and unaligned writes, but even as a best-effort attempt this
- can improve bulk transfers. For instance, if a write is misaligned
- relative to the target's data bus, the stub may need to make an extra
- round trip fetching data from the target. This doesn't make a
- huge difference, but it's easy to do, so we try to be helpful.
-
- The alignment chosen is arbitrary; usually data bus width is
- important here, not the possibly larger cache line size. */
-enum { REMOTE_ALIGN_WRITES = 16 };
-
-/* Prototypes for local functions. */
-
-static int hexnumlen (ULONGEST num);
-
-static int stubhex (int ch);
-
-static int hexnumstr (char *, ULONGEST);
-
-static int hexnumnstr (char *, ULONGEST, int);
-
-static CORE_ADDR remote_address_masked (CORE_ADDR);
-
-static void print_packet (const char *);
-
-static int stub_unpack_int (char *buff, int fieldlength);
-
-struct packet_config;
-
-static void show_packet_config_cmd (struct packet_config *config);
-
-static void show_remote_protocol_packet_cmd (struct ui_file *file,
- int from_tty,
- struct cmd_list_element *c,
- const char *value);
-
-static ptid_t read_ptid (const char *buf, const char **obuf);
-
-struct stop_reply;
-static void stop_reply_xfree (struct stop_reply *);
-
-static void remote_async_inferior_event_handler (gdb_client_data);
-
-static int remote_read_description_p (struct target_ops *target);
-
-static void remote_console_output (char *msg);
-
-static void remote_btrace_reset (remote_state *rs);
-
-static void remote_unpush_and_throw (void);
-
-/* For "remote". */
-
-static struct cmd_list_element *remote_cmdlist;
-
-/* For "set remote" and "show remote". */
-
-static struct cmd_list_element *remote_set_cmdlist;
-static struct cmd_list_element *remote_show_cmdlist;
-
-/* Stub vCont actions support.
-
- Each field is a boolean flag indicating whether the stub reports
- support for the corresponding action. */
-
-struct vCont_action_support
-{
- /* vCont;t */
- bool t = false;
-
- /* vCont;r */
- bool r = false;
-
- /* vCont;s */
- bool s = false;
-
- /* vCont;S */
- bool S = false;
-};
-
-/* Controls whether GDB is willing to use range stepping. */
-
-static int use_range_stepping = 1;
-
-/* About this many threadisds fit in a packet. */
-
-#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
-{
- /* Invalidate the readahead cache. */
- void invalidate ();
-
- /* Invalidate the readahead cache if it is holding data for FD. */
- void invalidate_fd (int fd);
-
- /* Serve pread from the readahead cache. Returns number of bytes
- read, or 0 if the request can't be served from the cache. */
- int pread (int fd, gdb_byte *read_buf, size_t len, ULONGEST offset);
-
- /* The file descriptor for the file that is being cached. -1 if the
- cache is invalid. */
- int fd = -1;
-
- /* The offset into the file that the cache buffer corresponds
- to. */
- ULONGEST offset = 0;
-
- /* The buffer holding the cache contents. */
- gdb_byte *buf = nullptr;
- /* The buffer's size. We try to read as much as fits into a packet
- at a time. */
- size_t bufsize = 0;
-
- /* Cache hit and miss counters. */
- ULONGEST hit_count = 0;
- ULONGEST miss_count = 0;
-};
-
-/* Description of the remote protocol for a given architecture. */
-
-struct packet_reg
-{
- long offset; /* Offset into G packet. */
- long regnum; /* GDB's internal register number. */
- LONGEST pnum; /* Remote protocol register number. */
- int in_g_packet; /* Always part of G packet. */
- /* long size in bytes; == register_size (target_gdbarch (), regnum);
- at present. */
- /* char *name; == gdbarch_register_name (target_gdbarch (), regnum);
- at present. */
-};
-
-struct remote_arch_state
-{
- explicit remote_arch_state (struct gdbarch *gdbarch);
-
- /* Description of the remote protocol registers. */
- long sizeof_g_packet;
-
- /* Description of the remote protocol registers indexed by REGNUM
- (making an array gdbarch_num_regs in size). */
- std::unique_ptr<packet_reg[]> regs;
-
- /* This is the size (in chars) of the first response to the ``g''
- packet. It is used as a heuristic when determining the maximum
- size of memory-read and memory-write packets. A target will
- typically only reserve a buffer large enough to hold the ``g''
- packet. The size does not include packet overhead (headers and
- trailers). */
- long actual_register_packet_size;
+ void packet_command (const char *args, int from_tty);
- /* This is the maximum size (in chars) of a non read/write packet.
- It is also used as a cap on the size of read/write packets. */
- long remote_packet_size;
+private: /* data fields */
+
+ /* The remote state. Don't reference this directly. Use the
+ get_remote_state method instead. */
+ remote_state m_remote_state;
};
-/* Description of the remote protocol state for the currently
- connected target. This is per-target state, and independent of the
- selected architecture. */
+static const target_info extended_remote_target_info = {
+ "extended-remote",
+ N_("Extended remote serial target in gdb-specific protocol"),
+ remote_doc
+};
-class remote_state
+/* Set up the extended remote target by extending the standard remote
+ target and adding to it. */
+
+class extended_remote_target final : public remote_target
{
public:
+ const target_info &info () const override
+ { return extended_remote_target_info; }
- remote_state ();
- ~remote_state ();
-
- /* Get the remote arch state for GDBARCH. */
- struct remote_arch_state *get_remote_arch_state (struct gdbarch *gdbarch);
+ /* Open an extended-remote connection. */
+ static void open (const char *, int);
-public: /* data */
+ bool can_create_inferior () override { return true; }
+ void create_inferior (const char *, const std::string &,
+ char **, int) override;
- /* A buffer to use for incoming packets, and its current size. The
- buffer is grown dynamically for larger incoming packets.
- Outgoing packets may also be constructed in this buffer.
- BUF_SIZE is always at least REMOTE_PACKET_SIZE;
- REMOTE_PACKET_SIZE should be used to limit the length of outgoing
- packets. */
- char *buf;
- long buf_size;
+ void detach (inferior *, int) override;
- /* True if we're going through initial connection setup (finding out
- about the remote side's threads, relocating symbols, etc.). */
- bool starting_up = false;
+ bool can_attach () override { return true; }
+ void attach (const char *, int) override;
- /* If we negotiated packet size explicitly (and thus can bypass
- heuristics for the largest packet size that will not overflow
- a buffer in the stub), this will be set to that packet size.
- Otherwise zero, meaning to use the guessed size. */
- long explicit_packet_size = 0;
+ void post_attach (int) override;
+ bool supports_disable_randomization () override;
+};
- /* remote_wait is normally called when the target is running and
- waits for a stop reply packet. But sometimes we need to call it
- when the target is already stopped. We can send a "?" packet
- and have remote_wait read the response. Or, if we already have
- the response, we can stash it in BUF and tell remote_wait to
- skip calling getpkt. This flag is set when BUF contains a
- stop reply packet and the target is not waiting. */
- int cached_wait_status = 0;
+/* Per-program-space data key. */
+static const struct program_space_key<char, gdb::xfree_deleter<char>>
+ remote_pspace_data;
- /* True, if in no ack mode. That is, neither GDB nor the stub will
- expect acks from each other. The connection is assumed to be
- reliable. */
- bool noack_mode = false;
+/* The variable registered as the control variable used by the
+ remote exec-file commands. While the remote exec-file setting is
+ per-program-space, the set/show machinery uses this as the
+ location of the remote exec-file value. */
+static char *remote_exec_file_var;
- /* True if we're connected in extended remote mode. */
- bool extended = false;
+/* The size to align memory write packets, when practical. The protocol
+ does not guarantee any alignment, and gdb will generate short
+ writes and unaligned writes, but even as a best-effort attempt this
+ can improve bulk transfers. For instance, if a write is misaligned
+ relative to the target's data bus, the stub may need to make an extra
+ round trip fetching data from the target. This doesn't make a
+ huge difference, but it's easy to do, so we try to be helpful.
- /* True if we resumed the target and we're waiting for the target to
- stop. In the mean time, we can't start another command/query.
- The remote server wouldn't be ready to process it, so we'd
- timeout waiting for a reply that would never come and eventually
- we'd close the connection. This can happen in asynchronous mode
- because we allow GDB commands while the target is running. */
- bool waiting_for_stop_reply = false;
+ The alignment chosen is arbitrary; usually data bus width is
+ important here, not the possibly larger cache line size. */
+enum { REMOTE_ALIGN_WRITES = 16 };
- /* The status of the stub support for the various vCont actions. */
- vCont_action_support supports_vCont;
+/* Prototypes for local functions. */
- /* True if the user has pressed Ctrl-C, but the target hasn't
- responded to that. */
- bool ctrlc_pending_p = false;
+static int hexnumlen (ULONGEST num);
- /* True if we saw a Ctrl-C while reading or writing from/to the
- remote descriptor. At that point it is not safe to send a remote
- interrupt packet, so we instead remember we saw the Ctrl-C and
- process it once we're done with sending/receiving the current
- packet, which should be shortly. If however that takes too long,
- and the user presses Ctrl-C again, we offer to disconnect. */
- bool got_ctrlc_during_io = false;
+static int stubhex (int ch);
- /* Descriptor for I/O to remote machine. Initialize it to NULL so that
- remote_open knows that we don't have a file open when the program
- starts. */
- struct serial *remote_desc = nullptr;
+static int hexnumstr (char *, ULONGEST);
- /* These are the threads which we last sent to the remote system. The
- TID member will be -1 for all or -2 for not sent yet. */
- ptid_t general_thread = null_ptid;
- ptid_t continue_thread = null_ptid;
+static int hexnumnstr (char *, ULONGEST, int);
- /* This is the traceframe which we last selected on the remote system.
- It will be -1 if no traceframe is selected. */
- int remote_traceframe_number = -1;
+static CORE_ADDR remote_address_masked (CORE_ADDR);
- char *last_pass_packet = nullptr;
+static void print_packet (const char *);
- /* The last QProgramSignals packet sent to the target. We bypass
- sending a new program signals list down to the target if the new
- packet is exactly the same as the last we sent. IOW, we only let
- the target know about program signals list changes. */
- char *last_program_signals_packet = nullptr;
+static int stub_unpack_int (char *buff, int fieldlength);
- gdb_signal last_sent_signal = GDB_SIGNAL_0;
+struct packet_config;
- bool last_sent_step = false;
+static void show_packet_config_cmd (struct packet_config *config);
- /* The execution direction of the last resume we got. */
- exec_direction_kind last_resume_exec_dir = EXEC_FORWARD;
+static void show_remote_protocol_packet_cmd (struct ui_file *file,
+ int from_tty,
+ struct cmd_list_element *c,
+ const char *value);
- char *finished_object = nullptr;
- char *finished_annex = nullptr;
- ULONGEST finished_offset = 0;
+static ptid_t read_ptid (const char *buf, const char **obuf);
- /* Should we try the 'ThreadInfo' query packet?
+static void remote_async_inferior_event_handler (gdb_client_data);
- This variable (NOT available to the user: auto-detect only!)
- determines whether GDB will use the new, simpler "ThreadInfo"
- query or the older, more complex syntax for thread queries.
- This is an auto-detect variable (set to true at each connect,
- and set to false when the target fails to recognize it). */
- bool use_threadinfo_query = false;
- bool use_threadextra_query = false;
+static bool remote_read_description_p (struct target_ops *target);
- threadref echo_nextthread {};
- threadref nextthread {};
- threadref resultthreadlist[MAXTHREADLISTRESULTS] {};
+static void remote_console_output (const char *msg);
- /* The state of remote notification. */
- struct remote_notif_state *notif_state = nullptr;
+static void remote_btrace_reset (remote_state *rs);
- /* The branch trace configuration. */
- struct btrace_config btrace_config {};
+static void remote_unpush_and_throw (void);
- /* The argument to the last "vFile:setfs:" packet we sent, used
- to avoid sending repeated unnecessary "vFile:setfs:" packets.
- Initialized to -1 to indicate that no "vFile:setfs:" packet
- has yet been sent. */
- int fs_pid = -1;
+/* For "remote". */
- /* A readahead cache for vFile:pread. Often, reading a binary
- involves a sequence of small reads. E.g., when parsing an ELF
- file. A readahead cache helps mostly the case of remote
- debugging on a connection with higher latency, due to the
- request/reply nature of the RSP. We only cache data for a single
- file descriptor at a time. */
- struct readahead_cache readahead_cache;
+static struct cmd_list_element *remote_cmdlist;
- /* The list of already fetched and acknowledged stop events. This
- queue is used for notification Stop, and other notifications
- don't need queue for their events, because the notification
- events of Stop can't be consumed immediately, so that events
- should be queued first, and be consumed by remote_wait_{ns,as}
- one per time. Other notifications can consume their events
- immediately, so queue is not needed for them. */
- QUEUE (stop_reply_p) *stop_reply_queue;
+/* For "set remote" and "show remote". */
- /* Asynchronous signal handle registered as event loop source for
- when we have pending events ready to be passed to the core. */
- struct async_event_handler *remote_async_inferior_event_token = nullptr;
+static struct cmd_list_element *remote_set_cmdlist;
+static struct cmd_list_element *remote_show_cmdlist;
- /* FIXME: cagney/1999-09-23: Even though getpkt was called with
- ``forever'' still use the normal timeout mechanism. This is
- currently used by the ASYNC code to guarentee that target reads
- during the initial connect always time-out. Once getpkt has been
- modified to return a timeout indication and, in turn
- remote_wait()/wait_for_inferior() have gained a timeout parameter
- this can go away. */
- int wait_forever_enabled_p = 1;
+/* Controls whether GDB is willing to use range stepping. */
-private:
- /* Mapping of remote protocol data for each gdbarch. Usually there
- is only one entry here, though we may see more with stubs that
- support multi-process. */
- std::unordered_map<struct gdbarch *, remote_arch_state>
- m_arch_states;
-};
+static bool use_range_stepping = true;
/* Private data that we'll store in (struct thread_info)->priv. */
struct remote_thread_info : public private_thread_info
};
remote_state::remote_state ()
+ : buf (400)
{
- /* The default buffer size is unimportant; it will be expanded
- whenever a larger buffer is needed. */
- this->buf_size = 400;
- this->buf = (char *) xmalloc (this->buf_size);
-
- this->stop_reply_queue = QUEUE_alloc (stop_reply_p, stop_reply_xfree);
}
remote_state::~remote_state ()
{
xfree (this->last_pass_packet);
xfree (this->last_program_signals_packet);
- xfree (this->buf);
xfree (this->finished_object);
xfree (this->finished_annex);
- QUEUE_free (stop_reply_p, this->stop_reply_queue);
}
/* Utility: generate error from an incoming stub packet. */
char *buf;
QUIT; /* Allow user to bail out with ^C. */
- getpkt (&rs->buf, &rs->buf_size, 0);
- buf = rs->buf;
+ getpkt (&rs->buf, 0);
+ buf = rs->buf.data ();
if (buf[0] == 'E')
trace_error (buf);
else if (startswith (buf, "qRelocInsn:"))
org_to = to;
- TRY
+ try
{
gdbarch_relocate_instruction (target_gdbarch (), &to, from);
relocated = 1;
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
if (ex.error == MEMORY_ERROR)
{
}
putpkt ("E01");
}
- END_CATCH
if (relocated)
{
adjusted_size = to - org_to;
- xsnprintf (buf, rs->buf_size, "qRelocInsn:%x", adjusted_size);
+ xsnprintf (buf, rs->buf.size (), "qRelocInsn:%x", adjusted_size);
putpkt (buf);
}
}
/* Make sure that the packet buffer is plenty big enough for
this architecture. */
- if (this->buf_size < rsa->remote_packet_size)
- {
- this->buf_size = 2 * rsa->remote_packet_size;
- this->buf = (char *) xrealloc (this->buf, this->buf_size);
- }
+ if (this->buf.size () < rsa->remote_packet_size)
+ this->buf.resize (2 * rsa->remote_packet_size);
}
else
rsa = &it->second;
remote_state *
remote_target::get_remote_state ()
{
- if (m_remote_state == nullptr)
- m_remote_state.reset (new remote_state ());
-
/* Make sure that the remote architecture state has been
initialized, because doing so might reallocate rs->buf. Any
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. */
- m_remote_state->get_remote_arch_state (target_gdbarch ());
-
- return m_remote_state.get ();
-}
-
-/* Cleanup routine for the remote module's pspace data. */
+ m_remote_state.get_remote_arch_state (target_gdbarch ());
-static void
-remote_pspace_data_cleanup (struct program_space *pspace, void *arg)
-{
- char *remote_exec_file = (char *) arg;
-
- xfree (remote_exec_file);
+ return &m_remote_state;
}
/* Fetch the remote exec-file from the current program space. */
{
char *remote_exec_file;
- remote_exec_file
- = (char *) program_space_data (current_program_space,
- remote_pspace_data);
+ remote_exec_file = remote_pspace_data.get (current_program_space);
if (remote_exec_file == NULL)
return "";
static void
set_pspace_remote_exec_file (struct program_space *pspace,
- char *remote_exec_file)
+ const char *remote_exec_file)
{
- char *old_file = (char *) program_space_data (pspace, remote_pspace_data);
+ char *old_file = remote_pspace_data.get (pspace);
xfree (old_file);
- set_program_space_data (pspace, remote_pspace_data,
- xstrdup (remote_exec_file));
+ remote_pspace_data.set (pspace, xstrdup (remote_exec_file));
}
/* The "set/show remote exec-file" set command hook. */
fprintf_filtered (file, "%s\n", remote_exec_file_var);
}
-static int
-compare_pnums (const void *lhs_, const void *rhs_)
-{
- const struct packet_reg * const *lhs
- = (const struct packet_reg * const *) lhs_;
- const struct packet_reg * const *rhs
- = (const struct packet_reg * const *) rhs_;
-
- if ((*lhs)->pnum < (*rhs)->pnum)
- return -1;
- else if ((*lhs)->pnum == (*rhs)->pnum)
- return 0;
- else
- return 1;
-}
-
static int
map_regcache_remote_table (struct gdbarch *gdbarch, struct packet_reg *regs)
{
if (regs[regnum].pnum != -1)
remote_regs[num_remote_regs++] = ®s[regnum];
- qsort (remote_regs, num_remote_regs, sizeof (struct packet_reg *),
- compare_pnums);
+ std::sort (remote_regs, remote_regs + num_remote_regs,
+ [] (const packet_reg *a, const packet_reg *b)
+ { return a->pnum < b->pnum; });
for (regnum = 0, offset = 0; regnum < num_remote_regs; regnum++)
{
to the remote target when gdb connects to it.
This is mostly needed when you debug the Linux kernel: The Linux kernel
expects BREAK g which is Magic SysRq g for connecting gdb. */
-static int interrupt_on_connect = 0;
+static bool interrupt_on_connect = false;
/* This variable is used to implement the "set/show remotebreak" commands.
Since these commands are now deprecated in favor of "set/show remote
interrupt-sequence", it no longer has any effect on the code. */
-static int remote_break;
+static bool remote_break;
static void
set_remotebreak (const char *args, int from_tty, struct cmd_list_element *c)
memory packets to ``host::sizeof long'' bytes - (typically 32
bits). Consequently, for 64 bit targets, the upper 32 bits of an
address was never sent. Since fixing this bug may cause a break in
- some remote targets this variable is principly provided to
+ some remote targets this variable is principally provided to
facilitate backward compatibility. */
static unsigned int remote_address_size;
/* Make sure there is room in the global buffer for this packet
(including its trailing NUL byte). */
- if (rs->buf_size < what_they_get + 1)
- {
- rs->buf_size = 2 * what_they_get;
- rs->buf = (char *) xrealloc (rs->buf, 2 * what_they_get);
- }
+ if (rs->buf.size () < what_they_get + 1)
+ rs->buf.resize (2 * what_they_get);
return what_they_get;
}
show_memory_packet_size (&memory_write_packet_config);
}
+/* Show the number of hardware watchpoints that can be used. */
+
+static void
+show_hardware_watchpoint_limit (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c,
+ const char *value)
+{
+ fprintf_filtered (file, _("The maximum number of target hardware "
+ "watchpoints is %s.\n"), value);
+}
+
+/* Show the length limit (in bytes) for hardware watchpoints. */
+
+static void
+show_hardware_watchpoint_length_limit (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c,
+ const char *value)
+{
+ fprintf_filtered (file, _("The maximum length (in bytes) of a target "
+ "hardware watchpoint is %s.\n"), value);
+}
+
+/* Show the number of hardware breakpoints that can be used. */
+
+static void
+show_hardware_breakpoint_limit (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c,
+ const char *value)
+{
+ fprintf_filtered (file, _("The maximum number of target hardware "
+ "breakpoints is %s.\n"), value);
+}
+
+/* Controls the maximum number of characters to display in the debug output
+ for each remote packet. The remaining characters are omitted. */
+
+static int remote_packet_max_chars = 512;
+
+/* Show the maximum number of characters to display for each remote packet
+ when remote debugging is enabled. */
+
+static void
+show_remote_packet_max_chars (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c,
+ const char *value)
+{
+ fprintf_filtered (file, _("Number of remote packet characters to "
+ "display is %s.\n"), value);
+}
+
long
remote_target::get_memory_write_packet_size ()
{
config->name = name;
config->title = title;
- set_doc = xstrprintf ("Set use of remote protocol `%s' (%s) packet",
+ set_doc = xstrprintf ("Set use of remote protocol `%s' (%s) packet.",
name, title);
show_doc = xstrprintf ("Show current use of remote "
- "protocol `%s' (%s) packet",
+ "protocol `%s' (%s) packet.",
name, title);
/* set/show TITLE-packet {auto,on,off} */
cmd_name = xstrprintf ("%s-packet", title);
if (buf[0] == 'E'
&& isxdigit (buf[1]) && isxdigit (buf[2])
&& buf[3] == '\0')
- /* "Enn" - definitly an error. */
+ /* "Enn" - definitely an error. */
return PACKET_ERROR;
/* Always treat "E." as an error. This will be used for
return PACKET_UNKNOWN;
}
+static enum packet_result
+packet_check_result (const gdb::char_vector &buf)
+{
+ return packet_check_result (buf.data ());
+}
+
static enum packet_result
packet_ok (const char *buf, struct packet_config *config)
{
return result;
}
+static enum packet_result
+packet_ok (const gdb::char_vector &buf, struct packet_config *config)
+{
+ return packet_ok (buf.data (), config);
+}
+
enum {
PACKET_vCont = 0,
PACKET_X,
PACKET_qXfer_libraries,
PACKET_qXfer_libraries_svr4,
PACKET_qXfer_memory_map,
- PACKET_qXfer_spu_read,
- PACKET_qXfer_spu_write,
PACKET_qXfer_osdata,
PACKET_qXfer_threads,
PACKET_qXfer_statictrace_read,
\f
-static ptid_t magic_null_ptid;
-static ptid_t not_sent_ptid;
-static ptid_t any_thread_ptid;
+/* Take advantage of the fact that the TID field is not used, to tag
+ special ptids with it set to != 0. */
+static const ptid_t magic_null_ptid (42000, -1, 1);
+static const ptid_t not_sent_ptid (42000, -2, 1);
+static const ptid_t any_thread_ptid (42000, 0, 1);
/* Find out if the stub attached to PID (and hence GDB should offer to
detach instead of killing it when bailing out). */
return 0;
if (remote_multi_process_p (rs))
- xsnprintf (rs->buf, size, "qAttached:%x", pid);
+ xsnprintf (rs->buf.data (), size, "qAttached:%x", pid);
else
- xsnprintf (rs->buf, size, "qAttached");
+ xsnprintf (rs->buf.data (), size, "qAttached");
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf,
&remote_protocol_packets[PACKET_qAttached]))
{
case PACKET_OK:
- if (strcmp (rs->buf, "1") == 0)
+ if (strcmp (rs->buf.data (), "1") == 0)
return 1;
break;
case PACKET_ERROR:
- warning (_("Remote failure reply: %s"), rs->buf);
+ warning (_("Remote failure reply: %s"), rs->buf.data ());
break;
case PACKET_UNKNOWN:
break;
if no main executable is open already. */
inferior *
-remote_target::remote_add_inferior (int fake_pid_p, int pid, int attached,
+remote_target::remote_add_inferior (bool fake_pid_p, int pid, int attached,
int try_open_exec)
{
struct inferior *inf;
}
static remote_thread_info *get_remote_thread_info (thread_info *thread);
+static remote_thread_info *get_remote_thread_info (ptid_t ptid);
/* Add thread PTID to GDB's thread list. Tag it as executing/running
according to RUNNING. */
-void
+thread_info *
remote_target::remote_add_thread (ptid_t ptid, bool running, bool executing)
{
struct remote_state *rs = get_remote_state ();
get_remote_thread_info (thread)->vcont_resumed = executing;
set_executing (ptid, executing);
set_running (ptid, running);
+
+ return thread;
}
/* Come here when we learn about a thread id from the remote target.
