darling-gdb/gdb/gdbserver/mem-break.h
Stan Shebs d3ce09f5bf Add target-side support for dynamic printf.
* NEWS: Mention the additional style.
	* breakpoint.h (struct bp_target_info): New fields tcommands, persist.
	(struct bp_location): New field cmd_bytecode.
	* breakpoint.c: Include format.h.
	(disconnected_dprintf): New global.
	(parse_cmd_to_aexpr): New function.
	(build_target_command_list): New function.
	(insert_bp_location): Call it.
	(remove_breakpoints_pid): Skip dprintf breakpoints.
	(print_one_breakpoint_location): Ditto.
	(dprintf_style_agent): New global.
	(dprintf_style_enums): Add dprintf_style_agent.
	(update_dprintf_command_list): Add agent case.
	(agent_printf_command): New function.
	(_initialize_breakpoint): Add new commands.
	* common/ax.def (printf): New bytecode.
	* ax.h (ax_string): Declare.
	* ax-gdb.h (gen_printf): Declare.
	* ax-gdb.c: Include cli-utils.h, format.h.
	(gen_printf): New function.
	(maint_agent_print_command): New function.
	(_initialize_ax_gdb): Add maint agent-printf command.
	* ax-general.c (ax_string): New function.
	(ax_print): Add printf disassembly.
	* Makefile.in (SFILES): Add format.c
	(COMMON_OBS): Add format.o.
	* common/format.h: New file.
	* common/format.c: New file.
	* printcmd.c: Include format.h.
	(ui_printf): Call parse_format_string.
	* remote.c (remote_state): New field breakpoint_commands.
	(PACKET_BreakpointCommands): New enum.
	(remote_breakpoint_commands_feature): New function.
	(remote_protocol_features): Add new BreakpointCommands entry.
	(remote_can_run_breakpoint_commands): New function.
	(remote_add_target_side_commands): New function.
	(remote_insert_breakpoint): Call it.
	(remote_insert_hw_breakpoint): Ditto.
	(_initialize_remote): Add new packet configuration for
	target-side breakpoint commands.
	* target.h (struct target_ops): New field
	to_can_run_breakpoint_commands.
	(target_can_run_breakpoint_commands): New macro.
	* target.c (update_current_target): Handle
	to_can_run_breakpoint_commands.

	[gdbserver]
	* Makefile.in (WARN_CFLAGS_NO_FORMAT): Define.
	(ax.o): Add it to build rule.
	(ax-ipa.o): Ditto.
	(OBS): Add format.o.
	(IPA_OBS): Add format.o.
	* server.c (handle_query): Claim support for breakpoint commands.
	(process_point_options): Add command case.
	(process_serial_event): Leave running if there are printfs in
	effect.
	* mem-break.h (any_persistent_commands): Declare.
	(add_breakpoint_commands): Declare.
	(gdb_no_commands_at_breakpoint): Declare.
	(run_breakpoint_commands): Declare.
	* mem-break.c (struct point_command_list): New struct.
	(struct breakpoint): New field command_list.
	(any_persistent_commands): New function.
	(add_commands_to_breakpoint): New function.
	(add_breakpoint_commands): New function.
	(gdb_no_commands_at_breakpoint): New function.
	(run_breakpoint_commands): New function.
	* linux-low.c (linux_wait_1): Test for and run breakpoint commands
	locally.
	* ax.c: Include format.h.
	(ax_printf): New function.
	(gdb_eval_agent_expr): Add printf opcode.

	[doc]
	* gdb.texinfo (Dynamic Printf): Mention agent style and
	disconnected dprintf.
	(Maintenance Commands): Describe maint agent-printf.
	(General Query Packets): Mention BreakpointCommands feature.
	(Packets): Document commands extension to Z0 packet.
	* agentexpr.texi (Bytecode Descriptions): Document printf
	bytecode.

	[testsuite]
	* gdb.base/dprintf.exp: Add agent style tests.
2012-07-02 15:29:39 +00:00

