Constify unpack_varlen_hex & fix fallout
I ran into non-const unpack_varlen_hex while working on something else, and decided to just fix it first. Ends up constifying a good deal of remote packet parsing. gdb/ChangeLog: 2017-09-29 Pedro Alves <palves@redhat.com> * common/rsp-low.c (unpack_varlen_hex): Constify. * common/rsp-low.h (unpack_varlen_hex): Constify. * linux-nat.c (linux_child_static_tracepoint_markers_by_strid): Constify. * remote.c (remote_set_permissions, read_ptid) (remote_current_thread, remote_get_threads_with_qthreadinfo) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (stop_reply_extract_thread, remote_parse_stop_reply): Constify. * tracepoint.c (parse_trace_status, parse_tracepoint_status) (parse_tracepoint_definition, parse_tsv_definition) (parse_static_tracepoint_marker_definition): Constify. * tracepoint.h (parse_static_tracepoint_marker_definition) (parse_trace_status, parse_tracepoint_status) (parse_tracepoint_definition, parse_tsv_definition): Constify. gdb/gdbserver/ChangeLog: 2017-09-29 Pedro Alves <palves@redhat.com> * ax.c (gdb_parse_agent_expr): Constify. * ax.h (gdb_parse_agent_expr): Constify. * mem-break.c (add_breakpoint_condition, add_breakpoint_commands): Constify. * mem-break.h (add_breakpoint_condition, add_breakpoint_commands): Constify. * remote-utils.c (hex_or_minus_one, read_ptid): Constify. * remote-utils.h (read_ptid): Constify. * server.c (handle_qxfer_exec_file, handle_query, handle_v_cont) (process_point_options, process_serial_event): Constify. * tracepoint.c (add_tracepoint_action, cmd_qtdp, cmd_qtdpsrc) (cmd_qtdv, cmd_qtenable_disable, cmd_qtro, cmd_qtframe, cmd_qtp) (cmd_qtbuffer): Constify.
This commit is contained in:
parent
b6bb34680b
commit
256642e857
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@ -1,3 +1,21 @@
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2017-09-29 Pedro Alves <palves@redhat.com>
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* common/rsp-low.c (unpack_varlen_hex): Constify.
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* common/rsp-low.h (unpack_varlen_hex): Constify.
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* linux-nat.c (linux_child_static_tracepoint_markers_by_strid):
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Constify.
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* remote.c (remote_set_permissions, read_ptid)
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(remote_current_thread, remote_get_threads_with_qthreadinfo)
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(remote_static_tracepoint_marker_at)
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(remote_static_tracepoint_markers_by_strid)
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(stop_reply_extract_thread, remote_parse_stop_reply): Constify.
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* tracepoint.c (parse_trace_status, parse_tracepoint_status)
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(parse_tracepoint_definition, parse_tsv_definition)
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(parse_static_tracepoint_marker_definition): Constify.
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* tracepoint.h (parse_static_tracepoint_marker_definition)
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(parse_trace_status, parse_tracepoint_status)
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(parse_tracepoint_definition, parse_tsv_definition): Constify.
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2017-09-29 Pedro Alves <palves@redhat.com>
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* remote.c (target_buf, target_buf_size): Delete.
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@ -92,8 +92,8 @@ pack_hex_byte (char *pkt, int byte)
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/* See rsp-low.h. */
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char *
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unpack_varlen_hex (char *buff, /* packet to parse */
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const char *
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unpack_varlen_hex (const char *buff, /* packet to parse */
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ULONGEST *result)
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{
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int nibble;
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@ -41,7 +41,7 @@ extern char *pack_hex_byte (char *pkt, int byte);
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in RESULT. Reads until a non-hex digit is seen. Returns a pointer
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to the terminating character. */
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extern char *unpack_varlen_hex (char *buff, ULONGEST *result);
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extern const char *unpack_varlen_hex (const char *buff, ULONGEST *result);
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/* HEX is a string of characters representing hexadecimal digits.
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Convert pairs of hex digits to bytes and store sequentially into
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@ -1,3 +1,18 @@
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2017-09-29 Pedro Alves <palves@redhat.com>
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* ax.c (gdb_parse_agent_expr): Constify.
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* ax.h (gdb_parse_agent_expr): Constify.
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* mem-break.c (add_breakpoint_condition, add_breakpoint_commands):
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Constify.