/* If this is a new thread, add it to GDB's thread list.
If we leave it up to WFI to do this, bad things will happen. */
- if (in_thread_list (currthread) && is_exited (currthread))
+ thread_info *tp = find_thread_ptid (currthread);
+ if (tp != NULL && tp->state == THREAD_EXITED)
{
/* We're seeing an event on a thread id we knew had exited.
This has to be a new thread reusing the old id. Add it. */
if (!in_thread_list (currthread))
{
struct inferior *inf = NULL;
- int pid = ptid_get_pid (currthread);
+ int pid = currthread.pid ();
- if (ptid_is_pid (inferior_ptid)
- && pid == ptid_get_pid (inferior_ptid))
+ if (inferior_ptid.is_pid ()
+ && pid == inferior_ptid.pid ())
{
/* inferior_ptid has no thread member yet. This can happen
with the vAttach -> remote_wait,"TAAthread:" path if the
stub doesn't support qC. This is the first stop reported
after an attach, so this is the main thread. Update the
ptid in the thread list. */
- if (in_thread_list (pid_to_ptid (pid)))
+ if (in_thread_list (ptid_t (pid)))
thread_change_ptid (inferior_ptid, currthread);
else
{
return;
}
- if (ptid_equal (magic_null_ptid, inferior_ptid))
+ if (magic_null_ptid == inferior_ptid)
{
/* inferior_ptid is not set yet. This can happen with the
vRun -> remote_wait,"TAAthread:" path if the stub
extended-remote which already was debugging an inferior, we
may not know about it yet. Add it before adding its child
thread, so notifications are emitted in a sensible order. */
- if (!in_inferior_list (ptid_get_pid (currthread)))
+ if (find_inferior_pid (currthread.pid ()) == NULL)
{
struct remote_state *rs = get_remote_state ();
- int fake_pid_p = !remote_multi_process_p (rs);
+ bool fake_pid_p = !remote_multi_process_p (rs);
inf = remote_add_inferior (fake_pid_p,
- ptid_get_pid (currthread), -1, 1);
+ currthread.pid (), -1, 1);
}
/* This is really a new thread. Add it. */
- remote_add_thread (currthread, running, executing);
+ thread_info *new_thr
+ = remote_add_thread (currthread, running, executing);
/* If we found a new inferior, let the common code do whatever
it needs to with it (e.g., read shared libraries, insert
struct remote_state *rs = get_remote_state ();
if (!rs->starting_up)
- notice_new_inferior (currthread, executing, 0);
+ notice_new_inferior (new_thr, executing, 0);
}
}
}
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 get_remote_thread_info (info);
+ thread_info *thr = find_thread_ptid (ptid);
+ return get_remote_thread_info (thr);
}
/* Call this function as a result of
it can simply pass through to the inferior without reporting. */
void
-remote_target::pass_signals (int numsigs, unsigned char *pass_signals)
+remote_target::pass_signals (gdb::array_view<const unsigned char> pass_signals)
{
if (packet_support (PACKET_QPassSignals) != PACKET_DISABLE)
{
char *pass_packet, *p;
- int count = 0, i;
+ int count = 0;
struct remote_state *rs = get_remote_state ();
- gdb_assert (numsigs < 256);
- for (i = 0; i < numsigs; i++)
+ gdb_assert (pass_signals.size () < 256);
+ for (size_t i = 0; i < pass_signals.size (); i++)
{
if (pass_signals[i])
count++;
pass_packet = (char *) xmalloc (count * 3 + strlen ("QPassSignals:") + 1);
strcpy (pass_packet, "QPassSignals:");
p = pass_packet + strlen (pass_packet);
- for (i = 0; i < numsigs; i++)
+ for (size_t i = 0; i < pass_signals.size (); i++)
{
if (pass_signals[i])
{
if (!rs->last_pass_packet || strcmp (rs->last_pass_packet, pass_packet))
{
putpkt (pass_packet);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
packet_ok (rs->buf, &remote_protocol_packets[PACKET_QPassSignals]);
if (rs->last_pass_packet)
xfree (rs->last_pass_packet);
struct remote_state *rs = get_remote_state ();
putpkt (catch_packet);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
result = packet_ok (rs->buf, &remote_protocol_packets[PACKET_QCatchSyscalls]);
if (result == PACKET_OK)
return 0;
signals it should pass through to the inferior when detaching. */
void
-remote_target::program_signals (int numsigs, unsigned char *signals)
+remote_target::program_signals (gdb::array_view<const unsigned char> signals)
{
if (packet_support (PACKET_QProgramSignals) != PACKET_DISABLE)
{
char *packet, *p;
- int count = 0, i;
+ int count = 0;
struct remote_state *rs = get_remote_state ();
- gdb_assert (numsigs < 256);
- for (i = 0; i < numsigs; i++)
+ gdb_assert (signals.size () < 256);
+ for (size_t i = 0; i < signals.size (); i++)
{
if (signals[i])
count++;
packet = (char *) xmalloc (count * 3 + strlen ("QProgramSignals:") + 1);
strcpy (packet, "QProgramSignals:");
p = packet + strlen (packet);
- for (i = 0; i < numsigs; i++)
+ for (size_t i = 0; i < signals.size (); i++)
{
if (signal_pass_state (i))
{
|| strcmp (rs->last_program_signals_packet, packet) != 0)
{
putpkt (packet);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
packet_ok (rs->buf, &remote_protocol_packets[PACKET_QProgramSignals]);
xfree (rs->last_program_signals_packet);
rs->last_program_signals_packet = packet;
{
struct remote_state *rs = get_remote_state ();
ptid_t state = gen ? rs->general_thread : rs->continue_thread;
- char *buf = rs->buf;
- char *endbuf = rs->buf + get_remote_packet_size ();
+ char *buf = rs->buf.data ();
+ char *endbuf = buf + get_remote_packet_size ();
- if (ptid_equal (state, ptid))
+ if (state == ptid)
return;
*buf++ = 'H';
*buf++ = gen ? 'g' : 'c';
- if (ptid_equal (ptid, magic_null_ptid))
+ if (ptid == magic_null_ptid)
xsnprintf (buf, endbuf - buf, "0");
- else if (ptid_equal (ptid, any_thread_ptid))
+ else if (ptid == any_thread_ptid)
xsnprintf (buf, endbuf - buf, "0");
- else if (ptid_equal (ptid, minus_one_ptid))
+ else if (ptid == minus_one_ptid)
xsnprintf (buf, endbuf - buf, "-1");
else
write_ptid (buf, endbuf, ptid);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (gen)
rs->general_thread = ptid;
else
/* We only need to change the remote current thread if it's pointing
at some other process. */
- if (ptid_get_pid (rs->general_thread) != ptid_get_pid (inferior_ptid))
+ if (rs->general_thread.pid () != inferior_ptid.pid ())
set_general_thread (inferior_ptid);
}
static int
remote_thread_always_alive (ptid_t ptid)
{
- if (ptid_equal (ptid, magic_null_ptid))
+ if (ptid == magic_null_ptid)
/* The main thread is always alive. */
return 1;
- if (ptid_get_pid (ptid) != 0 && ptid_get_lwp (ptid) == 0)
+ if (ptid.pid () != 0 && ptid.lwp () == 0)
/* The main thread is always alive. This can happen after a
vAttach, if the remote side doesn't support
multi-threading. */
if (remote_thread_always_alive (ptid))
return 1;
- p = rs->buf;
- endp = rs->buf + get_remote_packet_size ();
+ p = rs->buf.data ();
+ endp = p + get_remote_packet_size ();
*p++ = 'T';
write_ptid (p, endp, ptid);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
return (rs->buf[0] == 'O' && rs->buf[1] == 'K');
}
/* About these extended threadlist and threadinfo packets. They are
variable length packets but, the fields within them are often fixed
- length. They are redundent enough to send over UDP as is the
+ length. They are redundant enough to send over UDP as is the
remote protocol in general. There is a matching unit test module
in libstub. */
if (remote_multi_process_p (rs))
{
- pid = ptid_get_pid (ptid);
+ pid = ptid.pid ();
if (pid < 0)
buf += xsnprintf (buf, endbuf - buf, "p-%x.", -pid);
else
buf += xsnprintf (buf, endbuf - buf, "p%x.", pid);
}
- tid = ptid_get_lwp (ptid);
+ tid = ptid.lwp ();
if (tid < 0)
buf += xsnprintf (buf, endbuf - buf, "-%x", -tid);
else
pp = unpack_varlen_hex (p + 1, &tid);
if (obuf)
*obuf = pp;
- return ptid_build (pid, tid, 0);
+ return ptid_t (pid, tid, 0);
}
/* No multi-process. Just a tid. */
what's in inferior_ptid, unless it's null at this point. If so,
then since there's no way to know the pid of the reported
threads, use the magic number. */
- if (ptid_equal (inferior_ptid, null_ptid))
- pid = ptid_get_pid (magic_null_ptid);
+ if (inferior_ptid == null_ptid)
+ pid = magic_null_ptid.pid ();
else
- pid = ptid_get_pid (inferior_ptid);
+ pid = inferior_ptid.pid ();
if (obuf)
*obuf = pp;
- return ptid_build (pid, tid, 0);
+ return ptid_t (pid, tid, 0);
}
static int
int mask, length;
int tag;
threadref ref;
- char *limit = pkt + rs->buf_size; /* Plausible parsing limit. */
+ char *limit = pkt + rs->buf.size (); /* Plausible parsing limit. */
int retval = 1;
/* info->threadid = 0; FIXME: implement zero_threadref. */
}
copy_threadref (&info->threadid, &ref);
- /* Loop on tagged fields , try to bail if somthing goes wrong. */
+ /* Loop on tagged fields , try to bail if something goes wrong. */
/* Packets are terminated with nulls. */
while ((pkt < limit) && mask && *pkt)
struct remote_state *rs = get_remote_state ();
int result;
- pack_threadinfo_request (rs->buf, fieldset, threadid);
+ pack_threadinfo_request (rs->buf.data (), fieldset, threadid);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (rs->buf[0] == '\0')
return 0;
- result = remote_unpack_thread_info_response (rs->buf + 2,
+ result = remote_unpack_thread_info_response (&rs->buf[2],
threadid, info);
return result;
}
resultcount = 0;
/* Assume the 'q' and 'M chars have been stripped. */
- limit = pkt + (rs->buf_size - BUF_THREAD_ID_SIZE);
+ limit = pkt + (rs->buf.size () - BUF_THREAD_ID_SIZE);
/* done parse past here */
pkt = unpack_byte (pkt, &count); /* count field */
pkt = unpack_nibble (pkt, &done);
struct remote_state *rs = get_remote_state ();
int result = 1;
- /* Trancate result limit to be smaller than the packet size. */
+ /* Truncate result limit to be smaller than the packet size. */
if ((((result_limit + 1) * BUF_THREAD_ID_SIZE) + 10)
>= get_remote_packet_size ())
result_limit = (get_remote_packet_size () / BUF_THREAD_ID_SIZE) - 2;
- pack_threadlist_request (rs->buf, startflag, result_limit, nextthread);
+ pack_threadlist_request (rs->buf.data (), startflag, result_limit,
+ nextthread);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
- if (*rs->buf == '\0')
+ getpkt (&rs->buf, 0);
+ if (rs->buf[0] == '\0')
{
/* Packet not supported. */
return -1;
}
*result_count =
- parse_threadlist_response (rs->buf + 2, result_limit,
+ parse_threadlist_response (&rs->buf[2], result_limit,
&rs->echo_nextthread, threadlist, done);
if (!threadmatch (&rs->echo_nextthread, nextthread))
{
/* FIXME: This is a good reason to drop the packet. */
- /* Possably, there is a duplicate response. */
- /* Possabilities :
+ /* Possibly, there is a duplicate response. */
+ /* Possibilities :
retransmit immediatly - race conditions
retransmit after timeout - yes
exit
struct remote_state *rs = get_remote_state ();
putpkt ("qC");
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (rs->buf[0] == 'Q' && rs->buf[1] == 'C')
{
const char *obuf;
const char *bufp;
putpkt ("qfThreadInfo");
- getpkt (&rs->buf, &rs->buf_size, 0);
- bufp = rs->buf;
+ getpkt (&rs->buf, 0);
+ bufp = rs->buf.data ();
if (bufp[0] != '\0') /* q packet recognized */
{
while (*bufp++ == 'm') /* reply contains one or more TID */
}
while (*bufp++ == ','); /* comma-separated list */
putpkt ("qsThreadInfo");
- getpkt (&rs->buf, &rs->buf_size, 0);
- bufp = rs->buf;
+ getpkt (&rs->buf, 0);
+ bufp = rs->buf.data ();
}
return 1;
}
|| remote_get_threads_with_qthreadinfo (&context)
|| remote_get_threads_with_ql (&context))
{
- struct thread_info *tp, *tmp;
-
got_list = 1;
if (context.items.empty ()
/* CONTEXT now holds the current thread list on the remote
target end. Delete GDB-side threads no longer found on the
target. */
- ALL_THREADS_SAFE (tp, tmp)
+ for (thread_info *tp : all_threads_safe ())
{
if (!context.contains_thread (tp->ptid))
{
/* Not found. */
- delete_thread (tp->ptid);
+ delete_thread (tp);
}
}
remote_notice_new_inferior (item.ptid, executing);
- remote_thread_info *info = get_remote_thread_info (item.ptid);
+ thread_info *tp = find_thread_ptid (item.ptid);
+ remote_thread_info *info = get_remote_thread_info (tp);
info->core = item.core;
info->extra = std::move (item.extra);
info->name = std::move (item.name);
remote_target::extra_thread_info (thread_info *tp)
{
struct remote_state *rs = get_remote_state ();
- int result;
int set;
threadref id;
struct gdb_ext_thread_info threadinfo;
- static char display_buf[100]; /* arbitrary... */
- int n = 0; /* position in display_buf */
if (rs->remote_desc == 0) /* paranoia */
internal_error (__FILE__, __LINE__,
_("remote_threads_extra_info"));
- if (ptid_equal (tp->ptid, magic_null_ptid)
- || (ptid_get_pid (tp->ptid) != 0 && ptid_get_lwp (tp->ptid) == 0))
+ if (tp->ptid == magic_null_ptid
+ || (tp->ptid.pid () != 0 && tp->ptid.lwp () == 0))
/* This is the main thread which was added by GDB. The remote
server doesn't know about it. */
return NULL;
+ std::string &extra = get_remote_thread_info (tp)->extra;
+
+ /* If already have cached info, use it. */
+ if (!extra.empty ())
+ return extra.c_str ();
+
if (packet_support (PACKET_qXfer_threads) == PACKET_ENABLE)
{
- struct thread_info *info = find_thread_ptid (tp->ptid);
-
- 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;
+ /* If we're using qXfer:threads:read, then the extra info is
+ included in the XML. So if we didn't have anything cached,
+ it's because there's really no extra info. */
+ return NULL;
}
if (rs->use_threadextra_query)
{
- char *b = rs->buf;
- char *endb = rs->buf + get_remote_packet_size ();
+ char *b = rs->buf.data ();
+ char *endb = b + get_remote_packet_size ();
xsnprintf (b, endb - b, "qThreadExtraInfo,");
b += strlen (b);
write_ptid (b, endb, tp->ptid);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (rs->buf[0] != 0)
{
- 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;
+ extra.resize (strlen (rs->buf.data ()) / 2);
+ hex2bin (rs->buf.data (), (gdb_byte *) &extra[0], extra.size ());
+ return extra.c_str ();
}
}
rs->use_threadextra_query = 0;
set = TAG_THREADID | TAG_EXISTS | TAG_THREADNAME
| TAG_MOREDISPLAY | TAG_DISPLAY;
- int_to_threadref (&id, ptid_get_lwp (tp->ptid));
+ int_to_threadref (&id, tp->ptid.lwp ());
if (remote_get_threadinfo (&id, set, &threadinfo))
if (threadinfo.active)
{
if (*threadinfo.shortname)
- n += xsnprintf (&display_buf[0], sizeof (display_buf) - n,
- " Name: %s,", threadinfo.shortname);
+ string_appendf (extra, " Name: %s", threadinfo.shortname);
if (*threadinfo.display)
- n += xsnprintf (&display_buf[n], sizeof (display_buf) - n,
- " State: %s,", threadinfo.display);
+ {
+ if (!extra.empty ())
+ extra += ',';
+ string_appendf (extra, " State: %s", threadinfo.display);
+ }
if (*threadinfo.more_display)
- n += xsnprintf (&display_buf[n], sizeof (display_buf) - n,
- " Priority: %s", threadinfo.more_display);
-
- if (n > 0)
{
- /* For purely cosmetic reasons, clear up trailing commas. */
- if (',' == display_buf[n-1])
- display_buf[n-1] = ' ';
- return display_buf;
+ if (!extra.empty ())
+ extra += ',';
+ string_appendf (extra, " Priority: %s", threadinfo.more_display);
}
+ return extra.c_str ();
}
return NULL;
}
struct static_tracepoint_marker *marker)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
+ char *p = rs->buf.data ();
xsnprintf (p, get_remote_packet_size (), "qTSTMat:");
p += strlen (p);
p += hexnumstr (p, addr);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
- p = rs->buf;
+ getpkt (&rs->buf, 0);
+ p = rs->buf.data ();
if (*p == 'E')
error (_("Remote failure reply: %s"), p);
/* Ask for a first packet of static tracepoint marker
definition. */
putpkt ("qTfSTM");
- getpkt (&rs->buf, &rs->buf_size, 0);
- p = rs->buf;
+ getpkt (&rs->buf, 0);
+ p = rs->buf.data ();
if (*p == 'E')
error (_("Remote failure reply: %s"), p);
while (*p++ == ','); /* comma-separated list */
/* Ask for another packet of static tracepoint definition. */
putpkt ("qTsSTM");
- getpkt (&rs->buf, &rs->buf_size, 0);
- p = rs->buf;
+ getpkt (&rs->buf, 0);
+ p = rs->buf.data ();
}
return markers;
ptid_t
remote_target::get_ada_task_ptid (long lwp, long thread)
{
- return ptid_build (ptid_get_pid (inferior_ptid), lwp, 0);
+ return ptid_t (inferior_ptid.pid (), lwp, 0);
}
\f
/* Send the restart command; for reasons I don't understand the
remote side really expects a number after the "R". */
- xsnprintf (rs->buf, get_remote_packet_size (), "R%x", 0);
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "R%x", 0);
putpkt (rs->buf);
remote_fileio_reset ();
if (rs->remote_async_inferior_event_token)
delete_async_event_handler (&rs->remote_async_inferior_event_token);
- remote_notif_state_xfree (rs->notif_state);
+ delete rs->notif_state;
}
/* Query the remote side for the text, data and bss offsets. */
return;
putpkt ("qOffsets");
- getpkt (&rs->buf, &rs->buf_size, 0);
- buf = rs->buf;
+ getpkt (&rs->buf, 0);
+ buf = rs->buf.data ();
if (buf[0] == '\000')
return; /* Return silently. Stub doesn't support
this point. */
if (wait_status != NULL)
ptid = stop_reply_extract_thread (wait_status);
- if (ptid_equal (ptid, null_ptid))
+ if (ptid == null_ptid)
ptid = remote_current_thread (inferior_ptid);
return ptid;
remote_target::add_current_inferior_and_thread (char *wait_status)
{
struct remote_state *rs = get_remote_state ();
- int fake_pid_p = 0;
+ bool fake_pid_p = false;
inferior_ptid = null_ptid;
if (curr_ptid != null_ptid)
{
if (!remote_multi_process_p (rs))
- fake_pid_p = 1;
+ fake_pid_p = true;
}
else
{
double duty as both the pid of the target process (if it has
such), and as a flag indicating that a target is active. */
curr_ptid = magic_null_ptid;
- fake_pid_p = 1;
+ fake_pid_p = true;
}
- remote_add_inferior (fake_pid_p, ptid_get_pid (curr_ptid), -1, 1);
+ remote_add_inferior (fake_pid_p, curr_ptid.pid (), -1, 1);
/* Add the main thread and switch to it. Don't try reading
registers yet, since we haven't fetched the target description
{
struct target_waitstatus *ws = &thread->suspend.waitstatus;
- switch_to_thread (thread->ptid);
- stop_pc = get_frame_pc (get_current_frame ());
+ switch_to_thread (thread);
+ thread->suspend.stop_pc = get_frame_pc (get_current_frame ());
set_current_sal_from_frame (get_current_frame ());
thread->suspend.waitstatus_pending_p = 0;
remote_target::process_initial_stop_replies (int from_tty)
{
int pending_stop_replies = stop_reply_queue_length ();
- struct inferior *inf;
- struct thread_info *thread;
struct thread_info *selected = NULL;
struct thread_info *lowest_stopped = NULL;
struct thread_info *first = NULL;
ptid_t event_ptid;
struct target_waitstatus ws;
int ignore_event = 0;
- struct thread_info *thread;
memset (&ws, 0, sizeof (ws));
event_ptid = target_wait (waiton_ptid, &ws, TARGET_WNOHANG);
if (ignore_event)
continue;
- thread = find_thread_ptid (event_ptid);
+ struct thread_info *evthread = find_thread_ptid (event_ptid);
if (ws.kind == TARGET_WAITKIND_STOPPED)
{
instead of signal 0. Suppress it. */
if (sig == GDB_SIGNAL_TRAP)
sig = GDB_SIGNAL_0;
- thread->suspend.stop_signal = sig;
+ evthread->suspend.stop_signal = sig;
ws.value.sig = sig;
}
- thread->suspend.waitstatus = ws;
+ evthread->suspend.waitstatus = ws;
if (ws.kind != TARGET_WAITKIND_STOPPED
|| ws.value.sig != GDB_SIGNAL_0)
- thread->suspend.waitstatus_pending_p = 1;
+ evthread->suspend.waitstatus_pending_p = 1;
set_executing (event_ptid, 0);
set_running (event_ptid, 0);
- get_remote_thread_info (thread)->vcont_resumed = 0;
+ get_remote_thread_info (evthread)->vcont_resumed = 0;
}
/* "Notice" the new inferiors before anything related to
registers/memory. */
- ALL_INFERIORS (inf)
+ for (inferior *inf : all_non_exited_inferiors ())
{
- if (inf->pid == 0)
- continue;
-
inf->needs_setup = 1;
if (non_stop)
{
- thread = any_live_thread_of_process (inf->pid);
- notice_new_inferior (thread->ptid,
- thread->state == THREAD_RUNNING,
+ thread_info *thread = any_live_thread_of_inferior (inf);
+ notice_new_inferior (thread, thread->state == THREAD_RUNNING,
from_tty);
}
}
/* If all threads of an inferior were already stopped, we
haven't setup the inferior yet. */
- ALL_INFERIORS (inf)
+ for (inferior *inf : all_non_exited_inferiors ())
{
- if (inf->pid == 0)
- continue;
-
if (inf->needs_setup)
{
- thread = any_live_thread_of_process (inf->pid);
+ thread_info *thread = any_live_thread_of_inferior (inf);
switch_to_thread_no_regs (thread);
setup_inferior (0);
}
/* Now go over all threads that are stopped, and print their current
frame. If all-stop, then if there's a signalled thread, pick
that as current. */
- ALL_NON_EXITED_THREADS (thread)
+ for (thread_info *thread : all_non_exited_threads ())
{
if (first == NULL)
first = thread;
if (!non_stop)
- set_running (thread->ptid, 0);
+ thread->set_running (false);
else if (thread->state != THREAD_STOPPED)
continue;
others with their status pending. */
if (!non_stop)
{
- thread = selected;
+ thread_info *thread = selected;
if (thread == NULL)
thread = lowest_stopped;
if (thread == NULL)
}
/* For "info program". */
- thread = inferior_thread ();
+ thread_info *thread = inferior_thread ();
if (thread->state == THREAD_STOPPED)
set_last_target_status (inferior_ptid, thread->suspend.waitstatus);
}
const char v_mustreplyempty[] = "vMustReplyEmpty";
putpkt (v_mustreplyempty);
- getpkt (&rs->buf, &rs->buf_size, 0);
- if (strcmp (rs->buf, "OK") == 0)
+ getpkt (&rs->buf, 0);
+ if (strcmp (rs->buf.data (), "OK") == 0)
remote_protocol_packets[PACKET_vFile_setfs].support = PACKET_DISABLE;
- else if (strcmp (rs->buf, "") != 0)
+ else if (strcmp (rs->buf.data (), "") != 0)
error (_("Remote replied unexpectedly to '%s': %s"), v_mustreplyempty,
- rs->buf);
+ rs->buf.data ());
}
/* Next, we possibly activate noack mode.