188 lines
5.8 KiB
C

/* Memory breakpoint interfaces for the remote server for GDB.
Copyright (C) 2002, 2005, 2007-2012 Free Software Foundation, Inc.
Contributed by MontaVista Software.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef MEM_BREAK_H
#define MEM_BREAK_H
/* Breakpoints are opaque. */
struct breakpoint;
struct fast_tracepoint_jump;
/* Locate a breakpoint placed at address WHERE and return a pointer
to its structure. */
struct breakpoint *find_gdb_breakpoint_at (CORE_ADDR where);
/* Create a new GDB breakpoint at WHERE. Returns -1 if breakpoints
are not supported on this target, 0 otherwise. */
int set_gdb_breakpoint_at (CORE_ADDR where);
/* Returns TRUE if there's any breakpoint at ADDR in our tables,
inserted, or not. */
int breakpoint_here (CORE_ADDR addr);
/* Returns TRUE if there's any inserted breakpoint set at ADDR. */
int breakpoint_inserted_here (CORE_ADDR addr);
/* Clear all breakpoint conditions associated with this address. */
void clear_gdb_breakpoint_conditions (CORE_ADDR addr);
/* Set target-side condition CONDITION to the breakpoint at ADDR. */
int add_breakpoint_condition (CORE_ADDR addr, char **condition);
int add_breakpoint_commands (CORE_ADDR addr, char **commands, int persist);
int any_persistent_commands (void);
/* Evaluation condition (if any) at breakpoint BP. Return 1 if
true and 0 otherwise. */
int gdb_condition_true_at_breakpoint (CORE_ADDR where);
int gdb_no_commands_at_breakpoint (CORE_ADDR where);
void run_breakpoint_commands (CORE_ADDR where);
/* Returns TRUE if there's a GDB breakpoint set at ADDR. */
int gdb_breakpoint_here (CORE_ADDR where);
/* Create a new breakpoint at WHERE, and call HANDLER when
it is hit. HANDLER should return 1 if the breakpoint
should be deleted, 0 otherwise. */
struct breakpoint *set_breakpoint_at (CORE_ADDR where,
int (*handler) (CORE_ADDR));
/* Delete a GDB breakpoint previously inserted at ADDR with
set_gdb_breakpoint_at. */
int delete_gdb_breakpoint_at (CORE_ADDR addr);
/* Delete a breakpoint. */
int delete_breakpoint (struct breakpoint *bkpt);
/* Set a reinsert breakpoint at STOP_AT. */
void set_reinsert_breakpoint (CORE_ADDR stop_at);
/* Delete all reinsert breakpoints. */
void delete_reinsert_breakpoints (void);
/* Reinsert breakpoints at WHERE (and change their status to
inserted). */
void reinsert_breakpoints_at (CORE_ADDR where);
/* Uninsert breakpoints at WHERE (and change their status to
uninserted). This still leaves the breakpoints in the table. */
void uninsert_breakpoints_at (CORE_ADDR where);
/* Reinsert all breakpoints of the current process (and change their
status to inserted). */
void reinsert_all_breakpoints (void);
/* Uninsert all breakpoints of the current process (and change their
status to uninserted). This still leaves the breakpoints in the
table. */
void uninsert_all_breakpoints (void);
/* See if any breakpoint claims ownership of STOP_PC. Call the handler for
the breakpoint, if found. */
void check_breakpoints (CORE_ADDR stop_pc);
/* See if any breakpoints shadow the target memory area from MEM_ADDR
to MEM_ADDR + MEM_LEN. Update the data already read from the target
(in BUF) if necessary. */
void check_mem_read (CORE_ADDR mem_addr, unsigned char *buf, int mem_len);
/* See if any breakpoints shadow the target memory area from MEM_ADDR
to MEM_ADDR + MEM_LEN. Update the data to be written to the target
(in BUF, a copy of MYADDR on entry) if necessary, as well as the
original data for any breakpoints. */
void check_mem_write (CORE_ADDR mem_addr,
unsigned char *buf, const unsigned char *myaddr, int mem_len);
/* Set the byte pattern to insert for memory breakpoints. This function
must be called before any breakpoints are set. */
void set_breakpoint_data (const unsigned char *bp_data, int bp_len);
/* Delete all breakpoints. */
void delete_all_breakpoints (void);
/* Clear the "inserted" flag in all breakpoints of PROC. */
void mark_breakpoints_out (struct process_info *proc);
/* Delete all breakpoints, but do not try to un-insert them from the
inferior. */
void free_all_breakpoints (struct process_info *proc);
/* Check if breakpoints still seem to be inserted in the inferior. */
void validate_breakpoints (void);
/* Insert a fast tracepoint jump at WHERE, using instruction INSN, of
LENGTH bytes. */
struct fast_tracepoint_jump *set_fast_tracepoint_jump (CORE_ADDR where,
unsigned char *insn,
ULONGEST length);
/* Increment reference counter of JP. */
void inc_ref_fast_tracepoint_jump (struct fast_tracepoint_jump *jp);
/* Delete fast tracepoint jump TODEL from our tables, and uninsert if
from memory. */
int delete_fast_tracepoint_jump (struct fast_tracepoint_jump *todel);
/* Returns true if there's fast tracepoint jump set at WHERE. */
int fast_tracepoint_jump_here (CORE_ADDR);
/* Uninsert fast tracepoint jumps at WHERE (and change their status to
uninserted). This still leaves the tracepoints in the table. */
void uninsert_fast_tracepoint_jumps_at (CORE_ADDR pc);
/* Reinsert fast tracepoint jumps at WHERE (and change their status to
inserted). */
void reinsert_fast_tracepoint_jumps_at (CORE_ADDR where);
#endif /* MEM_BREAK_H */