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* mem-break.h (add_breakpoint_condition, add_breakpoint_commands): Constify.
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* remote-utils.c (hex_or_minus_one, read_ptid): Constify.
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* remote-utils.h (read_ptid): Constify.
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* server.c (handle_qxfer_exec_file, handle_query, handle_v_cont)
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(process_point_options, process_serial_event): Constify.
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* tracepoint.c (add_tracepoint_action, cmd_qtdp, cmd_qtdpsrc)
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(cmd_qtdv, cmd_qtenable_disable, cmd_qtro, cmd_qtframe, cmd_qtp)
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(cmd_qtbuffer): Constify.
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2017-09-29 Pedro Alves <palves@redhat.com>
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* proc-service.c (ps_pdread): Return PS_ERR if reading memory
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@ -95,9 +95,9 @@ gdb_agent_op_name (int op)
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of bytes in expression, a comma, and then the bytes. */
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struct agent_expr *
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gdb_parse_agent_expr (char **actparm)
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gdb_parse_agent_expr (const char **actparm)
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{
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char *act = *actparm;
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const char *act = *actparm;
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ULONGEST xlen;
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struct agent_expr *aexpr;
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@ -55,7 +55,7 @@ struct agent_expr
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/* The packet form of an agent expression consists of an 'X', number
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of bytes in expression, a comma, and then the bytes. */
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struct agent_expr *gdb_parse_agent_expr (char **actparm);
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struct agent_expr *gdb_parse_agent_expr (const char **actparm);
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/* Release an agent expression. */
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void gdb_free_agent_expr (struct agent_expr *aexpr);
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@ -1269,9 +1269,9 @@ add_condition_to_breakpoint (struct gdb_breakpoint *bp,
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/* Add a target-side condition CONDITION to a breakpoint. */
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int
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add_breakpoint_condition (struct gdb_breakpoint *bp, char **condition)
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add_breakpoint_condition (struct gdb_breakpoint *bp, const char **condition)
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{
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char *actparm = *condition;
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const char *actparm = *condition;
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struct agent_expr *cond;
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if (condition == NULL)
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@ -1367,10 +1367,10 @@ add_commands_to_breakpoint (struct gdb_breakpoint *bp,
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/* Add a target-side command COMMAND to the breakpoint at ADDR. */
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int
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add_breakpoint_commands (struct gdb_breakpoint *bp, char **command,
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add_breakpoint_commands (struct gdb_breakpoint *bp, const char **command,
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int persist)
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{
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char *actparm = *command;
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const char *actparm = *command;
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struct agent_expr *cmd;
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if (command == NULL)
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@ -114,14 +114,15 @@ void clear_breakpoint_conditions_and_commands (struct gdb_breakpoint *bp);
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Returns false on failure. On success, advances CONDITION pointer
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past the condition and returns true. */
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int add_breakpoint_condition (struct gdb_breakpoint *bp, char **condition);
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int add_breakpoint_condition (struct gdb_breakpoint *bp,
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const char **condition);
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/* Set target-side commands COMMANDS to the breakpoint at ADDR.
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Returns false on failure. On success, advances COMMANDS past the
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commands and returns true. If PERSIST, the commands should run
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even while GDB is disconnected. */
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int add_breakpoint_commands (struct gdb_breakpoint *bp, char **commands,
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int add_breakpoint_commands (struct gdb_breakpoint *bp, const char **commands,
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int persist);
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int any_persistent_commands (void);
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@ -533,7 +533,7 @@ write_ptid (char *buf, ptid_t ptid)
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}