if (packet_config_support (noack_config) != PACKET_DISABLE)
{
putpkt ("QStartNoAckMode");
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (packet_ok (rs->buf, noack_config) == PACKET_OK)
rs->noack_mode = 1;
}
{
/* Tell the remote that we are using the extended protocol. */
putpkt ("!");
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
}
/* Let the target know which signals it is allowed to pass down to
"does not support non-stop"));
putpkt ("QNonStop:1");
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
- if (strcmp (rs->buf, "OK") != 0)
- error (_("Remote refused setting non-stop mode with: %s"), rs->buf);
+ if (strcmp (rs->buf.data (), "OK") != 0)
+ error (_("Remote refused setting non-stop mode with: %s"),
+ rs->buf.data ());
/* Find about threads and processes the stub is already
controlling. We default to adding them in the running state.
/* Don't assume that the stub can operate in all-stop mode.
Request it explicitly. */
putpkt ("QNonStop:0");
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
- if (strcmp (rs->buf, "OK") != 0)
- error (_("Remote refused setting all-stop mode with: %s"), rs->buf);
+ if (strcmp (rs->buf.data (), "OK") != 0)
+ error (_("Remote refused setting all-stop mode with: %s"),
+ rs->buf.data ());
}
/* Upload TSVs regardless of whether the target is running or not. The
/* Check whether the target is running now. */
putpkt ("?");
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (!target_is_non_stop_p ())
{
else
{
/* Save the reply for later. */
- wait_status = (char *) alloca (strlen (rs->buf) + 1);
- strcpy (wait_status, rs->buf);
+ wait_status = (char *) alloca (strlen (rs->buf.data ()) + 1);
+ strcpy (wait_status, rs->buf.data ());
}
/* Fetch thread list. */
multi-threaded program, this will ideally be the thread
that last reported an event before GDB disconnected. */
inferior_ptid = get_current_thread (wait_status);
- if (ptid_equal (inferior_ptid, null_ptid))
+ if (inferior_ptid == null_ptid)
{
/* Odd... The target was able to list threads, but not
tell us which thread was current (no "thread"
"warning: couldn't determine remote "
"current thread; picking first in list.\n");
- inferior_ptid = thread_list->ptid;
+ inferior_ptid = inferior_list->thread_list->ptid;
}
}
/* Use the previously fetched status. */
gdb_assert (wait_status != NULL);
- strcpy (rs->buf, wait_status);
+ strcpy (rs->buf.data (), wait_status);
rs->cached_wait_status = 1;
::start_remote (from_tty); /* Initialize gdb process mechanisms. */
reply. In the latter case, there may be more than one thread
stopped --- we pull them all out using the vStopped
mechanism. */
- if (strcmp (rs->buf, "OK") != 0)
+ if (strcmp (rs->buf.data (), "OK") != 0)
{
struct notif_client *notif = ¬if_client_stop;
/* remote_notif_get_pending_replies acks this one, and gets
the rest out. */
rs->notif_state->pending_event[notif_client_stop.id]
- = remote_notif_parse (this, notif, rs->buf);
+ = remote_notif_parse (this, notif, rs->buf.data ());
remote_notif_get_pending_events (notif);
}
gdb_assert (wait_status == NULL);
/* Report all signals during attach/startup. */
- pass_signals (0, NULL);
+ pass_signals ({});
/* If there are already stopped threads, mark them stopped and
report their stops before giving the prompt to the user. */
void
remote_target::remote_check_symbols ()
{
- char *msg, *reply, *tmp;
+ char *tmp;
int end;
- long reply_size;
- struct cleanup *old_chain;
/* The remote side has no concept of inferiors that aren't running
yet, it only knows about running processes. If we're connected
/* Allocate a message buffer. We can't reuse the input buffer in RS,
because we need both at the same time. */
- msg = (char *) xmalloc (get_remote_packet_size ());
- old_chain = make_cleanup (xfree, msg);
- reply = (char *) xmalloc (get_remote_packet_size ());
- make_cleanup (free_current_contents, &reply);
- reply_size = get_remote_packet_size ();
+ gdb::char_vector msg (get_remote_packet_size ());
+ gdb::char_vector reply (get_remote_packet_size ());
/* Invite target to request symbol lookups. */
putpkt ("qSymbol::");
- getpkt (&reply, &reply_size, 0);
+ getpkt (&reply, 0);
packet_ok (reply, &remote_protocol_packets[PACKET_qSymbol]);
- while (startswith (reply, "qSymbol:"))
+ while (startswith (reply.data (), "qSymbol:"))
{
struct bound_minimal_symbol sym;
tmp = &reply[8];
- end = hex2bin (tmp, (gdb_byte *) msg, strlen (tmp) / 2);
+ end = hex2bin (tmp, reinterpret_cast <gdb_byte *> (msg.data ()),
+ strlen (tmp) / 2);
msg[end] = '\0';
- sym = lookup_minimal_symbol (msg, NULL, NULL);
+ sym = lookup_minimal_symbol (msg.data (), NULL, NULL);
if (sym.minsym == NULL)
- xsnprintf (msg, get_remote_packet_size (), "qSymbol::%s", &reply[8]);
+ xsnprintf (msg.data (), get_remote_packet_size (), "qSymbol::%s",
+ &reply[8]);
else
{
int addr_size = gdbarch_addr_bit (target_gdbarch ()) / 8;
instead of any data function descriptor. */
sym_addr = gdbarch_convert_from_func_ptr_addr (target_gdbarch (),
sym_addr,
- target_stack);
+ current_top_target ());
- xsnprintf (msg, get_remote_packet_size (), "qSymbol:%s:%s",
+ xsnprintf (msg.data (), get_remote_packet_size (), "qSymbol:%s:%s",
phex_nz (sym_addr, addr_size), &reply[8]);
}
-
- putpkt (msg);
- getpkt (&reply, &reply_size, 0);
- }
- do_cleanups (old_chain);
+ putpkt (msg.data ());
+ getpkt (&reply, 0);
+ }
}
static struct serial *
{
struct remote_state *rs = get_remote_state ();
- xsnprintf (rs->buf, get_remote_packet_size (), "QAllow:"
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "QAllow:"
"WriteReg:%x;WriteMem:%x;"
"InsertBreak:%x;InsertTrace:%x;"
"InsertFastTrace:%x;Stop:%x",
may_insert_breakpoints, may_insert_tracepoints,
may_insert_fast_tracepoints, may_stop);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
/* If the target didn't like the packet, warn the user. Do not try
to undo the user's settings, that would just be maddening. */
- if (strcmp (rs->buf, "OK") != 0)
- warning (_("Remote refused setting permissions with: %s"), rs->buf);
+ if (strcmp (rs->buf.data (), "OK") != 0)
+ warning (_("Remote refused setting permissions with: %s"),
+ rs->buf.data ());
}
/* This type describes each known response to the qSupported
rs->explicit_packet_size = packet_size;
}
-void
+static void
remote_packet_size (remote_target *remote, const protocol_feature *feature,
enum packet_support support, const char *value)
{
remote_supported_packet, PACKET_augmented_libraries_svr4_read_feature },
{ "qXfer:memory-map:read", PACKET_DISABLE, remote_supported_packet,
PACKET_qXfer_memory_map },
- { "qXfer:spu:read", PACKET_DISABLE, remote_supported_packet,
- PACKET_qXfer_spu_read },
- { "qXfer:spu:write", PACKET_DISABLE, remote_supported_packet,
- PACKET_qXfer_spu_write },
{ "qXfer:osdata:read", PACKET_DISABLE, remote_supported_packet,
PACKET_qXfer_osdata },
{ "qXfer:threads:read", PACKET_DISABLE, remote_supported_packet,
else
{
char *copy = xstrdup (remote_support_xml + 13);
- char *p = strtok (copy, ",");
+ char *saveptr;
+ char *p = strtok_r (copy, ",", &saveptr);
do
{
return;
}
}
- while ((p = strtok (NULL, ",")) != NULL);
+ while ((p = strtok_r (NULL, ",", &saveptr)) != NULL);
xfree (copy);
remote_support_xml = reconcat (remote_support_xml,
q = "qSupported:" + q;
putpkt (q.c_str ());
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
/* If an error occured, warn, but do not return - just reset the
buffer to empty and go on to disable features. */
if (packet_ok (rs->buf, &remote_protocol_packets[PACKET_qSupported])
== PACKET_ERROR)
{
- warning (_("Remote failure reply: %s"), rs->buf);
+ warning (_("Remote failure reply: %s"), rs->buf.data ());
rs->buf[0] = 0;
}
}
memset (seen, 0, sizeof (seen));
- next = rs->buf;
+ next = rs->buf.data ();
while (*next)
{
enum packet_support is_supported;
buffer size also. We delay this until after parsing the entire
qSupported packet, because this is the same buffer we were
parsing. */
- if (rs->buf_size < rs->explicit_packet_size)
- {
- rs->buf_size = rs->explicit_packet_size;
- rs->buf = (char *) xrealloc (rs->buf, rs->buf_size);
- }
+ if (rs->buf.size () < rs->explicit_packet_size)
+ rs->buf.resize (rs->explicit_packet_size);
/* Handle the defaults for unmentioned features. */
for (i = 0; i < ARRAY_SIZE (remote_protocol_features); i++)
}
/* Switch to using the remote target now. */
- push_target (remote);
- /* The target stack owns the target now. */
- target_holder.release ();
+ push_target (std::move (target_holder));
/* Register extra event sources in the event loop. */
rs->remote_async_inferior_event_token
/* First delete any symbols previously loaded from shared libraries. */
no_shared_libraries (NULL, 0);
- /* Start afresh. */
- init_thread_list ();
-
/* Start the remote connection. If error() or QUIT, discard this
target (we'd otherwise be in an inconsistent state) and then
propogate the error on up the exception chain. This ensures that
function. See cli-dump.c. */
{
- TRY
+ try
{
remote->start_remote (from_tty, extended_p);
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
/* Pop the partially set up target - unless something else did
already before throwing the exception. */
if (ex.error != TARGET_CLOSE_ERROR)
remote_unpush_target ();
- throw_exception (ex);
+ throw;
}
- END_CATCH
}
remote_btrace_reset (rs);
{
struct remote_state *rs = get_remote_state ();
+ /* This should not be necessary, but the handling for D;PID in
+ GDBserver versions prior to 8.2 incorrectly assumes that the
+ selected process points to the same process we're detaching,
+ leading to misbehavior (and possibly GDBserver crashing) when it
+ does not. Since it's easy and cheap, work around it by forcing
+ GDBserver to select GDB's current process. */
+ set_general_process ();
+
if (remote_multi_process_p (rs))
- xsnprintf (rs->buf, get_remote_packet_size (), "D;%x", pid);
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "D;%x", pid);
else
- strcpy (rs->buf, "D");
+ strcpy (rs->buf.data (), "D");
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (rs->buf[0] == 'O' && rs->buf[1] == 'K')
;
one. */
void
-remote_target::remote_detach_1 (int from_tty, inferior *inf)
+remote_target::remote_detach_1 (inferior *inf, int from_tty)
{
- int pid = ptid_get_pid (inferior_ptid);
+ int pid = inferior_ptid.pid ();
struct remote_state *rs = get_remote_state ();
- struct thread_info *tp = find_thread_ptid (inferior_ptid);
int is_fork_parent;
if (!target_has_execution)
if (from_tty && !rs->extended && number_of_live_inferiors () == 1)
puts_filtered (_("Ending remote debugging.\n"));
+ struct thread_info *tp = find_thread_ptid (inferior_ptid);
+
/* Check to see if we are detaching a fork parent. Note that if we
are detaching a fork child, tp == NULL. */
is_fork_parent = (tp != NULL
{
/* Save the pid as a string before mourning, since that will
unpush the remote target, and we need the string after. */
- std::string infpid = target_pid_to_str (pid_to_ptid (pid));
+ std::string infpid = target_pid_to_str (ptid_t (pid));
target_mourn_inferior (inferior_ptid);
if (print_inferior_events)
else
{
inferior_ptid = null_ptid;
- detach_inferior (pid);
+ detach_inferior (current_inferior ());
}
}
void
remote_target::detach (inferior *inf, int from_tty)
{
- remote_detach_1 (from_tty, inf);
+ remote_detach_1 (inf, from_tty);
}
void
extended_remote_target::detach (inferior *inf, int from_tty)
{
- remote_detach_1 (from_tty, inf);
+ remote_detach_1 (inf, from_tty);
}
/* Target follow-fork function for remote targets. On entry, and
pid_t child_pid;
child_ptid = inferior_thread ()->pending_follow.value.related_pid;
- child_pid = ptid_get_pid (child_ptid);
+ child_pid = child_ptid.pid ();
remote_detach_pid (child_pid);
}
follow-exec-mode is "new". */
void
-remote_target::follow_exec (struct inferior *inf, char *execd_pathname)
+remote_target::follow_exec (struct inferior *inf, const char *execd_pathname)
{
/* We know that this is a target file name, so if it has the "target:"
prefix we strip it off before saving it in the program space. */
if (from_tty)
{
- char *exec_file = get_exec_file (0);
+ const char *exec_file = get_exec_file (0);
if (exec_file)
printf_unfiltered (_("Attaching to program: %s, %s\n"), exec_file,
- target_pid_to_str (pid_to_ptid (pid)));
+ target_pid_to_str (ptid_t (pid)).c_str ());
else
printf_unfiltered (_("Attaching to %s\n"),
- target_pid_to_str (pid_to_ptid (pid)));
-
- gdb_flush (gdb_stdout);
+ target_pid_to_str (ptid_t (pid)).c_str ());
}
- xsnprintf (rs->buf, get_remote_packet_size (), "vAttach;%x", pid);
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "vAttach;%x", pid);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf,
&remote_protocol_packets[PACKET_vAttach]))
if (!target_is_non_stop_p ())
{
/* Save the reply for later. */
- wait_status = (char *) alloca (strlen (rs->buf) + 1);
- strcpy (wait_status, rs->buf);
+ wait_status = (char *) alloca (strlen (rs->buf.data ()) + 1);
+ strcpy (wait_status, rs->buf.data ());
}
- else if (strcmp (rs->buf, "OK") != 0)
+ else if (strcmp (rs->buf.data (), "OK") != 0)
error (_("Attaching to %s failed with: %s"),
- target_pid_to_str (pid_to_ptid (pid)),
- rs->buf);
+ target_pid_to_str (ptid_t (pid)).c_str (),
+ rs->buf.data ());
break;
case PACKET_UNKNOWN:
error (_("This target does not support attaching to a process"));
default:
error (_("Attaching to %s failed"),
- target_pid_to_str (pid_to_ptid (pid)));
+ target_pid_to_str (ptid_t (pid)).c_str ());
}
- set_current_inferior (remote_add_inferior (0, pid, 1, 0));
+ set_current_inferior (remote_add_inferior (false, pid, 1, 0));
- inferior_ptid = pid_to_ptid (pid);
+ inferior_ptid = ptid_t (pid);
if (target_is_non_stop_p ())
{
/* Get list of threads. */
update_thread_list ();
- thread = first_thread_of_process (pid);
+ thread = first_thread_of_inferior (current_inferior ());
if (thread)
inferior_ptid = thread->ptid;
else
- inferior_ptid = pid_to_ptid (pid);
+ inferior_ptid = ptid_t (pid);
/* Invalidate our notion of the remote current thread. */
record_currthread (rs, minus_one_ptid);
else
{
gdb_assert (wait_status != NULL);
- strcpy (rs->buf, wait_status);
+ strcpy (rs->buf.data (), wait_status);
rs->cached_wait_status = 1;
}
}
remote_state *rs = get_remote_state ();
char *buf;
- strcpy (rs->buf, "vCont?");
+ strcpy (rs->buf.data (), "vCont?");
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
- buf = rs->buf;
+ getpkt (&rs->buf, 0);
+ buf = rs->buf.data ();
/* Make sure that the features we assume are supported. */
if (startswith (buf, "vCont"))
buf[0] = 0;
}
- packet_ok (buf, &remote_protocol_packets[PACKET_vCont]);
+ packet_ok (rs->buf, &remote_protocol_packets[PACKET_vCont]);
}
/* Helper function for building "vCont" resumptions. Write a
threads with a wildcard (though the protocol allows it,
so stubs shouldn't make an active effort to forbid
it). */
- && !(remote_multi_process_p (rs) && ptid_is_pid (ptid)))
+ && !(remote_multi_process_p (rs) && ptid.is_pid ()))
{
struct thread_info *tp;
- if (ptid_equal (ptid, minus_one_ptid))
+ if (ptid == minus_one_ptid)
{
/* If we don't know about the target thread's tid, then
we're resuming magic_null_ptid (see caller). */
else
p += xsnprintf (p, endp - p, ";c");
- if (remote_multi_process_p (rs) && ptid_is_pid (ptid))
+ if (remote_multi_process_p (rs) && ptid.is_pid ())
{
ptid_t nptid;
/* All (-1) threads of process. */
- nptid = ptid_build (ptid_get_pid (ptid), -1, 0);
+ nptid = ptid_t (ptid.pid (), -1, 0);
p += xsnprintf (p, endp - p, ":");
p = write_ptid (p, endp, nptid);
}
- else if (!ptid_equal (ptid, minus_one_ptid))
+ else if (ptid != minus_one_ptid)
{
p += xsnprintf (p, endp - p, ":");
p = write_ptid (p, endp, ptid);
remote_target::append_pending_thread_resumptions (char *p, char *endp,
ptid_t ptid)
{
- struct thread_info *thread;
-
- ALL_NON_EXITED_THREADS (thread)
- if (ptid_match (thread->ptid, ptid)
- && !ptid_equal (inferior_ptid, thread->ptid)
+ for (thread_info *thread : all_non_exited_threads (ptid))
+ if (inferior_ptid != thread->ptid
&& thread->suspend.stop_signal != GDB_SIGNAL_0)
{
p = append_resumption (p, endp, thread->ptid,
gdb_signal siggnal)
{
struct remote_state *rs = get_remote_state ();
- struct thread_info *thread;
char *buf;
rs->last_sent_signal = siggnal;
/* The c/s/C/S resume packets use Hc, so set the continue
thread. */
- if (ptid_equal (ptid, minus_one_ptid))
+ if (ptid == minus_one_ptid)
set_continue_thread (any_thread_ptid);
else
set_continue_thread (ptid);
- ALL_NON_EXITED_THREADS (thread)
+ for (thread_info *thread : all_non_exited_threads ())
resume_clear_thread_private_info (thread);
- buf = rs->buf;
+ buf = rs->buf.data ();
if (::execution_direction == EXEC_REVERSE)
{
/* We don't pass signals to the target in reverse exec mode. */
if (packet_support (PACKET_vCont) == PACKET_DISABLE)
return 0;
- p = rs->buf;
- endp = rs->buf + get_remote_packet_size ();
+ p = rs->buf.data ();
+ endp = p + get_remote_packet_size ();
/* If we could generate a wider range of packets, we'd have to worry
about overflowing BUF. Should there be a generic
p += xsnprintf (p, endp - p, "vCont");
- if (ptid_equal (ptid, magic_null_ptid))
+ if (ptid == magic_null_ptid)
{
/* MAGIC_NULL_PTID means that we don't have any active threads,
so we don't have any TID numbers the inferior will
a TID. */
append_resumption (p, endp, minus_one_ptid, step, siggnal);
}
- else if (ptid_equal (ptid, minus_one_ptid) || ptid_is_pid (ptid))
+ else if (ptid == minus_one_ptid || ptid.is_pid ())
{
/* Resume all threads (of all processes, or of a single
process), with preference for INFERIOR_PTID. This assumes
append_resumption (p, endp, ptid, step, siggnal);
}
- gdb_assert (strlen (rs->buf) < get_remote_packet_size ());
+ gdb_assert (strlen (rs->buf.data ()) < get_remote_packet_size ());
putpkt (rs->buf);
if (target_is_non_stop_p ())
/* In non-stop, the stub replies to vCont with "OK". The stop
reply will be reported asynchronously by means of a `%Stop'
notification. */
- getpkt (&rs->buf, &rs->buf_size, 0);
- if (strcmp (rs->buf, "OK") != 0)
- error (_("Unexpected vCont reply in non-stop mode: %s"), rs->buf);
+ getpkt (&rs->buf, 0);
+ if (strcmp (rs->buf.data (), "OK") != 0)
+ error (_("Unexpected vCont reply in non-stop mode: %s"),
+ rs->buf.data ());
}
return 1;
{
remote_thread_info *remote_thr;
- if (ptid_equal (minus_one_ptid, ptid) || ptid_is_pid (ptid))
+ if (minus_one_ptid == ptid || ptid.is_pid ())
remote_thr = get_remote_thread_info (inferior_ptid);
else
remote_thr = get_remote_thread_info (ptid);
{
struct remote_state *rs = m_remote->get_remote_state ();
- m_p = rs->buf;
- m_endp = rs->buf + m_remote->get_remote_packet_size ();
+ m_p = rs->buf.data ();
+ m_endp = m_p + m_remote->get_remote_packet_size ();
m_p += xsnprintf (m_p, m_endp - m_p, "vCont");
m_first_action = m_p;
}
rs = m_remote->get_remote_state ();
m_remote->putpkt (rs->buf);
- m_remote->getpkt (&rs->buf, &rs->buf_size, 0);
- if (strcmp (rs->buf, "OK") != 0)
- error (_("Unexpected vCont reply in non-stop mode: %s"), rs->buf);
+ m_remote->getpkt (&rs->buf, 0);
+ if (strcmp (rs->buf.data (), "OK") != 0)
+ error (_("Unexpected vCont reply in non-stop mode: %s"), rs->buf.data ());
}
/* The largest action is range-stepping, with its two addresses. This
void
remote_target::commit_resume ()
{
- struct inferior *inf;
- struct thread_info *tp;
int any_process_wildcard;
int may_global_wildcard_vcont;
may_global_wildcard_vcont = 1;
/* And assume every process is individually wildcard-able too. */
- ALL_NON_EXITED_INFERIORS (inf)
+ for (inferior *inf : all_non_exited_inferiors ())
{
remote_inferior *priv = get_remote_inferior (inf);
disable process and global wildcard resumes appropriately. */
check_pending_events_prevent_wildcard_vcont (&may_global_wildcard_vcont);
- ALL_NON_EXITED_THREADS (tp)
+ for (thread_info *tp : all_non_exited_threads ())
{
/* If a thread of a process is not meant to be resumed, then we
can't wildcard that process. */
struct vcont_builder vcont_builder (this);
/* Threads first. */
- ALL_NON_EXITED_THREADS (tp)
+ for (thread_info *tp : all_non_exited_threads ())
{
remote_thread_info *remote_thr = get_remote_thread_info (tp);
supposed to be resumed. */
any_process_wildcard = 0;
- ALL_NON_EXITED_INFERIORS (inf)
+ for (inferior *inf : all_non_exited_inferiors ())
{
if (get_remote_inferior (inf)->may_wildcard_vcont)
{
}
else
{
- ALL_NON_EXITED_INFERIORS (inf)
+ for (inferior *inf : all_non_exited_inferiors ())
{
if (get_remote_inferior (inf)->may_wildcard_vcont)
{
- vcont_builder.push_action (pid_to_ptid (inf->pid),
+ vcont_builder.push_action (ptid_t (inf->pid),
false, GDB_SIGNAL_0);
}
}
remote_target::remote_stop_ns (ptid_t ptid)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
- char *endp = rs->buf + get_remote_packet_size ();
+ char *p = rs->buf.data ();
+ char *endp = p + get_remote_packet_size ();
if (packet_support (PACKET_vCont) == PACKET_SUPPORT_UNKNOWN)
remote_vcont_probe ();
if (!rs->supports_vCont.t)
error (_("Remote server does not support stopping threads"));
- if (ptid_equal (ptid, minus_one_ptid)
- || (!remote_multi_process_p (rs) && ptid_is_pid (ptid)))
+ if (ptid == minus_one_ptid
+ || (!remote_multi_process_p (rs) && ptid.is_pid ()))
p += xsnprintf (p, endp - p, "vCont;t");
else
{
p += xsnprintf (p, endp - p, "vCont;t:");
- if (ptid_is_pid (ptid))
+ if (ptid.is_pid ())
/* All (-1) threads of process. */
- nptid = ptid_build (ptid_get_pid (ptid), -1, 0);
+ nptid = ptid_t (ptid.pid (), -1, 0);
else
{
/* Small optimization: if we already have a stop reply for
/* In non-stop, we get an immediate OK reply. The stop reply will
come in asynchronously by notification. */
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
- if (strcmp (rs->buf, "OK") != 0)
- error (_("Stopping %s failed: %s"), target_pid_to_str (ptid), rs->buf);
+ getpkt (&rs->buf, 0);
+ if (strcmp (rs->buf.data (), "OK") != 0)
+ error (_("Stopping %s failed: %s"), target_pid_to_str (ptid).c_str (),
+ rs->buf.data ());
}
/* All-stop version of target_interrupt. Sends a break or a ^C to
remote_target::remote_interrupt_ns ()
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
- char *endp = rs->buf + get_remote_packet_size ();
+ char *p = rs->buf.data ();
+ char *endp = p + get_remote_packet_size ();
xsnprintf (p, endp - p, "vCtrlC");
/* In non-stop, we get an immediate OK reply. The stop reply will
come in asynchronously by notification. */
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf, &remote_protocol_packets[PACKET_vCtrlC]))
{
case PACKET_UNKNOWN:
error (_("No support for interrupting the remote target."));
case PACKET_ERROR:
- error (_("Interrupting target failed: %s"), rs->buf);
+ error (_("Interrupting target failed: %s"), rs->buf.data ());
}
}
}
static void
-remote_console_output (char *msg)
+remote_console_output (const char *msg)
{
- char *p;
+ const char *p;
for (p = msg; p[0] && p[1]; p += 2)
{
gdb_flush (gdb_stdtarg);
}
-DEF_VEC_O(cached_reg_t);
-
-typedef struct stop_reply
+struct stop_reply : public notif_event
{
- struct notif_event base;
+ ~stop_reply ();
/* The identifier of the thread about this event */
ptid_t ptid;
efficient for those targets that provide critical registers as
part of their normal status mechanism (as another roundtrip to
fetch them is avoided). */
- VEC(cached_reg_t) *regcache;
+ std::vector<cached_reg_t> regcache;
enum target_stop_reason stop_reason;
CORE_ADDR watch_data_address;
int core;
-} *stop_reply_p;
-
-static void
-stop_reply_xfree (struct stop_reply *r)
-{
- notif_event_xfree ((struct notif_event *) r);
-}
+};
/* Return the length of the stop reply queue. */
remote_target::stop_reply_queue_length ()
{
remote_state *rs = get_remote_state ();
- return QUEUE_length (stop_reply_p, rs->stop_reply_queue);
+ return rs->stop_reply_queue.size ();
}
-void
+static void
remote_notif_stop_parse (remote_target *remote,
- struct notif_client *self, char *buf,
+ struct notif_client *self, const char *buf,
struct notif_event *event)
{
remote->remote_parse_stop_reply (buf, (struct stop_reply *) event);
static void
remote_notif_stop_ack (remote_target *remote,
- struct notif_client *self, char *buf,
+ struct notif_client *self, const char *buf,
struct notif_event *event)
{
struct stop_reply *stop_reply = (struct stop_reply *) event;
return 0;
}
-static void
-stop_reply_dtr (struct notif_event *event)
+stop_reply::~stop_reply ()
{
- 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);
+ for (cached_reg_t ® : regcache)
+ xfree (reg.data);
}
-static struct notif_event *
-remote_notif_stop_alloc_reply (void)
+static notif_event_up
+remote_notif_stop_alloc_reply ()
{
- /* We cast to a pointer to the "base class". */
- struct notif_event *r = (struct notif_event *) XNEW (struct stop_reply);
-
- r->dtr = stop_reply_dtr;
-
- return r;
+ return notif_event_up (new struct stop_reply ());
}
/* A client of notification Stop. */
REMOTE_NOTIF_STOP,
};
-/* A parameter to pass data in and out. */
-
-struct queue_iter_param
-{
- remote_target *remote;
- void *input;
- struct stop_reply *output;
-};
-
/* 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. */
if (ws->kind == TARGET_WAITKIND_FORKED
|| ws->kind == TARGET_WAITKIND_VFORKED)
{
- if (event_pid == -1 || event_pid == ptid_get_pid (thread_ptid))
+ if (event_pid == -1 || event_pid == thread_ptid.pid ())
return 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. */
-
-static int
-remove_child_of_pending_fork (QUEUE (stop_reply_p) *q,
- QUEUE_ITER (stop_reply_p) *iter,
- stop_reply_p event,
- void *data)
-{
- struct queue_iter_param *param = (struct queue_iter_param *) data;
- struct threads_listing_context *context
- = (struct threads_listing_context *) param->input;
-
- if (event->ws.kind == TARGET_WAITKIND_FORKED
- || event->ws.kind == TARGET_WAITKIND_VFORKED
- || event->ws.kind == TARGET_WAITKIND_THREAD_EXITED)
- context->remove_thread (event->ws.value.related_pid);
-
- return 1;
-}
-
/* If CONTEXT contains any fork child threads that have not been
reported yet, remove them from the CONTEXT list. If such a
thread exists it is because we are stopped at a fork catchpoint
void
remote_target::remove_new_fork_children (threads_listing_context *context)
{
- struct thread_info * thread;
int pid = -1;
struct notif_client *notif = ¬if_client_stop;
- struct queue_iter_param param;
/* For any threads stopped at a fork event, remove the corresponding
fork child threads from the CONTEXT list. */
- ALL_NON_EXITED_THREADS (thread)
+ for (thread_info *thread : all_non_exited_threads ())
{
struct target_waitstatus *ws = thread_pending_fork_status (thread);
in process PID and remove those fork child threads from the
CONTEXT list as well. */
remote_notif_get_pending_events (notif);
- param.remote = this;
- param.input = context;
- param.output = NULL;
- QUEUE_iterate (stop_reply_p, get_remote_state ()->stop_reply_queue,
- remove_child_of_pending_fork, ¶m);
-}
-
-/* Callback data for
- check_pending_event_prevents_wildcard_vcont_callback. */
-struct check_pending_event_prevents_wildcard_vcont_callback_data
-{
- /* The remote target. */
- remote_target *remote;
-
- /* Whether we can do a global wildcard (vCont;c) */
- int *may_global_wildcard_vcont;
-};
-
-/* 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;
- auto *cb_data = (check_pending_event_prevents_wildcard_vcont_callback_data *) 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)
- *cb_data->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. */
- *cb_data->may_global_wildcard_vcont = 0;
- if (inf != NULL)
- get_remote_inferior (inf)->may_wildcard_vcont = false;
-
- return 1;
+ for (auto &event : get_remote_state ()->stop_reply_queue)
+ if (event->ws.kind == TARGET_WAITKIND_FORKED
+ || event->ws.kind == TARGET_WAITKIND_VFORKED
+ || event->ws.kind == TARGET_WAITKIND_THREAD_EXITED)
+ context->remove_thread (event->ws.value.related_pid);
}
/* Check whether any event pending in the vStopped queue would prevent
(int *may_global_wildcard)
{
struct notif_client *notif = ¬if_client_stop;
- check_pending_event_prevents_wildcard_vcont_callback_data cb_data
- {this, may_global_wildcard};
remote_notif_get_pending_events (notif);
- QUEUE_iterate (stop_reply_p, get_remote_state ()->stop_reply_queue,
- check_pending_event_prevents_wildcard_vcont_callback,
- &cb_data);
-}
+ for (auto &event : get_remote_state ()->stop_reply_queue)
+ {
+ if (event->ws.kind == TARGET_WAITKIND_NO_RESUMED
+ || event->ws.kind == TARGET_WAITKIND_NO_HISTORY)
+ continue;
-/* Remove stop replies in the queue if its pid is equal to the given
- inferior's pid. */
+ if (event->ws.kind == TARGET_WAITKIND_FORKED
+ || event->ws.kind == TARGET_WAITKIND_VFORKED)
+ *may_global_wildcard = 0;
-static int
-remove_stop_reply_for_inferior (QUEUE (stop_reply_p) *q,
- QUEUE_ITER (stop_reply_p) *iter,
- stop_reply_p event,
- void *data)
-{
- struct queue_iter_param *param = (struct queue_iter_param *) data;
- struct inferior *inf = (struct inferior *) param->input;
+ struct inferior *inf = find_inferior_ptid (event->ptid);
- if (ptid_get_pid (event->ptid) == inf->pid)
- {
- stop_reply_xfree (event);
- QUEUE_remove_elem (stop_reply_p, q, iter);
+ /* 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 = 0;
+ if (inf != NULL)
+ get_remote_inferior (inf)->may_wildcard_vcont = false;
}
-
- return 1;
}
/* Discard all pending stop replies of inferior INF. */
void
remote_target::discard_pending_stop_replies (struct inferior *inf)
{
- struct queue_iter_param param;
struct stop_reply *reply;
struct remote_state *rs = get_remote_state ();
struct remote_notif_state *rns = rs->notif_state;
reply = (struct stop_reply *) rns->pending_event[notif_client_stop.id];
/* Discard the in-flight notification. */
- if (reply != NULL && ptid_get_pid (reply->ptid) == inf->pid)
+ if (reply != NULL && reply->ptid.pid () == inf->pid)
{
- stop_reply_xfree (reply);
+ delete reply;
rns->pending_event[notif_client_stop.id] = NULL;
}
- param.remote = this;
- param.input = inf;
- param.output = NULL;
/* Discard the stop replies we have already pulled with
vStopped. */
- QUEUE_iterate (stop_reply_p, rs->stop_reply_queue,
- remove_stop_reply_for_inferior, ¶m);
-}
-
-/* If its remote state is equal to the given remote state,
- remove EVENT from the stop reply queue. */
-
-static int
-remove_stop_reply_of_remote_state (QUEUE (stop_reply_p) *q,
- QUEUE_ITER (stop_reply_p) *iter,
- stop_reply_p event,
- void *data)
-{
- struct queue_iter_param *param = (struct queue_iter_param *) data;
- struct remote_state *rs = (struct remote_state *) param->input;
-
- if (event->rs == rs)
- {
- stop_reply_xfree (event);
- QUEUE_remove_elem (stop_reply_p, q, iter);
- }
-
- return 1;
+ auto iter = std::remove_if (rs->stop_reply_queue.begin (),
+ rs->stop_reply_queue.end (),
+ [=] (const stop_reply_up &event)
+ {
+ return event->ptid.pid () == inf->pid;
+ });
+ rs->stop_reply_queue.erase (iter, rs->stop_reply_queue.end ());
}
/* Discard the stop replies for RS in stop_reply_queue. */
remote_target::discard_pending_stop_replies_in_queue ()
{
remote_state *rs = get_remote_state ();
- struct queue_iter_param param;
- param.remote = this;
- param.input = rs;
- param.output = NULL;
/* Discard the stop replies we have already pulled with
vStopped. */
- QUEUE_iterate (stop_reply_p, rs->stop_reply_queue,
- remove_stop_reply_of_remote_state, ¶m);
-}
-
-/* A parameter to pass data in and out. */
-
-static int
-remote_notif_remove_once_on_match (QUEUE (stop_reply_p) *q,
- QUEUE_ITER (stop_reply_p) *iter,
- stop_reply_p event,
- void *data)
-{
- struct queue_iter_param *param = (struct queue_iter_param *) data;
- ptid_t *ptid = (ptid_t *) param->input;
-
- if (ptid_match (event->ptid, *ptid))
- {
- param->output = event;
- QUEUE_remove_elem (stop_reply_p, q, iter);
- return 0;
- }
-
- return 1;
+ auto iter = std::remove_if (rs->stop_reply_queue.begin (),
+ rs->stop_reply_queue.end (),
+ [=] (const stop_reply_up &event)
+ {
+ return event->rs == rs;
+ });
+ rs->stop_reply_queue.erase (iter, rs->stop_reply_queue.end ());
}
/* Remove the first reply in 'stop_reply_queue' which matches
struct stop_reply *
remote_target::remote_notif_remove_queued_reply (ptid_t ptid)
{
- struct queue_iter_param param;
+ remote_state *rs = get_remote_state ();
- param.remote = this;
- param.input = &ptid;
- param.output = NULL;
+ auto iter = std::find_if (rs->stop_reply_queue.begin (),
+ rs->stop_reply_queue.end (),
+ [=] (const stop_reply_up &event)
+ {
+ return event->ptid.matches (ptid);
+ });
+ struct stop_reply *result;
+ if (iter == rs->stop_reply_queue.end ())
+ result = nullptr;
+ else
+ {
+ result = iter->release ();
+ rs->stop_reply_queue.erase (iter);
+ }
- QUEUE_iterate (stop_reply_p, get_remote_state ()->stop_reply_queue,
- remote_notif_remove_once_on_match, ¶m);
if (notif_debug)
fprintf_unfiltered (gdb_stdlog,
"notif: discard queued event: 'Stop' in %s\n",
- target_pid_to_str (ptid));
+ target_pid_to_str (ptid).c_str ());
- return param.output;
+ return result;
}
/* Look for a queued stop reply belonging to PTID. If one is found,
struct stop_reply *
remote_target::queued_stop_reply (ptid_t ptid)
{
+ remote_state *rs = get_remote_state ();
struct stop_reply *r = remote_notif_remove_queued_reply (ptid);
- if (!QUEUE_is_empty (stop_reply_p, get_remote_state ()->stop_reply_queue))
+ if (!rs->stop_reply_queue.empty ())
{
- remote_state *rs = get_remote_state ();
/* There's still at least an event left. */
mark_async_event_handler (rs->remote_async_inferior_event_token);
}
remote_target::push_stop_reply (struct stop_reply *new_event)
{
remote_state *rs = get_remote_state ();
- QUEUE_enque (stop_reply_p, rs->stop_reply_queue, new_event);
+ rs->stop_reply_queue.push_back (stop_reply_up (new_event));
if (notif_debug)
fprintf_unfiltered (gdb_stdlog,
"notif: push 'Stop' %s to queue %d\n",
- target_pid_to_str (new_event->ptid),
- QUEUE_length (stop_reply_p,
- rs->stop_reply_queue));
+ target_pid_to_str (new_event->ptid).c_str (),
+ int (rs->stop_reply_queue.size ()));
mark_async_event_handler (rs->remote_async_inferior_event_token);
}
-static int
-stop_reply_match_ptid_and_ws (QUEUE (stop_reply_p) *q,
- QUEUE_ITER (stop_reply_p) *iter,
- struct stop_reply *event,
- void *data)
-{
- ptid_t *ptid = (ptid_t *) data;
-
- return !(ptid_equal (*ptid, event->ptid)
- && event->ws.kind == TARGET_WAITKIND_STOPPED);
-}
-
/* Returns true if we have a stop reply for PTID. */
int
remote_target::peek_stop_reply (ptid_t ptid)
{
remote_state *rs = get_remote_state ();
- return !QUEUE_iterate (stop_reply_p, rs->stop_reply_queue,
- stop_reply_match_ptid_and_ws, &ptid);
+ for (auto &event : rs->stop_reply_queue)
+ if (ptid == event->ptid
+ && event->ws.kind == TARGET_WAITKIND_STOPPED)
+ return 1;
+ return 0;
}
/* Helper for remote_parse_stop_reply. Return nonzero if the substring
result is stored in EVENT, or throws an error. */
void
-remote_target::remote_parse_stop_reply (char *buf, stop_reply *event)
+remote_target::remote_parse_stop_reply (const char *buf, stop_reply *event)
{
remote_arch_state *rsa = NULL;
ULONGEST addr;
event->ws.kind = TARGET_WAITKIND_IGNORE;
event->ws.value.integer = 0;
event->stop_reason = TARGET_STOPPED_BY_NO_REASON;
- event->regcache = NULL;
+ event->regcache.clear ();
event->core = -1;
switch (buf[0])
else if (strprefix (p, p1, "exec"))
{
ULONGEST ignored;
- char pathname[PATH_MAX];
int pathlen;
/* Determine the length of the execd pathname. */
/* Save the pathname for event reporting and for
the next run command. */
- hex2bin (p1, (gdb_byte *) pathname, pathlen);
+ gdb::unique_xmalloc_ptr<char[]> pathname
+ ((char *) xmalloc (pathlen + 1));
+ hex2bin (p1, (gdb_byte *) pathname.get (), pathlen);
pathname[pathlen] = '\0';
/* This is freed during event handling. */
- event->ws.value.execd_pathname = xstrdup (pathname);
+ event->ws.value.execd_pathname = pathname.release ();
event->ws.kind = TARGET_WAITKIND_EXECD;
/* Skip the registers included in this packet, since
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);
+ event->regcache.push_back (cached_reg);
}
else
{
break;
case 'w': /* Thread exited. */
{
- const char *p;
ULONGEST value;
event->ws.kind = TARGET_WAITKIND_THREAD_EXITED;
case 'W': /* Target exited. */
case 'X':
{
- const char *p;
int pid;
ULONGEST value;
}
/* If no process is specified, assume inferior_ptid. */
- pid = ptid_get_pid (inferior_ptid);
+ pid = inferior_ptid.pid ();
if (*p == '\0')
;
else if (*p == ';')
}
else
error (_("unknown stop reply packet: %s"), buf);
- event->ptid = pid_to_ptid (pid);
+ event->ptid = ptid_t (pid);
}
break;
case 'N':
break;
}
- if (target_is_non_stop_p () && ptid_equal (event->ptid, null_ptid))
+ if (target_is_non_stop_p () && event->ptid == null_ptid)
error (_("No process or thread specified in stop reply: %s"), buf);
}
<GDB marks the REMOTE_ASYNC_GET_PENDING_EVENTS_TOKEN>
2.5) <-- (registers reply to step #2.3)
- Eventualy after step #2.5, we return to the event loop, which
+ Eventually after step #2.5, we return to the event loop, which
notices there's an event on the
REMOTE_ASYNC_GET_PENDING_EVENTS_TOKEN event and calls the
associated callback --- the function below. At this point, we're
nc->name);
/* acknowledge */
- nc->ack (this, nc, rs->buf, rs->notif_state->pending_event[nc->id]);
+ nc->ack (this, nc, rs->buf.data (),
+ rs->notif_state->pending_event[nc->id]);
rs->notif_state->pending_event[nc->id] = NULL;
while (1)
{
- getpkt (&rs->buf, &rs->buf_size, 0);
- if (strcmp (rs->buf, "OK") == 0)
+ getpkt (&rs->buf, 0);
+ if (strcmp (rs->buf.data (), "OK") == 0)
break;
else
- remote_notif_ack (this, nc, rs->buf);
+ remote_notif_ack (this, nc, rs->buf.data ());
}
}
else
/* If no thread/process was reported by the stub, assume the current
inferior. */
- if (ptid_equal (ptid, null_ptid))
+ if (ptid == null_ptid)
ptid = inferior_ptid;
if (status->kind != TARGET_WAITKIND_EXITED
&& status->kind != TARGET_WAITKIND_NO_RESUMED)
{
/* Expedited registers. */
- if (stop_reply->regcache)
+ if (!stop_reply->regcache.empty ())
{
struct regcache *regcache
= 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);
- ix++)
- {
- regcache_raw_supply (regcache, reg->num, reg->data);
- xfree (reg->data);
- }
+ for (cached_reg_t ® : stop_reply->regcache)
+ {
+ regcache->raw_supply (reg.num, reg.data);
+ xfree (reg.data);
+ }
- VEC_free (cached_reg_t, stop_reply->regcache);
+ stop_reply->regcache.clear ();
}
remote_notice_new_inferior (ptid, 0);
remote_thr->vcont_resumed = 0;
}
- stop_reply_xfree (stop_reply);
+ delete stop_reply;
return ptid;
}
/* If in non-stop mode, get out of getpkt even if a
notification is received. */
- ret = getpkt_or_notif_sane (&rs->buf, &rs->buf_size,
- 0 /* forever */, &is_notif);
+ ret = getpkt_or_notif_sane (&rs->buf, 0 /* forever */, &is_notif);
while (1)
{
if (ret != -1 && !is_notif)
/* We're out of sync with the target now. Did it continue
or not? We can't tell which thread it was in non-stop,
so just ignore this. */
- warning (_("Remote failure reply: %s"), rs->buf);
+ warning (_("Remote failure reply: %s"), rs->buf.data ());
break;
case 'O': /* Console output. */
- remote_console_output (rs->buf + 1);
+ remote_console_output (&rs->buf[1]);
break;
default:
- warning (_("Invalid remote reply: %s"), rs->buf);
+ warning (_("Invalid remote reply: %s"), rs->buf.data ());
break;
}
}
/* Otherwise do a blocking wait. */
- ret = getpkt_or_notif_sane (&rs->buf, &rs->buf_size,
- 1 /* forever */, &is_notif);
+ ret = getpkt_or_notif_sane (&rs->buf, 1 /* forever */, &is_notif);
}
}
_never_ wait for ever -> test on target_is_async_p().