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static ULONGEST
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hex_or_minus_one (char *buf, char **obuf)
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hex_or_minus_one (const char *buf, const char **obuf)
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{
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ULONGEST ret;
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/* Extract a PTID from BUF. If non-null, OBUF is set to the to one
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passed the last parsed char. Returns null_ptid on error. */
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ptid_t
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read_ptid (char *buf, char **obuf)
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read_ptid (const char *buf, const char **obuf)
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{
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char *p = buf;
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char *pp;
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const char *p = buf;
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const char *pp;
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ULONGEST pid = 0, tid = 0;
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if (*p == 'p')
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@ -28,7 +28,7 @@ int gdb_connected (void);
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#define STDIO_CONNECTION_NAME "stdio"
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int remote_connection_is_stdio (void);
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ptid_t read_ptid (char *buf, char **obuf);
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ptid_t read_ptid (const char *buf, const char **obuf);
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char *write_ptid (char *buf, ptid_t ptid);
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int putpkt (char *buf);
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@ -1427,7 +1427,7 @@ handle_qxfer_auxv (const char *annex,
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/* Handle qXfer:exec-file:read. */
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static int
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handle_qxfer_exec_file (const char *const_annex,
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handle_qxfer_exec_file (const char *annex,
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gdb_byte *readbuf, const gdb_byte *writebuf,
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ULONGEST offset, LONGEST len)
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{
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if (the_target->pid_to_exec_file == NULL || writebuf != NULL)
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return -2;
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if (const_annex[0] == '\0')
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if (annex[0] == '\0')
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{
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if (current_thread == NULL)
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return -1;
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}
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else
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{
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char *annex = (char *) alloca (strlen (const_annex) + 1);
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strcpy (annex, const_annex);
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annex = unpack_varlen_hex (annex, &pid);
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if (annex[0] != '\0')
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return -1;
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}
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if (the_target->get_tib_address != NULL
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&& startswith (own_buf, "qGetTIBAddr:"))
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{
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char *annex;
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const char *annex;
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int n;
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CORE_ADDR tlb;
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ptid_t ptid = read_ptid (own_buf + 12, &annex);
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if (startswith (own_buf, "qCRC:"))
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{
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/* CRC check (compare-section). */
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char *comma;
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const char *comma;
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ULONGEST base;
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int len;
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unsigned long long crc;
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static void
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handle_v_cont (char *own_buf)
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{
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char *p, *q;
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const char *p;
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int n = 0, i = 0;
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struct thread_resume *resume_info;
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struct thread_resume default_action { null_ptid };
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if (p[0] == 'S' || p[0] == 'C')
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{
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int sig;
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sig = strtol (p + 1, &q, 16);
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char *q;
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int sig = strtol (p + 1, &q, 16);
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if (p == q)
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goto err;
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p = q;
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}
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else if (p[0] == ':')
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{
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const char *q;
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ptid_t ptid = read_ptid (p + 1, &q);
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if (p == q)
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after the last processed option. */
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static void
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process_point_options (struct gdb_breakpoint *bp, char **packet)
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process_point_options (struct gdb_breakpoint *bp, const char **packet)
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{
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char *dataptr = *packet;
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const char *dataptr = *packet;
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int persist;
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/* Check if data has the correct format. */
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char type = own_buf[1];
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int res;
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const int insert = ch == 'Z';
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char *p = &own_buf[3];
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const char *p = &own_buf[3];
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p = unpack_varlen_hex (p, &addr);
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kind = strtol (p + 1, &dataptr, 16);
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is telling us to drop that list and use this one
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instead. */
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clear_breakpoint_conditions_and_commands (bp);
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process_point_options (bp, &dataptr);
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const char *options = dataptr;
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process_point_options (bp, &options);
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}
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}
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else
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@ -1910,9 +1910,9 @@ find_next_tracepoint_by_number (struct tracepoint *prev_tp, int num)
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/* Append another action to perform when the tracepoint triggers. */
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static void
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add_tracepoint_action (struct tracepoint *tpoint, char *packet)
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add_tracepoint_action (struct tracepoint *tpoint, const char *packet)
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{
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char *act;
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const char *act;
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if (*packet == 'S')
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{
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@ -1924,7 +1924,7 @@ add_tracepoint_action (struct tracepoint *tpoint, char *packet)
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while (*act)
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{
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char *act_start = act;
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const char *act_start = act;
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struct tracepoint_action *action = NULL;
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switch (*act)
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@ -2485,8 +2485,7 @@ cmd_qtdp (char *own_buf)
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ULONGEST addr;
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ULONGEST count;
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struct tracepoint *tpoint;
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char *actparm;
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char *packet = own_buf;
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const char *packet = own_buf;
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packet += strlen ("QTDP:");
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@ -2546,9 +2545,7 @@ cmd_qtdp (char *own_buf)
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}
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else if (*packet == 'X')
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{
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actparm = (char *) packet;
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tpoint->cond = gdb_parse_agent_expr (&actparm);
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packet = actparm;
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tpoint->cond = gdb_parse_agent_expr (&packet);
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}
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else if (*packet == '-')
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break;
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@ -2657,8 +2654,9 @@ cmd_qtdpsrc (char *own_buf)
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{
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ULONGEST num, addr, start, slen;
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struct tracepoint *tpoint;
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char *packet = own_buf;
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char *saved, *srctype, *src;
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const char *packet = own_buf;
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const char *saved;
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char *srctype, *src;
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size_t nbytes;
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struct source_string *last, *newlast;