However, before we do that we need to ensure that the caller
knows how to take the target into/out of async mode. */
- ret = getpkt_or_notif_sane (&rs->buf, &rs->buf_size,
- forever, &is_notif);
+ ret = getpkt_or_notif_sane (&rs->buf, forever, &is_notif);
/* GDB gets a notification. Return to core as this event is
not interesting. */
return minus_one_ptid;
}
- buf = rs->buf;
+ buf = rs->buf.data ();
/* Assume that the target has acknowledged Ctrl-C unless we receive
an 'F' or 'O' packet. */
break;
case 'N': case 'T': case 'S': case 'X': case 'W':
{
- struct stop_reply *stop_reply;
-
/* There is a stop reply to handle. */
rs->waiting_for_stop_reply = 0;
stop_reply
= (struct stop_reply *) remote_notif_parse (this,
¬if_client_stop,
- rs->buf);
+ rs->buf.data ());
event_ptid = process_stop_reply (stop_reply, status);
break;
else if (status->kind != TARGET_WAITKIND_EXITED
&& status->kind != TARGET_WAITKIND_SIGNALLED)
{
- if (!ptid_equal (event_ptid, null_ptid))
+ if (event_ptid != null_ptid)
record_currthread (rs, event_ptid);
else
event_ptid = inferior_ptid;
/* If there are are events left in the queue tell the event loop
to return here. */
- if (!QUEUE_is_empty (stop_reply_p, rs->stop_reply_queue))
+ if (!rs->stop_reply_queue.empty ())
mark_async_event_handler (rs->remote_async_inferior_event_token);
}
if (reg->pnum == -1)
return 0;
- p = rs->buf;
+ p = rs->buf.data ();
*p++ = 'p';
p += hexnumstr (p, reg->pnum);
*p++ = '\0';
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
- buf = rs->buf;
+ buf = rs->buf.data ();
- switch (packet_ok (buf, &remote_protocol_packets[PACKET_p]))
+ switch (packet_ok (rs->buf, &remote_protocol_packets[PACKET_p]))
{
case PACKET_OK:
break;
/* If this register is unfetchable, tell the regcache. */
if (buf[0] == 'x')
{
- regcache_raw_supply (regcache, reg->regnum, NULL);
+ regcache->raw_supply (reg->regnum, NULL);
return 1;
}
regp[i++] = fromhex (p[0]) * 16 + fromhex (p[1]);
p += 2;
}
- regcache_raw_supply (regcache, reg->regnum, regp);
+ regcache->raw_supply (reg->regnum, regp);
return 1;
}
struct remote_state *rs = get_remote_state ();
int buf_len;
- xsnprintf (rs->buf, get_remote_packet_size (), "g");
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "g");
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (packet_check_result (rs->buf) == PACKET_ERROR)
error (_("Could not read registers; remote failure reply '%s'"),
- rs->buf);
+ rs->buf.data ());
/* We can get out of synch in various cases. If the first character
in the buffer is not a hex character, assume that has happened
if (remote_debug)
fprintf_unfiltered (gdb_stdlog,
"Bad register packet; fetching a new packet\n");
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
}
- buf_len = strlen (rs->buf);
+ buf_len = strlen (rs->buf.data ());
/* Sanity check the received packet. */
if (buf_len % 2 != 0)
- error (_("Remote 'g' packet reply is of odd length: %s"), rs->buf);
+ error (_("Remote 'g' packet reply is of odd length: %s"), rs->buf.data ());
return buf_len / 2;
}
char *p;
char *regs;
- buf_len = strlen (rs->buf);
+ buf_len = strlen (rs->buf.data ());
/* Further sanity checks, with knowledge of the architecture. */
if (buf_len > 2 * rsa->sizeof_g_packet)
error (_("Remote 'g' packet reply is too long (expected %ld bytes, got %d "
- "bytes): %s"), rsa->sizeof_g_packet, buf_len / 2, rs->buf);
+ "bytes): %s"),
+ rsa->sizeof_g_packet, buf_len / 2,
+ rs->buf.data ());
/* 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
hex characters. Suck them all up, then supply them to the
register cacheing/storage mechanism. */
- p = rs->buf;
+ p = rs->buf.data ();
for (i = 0; i < rsa->sizeof_g_packet; i++)
{
if (p[0] == 0 || p[1] == 0)
if (r->in_g_packet)
{
- if ((r->offset + reg_size) * 2 > strlen (rs->buf))
+ if ((r->offset + reg_size) * 2 > strlen (rs->buf.data ()))
/* This shouldn't happen - we adjusted in_g_packet above. */
internal_error (__FILE__, __LINE__,
_("unexpected end of 'g' packet reply"));
else if (rs->buf[r->offset * 2] == 'x')
{
- gdb_assert (r->offset * 2 < strlen (rs->buf));
+ gdb_assert (r->offset * 2 < strlen (rs->buf.data ()));
/* The register isn't available, mark it as such (at
the same time setting the value to zero). */
- regcache_raw_supply (regcache, r->regnum, NULL);
+ regcache->raw_supply (r->regnum, NULL);
}
else
- regcache_raw_supply (regcache, r->regnum,
- regs + r->offset);
+ regcache->raw_supply (r->regnum, regs + r->offset);
}
}
}
int i;
set_remote_traceframe ();
- set_general_thread (regcache_get_ptid (regcache));
+ set_general_thread (regcache->ptid ());
if (regnum >= 0)
{
return;
/* This register is not available. */
- regcache_raw_supply (regcache, reg->regnum, NULL);
+ regcache->raw_supply (reg->regnum, NULL);
return;
}
if (!fetch_register_using_p (regcache, &rsa->regs[i]))
{
/* This register is not available. */
- regcache_raw_supply (regcache, i, NULL);
+ regcache->raw_supply (i, NULL);
}
}
/* Make sure all the necessary registers are cached. */
for (i = 0; i < gdbarch_num_regs (regcache->arch ()); i++)
if (rsa->regs[i].in_g_packet)
- regcache_raw_update (regcache, rsa->regs[i].regnum);
+ regcache->raw_update (rsa->regs[i].regnum);
break;
case PACKET_ENABLE:
break;
struct gdbarch *gdbarch = regcache->arch ();
struct remote_state *rs = get_remote_state ();
/* Try storing a single register. */
- char *buf = rs->buf;
+ char *buf = rs->buf.data ();
gdb_byte *regp = (gdb_byte *) alloca (register_size (gdbarch, reg->regnum));
char *p;
xsnprintf (buf, get_remote_packet_size (), "P%s=", phex_nz (reg->pnum, 0));
p = buf + strlen (buf);
- regcache_raw_collect (regcache, reg->regnum, regp);
+ regcache->raw_collect (reg->regnum, regp);
bin2hex (regp, p, register_size (gdbarch, reg->regnum));
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf, &remote_protocol_packets[PACKET_P]))
{
return 1;
case PACKET_ERROR:
error (_("Could not write register \"%s\"; remote failure reply '%s'"),
- gdbarch_register_name (gdbarch, reg->regnum), rs->buf);
+ gdbarch_register_name (gdbarch, reg->regnum), rs->buf.data ());
case PACKET_UNKNOWN:
return 0;
default:
struct packet_reg *r = &rsa->regs[i];
if (r->in_g_packet)
- regcache_raw_collect (regcache, r->regnum, regs + r->offset);
+ regcache->raw_collect (r->regnum, regs + r->offset);
}
}
/* Command describes registers byte by byte,
each byte encoded as two hex characters. */
- p = rs->buf;
+ p = rs->buf.data ();
*p++ = 'G';
bin2hex (regs, p, rsa->sizeof_g_packet);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (packet_check_result (rs->buf) == PACKET_ERROR)
error (_("Could not write registers; remote failure reply '%s'"),
- rs->buf);
+ rs->buf.data ());
}
/* Store register REGNUM, or all registers if REGNUM == -1, from the contents
int i;
set_remote_traceframe ();
- set_general_thread (regcache_get_ptid (regcache));
+ set_general_thread (regcache->ptid ());
if (regnum >= 0)
{
{
char *p;
- p = rs->buf;
+ p = rs->buf.data ();
*p++ = 'X';
p += hexnumstr (p, (ULONGEST) addr);
*p++ = ',';
*p++ = ':';
*p = '\0';
- putpkt_binary (rs->buf, (int) (p - rs->buf));
- getpkt (&rs->buf, &rs->buf_size, 0);
+ putpkt_binary (rs->buf.data (), (int) (p - rs->buf.data ()));
+ getpkt (&rs->buf, 0);
if (rs->buf[0] == '\0')
{
/* Construct the packet excluding the data: "<header><memaddr>,<len>:". */
- strcat (rs->buf, header);
- p = rs->buf + strlen (header);
+ strcat (rs->buf.data (), header);
+ p = rs->buf.data () + strlen (header);
/* Compute a best guess of the number of bytes actually transfered. */
if (packet_format == 'X')
units_written = todo_units;
}
- putpkt_binary (rs->buf, (int) (p - rs->buf));
- getpkt (&rs->buf, &rs->buf_size, 0);
+ putpkt_binary (rs->buf.data (), (int) (p - rs->buf.data ()));
+ getpkt (&rs->buf, 0);
if (rs->buf[0] == 'E')
return TARGET_XFER_E_IO;
/* Construct "m"<memaddr>","<len>". */
memaddr = remote_address_masked (memaddr);
- p = rs->buf;
+ p = rs->buf.data ();
*p++ = 'm';
p += hexnumstr (p, (ULONGEST) memaddr);
*p++ = ',';
p += hexnumstr (p, (ULONGEST) todo_units);
*p = '\0';
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (rs->buf[0] == 'E'
&& isxdigit (rs->buf[1]) && isxdigit (rs->buf[2])
&& rs->buf[3] == '\0')
return TARGET_XFER_E_IO;
/* Reply describes memory byte by byte, each byte encoded as two hex
characters. */
- p = rs->buf;
+ p = rs->buf.data ();
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);
secp = target_section_by_addr (this, memaddr);
if (secp != NULL
- && (bfd_get_section_flags (secp->the_bfd_section->owner,
- secp->the_bfd_section)
- & SEC_READONLY))
+ && (bfd_section_flags (secp->the_bfd_section) & SEC_READONLY))
{
struct target_section *p;
ULONGEST memend = memaddr + len;
va_start (ap, format);
rs->buf[0] = '\0';
- if (vsnprintf (rs->buf, max_size, format, ap) >= max_size)
+ int size = vsnprintf (rs->buf.data (), max_size, format, ap);
+
+ va_end (ap);
+
+ if (size >= max_size)
internal_error (__FILE__, __LINE__, _("Too long remote packet."));
if (putpkt (rs->buf) < 0)
error (_("Communication problem with target."));
rs->buf[0] = '\0';
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
return packet_check_result (rs->buf);
}
*p = '\0';
int len = (int) (p - buf2);
+ int max_chars;
+
+ if (remote_packet_max_chars < 0)
+ max_chars = len;
+ else
+ max_chars = remote_packet_max_chars;
std::string str
- = escape_buffer (buf2, std::min (len, REMOTE_DEBUG_MAX_CHAR));
+ = escape_buffer (buf2, std::min (len, max_chars));
fprintf_unfiltered (gdb_stdlog, "Sending packet: %s", str.c_str ());
- if (len > REMOTE_DEBUG_MAX_CHAR)
+ if (len > max_chars)
fprintf_unfiltered (gdb_stdlog, "[%d bytes omitted]",
- len - REMOTE_DEBUG_MAX_CHAR);
+ len - max_chars);
fprintf_unfiltered (gdb_stdlog, "...");
for an ack. */
/* We've found the start of a notification. Now
collect the data. */
- val = read_frame (&rs->buf, &rs->buf_size);
+ val = read_frame (&rs->buf);
if (val >= 0)
{
if (remote_debug)
{
- std::string str = escape_buffer (rs->buf, val);
+ std::string str = escape_buffer (rs->buf.data (), val);
fprintf_unfiltered (gdb_stdlog,
" Notification received: %s\n",
str.c_str ());
}
- handle_notification (rs->notif_state, rs->buf);
+ handle_notification (rs->notif_state, rs->buf.data ());
/* We're in sync now, rewait for the ack. */
tcount = 0;
}
fprintf_unfiltered (gdb_stdlog, "putpkt: Junk: ");
}
fputc_unfiltered (ch & 0177, gdb_stdlog);
- fprintf_unfiltered (gdb_stdlog, "%s", rs->buf);
+ fprintf_unfiltered (gdb_stdlog, "%s", rs->buf.data ());
}
}
continue;
/* Come here after finding the start of the frame. Collect the rest
into *BUF, verifying the checksum, length, and handling run-length
compression. NUL terminate the buffer. If there is not enough room,
- expand *BUF using xrealloc.
+ expand *BUF.
Returns -1 on error, number of characters in buffer (ignoring the
trailing NULL) on success. (could be extended to return one of the
SERIAL status indications). */
long
-remote_target::read_frame (char **buf_p, long *sizeof_buf)
+remote_target::read_frame (gdb::char_vector *buf_p)
{
unsigned char csum;
long bc;
int c;
- char *buf = *buf_p;
+ char *buf = buf_p->data ();
struct remote_state *rs = get_remote_state ();
csum = 0;
if (repeat > 0 && repeat <= 255 && bc > 0)
{
- if (bc + repeat - 1 >= *sizeof_buf - 1)
+ if (bc + repeat - 1 >= buf_p->size () - 1)
{
/* Make some more room in the buffer. */
- *sizeof_buf += repeat;
- *buf_p = (char *) xrealloc (*buf_p, *sizeof_buf);
- buf = *buf_p;
+ buf_p->resize (buf_p->size () + repeat);
+ buf = buf_p->data ();
}
memset (&buf[bc], buf[bc - 1], repeat);
return -1;
}
default:
- if (bc >= *sizeof_buf - 1)
+ if (bc >= buf_p->size () - 1)
{
/* Make some more room in the buffer. */
- *sizeof_buf *= 2;
- *buf_p = (char *) xrealloc (*buf_p, *sizeof_buf);
- buf = *buf_p;
+ buf_p->resize (buf_p->size () * 2);
+ buf = buf_p->data ();
}
buf[bc++] = c;
}
}
+/* Set this to the maximum number of seconds to wait instead of waiting forever
+ in target_wait(). If this timer times out, then it generates an error and
+ the command is aborted. This replaces most of the need for timeouts in the
+ GDB test suite, and makes it possible to distinguish between a hung target
+ and one with slow communications. */
+
+static int watchdog = 0;
+static void
+show_watchdog (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("Watchdog timer is %s.\n"), value);
+}
+
/* Read a packet from the remote machine, with error checking, and
- store it in *BUF. Resize *BUF using xrealloc if necessary to hold
- the result, and update *SIZEOF_BUF. If FOREVER, wait forever
- rather than timing out; this is used (in synchronous mode) to wait
- for a target that is is executing user code to stop. */
+ store it in *BUF. Resize *BUF if necessary to hold the result. If
+ FOREVER, wait forever rather than timing out; this is used (in
+ synchronous mode) to wait for a target that is is executing user
+ code to stop. */
/* FIXME: ezannoni 2000-02-01 this wrapper is necessary so that we
don't have to change all the calls to getpkt to deal with the
return value, because at the moment I don't know what the right
thing to do it for those. */
void
-remote_target::getpkt (char **buf, long *sizeof_buf, int forever)
+remote_target::getpkt (gdb::char_vector *buf, int forever)
{
- getpkt_sane (buf, sizeof_buf, forever);
+ getpkt_sane (buf, forever);
}
/* Read a packet from the remote machine, with error checking, and
- store it in *BUF. Resize *BUF using xrealloc if necessary to hold
- the result, and update *SIZEOF_BUF. If FOREVER, wait forever
- rather than timing out; this is used (in synchronous mode) to wait
- for a target that is is executing user code to stop. If FOREVER ==
- 0, this function is allowed to time out gracefully and return an
- indication of this to the caller. Otherwise return the number of
- bytes read. If EXPECTING_NOTIF, consider receiving a notification
- enough reason to return to the caller. *IS_NOTIF is an output
- boolean that indicates whether *BUF holds a notification or not
- (a regular packet). */
+ store it in *BUF. Resize *BUF if necessary to hold the result. If
+ FOREVER, wait forever rather than timing out; this is used (in
+ synchronous mode) to wait for a target that is is executing user
+ code to stop. If FOREVER == 0, this function is allowed to time
+ out gracefully and return an indication of this to the caller.
+ Otherwise return the number of bytes read. If EXPECTING_NOTIF,
+ consider receiving a notification enough reason to return to the
+ caller. *IS_NOTIF is an output boolean that indicates whether *BUF
+ holds a notification or not (a regular packet). */
int
-remote_target::getpkt_or_notif_sane_1 (char **buf, long *sizeof_buf,
+remote_target::getpkt_or_notif_sane_1 (gdb::char_vector *buf,
int forever, int expecting_notif,
int *is_notif)
{
previously cached response. */
rs->cached_wait_status = 0;
- strcpy (*buf, "timeout");
+ strcpy (buf->data (), "timeout");
if (forever)
timeout = watchdog > 0 ? watchdog : -1;
{
/* We've found the start of a packet or notification.
Now collect the data. */
- val = read_frame (buf, sizeof_buf);
+ val = read_frame (buf);
if (val >= 0)
break;
}
{
if (remote_debug)
{
+ int max_chars;
+
+ if (remote_packet_max_chars < 0)
+ max_chars = val;
+ else
+ max_chars = remote_packet_max_chars;
+
std::string str
- = escape_buffer (*buf,
- std::min (val, REMOTE_DEBUG_MAX_CHAR));
+ = escape_buffer (buf->data (),
+ std::min (val, max_chars));
fprintf_unfiltered (gdb_stdlog, "Packet received: %s",
str.c_str ());
- if (val > REMOTE_DEBUG_MAX_CHAR)
+ if (val > max_chars)
fprintf_unfiltered (gdb_stdlog, "[%d bytes omitted]",
- val - REMOTE_DEBUG_MAX_CHAR);
+ val - max_chars);
fprintf_unfiltered (gdb_stdlog, "\n");
}
if (remote_debug)
{
- std::string str = escape_buffer (*buf, val);
+ std::string str = escape_buffer (buf->data (), val);
fprintf_unfiltered (gdb_stdlog,
" Notification received: %s\n",
if (is_notif != NULL)
*is_notif = 1;
- handle_notification (rs->notif_state, *buf);
+ handle_notification (rs->notif_state, buf->data ());
/* Notifications require no acknowledgement. */
}
int
-remote_target::getpkt_sane (char **buf, long *sizeof_buf, int forever)
+remote_target::getpkt_sane (gdb::char_vector *buf, int forever)
{
- return getpkt_or_notif_sane_1 (buf, sizeof_buf, forever, 0, NULL);
+ return getpkt_or_notif_sane_1 (buf, forever, 0, NULL);
}
int
-remote_target::getpkt_or_notif_sane (char **buf, long *sizeof_buf, int forever,
+remote_target::getpkt_or_notif_sane (gdb::char_vector *buf, int forever,
int *is_notif)
{
- return getpkt_or_notif_sane_1 (buf, sizeof_buf, forever, 1,
- is_notif);
-}
-
-/* Check whether EVENT is a fork event for the process specified
- by the pid passed in DATA, and if it is, kill the fork child. */
-
-int
-remote_kill_child_of_pending_fork (QUEUE (stop_reply_p) *q,
- QUEUE_ITER (stop_reply_p) *iter,
- stop_reply_p event,
- void *data)
-{
- struct queue_iter_param *param = (struct queue_iter_param *) data;
- int parent_pid = *(int *) param->input;
-
- if (is_pending_fork_parent (&event->ws, parent_pid, event->ptid))
- {
- remote_target *remote = param->remote;
- int child_pid = ptid_get_pid (event->ws.value.related_pid);
- int res;
-
- res = remote->remote_vkill (child_pid);
- if (res != 0)
- error (_("Can't kill fork child process %d"), child_pid);
- }
-
- return 1;
+ return getpkt_or_notif_sane_1 (buf, forever, 1, is_notif);
}
/* Kill any new fork children of process PID that haven't been
remote_target::kill_new_fork_children (int pid)
{
remote_state *rs = get_remote_state ();
- struct thread_info *thread;
struct notif_client *notif = ¬if_client_stop;
- struct queue_iter_param param;
/* Kill the fork child threads of any threads in process PID
that are stopped at a fork event. */
- ALL_NON_EXITED_THREADS (thread)
+ for (thread_info *thread : all_non_exited_threads ())
{
struct target_waitstatus *ws = &thread->pending_follow;
if (is_pending_fork_parent (ws, pid, thread->ptid))
{
- int child_pid = ptid_get_pid (ws->value.related_pid);
+ int child_pid = ws->value.related_pid.pid ();
int res;
res = remote_vkill (child_pid);
/* Check for any pending fork events (not reported or processed yet)
in process PID and kill those fork child threads as well. */
remote_notif_get_pending_events (notif);
- param.remote = this;
- param.input = &pid;
- param.output = NULL;
- QUEUE_iterate (stop_reply_p, rs->stop_reply_queue,
- remote_kill_child_of_pending_fork, ¶m);
+ for (auto &event : rs->stop_reply_queue)
+ if (is_pending_fork_parent (&event->ws, pid, event->ptid))
+ {
+ int child_pid = event->ws.value.related_pid.pid ();
+ int res;
+
+ res = remote_vkill (child_pid);
+ if (res != 0)
+ error (_("Can't kill fork child process %d"), child_pid);
+ }
}
\f
remote_target::kill ()
{
int res = -1;
- int pid = ptid_get_pid (inferior_ptid);
+ int pid = inferior_ptid.pid ();
struct remote_state *rs = get_remote_state ();
if (packet_support (PACKET_vKill) != PACKET_DISABLE)
remote_state *rs = get_remote_state ();
/* Tell the remote target to detach. */
- xsnprintf (rs->buf, get_remote_packet_size (), "vKill;%x", pid);
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "vKill;%x", pid);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf,
&remote_protocol_packets[PACKET_vKill]))
{
/* Catch errors so the user can quit from gdb even when we
aren't on speaking terms with the remote system. */
- TRY
+ try
{
putpkt ("k");
}
- CATCH (ex, RETURN_MASK_ERROR)
+ catch (const gdb_exception_error &ex)
{
if (ex.error == TARGET_CLOSE_ERROR)
{
/* Otherwise, something went wrong. We didn't actually kill
the target. Just propagate the exception, and let the
user or higher layers decide what to do. */
- throw_exception (ex);
+ throw;
}
- END_CATCH
}
void
/* Check whether the target is running now - some remote stubs
automatically restart after kill. */
putpkt ("?");
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (rs->buf[0] == 'S' || rs->buf[0] == 'T')
{
struct remote_state *rs = get_remote_state ();
char *reply;
- xsnprintf (rs->buf, get_remote_packet_size (), "QDisableRandomization:%x",
- val);
+ xsnprintf (rs->buf.data (), get_remote_packet_size (),
+ "QDisableRandomization:%x", val);
putpkt (rs->buf);
reply = remote_get_noisy_reply ();
if (*reply == '\0')
if (packet_support (PACKET_vRun) == PACKET_DISABLE)
return -1;
- strcpy (rs->buf, "vRun;");
- len = strlen (rs->buf);
+ strcpy (rs->buf.data (), "vRun;");
+ len = strlen (rs->buf.data ());
if (strlen (remote_exec_file) * 2 + len >= get_remote_packet_size ())
error (_("Remote file name too long for run packet"));
- len += 2 * bin2hex ((gdb_byte *) remote_exec_file, rs->buf + len,
+ len += 2 * bin2hex ((gdb_byte *) remote_exec_file, rs->buf.data () + len,
strlen (remote_exec_file));
if (!args.empty ())
if (strlen (argv[i]) * 2 + 1 + len >= get_remote_packet_size ())
error (_("Argument list too long for run packet"));
rs->buf[len++] = ';';
- len += 2 * bin2hex ((gdb_byte *) argv[i], rs->buf + len,
+ len += 2 * bin2hex ((gdb_byte *) argv[i], rs->buf.data () + len,
strlen (argv[i]));
}
}
rs->buf[len++] = '\0';
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf, &remote_protocol_packets[PACKET_vRun]))
{
std::string encoded_value = bin2hex ((const gdb_byte *) value,
strlen (value));
- xsnprintf (rs->buf, get_remote_packet_size (),
+ xsnprintf (rs->buf.data (), 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)
+ getpkt (&rs->buf, 0);
+ if (strcmp (rs->buf.data (), "OK") != 0)
warning (_("Unable to %s environment variable '%s' on remote."),
action, value);
}
if (packet_support (PACKET_QEnvironmentReset) != PACKET_DISABLE)
{
putpkt ("QEnvironmentReset");
- getpkt (&rs->buf, &rs->buf_size, 0);
- if (strcmp (rs->buf, "OK") != 0)
+ getpkt (&rs->buf, 0);
+ if (strcmp (rs->buf.data (), "OK") != 0)
warning (_("Unable to reset environment on remote."));
}
std::string hexpath = bin2hex ((const gdb_byte *) inferior_cwd,
strlen (inferior_cwd));
- xsnprintf (rs->buf, get_remote_packet_size (),
+ xsnprintf (rs->buf.data (), 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 (),
+ xsnprintf (rs->buf.data (), get_remote_packet_size (),
"QSetWorkingDir:");
}
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 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);
+ rs->buf.data ());
}
}
remote inferior using a shell. */
if (packet_support (PACKET_QStartupWithShell) != PACKET_DISABLE)
{
- xsnprintf (rs->buf, get_remote_packet_size (),
+ xsnprintf (rs->buf.data (), 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)
+ getpkt (&rs->buf, 0);
+ if (strcmp (rs->buf.data (), "OK") != 0)
error (_("\
Remote replied unexpectedly while setting startup-with-shell: %s"),
- rs->buf);
+ rs->buf.data ());
}
extended_remote_environment_support ();
if (remote_exec_file[0])
error (_("Remote target does not support \"set remote exec-file\""));
if (!args.empty ())
- error (_("Remote target does not support \"set args\" or run <ARGS>"));
+ error (_("Remote target does not support \"set args\" or run ARGS"));
/* Fall back to "R". */
extended_remote_restart ();
}
- if (!have_inferiors ())
- {
- /* Clean up from the last time we ran, before we mark the target
- running again. This will mark breakpoints uninserted, and
- get_offsets may insert breakpoints. */
- init_thread_list ();
- init_wait_for_inferior ();
- }
-
/* vRun's success return is a stop reply. */
- stop_reply = run_worked ? rs->buf : NULL;
+ stop_reply = run_worked ? rs->buf.data () : NULL;
add_current_inferior_and_thread (stop_reply);
/* Get updated offsets, if the stub uses qOffsets. */
set_general_process ();
rs = get_remote_state ();
- p = rs->buf;
- endbuf = rs->buf + get_remote_packet_size ();
+ p = rs->buf.data ();
+ endbuf = p + get_remote_packet_size ();
*(p++) = 'Z';
*(p++) = '0';
remote_add_target_side_commands (gdbarch, bp_tgt, p);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf, &remote_protocol_packets[PACKET_Z0]))
{
if (packet_support (PACKET_Z0) != PACKET_DISABLE)
{
- char *p = rs->buf;
- char *endbuf = rs->buf + get_remote_packet_size ();
+ char *p = rs->buf.data ();
+ char *endbuf = p + get_remote_packet_size ();
/* Make sure the remote is pointing at the right process, if
necessary. */
xsnprintf (p, endbuf - p, ",%d", bp_tgt->kind);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
return (rs->buf[0] == 'E');
}
enum target_hw_bp_type type, struct expression *cond)
{
struct remote_state *rs = get_remote_state ();
- char *endbuf = rs->buf + get_remote_packet_size ();
+ char *endbuf = rs->buf.data () + get_remote_packet_size ();
char *p;
enum Z_packet_type packet = watchpoint_to_Z_packet (type);
if (!gdbarch_has_global_breakpoints (target_gdbarch ()))
set_general_process ();
- xsnprintf (rs->buf, endbuf - rs->buf, "Z%x,", packet);
- p = strchr (rs->buf, '\0');
+ xsnprintf (rs->buf.data (), endbuf - rs->buf.data (), "Z%x,", packet);
+ p = strchr (rs->buf.data (), '\0');
addr = remote_address_masked (addr);
p += hexnumstr (p, (ULONGEST) addr);
xsnprintf (p, endbuf - p, ",%x", len);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf, &remote_protocol_packets[PACKET_Z0 + packet]))
{
enum target_hw_bp_type type, struct expression *cond)
{
struct remote_state *rs = get_remote_state ();
- char *endbuf = rs->buf + get_remote_packet_size ();
+ char *endbuf = rs->buf.data () + get_remote_packet_size ();
char *p;
enum Z_packet_type packet = watchpoint_to_Z_packet (type);
if (!gdbarch_has_global_breakpoints (target_gdbarch ()))
set_general_process ();
- xsnprintf (rs->buf, endbuf - rs->buf, "z%x,", packet);
- p = strchr (rs->buf, '\0');
+ xsnprintf (rs->buf.data (), endbuf - rs->buf.data (), "z%x,", packet);
+ p = strchr (rs->buf.data (), '\0');
addr = remote_address_masked (addr);
p += hexnumstr (p, (ULONGEST) addr);
xsnprintf (p, endbuf - p, ",%x", len);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf, &remote_protocol_packets[PACKET_Z0 + packet]))
{
}
-int remote_hw_watchpoint_limit = -1;
-int remote_hw_watchpoint_length_limit = -1;
-int remote_hw_breakpoint_limit = -1;
+static int remote_hw_watchpoint_limit = -1;
+static int remote_hw_watchpoint_length_limit = -1;
+static int remote_hw_breakpoint_limit = -1;
int
remote_target::region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
set_general_process ();
rs = get_remote_state ();
- p = rs->buf;
- endbuf = rs->buf + get_remote_packet_size ();
+ p = rs->buf.data ();
+ endbuf = p + get_remote_packet_size ();
*(p++) = 'Z';
*(p++) = '1';
remote_add_target_side_commands (gdbarch, bp_tgt, p);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf, &remote_protocol_packets[PACKET_Z1]))
{
case PACKET_ERROR:
if (rs->buf[1] == '.')
{
- message = strchr (rs->buf + 2, '.');
+ message = strchr (&rs->buf[2], '.');
if (message)
error (_("Remote failure reply: %s"), message + 1);
}
{
CORE_ADDR addr;
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
- char *endbuf = rs->buf + get_remote_packet_size ();
+ char *p = rs->buf.data ();
+ char *endbuf = p + get_remote_packet_size ();
if (packet_support (PACKET_Z1) == PACKET_DISABLE)
return -1;
xsnprintf (p, endbuf - p, ",%x", bp_tgt->kind);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf, &remote_protocol_packets[PACKET_Z1]))
{
set_general_process ();
/* FIXME: assumes lma can fit into long. */
- xsnprintf (rs->buf, get_remote_packet_size (), "qCRC:%lx,%lx",
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "qCRC:%lx,%lx",
(long) lma, (long) size);
putpkt (rs->buf);
reply. */
host_crc = xcrc32 (data, size, 0xffffffff);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
result = packet_ok (rs->buf,
&remote_protocol_packets[PACKET_qCRC]);
if (read_only && (s->flags & SEC_READONLY) == 0)
continue; /* Skip writeable sections */
- size = bfd_get_section_size (s);
+ size = bfd_section_size (s);
if (size == 0)
continue; /* Skip zero-length section. */
- sectname = bfd_get_section_name (exec_bfd, s);
+ sectname = bfd_section_name (s);
if (args && strcmp (args, sectname) != 0)
continue; /* Not the section selected by user. */
return TARGET_XFER_E_IO;
/* Insert header. */
- i = snprintf (rs->buf, max_size,
+ i = snprintf (rs->buf.data (), max_size,
"qXfer:%s:write:%s:%s:",
object_name, annex ? annex : "",
phex_nz (offset, sizeof offset));
/* Escape as much data as fits into rs->buf. */
buf_len = remote_escape_output
- (writebuf, len, 1, (gdb_byte *) rs->buf + i, &max_size, max_size);
+ (writebuf, len, 1, (gdb_byte *) rs->buf.data () + i, &max_size, max_size);
- if (putpkt_binary (rs->buf, i + buf_len) < 0
- || getpkt_sane (&rs->buf, &rs->buf_size, 0) < 0
+ if (putpkt_binary (rs->buf.data (), i + buf_len) < 0
+ || getpkt_sane (&rs->buf, 0) < 0
|| packet_ok (rs->buf, packet) != PACKET_OK)
return TARGET_XFER_E_IO;
- unpack_varlen_hex (rs->buf, &n);
+ unpack_varlen_hex (rs->buf.data (), &n);
*xfered_len = n;
return (*xfered_len != 0) ? TARGET_XFER_OK : TARGET_XFER_EOF;
the target is free to respond with slightly less data. We subtract
five to account for the response type and the protocol frame. */
n = std::min<LONGEST> (get_remote_packet_size () - 5, len);
- snprintf (rs->buf, get_remote_packet_size () - 4, "qXfer:%s:read:%s:%s,%s",
+ snprintf (rs->buf.data (), get_remote_packet_size () - 4,
+ "qXfer:%s:read:%s:%s,%s",
object_name, annex ? annex : "",
phex_nz (offset, sizeof offset),
phex_nz (n, sizeof n));
return TARGET_XFER_E_IO;
rs->buf[0] = '\0';
- packet_len = getpkt_sane (&rs->buf, &rs->buf_size, 0);
+ packet_len = getpkt_sane (&rs->buf, 0);
if (packet_len < 0 || packet_ok (rs->buf, packet) != PACKET_OK)
return TARGET_XFER_E_IO;
if (rs->buf[0] != 'l' && rs->buf[0] != 'm')
- error (_("Unknown remote qXfer reply: %s"), rs->buf);
+ error (_("Unknown remote qXfer reply: %s"), rs->buf.data ());
/* 'm' means there is (or at least might be) more data after this
batch. That does not make sense unless there's at least one byte
error (_("Remote qXfer reply contained no data."));
/* Got some data. */
- i = remote_unescape_input ((gdb_byte *) rs->buf + 1,
+ i = remote_unescape_input ((gdb_byte *) rs->buf.data () + 1,
packet_len - 1, readbuf, n);
/* 'l' is an EOF marker, possibly including a final block of data,
xfered_len);
}
- /* Handle SPU memory using qxfer packets. */
- if (object == TARGET_OBJECT_SPU)
- {
- if (readbuf)
- return remote_read_qxfer ("spu", annex, readbuf, offset, len,
- xfered_len, &remote_protocol_packets
- [PACKET_qXfer_spu_read]);
- else
- return remote_write_qxfer ("spu", annex, writebuf, offset, len,
- xfered_len, &remote_protocol_packets
- [PACKET_qXfer_spu_write]);
- }
-
/* Handle extra signal info using qxfer packets. */
if (object == TARGET_OBJECT_SIGNAL_INFO)
{
gdb_assert (annex != NULL);
gdb_assert (readbuf != NULL);
- p2 = rs->buf;
+ p2 = rs->buf.data ();
*p2++ = 'q';
*p2++ = query_type;
if (i < 0)
return TARGET_XFER_E_IO;
- getpkt (&rs->buf, &rs->buf_size, 0);
- strcpy ((char *) readbuf, rs->buf);
+ getpkt (&rs->buf, 0);
+ strcpy ((char *) readbuf, rs->buf.data ());
*xfered_len = strlen ((char *) readbuf);
return (*xfered_len != 0) ? TARGET_XFER_OK : TARGET_XFER_EOF;
set_general_process ();
/* Insert header. */
- i = snprintf (rs->buf, max_size,
+ i = snprintf (rs->buf.data (), max_size,
"qSearch:memory:%s;%s;",
phex_nz (start_addr, addr_size),
phex_nz (search_space_len, sizeof (search_space_len)));
/* Escape as much data as fits into rs->buf. */
escaped_pattern_len =
- remote_escape_output (pattern, pattern_len, 1, (gdb_byte *) rs->buf + i,
+ remote_escape_output (pattern, pattern_len, 1,
+ (gdb_byte *) rs->buf.data () + i,
&used_pattern_len, max_size);
/* Bail if the pattern is too large. */
if (used_pattern_len != pattern_len)
error (_("Pattern is too large to transmit to remote target."));
- if (putpkt_binary (rs->buf, i + escaped_pattern_len) < 0
- || getpkt_sane (&rs->buf, &rs->buf_size, 0) < 0
+ if (putpkt_binary (rs->buf.data (), i + escaped_pattern_len) < 0
+ || getpkt_sane (&rs->buf, 0) < 0
|| packet_ok (rs->buf, packet) != PACKET_OK)
{
/* The request may not have worked because the command is not
{
found = 1;
if (rs->buf[1] != ',')
- error (_("Unknown qSearch:memory reply: %s"), rs->buf);
- unpack_varlen_hex (rs->buf + 2, &found_addr);
+ error (_("Unknown qSearch:memory reply: %s"), rs->buf.data ());
+ unpack_varlen_hex (&rs->buf[2], &found_addr);
*found_addrp = found_addr;
}
else
- error (_("Unknown qSearch:memory reply: %s"), rs->buf);
+ error (_("Unknown qSearch:memory reply: %s"), rs->buf.data ());
return found;
}
remote_target::rcmd (const char *command, struct ui_file *outbuf)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
+ char *p = rs->buf.data ();
if (!rs->remote_desc)
error (_("remote rcmd is only available after target open"));
command = "";
/* The query prefix. */
- strcpy (rs->buf, "qRcmd,");
- p = strchr (rs->buf, '\0');
+ strcpy (rs->buf.data (), "qRcmd,");
+ p = strchr (rs->buf.data (), '\0');
- if ((strlen (rs->buf) + strlen (command) * 2 + 8/*misc*/)
+ if ((strlen (rs->buf.data ()) + strlen (command) * 2 + 8/*misc*/)
> get_remote_packet_size ())
error (_("\"monitor\" command ``%s'' is too long."), command);
/* XXX - see also remote_get_noisy_reply(). */
QUIT; /* Allow user to bail out with ^C. */
rs->buf[0] = '\0';
- if (getpkt_sane (&rs->buf, &rs->buf_size, 0) == -1)
+ if (getpkt_sane (&rs->buf, 0) == -1)
{
/* Timeout. Continue to (try to) read responses.