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@ -2720,7 +2718,7 @@ cmd_qtdv (char *own_buf)
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char *varname;
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size_t nbytes;
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struct trace_state_variable *tsv;
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char *packet = own_buf;
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const char *packet = own_buf;
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packet += strlen ("QTDV:");
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@ -2748,7 +2746,7 @@ cmd_qtdv (char *own_buf)
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static void
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cmd_qtenable_disable (char *own_buf, int enable)
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{
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char *packet = own_buf;
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const char *packet = own_buf;
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ULONGEST num, addr;
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struct tracepoint *tp;
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@ -2870,7 +2868,7 @@ cmd_qtro (char *own_buf)
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{
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ULONGEST start, end;
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struct readonly_region *roreg;
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char *packet = own_buf;
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const char *packet = own_buf;
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trace_debug ("Want to mark readonly regions");
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@ -3557,7 +3555,7 @@ cmd_qtframe (char *own_buf)
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ULONGEST frame, pc, lo, hi, num;
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int tfnum, tpnum;
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struct traceframe *tframe;
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char *packet = own_buf;
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const char *packet = own_buf;
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packet += strlen ("QTFrame:");
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@ -3712,7 +3710,7 @@ cmd_qtp (char *own_buf)
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{
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ULONGEST num, addr;
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struct tracepoint *tpoint;
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char *packet = own_buf;
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const char *packet = own_buf;
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packet += strlen ("qTP:");
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@ -4005,7 +4003,7 @@ cmd_qtbuffer (char *own_buf)
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{
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ULONGEST offset, num, tot;
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unsigned char *tbp;
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char *packet = own_buf;
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const char *packet = own_buf;
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packet += strlen ("qTBuffer:");
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@ -4291,7 +4291,7 @@ linux_child_static_tracepoint_markers_by_strid (struct target_ops *self,
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int pid = ptid_get_pid (inferior_ptid);
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VEC(static_tracepoint_marker_p) *markers = NULL;
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struct static_tracepoint_marker *marker = NULL;
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char *p = s;
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const char *p = s;
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ptid_t ptid = ptid_build (pid, 0, 0);
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/* Pause all */
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37
gdb/remote.c
37
gdb/remote.c
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@ -185,7 +185,7 @@ static void show_remote_protocol_packet_cmd (struct ui_file *file,
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const char *value);
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static char *write_ptid (char *buf, const char *endbuf, ptid_t ptid);
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static ptid_t read_ptid (char *buf, char **obuf);
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static ptid_t read_ptid (const char *buf, const char **obuf);
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static void remote_set_permissions (struct target_ops *self);
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||||
|
@ -592,7 +592,7 @@ remote_get_noisy_reply ()
|
|||
{
|
||||
ULONGEST ul;
|
||||
CORE_ADDR from, to, org_to;
|
||||
char *p, *pp;
|
||||
const char *p, *pp;
|
||||
int adjusted_size = 0;
|
||||
int relocated = 0;
|
||||
|
||||
|
@ -2445,14 +2445,15 @@ write_ptid (char *buf, const char *endbuf, ptid_t ptid)
|
|||
return buf;
|
||||
}
|
||||
|
||||
/* Extract a PTID from BUF. If non-null, OBUF is set to the to one
|
||||
passed the last parsed char. Returns null_ptid on error. */
|
||||
/* Extract a PTID from BUF. If non-null, OBUF is set to one past the
|
||||
last parsed char. Returns null_ptid if no thread id is found, and
|
||||
throws an error if the thread id has an invalid format. */
|
||||
|
||||
static ptid_t
|
||||
read_ptid (char *buf, char **obuf)
|
||||
read_ptid (const char *buf, const char **obuf)
|
||||
{
|
||||
char *p = buf;
|
||||
char *pp;
|
||||
const char *p = buf;
|
||||
const char *pp;
|
||||
ULONGEST pid = 0, tid = 0;
|
||||
|
||||
if (*p == 'p')
|
||||
|
@ -3088,7 +3089,7 @@ remote_current_thread (ptid_t oldpid)
|
|||
getpkt (&rs->buf, &rs->buf_size, 0);
|
||||
if (rs->buf[0] == 'Q' && rs->buf[1] == 'C')
|
||||
{
|
||||
char *obuf;
|
||||
const char *obuf;
|
||||
ptid_t result;
|
||||
|
||||
result = read_ptid (&rs->buf[2], &obuf);
|
||||
|