This is better than stopping with an error, assuming the stub
an effect similar to stop on timeout. */
continue;
}
- buf = rs->buf;
+ buf = rs->buf.data ();
if (buf[0] == '\0')
error (_("Target does not support this command."));
if (buf[0] == 'O' && buf[1] != 'K')
{
std::vector<mem_region> result;
gdb::optional<gdb::char_vector> text
- = target_read_stralloc (target_stack, TARGET_OBJECT_MEMORY_MAP, NULL);
+ = target_read_stralloc (current_top_target (), TARGET_OBJECT_MEMORY_MAP, NULL);
if (text)
result = parse_memory_map (text->data ());
remote_state *rs = get_remote_state ();
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
puts_filtered ("received: ");
- print_packet (rs->buf);
+ print_packet (rs->buf.data ());
puts_filtered ("\n");
}
threadalive_test (const char *cmd, int tty)
{
int sample_thread = SAMPLE_THREAD;
- int pid = ptid_get_pid (inferior_ptid);
- ptid_t ptid = ptid_build (pid, sample_thread, 0);
+ int pid = inferior_ptid.pid ();
+ ptid_t ptid = ptid_t (pid, sample_thread, 0);
if (remote_thread_alive (ptid))
printf_filtered ("PASS: Thread alive test\n");
{
char hexid[20];
- pack_threadid (&hexid[0], ref); /* Convert threead id into hex. */
+ pack_threadid (&hexid[0], ref); /* Convert thread id into hex. */
hexid[16] = 0;
printf_filtered ("%s %s\n", title, (&hexid[0]));
}
{
add_com ("tlist", class_obscure, threadlist_test_cmd,
_("Fetch and print the remote list of "
- "thread identifiers, one pkt only"));
+ "thread identifiers, one pkt only."));
add_com ("tinfo", class_obscure, threadinfo_test_cmd,
- _("Fetch and display info about one thread"));
+ _("Fetch and display info about one thread."));
add_com ("tset", class_obscure, threadset_test_cmd,
- _("Test setting to a different thread"));
+ _("Test setting to a different thread."));
add_com ("tupd", class_obscure, threadlist_update_test_cmd,
- _("Iterate through updating all remote thread info"));
+ _("Iterate through updating all remote thread info."));
add_com ("talive", class_obscure, threadalive_test,
- _(" Remote thread alive test "));
+ _("Remote thread alive test."));
}
#endif /* 0 */
-/* Convert a thread ID to a string. Returns the string in a static
- buffer. */
+/* Convert a thread ID to a string. */
-const char *
+std::string
remote_target::pid_to_str (ptid_t ptid)
{
- static char buf[64];
struct remote_state *rs = get_remote_state ();
- if (ptid_equal (ptid, null_ptid))
+ if (ptid == null_ptid)
return normal_pid_to_str (ptid);
- else if (ptid_is_pid (ptid))
+ else if (ptid.is_pid ())
{
/* Printing an inferior target id. */
attached to a process, and reporting yes to qAttached, hence
no smart special casing here. */
if (!remote_multi_process_p (rs))
- {
- xsnprintf (buf, sizeof buf, "Remote target");
- return buf;
- }
+ return "Remote target";
return normal_pid_to_str (ptid);
}
else
{
- if (ptid_equal (magic_null_ptid, ptid))
- xsnprintf (buf, sizeof buf, "Thread <main>");
+ if (magic_null_ptid == ptid)
+ return "Thread <main>";
else if (remote_multi_process_p (rs))
- if (ptid_get_lwp (ptid) == 0)
+ if (ptid.lwp () == 0)
return normal_pid_to_str (ptid);
else
- xsnprintf (buf, sizeof buf, "Thread %d.%ld",
- ptid_get_pid (ptid), ptid_get_lwp (ptid));
+ return string_printf ("Thread %d.%ld",
+ ptid.pid (), ptid.lwp ());
else
- xsnprintf (buf, sizeof buf, "Thread %ld",
- ptid_get_lwp (ptid));
- return buf;
+ return string_printf ("Thread %ld", ptid.lwp ());
}
}
if (packet_support (PACKET_qGetTLSAddr) != PACKET_DISABLE)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
- char *endp = rs->buf + get_remote_packet_size ();
+ char *p = rs->buf.data ();
+ char *endp = p + get_remote_packet_size ();
enum packet_result result;
strcpy (p, "qGetTLSAddr:");
*p++ = '\0';
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
result = packet_ok (rs->buf,
&remote_protocol_packets[PACKET_qGetTLSAddr]);
if (result == PACKET_OK)
{
- ULONGEST result;
+ ULONGEST addr;
- unpack_varlen_hex (rs->buf, &result);
- return result;
+ unpack_varlen_hex (rs->buf.data (), &addr);
+ return addr;
}
else if (result == PACKET_UNKNOWN)
throw_error (TLS_GENERIC_ERROR,
if (packet_support (PACKET_qGetTIBAddr) != PACKET_DISABLE)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
- char *endp = rs->buf + get_remote_packet_size ();
+ char *p = rs->buf.data ();
+ char *endp = p + get_remote_packet_size ();
enum packet_result result;
strcpy (p, "qGetTIBAddr:");
*p++ = '\0';
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
result = packet_ok (rs->buf,
&remote_protocol_packets[PACKET_qGetTIBAddr]);
if (result == PACKET_OK)
{
- ULONGEST result;
-
- unpack_varlen_hex (rs->buf, &result);
+ ULONGEST val;
+ unpack_varlen_hex (rs->buf.data (), &val);
if (addr)
- *addr = (CORE_ADDR) result;
+ *addr = (CORE_ADDR) val;
return true;
}
else if (result == PACKET_UNKNOWN)
struct remote_g_packet_guess
{
+ remote_g_packet_guess (int bytes_, const struct target_desc *tdesc_)
+ : bytes (bytes_),
+ tdesc (tdesc_)
+ {
+ }
+
int bytes;
const struct target_desc *tdesc;
};
-typedef struct remote_g_packet_guess remote_g_packet_guess_s;
-DEF_VEC_O(remote_g_packet_guess_s);
-struct remote_g_packet_data
+struct remote_g_packet_data : public allocate_on_obstack
{
- VEC(remote_g_packet_guess_s) *guesses;
+ std::vector<remote_g_packet_guess> guesses;
};
static struct gdbarch_data *remote_g_packet_data_handle;
static void *
remote_g_packet_data_init (struct obstack *obstack)
{
- return OBSTACK_ZALLOC (obstack, struct remote_g_packet_data);
+ return new (obstack) remote_g_packet_data;
}
void
struct remote_g_packet_data *data
= ((struct remote_g_packet_data *)
gdbarch_data (gdbarch, remote_g_packet_data_handle));
- struct remote_g_packet_guess new_guess, *guess;
- int ix;
gdb_assert (tdesc != NULL);
- for (ix = 0;
- VEC_iterate (remote_g_packet_guess_s, data->guesses, ix, guess);
- ix++)
- if (guess->bytes == bytes)
+ for (const remote_g_packet_guess &guess : data->guesses)
+ if (guess.bytes == bytes)
internal_error (__FILE__, __LINE__,
_("Duplicate g packet description added for size %d"),
bytes);
- new_guess.bytes = bytes;
- new_guess.tdesc = tdesc;
- VEC_safe_push (remote_g_packet_guess_s, data->guesses, &new_guess);
+ data->guesses.emplace_back (bytes, tdesc);
}
-/* Return 1 if remote_read_description would do anything on this target
- and architecture, 0 otherwise. */
+/* Return true if remote_read_description would do anything on this target
+ and architecture, false otherwise. */
-static int
+static bool
remote_read_description_p (struct target_ops *target)
{
struct remote_g_packet_data *data
= ((struct remote_g_packet_data *)
gdbarch_data (target_gdbarch (), remote_g_packet_data_handle));
- if (!VEC_empty (remote_g_packet_guess_s, data->guesses))
- return 1;
-
- return 0;
+ return !data->guesses.empty ();
}
const struct target_desc *
/* Do not try this during initial connection, when we do not know
whether there is a running but stopped thread. */
- if (!target_has_execution || ptid_equal (inferior_ptid, null_ptid))
- return beneath->read_description ();
+ if (!target_has_execution || inferior_ptid == null_ptid)
+ return beneath ()->read_description ();
- if (!VEC_empty (remote_g_packet_guess_s, data->guesses))
+ if (!data->guesses.empty ())
{
- struct remote_g_packet_guess *guess;
- int ix;
int bytes = send_g_packet ();
- for (ix = 0;
- VEC_iterate (remote_g_packet_guess_s, data->guesses, ix, guess);
- ix++)
- if (guess->bytes == bytes)
- return guess->tdesc;
+ for (const remote_g_packet_guess &guess : data->guesses)
+ if (guess.bytes == bytes)
+ return guess.tdesc;
/* We discard the g packet. A minor optimization would be to
hold on to it, and fill the register cache once we have selected
an architecture, but it's too tricky to do safely. */
}
- return beneath->read_description ();
+ return beneath ()->read_description ();
}
/* Remote file transfer support. This is host-initiated I/O, not
return -1;
}
- putpkt_binary (rs->buf, command_bytes);
- bytes_read = getpkt_sane (&rs->buf, &rs->buf_size, 0);
+ putpkt_binary (rs->buf.data (), command_bytes);
+ bytes_read = getpkt_sane (&rs->buf, 0);
/* If it timed out, something is wrong. Don't try to parse the
buffer. */
break;
}
- if (remote_hostio_parse_result (rs->buf, &ret, remote_errno,
+ if (remote_hostio_parse_result (rs->buf.data (), &ret, remote_errno,
&attachment_tmp))
{
*remote_errno = FILEIO_EINVAL;
if (attachment_tmp != NULL)
{
*attachment = attachment_tmp;
- *attachment_len = bytes_read - (*attachment - rs->buf);
+ *attachment_len = bytes_read - (*attachment - rs->buf.data ());
}
return ret;
{
struct remote_state *rs = get_remote_state ();
int required_pid = (inf == NULL || inf->fake_pid_p) ? 0 : inf->pid;
- char *p = rs->buf;
+ char *p = rs->buf.data ();
int left = get_remote_packet_size () - 1;
char arg[9];
int ret;
xsnprintf (arg, sizeof (arg), "%x", required_pid);
remote_buffer_add_string (&p, &left, arg);
- ret = remote_hostio_send_command (p - rs->buf, PACKET_vFile_setfs,
+ ret = remote_hostio_send_command (p - rs->buf.data (), PACKET_vFile_setfs,
remote_errno, NULL, NULL);
if (packet_support (PACKET_vFile_setfs) == PACKET_DISABLE)
int *remote_errno)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
+ char *p = rs->buf.data ();
int left = get_remote_packet_size () - 1;
if (warn_if_slow)
remote_buffer_add_int (&p, &left, mode);
- return remote_hostio_send_command (p - rs->buf, PACKET_vFile_open,
+ return remote_hostio_send_command (p - rs->buf.data (), PACKET_vFile_open,
remote_errno, NULL, NULL);
}
ULONGEST offset, int *remote_errno)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
+ char *p = rs->buf.data ();
int left = get_remote_packet_size ();
int out_len;
remote_buffer_add_string (&p, &left, ",");
p += remote_escape_output (write_buf, len, 1, (gdb_byte *) p, &out_len,
- get_remote_packet_size () - (p - rs->buf));
+ (get_remote_packet_size ()
+ - (p - rs->buf.data ())));
- return remote_hostio_send_command (p - rs->buf, PACKET_vFile_pwrite,
+ return remote_hostio_send_command (p - rs->buf.data (), PACKET_vFile_pwrite,
remote_errno, NULL, NULL);
}
ULONGEST offset, int *remote_errno)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
+ char *p = rs->buf.data ();
char *attachment;
int left = get_remote_packet_size ();
int ret, attachment_len;
remote_buffer_add_int (&p, &left, offset);
- ret = remote_hostio_send_command (p - rs->buf, PACKET_vFile_pread,
+ ret = remote_hostio_send_command (p - rs->buf.data (), PACKET_vFile_pread,
remote_errno, &attachment,
&attachment_len);
remote_target::remote_hostio_close (int fd, int *remote_errno)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
+ char *p = rs->buf.data ();
int left = get_remote_packet_size () - 1;
rs->readahead_cache.invalidate_fd (fd);
remote_buffer_add_int (&p, &left, fd);
- return remote_hostio_send_command (p - rs->buf, PACKET_vFile_close,
+ return remote_hostio_send_command (p - rs->buf.data (), PACKET_vFile_close,
remote_errno, NULL, NULL);
}
int *remote_errno)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
+ char *p = rs->buf.data ();
int left = get_remote_packet_size () - 1;
if (remote_hostio_set_filesystem (inf, remote_errno) != 0)
remote_buffer_add_bytes (&p, &left, (const gdb_byte *) filename,
strlen (filename));
- return remote_hostio_send_command (p - rs->buf, PACKET_vFile_unlink,
+ return remote_hostio_send_command (p - rs->buf.data (), PACKET_vFile_unlink,
remote_errno, NULL, NULL);
}
int *remote_errno)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
+ char *p = rs->buf.data ();
char *attachment;
int left = get_remote_packet_size ();
int len, attachment_len;
remote_buffer_add_bytes (&p, &left, (const gdb_byte *) filename,
strlen (filename));
- len = remote_hostio_send_command (p - rs->buf, PACKET_vFile_readlink,
+ len = remote_hostio_send_command (p - rs->buf.data (), PACKET_vFile_readlink,
remote_errno, &attachment,
&attachment_len);
remote_target::fileio_fstat (int fd, struct stat *st, int *remote_errno)
{
struct remote_state *rs = get_remote_state ();
- char *p = rs->buf;
+ char *p = rs->buf.data ();
int left = get_remote_packet_size ();
int attachment_len, ret;
char *attachment;
remote_buffer_add_int (&p, &left, fd);
- ret = remote_hostio_send_command (p - rs->buf, PACKET_vFile_fstat,
+ ret = remote_hostio_send_command (p - rs->buf.data (), PACKET_vFile_fstat,
remote_errno, &attachment,
&attachment_len);
if (ret < 0)
DISABLE_COPY_AND_ASSIGN (scoped_remote_fd);
/* Release ownership of the file descriptor, and return it. */
- int release () noexcept
+ ATTRIBUTE_UNUSED_RESULT int release () noexcept
{
int fd = m_fd;
m_fd = -1;
remote_target::remote_file_put (const char *local_file, const char *remote_file,
int from_tty)
{
- struct cleanup *back_to;
int retcode, remote_errno, bytes, io_size;
- gdb_byte *buffer;
int bytes_in_buffer;
int saw_eof;
ULONGEST offset;
/* 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);
- back_to = make_cleanup (xfree, buffer);
+ gdb::byte_vector buffer (io_size);
bytes_in_buffer = 0;
saw_eof = 0;
{
if (!saw_eof)
{
- bytes = fread (buffer + bytes_in_buffer, 1,
+ bytes = fread (buffer.data () + bytes_in_buffer, 1,
io_size - bytes_in_buffer,
file.get ());
if (bytes == 0)
bytes += bytes_in_buffer;
bytes_in_buffer = 0;
- retcode = remote_hostio_pwrite (fd.get (), buffer, bytes,
+ retcode = remote_hostio_pwrite (fd.get (), buffer.data (), bytes,
offset, &remote_errno);
if (retcode < 0)
/* Short write. Save the rest of the read data for the next
write. */
bytes_in_buffer = bytes - retcode;
- memmove (buffer, buffer + retcode, bytes_in_buffer);
+ memmove (buffer.data (), buffer.data () + retcode, bytes_in_buffer);
}
offset += retcode;
if (from_tty)
printf_filtered (_("Successfully sent file \"%s\".\n"), local_file);
- do_cleanups (back_to);
}
void
remote_target::remote_file_get (const char *remote_file, const char *local_file,
int from_tty)
{
- struct cleanup *back_to;
int remote_errno, bytes, io_size;
- gdb_byte *buffer;
ULONGEST offset;
scoped_remote_fd fd
/* 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);
- back_to = make_cleanup (xfree, buffer);
+ gdb::byte_vector buffer (io_size);
offset = 0;
while (1)
{
- bytes = remote_hostio_pread (fd.get (), buffer, io_size, offset,
+ bytes = remote_hostio_pread (fd.get (), buffer.data (), io_size, offset,
&remote_errno);
if (bytes == 0)
/* Success, but no bytes, means end-of-file. */
offset += bytes;
- bytes = fwrite (buffer, 1, bytes, file.get ());
+ bytes = fwrite (buffer.data (), 1, bytes, file.get ());
if (bytes == 0)
perror_with_name (local_file);
}
if (from_tty)
printf_filtered (_("Successfully fetched file \"%s\".\n"), remote_file);
- do_cleanups (back_to);
}
void
putpkt ("QTinit");
remote_get_noisy_reply ();
- if (strcmp (rs->buf, "OK") != 0)
+ if (strcmp (rs->buf.data (), "OK") != 0)
error (_("Target does not support this command."));
}
for (cmd = cmds; cmd; cmd = cmd->next)
{
QUIT; /* Allow user to bail out with ^C. */
- strcpy (rs->buf, "QTDPsrc:");
+ strcpy (rs->buf.data (), "QTDPsrc:");
encode_source_string (num, addr, "cmd", cmd->line,
- rs->buf + strlen (rs->buf),
- rs->buf_size - strlen (rs->buf));
+ rs->buf.data () + strlen (rs->buf.data ()),
+ rs->buf.size () - strlen (rs->buf.data ()));
putpkt (rs->buf);
remote_get_noisy_reply ();
- if (strcmp (rs->buf, "OK"))
+ if (strcmp (rs->buf.data (), "OK"))
warning (_("Target does not support source download."));
if (cmd->control_type == while_control
remote_download_command_source (num, addr, cmd->body_list_0.get ());
QUIT; /* Allow user to bail out with ^C. */
- strcpy (rs->buf, "QTDPsrc:");
+ strcpy (rs->buf.data (), "QTDPsrc:");
encode_source_string (num, addr, "cmd", "end",
- rs->buf + strlen (rs->buf),
- rs->buf_size - strlen (rs->buf));
+ rs->buf.data () + strlen (rs->buf.data ()),
+ rs->buf.size () - strlen (rs->buf.data ()));
putpkt (rs->buf);
remote_get_noisy_reply ();
- if (strcmp (rs->buf, "OK"))
+ if (strcmp (rs->buf.data (), "OK"))
warning (_("Target does not support source download."));
}
}
void
remote_target::download_tracepoint (struct bp_location *loc)
{
-#define BUF_SIZE 2048
-
CORE_ADDR tpaddr;
char addrbuf[40];
- char buf[BUF_SIZE];
std::vector<std::string> tdp_actions;
std::vector<std::string> stepping_actions;
char *pkt;
struct breakpoint *b = loc->owner;
struct tracepoint *t = (struct tracepoint *) b;
struct remote_state *rs = get_remote_state ();
+ int ret;
+ const char *err_msg = _("Tracepoint packet too large for target.");
+ size_t size_left;
+
+ /* We use a buffer other than rs->buf because we'll build strings
+ across multiple statements, and other statements in between could
+ modify rs->buf. */
+ gdb::char_vector buf (get_remote_packet_size ());
encode_actions_rsp (loc, &tdp_actions, &stepping_actions);
tpaddr = loc->address;
sprintf_vma (addrbuf, tpaddr);
- xsnprintf (buf, BUF_SIZE, "QTDP:%x:%s:%c:%lx:%x", b->number,
- addrbuf, /* address */
- (b->enable_state == bp_enabled ? 'E' : 'D'),
- t->step_count, t->pass_count);
+ ret = snprintf (buf.data (), buf.size (), "QTDP:%x:%s:%c:%lx:%x",
+ b->number, addrbuf, /* address */
+ (b->enable_state == bp_enabled ? 'E' : 'D'),
+ t->step_count, t->pass_count);
+
+ if (ret < 0 || ret >= buf.size ())
+ error ("%s", err_msg);
+
/* Fast tracepoints are mostly handled by the target, but we can
tell the target how big of an instruction block should be moved
around. */
{
if (gdbarch_fast_tracepoint_valid_at (loc->gdbarch, tpaddr,
NULL))
- xsnprintf (buf + strlen (buf), BUF_SIZE - strlen (buf), ":F%x",
- gdb_insn_length (loc->gdbarch, tpaddr));
+ {
+ size_left = buf.size () - strlen (buf.data ());
+ ret = snprintf (buf.data () + strlen (buf.data ()),
+ size_left, ":F%x",
+ gdb_insn_length (loc->gdbarch, tpaddr));
+
+ if (ret < 0 || ret >= size_left)
+ error ("%s", err_msg);
+ }
else
/* If it passed validation at definition but fails now,
something is very wrong. */
struct static_tracepoint_marker marker;
if (target_static_tracepoint_marker_at (tpaddr, &marker))
- strcat (buf, ":S");
+ {
+ size_left = buf.size () - strlen (buf.data ());
+ ret = snprintf (buf.data () + strlen (buf.data ()),
+ size_left, ":S");
+
+ if (ret < 0 || ret >= size_left)
+ error ("%s", err_msg);
+ }
else
error (_("Static tracepoint not valid during download"));
}
capabilities at definition time. */
if (remote_supports_cond_tracepoints ())
{
- agent_expr_up aexpr = gen_eval_for_expr (tpaddr, loc->cond.get ());
- xsnprintf (buf + strlen (buf), BUF_SIZE - strlen (buf), ":X%x,",
- aexpr->len);
- pkt = buf + strlen (buf);
+ agent_expr_up aexpr = gen_eval_for_expr (tpaddr,
+ loc->cond.get ());
+
+ size_left = buf.size () - strlen (buf.data ());
+
+ ret = snprintf (buf.data () + strlen (buf.data ()),
+ size_left, ":X%x,", aexpr->len);
+
+ if (ret < 0 || ret >= size_left)
+ error ("%s", err_msg);
+
+ size_left = buf.size () - strlen (buf.data ());
+
+ /* Two bytes to encode each aexpr byte, plus the terminating
+ null byte. */
+ if (aexpr->len * 2 + 1 > size_left)
+ error ("%s", err_msg);
+
+ pkt = buf.data () + strlen (buf.data ());
+
for (int ndx = 0; ndx < aexpr->len; ++ndx)
pkt = pack_hex_byte (pkt, aexpr->buf[ndx]);
*pkt = '\0';
}
if (b->commands || *default_collect)
- strcat (buf, "-");
- putpkt (buf);
+ {
+ size_left = buf.size () - strlen (buf.data ());
+
+ ret = snprintf (buf.data () + strlen (buf.data ()),
+ size_left, "-");
+
+ if (ret < 0 || ret >= size_left)
+ error ("%s", err_msg);
+ }
+
+ putpkt (buf.data ());
remote_get_noisy_reply ();
- if (strcmp (rs->buf, "OK"))
+ if (strcmp (rs->buf.data (), "OK"))
error (_("Target does not support tracepoints."));
/* do_single_steps (t); */
{
QUIT; /* Allow user to bail out with ^C. */
- bool has_more = (action_it != tdp_actions.end ()
+ bool has_more = ((action_it + 1) != tdp_actions.end ()
|| !stepping_actions.empty ());
- xsnprintf (buf, BUF_SIZE, "QTDP:-%x:%s:%s%c",
- b->number, addrbuf, /* address */
- action_it->c_str (),
- has_more ? '-' : 0);
- putpkt (buf);
+ ret = snprintf (buf.data (), buf.size (), "QTDP:-%x:%s:%s%c",
+ b->number, addrbuf, /* address */
+ action_it->c_str (),
+ has_more ? '-' : 0);
+
+ if (ret < 0 || ret >= buf.size ())
+ error ("%s", err_msg);
+
+ putpkt (buf.data ());
remote_get_noisy_reply ();
- if (strcmp (rs->buf, "OK"))
+ if (strcmp (rs->buf.data (), "OK"))
error (_("Error on target while setting tracepoints."));
}
- for (auto action_it = stepping_actions.begin ();
- action_it != stepping_actions.end (); action_it++)
- {
- QUIT; /* Allow user to bail out with ^C. */
-
- bool is_first = action_it == stepping_actions.begin ();
- bool has_more = action_it != stepping_actions.end ();
-
- xsnprintf (buf, BUF_SIZE, "QTDP:-%x:%s:%s%s%s",
- b->number, addrbuf, /* address */
- is_first ? "S" : "",
- action_it->c_str (),
- has_more ? "-" : "");
- putpkt (buf);
- remote_get_noisy_reply ();
- if (strcmp (rs->buf, "OK"))
- error (_("Error on target while setting tracepoints."));
- }
+ for (auto action_it = stepping_actions.begin ();
+ action_it != stepping_actions.end (); action_it++)
+ {
+ QUIT; /* Allow user to bail out with ^C. */
+
+ bool is_first = action_it == stepping_actions.begin ();
+ bool has_more = (action_it + 1) != stepping_actions.end ();
+
+ ret = snprintf (buf.data (), buf.size (), "QTDP:-%x:%s:%s%s%s",
+ b->number, addrbuf, /* address */
+ is_first ? "S" : "",
+ action_it->c_str (),
+ has_more ? "-" : "");
+
+ if (ret < 0 || ret >= buf.size ())
+ error ("%s", err_msg);
+
+ putpkt (buf.data ());
+ remote_get_noisy_reply ();
+ if (strcmp (rs->buf.data (), "OK"))
+ error (_("Error on target while setting tracepoints."));
+ }
if (packet_support (PACKET_TracepointSource) == PACKET_ENABLE)
{
if (b->location != NULL)
{
- strcpy (buf, "QTDPsrc:");
+ ret = snprintf (buf.data (), buf.size (), "QTDPsrc:");
+
+ if (ret < 0 || ret >= buf.size ())
+ error ("%s", err_msg);
+
encode_source_string (b->number, loc->address, "at",
event_location_to_string (b->location.get ()),
- buf + strlen (buf), 2048 - strlen (buf));
- putpkt (buf);
+ buf.data () + strlen (buf.data ()),
+ buf.size () - strlen (buf.data ()));
+ putpkt (buf.data ());
remote_get_noisy_reply ();
- if (strcmp (rs->buf, "OK"))