@ -3232,7 +3233,7 @@ remote_get_threads_with_qthreadinfo (struct target_ops *ops,
|
|||
|
||||
if (rs->use_threadinfo_query)
|
||||
{
|
||||
char *bufp;
|
||||
const char *bufp;
|
||||
|
||||
putpkt ("qfThreadInfo");
|
||||
getpkt (&rs->buf, &rs->buf_size, 0);
|
||||
|
@ -3482,7 +3483,7 @@ remote_static_tracepoint_marker_at (struct target_ops *self, CORE_ADDR addr,
|
|||
|
||||
if (*p++ == 'm')
|
||||
{
|
||||
parse_static_tracepoint_marker_definition (p, &p, marker);
|
||||
parse_static_tracepoint_marker_definition (p, NULL, marker);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
@ -3497,7 +3498,7 @@ remote_static_tracepoint_markers_by_strid (struct target_ops *self,
|
|||
VEC(static_tracepoint_marker_p) *markers = NULL;
|
||||
struct static_tracepoint_marker *marker = NULL;
|
||||
struct cleanup *old_chain;
|
||||
char *p;
|
||||
const char *p;
|
||||
|
||||
/* Ask for a first packet of static tracepoint marker
|
||||
definition. */
|
||||
|
@ -3790,7 +3791,7 @@ stop_reply_extract_thread (char *stop_reply)
|
|||
{
|
||||
if (stop_reply[0] == 'T' && strlen (stop_reply) > 3)
|
||||
{
|
||||
char *p;
|
||||
const char *p;
|
||||
|
||||
/* Txx r:val ; r:val (...) */
|
||||
p = &stop_reply[3];
|
||||
|
@ -3798,7 +3799,7 @@ stop_reply_extract_thread (char *stop_reply)
|
|||
/* Look for "register" named "thread". */
|
||||
while (*p != '\0')
|
||||
{
|
||||
char *p1;
|
||||
const char *p1;
|
||||
|
||||
p1 = strchr (p, ':');
|
||||
if (p1 == NULL)
|
||||
|
@ -6836,7 +6837,7 @@ remote_parse_stop_reply (char *buf, struct stop_reply *event)
|
|||
{
|
||||
struct remote_arch_state *rsa = get_remote_arch_state ();
|
||||
ULONGEST addr;
|
||||
char *p;
|
||||
const char *p;
|
||||
int skipregs = 0;
|
||||
|
||||
event->ptid = null_ptid;
|
||||
|
@ -6860,7 +6861,7 @@ remote_parse_stop_reply (char *buf, struct stop_reply *event)
|
|||
p = &buf[3]; /* after Txx */
|
||||
while (*p)
|
||||
{
|
||||
char *p1;
|
||||
const char *p1;
|
||||
int fieldsize;
|
||||
|
||||
p1 = strchr (p, ':');
|
||||
|
@ -6998,7 +6999,7 @@ Packet: '%s'\n"),
|
|||
else
|
||||
{
|
||||
ULONGEST pnum;
|
||||
char *p_temp;
|
||||
const char *p_temp;
|
||||
|
||||
if (skipregs)
|
||||
{
|
||||
|
@ -7068,7 +7069,7 @@ Packet: '%s'\n"),
|
|||
break;
|
||||
case 'w': /* Thread exited. */
|
||||
{
|
||||
char *p;
|
||||
const char *p;
|
||||
ULONGEST value;
|
||||
|
||||
event->ws.kind = TARGET_WAITKIND_THREAD_EXITED;
|
||||
|
@ -7082,7 +7083,7 @@ Packet: '%s'\n"),
|
|||
case 'W': /* Target exited. */
|
||||
case 'X':
|
||||
{
|
||||
char *p;
|
||||
const char *p;
|
||||
int pid;
|
||||
ULONGEST value;
|
||||
|
||||
|
|
|
@ -3405,9 +3405,9 @@ merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs)
|
|||
the remote protocol and the trace file reader. */
|
||||
|
||||
void
|
||||
parse_trace_status (char *line, struct trace_status *ts)
|
||||
parse_trace_status (const char *line, struct trace_status *ts)
|
||||
{
|
||||
char *p = line, *p1, *p2, *p3, *p_temp;
|
||||
const char *p = line, *p1, *p2, *p3, *p_temp;
|
||||
int end;
|
||||
ULONGEST val;
|
||||
|
||||
|
@ -3565,7 +3565,7 @@ Status line: '%s'\n"), p, line);
|
|||
}
|
||||
|
||||
void
|
||||
parse_tracepoint_status (char *p, struct breakpoint *bp,
|
||||
parse_tracepoint_status (const char *p, struct breakpoint *bp,
|
||||
struct uploaded_tp *utp)
|
||||
{
|
||||
ULONGEST uval;
|
||||
|
@ -3588,14 +3588,15 @@ parse_tracepoint_status (char *p, struct breakpoint *bp,
|
|||
an "uploaded tracepoint". */
|
||||
|
||||
void
|
||||
parse_tracepoint_definition (char *line, struct uploaded_tp **utpp)
|
||||
parse_tracepoint_definition (const char *line, struct uploaded_tp **utpp)
|
||||
{
|
||||
char *p;
|
||||
const char *p;
|
||||
char piece;
|
||||
ULONGEST num, addr, step, pass, orig_size, xlen, start;
|
||||
int enabled, end;
|
||||
enum bptype type;
|
||||
char *cond, *srctype, *buf;
|
||||
const char *srctype;
|
||||
char *cond, *buf;
|
||||
struct uploaded_tp *utp = NULL;
|
||||
|
||||
p = line;
|
||||
|
@ -3703,9 +3704,10 @@ parse_tracepoint_definition (char *line, struct uploaded_tp **utpp)
|
|||
uploaded object. */
|
||||
|
||||
void
|
||||
parse_tsv_definition (char *line, struct uploaded_tsv **utsvp)
|
||||
parse_tsv_definition (const char *line, struct uploaded_tsv **utsvp)
|
||||
{
|
||||
char *p, *buf;
|
||||
const char *p;
|
||||
char *buf;
|
||||
ULONGEST num, initval, builtin;
|
||||
int end;
|
||||
struct uploaded_tsv *utsv = NULL;
|
||||
|
@ -3749,10 +3751,10 @@ free_current_marker (void *arg)
|
|||
the parsed marker definition. */
|
||||
|
||||
void
|
||||
parse_static_tracepoint_marker_definition (char *line, char **pp,
|
||||
parse_static_tracepoint_marker_definition (const char *line, const char **pp,
|
||||
struct static_tracepoint_marker *marker)
|
||||
{
|
||||
char *p, *endp;
|
||||
const char *p, *endp;
|
||||
ULONGEST addr;
|
||||
int end;
|
||||
|
||||
|
|
|
@ -295,7 +295,7 @@ private:
|
|||
};
|
||||
|
||||
extern void parse_static_tracepoint_marker_definition
|
||||
(char *line, char **pp,
|
||||
(const char *line, const char **pp,
|
||||
struct static_tracepoint_marker *marker);
|
||||
extern void release_static_tracepoint_marker (struct static_tracepoint_marker *);
|
||||
extern void free_current_marker (void *arg);
|
||||
|
@ -342,14 +342,14 @@ extern int encode_source_string (int num, ULONGEST addr,
|
|||
const char *srctype, const char *src,
|
||||
char *buf, int buf_size);
|
||||
|
||||
extern void parse_trace_status (char *line, struct trace_status *ts);
|
||||
extern void parse_trace_status (const char *line, struct trace_status *ts);
|
||||
|
||||
extern void parse_tracepoint_status (char *p, struct breakpoint *tp,
|
||||
extern void parse_tracepoint_status (const char *p, struct breakpoint *tp,
|
||||
struct uploaded_tp *utp);
|
||||
|
||||
extern void parse_tracepoint_definition (char *line,
|
||||
extern void parse_tracepoint_definition (const char *line,
|
||||
struct uploaded_tp **utpp);
|
||||
extern void parse_tsv_definition (char *line, struct uploaded_tsv **utsvp);
|
||||
extern void parse_tsv_definition (const char *line, struct uploaded_tsv **utsvp);
|
||||
|
||||
extern struct uploaded_tp *get_uploaded_tp (int num, ULONGEST addr,
|
||||
struct uploaded_tp **utpp);
|
||||
|
|
Loading…
Reference in New Issue