+ if (strcmp (rs->buf.data (), "OK"))
warning (_("Target does not support source download."));
}
if (b->cond_string)
{
- strcpy (buf, "QTDPsrc:");
+ ret = snprintf (buf.data (), buf.size (), "QTDPsrc:");
+
+ if (ret < 0 || ret >= buf.size ())
+ error ("%s", err_msg);
+
encode_source_string (b->number, loc->address,
- "cond", b->cond_string, buf + strlen (buf),
- 2048 - strlen (buf));
- putpkt (buf);
+ "cond", b->cond_string,
+ buf.data () + strlen (buf.data ()),
+ buf.size () - strlen (buf.data ()));
+ putpkt (buf.data ());
remote_get_noisy_reply ();
- if (strcmp (rs->buf, "OK"))
+ if (strcmp (rs->buf.data (), "OK"))
warning (_("Target does not support source download."));
}
remote_download_command_source (b->number, loc->address,
struct remote_state *rs = get_remote_state ();
char *p;
- xsnprintf (rs->buf, get_remote_packet_size (), "QTDV:%x:%s:%x:",
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "QTDV:%x:%s:%x:",
tsv.number, phex ((ULONGEST) tsv.initial_value, 8),
tsv.builtin);
- p = rs->buf + strlen (rs->buf);
- if ((p - rs->buf) + tsv.name.length () * 2 >= get_remote_packet_size ())
+ p = rs->buf.data () + strlen (rs->buf.data ());
+ if ((p - rs->buf.data ()) + tsv.name.length () * 2
+ >= get_remote_packet_size ())
error (_("Trace state variable name too long for tsv definition packet"));
p += 2 * bin2hex ((gdb_byte *) (tsv.name.data ()), p, tsv.name.length ());
*p++ = '\0';
putpkt (rs->buf);
remote_get_noisy_reply ();
- if (*rs->buf == '\0')
+ if (rs->buf[0] == '\0')
error (_("Target does not support this command."));
- if (strcmp (rs->buf, "OK") != 0)
+ if (strcmp (rs->buf.data (), "OK") != 0)
error (_("Error on target while downloading trace state variable."));
}
char addr_buf[40];
sprintf_vma (addr_buf, location->address);
- xsnprintf (rs->buf, get_remote_packet_size (), "QTEnable:%x:%s",
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "QTEnable:%x:%s",
location->owner->number, addr_buf);
putpkt (rs->buf);
remote_get_noisy_reply ();
- if (*rs->buf == '\0')
+ if (rs->buf[0] == '\0')
error (_("Target does not support enabling tracepoints while a trace run is ongoing."));
- if (strcmp (rs->buf, "OK") != 0)
+ if (strcmp (rs->buf.data (), "OK") != 0)
error (_("Error on target while enabling tracepoint."));
}
char addr_buf[40];
sprintf_vma (addr_buf, location->address);
- xsnprintf (rs->buf, get_remote_packet_size (), "QTDisable:%x:%s",
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "QTDisable:%x:%s",
location->owner->number, addr_buf);
putpkt (rs->buf);
remote_get_noisy_reply ();
- if (*rs->buf == '\0')
+ if (rs->buf[0] == '\0')
error (_("Target does not support disabling tracepoints while a trace run is ongoing."));
- if (strcmp (rs->buf, "OK") != 0)
+ if (strcmp (rs->buf.data (), "OK") != 0)
error (_("Error on target while disabling tracepoint."));
}
remote_target::trace_set_readonly_regions ()
{
asection *s;
- bfd *abfd = NULL;
bfd_size_type size;
bfd_vma vma;
int anysecs = 0;
struct remote_state *rs = get_remote_state ();
- strcpy (rs->buf, "QTro");
- offset = strlen (rs->buf);
+ strcpy (rs->buf.data (), "QTro");
+ offset = strlen (rs->buf.data ());
for (s = exec_bfd->sections; s; s = s->next)
{
char tmp1[40], tmp2[40];
continue;
anysecs = 1;
- vma = bfd_get_section_vma (abfd, s);
- size = bfd_get_section_size (s);
+ vma = bfd_section_vma (s);
+ size = bfd_section_size (s);
sprintf_vma (tmp1, vma);
sprintf_vma (tmp2, vma + size);
sec_length = 1 + strlen (tmp1) + 1 + strlen (tmp2);
- if (offset + sec_length + 1 > rs->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 (rs->buf + offset, rs->buf_size - offset, ":%s,%s",
+ xsnprintf (rs->buf.data () + offset, rs->buf.size () - offset, ":%s,%s",
tmp1, tmp2);
offset += sec_length;
}
if (anysecs)
{
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
}
}
putpkt ("QTStart");
remote_get_noisy_reply ();
- if (*rs->buf == '\0')
+ if (rs->buf[0] == '\0')
error (_("Target does not support this command."));
- if (strcmp (rs->buf, "OK") != 0)
- error (_("Bogus reply from target: %s"), rs->buf);
+ if (strcmp (rs->buf.data (), "OK") != 0)
+ error (_("Bogus reply from target: %s"), rs->buf.data ());
}
int
{
/* Initialize it just to avoid a GCC false warning. */
char *p = NULL;
- /* 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;
+ /* FIXME we need to get register block size some other way. */
trace_regblock_size
= rs->get_remote_arch_state (target_gdbarch ())->sizeof_g_packet;
putpkt ("qTStatus");
- TRY
+ try
{
p = remote_get_noisy_reply ();
}
- CATCH (ex, RETURN_MASK_ERROR)
+ catch (const gdb_exception_error &ex)
{
if (ex.error != TARGET_CLOSE_ERROR)
{
exception_fprintf (gdb_stderr, ex, "qTStatus: ");
return -1;
}
- throw_exception (ex);
+ throw;
}
- END_CATCH
result = packet_ok (p, &remote_protocol_packets[PACKET_qTStatus]);
ts->filename = NULL;
if (*p++ != 'T')
- error (_("Bogus trace status reply from target: %s"), rs->buf);
+ error (_("Bogus trace status reply from target: %s"), rs->buf.data ());
/* Function 'parse_trace_status' sets default value of each field of
'ts' at first, so we don't have to do it here. */
any status. */
if (tp->number_on_target == 0)
continue;
- xsnprintf (rs->buf, size, "qTP:%x:%s", tp->number_on_target,
+ xsnprintf (rs->buf.data (), size, "qTP:%x:%s", tp->number_on_target,
phex_nz (loc->address, 0));
putpkt (rs->buf);
reply = remote_get_noisy_reply ();
{
utp->hit_count = 0;
utp->traceframe_usage = 0;
- xsnprintf (rs->buf, size, "qTP:%x:%s", utp->number,
+ xsnprintf (rs->buf.data (), size, "qTP:%x:%s", utp->number,
phex_nz (utp->addr, 0));
putpkt (rs->buf);
reply = remote_get_noisy_reply ();
putpkt ("QTStop");
remote_get_noisy_reply ();
- if (*rs->buf == '\0')
+ if (rs->buf[0] == '\0')
error (_("Target does not support this command."));
- if (strcmp (rs->buf, "OK") != 0)
- error (_("Bogus reply from target: %s"), rs->buf);
+ if (strcmp (rs->buf.data (), "OK") != 0)
+ error (_("Bogus reply from target: %s"), rs->buf.data ());
}
int
int *tpp)
{
struct remote_state *rs = get_remote_state ();
- char *endbuf = rs->buf + get_remote_packet_size ();
+ char *endbuf = rs->buf.data () + get_remote_packet_size ();
char *p, *reply;
int target_frameno = -1, target_tracept = -1;
if (type != tfind_number)
set_remote_traceframe ();
- p = rs->buf;
+ p = rs->buf.data ();
strcpy (p, "QTFrame:");
p = strchr (p, '\0');
switch (type)
set_remote_traceframe ();
- xsnprintf (rs->buf, get_remote_packet_size (), "qTV:%x", tsvnum);
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "qTV:%x", tsvnum);
putpkt (rs->buf);
reply = remote_get_noisy_reply ();
if (reply && *reply)
struct remote_state *rs = get_remote_state ();
char *p, *reply;
- p = rs->buf;
+ p = rs->buf.data ();
strcpy (p, "QTSave:");
p += strlen (p);
- if ((p - rs->buf) + strlen (filename) * 2 >= get_remote_packet_size ())
+ if ((p - rs->buf.data ()) + strlen (filename) * 2
+ >= get_remote_packet_size ())
error (_("Remote file name too long for trace save packet"));
p += 2 * bin2hex ((gdb_byte *) filename, p, strlen (filename));
*p++ = '\0';
char *p;
int rslt;
- p = rs->buf;
+ p = rs->buf.data ();
strcpy (p, "qTBuffer:");
p += strlen (p);
p += hexnumstr (p, offset);
{
char *reply;
- xsnprintf (rs->buf, get_remote_packet_size (), "QTDisconnected:%x", val);
+ xsnprintf (rs->buf.data (), get_remote_packet_size (),
+ "QTDisconnected:%x", val);
putpkt (rs->buf);
reply = remote_get_noisy_reply ();
if (*reply == '\0')
struct remote_state *rs = get_remote_state ();
char *reply;
- xsnprintf (rs->buf, get_remote_packet_size (), "QTBuffer:circular:%x", val);
+ xsnprintf (rs->buf.data (), get_remote_packet_size (),
+ "QTBuffer:circular:%x", val);
putpkt (rs->buf);
reply = remote_get_noisy_reply ();
if (*reply == '\0')
remote_target::traceframe_info ()
{
gdb::optional<gdb::char_vector> text
- = target_read_stralloc (target_stack, TARGET_OBJECT_TRACEFRAME_INFO,
+ = target_read_stralloc (current_top_target (), TARGET_OBJECT_TRACEFRAME_INFO,
NULL);
if (text)
return parse_traceframe_info (text->data ());
/* Make sure the remote is pointing at the right process. */
set_general_process ();
- xsnprintf (rs->buf, get_remote_packet_size (), "qTMinFTPILen");
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "qTMinFTPILen");
putpkt (rs->buf);
reply = remote_get_noisy_reply ();
if (*reply == '\0')
if (packet_support (PACKET_QTBuffer_size) != PACKET_DISABLE)
{
struct remote_state *rs = get_remote_state ();
- char *buf = rs->buf;
- char *endbuf = rs->buf + get_remote_packet_size ();
+ char *buf = rs->buf.data ();
+ char *endbuf = buf + get_remote_packet_size ();
enum packet_result result;
gdb_assert (val >= 0 || val == -1);
&remote_protocol_packets[PACKET_QTBuffer_size]);
if (result != PACKET_OK)
- warning (_("Bogus reply from target: %s"), rs->buf);
+ warning (_("Bogus reply from target: %s"), rs->buf.data ());
}
}
{
struct remote_state *rs = get_remote_state ();
char *reply;
- char *buf = rs->buf;
- char *endbuf = rs->buf + get_remote_packet_size ();
+ char *buf = rs->buf.data ();
+ char *endbuf = buf + get_remote_packet_size ();
int nbytes;
buf += xsnprintf (buf, endbuf - buf, "QTNotes:");
struct remote_state *rs = get_remote_state ();
/* If the stub supports QAgent. */
- xsnprintf (rs->buf, get_remote_packet_size (), "QAgent:%d", use);
+ xsnprintf (rs->buf.data (), get_remote_packet_size (), "QAgent:%d", use);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
- if (strcmp (rs->buf, "OK") == 0)
+ if (strcmp (rs->buf.data (), "OK") == 0)
{
::use_agent = use;
return true;
char *buf, *pos, *endbuf;
rs = get_remote_state ();
- buf = rs->buf;
+ buf = rs->buf.data ();
endbuf = buf + get_remote_packet_size ();
packet = &remote_protocol_packets[PACKET_Qbtrace_conf_bts_size];
conf->bts.size);
putpkt (buf);
- getpkt (&buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (packet_ok (buf, packet) == PACKET_ERROR)
{
conf->pt.size);
putpkt (buf);
- getpkt (&buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (packet_ok (buf, packet) == PACKET_ERROR)
{
btrace_read_config (struct btrace_config *conf)
{
gdb::optional<gdb::char_vector> xml
- = target_read_stralloc (target_stack, TARGET_OBJECT_BTRACE_CONF, "");
+ = target_read_stralloc (current_top_target (), TARGET_OBJECT_BTRACE_CONF, "");
if (xml)
parse_xml_btrace_conf (conf, xml->data ());
}
remote_target::remote_btrace_maybe_reopen ()
{
struct remote_state *rs = get_remote_state ();
- struct thread_info *tp;
int btrace_target_pushed = 0;
+#if !defined (HAVE_LIBIPT)
int warned = 0;
+#endif
+
+ /* Don't bother walking the entirety of the remote thread list when
+ we know the feature isn't supported by the remote. */
+ if (packet_support (PACKET_qXfer_btrace_conf) != PACKET_ENABLE)
+ return;
scoped_restore_current_thread restore_thread;
- ALL_NON_EXITED_THREADS (tp)
+ for (thread_info *tp : all_non_exited_threads ())
{
set_general_thread (tp->ptid);
struct btrace_target_info *tinfo = NULL;
struct packet_config *packet = NULL;
struct remote_state *rs = get_remote_state ();
- char *buf = rs->buf;
- char *endbuf = rs->buf + get_remote_packet_size ();
+ char *buf = rs->buf.data ();
+ char *endbuf = buf + get_remote_packet_size ();
switch (conf->format)
{
buf += xsnprintf (buf, endbuf - buf, "%s", packet->name);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (packet_ok (rs->buf, packet) == PACKET_ERROR)
{
if (rs->buf[0] == 'E' && rs->buf[1] == '.')
error (_("Could not enable branch tracing for %s: %s"),
- target_pid_to_str (ptid), rs->buf + 2);
+ target_pid_to_str (ptid).c_str (), &rs->buf[2]);
else
error (_("Could not enable branch tracing for %s."),
- target_pid_to_str (ptid));
+ target_pid_to_str (ptid).c_str ());
}
tinfo = XCNEW (struct btrace_target_info);
/* If we fail to read the configuration, we lose some information, but the
tracing itself is not impacted. */
- TRY
+ try
{
btrace_read_config (&tinfo->conf);
}
- CATCH (err, RETURN_MASK_ERROR)
+ catch (const gdb_exception_error &err)
{
if (err.message != NULL)
- warning ("%s", err.message);
+ warning ("%s", err.what ());
}
- END_CATCH
return tinfo;
}
{
struct packet_config *packet = &remote_protocol_packets[PACKET_Qbtrace_off];
struct remote_state *rs = get_remote_state ();
- char *buf = rs->buf;
- char *endbuf = rs->buf + get_remote_packet_size ();
+ char *buf = rs->buf.data ();
+ char *endbuf = buf + get_remote_packet_size ();
if (packet_config_support (packet) != PACKET_ENABLE)
error (_("Target does not support branch tracing."));
buf += xsnprintf (buf, endbuf - buf, "%s", packet->name);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
if (packet_ok (rs->buf, packet) == PACKET_ERROR)
{
if (rs->buf[0] == 'E' && rs->buf[1] == '.')
error (_("Could not disable branch tracing for %s: %s"),
- target_pid_to_str (tinfo->ptid), rs->buf + 2);
+ target_pid_to_str (tinfo->ptid).c_str (), &rs->buf[2]);
else
error (_("Could not disable branch tracing for %s."),
- target_pid_to_str (tinfo->ptid));
+ target_pid_to_str (tinfo->ptid).c_str ());
}
xfree (tinfo);
}
gdb::optional<gdb::char_vector> xml
- = target_read_stralloc (target_stack, TARGET_OBJECT_BTRACE, annex);
+ = target_read_stralloc (current_top_target (), TARGET_OBJECT_BTRACE, annex);
if (!xml)
return BTRACE_ERR_UNKNOWN;
xsnprintf (annex, annex_size, "%x", pid);
}
- filename = target_read_stralloc (target_stack,
+ filename = target_read_stralloc (current_top_target (),
TARGET_OBJECT_EXEC_FILE, annex);
return filename ? filename->data () : nullptr;
int handle_len,
inferior *inf)
{
- struct thread_info *tp;
-
- ALL_NON_EXITED_THREADS (tp)
+ for (thread_info *tp : all_non_exited_threads ())
{
remote_thread_info *priv = get_remote_thread_info (tp);
return NULL;
}
+gdb::byte_vector
+remote_target::thread_info_to_thread_handle (struct thread_info *tp)
+{
+ remote_thread_info *priv = get_remote_thread_info (tp);
+ return priv->thread_handle;
+}
+
bool
remote_target::can_async_p ()
{
/* If there are pending events in the stop reply queue tell the
event loop to process them. */
- if (!QUEUE_is_empty (stop_reply_p, rs->stop_reply_queue))
+ if (!rs->stop_reply_queue.empty ())
mark_async_event_handler (rs->remote_async_inferior_event_token);
/* For simplicity, below we clear the pending events token
without remembering whether it is marked, so here we always
if (packet_support (PACKET_QThreadEvents) == PACKET_DISABLE)
return;
- xsnprintf (rs->buf, size, "QThreadEvents:%x", enable ? 1 : 0);
+ xsnprintf (rs->buf.data (), size, "QThreadEvents:%x", enable ? 1 : 0);
putpkt (rs->buf);
- getpkt (&rs->buf, &rs->buf_size, 0);
+ getpkt (&rs->buf, 0);
switch (packet_ok (rs->buf,
&remote_protocol_packets[PACKET_QThreadEvents]))
{
case PACKET_OK:
- if (strcmp (rs->buf, "OK") != 0)
- error (_("Remote refused setting thread events: %s"), rs->buf);
+ if (strcmp (rs->buf.data (), "OK") != 0)
+ error (_("Remote refused setting thread events: %s"), rs->buf.data ());
break;
case PACKET_ERROR:
- warning (_("Remote failure reply: %s"), rs->buf);
+ warning (_("Remote failure reply: %s"), rs->buf.data ());
break;
case PACKET_UNKNOWN:
break;
/* Ask for a first packet of tracepoint definition. */
putpkt ("qTfP");
- getpkt (&rs->buf, &rs->buf_size, 0);
- p = rs->buf;
+ getpkt (&rs->buf, 0);
+ p = rs->buf.data ();
while (*p && *p != 'l')
{
parse_tracepoint_definition (p, utpp);
/* Ask for another packet of tracepoint definition. */
putpkt ("qTsP");
- getpkt (&rs->buf, &rs->buf_size, 0);
- p = rs->buf;
+ getpkt (&rs->buf, 0);
+ p = rs->buf.data ();
}
return 0;
}
/* Ask for a first packet of variable definition. */
putpkt ("qTfV");
- getpkt (&rs->buf, &rs->buf_size, 0);
- p = rs->buf;
+ getpkt (&rs->buf, 0);
+ p = rs->buf.data ();
while (*p && *p != 'l')
{
parse_tsv_definition (p, utsvp);
/* Ask for another packet of variable definition. */
putpkt ("qTsV");
- getpkt (&rs->buf, &rs->buf_size, 0);
- p = rs->buf;
+ getpkt (&rs->buf, 0);
+ p = rs->buf.data ();
}
return 0;
}
remote_g_packet_data_handle =
gdbarch_data_register_pre_init (remote_g_packet_data_init);
- remote_pspace_data
- = register_program_space_data_with_cleanup (NULL,
- remote_pspace_data_cleanup);
-
add_target (remote_target_info, remote_target::open);
add_target (extended_remote_target_info, extended_remote_target::open);
/* set/show remote ... */
add_prefix_cmd ("remote", class_maintenance, set_remote_cmd, _("\
-Remote protocol specific variables\n\
+Remote protocol specific variables.\n\
Configure various remote-protocol specific variables such as\n\
-the packets being used"),
+the packets being used."),
&remote_set_cmdlist, "set remote ",
0 /* allow-unknown */, &setlist);
add_prefix_cmd ("remote", class_maintenance, show_remote_cmd, _("\
-Remote protocol specific variables\n\
+Remote protocol specific variables.\n\
Configure various remote-protocol specific variables such as\n\
-the packets being used"),
+the packets being used."),
&remote_show_cmdlist, "show remote ",
0 /* allow-unknown */, &showlist);
add_setshow_boolean_cmd ("interrupt-on-connect", class_support,
&interrupt_on_connect, _("\
-Set whether interrupt-sequence is sent to remote target when gdb connects to."), _(" \
-Show whether interrupt-sequence is sent to remote target when gdb connects to."), _(" \
+Set whether interrupt-sequence is sent to remote target when gdb connects to."), _("\
+Show whether interrupt-sequence is sent to remote target when gdb connects to."), _("\
If set, interrupt sequence is sent to remote target."),
NULL, NULL,
&remote_set_cmdlist, &remote_show_cmdlist);
_("Show the maximum number of bytes per memory-read packet."),
&remote_show_cmdlist);
- add_setshow_zinteger_cmd ("hardware-watchpoint-limit", no_class,
+ add_setshow_zuinteger_unlimited_cmd ("hardware-watchpoint-limit", no_class,
&remote_hw_watchpoint_limit, _("\
Set the maximum number of target hardware watchpoints."), _("\
Show the maximum number of target hardware watchpoints."), _("\
-Specify a negative limit for unlimited."),
- NULL, NULL, /* FIXME: i18n: The maximum
- number of target hardware
- watchpoints is %s. */
- &remote_set_cmdlist, &remote_show_cmdlist);
- add_setshow_zinteger_cmd ("hardware-watchpoint-length-limit", no_class,
+Specify \"unlimited\" for unlimited hardware watchpoints."),
+ NULL, show_hardware_watchpoint_limit,
+ &remote_set_cmdlist,
+ &remote_show_cmdlist);
+ add_setshow_zuinteger_unlimited_cmd ("hardware-watchpoint-length-limit",
+ no_class,
&remote_hw_watchpoint_length_limit, _("\
Set the maximum length (in bytes) of a target hardware watchpoint."), _("\
Show the maximum length (in bytes) of a target hardware watchpoint."), _("\
-Specify a negative limit for unlimited."),
- NULL, NULL, /* FIXME: i18n: The maximum
- length (in bytes) of a target
- hardware watchpoint is %s. */
+Specify \"unlimited\" to allow watchpoints of unlimited size."),
+ NULL, show_hardware_watchpoint_length_limit,
&remote_set_cmdlist, &remote_show_cmdlist);
- add_setshow_zinteger_cmd ("hardware-breakpoint-limit", no_class,
+ add_setshow_zuinteger_unlimited_cmd ("hardware-breakpoint-limit", no_class,
&remote_hw_breakpoint_limit, _("\
Set the maximum number of target hardware breakpoints."), _("\
Show the maximum number of target hardware breakpoints."), _("\
-Specify a negative limit for unlimited."),
- NULL, NULL, /* FIXME: i18n: The maximum
- number of target hardware
- breakpoints is %s. */
+Specify \"unlimited\" for unlimited hardware breakpoints."),
+ NULL, show_hardware_breakpoint_limit,
&remote_set_cmdlist, &remote_show_cmdlist);
add_setshow_zuinteger_cmd ("remoteaddresssize", class_obscure,
add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_memory_map],
"qXfer:memory-map:read", "memory-map", 0);
- add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_spu_read],
- "qXfer:spu:read", "read-spu-object", 0);
-
- add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_spu_write],
- "qXfer:spu:write", "write-spu-object", 0);
-
add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_osdata],
"qXfer:osdata:read", "osdata", 0);
documentation). */
add_setshow_auto_boolean_cmd ("Z-packet", class_obscure,
&remote_Z_packet_detect, _("\
-Set use of remote protocol `Z' packets"), _("\
-Show use of remote protocol `Z' packets "), _("\
+Set use of remote protocol `Z' packets."), _("\
+Show use of remote protocol `Z' packets."), _("\
When set, GDB will attempt to use the remote breakpoint and watchpoint\n\
packets."),
set_remote_protocol_Z_packet_cmd,
&remote_set_cmdlist, &remote_show_cmdlist);
add_prefix_cmd ("remote", class_files, remote_command, _("\
-Manipulate files on the remote system\n\
+Manipulate files on the remote system.\n\
Transfer files to and from the remote target system."),
&remote_cmdlist, "remote ",
0 /* allow-unknown */, &cmdlist);
add_setshow_string_noescape_cmd ("exec-file", class_files,
&remote_exec_file_var, _("\
-Set the remote pathname for \"run\""), _("\
-Show the remote pathname for \"run\""), NULL,
+Set the remote pathname for \"run\"."), _("\
+Show the remote pathname for \"run\"."), NULL,
set_remote_exec_file,
show_remote_exec_file,
&remote_set_cmdlist,
&setlist,
&showlist);
+ add_setshow_zinteger_cmd ("watchdog", class_maintenance, &watchdog, _("\
+Set watchdog timer."), _("\
+Show watchdog timer."), _("\
+When non-zero, this timeout is used instead of waiting forever for a target\n\
+to finish a low-level step or continue operation. If the specified amount\n\
+of time passes without a response from the target, an error occurs."),
+ NULL,
+ show_watchdog,
+ &setlist, &showlist);
+
+ add_setshow_zuinteger_unlimited_cmd ("remote-packet-max-chars", no_class,
+ &remote_packet_max_chars, _("\
+Set the maximum number of characters to display for each remote packet."), _("\
+Show the maximum number of characters to display for each remote packet."), _("\
+Specify \"unlimited\" to display all the characters."),
+ NULL, show_remote_packet_max_chars,
+ &setdebuglist, &showdebuglist);
+
/* Eventually initialize fileio. See fileio.c */
initialize_remote_fileio (remote_set_cmdlist, remote_show_cmdlist);
-
- /* Take advantage of the fact that the TID field is not used, to tag
- special ptids with it set to != 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);
}